A door handle front rocker torsion spring pin shaft assembly mechanism

Abstract

This utility model relates to the field of automotive parts assembly, and discloses an assembly mechanism for a torsion spring pin of a front rocker arm of a car door handle. It includes a base and a fixed seat fixed thereon. The fixed seat has a receiving groove for positioning and placing the torsion spring and an adjusting rod. The two ends of the receiving groove are concave arc shapes that limit the translation of the torsion spring. One side of the receiving groove is provided with an inclined groove for positioning and abutting the adjusting end of the adjusting rod. Clamping members are movably arranged on both sides of the fixed seat. When the clamping members are relatively close, they are used to restrict the rotation of the torsion spring body. A pressing member is movably arranged on the side of the fixed seat near the inclined groove. When the pressing member is close to the fixed seat, it is used to press the torsion spring arm located on one side of the inclined groove towards the side away from the inclined groove. A pressing member is movably arranged on the side of the fixed seat away from the inclined groove. When the pressing member is close to the fixed seat, it presses against the upper end of the torsion spring arm. This significantly improves assembly efficiency and assembly safety.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts assembly, and in particular to a door handle front rocker arm torsion spring pin assembly mechanism. Background Technology

[0002] The structure of the front rocker arm assembly of the car door handle is as follows Figures 1-2 As shown, it includes a front rocker arm 1, an adjusting rod 2, a torsion spring 4, and a pin 3. The adjusting rod and the front rocker arm are rotatably connected by the pin and elastically supported by the torsion spring. As the adjusting rod is moved, the front rocker arm can rotate around its fulcrum.

[0003] The above four components are mostly assembled manually. During assembly, the torsion spring is difficult to position and manual force is required to overcome the torsion of the torsion spring. The assembly is very laborious and can easily injure the hands. Therefore, there are problems such as low safety and low assembly efficiency. Utility Model Content

[0004] This invention addresses the drawbacks of manual assembly of torsion springs, namely low assembly efficiency and the risk of hand injury, by providing a door handle front rocker arm torsion spring pin assembly mechanism that is safe for hands and improves assembly efficiency.

[0005] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method: A door handle front rocker arm torsion spring pin assembly mechanism includes a base and a fixed seat fixed thereon. The fixed seat has a receiving groove for positioning and placing the torsion spring and the adjusting rod. The two ends of the receiving groove are concave arc shapes that limit the translation of the torsion spring. One side of the receiving groove is provided with an inclined groove for positioning and abutting the adjusting end of the adjusting rod. Clamping members are movably arranged on both sides of the fixed seat. When the clamping members are relatively close, they are used to restrict the rotation of the torsion spring body. A pressing member is movably arranged on the side of the fixed seat near the inclined groove. When the pressing member is close to the fixed seat, it is used to press the torsion spring torsion arm located on one side of the inclined groove to the side away from the inclined groove. A pressing member is movably arranged on the side of the fixed seat away from the inclined groove. When the pressing member is close to the fixed seat, it presses against the upper end of the torsion spring torsion arm.

[0006] Using the above solution, a fixed base is set up to position the assembled torsion spring and adjusting rod. The clamping component can hold the torsion spring body to prevent it from twisting. The movement of the squeezing component can directly apply force to the torsion arm of the torsion spring to make it flip. The movement of the pressing component presses against the flipped torsion arm to prevent it from returning to its original position. Afterwards, only the front rocker arm needs to be placed and the pin inserted to complete the assembly. This mechanism will not cause hand injury, and the assembly is more labor-saving and faster, and the assembly efficiency can be significantly improved.

[0007] Preferably, the movement of the clamping member, the squeezing member, and the pressing member is each controlled by an independent translation drive.

[0008] Using the above solution, the torsion and limiting of the torsion spring are all automatically achieved, resulting in greater efficiency.

