CN220388149U - Primary driving gear hobbing tool - Google Patents

Abstract

The utility model discloses a primary driving gear hobbing tool. The primary driving tooth hobbing tool comprises a base, a mounting seat, a pressure head, a shaft sleeve, a fixing seat, an expansion sleeve, a taper sleeve and an adjusting piece, wherein the mounting seat is fixed on the base, a first avoiding section is arranged on the mounting seat, the taper sleeve is arranged in the expansion sleeve, the expansion sleeve is arranged on the base, the expansion sleeve is used for fixing two primary driving teeth, the adjusting piece is arranged on the mounting seat through the taper sleeve, the adjusting piece is used for adjusting the outer diameter of the expansion sleeve, the pressure head is fixed on the shaft sleeve, the shaft sleeve is rotatably arranged on the fixing seat, and a second avoiding section is arranged on the pressure head. The primary driving gear hobbing tool can process two primary driving gear hobbing tools at a time.

Description

Primary driving gear hobbing tool

Technical Field

The utility model relates to the technical field of gear hobbing tools, in particular to a primary driving gear hobbing tool.

Background

The primary driving teeth are important parts for power transmission, and when the primary driving teeth are machined, a gear hobbing machine is usually adopted for machining, and only one primary driving tooth can be machined at a time due to the limitation of a fixture for fixing the primary driving teeth, so that the efficiency is low.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a primary driving tooth hobbing tool for processing two primary driving teeth at a time.

In order to solve the problems, the utility model provides a primary driving tooth hobbing tool, which comprises a base, a mounting seat, a pressure head, a shaft sleeve, a fixed seat, an expansion sleeve, a taper sleeve and an adjusting piece, wherein the mounting seat is fixed on the base, the mounting seat is provided with a first avoiding section, the taper sleeve is arranged in the expansion sleeve, the expansion sleeve is arranged on the base, the expansion sleeve is used for fixing two primary driving teeth, the adjusting piece passes through the taper sleeve and is arranged on the mounting seat, the adjusting piece is used for adjusting the outer diameter of the expansion sleeve, the pressure head is fixed on the shaft sleeve, the shaft sleeve is rotatably arranged on the fixed seat, and the pressure head is provided with a second avoiding section.

Further, the front end of the first avoiding section is provided with a conical positioning part, and the expansion sleeve is sleeved on the conical positioning part.

Further, the adjusting piece is a screw, a screw hole is formed in the conical positioning portion, and the screw penetrates through the taper sleeve and is arranged in the screw hole.

Further, the second avoidance section is provided with an accommodating groove.

Further, the fixing seat comprises a shaft body, a bottom plate and fixing columns, wherein the shaft body is arranged on one side of the bottom plate, the fixing columns are arranged on the other side of the bottom plate, and the shaft sleeve is sleeved on the shaft body.

Further, a thrust bearing is arranged between the shaft sleeve and the bottom plate, and a pressing plate is arranged on the bottom plate and used for limiting the shaft sleeve.

Further, a first step surface and a second step surface are arranged on the bottom plate, the thrust bearing is arranged on the first step surface, and the pressing plate is arranged on the second step surface.

Further, the shaft body, the bottom plate and the fixing column are integrally formed.

Further, the base is provided with a mounting hole

The expansion sleeve of the primary driving tooth hobbing tool can fix two primary driving teeth, the mounting seat is provided with the first avoiding section and the pressure head is provided with the second avoiding section, and a processing space is provided for a hobbing mechanism, so that the two primary driving teeth can be processed at one time, and the processing efficiency is improved; meanwhile, the expansion sleeve is adopted for fixation, so that the gap between the inner hole of the primary driving tooth and the expansion sleeve can be eliminated, the fixation is more stable, the vibration is avoided, and the machining precision is higher.

Drawings

Fig. 1 is a schematic structural view of a primary driving gear hobbing tool according to a preferred embodiment of the present utility model.

Fig. 2 is a schematic structural view of the mounting base.

Fig. 3 is a schematic structural view of the fixing base.

