TOOL SYSTEM WITH TOOL COMPONENTS FOR CONFIGURING HONING TOOLS AND MANUFACTURING PROCESS

Abstract

A tool system for configuring honing tools includes at least one tool body that defines a tool axis and an axial bore arranged coaxially to the tool axis, as well as multiple transverse bores oriented perpendicular to the tool axis, wherein the transverse bores form multiple groups around the circumference of the tool body, each group having at least two axially spaced apart transverse bores. The tool system further includes multiple sets of support rail units with guide pins for introducing into transverse bores of a bore group, and also includes at least one set of bolt guide elements for mounting on the tool body, with each set having a bolt guide element for each transverse bore provided for receiving a guide bolt, with a guide bore formed therein, which, when the bolt guide element is mounted on the tool body, runs coaxially with the transverse bore.

Claims

1. A tool system with tool components for configuring honing tools of different effective diameter ranges, wherein the tool components comprise: at least one tool body that defines a tool axis, wherein the tool body contains an axial bore arranged coaxially to the tool axis to receive a feed element, as well as multiple transverse bores oriented perpendicular to the tool axis and open to the axial bore, each designed to receive a guide pin, wherein the transverse bores form multiple groups of bores distributed around the circumference of the tool body, each group having at least two transverse bores which are axially spaced apart from one another; a first set of support rail units and at least one second set of support rail units, wherein each support rail unit comprises a support rail which has, on an inner side facing the tool body, at least two guide pins that can be inserted into transverse bores of a bore group and is designed to support at least one honing stone; each set of support rail units comprises a number of support rail units corresponding to the number of bore groups, support rail units of the first set have first guide pins with a first length, and support rail units of the second set have second guide pins with a second length, wherein the second length is greater than the first length; at least one set of guide pin elements designed for mounting on the tool body, wherein a set of guide pin elements has a bolt guide element with a guide bore formed therein for each of the transverse bores intended to receive a guide pin, which guide bore runs coaxially with the transverse bore when the bolt guide element is mounted on the tool body.

2. The tool system according to claim 1, wherein a diameter of the first guide pins is adapted to a diameter of the transverse bores in the tool body in such a manner that a sliding guide of the first guide pins can be produced in the tool body and that the diameter of the second guide pins is smaller than the diameter of the first guide pins and is adapted to a diameter of the guide bore of a guide pin element in such a manner that a sliding guide of the second guide pins can be produced in the guide pin element.

3. The tool system according to claim 1, wherein a set of bolt guide elements for each of the bore groups comprises an elongate guide holder which has a number of bolt guide elements corresponding to the number of transverse bores in a bore group, wherein the bolt guide elements are interconnected.

4. The tool system according to claim 3, wherein the guide holder has mounting structures for establishing a detachable connection, in particular a screw connection, to the tool body.

5. The tool system according to claim 1, wherein a set of guide pin elements comprises a separate guide pin element for each transverse bore intended to receive a guide pin, in particular for each of the transverse bores, preferably in the form of a guide column.

6. The tool system according to claim 1, wherein the tool body is a one-piece component that alternates in the axial direction between tube sections with a medium wall thickness and transverse bore sections containing transverse bores lying therebetween, wherein in the transverse bore sections, each of the transverse bores has an outwardly extending column section, in such a manner that a bore length of the transverse bores is greater than the medium wall thickness in the tube sections.

7. The tool system according to claim 1, wherein the transverse bores are designed as radial bores oriented radially to the tool axis.

8. The tool system according to claim 1, wherein the feed element has multiple axially offset conical sections with inclined surfaces and that the guide pins have complementary inclined surfaces at their free ends.

9. The tool system according to claim 8, wherein the feed element has an axial bore with an internal thread at a machine-side end section and that means are provided to secure the feed element against rotation within the axial guide opening.

