A ball pin plastic bushing oil injection pre-press assembly device

Abstract

This utility model relates to a ball-end pin plastic bushing oil injection pre-compression assembly device, belonging to the field of plastic bushing assembly technology. The ball-end pin plastic bushing oil injection pre-compression assembly device includes a mounting base, a transverse slide, a lifting cylinder, a workpiece positioning component, an oil injection head, an upper slide, a lower slide, a pressure head, a double-headed clamping cylinder, and clamping claws. The transverse slide is mounted on the mounting base via a transverse guide rail and a transverse cylinder. The workpiece positioning component and the oil injection head are mounted on the mounting base below the transverse slide. The upper slide and lower slide are slidably mounted on the transverse slide via a vertical slide rail. A lifting cylinder is mounted at the top of the transverse slide. The piston rod of the lifting cylinder passes through the upper slide and connects to the lower slide. A pressure head is fixedly mounted at the bottom center of the lower slide. This ball-end pin plastic bushing oil injection pre-compression assembly device has a compact structure and is easy to change, making it particularly suitable for the needs of ball-end pin plastic bushing oil injection pre-compression assembly.

Description

Technical Field

[0001] This utility model relates to an oil injection and pre-compression assembly device for ball head pin plastic bushings, belonging to the field of plastic bushing assembly technology. Background Technology

[0002] In the field of automotive parts manufacturing technology, after the ball joint pin in the automotive steering system is installed on the ball seat, a certain amount of grease needs to be injected into the inside of the plastic bushing before it is pre-pressed onto the ball joint pin. Traditional pre-pressing assembly of plastic bushings is entirely manual, resulting in low assembly efficiency. Currently, pre-pressing assembly of plastic bushings is done mechanically. Existing pre-pressing assembly machinery, such as the pneumatic stamping mechanism published in patent application CN116441390A, can meet the requirements to a certain extent. However, during operation, after the robotic arm places the plastic bushing on the pressure plate, the assembly work is completed under the guidance of the pressure plate's storage holes. Therefore, when this assembly device completes the assembly of a different type of plastic bushing, the pressure plate needs to be replaced, resulting in inconvenience in changing models.

[0003] Therefore, it is necessary to develop a new assembly device to solve the problem of inconvenience in changing the type of the existing ball joint pin plastic bushing oil injection pre-compression method. Summary of the Invention

[0004] The purpose of this utility model is to provide a ball head pin plastic shaft bushing oil injection pre-pressing assembly device with a compact structure and ingenious design, which solves the problem of inconvenient model change in the existing ball head pin plastic shaft bushing oil injection pre-pressing method.

[0005] The technical solution of this utility model is: A ball joint pin plastic bushing oil injection pre-compression assembly device includes a mounting base, a transverse slide, a lifting cylinder, a workpiece positioning component, an oil injection head, an upper slide, a lower slide, a pressure head, a double-headed clamping cylinder, and clamping claws. The device is characterized in that: a transverse slide is mounted on the mounting base via a transverse guide rail and a transverse cylinder; a workpiece positioning component and an oil injection head are mounted on the mounting base below the transverse slide; an upper slide and a lower slide are slidably mounted on the transverse slide via a vertical guide rail; a lifting cylinder is mounted at the top of the transverse slide; the piston rod of the lifting cylinder passes through the upper slide and connects to the lower slide; a pressure head is fixedly mounted at the bottom center of the lower slide; clamping claws are provided on both sides of the pressure head; a double-headed clamping cylinder is mounted at the lower end of the upper slide; the piston rods at both ends of the double-headed clamping cylinder are connected to the corresponding clamping claws.

[0006] The lower slider is symmetrically provided with transverse grooves; the clamping claw is slidably connected to the transverse grooves.

[0007] The mounting base has a transverse opening; a transverse cylinder is mounted on the back of the mounting base; the piston rod of the transverse cylinder is connected to the transverse slide through the transverse opening.

[0008] The clamping claw includes a limiting plate, a vertical rod, and a clamping plate; the vertical rod is slidably mounted on the lower slider through a transverse groove; the upper end of the vertical rod is connected to the piston rod of the double-headed clamping cylinder through the limiting plate; the lower end of the vertical rod is fixedly mounted with a clamping plate; one end of the clamping plate is provided with an arc-shaped clamping opening.

