CN219254368U

CN219254368U - Gear hobbing cutter for processing cylindrical gear

Info

Publication number: CN219254368U
Application number: CN202222201707.1U
Authority: CN
Inventors: 周珈羽
Original assignee: Qingdao Jingyi Forginggear Co ltd
Current assignee: Qingdao Jingyi Forginggear Co ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2023-06-27
Anticipated expiration: 2032-08-22

Abstract

The utility model discloses a gear hobbing cutter for processing a cylindrical gear, which comprises a shaft sleeve, wherein the middle part of the shaft sleeve is provided with a shaft hole for penetrating a rotating shaft of a gear hobbing machine, and the outer side wall of the shaft sleeve is provided with a plurality of mounting grooves along the direction of the shaft hole. According to the utility model, the shaft sleeve is arranged, the surface of the shaft sleeve is provided with the plurality of mounting grooves at equal intervals along the axial direction, the toothed plate is arranged in the plurality of mounting grooves, the surface of the toothed plate is provided with the plurality of hobbing, the plurality of hobbing and the toothed plate are of an integrated structure, the two ends of the toothed plate are fixed in the mounting grooves through the first inner hexagon bolts, the two ends of the surface of the shaft sleeve are also sleeved with the hoops, and the hoops are fixed at the two ends of the shaft sleeve through the second inner hexagon bolts, so that the shaft sleeve can further fix the toothed plates in the plurality of mounting grooves, each toothed plate of the hobbing cutter can be independently processed, and therefore, in the use process, if the hobbing on one toothed plate is damaged, the toothed plate can be independently replaced without replacing the whole hobbing cutter, thereby saving materials.

Description

Gear hobbing cutter for processing cylindrical gear

Technical Field

The utility model relates to the technical field of gear machining tools, in particular to a hobbing cutter for machining a cylindrical gear.

Background

The cylindrical gear is an important gear type in mechanical gears, and is the most common gear pattern, most of the production of the cylindrical gears is currently processed through a gear hobbing cutter, the gear hobbing cutter is used as a cutter for processing gears, the gear hobbing cutter can cut the cylindrical gear on a gear hobbing machine, worm gears, chain wheels and the like can also be processed, and the gear hobbing machine is widely applied to gear processing machine tools.

The hobbing cutter in the prior art is integrally formed and is machined through a lathe, when the hobbing cutter is used for machining a cylindrical gear, the hobbing on the surface of the hobbing cutter is worn or broken, the whole hobbing cutter is scrapped at the moment, the whole hobbing cutter needs to be replaced, the waste of materials is caused, and the cost for replacing the whole hobbing cutter is high, so that the hobbing cutter for machining the cylindrical gear is provided.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a hobbing cutter for processing a cylindrical gear.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a gear hobbing cutter is used in cylinder gear processing, includes the axle sleeve, the axle hole that is used for wearing to establish gear hobbing machine pivot has been seted up at the axle sleeve middle part, a plurality of mounting grooves have been seted up along the axle hole direction to the axle sleeve lateral wall, and is a plurality of the mounting groove is the equidistance and arranges, and is a plurality of the pinion rack is all installed to the mounting groove inside, the pinion rack surface is equipped with a plurality of hobbing, first mounting hole has all been seted up at pinion rack both ends, the sleeve both ends surface has all been overlapped the cuff, a plurality of second mounting holes that are used for installing the cuff have all been seted up at axle sleeve lateral wall both ends.

Further, the key groove is formed in the inner side wall of the shaft hole, the key groove is matched with the spline on the rotating shaft of the gear hobbing machine, and the torque of the rotating shaft of the gear hobbing machine can be stably transmitted through the engagement of the spline on the rotating shaft of the gear hobbing machine and the key groove on the inner wall of the shaft hole.

Furthermore, a plurality of gear hobbing is equidistant on the pinion rack surface and arranges, and a plurality of gear hobbing and pinion rack structure as an organic whole, and every pinion rack can be processed alone with the gear hobbing on its surface, compares the whole gear hobbing sword of processing, has also reduced the processing degree of difficulty.

