CN219379219U - Novel double-cutting hob - Google Patents
Novel double-cutting hob Download PDFInfo
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- CN219379219U CN219379219U CN202223608957.3U CN202223608957U CN219379219U CN 219379219 U CN219379219 U CN 219379219U CN 202223608957 U CN202223608957 U CN 202223608957U CN 219379219 U CN219379219 U CN 219379219U
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Abstract
The application relates to a novel double-cutting hob relates to the technical field of hob, and it includes solid fixed ring and tooth sword group, tooth sword group is equipped with a plurality of groups, and follows gu the orderly spiral of circumference of solid fixed ring distributes, tooth sword group includes first tooth sword and second tooth sword. The novel double-cutting hob provided by the application has the advantages that the faceted surface is relatively smaller during hob teeth, and the defect that the faceted surface of a gear is larger during hob teeth when a common hob is used is overcome.
Description
Technical Field
The application relates to the technical field of hob cutters, in particular to a novel double-cutting hob cutter.
Background
The double-cutting hob is mainly used for high-speed and high-efficiency processing of large-modulus gears in the mechanical industries of wind power, cement, metallurgy, building materials and the like.
Currently, most gear manufacturers use a common pre-grinding hob to process gears, wherein the common pre-grinding hob is an generating tool, and a transition curve is formed at the root of gear teeth during hob teeth.
When a gear with larger modulus and less teeth number is processed by a common pre-grinding hob, the problem that the edge surface is larger at the transition curve part of the gear tooth root part during hob teeth can be solved, and the conventional pre-grinding hob is limited by reasons such as cutter structure and the like and cannot overcome the objectivity.
Disclosure of Invention
In order to improve the defect that the tooth root edge surface is large during hobbing, the application provides a novel double-cutting hob.
The application provides a novel double-cutting hob adopts following technical scheme:
the utility model provides a novel double-cutting hob, includes solid fixed ring and tooth sword group, tooth sword group is equipped with a plurality of groups, and follows gu the orderly spiral of circumference of solid fixed ring distributes, tooth sword group includes first tooth sword and second tooth sword.
By adopting the technical scheme, the number of the circumferential teeth of the cutter teeth is increased, so that the number of the cutting teeth of the hob wheel is increased, the number of the cutting edges of the hob cutting edge on the enveloping tooth surface of the cut teeth is increased, the finish degree of a machined workpiece is improved, and the cutting efficiency is improved, so that the tooth root edge surface is relatively smaller during hobbing, and the problem that the tooth root edge surface is larger during hobbing of a common hob is solved.
Optionally, the tooth height of the first tooth edge is greater than the tooth height of the second tooth edge.
Through adopting above-mentioned technical scheme, first tooth sword can play the effect of excision a large amount of allowances, and the second tooth sword has increased the intensity of cutting tooth relatively, has improved cutting efficiency to a certain extent.
Optionally, a first chip flute is disposed between the first tooth edge and the second tooth edge in each tooth edge group.
Through adopting above-mentioned technical scheme, can carry out the chip removal through first chip flute when cutting.
Optionally, a second chip flute is arranged between the first tooth edge and the second tooth edge adjacent to the tooth edge group.
By adopting the technical scheme, the number of the chip flutes is increased, so that the chip removal efficiency is improved.
Optionally, the depth of the second chip flute is greater than the depth of the first chip flute.
By adopting the technical scheme, the chip removal efficiency during cutting is further improved.
Optionally, the opening angle of the first chip flute is smaller than the opening angle of the second chip flute.
By adopting the technical scheme, the chip removal efficiency during cutting is further improved.
Optionally, the tooth blade assembly further comprises a clamping assembly, and the fixing ring is detachably connected with the tooth blade assembly through the clamping assembly.
Through adopting above-mentioned technical scheme for tooth sword group can be followed and dismantle on the solid fixed ring, is convenient for change tooth sword group.