[0009] Preferably, a pin assembly module is provided at one end of the fixed base outside the receiving groove. The pin assembly module includes a pin positioning seat fixed on the base. The pin positioning seat has a guide groove that mates with the receiving groove and is used to guide the movement of the pin. A push rod is provided at the end of the guide groove away from the receiving groove to push the pin into the receiving groove to achieve assembly.

[0010] Using the above solution, the pin can be quickly pushed into the receiving slot to achieve assembly simply by moving the push rod, which can further improve assembly efficiency.

[0011] Preferably, the pin positioning seat has a guide hole at the end of the guide groove away from the receiving groove, which allows the push rod to be guided into the guide groove.

[0012] Using the above scheme, the pin and the guide hole are guided and inserted together. The movement of the pin can accurately apply force to the pin in the guide groove, ensuring that the pin is quickly guided into the receiving groove to achieve assembly.

[0013] Preferably, one end of the push rod is fixed to an assembly block, the assembly block is guided and slid on the base, and a pusher cylinder is provided on the base to drive the assembly block to move. As the pusher cylinder extends and retracts, the push rod is always inserted and engaged with the guide hole.

[0014] Using the above scheme, the pusher cylinder drives the mating block to move back and forth when it extends and retracts, thereby realizing the reciprocating movement of the push rod. This design can realize the automatic assembly of the pin shaft and further improve the assembly efficiency.

[0015] Preferably, a robotic arm is provided on the base for gripping the front rocker arm and placing the front rocker arm in the assembly position corresponding to the receiving slot.

[0016] Using the above solution, the robotic arm is used to automatically assemble the front rocker arm, further improving assembly efficiency.

[0017] Preferably, a positioning and loading seat is provided on the fixed base for positioning and placing the front rocker arm for gripping by the robotic arm.

[0018] Using the above scheme, the positioning and loading seat is used to position and place the front rocker arm, ensuring that the angle of the front rocker arm is consistent each time the robotic arm grips it.

[0019] Preferably, the robotic arm includes a gripper cylinder for gripping a workpiece, and a positioning cover is provided on the cylinder body of the gripper cylinder, the bottom of which fits against the upper end of the front rocker arm. The positioning cover has clearance grooves on both sides for the gripper of the gripper cylinder to pass through.

[0020] By adopting the above solution, a positioning cover is installed on the gripper cylinder. As the robotic arm descends, the positioning cover first positions itself on the product, and then the gripper clamps it, ensuring that the front rocker arm clamps and transfers the product at a preset angle.

[0021] Preferably, the positioning and loading seat and the fixed seat are staggered, the robotic arm is a dual-coordinate robotic arm that moves in both the horizontal and vertical directions perpendicular to the pin insertion direction, and the base is moved and set on the worktable along the pin insertion direction.

[0022] This utility model, by adopting the above technical solutions, has significant technical effects: a fixed base is provided for positioning and placing the assembled torsion spring and adjusting rod; a clamping component is provided for automatically clamping the torsion spring body to prevent it from twisting; a pressing component is provided for applying force to the torsion arm of the torsion spring and causing it to flip; a pressing component is provided for pressing the flipped torsion arm and preventing it from returning to its original position; a robotic arm is provided for automatically grasping the front rocker arm and placing it in the corresponding mounting position on the fixed base; a push rod is provided for automatically inserting and assembling the pin. This mechanism can automatically assemble the four parts in the front rocker arm assembly, making assembly fast and safe, and significantly improving assembly efficiency. Attached Figure Description

[0023] Figure 1 This is an isometric view of the assembled front rocker arm assembly in this embodiment; Figure 2 This is an exploded view of the front rocker arm assembly in this embodiment; Figure 3 This is an isometric view of a door handle front rocker arm torsion spring pin assembly mechanism in this embodiment when the robotic arm is removed; Figure 4 yes Figure 3 A magnified view of A; Figure 5 yes Figure 4 A diagram showing the placement of the pin, torsion spring, and adjusting rod; Figure 6 This is an isometric view of a door handle front rocker arm torsion spring pin assembly mechanism according to this embodiment.