The meaning of the reference numerals in the drawings are:

the device comprises a base 1, a mounting hole 11, a mounting seat 2, a first avoiding section 21, a conical positioning part 22, a screw hole 23, a pressure head 3, a second avoiding section 31, an accommodating groove 32, a shaft sleeve 4, a fixed seat 5, a shaft body 51, a bottom plate 52, a first step surface 521, a second step surface 522, a fixed column 53, a pressing plate 54, an expansion sleeve 61, a conical sleeve 62, an adjusting piece 7, a thrust bearing 8 and primary driving teeth 9.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1, a preferred embodiment of the primary driving gear hobbing tool of the present utility model comprises a base 1, a mounting seat 2, a pressing head 3, a shaft sleeve 4, a fixing seat 5, an expansion sleeve 61, a taper sleeve 62 and an adjusting piece 7. The mounting seat 2 is fixed on the base 1, the expansion sleeve 61 is arranged on the base 1, and the expansion sleeve 61 is used for fixing the two primary driving teeth 9. The taper sleeve 62 is arranged in the expansion sleeve 61, the adjusting piece 7 passes through the taper sleeve 62 and is arranged on the mounting seat 2, the adjusting piece 7 is used for adjusting the outer diameter of the expansion sleeve 61, the adjusting piece 7 moves towards the mounting seat 2 to enable the taper sleeve 62 to move towards the mounting seat 2, the taper sleeve 62 enables the expansion sleeve 61 to expand, namely the outer diameter of the expansion sleeve 61 is enlarged, and therefore the primary driving tooth 9 is fixed on the expansion sleeve 61. The pressure head 3 is fixed on the shaft sleeve 4, and the pressure head 3 is used for pressing the primary driving teeth 9. The shaft sleeve 4 is rotatably arranged on the fixed seat 5, so that the fixed seat 5 does not rotate under the condition that the shaft sleeve 4 rotates.

The base 1 is provided with the mounting holes 11, so that the base 1 is conveniently mounted on corresponding equipment or mechanisms through screws, and the disassembly is convenient.

As shown in fig. 2, the mounting seat 2 is provided with a first avoiding section 21, the first avoiding section 21 is columnar, and the diameter of the first avoiding section 21 is smaller than the outer diameter of the primary driving tooth 9, so that a right movable space can be provided for the gear hobbing mechanism. The front end of the first avoiding section 21 is provided with a conical positioning portion 22, the expansion sleeve 61 is sleeved on the conical positioning portion 22, so that the two ends of the expansion sleeve 61 expand or contract synchronously, the service life of the expansion sleeve 61 is prolonged, and generally the taper of the conical positioning portion 22 is consistent with that of the conical sleeve 62. The conical positioning part 22 is provided with a screw hole 23, the adjusting piece 7 is screwed in the screw hole 23, and the adjusting piece 7 can be rotated to move, so that the taper sleeve 62 is pushed to move towards the mounting seat 2 or away from the mounting seat 2; when the taper sleeve 62 moves towards the direction of the mounting seat 2, the expansion sleeve 61 expands to enlarge the outer diameter of the expansion sleeve 61, so that the primary driving teeth 9 are fixed on the expansion sleeve 61; when the cone sleeve 62 moves away from the mounting seat 2, the expansion sleeve 61 is contracted, namely the outer diameter of the expansion sleeve 61 is reduced, so that the expansion sleeve 61 is separated from the wall of the inner hole of the primary driving tooth 9, and the primary driving tooth 9 can be removed from the expansion sleeve 61.

With continued reference to fig. 1, the pressure head 3 is provided with a second avoiding section 31, the second avoiding section 31 is columnar, and the diameter of the second avoiding section 31 is smaller than the outer diameter of the primary driving tooth 9, so that a left movable space can be provided for the gear hobbing mechanism. The second avoidance section 31 is provided with an accommodating groove 32, and the accommodating groove 32 is used for accommodating the front end of the adjusting piece 7, so that the pressing head 3 can be abutted to the primary driving gear 9.

The adjusting piece 7 is a screw, the screw passes through the taper sleeve 62 and is arranged in the screw hole 23, and the cost can be reduced by adopting conventional parts.

As shown in fig. 3, the fixing base 5 includes a shaft body 51, a bottom plate 52 and a fixing post 53, where the shaft body 51, the bottom plate 52 and the fixing post 53 are integrally formed, and are convenient for processing and manufacturing. The shaft body 51 is disposed on one side of the bottom plate 52, and the fixing column 53 is disposed on the other side of the bottom plate 52. The shaft sleeve 4 is sleeved on the shaft body 51, and a thrust bearing 8 is arranged between the shaft sleeve 4 and the bottom plate 52, so that the shaft sleeve 4 can rotate relative to the fixed seat 5. The bottom plate 52 is provided with a pressing plate 54, a certain gap is formed between the left side wall of the inner side of the pressing plate 54 and the right side wall of the pressing plate 54, and the gap can accommodate the thickness of the front end of the shaft sleeve 4, so that the pressing plate 54 positions the shaft sleeve 4 to prevent the shaft sleeve 4 from being separated from the pressing plate 54. The shaft sleeve 4 is rotatably arranged on the fixed seat 5, so that the fixed seat 5 can be installed without rotation, the requirements on external equipment and mechanisms can be reduced, more choices are available when the external equipment or mechanisms for installing the fixed seat 5 are selected, and the fixed seat 5 can be installed on a similar fixed column 53.

