Sliding shoe closing-up fixing device for plunger production

By designing the positioning components and utilizing a combination of magnetic plates, motor-driven clamping rods, and cylinder clamping plates, the misalignment problem during the assembly of the plunger rod and the slipper was solved, thereby improving the clamping accuracy and yield of the slipper.

CN224115015UActive Publication Date: 2026-04-14CHANGZHOU CHIXIN MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The plunger rod and slide shoe are prone to misalignment during assembly, which can cause the slide shoe end to bend and fail, reducing the yield rate.

Method used

The system employs a positioning assembly, including a magnetic plate and clamping rods. The magnetic plate secures the sliding shoe, while the motor drives the clamping rods and cylinders to clamp the plunger rod from four directions, ensuring that the sliding shoe and plunger rod remain completely vertical.

Benefits of technology

This improved the bending accuracy of the skates and increased the yield rate.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224115015U_ABST
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Abstract

The utility model relates to a piston shoe closing fixing device for plunger production, which comprises a workbench and a positioning assembly arranged on the workbench, the positioning assembly comprises a magnetic plate and a clamping rod, the magnetic plate is fixedly arranged on the surface of the workbench, the magnetic plate is in a U shape, and the clamping rod is arranged on the magnetic plate. The arc-shaped edge of the magnetic plate is fixedly connected with the table top of the working table, a certain distance exists between the magnetic plate and the table top of the working table, clamping rods are movably installed on the two sides of the magnetic plate, two motors are symmetrically and fixedly installed on the table top of the working table, and the clamping rods are fixedly installed at the ends of output shafts of the motors. And the clamping rod is parallel to the axis of the output shaft of the motor. An arc-shaped bent plate is fixedly installed on the arc-shaped edge of the magnetic plate, and the bottom end of the arc-shaped bent plate is fixedly connected with the table top of the workbench. The piston shoe and the plunger rod are kept in a completely vertical state, the clamping and bending precision of the piston shoe is improved, and the yield is increased.
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Description

Technical Field

[0001] This utility model relates to the field of plunger rod technology, and in particular to a slipper end fixing device for plunger production. Background Technology

[0002] The integral oil pump plunger consists of a slipper and a plunger rod. The slipper is fitted onto the outside of the plunger rod ball head. On the production line, the operator places the bottom of the slipper on a flat surface, and then two clamping fixtures bend the slipper port from two directions, so that the outer wall of the slipper port fits into the outer wall of the ball head, thus completing the assembly of the oil pump plunger.

[0003] Since the plunger rod and the slipper are only nested together, when the slipper is placed on a flat surface, the plunger rod is not supported. Usually, the operator holds the plunger rod by hand or uses a thrusting tool such as a cylinder to press the plunger rod against the baffle on the production line and fix the plunger rod from one direction. This makes the positional relationship between the plunger rod and the slipper not completely vertical. When clamping the end of the slipper, the end may come into contact with the connection of the ball joint, causing the end of the slipper to bend and fail, thus reducing the yield rate. Utility Model Content

[0004] The purpose of this application is to provide a slipper end fixing device for plunger production, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A plunger production slipper closing and fixing device includes a worktable and a positioning assembly mounted on the worktable. The positioning assembly includes a magnetic plate and clamping rods. The magnetic plate, which is U-shaped, is fixedly mounted on the worktable surface. The arc-shaped edge of the magnetic plate is fixedly connected to the worktable surface, and there is a certain distance between the magnetic plate and the worktable surface. Clamping rods are movably mounted on both sides of the magnetic plate. Two motors are symmetrically fixedly mounted on the worktable surface. Clamping rods are fixedly mounted on the output shaft ends of the motors, and the clamping rods are parallel to the axis of the motor output shaft. An arc-shaped bent plate is fixedly mounted on the arc-shaped edge of the magnetic plate, and the bottom end of the arc-shaped bent plate is fixedly connected to the worktable surface. The opening of the magnetic plate faces one of the motors.

[0007] Preferably, a fixing plate is fixedly installed on the workbench surface, and the fixing plate has a mounting groove. A column is fixedly installed at each end of the workbench surface, and the fixing plate is fixedly installed on the top of the column. The mounting groove is located directly above the magnetic plate, and clamping plates are symmetrically arranged on both sides of the mounting groove. The clamping plates are movably installed on the surface of the fixing plate. Cylinders are symmetrically fixedly installed on both sides of the fixing plate, and the output ends of the cylinders are fixedly connected to the clamping plates. The two motors are installed between the two cylinders, and the axis of the motor output shaft is parallel to the axis of the cylinder extension shaft.

[0008] The beneficial effects of this utility model are: by setting a positioning component, the slipper and the plunger rod are kept in a completely vertical state, which improves the bending accuracy of the slipper and increases the yield rate. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0010] Figure 2 This is a schematic diagram of the installation structure of the magnetic plate and the motor in this utility model;

[0011] Figure 3 This is a schematic diagram of the working state of machining the plunger rod on the worktable in this utility model.

[0012] In the diagram: 1. Workbench; 2. Motor; 3. Clamping rod; 4. Fixing plate; 5. Cylinder; 6. Clamping plate; 7. Mounting slot; 8. Magnetic plate. Detailed Implementation

[0013] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.