[0009] The width of the limiting plate is greater than the width of the transverse slide groove; the limiting plate and the lower slide block are intermittently in contact.

[0010] The workpiece positioning assembly includes a three-jaw chuck, a support cylinder, and a positioning sleeve; the mounting base is equipped with a three-jaw chuck; the positioning sleeve is clamped on the three-jaw chuck; and the support cylinder is installed inside the three-jaw chuck below the positioning sleeve.

[0011] The upper end of the oil filling head is threaded with an oil filling nozzle; the oil filling nozzle has a stepped rotating structure.

[0012] The advantages of this utility model are: This ball head pin plastic bushing oil injection pre-compression assembly device has a compact structure and is easy to change. It solves the problem of inconvenience in changing the existing ball head pin plastic bushing assembly device when the pressure plate needs to be replaced. It is particularly suitable for the needs of ball head pin plastic bushing oil injection pre-compression assembly. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the isometric structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the structure of this utility model; Figure 4 for Figure 3 Enlarged structural diagram at point A; Figure 5 This is a schematic diagram of the main structure of this utility model; Figure 6 for Figure 5 Schematic diagram of the structure in the middle BB direction; Figure 7 This is a schematic diagram of the workpiece positioning assembly of this utility model; Figure 8 for Figure 1 A magnified structural diagram at point C.

[0014] In the diagram: 1. Mounting base; 2. Horizontal guide rail; 3. Horizontal cylinder; 4. Horizontal slide block; 5. Workpiece positioning assembly; 6. Oil injection head; 7. Vertical slide rail; 8. Upper slide block; 9. Lower slide block; 10. Lifting cylinder; 11. Pressure head; 12. Clamping jaw; 13. Double-headed clamping cylinder; 14. Horizontal slide groove; 15. Horizontal opening; 16. Oil injection nozzle; 17. Limiting plate; 18. Vertical rod; 19. Clamping plate; 20. Arc-shaped clamping opening; 21. Three-jaw chuck; 22. Support cylinder; 23. Positioning sleeve. Detailed Implementation

[0015] The ball joint pin plastic bushing oil injection pre-compression assembly device includes a mounting base 1, a transverse slide 4, a lifting cylinder 10, a workpiece positioning assembly 5, an oil injection head 6, an upper slide block 8, a lower slide block 9, a pressure head 11, a double-headed clamping cylinder 13, and clamping claws 12 (see the instruction manual appendix). Figure 1 , 2 and 3).

[0016] A transverse slide 4 is mounted on the mounting base 1 via a transverse guide rail 2 and a transverse cylinder 3. The mounting base 1 has a transverse opening 15; the transverse cylinder 3 is mounted on the back of the mounting base 1; the piston rod of the transverse cylinder 3 is connected to the transverse slide 4 through the transverse opening 15. When the transverse cylinder 3 is working, it can drive the transverse slide 4 to slide back and forth along the transverse guide rail 2.

[0017] The workpiece positioning assembly 5 and the oil injection head 6 are mounted on the mounting base 1 below the transverse slide 4 (see the instruction manual). Figure 1 and 2 ).

[0018] The workpiece positioning assembly 5 includes a three-jaw chuck 21, a support cylinder 22, and a positioning sleeve 23. The mounting base 1 is equipped with the three-jaw chuck 21; the positioning sleeve 23 is clamped onto the three-jaw chuck 21; the support cylinder 22 is installed inside the three-jaw chuck 21 below the positioning sleeve 23. The three-jaw chuck 21 is an externally purchased component. During operation, the workpiece ball seat can be placed on the positioning sleeve 23, during which the positioning sleeve 23 can position the workpiece ball seat through its positioning inner hole. The purpose of using the three-jaw chuck 21 to assemble the positioning sleeve 23 in this application is to facilitate quick replacement of the positioning sleeve 23, so as to meet the positioning needs of various types of workpiece ball seats.

