Cylinder body pin shaft assembling steel ring tool

Abstract

The utility model discloses a cylinder body pin shaft assembling steel ring tool which comprises a sleeve and a punch, the sleeve is arranged on the outer side of the punch in a sleeved mode, the sleeve is in sliding fit with the punch, a spring is arranged between the sleeve and the punch, and a steel ring installation groove is formed in the middle of the punch. The spring is arranged on the outer side of the punch; the top end of the spring is connected with an end cover at the top end of the sleeve. The bottom end of the spring is connected with the middle of the punch. A conical surface is arranged on the outer side of the lower part of the punch; the upper limiting steel ring assembling device replaces manual work to assemble the upper limiting steel ring in a clamping groove in a pin shaft of an electro-hydraulic cylinder and a pin shaft of a hydraulic cylinder, is simple in structure and easy and convenient to operate, can replace manual work to conduct complex assembling, improves the assembling efficiency, and improves the assembling efficiency. The assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinder block part installation equipment, in particular to a steel ring tooling for assembling a cylinder block pin shaft. Background Technique

[0002] For the pin shafts of existing electro-hydraulic cylinders, electric cylinders and hydraulic cylinders, an upper limit steel ring needs to be installed. The upper limit steel ring is an elastic annular part with a slightly smaller opening. During the installation process of the upper limit steel ring, the upper limit steel ring needs to be pushed into the card slot. The existing upper limit steel ring has a complex assembly process and low manual assembly efficiency. Content of the Utility Model

[0003] The purpose of the utility model is to provide a steel ring tooling for assembling a cylinder block pin shaft, so as to solve the problems of low assembly efficiency and complex operation of the existing upper limit steel ring of the cylinder block pin shaft mentioned in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: A steel ring tooling for assembling a cylinder block pin shaft, including a sleeve and a punch. The sleeve is sleeved outside the punch, and the sleeve is slidably matched with the punch. A spring is arranged between the sleeve and the punch. A steel ring installation groove is arranged in the middle of the punch;

[0005] The spring is arranged outside the punch; the top end of the spring is connected to the end cover at the top end of the sleeve, and the bottom end of the spring is connected to the middle of the punch;

[0006] A conical surface is arranged on the outer side of the lower part of the punch; the steel ring installation groove is arranged above the conical surface of the punch, and the width of the punch at the steel ring installation groove is smaller than the width of the opening of the upper limit steel ring.

[0007] A positioning groove matched with the cylinder block is arranged at the bottom end of the punch.

[0008] The end cover is fixed to the top end of the sleeve by screws, and a sliding hole slidably matched with the side wall of the punch is arranged in the middle of the end cover.

[0009] A sleeve guide post slidably matched with the inner wall of the sleeve is arranged in the middle of the punch.

[0010] A limit guide groove is arranged on the side wall of the middle and lower part of the sleeve. The long axis direction of the limit guide groove is parallel to the central axis direction of the sleeve. A cylindrical pin is arranged in the middle of the punch. The cylindrical pin penetrates through the sleeve guide post, and both ends of the cylindrical pin are arranged in the limit guide groove and are slidably matched with the limit guide groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model replaces manual labor to assemble the upper limit steel ring into the card slot on the pin shaft of the electro-hydraulic cylinder, electric cylinder and hydraulic cylinder. The structure is simple and the operation is convenient. It can replace manual labor for complex assembly and improve the assembly efficiency.

[0013] 2. In the present utility model, a spring is used to reset the sleeve, and a cylindrical pin is used to limit the movement of the sleeve. After the tooling is used, the relative positions of the sleeve and the punch will quickly return to the state before use, which is convenient for the next assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic three-dimensional structure diagram of the present utility model;

[0015] Figure 2 is a front view of the present utility model before the upper limit steel ring is assembled;

[0016] Figure 3 is Figure 2 a sectional view taken along the A-A direction in

[0017] Figure 4 is a front view of the present utility model after the upper limit steel ring is assembled.

[0018] Figure 5 is Figure 4 a sectional view taken along the B-B direction in

[0019] In the above-mentioned drawings, pin shaft 1, upper limit steel ring 2, sleeve 3, punch 4, spring 5, conical surface 6, end cover 7, steel ring installation groove 8, positioning groove 9, sleeve guide post 10, screw 11, limit guiding groove 12, cylindrical pin 13, and clamping groove 14. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model.

[0021] As Figures 1-5 shown, the steel ring tooling for assembling the pin shaft of the cylinder block is used to assemble the limit steel ring on the pin shaft of the electro-hydraulic cylinder, electric cylinder and hydraulic cylinder. Specifically, the steel ring tooling for assembling the pin shaft 1 of the cylinder block includes a sleeve 3, a punch 4 and a spring 5. The sleeve 3 is sleeved outside the punch 4, and the sleeve 3 and the punch 4 can slide relative to each other. A conical surface 6 that is narrow at the top and wide at the bottom is provided on the outer side of the lower part of the punch 4. The upper limit steel ring 2 is sleeved at the conical surface 6 of the punch 4. The bottom end of the punch 4 is aligned with the top end of the pin shaft 1 of the cylinder block. The sleeve 3 is moved downward, and the upper limit steel ring 2 is pushed downward by the end face at the bottom end of the sleeve 3, and the upper limit steel ring 2 is gradually moved downward along the conical surface 6 into the installation position outside the pin shaft 1 of the cylinder block;

[0022] The spring 5 is arranged outside the punch 4 between the sleeve 3 and the punch 4. The top end of the spring 5 is connected to the end cover 7 at the top end of the sleeve 3, and the bottom end of the spring 5 is connected to the middle part of the punch 4. The spring 5 plays a role in resetting the sleeve 3. After the upper limit steel ring 2 is installed in place, the punch 4 is at a position at the top end of the pin shaft 1 of the cylinder block. The punch 4 and the sleeve 3 are reset through the spring 5.