[0024] The parts referred to by the numbers in the above attached figures are as follows: 1. Front rocker arm; 2. Adjusting rod; 3. Pin; 4. Torsion spring; 41. Torsion arm; 5. Base; 6. Fixed seat; 61. Receiving groove; 62. Inclined groove; 7. Clamping component; 8. Extruding component; 9. Pressing component; 10. Pin positioning seat; 1001. Guide groove; 11. Positioning and loading seat; 12. Push rod; 13. Assembly block; 14. Pushing cylinder; 15. Moving seat cylinder; 16. Gripper cylinder; 161. Gripper; 17. Positioning cover; 18. Lifting cylinder; 19. Translation cylinder. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0026] A door handle front rocker arm torsion spring pin assembly mechanism includes a basic positioning module, a torsion spring limiting and deformation module, a front rocker arm transport module, and a pin assembly module.

[0027] Reference Figures 3-4 As shown, the basic positioning module includes a base 5 and a fixing seat 6.

[0028] The base 5 can move on the worktable along the assembly direction of the pin 3. The worktable is not shown. The movement of the base 5 is controlled by the drive of the shift cylinder 15. The shift cylinder 15 is a rodless cylinder. The slider of the rodless cylinder is fixedly connected to the bottom of the base 5.

[0029] The fixed base 6 is fixed on the base 5 and is the core positioning component. It has a receiving groove 61 on its top for positioning and placing the torsion spring 4 and the adjusting rod 2. The two ends of the receiving groove 61 are designed to be concave arc-shaped to limit the translation of the torsion spring 4 in the horizontal direction. A sloping groove 62 is provided on one side of the receiving groove 61 for the adjusting end of the adjusting rod 2 to be positioned and abutted to ensure that the angle of the adjusting rod 2 is fixed.

[0030] Reference Figures 4-5 As shown, the torsion spring limiting and deformation module includes a clamping component 7, a pressing component 8, and a pressing component 9. All three are guided and moved on the base 5 by a guide rail slider assembly, and their movement is controlled by an independent translation drive component, which is a cylinder.

[0031] There are two clamping parts 7. When the two clamping parts 7 are close to each other, they can clamp the main body of the torsion spring 4, restrict its rotation, and provide a stable foundation for the subsequent deformation of the torsion arm 41.

[0032] The extrusion member 8 is located on the side of the fixed seat 6 near the inclined groove 62. When the extrusion member 8 moves towards the fixed seat 6, it can directly act on the torsion arm 41 of the torsion spring 4 located on the side of the inclined groove 62, pressing it to the side away from the inclined groove 62, thereby achieving the pre-deformation of the torsion arm 41. See Figure 5 for details.

[0033] The pressing member 9 is located on the side of the fixed seat 6 away from the inclined groove 62. After the pressing member 8 completes the deformation of the torsion arm 41, the pressing member 9 moves towards the fixed seat 6 and presses against the upper end of the deformed torsion spring 4 torsion arm 41 to prevent the torsion arm 41 from resetting and to provide a stable state for subsequent assembly. See Figure 5 for details.

[0034] Reference Figures 3-5 As shown, the pin assembly module includes a pin positioning seat 10 fixed to one end of the fixed seat 6, with a guide groove 1001 on its top. The guide groove 1001 is connected to the receiving groove 61 for guiding the movement of the pin 3. The end of the guide groove 1001 away from the receiving groove 61 is provided with a guide hole for the push rod 12 to be guided and inserted.

[0035] One end of the push rod 12 is fixed to an assembly block 13, which slides on the base 5 via a guide rail. The base 5 is equipped with a push cylinder 14, the output end of which is connected to the assembly block 13. When the push cylinder 14 extends or retracts, the assembly block 13 drives the push rod 12 to move back and forth along the guide hole. The push rod 12 is always engaged with the guide hole, which can accurately push the pin 3 in the guide groove 1001 into the receiving groove 61 to complete the assembly of the pin 3.

