Tool, template, cassette, and method for grooving a roller

Abstract

The tool according to the invention comprises a tool body and a cassette for machining a roller. At least one machining device can be fastened, in particular detachably, onto and/or in the cassette. In particular, the machining device is a cutting device, preferably for grooving a roller. The tool has a positioning device for orienting the cassette in the tool body at a predetermined position.

Claims

1. A tool for machining of a workpiece, wherein the tool comprises a tool body and a cassette, at least one machining device is fastenable to and/or in the cassette, the tool has a positioning device for orienting the cassette in a predetermined position in the tool body, the positioning device comprises a gap arranged on the tool body, and a protrusion, for engaging in the gap, is arranged on a template, and the template has a template opening for receiving the cassette.

2. The tool according to claim 1, wherein an external shape of the cassette is substantially complementary at least sectionally to a shape of the template opening.

3. The tool as claimed claim 1, wherein the tool body comprises a cassette fastening means for securely mounting the cassette in the tool body, wherein the cassette fastening means is arranged on and/or in the tool body.

4. The tool as claimed in claim 3, wherein the cassette fastening means is arranged on and/or in the tool body by a friction fit.

5. The tool as claimed in claim 1, wherein the cassette has a handle.

6. A tool for machining of a workpiece, wherein the tool comprises a tool body and a cassette, at least one machining device is fastenable to and/or in the cassette, the tool has a positioning device for orienting the cassette in a predetermined position in the tool body, the positioning device comprises a gap arranged on the tool body, a protrusion for engaging in the gap is arranged on the cassette, and a fastening device for fastening the protrusion in the gap is arranged on and/or in the gap.

7. The tool as claimed claim 6, wherein the tool body comprises a cassette fastening means for securely mounting the cassette in the tool body, wherein the cassette fastening means is arranged on and/or in the tool body.

8. The tool as claimed in claim 7, wherein the cassette fastening means is arranged on and/or in the tool body by a friction fit.

9. The tool as claimed in claim 6, wherein the cassette has a handle.

10. A tool for machining of a workpiece, wherein the tool comprises a tool body and a cassette, at least one machining device is fastenable to and/or in the cassette, the tool has a positioning device for orienting the cassette in a predetermined position in the tool body, the machining device comprises at least two cutting devices arranged in a row such that, with respect to a machining direction, the cutting devices machine substantially the same regions of the workpiece one after the other, and the at least two cutting devices include a first cutting device facing in the machining direction located at a first spacing from the tool body smaller than a second spacing of a second cutting device facing in an opposite direction to the machining direction, with respect to a longitudinal axis of the tool.

11. A tool for machining of a workpiece, wherein the tool comprises a tool body and a cassette, at least one machining device is fastenable to and/or in the cassette, the tool has a positioning device for orienting the cassette in a predetermined position in the tool body, and the machining device comprises at least two cutting devices that are arranged substantially parallel to one another.

12. The tool as claimed in claim 11, wherein a first cutting device is arranged for a first machining direction and a second cutting device is arranged for a machining in a second direction substantially opposite to the first machining direction.

13. A set comprising: a cassette for a tool for machining of a workpiece, wherein the tool comprises a tool body and the cassette comprises at least one machining device, the machining device is receivable on and/or in the cassette; a protrusion for engaging in a gap in the tool body is arrangeable or arranged on the cassette; a template for the tool, wherein the template comprises a protrusion for engaging in the gap in the tool body, and the template has a template opening for receiving the cassette.

14. The set as claimed in claim 13, wherein an external shape of the cassette is substantially complementary at least sectionally to a shape of the template opening.

15. The set as claimed in claim 13, wherein the machining device is a cutting device.

16. The set as claimed in claim 13, wherein the machining device is releasably receivable on and/or in the cassette.

17. A method for fluting a roller by way of a tool, wherein the tool comprises a tool body and/or a cassette for receiving two pairs of at least two cutting devices, arranged substantially parallel to one another and in a row, a first pair of cutting devices is arranged for a first machining direction and a second pair of cutting devices is arranged for a second machining direction substantially opposite to the first machining direction, the method comprising the steps of: positioning the first pair on the roller; rotating the roller about the roller axis in a first direction of rotation and, at substantially the same time, moving the tool along the roller axis in the first machining direction in order to produce a flute in the roller; positioning the second pair on and/or in the flute; rotating the roller about the roller axis in a second direction of rotation and, at substantially the same time, moving the tool along the roller axis in the second machining direction along the flute.

