Gear disc press-fitting shaft tool clamp

Abstract

The utility model discloses a gear disc press-fitting shaft work fixture which is characterized in that a bottom plate, a gear disc positioning fixture, a shaft seat, an upper die assembly and an upper die pressing needle are arranged in a matched mode, a gear disc to be assembled is placed in the gear disc positioning fixture, the shaft seat is detachably installed on the gear disc positioning fixture, and a shaft inserting hole is formed in the shaft seat; the shaft inserting hole and a shaft mounting hole in the gear disc are aligned and communicated in the vertical direction, a shaft is inserted into the shaft inserting hole, the upper die pressing needle is aligned with the shaft in the shaft inserting hole in the vertical direction, and the gas-liquid supercharger presses the upper die assembly to drive the upper die pressing needle to move in the shaft direction. Alignment and assembly of the shaft and the shaft mounting hole are rapidly completed, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of the assembly of a gear disk and a shaft, in particular to a tooling fixture for press-fitting a shaft on a gear disk. Background Art

[0002] The current gear shaft assembly includes a gear disk and a shaft, and the shaft needs to be assembled onto the gear disk. However, due to the limited strength of human hands, the shaft cannot be directly assembled onto the gear disk manually at present. Therefore, relevant hydraulic equipment is currently used to grab the shaft and then press it into the shaft mounting hole of the gear disk. However, during the assembly process, it is easy to cause the situation that the shaft and the shaft mounting hole cannot be aligned. During the assembly process, the shaft and the shaft mounting hole need to be aligned repeatedly, reducing the assembly efficiency. Summary of the Utility Model

[0003] Based on this, it is necessary to provide a tooling fixture for press-fitting a shaft on a gear disk, which can align the upper shaft with the shaft hole on the gear disk through the fixture and quickly complete the assembly.

[0004] A tooling fixture for press-fitting a shaft on a gear disk includes a bottom plate, a gear disk positioning fixture, a shaft seat, an upper die assembly and an upper die pressing pin. The gear disk positioning fixture is installed on the bottom plate. A gear disk accommodating groove is formed on the gear disk positioning fixture for placing the gear disk. The shaft seat is detachably installed on the gear disk positioning fixture. A shaft insertion hole is formed on the shaft seat. The shaft insertion hole is vertically aligned and communicated with the shaft mounting hole on the gear disk. The upper die assembly is slidably installed on the gear disk positioning fixture. The upper die pressing pin is installed on the upper die assembly and is vertically aligned with the shaft insertion hole.

[0005] In one embodiment, the upper die assembly includes a pressing plate, a supporting plate, a pressing pin mounting seat, two guiding columns and two limiting columns. The supporting plate is fixedly installed on the bottom surface of the pressing plate. The pressing pin mounting seat sequentially passes through the supporting plate and the pressing plate. The two guiding columns pass through the supporting plate and are symmetrically arranged at both ends of the pressing plate. The two limiting columns are symmetrically arranged at both ends of the pressing plate.

[0006] In one embodiment, the gear disk positioning fixture includes guiding column mounting holes corresponding to the guiding columns. Elastic members are provided in the guiding column mounting holes. When one end of the guiding column is inserted into the guiding column mounting hole, one end of the elastic member is sleeved on the guiding column, and the other end is installed at the bottom of the guiding column mounting hole.

[0007] In one embodiment, a first notch is formed at a position on the outer layer of the gear disk positioning fixture corresponding to the limiting column. The first notch is used for accommodating the limiting column.

[0008] In one embodiment, the gear disc positioning fixture includes a plurality of limiting members, and the limiting members are fixedly installed on the top of the gear disc positioning fixture.

[0009] In one embodiment, a second notch is formed at a position on the outer layer of the shaft seat corresponding to the limiting member, and the limiting member is received in the second notch to limit the movement of the shaft seat.

[0010] In one embodiment, the gear disc accommodating groove has a limiting convex column.

[0011] The above-mentioned gear disc press-fitting shaft tooling fixture, through the cooperative setting of the bottom plate, the gear disc positioning fixture, the shaft seat, the upper die assembly and the upper die pressing needle, places the gear disc to be assembled in the gear disc positioning fixture. The shaft seat is detachably installed on the gear disc positioning fixture. A shaft insertion hole is formed on the shaft seat, and the shaft insertion hole is aligned and communicated with the shaft installation hole on the gear disc in the vertical direction. The shaft is inserted into the shaft insertion hole, and the upper die pressing needle is aligned with the shaft in the shaft insertion hole in the vertical direction. The air-liquid booster presses the upper die assembly to drive the upper die pressing needle to move towards the shaft until the shaft is pressed into the shaft installation hole on the gear disc through the shaft insertion hole, quickly completing the alignment and assembly of the shaft and the shaft installation hole, and improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is an assembly structure schematic diagram of the gear disc press-fitting shaft tooling fixture according to an embodiment of the present invention;