Optionally, the clamping assembly comprises a clamping ring, a fixing rod, a spring, a fixing sheet and a clamping block; the clamping ring is sleeved on the fixing ring in a spiral manner along the length direction of the fixing ring in a sliding manner, and the tooth edge group is fixed on the clamping ring along the spiral direction of the clamping ring; the snap ring is close to set up the constant head tank on the lateral wall of solid fixed ring one side, the dead lever is fixed to be set up in the constant head tank, the stationary blade with the dead lever is kept away from the one end fixed connection of constant head tank bottom, fixture block one end slide set up in the constant head tank, gu set up on the solid fixed ring with the constant head tank just is to the draw-in groove that sets up, the fixture block is kept away from one end slide of constant head tank wears to locate in the draw-in groove, be provided with the spout in the fixture block, the stationary blade slide set up in the spout, the fixture block is close to one side of dead lever has been seted up the locating hole, the dead lever wears to locate in the locating hole, the spring housing is established on the dead lever.
By adopting the technical scheme, the tooth blade group can be detachably connected with the fixed ring; specifically, the tooth edge group can be fixed on the snap ring through the arrangement of the snap ring, and the tooth edge group is sleeved on the fixed ring through the snap ring; through the arrangement of the positioning groove, the fixing rod can be fixedly arranged in the positioning groove; through the arrangement of the fixed rod, a fixed sheet can be arranged at one end of the fixed rod; through the arrangement of the clamping blocks, sliding grooves can be clamped in the clamping blocks; the fixing piece can be arranged in the chute in a sliding way through the arrangement of the chute; through the arrangement of the positioning holes, the fixing rods can be penetrated in the positioning holes, so that the fixing rods are in sliding connection with the clamping blocks; the clamping block can be given an acting force far away from the positioning groove through the arrangement of the spring; through seting up the draw-in groove on solid fixed ring for the clamping block is kept away from the one end of dead lever and can be clamped in the draw-in groove, wears to establish in the draw-in groove through clamping block one end, and the other end wears to establish in the constant head tank, thereby makes the snap ring can the joint on solid fixed ring, thereby makes tooth sword group can fix on solid fixed ring.
Optionally, a through groove with the length direction the same as that of the positioning groove and communicated with the clamping groove is formed in the inner wall of the fixing ring, and a pull rod is arranged in the through groove in a sliding mode.
Through adopting above-mentioned technical scheme, when snap ring and solid fixed ring joint, can press the draw-bar with the fixture block to the constant head tank in to can take out the snap ring from solid fixed ring, improve the convenience of the operation of dismantling tooth sword group.
Optionally, a limiting groove is formed in the fixing ring, and a limiting ring fixedly sleeved on the pull rod is arranged in the limiting groove in a sliding mode.
By adopting the technical scheme, the pull rod can be limited in the fixing ring, and the pull rod is prevented from falling off from the fixing ring.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through the arrangement of the fixed ring and the tooth edge group, the number of the circumferential teeth of the cutter teeth is increased, so that the number of the cutting teeth of the hob wheel is increased, the number of the cutting edges of the hob cutting edge on the enveloping tooth surface of the cut teeth is increased, the finish degree of a machined workpiece is improved, the cutting efficiency is improved, the tooth root edge surface is relatively smaller during hobbing, and the problem that the tooth root edge surface is larger during hobbing of a common hob is solved;
2. through the arrangement of the clamping assembly, the fixed ring can be detachably connected with the tooth blade group through the clamping assembly, so that the tooth blade group can be detached from the fixed ring, and the tooth blade group can be replaced conveniently;
3. through the setting of pull rod, when snap ring and solid fixed ring joint, can press the draw-bar with the fixture block pressing to the constant head tank in to can take out the snap ring from solid fixed ring, improve the convenience of dismantling the operation of tooth sword group.
