Welding clamping device for machining of automobile clamp pieces

By designing an adaptive clamping device and a welding clamping device with cooling and grinding functions, the problems of size adaptation and welding quality in the processing of clamp parts were solved, and the processing accuracy and appearance quality were improved.

CN121551963AInactive Publication Date: 2026-02-24JIANGSU GUANGCE PRECISION AUTO PARTS MFG CO LTD
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Patent Information

Application Number
CN202511926673.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-19
Publication Date
2026-02-24
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing automotive clamp parts processing fixtures cannot accommodate various sizes and models, and welding can easily lead to workpiece damage and weld burrs, affecting processing accuracy and appearance.

Method used

A welding clamping device including a clamping device, a cooling device, and a post-processing device was designed. The size of the clamp is adjusted by a hydraulic rod, the clamping force is controlled by a triggering device, and the cooling device cools down the welding point while simultaneously grinding it, so as to achieve multi-size adaptation and improve welding quality.

Benefits of technology

It enables the adaptation of clamping parts of different sizes, avoids excessive clamping force from damaging the workpiece, ensures appearance quality, reduces welding defects, and improves welding efficiency and precision.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of automobile part clamps, and discloses a welding clamping device for automobile clamp part machining, which comprises a case assembly, the case assembly comprises a rack base fixedly mounted on the ground, an outer shell is fixedly mounted at the top of the rack base, and a protective door is fixedly mounted on the side surface of the outer shell; the clamp device is arranged, when clamp pieces of different models and sizes need to be machined, the stretching degree of a clamp can be controlled by adjusting the stretching degree of a second hydraulic rod, and the clamp device is suitable for the clamp pieces of various sizes. The reset spring located at the bottom of the supporting block can be compressed, when the trigger block on the supporting block touches the trigger, the second hydraulic rod is controlled to stop moving to complete clamping of the clamp piece, the clamping force can be controlled easily, the situation that a workpiece is affected by too large clamping force is avoided, and meanwhile the clamping device can be matched with the size of the clamp piece.
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Description

Technical Field

[0001] This invention relates to the field of automotive parts clamping technology, and more specifically to a welding clamping device for processing automotive clamp parts. Background Technology

[0002] In the automotive manufacturing industry, clamps, as core components ensuring the sealing and stability of piping systems, are widely used for connecting and fixing critical systems such as fuel lines, brake lines, coolant lines, and air conditioning lines. Their performance directly affects the operational safety, reliability, and durability of a vehicle. For example, loosening or sealing failure of fuel line clamps can lead to fuel leakage risks, while connection defects in brake line clamps directly affect the response efficiency of the braking system. Therefore, the machining accuracy and welding quality of clamps have a decisive impact on the overall quality of a vehicle. With the rapid development of the automotive industry towards lightweighting, high reliability, and intelligentization, the market has placed increasingly stringent demands on the structural complexity, dimensional accuracy, and mass production consistency of clamps, thereby driving the upgrading and iteration of their processing technology and supporting equipment. The welding process is a core link in the automotive clamp manufacturing process, and its main function is to integrate the clamp body, connecting lugs, locking mechanisms, and other disparate components into an integrated structure through welding. In this process, the performance of the welding clamping device is crucial. Its core function is to achieve precise positioning, stable clamping, and posture maintenance of the workpiece to be welded, ensuring that the workpiece does not shift or deform during welding, thereby guaranteeing the weld formation quality, dimensional accuracy, and mechanical properties. A high-quality clamping device can not only reduce the incidence of welding defects but also improve welding efficiency, laying a good foundation for subsequent assembly processes.