10. The tool system according to claim 1, wherein the tool components comprise a plurality of interchangeable units that can be mounted interchangeably on a support rail of a support rail unit and each have a rail-shaped adapter plate, which has on one side receiving structures for receiving at least one honing stone and has on an opposite mounting side connecting elements of a connection device for the detachable connection the adapter plate to the support rail.

11. The tool system according to claim 10, wherein the support rail has two through-holes which are spaced apart from one another and extend from the outer side to the inner side and that the interchangeable unit has connecting elements in the form of pins that can be introduced without play into the through-bores, wherein the pins preferably have a threaded section to create a screw connection between the interchangeable unit and the support rail unit.

12. The tool system according to claim 1, wherein the tool system optionally comprises components of a coolant and lubricant supply system that can be mounted on the tool body, in particular a connection and distribution ring that can be mounted on the tool body, in which a circumferential distribution channel is formed, as well as multiple nozzle pipes the communicate with the distribution channel, can be mounted axially parallel to the tool axis and at a radial distance from the tool body, with nozzle openings for dispensing coolant and lubricant.

13. The tool system according to claim 1, wherein the tool system comprises at least two, in particular exactly three differently designed tool bodies.

14. A method for manufacturing a honing tool, comprising: selecting a tool body that defines a tool axis, wherein the tool body has an axial bore arranged coaxially to the tool axis to receive a feed element, as well as multiple transverse bores oriented perpendicular to the tool axis and open to the axial bore, each designed to receive a guide pin, wherein the transverse bores form multiple bore groups distributed around the circumference of the tool body, each group having at least two transverse bores which are axially spaced apart from one another; inserting a feed element into the receiving bore; selecting a set of support rail units with a number of support rail units corresponding to the number of bore groups, wherein each support rail unit has a support rail which has, on an inner side facing the tool body, at least two guide pins that can be inserted into the transverse bores of a bore group and is designed to support at least one honing stone; fastening at least one honing stone to each of the support rail units; mounting the support rail units on the tool body by introducing the guide pins of the support rail units into the transverse bores provided therefor; wherein tool components of a tool system according to claim 1 are used for manufacturing the honing tool.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Further advantages and aspects of the invention result from the claims and from the description of exemplary embodiments of the invention, which are explained below with reference to the figures.

[0051] FIGS. 1 to 3 show three tool bodies of an embodiment of a tool system in an oblique perspective view;

[0052] FIG. 4 shows a longitudinal section through components of a honing tool that is assembled using a tool body according to FIG. 1;

[0053] FIG. 5 shows an oblique perspective view of a variant in which components of a coolant and lubricant supply system are mounted on the tool body;

[0054] FIGS. 6 to 9 show different views of support rail units that can be used in conjunction with one of the tool bodies in FIGS. 1 to 3;

[0055] FIGS. 10 and 11 show an oblique perspective view and a longitudinal section, respectively, of an exemplary embodiment of a guide holder with integrated bolt guide elements for expanding the usable effective diameter range;

[0056] FIG. 12 shows a guide holder with an inserted support rail unit;

[0057] FIG. 13 shows a longitudinal section of a region of the honing tool, in which a guide holder is fastened to the tool body and a support rail unit is inserted into the combination of the tool body and guide holder;

[0058] FIG. 14 shows another tool holder with bolt guide elements fastened thereto;

[0059] FIGS. 15A to 15C show three examples of the embodiment of a fixed, precisely positioned connection between a tool holder and a bolt guide element;

[0060] FIG. 16 shows an oblique perspective view of a honing tool assembled with the help of tool components of the tool system for honing bores with a relatively large diameter.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

[0061] Below are presented exemplary embodiments of a modular tool system that includes a plurality of mutually coordinated tool components with the help of which honing tools can be configured for different applications. The example provided is a tool system with which honing tools can be assembled that can cover a total effective diameter range from 110 mm to 600 mm. Other total effective diameter ranges can of course also be covered based on the same principles.

