Harvester bumper part welding tool suitable for mechanical arm welding

By designing a welding fixture for harvester bumper components suitable for robotic welding, and utilizing the combination of clamping blocks and hinge frames, the problem of unstable welding of bumper components was solved, thereby improving welding quality and structural strength.

CN224254564UActive Publication Date: 2026-05-19昆山瑞雪机械有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
昆山瑞雪机械有限公司
Filing Date
2025-05-07
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In the existing technology, the bumper parts of combine harvesters are prone to shaking when welded using robotic arms due to their complex shape, resulting in unstable welding and affecting welding quality and structural strength.

Method used

A welding fixture for harvester bumper components suitable for robotic welding was designed, including a base plate, clamp, support frame, clamping block, welding components, etc. Through the cooperation of the clamping block and the hinge frame, the bumper components are stably clamped and positioned to ensure a reliable weld.

Benefits of technology

This improved the welding quality and structural strength of the bumper components, ensuring the stability and accuracy of the welding process and avoiding welding errors caused by shaking.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a harvester bumper part welding tool suitable for manipulator welding, which belongs to the technical field of combine harvester bumper part welding tools, and comprises a bottom plate, the upper surface of the bottom plate is respectively and fixedly connected with two clamping frames, an auxiliary frame and a support frame, and the back surface of each clamping frame is fixedly connected with a clamping block. A welding part is jointly clamped in the two clamping blocks, the outer surface of the welding part makes contact with the upper surface of the supporting frame, and two vertical welding plates and two transverse welding plates are arranged outside the welding part. According to the harvester bumper part welding tool suitable for mechanical arm welding, through cooperation of a welding part, a vertical welding plate, a first support, a first hinge frame and a first clamping rod, the welding part needing to be welded and the vertical welding plate needing to be welded are manually installed and clamped to the needed positions, and a transverse welding plate is conveniently installed to the needed position of the welding part; the effect of improving the welding quality of the bumper component of the combine harvester is achieved.
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Description

Technical Field

[0001] This utility model belongs to the technical field of welding fixtures for combine harvester bumper components, and particularly relates to a welding fixture for combine harvester bumper components suitable for robotic arm welding. Background Technology

[0002] The bumper component of a combine harvester is an important structural component used to protect the front of the machine. Its main function is to prevent mechanical damage caused by collisions or other accidents during operation. The bumper component of this combine harvester needs to be welded.

[0003] When welding the bumper components of existing combine harvesters, the complex shape of these components necessitates a robust weld, accurate positioning, and minimal risk of errors when using robotic arms. However, directly placing the bumper components in the required position for welding can cause instability and wobbling, thus affecting the weld quality and reducing the structural strength of the bumper components.

[0004] To address these issues, we propose a welding fixture for harvester bumper components suitable for robotic arm welding. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art where the bumper components are unstable and shake, thus affecting the welding quality of the bumper components of the combine harvester. Therefore, this invention proposes a welding fixture for the bumper components of a harvester that is suitable for robotic welding.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A welding fixture for harvester bumper components suitable for robotic arm welding includes a base plate. Two clamps, auxiliary frames, and a support frame are fixedly connected to the upper surface of the base plate. A clamping block is fixedly connected to the back of each clamp. A welding component is clamped inside the two clamping blocks. The outer surface of the welding component contacts the upper surface of the support frame. Two vertical welding plates and two horizontal welding plates are respectively provided on the outside of the welding component. A pressure plate is fixedly connected to the back of the support frame. The upper surface of each horizontal welding plate contacts the bottom surface of the pressure plate. A first support is fixedly connected to the back of each clamp, one side of the two auxiliary frames that are close to each other, and the upper surface of the support frame. The first support has a first hinge frame that is movably hinged to the side of each support that is close to each other. The output end of each set of first hinge frames is fixedly connected to a first clamp rod. The ends of two first clamp rods that are close to the clamp frame are in contact with the outer surface of the welded component. The ends of two first clamp rods that are far apart from each other are in contact with the side of each of the two vertical welding plates that are close to each other. The bottom end of the other first clamp rod is in contact with the upper surface of the pressure plate. The upper surface of the base plate is fixedly connected to a second support. The upper surface of the second support is movably hinged to a second hinge frame. The output end of the second hinge frame is fixedly connected to a second clamp rod. The end of the second clamp rod that is far away from the second support is in contact with the outer surface of the welded component.