Drawings
FIG. 1 is a schematic overall structure of a first embodiment of the present application;
FIG. 2 is a schematic overall structure of a second embodiment of the present application;
FIG. 3 is a schematic cross-sectional view of a second embodiment of the present application;
fig. 4 is an enlarged partial schematic view of the portion a in fig. 3.
Reference numerals illustrate: 1. a fixing ring; 11. a clamping groove; 12. a through groove; 13. a limit groove; 2. a tooth blade group; 21. a first tooth edge; 22. a second tooth edge; 23. a first chip pocket; 24. a second chip pocket; 3. a clamping assembly; 31. a clasp; 311. a positioning groove; 32. a fixed rod; 33. a spring; 34. a fixing piece; 35. a clamping block; 351. positioning holes; 352. a chute; 4. a pull rod; 41. and a limiting ring.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-4.
The embodiment of the application discloses a novel double-cutting hob.
Embodiment one:
referring to fig. 1, a novel double-cutting hob comprises a fixed ring 1 and a tooth edge set 2; the tooth edge group 2 is provided with a plurality of groups, and the tooth edge group 2 of a plurality of groups is spiral and fixedly sleeved on the fixed ring 1, the tooth edge group 2 and the fixed ring 1 are coaxially arranged, and the tooth edge group 2 is uniformly distributed along the spiral line direction.
Referring to fig. 1, along the circumferential direction of the fixing ring 1, the tooth edge groups 2 are provided with at least ten groups on one circumference, each group of tooth edge groups 2 includes a first tooth edge 21 and a second tooth edge 22, one ends of the first tooth edge 21 and the second tooth edge 22, which are far away from the snap ring 31, are all inclined toward one side, the tooth height of the first tooth edge 21 is greater than the tooth height of the second tooth edge 22, and the effective tooth height of the second tooth edge 22 is one third of the effective tooth height of the first tooth edge 21.
Referring to fig. 1, in each set of tooth edge groups 2, first chip grooves 23 are provided between the first tooth edge 21 and the second tooth edge 22, the number of the first chip grooves 23 in the circumferential direction of the fixing ring 1 is at least ten, the openings of the first chip grooves 23 are also inclined, and the inclination direction is the same as the inclination direction of the first tooth edge 21 and the second tooth edge 22.
Referring to fig. 1, a second chip flute 24 is provided between the first tooth edge 21 and the second tooth edge 22 of the adjacent tooth edge group 2, the number of the second chip flutes 24 in the circumferential direction of the fixing ring 1 is at least ten, the depth of the second chip flute 24 is greater than that of the first chip flute 23, the depth of the second chip flute 24 is three times that of the second chip flute 24, and the length opening angle of the second chip flute 24 is smaller than the opening angle of the first chip flute 23.
The implementation principle of the first embodiment of the application is as follows: during cutting, the fixed ring 1 rotates towards the direction same as the inclination direction of the first tooth edge 21 and the second tooth edge 22, drives the first tooth edge 21 and the second tooth edge 22 to rotate to cut a workpiece, and chips are removed through the first chip flute 23 and the second chip flute 24.
Embodiment two:
referring to fig. 2, the difference between the present embodiment and the first embodiment is that a novel double-cutting hob further includes a clamping assembly 3, and the tooth blade set 2 and the fixing ring 1 are detachably connected through the clamping assembly 3.
Referring to fig. 3 and 4, the clip assembly 3 includes a snap ring 31, a fixing rod 32, a spring 33, a fixing piece 34, and a clip 35.
Referring to fig. 3 and 4, the snap ring 31 is spirally sleeved on the fixed ring 1 along the length direction of the fixed ring 1, the tooth edge groups 2 are fixedly connected with one side of the snap ring 31 away from the fixed ring 1, and the tooth edge groups 2 of a plurality of groups are uniformly distributed along the spiral line direction of the snap ring 31.