[0062] The exemplary honing tools of modular construction are particularly suitable for machining deep bores with large diameters, as found, for example, in pipes for pipelines or in cylinder liners for larger internal combustion engines. For the sake of clarity, functionally and/or structurally similar or identical components are generally assigned the same reference numerals in all examples to avoid confusion.

[0063] The tool system comprises exactly three differently designed tool bodies overall, which are shown in FIGS. 1 to 3 in an oblique perspective view, namely a first tool body 100-1 (FIG. 1 and longitudinal section in FIG. 4), the second tool body 100-2 and the third tool body 100-3. As can be clearly seen in FIG. 1 and the longitudinal section in FIG. 4, the tool body 100-1 defines a tool axis 112 that can also be referred to as the longitudinal central axis of the tool body and corresponds to the rotational axis of the honing tool during the honing operation. Each of the tool bodies (general reference sign 100) is manufactured as a single piece from a relatively thick-walled tube made of steel with the help of material-removing machining processes such as milling, turning, electrical discharge machining and possibly finishing, etc., in order to create a stable base for the honing tool. However, a tool body can also be assembled from multiple parts.

[0064] In the tool body, a cylindrical axial bore 114 is provided coaxially to the tool axis 112, extending through most of its length from the machine-side end 116 to the free end 117 of the tool body. The axial bore serves both as a receiving bore and guide bore for a feed element 120 inside the tool, which feed element comprises in the example provided three axially spaced conical sections 122 with inclined surfaces for feeding support rail units which will be explained later.

[0065] At the machine-side end section of the feed element 120, an axial bore with an internal thread 124 is formed, with a longitudinal groove running along its outer side there, into which a dowel pin engages to form a rotation lock for the feed element 120. A set screw 128 with a wide head and a threaded section with an external thread matching the internal thread 124 is screwed into the internal thread at its front face. Rotating the set screw 128 with the help of an Allen key, for example, causes an axial displacement of the feed element 120. This creates a rotational expansion that is compatible with many conventional drive and feed systems for larger honing tools.

[0066] The tool body 100-1 has twelve transverse bores (general reference sign 130) aligned perpendicularly to the tool axis 112, the bore axes 132 of which transverse bores are each oriented radially to the tool axis 112, so that the transverse bores 130 are also referred to as radial bores 130 in the following. The transverse bores or radial bores 130 extend from the outside to the axial bore 114, forming a total of four bore groups 135 that are evenly distributed around the circumference of the tool body, with each group containing three axially parallel radial bores 130 arranged equidistant to one another. A total of four bore groups are provided, each offset by 90 around the circumference and having three radial bores each.

[0067] The tool body 100 is more or less tubular overall and has tube sections 113 and transverse bore sections 115 containing transverse bores 130 alternating in the axial direction. In the region of the tube sections, the tool body has an average wall thickness that corresponds to approximately 20% to 30% of the average outer diameter of the tool body in the wall sections. Within the transverse bore sections 115, for each of the transverse bores, an outwardly projecting column section 134 is formed, in such a manner that the bore length of a radial bore (transverse bore) 130 measured in the radial direction is substantially greater than the average wall thickness, for example approximately twice as large. The outwardly projecting column sections 134 are approximately shaped as cylindrical sleeves. The embodiment with outwardly projecting column sections provides a weight-optimized embodiment of the tool body, wherein at the same time, the radial bores 130 provide relatively long guide lengths for the guide pins of the support rail units which will be explained later.

[0068] The tool system also comprises a plurality of support rail units 150 that fit the first tool body or can be used with it, in order to configure a honing tool. A support rail unit 150 that fits the first tool body will be described in greater detail with the help of FIGS. 6 to 9. This belongs to a first set of support rail units that fit into a first tool body 100-1. The support rail unit 150 comprises a support rail 155 made of steel with a flat rectangular cross-section and a length that is slightly greater than the length of the associated bore group 135. In the example provided, three cylindrical guide pins 160 are fastened to the inner side of the support rail which will later face the tool body. These guide pins 160 are inserted at one end into corresponding precision bores in the support rail 155 and are fastened there by soldering, welding, gluing or similar methods. At their free ends, the guide pins 160 have inclined surfaces 161 that correspond to the inclined surfaces of the conical sections 122 of the expansion element 120. The axial spacing of the guide pins 160 corresponds to the axial spacing of the associated transverse bores 130. The guide pins project from the support rail with a first length L1. All guide pins in a set of support rail units are the same length.

