Split type rubber node press fitting clamp

Abstract

The utility model discloses a split type rubber node press fitting clamp which comprises a base and a large positioning pin. And a small positioning pin. A guide sleeve matched with the small positioning pin is arranged on the upper portion of the small positioning pin, the upper end of the guide sleeve is matched with the lower end of a split type rubber node to be pressed in a positioning mode, and the upper end of the split type rubber node is matched with a pressing block above the split type rubber node. A spring is arranged in the guide sleeve, and the lower end of the spring abuts against the base. The guide sleeve can move in the axial direction of the small positioning pin, and the pressing block is used for pressing the split type rubber joint into a shaft hole in the second end of the axle box. According to the press-fitting clamp, the split type rubber nodes are pressed into a whole, then the rubber nodes are pressed, the press-fitting clamp solves the problem of high scratch rate, and product quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber node press-fitting, in particular to a split rubber node press-fitting fixture. Background Art

[0002] Previous rubber joint press-fitting fixtures used slideways for guidance and positioning, with a single-column press providing the pressing force, which was then transmitted to the pivot joint via a pressure cap. After the rubber joints were changed to a split-body structure, the uneven circumferential hardness of the rubber in the middle section led to inconsistent compression during the press-fit process. The chamfer introduced during the press-fit of the upper joint lost its effectiveness, interfering with the enclosing component and causing widespread scratching, with a scratch rate of up to 50%. Adjusting the press speed and the pressing medium did not resolve the issue.

[0003] Therefore, based on the above technical problems, technicians in this field urgently need to develop a split rubber node press-fitting fixture. Utility Model Content

[0004] The purpose of the utility model is to provide a split rubber node press-fitting fixture, which first presses the split rubber node into a "whole" and then presses the rubber node. The press-fitting fixture solves the problem of high scratch rate and ensures product quality.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] The utility model discloses a split type rubber node press-fitting fixture, which comprises:

[0007] base;

[0008] A large positioning pin provided on one side of the base and cooperating with the first end of the axle box to support the first end of the axle box; and

[0009] A small positioning pin provided on the other side of the base and cooperating with the second end of the axle box to support the second end of the axle box;

[0010] A guide sleeve is provided on the upper part of the small positioning pin and cooperates with the small positioning pin. The upper end of the guide sleeve is positioned and cooperated with the lower end of the split rubber node to be press-fitted. The upper end of the split rubber node cooperates with the upper pressure block.

[0011] A spring is provided in the guide sleeve, and the lower end of the spring abuts against the base;

[0012] The guide sleeve can move axially along the small positioning pin, and the pressing block is used to press the split rubber node into the axial hole at the second end of the axle box.

[0013] Furthermore, the guide sleeve includes:

[0014] A first guide sleeve body extending into the shaft hole at the second end of the axle box; and

[0015] A guide ring is formed at the lower end of the first body of the guide sleeve and has a cross-sectional size larger than that of the first body of the guide sleeve, and two sides of the guide ring protrude outward to form guide portions;

[0016] A guide groove is provided at a position where the small positioning pin cooperates with the guide portion, and the guide portion is slidably connected to the guide groove.

[0017] Furthermore, a support portion is provided on the inner side of the upper portion of the first body of the guide sleeve. The support portion is provided with a positioning groove that cooperates with the lower end of the split rubber node, and the lower end of the split rubber node is embedded in the positioning groove.

[0018] Furthermore, a nylon sleeve is provided between the first body of the guide sleeve and the inner wall of the shaft hole at the second end of the axle box;

[0019] The nylon sleeve is arranged outside the first body of the guide sleeve.

[0020] In the above technical solution, the utility model provides a split rubber node press-fitting fixture, which has the following beneficial effects:

[0021] The press-fitting fixture of the utility model first presses the split rubber node into a "whole" and then press-fits the rubber node. The press-fitting fixture solves the problem of high scratch rate and ensures product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 This is a schematic structural diagram of a split-type rubber node press-fitting fixture disclosed in an embodiment of the present utility model;

[0024] Figure 2 This is a front view of a split rubber node press-fitting fixture disclosed in an embodiment of the utility model;

[0025] Figure 3 The present invention is a cross-sectional view of a split rubber node press-fitting fixture disclosed in an embodiment of the present invention.

[0026] Description of reference numerals:

[0027] 1. Base; 2. Large locating pin; 3. Small locating pin; 4. Pressure block; 6. Nylon sleeve; 7. Spring;

[0028] 10. Axle box; 11. First end; 12. Second end;

[0029] 20. Split rubber node;

[0030] 301, guide groove;

[0031] 501. First body of the guide sleeve; 502. Guide portion; 503. Support portion. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] See also Figures 1 to 3 As shown;

[0034] A split-type rubber node press-fitting fixture of this embodiment includes:

[0035] Base 1;

[0036] A large positioning pin 2 provided on one side of the base 1 and cooperating with the first end 11 of the axle box 10 to support the first end 11 of the axle box 10; and

[0037] A small positioning pin 3 is provided on the other side of the base 1 and cooperates with the second end 12 of the axle box 10 to support the second end 12 of the axle box 10;

[0038] A guide sleeve is provided on the upper part of the small positioning pin 3 and cooperates with the small positioning pin 3. The upper end of the guide sleeve is positioned and cooperated with the lower end of the split rubber node 20 to be pressed. The upper end of the split rubber node 20 cooperates with the upper pressure block 4.

