Lightweight elastic buffer type automated welding cup projection weld detection machine gripper structure

Abstract

The utility model discloses a light weight elastic buffer formula automatic welding cup projection weld detection machine clamp jaw structure relates to detection machine clamp jaw structure technical field, including with the detachable fixed jaw body of detection machine, the vertical installation of the jaw body upper end is detachable with the connecting structure of detection machine, the flexible clamping structure for assisting clamping is symmetrically installed to the jaw body upper, the lightweight structure for reducing weight is provided with to the jaw body, through the setting jaw body, connecting structure installs the jaw body with detection machine, makes the product more smooth in turning over, makes the connecting structure, flexible clamping structure and lightweight structure cooperation can significantly improve the effective payload of mechanical arm, enhances the stability of electromagnet adsorption, improves equipment compatibility and utilization rate, prolongs equipment life, and maintenance cost reduces 20%, reduces production cost, and brings considerable economic benefits.

Description

Technical Field

[0001] This utility model belongs to the technical field of inspection machine gripper structure, specifically a lightweight elastic buffer type automated welding cup convex weld inspection machine gripper structure. Background Technology

[0002] The automated weld cup projection weld inspection machine is an intelligent device specifically designed for welding process quality control. It is primarily used to detect welding defects in weld cup projection welds (such as lap welds on sheet metal parts like automotive wiring harness terminals and relay contacts). Its core function is to achieve high-precision and high-efficiency weld quality assessment through automation technology, replacing traditional manual visual inspection and improving production stability and yield. The gripper structure is a core component of the mechanical clamping system, and its design directly affects the gripping force, accuracy, adaptability, and reliability. When using the automated weld cup projection weld inspection machine, the product to be inspected needs to be clamped and transported for easy inspection.

[0003] The existing gripper structure of automated weld cup projection weld seam inspection machines has certain drawbacks. The grippers typically use an integral metal frame structure, resulting in excessive weight and reducing the effective load of the robotic arm by more than 40%, severely limiting the gripping range. Furthermore, the electromagnets on the grippers are rigidly connected, meaning that when the workpiece deforms by more than ±2.5mm, the two electromagnets cannot attract the workpiece synchronously, easily triggering an instantaneous overload alarm on the robotic arm, which fails to meet user needs. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art; to this end, the present invention proposes a lightweight elastic buffer type automated welding cup projection weld inspection machine gripper structure.

[0005] A lightweight, elastic buffer type automated welding cup projection weld inspection machine gripper structure is applied to the inspection machine, comprising: a gripper body that is detachably fixed to the inspection machine; a connection structure that is detachably installed on the upper end of the gripper body; flexible clamping structures for auxiliary clamping that are symmetrically installed on the gripper body; and a lightweight structure for weight reduction that is provided on the gripper body.

[0006] As a further embodiment of this utility model: the flexible clamping structure includes a buffer structure detachably mounted on the gripper body and an electromagnet detachably fixed to the buffer structure; the flexible clamping structure is located on the side of the gripper body away from the lightweight structure; the outer surface of the electromagnet is aligned with the outer surface of the gripper body, that is, the width of the electromagnet is the same as the width of the gripper body, and one end face of the electromagnet is aligned with one end face of the gripper body.

[0007] As a further embodiment of this utility model: the buffer structure includes several sets of guide posts vertically mounted on the gripper body, and several sets of first buffer springs and second buffer springs respectively sleeved on the guide posts; one end of the guide post passes through the gripper body and is detachably fixed to the electromagnet; the other end of the guide post is provided with a stop block, the guide post is arranged along the moving direction of the electromagnet, and the dimensions of the guide post are set to a diameter of 8mm and a length of 50mm, with a tolerance fit of H7 / g6, the height of the first buffer spring and the second buffer spring are both set to 15mm, the wire diameter of the first buffer spring and the second buffer spring is set to 1.2mm, and both the first buffer spring and the second buffer spring can have a floating stroke of ±3mm.

[0008] As a further embodiment of this utility model: the first buffer spring is disposed between the stop block and the gripper body; the second buffer spring is disposed between the gripper body and the electromagnet.

[0009] As a further aspect of this utility model: the initial state of both the first buffer spring and the second buffer spring is set to a compressed state, that is, the preload of the first buffer spring and the second buffer spring is set to 8-12N, so as to realize the dynamic contact of the electromagnet contact surface and ensure that the two electromagnets can be attracted synchronously even when there is a 2mm flatness deviation in the workpiece.