[0069] In addition to at least one set of support rail units of this kind with relatively short guide pins, there is still at least one second set of support rail units, the guide pins of which have a greater free length and preferably also a different guide cross section or diameter.

[0070] In the example provided, a support rail unit 150 is a modular unit which, in addition to the support rail 155 with the guide pins 160 fastened thereto, also has a flat adapter plate 170 that acts as a carrier for the honing stones 175 attached thereto and has, for this purpose, a flat rectangular groove on one side for receiving the honing stones (cf. FIG. 9). The rectangular groove on the outside is used to receive one or more honing stones that can be glued into the groove, for example. In the support rail, two axially parallel through-holes 157 are provided which are each arranged in the region between two guide bolts. The adapter plate 170 has sleeve-shaped projections 172 on its underside facing the support rail that fit precisely into the through-holes 157 of the support rail, ensuring that the adapter plate can be fastened to the support rail in the correct position. The connection between the adapter plate 170 and the support rail 155 is structurally designed to be easily detachable. For this purpose, an internal thread is provided in the region of the projections 172 of the adapter plate 170, into which the external thread of a threaded section of a fastening screw 175 fits, so that, as shown in FIG. 7, the adapter plate 170 can be positioned correctly and securely but can also be detached from the support rail by means of a screw connection. In this way, replacing honing strips after wear, for example, is particularly quick and convenient, while the correct positioning of the honing strips is maintained. The use of only two screws makes a quick exchange of the adapter plate.

[0071] Using the first tool body 100-1 and four support rail units of the kind shown in FIG. 6 that are identical to one another and have short guide pins 160, a honing tool can be assembled that can be used for honing within a first effective diameter range. For this purpose, the three guide pins 160 of a support rail unit are each introduced into the three associated radial bores 130 of a bore group 135 in the radial direction and pushed inwards until the inclined surfaces 161 of the guide pins rest on the inclined surfaces of the expansion cones 122 of the feed element 120. With the help of tension springs that engage with hook sections of the support rail units, the support rail units are radially preloaded onto the expansion cones and can be fed radially outwards when the feed element moves axially towards the free end.

[0072] To ensure a play-free and yet smooth radial guidance of the movement of the support rail units 150, the diameters DF1 of the cylindrical first guide pins 160 are matched to the diameters DR1 of the transverse bores in the first tool body (also referred to as the first diameters) in such a way that a radial sliding guide of the guide pins 160 is formed in the tool body.

[0073] Using the first tool body 100-1, honing tools can also be configured that are suitable for a larger effective diameter range than those that can be achieved using the support rails 150 with the shortest guide pins. For this purpose, at least one set of support rails can be assigned to the selected first tool body 100-1, which has essentially the same structure as the support rail 150 in FIGS. 6 and 7, wherein, however, the guide pins (second guide pins 160L) project from the support rail by a greater second length L2. To illustrate this, a second guide pin 160L with length L2 is shown with dashed lines on the left in FIG. 7.

[0074] These guide pins could have the same guide cross section or diameter DF1 as the first guide pins 160 and be guided directly in the transverse bores 130 of the first tool body 100-1. However, when fed radially outwards, this can lead to the problem that the cantilever length of the guide pins becomes relatively large, resulting in instability of the honing tool under process forces when which extended further, could potentially lead to vibrations or other disturbances.

