Tool and method for inserting and removing components

Abstract

A tool for inserting and removing components, in particular bearings, bushes or the like, particularly in the automotive sector, has a spindle, a first sleeve body having a first ramp-form outer circumferential surface and a through-hole, through which the spindle can be axially guided, a second sleeve body having a second ramp-form outer circumferential surface and a through-hole, through which the spindle can be axially guided, and also a first pressure body and a second pressure body.

Claims

1. A system comprising: a component, wherein the component is a single piece and comprises an inner hole; a component mount to receive the component; and a tool for inserting and removing the component into or from the component mount, wherein the component includes the inner hole extending from a first side of the component to an opposed second side of the component, the tool comprising: a spindle; a first sleeve body with a first ramp-form outer circumferential surface for resting against the component in a clearance-free and centred manner, a first cylindrical outer circumferential surface that axially adjoins and directly continues without a step to said first ramp-form outer circumferential surface, and a through-hole, through which the spindle can be axially guided; a second sleeve body with a second ramp-form outer circumferential surface for resting against the component in a clearance-free and centred manner, a second cylindrical outer circumferential surface that axially adjoins and directly continues without a step to said second ramp-form outer circumferential surface, and a through-hole, through which the spindle can be axially guided; a first pressure body which can be coupled to the first sleeve body to axially apply pressure thereto; a second pressure body which can be coupled to the second sleeve body to axially apply pressure thereto; and a striking device including an impact component configured for being coupled to the spindle and a striking body which is movable against an impact body of the impact component such that a force is applied axially to the spindle to move the component out of or into the component mount, wherein, with the spindle configured to extend through the through-holes of the first and second sleeve bodies and the first ramp-form outer circumferential surface and the second ramp-form outer circumferential surface face each other, the ramp-form outer circumferential surfaces respectively taper along the respective sleeve centre axis such that the first and second ramp-form surfaces are configured for being introduced in part into the inner hole of the component from the first and second sides wherein the through-hole of the first sleeve body includes a cylindrical portion and a conical portion that axially adjoins the cylindrical portion and widens the internal diameter of the respective through-hole, and wherein the through-hole of the second sleeve body includes a cylindrical portion and a conical portion that axially adjoins the cylindrical portion and widens an internal diameter of the respective through-hole, and wherein the first sleeve body and the second sleeve body at least partly extend axially into the inner hole of the component and thereby are automatically centered with respect to the inner hole of the component due to the rotational symmetries of the first ramp-form outer circumferential surface of the first sleeve body and of the second ramp-form outer circumferential surface of the second sleeve body relative to the respective sleeve center axis.

2. A method for inserting or removing components into or from a component mount in the system of claim 1, comprising the steps: bringing the first ramp-form outer circumferential surface of the first sleeve body into contact with a first end region of a wall, defining the inner hole, of the component; bringing the second ramp-form outer circumferential surface of the second sleeve body into contact with a second end region, opposite the first end region, of the wall, defining the inner hole, of the component, the spindle being axially guided through the through-hole in the first sleeve body, through the inner hole inside the component and also through the through-hole in the second sleeve body; axially applying a force to the first sleeve body in a direction of the second sleeve body by means of the first pressure body; axially applying a force to the second sleeve body in a direction of the first sleeve body by means of the second pressure body; and axially applying a force to the spindle and thereby moving the component out of or into the component mount; wherein the component mount is a bearing mount.

3. The method of claim 2, wherein a force is applied axially to the spindle by a jolt-wise application of said force as the result of a movement of the striking body against the impact body of the impact component coupled to the spindle.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) In the following, the invention will be described with reference to the drawings, in which:

(2) FIG. 1 is a sectional view of a tool according to an embodiment of the present invention, the tool being shown in an assembled state during the insertion or removal of a component;

(3) FIG. 2 is a schematic view of a tool, present as a tool set, according to an embodiment of the present invention;

(4) FIG. 3 shows a striking device of the tool according to a further embodiment of the present invention;

(5) FIG. 4 is a sectional view of a sleeve body of the tool according to a further embodiment of the present invention, the sleeve body having a concavely running ramp-form outer circumferential surface; and

(6) FIG. 5 is a sectional view of a sleeve body of the tool according to a further embodiment of the present invention, the sleeve body having a convexly running ramp-form outer circumferential surface.

(7) In the drawings, the same reference signs denote identical or functionally identical components, unless indicated otherwise.

