Eccentric disc shaft pressing tool clamp

Abstract

The utility model discloses an eccentric disc shaft pressing tool clamp which is characterized in that a base, an eccentric disc positioning clamp, a shaft seat, an upper die assembly and a pressing column are arranged in a matched mode, an eccentric disc to be assembled is placed in the eccentric disc positioning clamp, then the shaft seat is installed on the eccentric disc positioning clamp, and a shaft hole is formed in the shaft seat; the shaft hole and a shaft assembling hole in the eccentric disc are aligned and communicated in the vertical direction, the shaft is inserted into the shaft hole, the pressing column is aligned with the shaft in the shaft hole in the vertical direction, and the gas-liquid supercharger presses the upper die assembly and then drives the pressing column to move in the shaft direction till the shaft is pressed into the shaft assembling hole in the eccentric disc through the shaft hole. And the shaft and the eccentric disc are quickly assembled, and the assembling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of the assembly of an eccentric disc and a shaft, and particularly relates to a fixture for pressing the shaft of an eccentric disc. Background Art

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

[0003] Based on this, it is necessary to provide a fixture for pressing the shaft of an eccentric disc, which can align the shaft with the shaft hole on the eccentric disc through the fixture and quickly complete the assembly.

[0004] A fixture for pressing the shaft of an eccentric disc includes a base, an eccentric disc positioning fixture, a shaft seat, an upper die assembly and a pressing column. The eccentric disc positioning fixture is installed on the base plate. An eccentric disc accommodating groove is formed on the eccentric disc positioning fixture for placing the eccentric disc. The shaft seat is detachably installed on the eccentric disc positioning fixture. A shaft hole is formed on the shaft seat, and the shaft hole is vertically aligned and communicated with the shaft assembly hole on the eccentric disc. The upper die assembly is slidably installed on the eccentric disc positioning fixture in the vertical direction.

[0005] The upper die assembly includes an upper pressing plate, a lower pressing plate, two guiding columns and two adjustable limiting screws. The lower pressing plate is fixedly installed on the bottom surface of the upper pressing plate. The two guiding columns pass through the lower pressing plate and are symmetrically arranged at both ends of the upper pressing plate. The two adjustable limiting screws are symmetrically arranged at both ends of the upper pressing plate. The pressing column is installed on the lower pressing plate and is vertically aligned with the shaft hole.

[0006] In one embodiment, the eccentric disc positioning fixture includes guiding column installation holes corresponding to the guiding columns. Springs are arranged in the guiding column installation holes. When one end of the guiding column is inserted into the guiding column installation hole, one end of the spring is sleeved on the guiding column, and the other end is installed at the bottom of the guiding column installation hole.

[0007] In one embodiment, first notches are symmetrically formed at the top of the eccentric disc positioning fixture, and the first notches are communicated with the eccentric disc accommodating groove.

[0008] In one embodiment, the eccentric disc positioning fixture includes a plurality of limiting members, and the limiting members are fixedly installed at the top of the eccentric 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 for restricting the movement of the shaft seat.

[0010] In one embodiment, the adjustable limiting screw includes a screw and a sleeve, and the screw and the sleeve are in threaded connection.

[0011] In one embodiment, a positioning hole is formed on the shaft seat, and the positioning hole is adapted to a convex post on the eccentric disc.

[0012] For the above eccentric disc shaft pressing tooling fixture, through the cooperative arrangement of the base, the eccentric disc positioning fixture, the shaft seat, the upper die assembly and the pressing column, the eccentric disc to be assembled is placed in the eccentric disc positioning fixture, and then the shaft seat is installed on the eccentric disc positioning fixture. A shaft hole is formed on the shaft seat, and the shaft hole is aligned and communicated with the shaft assembly hole on the eccentric disc in the vertical direction. The shaft is inserted into the shaft hole, the pressing column is aligned with the shaft in the shaft hole in the vertical direction, and the air-liquid booster presses the upper die assembly to drive the pressing column to move towards the shaft direction until the shaft is pressed into the shaft assembly hole on the eccentric disc through the shaft hole, quickly completing the assembly of the shaft and the eccentric disc and improving the assembly efficiency. Description of the Drawings

[0013] Figure 1 is a schematic assembly structure diagram of the eccentric disc shaft pressing tooling fixture according to an embodiment of the present invention;

[0014] Figure 2 is Figure 1 a schematic assembly structure diagram of the eccentric disc and the eccentric disc positioning fixture of the eccentric disc shaft pressing tooling fixture according to an embodiment of the present invention;

[0015] Figure 3 is Figure 1 a schematic structure diagram of the shaft seat of the eccentric disc shaft pressing tooling fixture according to an embodiment of the present invention;

[0016] Figure 4 is Figure 1 a schematic assembly structure diagram of the upper die assembly and the pressing column of the eccentric disc shaft pressing tooling fixture according to an embodiment of the present invention. Detailed Embodiments