[0008] Preferably, a square steel frame is fixedly connected to the bottom surface of the base plate, and mounting plates arranged at equal intervals are fixedly connected to the outer surface of the square steel frame.

[0009] Preferably, the base plate is internally threaded with lifting screws arranged at equal intervals, and each lifting screw has a lifting ring fixedly connected to its top end.

[0010] Preferably, two fixed brackets are fixedly connected to the upper surface of the base plate, and the welding component is snapped into the inside of the two fixed brackets.

[0011] Preferably, each of the two fixed blocks is provided with an extrusion assembly on its back side, the front side of each extrusion assembly is in contact with the outer surface of the welded component, and the bottom surface of each extrusion assembly is fixedly connected to the upper surface of the base plate.

[0012] Preferably, two mounting rods are fixedly connected to the outer surface of the welding component, and two first clamping assemblies and two second clamping assemblies are fixedly connected to the upper surface of the base plate. The bottom surfaces of the two first clamping assemblies are in contact with the upper surfaces of the two horizontal welding plates, and the side surfaces of the two second clamping assemblies that are close to each other are in contact with the outer surfaces of the two mounting rods.

[0013] Preferably, each of the clamps has a reinforcing rib fixedly connected to its inner wall, and the bottom surface of each reinforcing rib is in contact with the upper surface of the base plate.

[0014] Preferably, each input end of the first hinge frame and the input end of the second hinge frame in each group are fixedly connected to a manual control lever, and the outer surface of each manual control lever is covered with a wear-resistant sleeve.

[0015] In summary, the technical effects and advantages of this utility model are as follows:

[0016] 1. By setting up a base plate, clamp, auxiliary frame, clamping block, welding component, vertical welding plate, pressure plate, first support, first hinge frame, and first clamping rod, the welding component and vertical welding plate to be welded can be manually installed and clamped into the required position. The clamp and auxiliary frame fixed on the base plate are used to clamp and install the welding component using the clamping block fixed on one side of the clamp. By manually rotating the first hinge frame on the first support, the first clamping rod can output extension and retraction power, which can be used to directly clamp the outer surface of the welding component, clamp the vertical welding plate into the required position of the welding component, and press the horizontal welding plate with the pressure plate to facilitate the installation of the horizontal welding plate into the required position of the welding component. This can stably clamp the bumper component of the combine harvester, making the welding reliable, the positioning accurate, and less prone to errors, thereby improving the welding quality of the bumper component of the combine harvester.

[0017] 2. By setting up a support frame, a second support, a second hinge frame, and a second clamping rod in coordination, the second clamping rod can be easily moved by manually rotating the second hinge frame on the second support. This allows the second clamping rod on the support frame to be laterally pressed against the outer surface of the welded component, thereby further improving the clamping stability of the bumper component of the combine harvester, ensuring reliable welding, accurate positioning, and reducing the likelihood of errors. This further improves the welding quality of the bumper component of the combine harvester. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the support frame of this utility model;

[0019] Figure 2 This is a three-dimensional rear view structural diagram of the second clamping component of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the welding component of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the first hinge frame of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the second hinge frame of this utility model.

