Split type rubber node press fitting clamp

Abstract

The invention 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 the product quality is guaranteed.

Description

Technical Field

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

[0002] In the past, the rubber node press fixtures were guided and limited by slideways, the press force was provided by a single-column press, and the pressure was transmitted to the pivot node through the pressure cover to achieve press fitting. After the rubber node was changed to a split structure, the circumferential hardness of the rubber in the middle part was uneven, resulting in inconsistent compression during the press fitting process. The chamfer introduced when the upper node was pressed in lost its function and interfered with the containing part, resulting in batch scratches, with a scratch rate of up to 50%. Adjusting the press fitting speed and press fitting medium of the press fitting machine could not solve this problem.

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

[0004] The purpose of the present invention 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 object, the present invention provides the following technical solutions:

[0006] A split rubber node press-fitting fixture of the present invention comprises:

[0007] Pedestal;

[0008] A large positioning pin disposed 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 disposed 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 pressed, and the upper end of the split rubber node cooperates with the upper pressing block;

[0011] A spring is arranged 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] Further, the guide sleeve comprises:

[0014] A first guide sleeve body extending into the axial 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 parts;

[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, and the support portion is provided with a positioning groove matched 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 shaft box;

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

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

[0021] The press-fitting fixture of the present invention 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. 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 drawings required for use in the embodiments will be briefly introduced below. It is obvious that 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 It is a structural schematic diagram of a split type rubber node press-fitting fixture disclosed in an embodiment of the present invention;

[0024] Figure 2 It is a front view of a split type rubber node press-fitting fixture disclosed in an embodiment of the present invention;

[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 positioning pin; 3. Small positioning 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, guide sleeve first body; 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 rubber node press-fitting fixture of this embodiment includes:

[0035] Base 1;

[0036] A large positioning pin 2 disposed 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 disposed 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;

[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, and the upper end of the split rubber node 20 cooperates with the upper pressing block 4.

[0039] A spring 7 is arranged 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, the present embodiment discloses a press-fitting fixture suitable for a split rubber node 20, which includes a base 1, a large positioning pin 2 and a small positioning pin 3 respectively arranged at both ends of the base 1, wherein the large positioning pin 2 and the small positioning pin 3 are both configured as a cylindrical structure; the large positioning pin 2 of the present embodiment is used to support the first end 11 of the axle box 10, and the small positioning pin 3 is used to support the second end 12 of the axle box 10. A guide sleeve is arranged at the second end 12 of the axle box 10, and a spring 7 is arranged in the guide sleeve, and the upper end of the guide sleeve positions and supports the split rubber node 20, and a pressure block 4 is arranged at the upper end of the split rubber node 20, and the pressure block 4 can be used to press the split rubber node 20 into the axial hole of the second end 12 of the axle box 10 through an external pressure device. The guide sleeve of the present embodiment is in sliding cooperation with the small positioning pin 3, and when press-fitting, the guide sleeve moves along the axial direction of the small positioning pin 3. In addition, the height and stiffness of the spring 7 of the present embodiment can be adjusted according to the size of the small positioning pin 3, the guide sleeve and the stiffness of the split rubber node 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 cross-sectional size larger than the guide sleeve first body 501, and guide portions 502 protrude outwardly on both sides of the guide ring;

[0043] In order to achieve the sliding connection between the guide sleeve and the small positioning pin 2, a guide groove 301 is provided at the position where the small positioning pin 3 of this embodiment cooperates with the guide portion 502, and the guide portion 502 is slidably connected to the guide groove 301. The lower end of the guide sleeve of this embodiment slides with the guide groove 301 of the small positioning pin 3 through the guide portion 502. As an extended implementation method, in order to avoid wear of parts during sliding, grease is applied to the contact portion 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 of this embodiment. The support portion 503 is provided with a positioning groove matched 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 axial 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 axial 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 present invention provides a split rubber node press-fitting fixture, which has the following beneficial effects:

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

[0048] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions 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) disposed 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) is arranged 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); 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, and the upper end of the split rubber node (20) cooperates with the upper pressing block (4); A spring (7) is arranged in the guide sleeve, and the lower end of the spring (7) abuts against the base (1); 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).

2. A split type rubber node press-fitting fixture according to claim 1, characterized in that: The guide sleeve comprises: A first guide sleeve 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 body (501) of the guide sleeve and has a cross-sectional size larger than that of the first body (501) of the guide sleeve, and both sides of the guide ring protrude 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 type 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 matches 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 type 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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