[0010] As a further embodiment of this utility model: the lightweight structure includes weight-reducing holes symmetrically arranged on the gripper body; the weight-reducing holes are formed on the longitudinal arm of the gripper body.

[0011] As a further embodiment of this utility model: the gripper body is configured as a "U" shaped structure; the thickness of the gripper body is reduced from the original 25mm to 15mm, and in conjunction with the lightweight structure, the gripper body strength is guaranteed while the weight reduction holes are increased to the maximum extent, so that the overall weight is reduced to 2.8KG, and the weight reduction rate reaches 46.2%.

[0012] As a further embodiment of this utility model: the connecting structure includes a connecting block vertically installed on the upper end face of the cross arm of the gripper body and several sets of connecting holes provided on the connecting block; the connecting block is aligned with one side of the gripper body, so that when the product is rotated 180°, the 6th axis and 5th axis of the robotic arm maintain a 90° angle, avoiding the occurrence of singularities and making the rotation smoother.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model uses a gripper body and a connecting structure to install the gripper body and the testing machine, which makes the product flipping more smoothly. The connecting structure, flexible clamping structure and lightweight structure work together to significantly improve the effective load of the robotic arm; enhance the stability of the electromagnet adsorption; improve the equipment compatibility and utilization rate; extend the service life of the equipment; reduce maintenance costs by 20%, reduce production costs, and bring considerable economic benefits. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0016] Figure 2 This is a partial structural diagram of the gripper body and the flexible clamping structure in this utility model.

[0017] Figure 3 This is a partial structural diagram of the electromagnet and buffer structure in this utility model.

[0018] Figure 4 This is a partial structural diagram of the original gripper structure in this utility model.

[0019] In the diagram: 1. Gripper body; 2. Connecting structure; 3. Flexible clamping structure; 4. Lightweight structure; 5. Buffer structure; 6. Electromagnet; 7. Guide post; 8. First buffer spring; 9. Second buffer spring; 10. Stop; 11. Connecting block; 12. Connecting hole. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0021] Example 1

[0022] Please see Figure 1 - Figure 4 This application provides a lightweight, elastic buffer type automated welding cup projection weld inspection machine gripper structure, which is applied to the inspection machine, including: a gripper body 1 that is detachably fixed to the inspection machine; a connection structure 2 that is detachably installed on the upper end of the gripper body 1; a flexible clamping structure 3 for auxiliary clamping that is symmetrically installed on the gripper body 1; and a lightweight structure 4 for weight reduction that is provided on the gripper body 1.

[0023] The flexible clamping structure 3 includes a buffer structure 5 detachably mounted on the gripper body 1 and an electromagnet 6 detachably fixed to the buffer structure 5; the flexible clamping structure 3 is located on the side of the gripper body 1 away from the lightweight structure 4; the outer surface of the electromagnet 6 is aligned with the outer surface of the gripper body 1, that is, the width of the electromagnet 6 is the same as the width of the gripper body 1, and one end face of the electromagnet 6 is aligned with one end face of the gripper body 1.

[0024] The buffer structure 5 includes several sets of guide posts 7 vertically mounted on the gripper body 1, and several sets of first buffer springs 8 and second buffer springs 9 respectively sleeved on the guide posts 7; one end of the guide post 7 passes through the gripper body 1 and is detachably fixed to the electromagnet 6, and the number of guide posts 7 is set to two or more; the other end of the guide post 7 is provided with a stop block 10, the guide post 7 is set along the moving direction of the electromagnet 6, and the size of the guide post 7 is set to a diameter of 8mm and a length of 50mm, with a tolerance fit of H7 / g6, the height of the first buffer spring 8 and the second buffer spring 9 is both set to 15mm, the wire diameter of the first buffer spring 8 and the second buffer spring 9 is set to 1.2mm, and both the first buffer spring 8 and the second buffer spring 9 can have a floating stroke of ±3mm.

[0025] The first buffer spring 8 is disposed between the stop block 10 and the gripper body 1; the second buffer spring 9 is disposed between the gripper body 1 and the electromagnet 6.

[0026] The initial state of both the first buffer spring 8 and the second buffer spring 9 is set to compression, that is, the preload of the first buffer spring 8 and the second buffer spring 9 is set to 8-12N, so as to achieve dynamic contact of the contact surface of the electromagnet 6 and ensure that the two electromagnets 6 can be attracted synchronously even when there is a 2mm flatness deviation in the workpiece.