[0014] like Figure 1-3The illustrated plunger production slipper closing and fixing device includes a worktable 1 and a positioning assembly mounted on the worktable 1. The positioning assembly includes a magnetic plate 8 and clamping rods 3. The magnetic plate 8, which is U-shaped, is fixedly mounted on the surface of the worktable 1. The arc-shaped edge of the magnetic plate 8 is fixedly connected to the surface of the worktable 1, and there is a certain distance between the magnetic plate 8 and the surface of the worktable 1. Clamping rods 3 are movably mounted on both sides of the magnetic plate 8. Two motors 2 are symmetrically fixedly mounted on the surface of the worktable 1. Clamping rods 3 are fixedly mounted on the output shaft ends of the motors 2, and the clamping rods 3 are arranged parallel to the axis of the output shaft of the motors 2. An arc-shaped curved plate is fixedly mounted on the arc-shaped edge of the magnetic plate 8, and the bottom end of the arc-shaped curved plate is fixedly connected to the surface of the worktable 1. The opening of the magnetic plate 8 faces one of the motors 2.

[0015] A fixing plate 4 is fixedly installed on the surface of the workbench 1. The fixing plate 4 has a mounting groove 7. Columns are fixedly installed at the ends of the workbench 1, and the fixing plate 4 is fixedly installed on the top of each column. The mounting groove 7 is located directly above the magnetic plate 8. Clamping plates 6 are symmetrically arranged on both sides of the mounting groove 7, and the clamping plates 6 are movably installed on the surface of the fixing plate 4. Cylinders 5 are symmetrically fixedly installed on both sides of the fixing plate 4. The output ends of the cylinders 5 are fixedly connected to the clamping plates 6. Two motors 2 are installed between the two cylinders 5, and the axis of the output shaft of the motor 2 is parallel to the axis of the telescopic shaft of the cylinder 5.

[0016] Example: The magnetic plate 8 on the workbench 1 is located between the two closing fixtures of the plunger production line. The two closing fixtures are combined to bend the outer wall of the end of the slipper, which is then fitted to the outer wall of the ball end of the plunger rod. The slipper at the end of the plunger rod passes through the mounting groove 7 of the fixing plate 4 and is placed on the table surface of the workbench 1. Then it slides into the magnetic plate 8. The two motors 2 are started, driving the two clamping rods 3 to clamp the outer wall of the plunger rod. The motors 2 rotate at the same angle, so the plunger rod is fixed at the center position of the two clamping rods 3. Then the cylinder 5 is started, driving the clamping plates 6 to clamp the plunger rod from the other two sides. The cylinders 5 extend to the same length, so the plunger rod is fixed at the center position of the two clamping plates 6. The two clamping rods 3 and the two clamping plates 6 clamp the plunger rod from four directions and adjust the position of the plunger rod to ensure that the axis of the plunger rod is completely collinear with the axis of the slipper, increasing the accuracy of the slipper processing.

[0017] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.

[0018] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A plunger production slipper closing and fixing device, comprising a worktable (1) and a positioning assembly mounted on the worktable (1), characterized in that: The positioning component includes a magnetic plate (8) and clamping rods (3). The magnetic plate (8) is fixedly installed on the table surface of the workbench (1). The magnetic plate (8) is U-shaped. The arc edge of the magnetic plate (8) is fixedly connected to the table surface of the workbench (1). There is a certain distance between the magnetic plate (8) and the table surface of the workbench (1). Clamping rods (3) are movably installed on both sides of the magnetic plate (8). Two motors (2) are symmetrically fixedly installed on the table surface of the workbench (1). The output shaft end of the motor (2) is fixedly installed with clamping rods (3). The clamping rods (3) are parallel to the axis of the output shaft of the motor (2).

2. The plunger production slipper closing and fixing device according to claim 1, characterized in that: An arc-shaped curved plate is fixedly installed at the arc-shaped edge of the magnetic plate (8), and the bottom end of the arc-shaped curved plate is fixedly connected to the table surface of the workbench (1). The opening of the magnetic plate (8) faces one of the motors (2).

3. The plunger production slipper closing and fixing device according to claim 1, characterized in that: A fixing plate (4) is fixedly installed on the table surface of the workbench (1). An installation groove (7) is provided on the surface of the fixing plate (4). A column is fixedly installed at the end of the table surface of the workbench (1). The fixing plate (4) is fixedly installed on the top of the column.

4. The plunger production slipper closing and fixing device according to claim 3, characterized in that: The mounting groove (7) is located directly above the magnetic plate (8). Clamping plates (6) are symmetrically arranged on both sides of the mounting groove (7). The clamping plates (6) are movably mounted on the surface of the fixing plate (4).

5. The plunger production slipper closing and fixing device according to claim 4, characterized in that: Cylinders (5) are symmetrically fixed on both sides of the fixed plate (4). The output end of the cylinder (5) is fixedly connected to the clamping plate (6). The two motors (2) are installed between the two cylinders (5). The axis of the output shaft of the motor (2) is parallel to the axis of the telescopic shaft of the cylinder (5).