[0013] Figure 2 is Figure 1 an assembly structure schematic diagram of the gear disc and the gear disc positioning fixture of the gear disc press-fitting shaft tooling fixture according to an embodiment of the present invention;

[0014] Figure 3 is Figure 1 a structural schematic diagram of the shaft seat of the gear disc press-fitting shaft tooling fixture according to an embodiment of the present invention;

[0015] Figure 4 is Figure 1 an assembly structure schematic diagram of the upper die assembly and the upper die pressing needle of the gear disc press-fitting shaft tooling fixture according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] To make the above objects, features, and advantages of the present utility model more apparent and understandable, the following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0017] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element present. In contrast, when an element is referred to as being "directly" connected to another element, there is no intermediate element.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0019] As Figure 1 and Figure 2 shown, a gear disk press-fitting shaft tooling fixture includes a bottom plate 1, a gear disk positioning fixture 2, a shaft seat 3, an upper die assembly 4, and an upper die pressing needle 5. The gear disk positioning fixture 2 is installed on the bottom plate 1. A gear disk accommodating groove 21 is provided on the gear disk positioning fixture 2 for placing a gear disk 6. The shaft seat 3 is detachably installed on the gear disk positioning fixture 2. A shaft insertion hole 31 is provided on the shaft seat 3. The shaft insertion hole 31 is aligned and communicated with the shaft mounting hole 61 on the gear disk 6 in the vertical direction. The upper die assembly 4 is slidably installed on the gear disk positioning fixture 2. The upper die pressing needle 5 is installed on the upper die assembly 4 and is aligned with the shaft insertion hole 31 in the vertical direction.

[0020] As Figure 4 shown, the upper die assembly 4 includes a pressing plate 41, a support plate 42, a pressing needle mounting seat 43, two guide columns 44, and two limiting columns 45. The support plate 42 is fixedly installed on the bottom surface of the pressing plate 41. The pressing needle mounting seat 43 passes through the support plate 42 and the pressing plate 41 in sequence. The two guide columns 44 pass through the support plate 42 and are symmetrically arranged at both ends of the pressing plate 41. The two limiting columns 45 are symmetrically arranged at both ends of the pressing plate 41.

[0021] The upper die pressing pin 5 is mainly used to press the shaft 7. When assembling the gear disk 6 and the shaft 7, place the gear disk 6 in the gear disk accommodating groove 21, place the shaft seat 3 on the gear disk positioning fixture 2, align and communicate the shaft insertion hole 31 on the shaft seat 3 with the shaft installation hole 61 on the gear disk 6 in the vertical direction, insert the shaft 7 into the shaft insertion hole 31, start the gas-liquid booster, the gas-liquid booster presses the pressure plate 41, and the pressure plate 41 drives the upper die pressing pin 5 to move towards the shaft 7 through the pressing pin mounting seat 43 until it abuts against the shaft 7 and then presses the shaft 7 into the shaft installation hole 61 on the gear disk 6 to complete the assembly of the gear disk 6 and the shaft 7.

[0022] In this way, for the gear disk shaft pressing tooling fixture, through the cooperation of the bottom plate 1, the gear disk positioning fixture 2, the shaft seat 3, the upper die assembly 4 and the upper die pressing pin 5, place the gear disk 6 to be assembled in the gear disk positioning fixture 2, the shaft seat 3 is detachably installed on the gear disk positioning fixture 2, the shaft insertion hole 31 is opened on the shaft seat 3, the shaft insertion hole 31 is aligned and communicated with the shaft installation hole 61 on the gear disk 6 in the vertical direction, the shaft 7 is inserted into the shaft insertion hole 31, the upper die pressing pin 5 is aligned with the shaft in the shaft insertion hole 31 in the vertical direction, the gas-liquid booster presses the upper die assembly 4 and then drives the upper die pressing pin 5 to move towards the shaft 7 until the shaft 7 is pressed into the shaft installation hole 61 on the gear disk 6 through the shaft insertion hole 31, quickly completing the alignment and assembly of the shaft 7 and the shaft installation hole 61, and improving the work efficiency.

[0023] As Figure 2 shown, in one embodiment, the gear disk positioning fixture 2 includes a guide post mounting hole 22 corresponding to the guide post 44, and an elastic member is provided in the guide post mounting hole 22. When one end of the guide post 44 is inserted into the guide post mounting hole 22, one end of the elastic member is sleeved on the guide post 44, and the other end is installed at the bottom of the guide post mounting hole 22.