[0039] A spring 7 is provided in the guide sleeve, and the lower end of the spring 7 abuts against the base 1;

[0040] The guide sleeve can move axially along the small positioning pin 3 , and the pressing block 4 is used to press the split rubber node 20 into the axial hole of the second end 12 of the axle box 10 .

[0041] Specifically, this embodiment discloses a press-fitting fixture for a split rubber joint 20. The fixture comprises a base 1, a large locating pin 2, and a small locating pin 3, respectively disposed at each end of the base 1. Both the large locating pin 2 and the small locating pin 3 are cylindrical in structure. In this embodiment, the large locating pin 2 is supported on the first end 11 of the axle box 10, while the small locating pin 3 is supported on the second end 12 of the axle box 10. A guide sleeve is disposed at the second end 12 of the axle box 10, containing a spring 7. The upper end of the guide sleeve positions and supports the split rubber joint 20. A pressure block 4 is disposed at the upper end of the split rubber joint 20. The pressure block 4 is used to press the split rubber joint 20 into the axial hole of the second end 12 of the axle box 10 using an external pressure device. In this embodiment, the guide sleeve and the small locating pin 3 are in a sliding fit. During press-fitting, the guide sleeve moves axially along the small locating pin 3. Furthermore, the height and stiffness of the spring 7 can be adjusted based on the dimensions of the small locating pin 3 and the guide sleeve, as well as the stiffness of the split rubber joint 20.

[0042] Preferably, the guide sleeve of this embodiment includes a guide sleeve first body 501 extending into the shaft hole of the second end 12 of the axle box 10; and a guide ring formed at the lower end of the guide sleeve first body 501 and having a larger cross-sectional size than the guide sleeve first body 501, with guide portions 502 protruding outward on both sides of the guide ring;

[0043] To achieve a sliding connection between the guide sleeve and the small positioning pin 2, a guide groove 301 is provided at the location where the small positioning pin 3 mates with the guide portion 502 in this embodiment. The guide portion 502 is slidably connected to the guide groove 301. The lower end of the guide sleeve in this embodiment slides in the guide groove 301 of the small positioning pin 3 via the guide portion 502. As an expanded embodiment, to prevent wear of components during sliding, grease is applied to the contact area between the guide portion 502 and the guide groove 301.

[0044] Preferably, a support portion 503 is provided on the inner side of the upper portion of the first body 501 of the guide sleeve in this embodiment. The support portion 503 is provided with a positioning groove that cooperates with the lower end of the split rubber node 20 , and the lower end of the split rubber node 20 is embedded in the positioning groove.

[0045] In order to prevent the guide sleeve from wearing the shaft hole when being press-fitted with the split rubber node 20, a nylon sleeve 6 is provided between the first body 501 of the guide sleeve and the inner wall of the shaft hole of the second end 12 of the axle box 10 in this embodiment; wherein, the nylon sleeve 6 is sleeved on the outside of the first body 501 of the guide sleeve.

[0046] In the above technical solution, the utility model provides a split rubber node press-fitting fixture, which has the following beneficial effects:

[0047] The press-fitting fixture of the utility model first presses the split rubber node 20 into a "whole" and then press-fits the rubber node. The press-fitting fixture solves the problem of high scratch rate and ensures product quality.

[0048] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A split rubber node press-fitting fixture, characterized in that: The press-fit fixture includes: Base (1); A large positioning pin (2) provided on one side of the base (1) and cooperating with the first end (11) of the axle box (10) to support the first end (11) of the axle box (10); and a small positioning pin (3) provided on the other side of the base (1) and cooperating with the second end (12) of the axle box (10) to support the second end (12) of the axle box (10); A guide sleeve is provided on the upper portion of the small positioning pin (3) and in cooperation with the small positioning pin (3); the upper end of the guide sleeve is positioned and cooperated with the lower end of the split rubber node (20) to be pressed; and the upper end of the split rubber node (20) cooperates with the upper pressing block (4); A spring (7) is provided in the guide sleeve, and the lower end of the spring (7) abuts against the base (1); The guide sleeve is capable of axially moving along the small positioning pin (3), and the pressing block (4) is used to press the split rubber node (20) into the axial hole of the second end (12) of the axle box (10).

2. A split rubber node press-fitting fixture according to claim 1, characterized in that: The guide sleeve comprises: A guide sleeve first body (501) extending into the shaft hole of the second end (12) of the axle box (10); and A guide ring is formed at the lower end of the first guide sleeve body (501) and has a cross-sectional size larger than that of the first guide sleeve body (501), with both sides of the guide ring protruding outward to form guide portions (502); A guide groove (301) is provided at a position where the small positioning pin (3) cooperates with the guide portion (502), and the guide portion (502) is slidably connected to the guide groove (301).

3. A split rubber node press-fitting fixture according to claim 2, characterized in that: A support portion (503) is provided on the inner side of the upper portion of the first body (501) of the guide sleeve. The support portion (503) is provided with a positioning groove that cooperates with the lower end of the split rubber node (20). The lower end of the split rubber node (20) is embedded in the positioning groove.

4. A split rubber node press-fitting fixture according to claim 2, characterized in that: A nylon sleeve (6) is provided between the first body (501) of the guide sleeve and the inner wall of the shaft hole of the second end (12) of the shaft box (10); The nylon sleeve (6) is sleeved on the outside of the first guide sleeve body (501).

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