[0075] To avoid problems of this kind, the tool system comprises at least one set of bolt guide elements 210 that are adapted to the first tool body 100-1 in such a way that they can be mounted on it or fastened to it. A set of bolt guide elements of this kind has a guide bore 212 for each transverse bore or radial bore 130 of the tool body which, when the bolt guide element is fastened to the tool body, runs coaxially with the associated transverse bore.

[0076] A possible embodiment of the bolt guide elements will now be explained in greater detail with reference to FIGS. 10 to 13. FIGS. 10 and 11 show an exemplary embodiment of an elongated guide holder 200 which is a component manufactured separately from the tool body, preferably in one-piece, of suitable steel, as an oblique perspective and in longitudinal section. The guide holder 200 comprises three bolt guide elements 210 which are interconnected by a rail-shaped connecting piece 215. Each of the bolt guide elements 210 has a continuous guide bore 212 which is followed on the side facing away from the connecting rail by a substantially cylindrical, enlarged section 214. Furthermore, each bolt guide element has at least one through-hole 211 for receiving and passing through a fastening screw. The inner diameter of the enlarged section 214 is adapted to the outer diameter of the sleeve-shaped projections 134 in the transverse bore sections in such a manner that the guide holder 200 can be fitted onto these column-like projections, wherein the column-like projections then engage with the enlarged sections 214 and thereby ensure reliable positioning of the guide holder on the tool body.

[0077] The guide bores 212 within the bolt guide elements 210 run precisely axially parallel to one another within the framework of the manufacturing tolerances with axial distances that exactly correspond to the axial distances of the transverse bores 130 of a bore group. When the guide holder 200 is fitted onto the sleeve-shaped sections of a bore group and fastened by means of the fastening screws, the axes of the guide bores 212 automatically align with high precision coaxially to the radial bores 130.

[0078] FIG. 13 shows a partial section through the free end of an assembled honing tool 300. The guide holder 200 is fastened to the tool body 100-1 by fastening screws. In the configuration shown, a support rail unit 150 is inserted with second guide pins 160L that are longer than the first guide pins that can be used without a guide holder. The second guide pin passes through the guide opening 212 of the guide holder 200 and the radial bore, with its inclined end resting on the expansion cone.

[0079] A distinctive feature in this case is that the guiding diameter DF2 of the second guide pin 160L is slightly smaller (e.g. by a few tenths of a millimetre) than the guiding diameter DR1 of the shorter first guide pin 160. At the same time, the guiding diameter DR2 of the guide bores 212 in the bolt guide elements 210 is slightly smaller than the diameter DR1 of the transverse bores. This ensures that the longer guide pins 160L are guided exclusively in the guide bores 212 of the guide holder 200, but not in the slightly larger transverse bores 130 in the tool body. As a result, constraining forces between the tool body and the guide holder can be avoided. The reliable sliding guide in the guide bore 121 of the bolt guide elements 210 lies at a greater radial distance from the tool axis 112 than the guide of the shorter guide pins, which takes place in the tool body itself.

[0080] The first tool body 100-1 can therefore be used in at least two different configurations. If it is used bare, i.e. without attaching bolt guide elements or guide holders, support rail units with short guide pins can be securely guided into the transverse bores 130. If support rail units with longer guide pins 160L are to be mounted and securely guided, a set of guide rails 200 (one for each bore group) is screwed onto the tool body. In this way, a modified tool body is created, so to speak, which is then suitable for guiding support rail units with longer guide pins at a greater distance from the tool axis, so as to ensure that even when fully extended, the overhang beyond the guide bore 212 remains short enough to allow stable operation, even under high process forces.

[0081] The second tool body 100-2 has a similar structure to the first tool body 100-1 but is designed to form honing tools that function in a process stable manner for a medium effective diameter range. The second tool body is also produced as a single piece from a tubular semi-finished product, has an axial through-bore coaxial to the tool axis and has four bore groups, each offset by 90 around the circumference, each with three axially offset radial bores. The axial spacings are identical to the axial spacings of the first tool body. Unlike in the case of the first tool body, the axial bore 114 has a larger diameter and the wall thickness of the tubular sections is greater, ensuring high stability. In the transverse bore sections 115, the transverse bores 130 oriented radially to the tool axis, i.e. the radial bores 130, are positioned at a greater distance from the tool axis. The sleeve-shaped projections 134 rest on cuboid-shaped bases, so that relatively long guiding lengths can be provided in the transverse bores at a greater distance from the tool axis 112.