[0023] In the diagram: 1. Base plate; 2. Clamping frame; 3. Clamping block; 4. First support; 5. First hinge frame; 6. First clamping rod; 7. Manual control lever; 8. Wear-resistant sleeve; 9. Welded components; 10. Vertical welding plate; 11. Horizontal welding plate; 12. Pressure plate; 13. First clamping assembly; 14. Auxiliary frame; 15. Second clamping assembly; 16. Extrusion assembly; 17. Fixed stop; 18. Second support; 19. Second hinge frame; 20. Second clamping rod; 21. Square steel frame; 22. Mounting plate; 23. Reinforcing rib; 24. Lifting screw; 25. Lifting ring; 26. Mounting rod; 27. Support frame. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figure 1-5 A welding fixture for harvester bumper components suitable for robotic welding includes a base plate 1. A square steel frame 21 is fixedly connected to the bottom surface of the base plate 1. Mounting plates 22 arranged at equal intervals are fixedly connected to the outer surface of the square steel frame 21. By fixing the square steel frame 21 to the bottom surface of the base plate 1, the bottom surface of the base plate 1 can be raised, thereby facilitating the fixing and installation of the welding fixture using the mounting plates 22.

[0026] Two clamps 2, an auxiliary frame 14, and a support frame 27 are fixedly connected to the upper surface of the base plate 1. Each clamp 2 has a reinforcing rib 23 fixedly connected to its inner wall. The bottom surface of each reinforcing rib 23 is in contact with the upper surface of the base plate 1. The reinforcing rib 23 can improve the stability of the clamp 2 and enhance its support stability.

[0027] Each clamp 2 has a clamping block 3 fixedly connected to its back. The two clamping blocks 3 are connected to a welding component 9. The outer surface of the welding component 9 is in contact with the upper surface of the support frame 27. The bottom plate 1 has a threaded connection with lifting screws 24 arranged at equal intervals. Each lifting screw 24 has a lifting ring 25 fixedly connected to its top. By manually holding the lifting ring 25, the lifting screw 24 can be easily twisted to the bottom plate 1, so that the welding fixture can be easily lifted by a crane.

[0028] The welding component 9 is provided with two vertical welding plates 10 and two horizontal welding plates 11 on its exterior. Two fixed brackets 17 are fixedly connected to the upper surface of the base plate 1. The welding component 9 is snapped into the interior of the two fixed brackets 17. The fixed brackets 17 can conveniently limit one side of the welding component 9, thereby facilitating the snapping and installation of the welding component 9.

[0029] Both fixed brackets 17 are equipped with extrusion components 16 on their backs. The extrusion components 16 include a mounting base and a manually controllable telescopic rod, which can conveniently extrude the outer surface of the welded component 9 by controlling the telescopic rod. The front of each extrusion component 16 is in contact with the outer surface of the welded component 9, and the bottom of each extrusion component 16 is fixedly connected to the upper surface of the base plate 1. By directly extruding the outer surface of the welded component 9 using the extrusion components 16, the clamping stability of the welded component 9 can be easily improved.

[0030] A pressure plate 12 is fixedly connected to the back of the support frame 27. The upper surface of each horizontal welding plate 11 is in contact with the bottom surface of the pressure plate 12. A first support 4 is fixedly connected to the back of each clamp 2, the side of the two auxiliary frames 14 that are close to each other, and the upper surface of the support frame 27. A first hinge frame 5 is movably hinged to the side of the two sets of first supports 4 that are close to each other. A first clamp rod 6 is fixedly connected to the output end of each set of first hinge frames 5. The ends of two first clamp rods 6 near the clamp 2 are in contact with the outer surface of the welding component 9. The ends of two first clamp rods 6 that are far from each other are in contact with the side of the two vertical welding plates 10 that are close to each other. The bottom end of the other first clamp rod 6 is in contact with the upper surface of the pressure plate 12. Two mounting rods 2 are fixedly connected to the outer surface of the welding component 9. 6. Two first clamping assemblies 13 and two second clamping assemblies 15 are fixedly connected to the upper surface of the base plate 1. The clamping assemblies include supports installed on the base plate 1, rotatable levers, and telescopic rods that output telescopic force. The first clamping assemblies 13 can apply clamping force to the two horizontal welding plates 11, while the second clamping assemblies 15 can apply clamping force to the two mounting rods 26. The bottom surfaces of the two first clamping assemblies 13 are in contact with the upper surfaces of the two horizontal welding plates 11, and the sides of the two second clamping assemblies 15 that are close to each other are in contact with the outer surfaces of the two mounting rods 26. The first clamping assemblies 13 can be used to easily clamp and install the two horizontal welding plates 11, while the second clamping assemblies 15 can be used to easily clamp and install the two mounting rods 26.