[0003] Current technological shortcomings: Currently, most clamps used in the processing of clamp parts adopt rigid clamping, which cannot be well adapted to clamp parts of various sizes and models. Moreover, the high temperature generated during the welding of clamp parts can easily damage the workpiece itself. After welding is completed, weld burrs are also prone to appear at the weld points, affecting the appearance and performance of the clamp parts. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a welding clamping device for processing automotive clamp parts, so as to solve the problems existing in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a welding clamping device for processing automotive clamp parts, comprising a chassis assembly, the chassis assembly including a frame base fixedly installed on the ground, an outer shell fixedly installed on the top of the frame base, a protective door fixedly installed on the side of the outer shell, a feeding device movably connected to the inner wall of the top of the outer shell, a welding device movably installed on the side of the inner wall of the outer shell, a cooling device fixedly installed on the side of the inner wall of the outer shell, a clamping assembly installed on the side of the inner wall of the outer shell, the clamping assembly being located directly below the welding device, a processing assembly fixedly installed on the side of the outer shell, a post-processing device fixedly installed on the side of the inner wall of the outer shell, the post-processing device being located directly below the clamping assembly, the processing assembly including a storage box fixedly installed on the side of the outer shell, and a side baffle fixedly installed on the top of the storage box.

[0006] Furthermore, the cooling device includes a transmission assembly fixedly mounted on the side of the outer casing. A fan blade is movably mounted on the side of the transmission assembly. A first transmission shaft is movably sleeved on the inner wall of the transmission assembly. The other end of the first transmission shaft is movably sleeved on the inner wall of the outer casing. A first gear is fixedly mounted on the side of the first transmission shaft. A belt is sleeved on the outer side of the first gear.

[0007] Furthermore, the post-processing device includes a first motor fixedly installed on the inner wall of the outer casing and a second support cylinder fixedly installed on the side of the outer casing. A second drive shaft is fixedly connected to the side of the first motor. The second drive shaft is movably sleeved on the inner wall of the second support cylinder. A grinding wheel is fixedly installed at the other end of the second drive shaft. A second gear is fixedly installed on the side of the second drive shaft. A belt is sleeved on the outer side of the second gear.

[0008] Furthermore, the welding device includes a first hydraulic rod fixedly installed on the inner wall of the outer shell, a support arm fixedly installed on the top of the first hydraulic rod, the support arm being movably sleeved on the inner wall of the outer shell, a disassembly device fixedly installed on the side of the support arm, a welding rod movably sleeved on the inner wall of the disassembly device, and a welding head fixedly installed on the bottom of the welding rod.

[0009] Furthermore, the fixture assembly includes a power unit fixedly mounted on the side of the housing, a fixture device movably connected to the side of the power unit, and a workpiece sleeved on the outer side of the fixture device.

[0010] Furthermore, the power unit includes a first support cylinder fixedly installed on the side of the outer casing. A second hydraulic rod and a first servo motor are fixedly installed on the inner wall of the first support cylinder. A second cross plate is fixedly installed on the other end of the second hydraulic rod. A third transmission rod is fixedly installed on the side of the first servo motor. A third gear is fixedly installed on the side of the third transmission rod. The first cross plate is movably sleeved on the other end of the first support cylinder. Internal teeth are installed on the inner wall of the first cross plate. The third gear meshes with the internal teeth.

[0011] Furthermore, the clamping device includes a support base plate fixedly installed on the side of the first cross plate and a sleeve rod movably sleeved on the side of the second cross plate. An L-shaped support arm is movably sleeved on the side of the sleeve rod. The side of the L-shaped support arm is movably sleeved with the side of the support base plate. A rotating arm is movably connected to the side of the support base plate. A fixed plate is movably sleeved on the side of the rotating arm. The side of the fixed plate is movably sleeved with the side of the L-shaped support arm. A clamping plate is fixedly installed on the top of the fixed plate. A soft rubber plate is fixedly installed on the side of the clamping plate. A triggering device is installed on the side of the clamping plate. A mating groove is opened on the top of the clamping plate.

[0012] Furthermore, the triggering device includes a sleeve fixedly installed on the inner wall of the clamping plate, a contactor fixedly installed on the inner side wall of the sleeve, a return spring fixedly installed on the inner bottom wall of the sleeve, a support block fixedly installed on the top of the return spring, a trigger block fixedly installed on the side of the return spring, and a contact plate fixedly installed on the top of the support block, the contact plate engaging with a mating groove.

[0013] The technical effects and advantages of this invention are as follows: This invention, by providing a clamping device, allows for the control of the clamp's extension size by adjusting the extension and retraction of the second hydraulic rod when processing clamp parts of different sizes, thus facilitating the adaptation of clamp parts of various sizes.