[0019] The grease injector 6 is an externally purchased component, which can output lubricating grease as required during operation; the upper end of the grease injector 6 is threadedly connected to the grease injector nozzle 16; the grease injector nozzle 16 has a stepped rotating structure (see the instruction manual). Figure 2 During operation, the plastic bushing is inverted and placed on the grease nipple 16, constrained by the stepped surface; thus, the grease output from the grease nipple 6 can be applied to the interior of the plastic bushing. The type of grease nipple 16 can be changed during operation to adapt to various models of plastic bushings.

[0020] The upper slider 8 and the lower slider 9 are slidably mounted on the horizontal slide block 4 via the vertical slide rail 7 (see instruction manual appendix). Figure 1 and 2 When the upper slider 8 and the lower slider 9 are subjected to force, they will slide up and down along the vertical slide rail 7.

[0021] A lifting cylinder 10 is installed at the top of the transverse slide block 4; the piston rod of the lifting cylinder 10 passes through the upper slide block 8 and is connected to the lower slide block 9. When the lifting cylinder 10 moves, it can drive the lower slide block 9 to move up and down.

[0022] A pressure head 11 is fixedly mounted at the center of the bottom end of the lower slider 9; clamping claws 12 are provided on both sides of the pressure head 11. A double-headed clamping cylinder 13 is mounted at the lower end of the upper slider 8 (see the instruction manual appendix). Figure 8 ).

[0023] The piston rods at both ends of the double-headed clamping cylinder 13 are connected to the corresponding clamping claws 12. The lower slider 9 has symmetrically arranged transverse sliding grooves 14 (see the instruction manual appendix). Figure 8 The clamping claw 12 includes a limiting plate 17, a vertical rod 18, and a clamping plate 19. The vertical rod 18 is slidably mounted on the lower slider 9 via a transverse groove 14. The upper end of the vertical rod 18 is connected to the piston rod of the double-headed clamping cylinder 13 via the limiting plate 17. The clamping plate 19 is fixedly mounted on the lower end of the vertical rod 18. One end of the clamping plate 19 is provided with an arc-shaped clamping opening 20. During operation, the clamping plate 19 can clamp the plastic bushing through the arc-shaped clamping opening 20.

[0024] The purpose of setting the transverse slide 14 is to enable the gripper 12 to move up, down, left, and right under the guidance of the transverse slide 14, thereby avoiding the problem of the gripper 12 leaving the running trajectory.

[0025] The width of the limiting plate 17 is greater than the width of the transverse slide 14; the limiting plate 17 and the lower slide 9 are in intermittent contact connection (see the instruction manual appendix). Figure 8 The purpose of setting the limiting plate 17 in this way is to enable the upper slider 8 to contact the lower slider 9 under the action of gravity through the limiting plate 17; thus, when the lifting cylinder 10 drives the lower slider 9 to move up and down, the upper slider 8 can be driven to move up and down synchronously through the limiting plate 17.

[0026] The ball joint pin plastic bushing oil injection pre-loading assembly device operates by controlling the actions of each component according to a program via a CNC system. The CNC system for this ball joint pin plastic bushing oil injection pre-loading assembly device is an existing system.

[0027] When the ball head pin plastic bushing oil injection pre-compression assembly device is working, the ball seat of the workpiece is first placed on the positioning sleeve 23, then the ball head pin of the workpiece is placed inside the ball seat, and the plastic bushing is upside down on the oil injection nozzle 16 of the oil injection head 6.

[0028] After the above work is completed, the grease injection head 6 injects grease into the interior of the plastic bushing; then the transverse cylinder 3 and the lifting cylinder 10 cooperate with each other, and the plastic bushing is clamped by the double-headed clamping cylinder 13 and the clamping claw 12 and transported to the top of the ball joint pin.

[0029] After the plastic bushing is positioned directly above the ball head pin, the lifting cylinder 10 drives the lower slide block 9 to move downwards. When the clamping plate 19 of the clamping jaw 12 contacts the upper edge of the workpiece ball seat, the lifting cylinder 10 drives the lower slide block 9 to continue moving downwards. At this time, the plastic bushing, clamping jaw 12, and upper slide block 8 will maintain a constant relative position with the workpiece ball seat. As the lower slide block 9 continues to move downwards, the pressure head 11 presses the plastic bushing downwards, causing it to move. During this process, the support cylinder 22 actuates to provide support for the ball head pin from the bottom. In this way, the plastic bushing will be pre-pressed onto the ball head pin with the cooperation of the pressure head 11 and the support cylinder 22.