Referring to fig. 3 and 4, a positioning groove 311 is formed in the inner wall of the snap ring 31 on one side close to the fixed ring 1, and the depth direction of the positioning groove 311 is the same as the radial direction of the fixed ring 1; the fixed rod 32 is arranged in the positioning groove 311, the length direction of the fixed rod 32 is the same as the depth direction of the positioning groove 311, and one end of the fixed rod 32, which is close to the bottom of the positioning groove 311, is fixedly connected with the bottom of the positioning groove 311; the plane of the fixing piece 34 is perpendicular to the length direction of the fixing rod 32, and the fixing piece 34 is fixedly connected with one end of the fixing rod 32 far away from the bottom of the positioning groove 311, and the size of the fixing piece 34 is larger than the size of the section of the fixing rod 32.
Referring to fig. 3 and 4, the length direction of the clamping block 35 is the same as the length direction of the fixing rod 32 and is slidably connected with the fixing rod 32, one end of the clamping block 35 is slidably arranged in the locating groove 311 along the depth direction of the locating groove 311, a locating hole 351 is formed in one side, close to the fixing rod 32, of the clamping block 35, the size of the locating hole 351 is matched with the size of the fixing rod 32, and one end, far away from the bottom of the locating groove 311, of the fixing rod 32 is slidably arranged in the locating hole 351 along the length direction of the fixing rod 32.
Referring to fig. 3 and 4, a sliding groove 352 having the same length direction as the length direction and communicating with the positioning hole 351 is formed in the clamping block 35, the size of the sliding groove 352 is matched with the size of the fixing piece 34, and the fixing piece 34 is slidably disposed in the sliding groove 352 along the length direction of the sliding groove 352; the spring 33 is sleeved on the fixed rod 32 and is coaxially arranged with the fixed rod 32, one end of the spring 33 is fixedly connected with the bottom of the positioning groove 311, the other end of the spring 33 is fixedly connected with the clamping block 35, and when the fixing piece 34 abuts against the inner wall of the sliding groove 352 near one side of the fixed rod 32 in the sliding groove 352, the spring 33 is in a balanced state.
Referring to fig. 3 and 4, a clamping groove 11 opposite to the positioning groove 311 is formed in the outer wall of the fixing ring 1, the depth direction of the clamping groove 11 is the same as the length direction of the clamping block 35, the size of the clamping block 35 is also matched with that of the clamping block 35, and one end, away from the fixing rod 32, of the clamping block 35 can slide along the depth direction of the clamping groove 11 to penetrate through the clamping groove 11.
Referring to fig. 3 and 4, a through groove 12 is formed on the inner wall of the fixed ring 1, the through groove 12 is arranged opposite to the clamping groove 11, the depth direction of the through groove 12 is the same as the depth direction of the clamping groove 11, the cross section size of the through groove 12 is smaller than that of the clamping groove 11, one end, close to the clamping groove 11, of the through groove 12 is communicated with the clamping groove 11, and a pull rod 4 with the length direction the same as the depth direction of the pull rod is slidingly arranged in the through groove 12 along the depth direction; the fixed ring 1 is also internally provided with a limiting groove 13 which is communicated with the through groove 12 and is coaxial with the through groove 12, the limiting groove 13 is annular, the length direction of the limiting groove 13 is the same as the depth direction of the through groove 12, and the limiting groove 13 is internally provided with a limiting ring 41 which is fixedly sleeved on the pull rod 4 in a sliding manner along the length direction of the limiting groove 13.