[0036] Reference Figure 3 as well as Figure 6 As shown, the front rocker arm handling module includes a robotic arm and a positioning and loading seat 11. The positioning and loading seat 11 is fixed next to the fixed seat 6 and is offset from the fixed seat 6. It is used to position and place the front rocker arm 1 to ensure that the angle of the front rocker arm 1 is consistent each time the robotic arm grips it, thus ensuring the accuracy of subsequent assembly.

[0037] The robotic arm is a dual-axis robotic arm, consisting of a moving component and a gripper. The moving component includes a translation cylinder 19 and a lifting cylinder 18. The gripper is a gripper cylinder 16 mounted on the bottom of the lifting cylinder 18. The translation cylinder 19 is a rodless cylinder, mounted on a frame that is fixed to a worktable. Figure 6 As shown in the diagram, the gripper cylinder 16 can move horizontally and vertically along the insertion direction perpendicular to the pin shaft 3, driven by the translation cylinder 19 and the lifting cylinder 18. A positioning cover 17 is fixed to the lower end of the cylinder body of the gripper cylinder 16, and a gripper 161 is provided at the output end of the gripper cylinder 16. The bottom of the positioning cover 17 can fit against the upper end of the front rocker arm 1, and the clearance grooves provided on both sides allow the gripper 161 to pass through. When the robotic arm descends, the positioning cover 17 first fits against the front rocker arm 1 for positioning, and then is clamped by the gripper 161 to ensure that the front rocker arm 1 is transferred at a preset angle.

[0038] All of the aforementioned cylinders are connected to the controller, and switching is achieved through the controller's existing logic programming.

[0039] The automated operation process of the door handle front rocker arm torsion spring pin assembly mechanism is as follows: 1. Initial positioning: The torsion spring 4 and the adjusting rod 2 are placed in the receiving groove 61 of the fixed seat 6 by manual or automatic feeding equipment. The adjusting end of the adjusting rod 2 abuts against the inclined groove 62, and the two ends of the torsion spring 4 are limited by the concave arc of the receiving groove 61.

[0040] 2. Fixing and Deformation of Torsion Spring 4: First, the clamping members 7 on both sides of the fixed seat 6 move closer together under the drive of the translational drive, clamping the main body of the torsion spring 4 and restricting its rotation; second, the pressing member 8 moves toward the fixed seat 6, pressing the torsion arm 41 of the torsion spring 4 on the inclined groove 62 to the other side, completing the pre-deformation of the torsion arm 41; then, the pressing member 9 moves toward the fixed seat 6, pressing against the upper end of the deformed torsion arm 41 to prevent it from returning to its original position.

[0041] 3. Handling and placing of front rocker arm 1: First, the gripper cylinder 16 of the robotic arm moves to above the positioning and loading seat 11 under the drive of the translation cylinder 19 and the lifting cylinder 18; second, the robotic arm descends, and the positioning cover 17 first fits and positions itself against the upper end of the front rocker arm 1 on the positioning and loading seat 11, and then the gripper 161 clamps the front rocker arm 1 through the clearance groove; next, the base 5 moves to adjust the position of the fixed seat 6; further, the robotic arm translates and drives the front rocker arm 1 to the corresponding assembly position of the receiving groove 61, and finally descends to place the front rocker arm 1 in place.

[0042] 4. Pin 3 assembly: First, the pin 3 is pre-placed in the guide groove 1001 of the pin positioning seat 10; second, the pusher cylinder 14 extends, driving the assembly block 13 and the push rod 12 to move along the guide hole, and the push rod 12 pushes the pin 3 in the guide groove 1001 into the receiving groove 61, passing through the corresponding holes of the front rocker arm 1 and the adjusting rod 2, thus completing the assembly of the pin 3.

[0043] 5. Reset and Cycle: Clamping component 7, pressing component 8, pressing component 9, push rod 12, and robotic arm are reset. Base 5 moves to the initial position along the insertion direction of pin 3, waiting for the next assembly cycle.