[0024] In this way, the elastic member can be a spring. When the gas-liquid booster presses the upper die assembly 4 and then drives the upper die pressing pin 5 to move towards the shaft 7, the guide post 44 moves towards the bottom of the guide post mounting hole 22 in the guide post mounting hole 22, thereby causing the elastic member to undergo compressive deformation. After the assembly of the gear disk 6 and the shaft 7 is completed, the gas-liquid booster is removed from the upper die assembly 4. At this time, the elastic member restores its deformation and drives the upper die assembly 4 to return to the initial position through the guide post 44.

[0025] In one embodiment, a first notch 23 is opened at a position on the outer layer of the gear disk positioning fixture 2 corresponding to the limit post 45, and the first notch 23 is used to accommodate the limit post 45.

[0026] In this way, when the air-liquid booster presses the upper die assembly 4 and drives the limit post 45 to move towards the shaft 7, when the limit post 45 passes through the first notch 23 and abuts against the gear disc positioning fixture 2, at this time, it prompts the assembler that the assembly of the gear disc 6 and the shaft 7 is completed. The air-liquid booster should be removed from the upper die assembly 4 and not continue to press the upper die assembly 4, which plays a very good limiting role.

[0027] In one embodiment, the gear disc positioning fixture 2 includes a plurality of limit members 24, and the limit members 24 are fixedly installed on the top of the gear disc positioning fixture 2; as Figure 3 shown, a second notch 32 is formed at a position corresponding to the outer layer of the shaft seat 3 and the limit member 24, and the limit member 24 is accommodated in the second notch 32 for restricting the movement of the shaft seat 3.

[0028] In this way, the number of the limit members 24 is at least two, and they are respectively arranged corresponding to the second notch 32. When the shaft seat 3 is assembled to the gear disc positioning fixture 2, the limit member 24 is clamped in the second notch 32, which can play a very good limiting and fixing role for the shaft seat 3. When it is necessary to disassemble the shaft seat 3 from the gear disc positioning fixture 2, the shaft seat 3 can be directly removed from the gear disc positioning fixture 2 along the vertical direction.

[0029] In one embodiment, the gear disc accommodating groove 21 has a limit convex column 211.

[0030] In this way, the bottom of the gear disc 6 has a limit hole adapted to the limit convex column 211. When the gear disc 6 needs to be placed into the gear disc accommodating groove 21, the limit convex column 211 is accommodated in the limit hole, which can ensure that the shaft insertion hole 31 and the shaft mounting hole 61 on the gear disc 6 are aligned and communicated in the vertical direction, and quickly complete the assembly of the gear disc 6.

[0031] The above embodiments only represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A gear plate press-fit shaft fixture, characterized in that: It includes a base plate, a gear plate positioning fixture, an axle seat, an upper mold assembly and an upper mold pressing pin, the gear plate positioning fixture is installed on the base plate, the gear plate positioning fixture is provided with a gear plate accommodating groove for placing the gear plate, the axle seat can be detachably installed on the gear plate positioning fixture, the axle seat is provided with a shaft plug-in hole, the shaft plug-in hole is vertically aligned and connected with the shaft mounting hole on the gear plate, the upper mold assembly can be slidably installed on the gear plate positioning fixture, and the upper mold pressing pin is installed on the upper mold assembly and is vertically aligned with the shaft plug-in hole.

2. A gear plate press-fit shaft fixture according to claim 1, characterized in that: The upper mold assembly includes a pressing plate, a support plate, a pressure needle mounting seat, two guide columns and two limit columns. The support plate is fixedly mounted on the bottom surface of the pressing plate, and the pressure needle mounting seat is sequentially penetrated through the support plate and the pressing plate. The two guide columns pass through the support plate and are symmetrically arranged at both ends of the pressing plate. The two limit columns are symmetrically arranged at both ends of the pressing plate.

3. The gear plate press-fit shaft fixture according to claim 2, characterized in that: The gear plate positioning fixture includes a guide column mounting hole opened corresponding to the guide column, and an elastic member is provided in the guide column mounting hole. When one end of the guide column is inserted into the guide column mounting hole, one end of the elastic member is sleeved on the guide column, and the other end is installed at the bottom of the guide column mounting hole.

4. The gear plate press-fit shaft fixture according to claim 3, characterized in that: A first notch is provided at a position of the outer layer of the gear plate positioning fixture corresponding to the limiting column, and the first notch is used to accommodate the limiting column.

5. The gear plate press-fit shaft fixture according to claim 4, characterized in that: The gear plate positioning fixture comprises a plurality of limiting members, and the limiting members are fixedly mounted on the top of the gear plate positioning fixture.

6. A gear plate press-fit shaft fixture according to claim 5, characterized in that: A second notch is provided at a position of the outer layer of the shaft seat corresponding to the limiting member, and the limiting member is accommodated in the second notch to limit the movement of the shaft seat.

7. The gear plate press-fit shaft fixture according to claim 1, characterized in that: The gear plate accommodating groove is provided with a limiting protrusion.

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