18. The method as claimed in claim 17, wherein the method is performed by way of a tool for machining of a workpiece, wherein the tool comprises a tool body and a cassette, and at least one machining device is fastenable to and/or in the cassette, and the tool has a positioning device for orienting the cassette in a predetermined position in the tool body.

19. The method as claimed in claim 17, wherein rotating the roller about the roller axis in the first direction of rotation is performed through an angular section and rotating the roller about the roller axis in the second direction of rotation is performed through a negative angular section.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Further features and advantages of the invention are explained in more detail in the following text for better understanding with reference to exemplary embodiments, without the invention being restricted to the exemplary embodiments. In the drawings:

(2) FIG. 1 shows a perspective illustration of a tool according to the invention having a cassette and cutting devices;

(3) FIG. 2 shows a perspective illustration of a cassette according to the invention, as is received in the tool according to FIG. 1;

(4) FIG. 3 shows a plan view of a template according to the invention for orienting the cassette according to FIG. 2;

(5) FIG. 4 shows a perspective illustration of a tool body according to the invention, as illustrated in FIG. 1;

(6) FIG. 5 shows a perspective illustration of the cassette according to the invention according to FIG. 2 without casing and base;

(7) FIG. 6 shows a perspective illustration of four cutting devices for the tool according to the invention according to FIG. 1;

(8) FIG. 7 shows a schematic illustration in a front view of an alternative tool according to the invention and of a roller for a first machining direction;

(9) FIG. 8 shows a schematic illustration of the front view according to FIG. 7 of the tool according to the invention and of the roller for a second machining direction;

(10) FIG. 9 snows a schematic illustration of a side view of a tool according to the invention with two cutting devices;

(11) FIG. 10 shows an enlarged schematic illustration of the tool according to the invention according to FIG. 9;

(12) FIG. 11 shows a perspective illustration of the casing of the cassette according to FIG. 2.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(13) FIG. 1 illustrates a perspective illustration of a tool 1 according to the invention. The tool 1 has a tool body 3 for receiving a cassette 4. The tool body 3 comprises a fastening device 9 for fastening a protrusion (not visible here) of the cassette 4 in order to orient the cassette 4 in the tool body 3.

(14) The tool body 3 comprises a cassette fastening means 17 for securely mounting the cassette 4 in the tool body 3. In addition, the tool body 3 has a tool holder 13 comprising a holding arm for receiving in a tool carrier which is operatively connected for example to a linear drive in order to position and machine a workpiece with the tool 1. The tool holder 13 is configured as the VDI type 50 known to a person skilled in the art.

(15) The cassette 4 comprises a handle 10 for easy handling of the cassette 4.

(16) The cassette 4 comprises, as machining device, four cutting devices 14, of which only three are visible here. Thus, a first pair 15 of cutting devices 14 and a second pair 16 of cutting devices 14 are arranged in the cassette 4. The first pair 15 is in this case arranged for a first machining direction substantially parallel to a longitudinal axis of the holding arm of the tool holder 13, and the second pair 16 is arranged for a machining direction in the opposite direction.

(17) FIG. 2 illustrates a perspective illustration of a cassette 4 according to FIG. 1.

(18) Identical reference signs denote identical features in all of the figures and are therefore only explained again as required.

(19) Arranged on the cassette 4 comprising the casing 19 is a template 7 having a protrusion 6, said template 7 being able to engage in a complementary cutout or a gap in order to orient the cassette in the tool body. The template 7 is connected releasably to the cassette 4.

(20) FIG. 3 illustrates a plan view of a template 7 having a protrusion 6 according to FIG. 2. The template 7 has a template opening 8 in which the cassette can engage. The external shape of the cassette is substantially complementary at least sectionally to the shape of the template opening 8, such that the cassette takes up a defined orientation in the template opening 3.

(21) FIG. 4 illustrates a perspective illustration of the tool body 3 according to FIG. 1.

(22) The tool body 3 has a gap 5 for the protrusion arranged on the cassette, such that the cassette takes up a predetermined orientation in the tool body 3. In order to receive a cassette, the tool body 3 has a cassette receptacle 18.

(23) Arranged at the gap 5 is a fastening device 9 which is configured here as two mutually opposite screws. In the engaged state of the protrusion in the gap 5, the screws are settable such that a force is exertable on opposite faces of the protrusion in order to fasten the protrusion in the gap 5, in particular by means of a friction fit.

