Swash plate assembly press pin tool

By designing a swashplate assembly pin-pressing fixture and adopting a guiding and buffering structure, the problems of easily damaging the pin hole and unstable depth in the pin-pressing mechanism were solved, thus achieving pin-pressing accuracy and stability.

CN224526429UActive Publication Date: 2026-07-21SHANDONG HUICHUAN PRECISION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG HUICHUAN PRECISION TECHNOLOGY CO LTD
Filing Date
2025-08-20
Publication Date
2026-07-21

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    Figure CN224526429U_ABST
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Abstract

The utility model provides a kind of swash plate assembly press pin tool, belong to machining technical field.Its structure includes: fixedly connected with several stand on bottom plate, fixedly connected with the pressure rod guide plate on several stand, fixedly connected with spring cover on the pressure rod guide plate, pressure rod is passed through spring cover and pressure rod guide plate, fixedly connected with stroke limit block on pressure rod, spring is connected between stroke limit block and spring cover, fixedly connected with positioning block on bottom plate, positioning block is below pressure rod, rotary oil cylinder is equipped on positioning block, spring pin is equipped on rotary oil cylinder.This tool is used, swash plate assembly is placed on positioning block, rotary oil cylinder holds workpiece, spring pin is placed into pin hole, press machine exerts pressure to spring pin and press fits in place.In this tool, pressure rod is not directly connected with press machine, pressure rod is directly placed into pin hole by guide plate, avoid the phenomenon that pressure rod injures pin hole, and press pin depth is more stable.
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Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically to a swashplate assembly pressing pin tooling. Background Technology

[0002] The swashplate assembly is an essential component of a swashplate axial piston pump. During the machining of the swashplate assembly, a spring pin needs to be pressed into place. This pressing process involves using a press to apply pressure to the nut and force the spring pin into position. In existing technology, the pressure rod is directly connected to the press, lacking a guiding and buffering structure. Therefore, even slight misalignment of the pressure rod can damage the pin hole, and the pressing depth is also unstable. Summary of the Invention

[0003] This utility model aims to address the technical deficiencies of existing technologies by providing a pin-pressing fixture for swashplate components, thereby solving the technical problems of conventional pin-pressing mechanisms used for swashplate components easily damaging the pin holes and having unstable pin-pressing depth.

[0004] To achieve the above technical objectives, the present invention adopts the following technical solution: The swashplate assembly clamping fixture includes a base plate, columns, a pressure rod guide plate, a spring sleeve, a pressure rod, a stroke limit block, a spring, a positioning block, a rotary cylinder, and a spring pin. Several columns are fixedly connected to the base plate, and a pressure rod guide plate is fixedly connected to each column. A spring sleeve is fixedly connected to the pressure rod guide plate. The pressure rod passes through the spring sleeve and the pressure rod guide plate. A stroke limit block is fixedly connected to the pressure rod, and a spring connects the stroke limit block and the spring sleeve. A positioning block is fixedly connected to the base plate, located below the pressure rod. A rotary cylinder is mounted on the positioning block, and a spring pin is mounted on the rotary cylinder.

[0005] Preferably, there are four columns, the base plate is in the shape of a cuboid, and the four columns are located at the four corners of the cuboid shape.

[0006] Preferably, the swash plate assembly is located on the positioning block, and the rotating hydraulic cylinder holds the swash plate assembly.

[0007] Preferably, a nut is connected to the top of the pressure bar, and an external press applies pressure to the nut.

[0008] In the above technical solution, the base plate serves as the foundation bearing element; the column supports the pressure rod guide plate; the pressure rod guide plate allows the pressure rod to slide through, thus guiding and restricting the vertical movement of the pressure rod and preventing radial deviation; the spring sleeve houses the spring; the pressure rod is subjected to pressure applied by the press and performs the pressing pin action; the stroke limit block on the pressure rod serves as the force point at the upper end of the spring; the spring located between the stroke limit block and the spring sleeve provides elastic buffering for the movement of the pressure rod; the positioning block supports the swashplate assembly; the rotary cylinder holds the swashplate assembly; and the spring pin is the component being installed.

[0009] This utility model provides a swashplate assembly pin pressing fixture. In use, the swashplate assembly is placed on the positioning block, a rotating hydraulic cylinder holds the workpiece, and the spring pin is placed into the pin hole. The press applies pressure to the nut to press the spring pin into place. In this fixture, the pressure rod is not directly connected to the press; instead, a guide plate guides the pressure rod directly into the pin hole, avoiding damage to the pin hole by the pressure rod and ensuring a more stable pin pressing depth. Attached Figure Description

[0010] Figure 1 This is a structural diagram of the present invention; In the picture: Detailed Implementation

[0011] The specific embodiments of this utility model will be described in detail below. To avoid excessive and unnecessary details, well-known structures or functions will not be described in detail in the following embodiments. The approximate language used in the following embodiments can be used for quantitative descriptions, indicating that a certain degree of variation in quantity is permissible without changing the basic function. Unless otherwise defined, the technical and scientific terms used in the following embodiments have the same meaning as commonly understood by those skilled in the art to which this utility model pertains.