Further, a plurality of the mounting groove both ends have all been seted up first screw hole, be connected with first hexagon socket head cap screw in the first mounting hole of first screw hole and corresponding side jointly, can fix the pinion rack in the mounting groove through first hexagon socket head cap screw.

Further, counter bores are formed in the surfaces of the two ends of the shaft sleeve and close to the first threaded holes, nuts of the first inner hexagon bolts are located inside the counter bores, and after the nuts of the first inner hexagon bolts sink into the counter bores, the two ends of the shaft sleeve cannot be protruded, and the shaft sleeve is convenient to install on a rotating shaft of a gear hobbing machine.

Further, a plurality of second threaded holes corresponding to the second mounting holes are formed in the surface of the ferrule, the second threaded holes and the interiors of the corresponding second mounting holes are connected with second inner hexagon bolts together, and the ferrule can be fixed on the surface of the shaft sleeve through the second inner hexagon bolts.

Furthermore, the surfaces of the two ends of the toothed plate are attached to the inner walls of the hoops at the two ends of the shaft sleeve, and the toothed plate can be further fixed in the mounting groove by using the hoops.

The utility model has the beneficial effects that:

when the gear hobbing cutter is used, the shaft sleeve is arranged, the surface of the shaft sleeve is provided with the plurality of mounting grooves at equal intervals along the axial direction, the toothed plate is arranged in the plurality of mounting grooves, the surface of the toothed plate is provided with the plurality of hobbing, the plurality of hobbing and the toothed plate are of an integrated structure, two ends of the toothed plate are fixed in the mounting grooves through the first inner hexagon bolts, the two ends of the surface of the shaft sleeve are also sleeved with the hoops, and the hoops are fixed at the two ends of the shaft sleeve through the second inner hexagon bolts, so that the shaft sleeve can further fix the toothed plates in the plurality of mounting grooves, each toothed plate of the gear hobbing cutter can be independently processed, and therefore, in the use process, if the hobbing on one toothed plate is damaged, the toothed plate can be independently replaced without replacing the whole gear hobbing cutter, thereby saving materials.

Drawings

FIG. 1 is a cross-sectional view of the present utility model;

FIG. 2 is a side view of the present utility model;

FIG. 3 is a partial perspective view of the present utility model;

fig. 4 is an enlarged view at a of the present utility model.

Legend description:

1. a shaft sleeve; 2. a shaft hole; 3. a key slot; 4. a mounting groove; 5. a toothed plate; 6. hobbing; 7. a first mounting hole; 8. a first threaded hole; 9. a first socket head cap screw; 10. countersink; 11. a ferrule; 12. a second mounting hole; 13. a second threaded hole; 14. and a second socket head cap screw.

Detailed Description

As shown in fig. 1-4, relate to a gear hobbing cutter for processing cylindrical gears, including axle sleeve 1, axle sleeve 1 middle part has been seted up and has been used for wearing to establish the shaft hole 2 of gear hobbing machine pivot, axle sleeve 1 lateral wall has been seted up a plurality of mounting grooves 4 along axle hole 2 direction, a plurality of mounting grooves 4 are the equidistance and arrange, tooth plate 5 is all installed to a plurality of mounting grooves 4 inside, tooth plate 5 surface is equipped with a plurality of gear hobbing 6, first mounting hole 7 has all been seted up at tooth plate 5 both ends, axle sleeve 1 both ends surface has all been overlapped the cuff 11, a plurality of second mounting holes 12 that are used for installing cuff 11 have all been seted up at axle sleeve 1 lateral wall both ends.

The keyway 3 has been seted up to shaft hole 2 inside wall, and keyway 3 matches with the epaxial spline of gear hobbing machine pivot, and behind keyway 3 and the epaxial spline block of gear hobbing machine, can stable transmission moment of torsion.

The plurality of hobbing 6 are arranged on the surface of the toothed plate 5 at equal intervals, and the plurality of hobbing 6 and the toothed plate 5 are of an integrated structure. First threaded holes 8 are formed in two ends of the mounting grooves 4, and first hexagon socket bolts 9 are connected in the first threaded holes 8 and the first mounting holes 7 on the corresponding sides. Counter bores 10 are formed in the two end surfaces of the shaft sleeve 1 and close to the first threaded holes 8, nuts of the first inner hexagon bolts 9 are located inside the counter bores 10, the toothed plates 5 can be fixed in the mounting grooves 4 through the first inner hexagon bolts 9, and after the hobbing 6 on the surface of one toothed plate 5 is damaged, the toothed plate 5 can be replaced independently.

