Abstract
The invention relates to a milling cutter (1) comprising a substantially cylindrical tool body (2) and at least one peripheral cutting edge (3) protruding exclusively radially over the tool body (2), to which cutting edge a chip removal space (4) is assigned, wherein at least one section of the chip removal space (4), which is trough-shaped in particular, is provided behind the cutting edge (3), at least in the peripheral direction.
Claims
1-14. (canceled)
15. A milling cutter (1, 11) comprising a substantially cylindrical tool body (2, 12) and at least one peripheral cutting edge (3, 13) protruding exclusively radially over the tool body (2, 12), to which cutting edge a chip removal space (4, 14) is assigned, wherein at least one section (8, 18) of the chip removal space (4, 14), which is trough-shaped, is provided behind the cutting edge (3, 13), at least in the peripheral direction, wherein the chip removal space (4, 14) is open exclusively on a peripheral side and not on an end face.
16. The milling cutter according to claim 15, wherein the chip removal space (4, 14) is designed in such a way that chip material is forced to come loose from the tool body.
17. The milling cutter according to claim 15, wherein the chip removal space (4, 14) is disposed in such a way that one section (7, 17) is situated laterally with respect to the cutting edge (3, 13).
18. The milling cutter according to claim 15, wherein the chip removal space (4, 14) is disposed in such a way that one section (5, 15) is situated in front of the cutting edge (3, 13).
19. The milling cutter according to claim 15, wherein a chip-removal-space section (8, 18) disposed behind the cutting edge (3, 13) forms an acute angle with a cutting edge back (6, 16).
20. The milling cutter according to claim 15, wherein the chip removal space (4, 14) surrounds the cutting edge (3, 13) by more than 60%.
21. The milling cutter according to claim 15, wherein a chip channel is provided, which connects two chip removal spaces assigned to different cutting edges, wherein the chip channel extends in front of and/or behind a cutting edge.
22. The milling cutter according to claim 15, wherein the chip channel is designed in the shape of a helix.
23. The milling cutter according to claim 15, wherein the chip-removal-space section (8, 18) disposed behind the cutting edge (3, 13) is situated in such a way that at least one region is located under a plane (E2), the position of which is defined by the underside (20) of the cutting edge (3, 13).
24. The milling cutter according to claim 15, wherein a chip-removal-space section (8, 18) disposed behind the cutting edge (3, 13) is situated in such a way that at least one region is located above a plane (E2), the position of which is defined by the underside (20) of the cutting edge (3, 13).
25. The milling cutter according to claim 15, wherein the milling cutter is designed as a notching or profiling cutter.
26. The milling cutter according to claim 15, wherein the milling cutter has a receiving opening for accommodating a shaft or a tool holder.
27. The milling cutter according to claim 15, wherein the milling, cutter is designed as a shank-type tool.
Description
[0024] In the drawing:
[0025] FIG. 1 shows a first embodiment of a milling cutter;
[0026] FIG. 2 shows an enlarged cutout of the representation from FIG. 1;
[0027] FIG. 3 shows one alternative embodiment of a milling cutter;
[0028] FIG. 4 shows an enlarged cutout from FIG. 3;
[0029] FIG. 5 shows a partial sectional representation of a milling cutter in the region of a cutting edge;
[0030] FIG. 6 shows a third embodiment of a milling cutter comprising a chip channel; and
[0031] FIG. 7 shows a fourth embodiment of a milling cutter.
[0032] FIG. 1 shows a milling cutter 1 comprising a substantially cylindrical tool body 2 and a receiving opening for fastening on a machine tool. Cutting edges 3 are disposed on the machine body 2, which cutting edges protrude radially over the tool body 2. Assigned to the cutting edge 3 is a chip removal space 4 which is described in greater detail with reference to FIG. 2.
[0033] It is apparent in FIG. 2 that the chip removal space 4 includes a chip removal space 5 which is disposed in front of the cutting edge 3. In particular, the chip removal space 5 is disposed in front of a cutting edge back 6 in a plane E1 (see FIG. 5). A further section 7 of the chip removal space 4 is situated laterally with respect to the cutting edge 3. Abutting said further section is a section 8 which is disposed behind the cutting edge 3. The chip removal space 4 therefore partially surrounds the cutting edge 3. A chip that is generated by the cutting edge 3 travels via the chip-removal-space section 5 and the chip-removal-space section 7 to the chip-removal-space section 8 and, therefore, travels behind the cutting edge 3. As a result, twofold machining can be avoided.