[0017] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] 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. In contrast, when an element is said to be "directly" connected to another element, there are no intermediate elements.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] like Figure 1 and Figure 4 As shown, an eccentric disk pressing fixture comprises a base 1, an eccentric disk positioning fixture 2, a shaft seat 3, an upper die assembly 4 and a pressing column 5, wherein the eccentric disk positioning fixture 2 is mounted on the base plate 1, an eccentric disk accommodating groove 21 is provided on the eccentric disk positioning fixture 2 for placing the eccentric disk 6, the shaft seat 3 is detachably mounted on the eccentric disk positioning fixture 2, an axis hole 31 is provided on the shaft seat 3, the axis hole 31 is vertically aligned with and communicated with the axis assembly hole 61 on the eccentric disk 6, and the upper die assembly 4 is slidably mounted on the eccentric disk positioning fixture 2 in the vertical direction;

[0021] The upper mold assembly 4 includes an upper pressure plate 41, a lower pressure plate 42, two guide columns 43 and two adjustable limit screws 44. The lower pressure plate 42 is fixedly installed on the bottom surface of the upper pressure plate 41. The two guide columns 43 pass through the lower pressure plate 42 and are symmetrically arranged at the two ends of the upper pressure plate 41. The two adjustable limit screws 44 are symmetrically arranged at the two ends of the upper pressure plate 41. The pressure column 5 is installed on the lower pressure plate 42 and is aligned with the shaft hole 31 in the vertical direction.

[0022] The pressure column 5 is mainly used to press the shaft 7 into the shaft assembly hole 61 on the eccentric disk 6. When the eccentric disk 6 and the shaft 7 need to be assembled, the eccentric disk 6 is placed in the eccentric disk accommodating groove 21, and the shaft seat 3 is placed on the eccentric disk positioning fixture 2, so that the shaft hole 31 and the shaft assembly hole 61 on the eccentric disk 6 are aligned in the vertical direction and connected, and the shaft 7 is plugged into the shaft hole 31, and the gas-liquid booster is started. The gas-liquid booster presses the upper pressure plate 41, and the upper pressure plate 41 drives the pressure column 5 to move toward the direction of the shaft 7 through the lower pressure plate 42 until it contacts the shaft 7 and presses the shaft 7 into the shaft assembly hole 61 on the eccentric disk 6, completing the assembly of the eccentric disk 6 and the shaft 7.

[0023] In this way, the eccentric disk pressing fixture places the eccentric disk 6 to be assembled in the eccentric disk positioning fixture 2 through the coordinated arrangement of the base 1, the eccentric disk positioning fixture 2, the shaft seat 3, the upper mold assembly 4 and the pressing column 5, and then installs the shaft seat 3 on the eccentric disk positioning fixture 2. A shaft hole 31 is provided on the shaft seat 3, and the shaft hole 31 is vertically aligned and connected with the shaft assembly hole 61 on the eccentric disk 6. The shaft 7 is inserted into the shaft hole 31, and the pressing column 5 is vertically aligned with the shaft 7 in the shaft hole 31. The gas-liquid booster presses the upper mold assembly 4 and then drives the pressing column 5 to move toward the direction of the shaft 7 until the shaft 7 is pressed into the shaft assembly hole 61 on the eccentric disk 6 through the shaft hole 31, and the assembly of the shaft 7 and the eccentric disk 6 is quickly completed, thereby improving the assembly efficiency.

[0024] like Figure 2 As shown, in one embodiment, the eccentric disk positioning fixture 2 includes a guide column mounting hole 22 opened corresponding to the guide column 43, and a spring is provided in the guide column mounting hole 22. When one end of the guide column 43 is inserted into the guide column mounting hole 22, one end of the spring is sleeved on the guide column 43, and the other end is installed at the bottom of the guide column mounting hole 22.

[0025] Thus, when the gas-liquid booster presses the upper and lower pressure plates 41, 42 toward the eccentric disk positioning fixture 2, the two guide posts 43 are driven by the upper and lower pressure plates 41, 42 toward the bottom of the guide post mounting holes 22, at which point the springs undergo compression deformation. After the gas-liquid booster is removed from the upper pressure plate 41, the springs, in the process of recovering their deformation, drive the guide posts 43 away from the bottom of the guide post mounting holes 22, returning the upper and lower pressure plates 41, 42 to their initial positions.

[0026] In one embodiment, a first notch 23 is symmetrically provided on the top of the eccentric disk positioning fixture 2 , and the first notch 23 is communicated with the eccentric disk accommodating groove 21 .

[0027] In this way, through the setting of the first notch 23, it is mainly convenient to put the eccentric disk 6 into or take it out of the eccentric disk accommodation groove 21. When the eccentric disk 6 is clamped by an external force and placed in the eccentric disk accommodation groove 21, due to the setting of the first notch 23, it is convenient for the clamping member to move out from the eccentric disk 6. When it is necessary to take out the eccentric disk 6 with the shaft 7 installed from the eccentric disk accommodation groove 21, due to the setting of the first notch 23, it is convenient for the clamping member to clamp the eccentric disk 6 from the outside, so as to move the eccentric disk 6 out of the eccentric disk accommodation groove 21.