DETAILED DESCRIPTION OF EMBODIMENTS

(8) FIG. 1 shows by way of example a tool 1 according to an embodiment of the present invention in an assembled state during the insertion or removal of a component 2 into or from a component mount 3. The component 2 can be formed in particular by a bearing, as shown schematically in FIG. 1. In particular, the component 2 can be a wheel bearing of a motor vehicle. However, in general the component 2 can be formed by a bearing, a sealing element, a bush or the like, such as silent bearings, hydraulic mounts, ball bearings, shaft seals, rubber bearings or the like.

(9) The tool 1 is provided for inserting the component 2 into or removing the component from the component mount 3, and it has a spindle 10, a first sleeve body 11, a second sleeve body 21, a first pressure body 31 and a second pressure body 32. Furthermore, the tool can optionally have a coupling element 40. In addition, the tool 1 can optionally also have a striking device 50, as shown by way of example in FIG. 3.

(10) As shown by way of example in FIG. 2, the tool 1 can be present according to the modular principle as a tool set which has a selection of different spindles 10, different sleeve bodies 11, 21 and/or different pressure bodies 31, 32. The tool set can optionally also have a selection of different coupling elements 40 and/or different striking devices 50.

(11) The spindle 10 is configured as an elongate shaft or rail with a longitudinal axis L10 which defines an axial direction. As shown schematically in FIGS. 1 and 2, the spindle 10 can have in particular an external thread 17. In particular, a plurality of spindles of different lengths I10 or with different external diameters d10 can be provided in the tool set. For example, a spindle 10 with a length I10 of 25 cm, a spindle 10 with a length I10 of 35 cm and a spindle 10 with a length I10 of 20 cm can be provided. In general, the length I10 of the spindle 10 can be in particular within a range of between 120 cm and 10 cm. Additionally or alternatively to the different lengths I10, it is also possible to provide a plurality of spindles 10 with different external diameters d10 in the tool set. For example, one of the spindles 10 can have an ISO metric thread of diameter M10, a further spindle 10 can have an ISO metric thread of diameter M16 and a further spindle 10 can have an ISO metric thread of diameter M18. Of course, it is also possible to provide spindles 10 which have different types of thread, in particular trapezoidal threads, Whitworth threads, round threads, buttress threads or the like, In general, the external diameter d10 of the spindle 10 can lie within a range of between 5 mm and 50 mm.

(12) The first sleeve body 11 has a first ramp-form outer circumferential surface 11a and a through-hole 12. The spindle 10 can be guided axially through the through-hole 12. In the assembled state of the tool 1 which is prepared in particular for inserting or removing the component 2, the spindle 10 has been guided axially through the through-hole 12 in the first sleeve body 11, as shown by way of example in FIG. 1.

(13) The second sleeve body 21 has a second ramp-form outer circumferential surface 21a and a through-hole 22. The spindle 10 can be guided axially through the through-hole 22 in the second sleeve body 21. In the assembled state of the tool 1, the spindle 10 has been guided axially through the through-hole 22 in the second sleeve body 21, as shown by way of example in FIG. 1.

(14) As shown in FIG. 1, the first and the second outer circumferential surface 11a, 21a of the sleeve bodies 11, 21 can be formed conically. As shown by way of example in FIG. 4, the outer circumferential surface 11a, 21a of the first and/or second sleeve body 11, 21 can also be formed with a concave curvature. Furthermore, FIG. 5 shows that a convexly curved shape of the outer circumferential surface 11a, 21a of the first and/or second sleeve body 11, 21 can also be provided.

(15) In the following, for the sake of simplicity, reference will only be made to a conical shape of the outer circumferential surface 11a, 21a of the sleeve bodies 11, 21. Unless indicated otherwise, the details also apply analogously to a generally ramp-form shape, in particular to a convexly or concavely curved shape of the outer circumferential surface 11a, 21a of the respective sleeve body 11, 21.

(16) The second sleeve body 21 can be provided such that the second conical outer circumferential surface 21a is positioned facing the first conical outer circumferential surface 11a. Particularly in the assembled state of the tool, the first sleeve body 11 and the second sleeve body 21 are pushed onto the spindle 10 such that the first outer circumferential surface 11a and the second outer circumferential surface 21a are oriented facing one another, as shown in FIG. 1.