(24) FIG. 5 illustrates the cassette 4 according to FIG. 2. In the present illustration, the casing and the base of the cassette 4 nave been omitted in order to reveal the arrangement of the cutting devices 14 in the cassette 4. The cassette 4 comprises a device 20, configured as screws, for fastening and orienting the casing, wherein only one of two screws is visible.

(25) FIG. 6 illustrates a perspective illustration of the four cutting devices 14 as are arranged in the cassette according to FIG. 2. In order to visualize this arrangement better, all of the further parts of the cassette have been removed in the present illustration.

(26) FIG. 7 shows a schematic illustration in a front view of an alternative tool 1 according to the invention, which is positioned on a roller 2.

(27) The tool 1 comprises a first pair 15 and a second pair 16 of cutting devices 14. The cutting devices 14 of the first pair are arranged in a row. The cutting devices 14 of the second pair 16 are likewise arranged in a row, wherein the first pair 15 and the second pair 16 are arranged substantially parallel to one another. The first pair 15 is arranged for a first machining direction and the second pair 16 is arranged for a machining direction substantially in the opposite direction to the first machining direction.

(28) The roller 2 is illustrated in the unmachined state. For machining, the roller 2 is rotated about the roller axis W in a first direction of rotation b. At the same time, the tool 1 is moved by means of a drive (not shown here) parallel to the direction of rotation mathematically defined along the sector b by the rotation of the roller 2, i.e. toward the observer from the plane of the drawing.

(29) FIG. 8 shows the arrangement of the tool and roller according to FIG. 7 after the first machining step and the positioning of the second pair 16 of cutting devices 14 in a flute 12. This flute 12 was produced in the roller 2 during the machining step illustrated in FIG. 7.

(30) For the further machining of the flute 12, the roller 2 is rotated in a second direction of rotation b through a negative angular section, which defines a direction of rotation in the mathematical sense into the plane of the drawing. Substantially at the same time, the tool 1 is moved parallel to the direction of rotation along the flute 12, for example in order to further deepen the flute 12.

(31) Subsequently, the process can be repeated as often as required until the appropriate geometry of the flute 12 has been achieved, or the roller 2 has fluting on the entire roller surface.

(32) FIG. 9 schematically shows a side view of a tool 1 according to the invention having two cutting devices 14. The cutting devices 14 are arranged in a row with, one another.

(33) The tool 1 is fastened to a linear drive 11 for moving the tool 1 in the machining direction s. The cutting devices 14 are configured such that only machining in the machining direction s and not in the opposite direction takes place.

(34) The roller 2 having the roller axis W has a roller length t of 1600 mm, which is the maximum roller length t.

(35) In order to machine the roller 2 with the tool 1, the tool 1 is positioned on the roller 2 and moved in the machining direction s by means of the linear drive 11. During the movement of the tool 1, the roller 2 is rotated about the roller axis W through an angular section.

(36) During the return movement counter to the machining direction s after the roller 2 has been machined, the roller 2 is optionally rotated through a negative angular section in order to machine the previously machined section of the roller 2 again.

(37) The cutting device 14 facing in the machining direction is at a smaller spacing from the tool body of the tool 1 than the cutting device 14 facing in the opposite direction to the machining direction s.

(38) FIG. 10 schematically illustrates the tool 1 according to FIG. 9 in an enlarged depiction. The tool 1 comprises the tool body 3 and the cassette 4, which comprises only two cutting devices arranged in a row. Along a longitudinal axis L of the tool 1, the cutting device 14 facing in the machining direction is at a first spacing a from the tool body and the cutting device facing in the opposite direction to the machining direction is at a second spacing c. The second spacing c is greater than the first spacing a. The difference between the second spacing c and the first spacing a is 0.1 mm, wherein the difference is illustrated in a greatly enlarged manner here.

(39) FIG. 11 illustrates the casing 19 of the cassette according to FIG. 2.

(40) Under normal conditions of use the casing 19 has on the side facing the handle, four openings 22 for receiving the four cutting devices. In addition, two orientation openings 21 for the engagement of the casing orientation device are provided.

(41) The casing 19 additionally has, on the side facing the handle, an orientation section 23 for orienting the cassette in the template. The external shape of the casing 19 in the region of the orientation section 23 is substantially complementary to the shape of the template opening.