[0028] In one embodiment, the eccentric disk positioning fixture 2 includes a plurality of limiting members 24, and the limiting members 24 are fixedly installed on the top of the eccentric disk positioning fixture 2; a second notch 32 is formed at a position corresponding to the outer layer of the shaft seat 3 and the limiting member 24, and the limiting member 24 is accommodated in the second notch 32 for restricting the movement of the shaft seat 3.

[0029] In this way, when the shaft seat 3 is installed on the eccentric disk positioning fixture 2, the limiting member 24 is clamped in the second notch 32, playing a certain fixing role for the shaft seat 3. After the shaft 7 and the eccentric disk 6 are assembled, the shaft seat 3 can be moved out along the vertical direction of the limiting member 24, and both installation and disassembly are relatively convenient.

[0030] In one embodiment, the adjustable limiting screw 44 includes a screw 441 and a sleeve 442, and the screw 441 and the sleeve 442 are in threaded connection.

[0031] In this way, the adjustable limiting screw 44 mainly plays a role in limiting the movement of the upper die assembly 4 in the vertical direction. When the gas-liquid booster presses the upper die assembly 4 and moves it towards the shaft seat 3, it also drives the adjustable limiting screw 44 to move towards the top of the eccentric disk positioning fixture 2 until the screw 441 of the adjustable limiting screw 44 abuts against the top of the eccentric disk positioning fixture 2, preventing the upper die assembly 4 from moving towards the shaft seat 3. By adjusting the length of the screw 441 in the sleeve 442, the limiting height of the adjustable limiting screw 44 can be adjusted.

[0032] As Figure 3 shown, in one embodiment, a positioning hole 33 is formed on the shaft seat 3, and the positioning hole 33 is adapted to the convex column 62 on the eccentric disk 6.

[0033] In this way, the positioning hole 33 is a through hole in the vertical direction. When the shaft seat 3 is placed on the eccentric disk 6, the convex column 62 is inserted into the positioning hole 33, aligning the shaft hole 31 with the shaft assembly hole 61 on the eccentric disk 6 in the vertical direction, without the need to frequently adjust the placement position of the shaft seat 3, playing a good positioning role for the shaft seat 3.

[0034] The above-described embodiments merely represent several implementation manners of the present utility model. The description 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 utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. An eccentric disc pressing shaft tooling fixture, characterized in that: It includes a base, an eccentric disk positioning fixture, a shaft seat, an upper die assembly and a pressing column. The eccentric disk positioning fixture is installed on the base plate. An eccentric disk accommodating groove is provided on the eccentric disk positioning fixture for placing an eccentric disk. The shaft seat is detachably installed on the eccentric disk positioning fixture. A shaft hole is provided on the shaft seat. The shaft hole and the shaft assembly hole on the eccentric disk are aligned and communicated in the vertical direction. The upper die assembly is slidably installed on the eccentric disk positioning fixture in the vertical direction. The upper die assembly includes an upper pressing plate, a lower pressing plate, two guiding columns and two adjustable limiting screws. The lower pressing plate is fixedly installed on the bottom surface of the upper pressing plate. The two guiding columns pass through the lower pressing plate and are symmetrically arranged at both ends of the upper pressing plate. The two adjustable limiting screws are symmetrically arranged at both ends of the upper pressing plate. The pressing column is installed on the lower pressing plate and is aligned with the shaft hole in the vertical direction.

2. The eccentric disc shaft pressing tooling fixture according to claim 1, wherein: The eccentric disk positioning fixture includes guiding column installation holes corresponding to the guiding columns. Springs are provided in the guiding column installation holes. When one end of the guiding column is inserted into the guiding column installation hole, one end of the spring is sleeved on the guiding column, and the other end is installed at the bottom of the guiding column installation hole.

3. The eccentric disc shaft pressing tooling fixture according to claim 1, characterized in that: First notches are symmetrically provided at the top of the eccentric disk positioning fixture. The first notches are communicated with the eccentric disk accommodating groove.

4. The eccentric disk shaft pressing tooling fixture according to claim 3, characterized in that: The eccentric disk positioning fixture includes several limiting members, and the limiting members are fixedly installed on the top of the eccentric disk positioning fixture.

5. The eccentric disk shaft pressing tooling fixture according to claim 4, characterized in that: Second notches are provided at positions corresponding to the limiting members on the outer layer of the shaft seat. The limiting members are accommodated in the second notches for restricting the movement of the shaft seat.

6. The eccentric disc shaft pressing tooling fixture according to claim 1, wherein: The adjustable limiting screw includes a screw and a sleeve, and the screw and the sleeve are threadedly connected.

7. The eccentric disk pressing tooling fixture according to claim 1, characterized in that: A positioning hole is provided on the shaft seat, and the positioning hole is adapted to the convex column on the eccentric disk.

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