[0014] This invention incorporates a triggering device. When the workpiece is clamped, the reset spring located at the bottom of the support block is compressed. When the trigger block on the support block touches the trigger, the second hydraulic rod is controlled to stop moving, thus completing the clamping of the clamping component. This helps to control the magnitude of the clamping force, preventing the workpiece from being affected by excessive clamping force. At the same time, it can be adapted to the size of the clamping component.

[0015] This invention, by incorporating a cooling device and a post-processing device, allows the clamp parts to be processed simultaneously. Driven by a first motor and belt, the fan blades rotate to cool the surface of the clamp parts while the grinding wheel rotates to lightly polish the surface of the clamp parts. This helps to ensure the aesthetic appearance of the clamp parts and prevent quality problems caused by high temperatures. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall internal structure of the present invention; Figure 3 This is a schematic diagram of the cooling post-treatment device of the present invention; Figure 4 This is a schematic diagram of the welding device structure of the present invention; Figure 5 This is a schematic diagram of the fixture assembly structure of the present invention; Figure 6 This is a schematic diagram of the power unit structure of the present invention; Figure 7 This is a schematic diagram of the clamping device structure of the present invention; Figure 8 This is a schematic diagram of the triggering device of the present invention.

[0017] The attached figures are labeled as follows: 1. Chassis assembly; 11. Outer shell; 12. Frame base; 13. Protective door; 2. Feeding device; 3. Welding device; 31. First hydraulic rod; 32. Support arm; 33. Welding rod; 34. Disassembly device; 35. Welding head; 4. Cooling device; 41. First drive shaft; 42. First gear; 43. Transmission assembly; 44. Fan blade; 45. Belt; 5. Clamp assembly; 51. Power unit; 511. First support cylinder; 512. Second hydraulic rod; 513. First servo motor; 514. Third drive rod; 515. Third gear; 516. First cross plate; 517. Internal gear; 518. 52. Second cross plate; 53. Workpiece; 54. Clamping device; 55. Support base plate; 56. Rotating arm; 57. L-shaped support arm; 58. Sleeve rod; 59. Fixing plate; 50. Clamping plate; 51. Soft rubber plate; 52. Triggering device; 53. Contact plate; 54. Support block; 55. Triggering block; 56. Return spring; 57. Sleeve; 58. Contactor; 59. Mating groove; 60. Processing assembly; 61. Side baffle; 62. Storage box; 71. Post-processing device; 72. First motor; 73. Second gear; 74. Second support cylinder; 75. Second drive shaft; 76. Grinding wheel. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The welding clamping device for processing automotive clamp parts involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Reference Figures 1 to 8 This invention provides a welding clamping device for processing automotive clamp parts, including a chassis assembly 1. The chassis assembly 1 includes a frame base 12 fixedly installed on the ground. An outer shell 11 is fixedly installed on the top of the frame base 12. A protective door 13 is fixedly installed on the side of the outer shell 11. A feeding device 2 is movably connected to the inner wall of the top of the outer shell 11. A welding device 3 is movably installed on the side of the inner wall of the outer shell 11. A cooling device 4 is fixedly installed on the side of the inner wall of the outer shell 11. A clamp assembly 5 is installed on the side of the inner wall of the outer shell 11, located directly below the welding device 3. A processing assembly 6 is fixedly installed on the side of the outer shell 11. A post-processing device 7 is fixedly installed on the side of the inner wall of the outer shell 11, located directly below the clamp assembly 5. The processing assembly 6 includes a storage box 62 fixedly installed on the side of the outer shell 11. A side baffle 61 is fixedly installed on the top of the storage box 62.

[0020] The cooling device 4 includes a transmission assembly 43 fixedly installed on the side of the outer casing 11. A fan blade 44 is movably installed on the side of the transmission assembly 43. A first transmission shaft 41 is movably sleeved on the inner wall of the transmission assembly 43. The other end of the first transmission shaft 41 is movably sleeved on the inner wall of the outer casing 11. A first gear 42 is fixedly installed on the side of the first transmission shaft 41. A belt 45 is sleeved on the outer side of the first gear 42.