[0082] If the second tool body 100-2 is used without additional components, support rail units with guide pins of different lengths can be used in a similar way to the first tool body. However, for those with the shortest guide pins, the guide pins are longer than the shortest guide pins that can be used in the first tool body. If the diameter range is to be extended to larger diameters, a guide holder 200, as described, can be placed onto the sleeve-shaped projections 134, in order to shift the location of the radial guide further outwards.

[0083] It is also possible to use the second tool body 100-2 to create a modified tool body by attaching bolt guide elements, said tool body working for support rail units with relatively long guide pins. For example, a guide holder of the kind shown in FIGS. 10 to 13 could be used, in which case all bolt guide elements 210 for a bore group are integrated into a single component.

[0084] With the help of FIG. 14, another possibility is described in which a separate bolt guide element 310 is provided for each radial bore 130 on the third tool body 100-3. The third tool body 100-3 can be modified with the help of twelve bolt guide elements 310 of this kind in such a way that, using this modified tool body, honing tools can be assembled for an effective diameter range, the lower and upper limits of which are shifted to larger diameter values compared with using a bare second tool body.

[0085] The bolt guide elements 310 in this example are each fastened to the sleeve-shaped projections 134 of the individual radial bores in such a manner that the guide bore 312 formed in a bolt guide element runs coaxially with the corresponding radial bore 130. The guide bores 312 have a smaller diameter than the corresponding radial bores, similar to the first example. The support rail units adapted thereto have corresponding guide pins with a diameter that, together with the guide bores 312, forms a sliding guide.

[0086] The individual bolt guide elements 310 are also referred to as guide columns in this case, as they provide guidance for the guide pins of the support rails and have a column-like structure with a length measured in the axial direction that is smaller than the diameter. The guide columns are positioned in the bores provided in the tool body with a press fit and thread and are fixedly connected to the tool body. A fixed connection can be established, for example, by welding, in particular laser welding, or by other means.

[0087] The guide columns are very simple components that can be manufactured from a material with specific properties and without thermal treatment. For example, tool steel or pre-hardened tool steel can be used. FIG. 15A shows an example of an unthreaded guide column which is inserted into the bore in the tool body with a tapered pin and then permanently connected to said tool body by welding, gluing or similar methods. The variants in FIGS. 15B and 15C each have corresponding threaded sections on the tool body and on the guide column to allow the guide columns to be screwed onto the tool body. In the variant shown in FIG. 15B, the guide column has a tapered centring pin 311 that fits into a cylindrical recess on the tool body for positional security and is followed by a threaded section. The screw connection can then still be secured against accidental loosening, for example by an adhesive.

[0088] With the help FIG. 16, an exemplary of embodiment of a fully assembled honing tool 400 is shown, which was built using the third tool body 100-3. Unlike the first and second tool bodies, this one does not have any outwardly projecting cylindrical sleeves at the individual radial bores but rather outwardly projecting cube-shaped sections 434, into which a radially aligned stepped bore is introduced, the inner region of which forms the radial bore, followed by an outwardly extending section with a larger diameter, which transitions inwards to the radial bore at a radial step. Matching this, individual bolt guide elements 410 or guide columns 410 are provided, which have a fastening section at the non-visible inner end, followed outwardly by a flange-like section 412 and then a longer sleeve-shaped section 415. The guide columns thereby formed have a guide bore passing through them that forms a sliding guide with the guide pin of the corresponding support units.