The implementation principle of the second embodiment of the application is as follows: during installation, the clamping block 35 is pressed towards the bottom of the positioning groove 311, the spring 33 is in a compressed state, when the clamping block 35 is pressed into the positioning groove 311, the clamping ring 31 can be sleeved on the fixed ring 1, then the clamping ring 31 is rotationally moved until the clamping block 35 is aligned with the clamping groove 11, and the clamping block 35 penetrates into the clamping groove 11 under the action of the spring 33, so that the installation is completed; when the pull rod is dismounted, the pull rod 4 is pressed towards the direction of the positioning groove 311, at the moment, the pull rod 4 is abutted with one end of the clamping block 35 away from the positioning groove 311, the pull rod 4 drives the clamping block 35 to move towards the direction close to the positioning groove 311, and when the clamping block 35 is separated from the clamping groove 11 and enters the positioning groove 311, the clamping ring 31 can slide on the fixed ring 1, so that the clamping ring 31 can be taken down.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (8)
1. The novel double-cutting hob is characterized by comprising a fixed ring (1), a tooth blade group (2) and a clamping assembly (3), wherein the tooth blade group (2) is provided with a plurality of groups and is distributed in an orderly spiral manner along the circumference of the fixed ring (1), the tooth blade group (2) comprises a first tooth blade (21) and a second tooth blade (22), and the fixed ring (1) and the tooth blade group (2) are detachably connected through the clamping assembly (3); the clamping assembly (3) comprises a clamping ring (31), a fixing rod (32), a spring (33), a fixing piece (34) and a clamping block (35); the clamping ring (31) is sleeved on the fixing ring (1) in a spiral manner along the length direction of the fixing ring (1), and the tooth edge group (2) is fixed on the clamping ring (31) along the spiral direction of the clamping ring (31); the clamping ring (31) is close to a positioning groove (311) is formed in the side wall of one side of the fixing ring (1), the fixing rod (32) is fixedly arranged in the positioning groove (311), the fixing piece (34) is far away from one end fixed connection at the bottom of the positioning groove (311) with the fixing rod (32), one end of the fixing piece (35) is slidably arranged in the positioning groove (311), the clamping groove (11) which is just right arranged with the positioning groove (311) is formed in the fixing ring (1), one end of the fixing piece (35) far away from the positioning groove (311) is slidably arranged in the clamping groove (11), a sliding groove (352) is arranged in the fixing piece (35), one side of the fixing rod (32) is close to the fixing piece (34) and provided with a positioning hole (351), the fixing rod (32) is arranged in a penetrating mode in the positioning hole (351), and the spring (33) is sleeved on the fixing rod (32).
2. A new double-cutting hob according to claim 1, characterized in, that the tooth height of the first tooth edge (21) is larger than the tooth height of the second tooth edge (22).
3. A new double-cutting hob according to claim 1, characterized in, that in each set of tooth edge sets (2) a first chip flute (23) is provided between the first tooth edge (21) and the second tooth edge (22).
4. A new double-cutting hob according to claim 3, characterized in, that between the first tooth edge (21) and the second tooth edge (22) of the adjacent tooth edge set (2) a second chip flute (24) is provided.
5. A new double-cutting hob according to claim 4, characterized in, that the depth of the second chip flute (24) is greater than the depth of the first chip flute (23).
6. A new double-cutting hob according to claim 5, characterized in, that the opening angle of the first chip flute (23) is smaller than the opening angle of the second chip flute (24).
7. The novel double-cutting hob according to claim 6, wherein a through groove (12) with the same length direction as the length direction of the positioning groove (311) and communicated with the clamping groove (11) is formed in the inner wall of the fixed ring (1), and the pull rod (4) is arranged in the through groove (12) in a sliding mode.
8. The novel double-cutting hob according to claim 7, wherein a limiting groove (13) is formed in the fixing ring (1), and a limiting ring (41) fixedly sleeved on the pull rod (4) is arranged in the limiting groove (13) in a sliding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223608957.3U CN219379219U (en) | 2022-12-30 | 2022-12-30 | Novel double-cutting hob |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223608957.3U CN219379219U (en) | 2022-12-30 | 2022-12-30 | Novel double-cutting hob |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219379219U true CN219379219U (en) | 2023-07-21 |
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ID=87164388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223608957.3U Active CN219379219U (en) | 2022-12-30 | 2022-12-30 | Novel double-cutting hob |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219379219U (en) |
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2022
- 2022-12-30 CN CN202223608957.3U patent/CN219379219U/en active Active
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