The bottom plate 52 is provided with a first step surface 521 and a second step surface 522; the thrust bearing 8 is arranged on the first step surface 521, and can be combined with the shaft body 51 to limit the thrust bearing 8 in the radial direction, so that the thrust bearing 8 cannot move in the radial direction; the platen 54 is provided on the second step surface 522, and can be combined with the first step surface 521 to define the platen 54 in the radial direction, thereby ensuring that the platen 54 does not move in the radial direction.

When the gear hobbing machine is used, the two primary driving teeth 9 are sleeved on the expansion sleeve 61, then the adjusting piece 7 is rotated, the expansion sleeve 61 fixes the two primary driving teeth 9 on the expansion sleeve, and then the two primary driving teeth 9 are pressed tightly by the pressing head 3, so that gear hobbing can be performed. The mounting seat 2 is provided with a first avoiding section 21 and a second avoiding section 31 on the pressure head 3, so that a machining space is provided for the gear hobbing mechanism, two primary driving teeth 9 can be machined at one time, and the machining efficiency is improved; meanwhile, the expansion sleeve 61 is adopted for fixation, so that the gap between the inner hole of the primary driving tooth 9 and the expansion sleeve 61 can be eliminated, the fixation is more stable, the vibration is avoided, and the machining precision is higher.

The foregoing is only the embodiments of the present utility model, and therefore, the patent scope of the utility model is not limited thereto, and all equivalent structures made by the description of the utility model and the accompanying drawings are directly or indirectly applied to other related technical fields, which are all within the scope of the utility model.

Claims (9)

1. Primary initiative tooth gear hobbing frock, its characterized in that: including base, mount pad, pressure head, axle sleeve, fixing base, expand cover, taper sleeve and regulating part, the mount pad is fixed on the base, have the first section of dodging on the mount pad, the taper sleeve is established expand in the cover, expand the cover and establish on the base, expand the cover and be used for fixed two elementary initiative teeth, the regulating part passes the taper sleeve and establishes on the mount pad, the regulating part is used for adjusting the external diameter of expanding the cover, the pressure head is fixed on the axle sleeve, the axle sleeve rotates and establishes on the fixing base, be provided with the second on the pressure head and dodge the section.

2. The primary drive tooth hobbing tool as claimed in claim 1, wherein: the front end of the first avoiding section is provided with a conical positioning part, and the expansion sleeve is sleeved on the conical positioning part.

3. The primary drive tooth hobbing tool as claimed in claim 2, wherein: the adjusting piece is a screw, a screw hole is formed in the conical positioning portion, and the screw penetrates through the conical sleeve and is arranged in the screw hole.

4. The primary drive tooth hobbing tool as claimed in claim 1, wherein: the second avoidance section is provided with an accommodating groove.

5. The primary drive tooth hobbing tool as claimed in claim 1, wherein: the fixing seat comprises a shaft body, a bottom plate and fixing columns, wherein the shaft body is arranged on one side of the bottom plate, the fixing columns are arranged on the other side of the bottom plate, and the shaft sleeve is sleeved on the shaft body.

6. The primary drive tooth hobbing tool as recited in claim 5, wherein: a thrust bearing is arranged between the shaft sleeve and the bottom plate, a pressing plate is arranged on the bottom plate, and the pressing plate is used for limiting the shaft sleeve.

7. The primary drive tooth hobbing tool as recited in claim 6, wherein: the bottom plate is provided with a first step surface and a second step surface, the thrust bearing is arranged on the first step surface, and the pressing plate is arranged on the second step surface.

8. The primary drive tooth hobbing tool as recited in claim 5, wherein: the shaft body, the bottom plate and the fixed column are integrally formed.

9. The primary drive tooth hobbing tool as claimed in claim 1, wherein: and the base is provided with a mounting hole.