[0089] In order to ensure a smooth, vibration-free honing process despite the large effective diameter of the honing tool 400, the tool system also has sets of stabilization rings 430 that can be attached around the circumference of the guide columns 410, as shown, thereby enabling a low-vibration and noise-reduced honing process. Each stabilization ring has four radial bores offset by 90 around the circumference, into which the outwardly projecting sleeve-shaped sections 415 of the guide columns fit with substantially no play. Between the radial bores in the circumferential direction, elongated holes are formed to reduce the weight of the rings.

[0090] During the assembly of the honing tool 400, the guide columns 410 are first inserted from within into the radial bores of the stabilization rings 430 until the flange-like projection contacts the ring from the inside. The stabilization ring with the guide columns attached thereto can then be slid over the tool body. A separate stabilization ring is provided for each transverse bore section. Once the stabilization ring is correctly positioned, the inner fastening sections of the guide columns 410 can be introduced into the receiving bores on the tool body and the guide columns can then be fastened there. After that, the four support rail units can be attached to the honing tool by introducing the respective guide pins into the corresponding guide bores of the guide columns 410 and the radial bores of a bore group coaxial therewith, until the slanted inner ends of the guide pins come into contact with the conical surfaces of the feed element.

[0091] The tool system, at least in the variant described below, also comprises tool components of a coolant supply system 180, which can be optionally attached to a tool body. In the example shown in FIG. 5, the components are attached to the first tool body 100-1. They comprise a connection and distribution ring 182, in which a circulating distribution channel is formed, which can be exposed to pressurized coolant fluid via a connection nozzle that is not shown. Starting from the distribution channel, four nozzle tubes 185 extend axially parallel to the tool axis 112 and at a radial distance from the tool body towards a ring-shaped holding element 183 which can be screwed onto the free end of the tool body. The nozzle tubes 185 each have two circumferentially offset nozzle openings at the height of the transverse bore sections, through which coolant lubricant can be sprayed onto the support rail units with honing stones located adjacent in the circumferential direction. Corresponding component sets are provided for each of the differently sized tool bodies, differing primarily in the diameter of the ring-shaped components to be attached to the tool body.

[0092] In the example provided, honing tools constructed with the help of the first tool body 100-1 can cover effective diameters in the range of 110 mm to 200 mm; using the second tool body 100-2, honing tools with effective diameters from 200 to t 300 mm can be configured and using the third tool body, an effective diameter range from 300 mm to 600 mm can be covered, provided the appropriate guide columns are mounted on the tool body 100-3 for the larger diameters.

[0093] The manufacturing of the components of the tool system is relatively cost-efficient overall. For the total diameter range, only three different tool bodies are required in the example provided. To produce the tool bodies, tubular semi-finished products are completely machined in a single setup by turning, milling and, if necessary, additional manufacturing processes. Subsequently, it is only necessary to grind the bore for the expansion element. By selecting a material with special properties, e.g. pre-hardened tool steel, thermal treatment of the tool body after shaping is not required. The bridging of the desired effective diameter ranges is achieved with the help of the guide columns and/or guide holders, i.e. with the help of the additionally attachable bolt guide elements. These can be detachably connected to the tool body by means of a screw connection, for example, as in the case of the guide holders. Alternatively, a permanent attachment, for example by welding or similar methods, is also possible, as demonstrated in the example provided of the guide columns. Both the guide holders and the guide columns can also be manufactured from suitable material without subsequent thermal treatment. The overall result is a relatively lightweight, framework-like modular structure of the honing tools, with the tool body at the centre and functionally components extending radially outwards. As with a construction kit, in this case a user can select the tool components that are suitable for their purpose and compatible with one another and thereby configure an appropriate honing tool.

[0094] The tool system may comprise sets of adapter plates with different heights of the rail-shaped section, so that honing stones can be attached to the same support rail at different distances from the support rail. By using adapter plates of different thicknesses, certain effective diameter ranges can be covered with identically dimensioned support rail units. When re-tooling, the honing stone, or honing stones, can be removed from the previously used adapter plate and this can then be reused.