[0031] A second support 18 is fixedly connected to the upper surface of the base plate 1. A second hinge frame 19 is movably hinged to the upper surface of the second support 18. A second clamping rod 20 is fixedly connected to the output end of the second hinge frame 19. The end of the second clamping rod 20 away from the second support 18 contacts the outer surface of the welding component 9. A manual control rod 7 is fixedly connected to the input end of each set of first hinge frames 5 and the input end of each set of second hinge frames 19. A wear-resistant sleeve 8 is fitted on the outer surface of each set of manual control rods 7. By manually holding the wear-resistant sleeve 8, the first hinge frame 5 and the second hinge frame 19 can be rotated using the manual control rod 7, thereby facilitating the clamping of the welding component 9.

[0032] The working principle of this utility model is as follows: When using this welding fixture suitable for robotic arm welding to clamp and weld the bumper parts of a harvester, the welding fixture is first placed manually on a horizontal ground. The square steel frame 21 and mounting plate 22 fixed on the bottom surface of the base plate 1 can be used to install the welding fixture in the required position. Alternatively, the lifting screw 24 fixed to the outside of the lifting ring 25 can be manually twisted to the inside of the base plate 1, so that the hook of the crane can be used to hook the lifting ring 25 to easily lift and move the welding fixture to the required position for use.

[0033] Next, the clamping frame 2, the first clamping assembly 13, the auxiliary frame 14, the second clamping assembly 15, the extrusion assembly 16, the fixed stop frame 17, and the support frame 27 on the base plate 1 are installed onto the upper surface of the base plate 1 by bolts. The first support 4 is then installed onto one side of the clamping frame 2, one side of the auxiliary frame 14, and the upper surface of the support frame 27 by bolts. The welding component 9 is then installed and clipped into the inside of the two clamping blocks 3 by manual means, while the outer surface of the welding component 9 is made to contact the upper surface of the support frame 27.

[0034] By manually gripping the wear-resistant sleeve 8 outside the manual control lever 7, the first hinge frame 5 can be easily driven to rotate within the first support 4, and the second hinge frame 19 can also rotate within the second support 18. This allows the first clamping rod 6 to output an outward stretching and contracting pressure, and the second clamping rod 20 to output an outward stretching and contracting pressure. The pressure of the first hinge frame 5 can be used to press the welded component 9 inside the clamping block 3, and can also press and clamp the two vertical welding plates 10 fixed outside the welded component 9. Furthermore, the pressure of the first hinge frame 5 on the pressure plate 12 can be used to press and clamp the two horizontal welding plates 11 fixed outside the welded component 9.