(17) As shown schematically in FIG. 2, the conical outer circumferential surfaces 11a, 21a respectively extend as a surface of revolution around a sleeve centre axis L11, L21, and respectively include therewith a cone angle α. As also shown schematically in FIG. 2, the sleeve bodies 11, 21 can respectively have a conical region 13, 23, i.e. generally an axially tapering ramp region, and a cylindrical region 14, 24 which axially adjoins said conical region. The cylindrical regions 14, 24 each have an outer circumferential surface 14a, 24a which extends cylindrically around the sleeve centre axis L11, L21.

(18) The first sleeve body 11 can have a first end face 11b which is located opposite the first conical outer circumferential surface 11a with respect to the first sleeve centre axis L11 and which is provided to be contacted by the first pressure body 31. The second sleeve body 21 can have a second end face 21b which is located opposite the second conical outer circumferential surface 21a with respect to the second sleeve centre axis L21 and which is provided to be contacted by the second pressure body 32. In the assembled state of the tool 1, the pressure bodies 31, 32 can be respectively contacted on the end faces 11b, 21b, and they respectively rest against said end faces to apply pressure, as shown by way of example in FIG. 1.

(19) The through-holes 12, 22 in the sleeve bodies 11, 21 can be respectively configured as cylindrical holes. As shown by way of example in FIG. 1, it can be provided in particular that the through-holes 12, 22 have in each case a cylindrical portion 15, 25 and a conical portion 16, 26 which axially adjoins the cylindrical portion and widens the internal diameter of the respective through-hole 12, 22.

(20) As shown by way of example in FIG. 2, the tool set can comprise a selection of different sleeve bodies 11, 21. In particular, a plurality of sleeve bodies 11, 21 with different external diameters d11, d21 and/or with different cone angles α can be provided. Of course, a plurality of sleeve bodies 11, 21 having through-holes which differ in diameter can also be provided. Furthermore, the same tool set can contain sleeve bodies 11, 21 with different ramp-form shapes of the outer circumferential surface 11a, 21a.

(21) The first and the second pressure body 31, 32 are respectively provided for applying pressure to the sleeve bodies 11, 21 and can be configured in particular as screw-down nuts, as shown schematically in FIGS. 1 and 2. In particular, the pressure bodies 31, 32 can be respectively configured in the shape of a hat with a functional region 33, 34 and a band 35, 36, as can be seen in particular in FIG. 2. The band 35, 36 has a greater external diameter than the functional region 33, 34 and is provided for resting against the end face 11b, 21b of the respective sleeve body, as shown schematically in FIG. 1. In particular, the screw-down nuts can have an internal thread 37, by which they can be screwed onto the spindle 10. The functional region 33, 34 can be configured in particular as a hexagon, as shown schematically in FIG. 2.

(22) As shown by way of example in FIG. 2, the tool set can comprise a selection of different pressure bodies 31, 32. In particular, the pressure bodies 31, 32 can have different internal diameters and different internal threads.

(23) As shown in particular in FIG. 2, the tool 1 can also have a coupling element 40 which can be coupled to an end portion 10A of the spindle 10. In particular, the coupling element 40 can have an internal thread 41, as shown schematically in FIG. 2, by which the coupling element 40 can be coupled releasably to the end portion 10A of the spindle 10. In FIG. 1, the coupling element 40 is shown in a state coupled to the spindle 10. Furthermore, the internal thread 41 is provided for coupling to further components, for example to a striking device which is described in more detail in the following.

(24) Alternatively, it can also be provided that the coupling element 40 is formed integrally with the end portion 10A of the spindle 10, in particular it is connected thereto in a non-releasable manner. Here, the coupling element 40 can also have the internal thread 41 which, in this case, is formed in a blind hole in the coupling element 40 and is used to couple further components to the spindle 10.

(25) As shown by way of example in FIG. 2, the tool set can have a selection of different coupling elements.

(26) The tool 1 can also have a striking device 50. As shown by way of example in FIG. 3, the striking device 50 can have an impact component 51 which can be coupled to the spindle 10, and a striking body 52 which is movable against an impact body 54 of the impact component 51.

(27) The impact body 54 can be formed in particular in the shape of a disc or plate, as shown schematically in FIG. 3. The impact body 54 can either be coupled directly to the spindle 10 or to the coupling element 40, or can be coupled by means of a guide piece 53.

(28) The guide piece 53 can be formed in particular as a bar-shaped or rail-shaped elongate body, as shown by way of example in FIG. 3. The guide piece can have a circular cross section. However, in particular a rectangular, triangular, elliptic or polygonal cross section can also be provided.