[0030] After the plastic bushing is pre-pressed, the lifting cylinder 10 drives the lower slider 9 and the upper slider 8 to reset, and the pre-pressing assembly device can then enter the next working cycle.

[0031] When changing the type of the pre-compression assembly device, only the positioning sleeve 23 and the oil injection nozzle 16 need to be replaced. There is no need to replace the pressure plate, which has the characteristics of simple and convenient changeover.

[0032] This ball head pin plastic bushing oil injection pre-compression assembly device has a compact structure and is easy to change. It solves the problem of inconvenience in changing the existing ball head pin plastic bushing assembly device when the pressure plate needs to be replaced. It is particularly suitable for the needs of ball head pin plastic bushing oil injection pre-compression assembly.

Claims

1. A ball joint pin plastic bushing oil injection pre-pressing assembly device, comprising a mounting base (1), a transverse slide (4), a lifting cylinder (10), a workpiece positioning assembly (5), an oil injection head (6), an upper slide block (8), a lower slide block (9), a pressure head (11), a double-headed clamping cylinder (13), and clamping claws (12); characterized in that: The mounting base (1) is equipped with a transverse slide block (4) via a transverse guide rail (2) and a transverse cylinder (3); the mounting base (1) below the transverse slide block (4) is equipped with a workpiece positioning assembly (5) and an oil injection head (6); the transverse slide block (4) is slidably mounted with an upper slide block (8) and a lower slide block (9) via a vertical slide rail (7); the top of the transverse slide block (4) is equipped with a lifting cylinder (10); the piston rod of the lifting cylinder (10) passes through the upper slide block (8) and is connected to the lower slide block (9); a pressure head (11) is fixedly mounted in the middle of the bottom end of the lower slide block (9); clamping claws (12) are provided on both sides of the pressure head (11); a double-headed clamping cylinder (13) is mounted at the lower end of the upper slide block (8); the piston rods at both ends of the double-headed clamping cylinder (13) are connected to the corresponding clamping claws (12).

2. The ball head pin plastic bushing oil injection pre-compression assembly device according to claim 1, characterized in that: The lower slider (9) is symmetrically provided with transverse sliding grooves (14); the clamping claw (12) is slidably connected to the transverse sliding grooves (14).

3. The ball head pin plastic bushing oil injection pre-compression assembly device according to claim 2, characterized in that: The clamping claw (12) includes a limiting plate (17), a vertical rod (18), and a clamping plate (19); the vertical rod (18) is slidably mounted on the lower slider (9) through a transverse sliding groove (14); the upper end of the vertical rod (18) is connected to the piston rod of the double-headed clamping cylinder (13) through the limiting plate (17); the lower end of the vertical rod (18) is fixedly mounted with a clamping plate (19); one end of the clamping plate (19) is provided with an arc-shaped clamping opening (20).

4. The ball head pin plastic bushing oil injection pre-compression assembly device according to claim 3, characterized in that: The width of the limiting plate (17) is greater than the width of the transverse slide (14); the limiting plate (17) and the lower slide (9) are intermittently contacted.

5. The ball head pin plastic bushing oil injection pre-compression assembly device according to claim 1, characterized in that: The mounting base (1) is provided with a transverse opening (15); a transverse cylinder (3) is installed on the back of the mounting base (1); the piston rod of the transverse cylinder (3) is connected to the transverse slide (4) through the transverse opening (15).

6. The ball head pin plastic bushing oil injection pre-compression assembly device according to claim 1, characterized in that: The workpiece positioning assembly (5) includes a three-jaw chuck (21), a support cylinder (22) and a positioning sleeve (23); the mounting base (1) is equipped with a three-jaw chuck (21); the positioning sleeve (23) is clamped on the three-jaw chuck (21); the support cylinder (22) is installed inside the three-jaw chuck (21) below the positioning sleeve (23).

7. The ball head pin plastic bushing oil injection pre-compression assembly device according to claim 1, characterized in that: The upper end of the oil injection head (6) is threaded with an oil injection nozzle (16); the oil injection nozzle (16) has a stepped rotating structure.

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