[0035] By manually controlling the first clamping assembly 13, the second clamping assembly 15, and the extrusion assembly 16, the first clamping assembly 13 can output extrusion force to clamp the two horizontal welding plates 11 outside the welding component 9, the second clamping assembly 15 can output extrusion force to clamp the two mounting rods 26 outside the welding component 9, and the extrusion force output by the extrusion assembly 16, in conjunction with the fixed stop 17, can clamp the outer surface of the welding component 9, thereby stably clamping the welding component 9, ensuring reliable welding, accurate positioning, and reducing the likelihood of errors.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A welding fixture for harvester bumper components suitable for robotic arm welding, comprising a base plate (1), characterized in that: Two clamps (2), an auxiliary frame (14), and a support frame (27) are fixedly connected to the upper surface of the base plate (1). A clamping block (3) is fixedly connected to the back of each clamp (2). A welding component (9) is clamped inside the two clamping blocks (3). The outer surface of the welding component (9) is in contact with the upper surface of the support frame (27). Two vertical welding plates (10) and two horizontal welding plates (11) are respectively provided on the outside of the welding component (9). A pressure plate (12) is fixedly connected to the back of the support frame (27). The upper surface of each horizontal welding plate (11) is in contact with the bottom surface of the pressure plate (12). A first support (4) is fixedly connected to the back of each clamp (2), the side of the two auxiliary frames (14) that are close to each other, and the upper surface of the support frame (27). The two sets of first supports (4) are close to each other. One side is movably hinged with a first hinge frame (5), and the output end of each set of first hinge frames (5) is fixedly connected with a first clamp rod (6). The ends of two first clamp rods (6) near the clamp frame (2) are in contact with the outer surface of the welding component (9). The ends of two first clamp rods (6) that are far apart from each other are in contact with the sides of two vertical welding plates (10) that are close to each other. The bottom end of the other first clamp rod (6) is in contact with the upper surface of the pressure plate (12). The upper surface of the base plate (1) is fixedly connected with a second support (18). The upper surface of the second support (18) is movably hinged with a second hinge frame (19). The output end of the second hinge frame (19) is fixedly connected with a second clamp rod (20). The end of the second clamp rod (20) that is far away from the second support (18) is in contact with the outer surface of the welding component (9).

2. The welding fixture for harvester bumper components suitable for robotic arm welding according to claim 1, characterized in that: A square steel frame (21) is fixedly connected to the bottom surface of the base plate (1), and mounting plates (22) arranged at equal intervals are fixedly connected to the outer surface of the square steel frame (21).

3. The welding fixture for harvester bumper components suitable for robotic arm welding according to claim 1, characterized in that: The base plate (1) is internally threaded with lifting screws (24) arranged at equal intervals, and each lifting screw (24) is fixedly connected to a lifting ring (25) at its top end.

4. The welding fixture for harvester bumper components suitable for robotic arm welding according to claim 1, characterized in that: Two fixed brackets (17) are fixedly connected to the upper surface of the base plate (1), and the welding component (9) is snapped into the inside of the two fixed brackets (17).

5. A welding fixture for harvester bumper components suitable for robotic arm welding according to claim 4, characterized in that: Both of the fixed baffles (17) are provided with extrusion components (16) on their back sides. The front side of each extrusion component (16) is in contact with the outer surface of the welding component (9), and the bottom surface of each extrusion component (16) is fixedly connected to the upper surface of the base plate (1).

6. The welding fixture for harvester bumper components suitable for robotic arm welding according to claim 1, characterized in that: Two mounting rods (26) are fixedly connected to the outer surface of the welding component (9). Two first clamping assemblies (13) and two second clamping assemblies (15) are fixedly connected to the upper surface of the base plate (1). The bottom surfaces of the two first clamping assemblies (13) are in contact with the upper surfaces of the two horizontal welding plates (11). The side surfaces of the two second clamping assemblies (15) that are close to each other are in contact with the outer surfaces of the two mounting rods (26).

7. The welding fixture for harvester bumper components suitable for robotic arm welding according to claim 1, characterized in that: Each of the clamps (2) has a reinforcing rib (23) fixedly connected to its inner wall, and the bottom surface of each reinforcing rib (23) is in contact with the upper surface of the base plate (1).

8. A welding fixture for harvester bumper components suitable for robotic arm welding according to claim 1, characterized in that: Each set of the first hinge frame (5) and the second hinge frame (19) is fixedly connected to a manual control lever (7), and the outer surface of each set of the manual control lever (7) is fitted with a wear-resistant sleeve (8).