(29) The guide piece 53 can be coupled to the spindle 10 in particular by a first end portion 53A. For this purpose, it is possible to provide on the guide piece 53 an external thread 55 which is formed at least in the region of the end portion 53A of the guide piece 53. The external thread 55 can be screwed into the internal thread 41 of the coupling element 40. The impact component 51 can thus be coupled to the spindle 10 in particular by means of the coupling element 40.

(30) The impact body 54 can be arranged at a second end portion 53B, opposite the first end portion 53A, of the guide piece 53. The impact body 54 can be connected to the guide piece 53, for example it can be connected releasably thereto, for example by means of a thread (not shown), or it is connected to the guide piece 53, for example formed integrally therewith or welded thereto or the like.

(31) Furthermore, the striking device 50 can have a striking body 52. This can be movably guided in particular on the guide piece 53, as schematically shown in FIG. 3, and indicated by the arrow P.

(32) The striking body 52 can be formed in particular as a cylindrical component with an inner hole 56, through which the guide piece 53 can be guided, as shown schematically in FIG. 3.

(33) Of course, it is also possible to provide in the tool set a selection of different striking devices, for example with different guide pieces 53 and/or different striking bodies 52 and/or different impact pieces 54.

(34) In the following, a method for inserting or removing the component 2 into or from the component mount 3 is described by way of example based on FIG. 1 and with reference to the above-described tool.

(35) In the method, the first ramp-form, in particular conical outer circumferential surface 11a of the first sleeve body 11 is brought into contact with a first end region 5A of a wall 5, defining an inner hole 4, of the component 2. Furthermore, the second ramp-form, in particular conical outer circumferential surface 21a of the second sleeve body 21 is brought into contact with a second end region 5B, opposite the first end region 5A, of the wall 5 of the component 2. Accordingly, the component 2 is arranged axially between the first and the second sleeve body 11, 21, or they are arranged on opposite sides of the component 2, as shown by way of example in FIG. 1.

(36) As further shown in FIG. 1, the sleeve bodies 11, 21 partly extend axially into the hole 4 inside the component 2. As a result, the sleeve bodies 11, 21 are automatically centred with respect to the hole 4 inside the component 2 due to the rotational symmetry of the outer circumferential surfaces 11a, 21a relative to the respective sleeve centre axis L11, L21.

(37) The spindle 10 extends axially through the through-hole 12 in the first sleeve body 11, through the hole 4 inside the component 2 and also through the through-hole 22 in the second sleeve body 21.

(38) Furthermore, a force is applied axially to the first sleeve body 11 in the direction of the second sleeve body 21 by means of the first pressure body 31 and a force is applied axially to the second sleeve body 21 in the direction of the first sleeve body 11 by means of the second pressure body 32. For example, the pressure bodies 31, 32 can be screwed onto the spindle 10 from opposite sides, as a result of which the pressure bodies 31, 32 come into contact with the end faces 11b, 21b of the sleeve bodies 11, 21 and press them against the component 2 from opposite sides. As a result, the component 2 is clamped axially between the sleeve bodies 11, 21.

(39) When the component is clamped between the sleeve bodies, a force F is applied axially to the spindle 10 and as a result, the component 2 moves out of or into the bearing mount 3, as indicated schematically by arrow Q in FIG. 1.

(40) It can be provided that the force F is applied axially to the spindle 10 by a jolt-wise application of said force F as the result of a movement of the striking body 52 against the impact body 54 of the impact component 51 coupled to the spindle 10.

(41) Although the present invention has been explained above by way of example with reference to embodiments, it is not restricted thereto, but can be modified in many different ways. In particular, combinations of the above embodiments are also conceivable.

(42) Without further elaboration, it is believed that one skilled in the art can, using the preceding description, utilize the present invention to its fullest extent. The preceding preferred specific embodiments are, therefore, to be construed as merely illustrative, and not limitative of the remainder of the disclosure in any way whatsoever.

(43) In the foregoing and in the examples, all temperatures are set forth uncorrected in degrees Celsius and, all parts and percentages are by weight, unless otherwise indicated.

(44) The entire disclosures of all applications, patents and publications, cited herein and of corresponding German application No. 10 2016 213 811, filed Jul. 27, 2016, are incorporated by reference herein.

(45) The preceding examples can be repeated with similar success by substituting the generically or specifically described reactants and/or operating conditions of this invention for those used in the preceding examples.

(46) From the foregoing description, one skilled in the art can easily ascertain the essential characteristics of this invention and, without departing from the spirit and scope thereof, can make various changes and modifications of the invention to adapt it to various usages and conditions.