[0044] Through the coordinated action of the above modules, the mechanism can achieve fully automated assembly of the front rocker arm assembly of the door handle, eliminating the need for manual contact with parts such as the torsion spring 4 that are prone to hand injuries, thus significantly improving assembly efficiency and safety.

[0045] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A vehicle door handle front rocker torsion spring pin axle assembly, characterized by: The system includes a base (5) and a mounting base (6) fixed thereon. The mounting base (6) has a receiving groove (61) for positioning and placing the torsion spring (4) and the adjusting rod (2). The two ends of the receiving groove (61) are concave arc shapes that limit the translation of the torsion spring (4). One side of the receiving groove (61) is provided with an inclined groove (62) for positioning and abutting the adjusting end of the adjusting rod (2). Clamping members (7) are movably arranged on both sides of the mounting base (6). When the clamping members (7) are relatively close, they are used to limit the torsion spring (4). The rotation of the main body of the spring (4) causes a pressing member (8) to be moved on the side of the fixed seat (6) near the inclined groove (62). When the pressing member (8) is close to the fixed seat (6), it is used to press the torsion arm (41) of the torsion spring (4) located on the side of the inclined groove (62) to the side away from the inclined groove (62). A pressing member (9) is moved on the side of the fixed seat (6) away from the inclined groove (62). When the pressing member (9) is close to the fixed seat (6), it presses against the upper end of the torsion arm (41) of the torsion spring (4).

2. A door handle front rocker torsion spring pin axle assembly as defined in claim 1 wherein: The movement of the clamping member (7), the squeezing member (8), and the pressing member (9) is each controlled by an independent translation drive.

3. A door handle front rocker torsion spring pin axle assembly as defined in claim 1 wherein: A pin assembly module is provided at one end of the fixed base (6) outside the receiving groove (61). The pin assembly module includes a pin positioning seat (10) fixed on the base (5). The pin positioning seat (10) is provided with a guide groove (1001) that connects with the receiving groove (61) and is used to guide the movement of the pin (3). A push rod (12) is provided at one end of the guide groove (1001) away from the receiving groove (61) for pushing the pin (3) into the receiving groove (61) to achieve assembly.

4. A door handle front rocker torsion spring pin axle assembly as defined in claim 3 wherein: The pin positioning seat (10) has a guide hole at the end of the guide groove (1001) away from the receiving groove (61) for the push rod (12) to be guided into the guide groove (1001).

5. A vehicle door handle front rocker torsion spring pin axle assembly as defined in claim 4 wherein: One end of the push rod (12) is fixed on an assembly block (13), the assembly block (13) slides on the base (5), and a push cylinder (14) is provided on the base (5) to drive the assembly block (13) to move. As the push cylinder (14) extends and retracts, the push rod (12) is always engaged with the guide hole.

6. A door handle front rocker torsion spring pin axle assembly as defined in claim 1 wherein: A robotic arm is provided on the base (5) for gripping the front rocker arm (1) and placing the front rocker arm (1) in the corresponding assembly position of the receiving slot (61).

7. A vehicle door handle front rocker torsion spring pin axle assembly as defined in claim 6 wherein: A positioning and loading seat (11) is provided on the fixed seat (6) for positioning and placing the front rocker arm (1) for gripping by the robotic arm.

8. A vehicle door handle front rocker torsion spring pin axle assembly as defined in claim 7 wherein: The robotic arm includes a gripper cylinder (16) for gripping workpieces. A positioning cover (17) is provided on the cylinder body of the gripper cylinder (16) with its bottom fitting against the upper end of the front rocker arm (1). The positioning cover (17) has clearance grooves on both sides for the gripper (161) of the gripper cylinder (16) to pass through.

9. A vehicle door handle front rocker torsion spring pin axle assembly as defined in claim 8 wherein: The positioning and loading seat (11) and the fixed seat (6) are offset. The robotic arm is a dual-coordinate robotic arm that moves in the horizontal and vertical directions perpendicular to the insertion direction of the pin shaft (3). The base (5) is moved and set on the worktable along the insertion direction of the pin shaft (3).

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