[0034] The chip-removal-space section 8 is disposed at an acute angle with respect to the cutting edge back 6. The chip removal space 4 is open exclusively on the peripheral side, i.e., radially. In particular, said chip removal space is not disposed in the region of an end face of the milling cutter 1, nor is it open toward the end face. The chip removal space 4 is designed in the form of a trough.
[0035] It is also clear from FIG. 2 that the cutting edge 3 is disposed on a cutting edge support 9.
[0036] FIG. 3 shows an alternative embodiment of a milling cutter 11 which comprises a substantially cylindrical tool body 12. In particular, the milling cutter 11 is designed as a shank-type tool. A cutting edge 13, to which a chip removal space 14 is assigned, protrudes radially from the cylindrical tool body 12. This is described in greater detail with reference to the representation from FIG. 4.
[0037] It is apparent in FIG. 4 that the chip removal space 14 includes a chip-removal-space section 15 which is disposed in front of the cutting edge 13. In particular, the chip-removal-space section 15 is disposed in front of a cutting edge back 16. Adjoining the chip-removal-space section 15 is the section 17 of the chip removal space, which is situated laterally with respect to the cutting edge 13. This is adjoined by the section 18 which extends up to behind the cutting edge 13 and also behind the cutting edge back 16. The chip-removal-space section 18 is disposed at an acute angle with respect to the cutting edge back 16. The chip removal space 14 is designed in the shape of a trough in this case as well. A chip formed by the cutting edge 13 is carried away via the chip-removal-space sections 15, 17, 18 and is guided behind the cutting edge 13.
[0038] FIG. 5 shows a sectional representation through a milling cutter. FIG. 5 is described using the reference numbers according to FIG. 1. In this case, it is clear that the cutting edge 3 is disposed on the cutting edge support 9. The underside 20 of the cutting edge 3 defines a plane E2. The back side 21 of the cutting edge 3 defines a plane E1, and so a total of four quadrants Q1 to Q4 results. The chip-removal-space section 8 is disposed, via its preponderant region, below the plane E2. A small region is also disposed above the plane E2, however. The chip-removal-space section 8 is therefore disposed primarily in the quadrant Q4. Only a small region is disposed in the quadrant Q1. It is also conceivable that the chip-removal-space section 8, which is disposed behind the cutting edge 3, is disposed only in the quadrant Q1, i.e., above the plane E2, or only in the quadrant Q4, i.e., under the plane E2.
[0039] FIG. 6 shows one further embodiment of a milling cutter 21. The milling cutter 21 comprises a substantially cylindrical body 22, on which a first cutting edge 23.1 and a second cutting edge 23.2 are situated. The cutting edges 23.1 and 23.2 are designed as peripheral cutting edges and protrude radially over the tool body 22. Assigned to each of the cutting edges 23.1, 23.2 is a chip removal space 24.1, 24.2. The chip removal spaces 24.1, 24.2 open into a chip channel 25 which is designed in the shape of a helix and connects the chip removal spaces 24.1, 24.2. The chip channel 25, by way of its section 25.1, is the chip-removal-space section that is disposed behind the cutting edge 23.1, and by way of its section 25.2, is the chip-removal-space section that is disposed behind the cutting edge 23.2. By means of the chip channel 25, chipsfor example chips that are generated by the cutting edge 23.1are effectively kept away from a subsequent cutting edge, e.g., the cutting edge 23.2, since they are guided laterally past this cutting edge.
[0040] The milling cutter 31 represented in FIG. 7 is designed similarly to the milling cutter 21. It comprises a cylindrical body 32, on which radially protruding peripheral cutting edges 33 are disposed, which cutting edges are designed to be replaceable in this case. Said cutting edges are fastened on the body 32 by means of screws 36. A chip removal space 34, which opens into a helical chip channel 35, is disposed around each of the cutting edges 33. The channel 35 collects the chips from multiple chip removal spaces 34 and conveys them past the cutting edges 33 and out of the tool 31.