[0027] The lightweight structure 4 includes weight-reducing holes symmetrically arranged on the gripper body 1; the weight-reducing holes are opened on the longitudinal arm of the gripper body 1.

[0028] The gripper body 1 is designed with a "U" shaped structure; the thickness of the gripper body 1 is reduced from the original 25mm to 15mm. It is used in conjunction with the lightweight structure 4 to ensure the strength of the gripper body 1 while maximizing the weight reduction holes, so that the overall weight is reduced to 2.8KG, and the weight reduction rate reaches 46.2%.

[0029] The connecting structure 2 includes a connecting block 11 vertically mounted on the upper end face of the horizontal arm of the gripper body 1 and several sets of connecting holes 12 disposed on the connecting block 11; the connecting block 11 is aligned with one side of the gripper body 1, so that when the product is rotated 180°, the 6th axis and the 5th axis of the robotic arm maintain 90°, avoiding the occurrence of singularities and making the rotation smoother.

[0030] In summary, by vertically mounting the connecting block 11 on the upper end face of the cross arm of the gripper body 1, setting a lightweight structure 4 on the gripper body 1, sleeved the first buffer spring 8 on the guide post 7 with one end of the guide post 7 passing through the gripper body 1, sleeved the second buffer spring 9 on the guide post 7, and installing one end of the guide post 7 to the electromagnet 6, and installing the gripper body 1 to the testing machine through the connecting block 11, the synergistic cooperation of the connecting structure 2, the flexible clamping structure 3, and the lightweight structure 4 can significantly improve the effective load of the robotic arm; enhance the adsorption stability of the electromagnet 6; improve equipment compatibility and uptime; extend equipment service life; reduce maintenance costs by 20%, thereby reducing production costs and bringing considerable economic benefits.

[0031] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. A lightweight, elastic, buffered gripper structure for an automated welding cup projection weld inspection machine, used in an inspection machine, characterized in that... include: The gripper body (1) is detachably fixed to the testing machine; The upper end of the gripper body (1) is vertically mounted with a connection structure (2) that can be detachably installed with the testing machine; The gripper body (1) is symmetrically equipped with flexible gripping structures (3) for auxiliary gripping; The gripper body (1) is provided with a lightweight structure (4) for weight reduction; The flexible clamping structure (3) includes a buffer structure (5) that can be detachably installed on the gripper body (1) and an electromagnet (6) that can be detachably fixed to the buffer structure (5).

2. The lightweight, elastic buffer type automated welding cup projection weld inspection machine gripper structure according to claim 1, characterized in that, The flexible clamping structure (3) is located on the side of the gripper body (1) away from the lightweight structure (4); The outer surface of the electromagnet (6) is aligned with the outer surface of the gripper body (1).

3. The lightweight elastic buffer type automated welding cup projection weld inspection machine gripper structure according to claim 1, characterized in that, The buffer structure (5) includes several sets of guide posts (7) vertically mounted on the gripper body (1), and several sets of first buffer springs (8) and second buffer springs (9) respectively sleeved on the guide posts (7); One end of the guide post (7) passes through the gripper body (1) and is detachably fixed to the electromagnet (6); A stop (10) is provided at the other end of the guide post (7).

4. The lightweight elastic buffer type automated welding cup projection weld inspection machine gripper structure according to claim 3, characterized in that, The first buffer spring (8) is disposed between the stop (10) and the gripper body (1); The second buffer spring (9) is disposed between the gripper body (1) and the electromagnet (6).

5. The lightweight elastic buffer type automated welding cup projection weld inspection machine gripper structure according to claim 4, characterized in that, The first buffer spring (8) and the second buffer spring (9) are both initially set to a compressed state.

6. The lightweight, elastic buffer type automated welding cup projection weld inspection machine gripper structure according to claim 1, characterized in that, The lightweight structure (4) includes weight-reducing holes symmetrically arranged on the gripper body (1); The weight reduction hole is located on the longitudinal arm of the gripper body (1).

7. The lightweight elastic buffer type automated welding cup projection weld inspection machine gripper structure according to claim 1, characterized in that, The gripper body (1) is configured as a "U" shaped structure; The thickness of the gripper body (1) is set to 15mm.

8. The lightweight, elastic buffer type automated welding cup projection weld inspection machine gripper structure according to claim 1, characterized in that, The connection structure (2) includes a connection block (11) vertically installed on the upper end face of the cross arm of the gripper body (1) and a number of connection holes (12) provided on the connection block (11); The connecting block (11) is aligned with one side of the gripper body (1).

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