[0021] The post-processing device 7 includes a first motor 71 fixedly installed on the inner wall of the outer casing 11 and a second support cylinder 73 fixedly installed on the side of the outer casing 11. A second drive shaft 74 is fixedly connected to the side of the first motor 71. The second drive shaft 74 is movably sleeved on the inner wall of the second support cylinder 73. A grinding wheel 75 is fixedly installed at the other end of the second drive shaft 74. A second gear 72 is fixedly installed on the side of the second drive shaft 74. A belt 45 is sleeved on the outer side of the second gear 72.

[0022] In this embodiment, the second drive shaft 74 drives the first drive shaft 41 to rotate via the second gear 72, the belt 45 and the first gear 42. The first drive shaft 41 drives the fan blade 44 to rotate via the transmission assembly 43, thereby cooling the welding point of the workpiece.

[0023] In this embodiment of the application, the first motor 71 is also started at the same time as welding. The first motor 71 drives the second transmission shaft 74 to rotate, and the second transmission shaft 74 drives the grinding wheel 75 to rotate, so as to slightly treat the welding burrs generated on the surface of the workpiece due to welding.

[0024] The welding device 3 includes a first hydraulic rod 31 fixedly installed on the inner wall of the outer shell 11. A support arm 32 is fixedly installed on the top of the first hydraulic rod 31. The support arm 32 is movably sleeved on the inner wall of the outer shell 11. A disassembly device 34 is fixedly installed on the side of the support arm 32. A welding rod 33 is movably sleeved on the inner wall of the disassembly device 34. A welding head 35 is fixedly installed on the bottom of the welding rod 33.

[0025] The fixture assembly 5 includes a power unit 51 fixedly installed on the side of the housing 11, a fixture device 53 movably connected to the side of the power unit 51, and a workpiece 52 sleeved on the outside of the fixture device 53.

[0026] The power unit 51 includes a first support cylinder 511 fixedly installed on the side of the outer casing 11. A second hydraulic rod 512 and a first servo motor 513 are fixedly installed on the inner wall of the first support cylinder 511. A second cross plate 518 is fixedly installed on the other end of the second hydraulic rod 512. A third transmission rod 514 is fixedly installed on the side of the first servo motor 513. A third gear 515 is fixedly installed on the side of the third transmission rod 514. A first cross plate 516 is movably sleeved on the other end of the first support cylinder 511. An internal tooth 517 is installed on the inner wall of the first cross plate 516. The third gear 515 meshes with the internal tooth 517.

[0027] The clamping device 53 includes a support base plate 531 fixedly installed on the side of the first cross plate 516 and a sleeve rod 534 movably sleeved on the side of the second cross plate 518. An L-shaped support arm 533 is movably sleeved on the side of the sleeve rod 534. The side of the L-shaped support arm 533 is movably sleeved with the side of the support base plate 531. A rotating arm 532 is movably connected to the side of the support base plate 531. A fixing plate 535 is movably sleeved on the side of the rotating arm 532. The side of the fixing plate 535 is movably sleeved with the side of the L-shaped support arm 533. A clamping plate 536 is fixedly installed on the top of the fixing plate 535. A soft rubber plate 537 is fixedly installed on the side of the clamping plate 536. A triggering device 538 is installed on the side of the clamping plate 536. A mating groove 539 is opened on the top of the clamping plate 536.

[0028] The triggering device 538 includes a sleeve 5385 fixedly installed on the inner wall of the clamping plate 536. A contactor 5386 is fixedly installed on the inner side wall of the sleeve 5385. A return spring 5384 is fixedly installed on the inner bottom wall of the sleeve 5385. A support block 5382 is fixedly installed on the top of the return spring 5384. A trigger block 5383 is fixedly installed on the side of the return spring 5384. A contact plate 5381 is fixedly installed on the top of the support block 5382. The contact plate 5381 mates with the mating groove 539.

[0029] In this embodiment, the second cross plate 518 pushes the L-shaped support arm 533 to move via the sleeve rod 534. The other end of the L-shaped support arm 533 will move around under the action of the support base plate 531 and the rotating arm 532. The contact plate 5381 will contact the inner wall of the workpiece first. The contact plate 5381 compresses the return spring 5384 through the support block 5382 at the bottom. When the trigger block 5383 located on the side of the support block 5382 contacts the contactor 5386 located on the inner wall of the sleeve 5385, the second hydraulic rod 512 will stop running, and the workpiece will be clamped.