[0012] Example 1 Swashplate assembly clamping tooling, such as Figure 1 As shown, the system includes a base plate 1, columns 2, a pressure rod guide plate 3, a spring sleeve 4, a pressure rod 5, a stroke limit block 6, a spring 7, a positioning block 8, a rotary cylinder 9, and a spring pin 10. Several columns 2 are fixedly connected to the base plate 1, and pressure rod guide plates 3 are fixedly connected to the columns 2. Spring sleeves 4 are fixedly connected to the pressure rod guide plates 3. The pressure rod 5 passes through the spring sleeve 4 and the pressure rod guide plate 3. A stroke limit block 6 is fixedly connected to the pressure rod 5, and a spring 7 connects the stroke limit block 6 and the spring sleeve 4. A positioning block 8 is fixedly connected to the base plate 1, located below the pressure rod 5. A rotary cylinder 9 is mounted on the positioning block 8, and a spring pin 10 is mounted on the rotary cylinder 9.

[0013] In the above technical solution, the base plate 1 serves as the foundation bearing; the column 2 supports the pressure rod guide plate 3; the pressure rod guide plate 3 allows the pressure rod 5 to slide through, thereby guiding and restricting the vertical movement of the pressure rod 5 and preventing radial deviation; the spring sleeve 4 is used to set the spring 7; the pressure rod 5 is subjected to the pressure applied by the press and performs the pressing pin action; the stroke limit block 6 on the pressure rod 5 serves as the force point at the upper end of the spring 7; the spring 7 located between the stroke limit block 6 and the spring sleeve 4 provides elastic buffering for the movement of the pressure rod 5; the positioning block 8 supports the swashplate assembly 11; the rotary cylinder 9 holds the swashplate assembly 11; and the spring pin 10 is the component to be installed.

[0014] Example 2 Swashplate assembly clamping tooling, such as Figure 1 As shown, the assembly includes a base plate 1, columns 2, a pressure rod guide plate 3, a spring sleeve 4, a pressure rod 5, a stroke limit block 6, a spring 7, a positioning block 8, a rotary cylinder 9, and a spring pin 10. Several columns 2 are fixedly connected to the base plate 1, and the pressure rod guide plate 3 is fixedly connected to each column 2. A spring sleeve 4 is fixedly connected to the pressure rod guide plate 3. The pressure rod 5 passes through the spring sleeve 4 and the pressure rod guide plate 3. The stroke limit block 6 is fixedly connected to the pressure rod 5, and a spring 7 connects the stroke limit block 6 and the spring sleeve 4. A positioning block 8 is fixedly connected to the base plate 1, located below the pressure rod 5. A rotary cylinder 9 is mounted on the positioning block 8, and a spring pin 10 is mounted on the rotary cylinder 9. There are four columns 2, and the base plate 1 is rectangular. The four columns 2 are located at the four corners of the rectangular shape. A swashplate assembly 11 is located on the positioning block 8, and the rotary cylinder 9 holds the swashplate assembly 11. A nut 12 is connected to the top of the pressure rod 5, and an external press applies pressure to the nut 12.

[0015] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the scope of this utility model application should be included within the protection scope of this utility model.

Claims

1. A swashplate assembly pressing pin fixture, characterized in that... The system includes a base plate (1), columns (2), a pressure rod guide plate (3), a spring sleeve (4), a pressure rod (5), a stroke limit block (6), a spring (7), a positioning block (8), a rotary cylinder (9), and a spring pin (10). Several columns (2) are fixedly connected to the base plate (1), a pressure rod guide plate (3) is fixedly connected to the columns (2), a spring sleeve (4) is fixedly connected to the pressure rod guide plate (3), the pressure rod (5) passes through the spring sleeve (4) and the pressure rod guide plate (3), a stroke limit block (6) is fixedly connected to the pressure rod (5), a spring (7) is connected between the stroke limit block (6) and the spring sleeve (4), a positioning block (8) is fixedly connected to the base plate (1), the positioning block (8) is located below the pressure rod (5), a rotary cylinder (9) is provided on the positioning block (8), and a spring pin (10) is provided on the rotary cylinder (9).

2. The swashplate assembly pressing pin fixture according to claim 1, characterized in that, There are four columns (2), the base plate (1) is in the shape of a cuboid, and the four columns (2) are located at the four corners of the cuboid shape.

3. The swashplate assembly pressing pin fixture according to claim 1, characterized in that, The swash plate assembly (11) is located on the positioning block (8), and the rotating cylinder (9) presses the swash plate assembly (11).

4. The swashplate assembly pressing pin fixture according to claim 1, characterized in that, A nut (12) is connected to the top of the pressure bar (5), and an external press applies pressure to the nut (12).