[0023] A steel ring installation groove 8 is arranged at the top end of the conical surface 6. The width of the punch 4 inside the steel ring installation groove 8 is smaller than the width of the opening of the upper limit steel ring 2. The upper limit steel ring 2 is an open elastic ring. When the upper limit steel ring 2 is sleeved on the punch 4, the opening of the upper limit steel ring 2 is aligned with the steel ring installation groove 8 and pushed into the steel ring installation groove 8. Then the punch 4 enters the upper limit steel ring 2 from the opening of the upper limit steel ring 2 to sleeve the punch 4.

[0024] A positioning groove 9 that matches the cylinder block is arranged at the bottom end of the punch 4. When the punch 4 is placed at the top end of the pin shaft 1 of the cylinder block, the positioning groove 9 at the bottom end of the punch 4 matches the top end of the pin shaft 1 of the cylinder block, and the punch 4 is positioned through the positioning groove 9.

[0025] The sleeve guide post 10 is in sliding fit with the inner wall of the sleeve 3 and plays a guiding role for the sleeve 3 during the relative sliding process between the sleeve 3 and the punch 4.

[0026] The end cover 7 is fixed to the top end of the sleeve 3 by screws 11. The top of the punch 4 penetrates through the middle of the end cover 7. A sliding hole that is in sliding fit with the side wall of the punch 4 is arranged in the middle of the end cover 7 to ensure the relative movement of the punch 4 and the sleeve 3.

[0027] The long axis direction of the limit guiding groove 12 is arranged parallel to the axial direction of the sleeve 3. The two ends of the cylindrical pin 13 fixed in the middle of the punch 4 are in sliding fit with the limit guiding groove 12. When the cylindrical pin 13 is located at the top end of the limit guiding groove 12, the sleeve 3 is at the lower limit of the stroke. When the cylindrical pin 13 is located at the bottom end of the limit guiding groove 12, the sleeve 3 is at the upper limit of the stroke. The arrangement of the cylindrical pin 13 plays a role in limiting the relative movement between the sleeve 3 and the punch 4.

[0028] The usage process of the present utility model: As Figure 1 、 Figure 2 shown, the upper limit steel ring 2 is installed on the punch 4 and placed at the top end of the pin shaft 1. The punch 4 and the pin shaft 1 are positioned through the positioning groove 9. At this time, the assembler holds the sleeve 3 with one hand and exerts a downward force. The sleeve 3 and the end cover 7 move downward, the spring 5 is compressed, the front end of the sleeve 3 drives the upper limit steel ring 2 to move downward on the conical surface 6 at the front end of the punch 4, the upper limit steel ring 2 expands, and at the same time the top end of the pin shaft 1 also enters the sleeve 3. The punch 4 continues to move and pushes the steel ring to the clamping groove 14 on the outer side wall of the pin shaft 1. As Figure 3 、 Figure 4As shown, the assembly is completed. At this time, the device is moved away, and the spring 5 drives the steel ring guide post, the punch 4 and the cylindrical pin 13 to reset. When the cylindrical pin 13 moves to the lower limit of the limit guide groove 12, it stops, which is convenient for the next assembly.

Claims

1. A cylinder pin assembly steel ring tooling, characterized in that: It includes a sleeve and a punch, the sleeve is sleeved on the outside of the punch, the sleeve and the punch are slidably matched, a spring is arranged between the sleeve and the punch, and a steel ring installation groove is arranged in the middle of the punch; The spring is arranged outside the punch; the top end of the spring is connected to the end cover at the top end of the sleeve, and the bottom end of the spring is connected to the middle part of the punch; A conical surface is arranged on the outer side of the lower part of the punch; a steel ring installation groove is arranged above the conical surface of the punch, and the width of the punch at the steel ring installation groove is smaller than the width of the upper limit steel ring opening.

2. The cylinder pin assembly steel ring tooling according to claim 1, characterized in that: The bottom end of the punch is provided with a positioning groove matched with the cylinder body.

3. The cylinder pin assembly steel ring tooling according to claim 1, characterized in that: The end cover is fixed to the top end of the sleeve by screws, and a sliding hole which is slidably matched with the side wall of the punch is arranged in the middle of the end cover.

4. The cylinder pin assembly steel ring tooling according to claim 1, characterized in that: A sleeve guide column which is slidably matched with the inner wall of the sleeve is arranged in the middle of the punch.

5. The cylinder pin assembly steel ring tooling according to claim 4, characterized in that: A limiting guide groove is arranged on the middle and lower side wall of the sleeve, the long axis direction of the limiting guide groove is parallel to the central axis direction of the sleeve, a cylindrical pin is arranged in the middle of the punch, the cylindrical pin passes through the sleeve guide column, and the two ends of the cylindrical pin are respectively arranged in the limiting guide groove and slideably cooperate with the limiting guide groove.

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