The surface of the ferrule 11 is provided with a plurality of second threaded holes 13 corresponding to the second mounting holes 12, and the second threaded holes 13 and the interiors of the corresponding second mounting holes 12 are commonly connected with second hexagon socket bolts 14. The surfaces of the two ends of the toothed plate 5 are attached to the inner walls of the hoops 11 at the two ends of the shaft sleeve 1, and the hoops 11 can be fixed on the surface of the shaft sleeve 1 through the second hexagon socket head cap bolts 14, so that the hoops 11 can further fix the toothed plate 5.

When in use, the utility model is characterized in that: the shaft sleeve 1 is sleeved on the surface of the rotating shaft of the gear hobbing machine through the shaft hole 2 in the middle, the installation mode of the shaft sleeve is the same as that of the prior art, and the shaft sleeve can be used after the installation is completed. If the hobbing 6 on the surface of a certain toothed plate 5 is damaged in the use process, the second hexagon socket head cap bolts 14 on the ferrules 11 at the two ends of the shaft sleeve 1 can be screwed off firstly, then the two ferrules 11 are taken off from the shaft sleeve 1, then the first hexagon socket head cap bolts 9 at the two ends of the toothed plate 5 are screwed off, the toothed plate 5 and the hobbing 6 are detached together, then the toothed plate 5 is replaced, the toothed plate 5 is placed into the mounting groove 4, and then the first hexagon socket head cap bolts 9 are used for fixing.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a gear hobbing cutter for cylindrical gear processing which characterized in that: including axle sleeve (1), axle sleeve (1) middle part has been seted up and has been used for wearing to establish shaft hole (2) of gear hobbing machine pivot, a plurality of mounting grooves (4) have been seted up along shaft hole (2) direction to axle sleeve (1) lateral wall, and is a plurality of mounting groove (4) are the equidistance and arrange, a plurality of pinion rack (5) are all installed to mounting groove (4) inside, pinion rack (5) surface is equipped with a plurality of hobbing (6), first mounting hole (7) have all been seted up at pinion rack (5) both ends, axle sleeve (1) both ends surface has all been overlapped cuff (11), a plurality of second mounting holes (12) that are used for installing cuff (11) have all been seted up at axle sleeve (1) lateral wall both ends.

2. The hob for machining a cylindrical gear according to claim 1, wherein: the inner side wall of the shaft hole (2) is provided with a key groove (3), and the key groove (3) is matched with a spline on the rotating shaft of the gear hobbing machine.

3. The hob for machining a cylindrical gear according to claim 1, wherein: the plurality of hobbing gears (6) are arranged on the surface of the toothed plate (5) at equal intervals, and the plurality of hobbing gears (6) and the toothed plate (5) are of an integrated structure.

4. The hob for machining a cylindrical gear according to claim 1, wherein: a plurality of the mounting grooves (4) are provided with first threaded holes (8) at two ends, and first hexagon socket bolts (9) are connected in the first threaded holes (8) and the first mounting holes (7) at the corresponding sides.

5. The hob for machining a cylindrical gear according to claim 4, wherein: counter bores (10) are formed in the surfaces of the two ends of the shaft sleeve (1) and close to the first threaded holes (8), and nuts of the first inner hexagon bolts (9) are located inside the counter bores (10).

6. The hob for machining a cylindrical gear according to claim 1, wherein: a plurality of second threaded holes (13) corresponding to the second mounting holes (12) are formed in the surface of the hoop (11), and second hexagon socket bolts (14) are connected inside the second threaded holes (13) and the corresponding second mounting holes (12) together.

7. The hob for machining a cylindrical gear according to claim 6, wherein: the surfaces of the two ends of the toothed plate (5) are attached to the inner walls of the hoops (11) at the two ends of the shaft sleeve (1).