[0030] The working principle of this invention is as follows: First, the feeding device 2 transports the workpiece to be processed to the outside of the clamping device 53. The second hydraulic rod 512 is activated, pushing the top second cross plate 518 towards the workpiece. The second cross plate 518 pushes the L-shaped support arm 533 to move via the sleeve rod 534. The other end of the L-shaped support arm 533 moves around under the action of the support plate 531 and the rotating arm 532. The contact plate 5381 first contacts the inner wall of the workpiece. The contact plate 5381 compresses the return spring 5384 via the bottom support block 5382. When the trigger block 5383 located on the side of the support block 5382 contacts the contactor 5386 located on the inner wall of the sleeve 5385, the second hydraulic rod 512 stops running. At this time, the workpiece is clamped. Subsequently, the first hydraulic rod 31 drives the welding head 3 via the support arm 32, the welding rod 33, and the disassembly device 34. 5. Welding is performed on the workpiece. When welding is required at different points, the first servo motor 513 runs continuously. The first servo motor 513 drives the third gear 515 to rotate through the third transmission rod 514. The third gear 515 meshes with the internal teeth 517 to drive the clamping device 53 to rotate, and the workpiece will also rotate accordingly to complete the welding of different positions on the workpiece. At the same time as welding, the first motor 71 will also start. The first motor 71 drives the second transmission shaft 74 to rotate. The second transmission shaft 74 drives the grinding wheel 75 to rotate, which slightly treats the welding burrs generated on the surface of the workpiece due to welding. At the same time, the second transmission shaft 74 drives the first transmission shaft 41 to rotate through the second gear 72, belt 45 and the first gear 42. The first transmission shaft 41 drives the fan blade 44 to rotate through the transmission assembly 43 to cool the welding point of the workpiece. After welding is completed, the workpiece is loaded and unloaded through the feeding device 2.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding clamping device for processing automotive clamp parts, comprising a chassis assembly (1), characterized in that: The chassis assembly (1) includes a frame base (12) fixedly installed on the ground. An outer shell (11) is fixedly installed on the top of the frame base (12). A protective door (13) is fixedly installed on the side of the outer shell (11). A feeding device (2) is movably connected to the inner wall of the top of the outer shell (11). A welding device (3) is movably installed on the side of the inner wall of the outer shell (11). A cooling device (4) is fixedly installed on the side of the inner wall of the outer shell (11). A clamp assembly (5) is installed on the side wall, the clamp assembly (5) is located directly below the welding device (3), a processing assembly (6) is fixedly installed on the side of the outer shell (11), a post-processing device (7) is fixedly installed on the inner wall side of the outer shell (11), the post-processing device (7) is located directly below the clamp assembly (5), the processing assembly (6) includes a storage box (62) fixedly installed on the side of the outer shell (11), and a side baffle (61) is fixedly installed on the top of the storage box (62).

2. The welding clamping device for processing automotive clamp parts according to claim 1, characterized in that: The cooling device (4) includes a transmission assembly (43) fixedly installed on the side of the outer shell (11). A fan blade (44) is movably installed on the side of the transmission assembly (43). A first transmission shaft (41) is movably sleeved on the inner wall of the transmission assembly (43). The other end of the first transmission shaft (41) is movably sleeved on the inner wall of the outer shell (11). A first gear (42) is fixedly installed on the side of the first transmission shaft (41). A belt (45) is sleeved on the outer side of the first gear (42).

3. The welding clamping device for processing automotive clamp parts according to claim 1, characterized in that: The post-processing device (7) includes a first motor (71) fixedly installed on the inner wall of the outer shell (11) and a second support cylinder (73) fixedly installed on the side of the outer shell (11). A second drive shaft (74) is fixedly connected to the side of the first motor (71). The second drive shaft (74) is movably sleeved on the inner wall of the second support cylinder (73). A grinding wheel (75) is fixedly installed at the other end of the second drive shaft (74). A second gear (72) is fixedly installed on the side of the second drive shaft (74). A belt (45) is sleeved on the outer side of the second gear (72).

4. The welding clamping device for processing automotive clamp parts according to claim 1, characterized in that: The welding device (3) includes a first hydraulic rod (31) fixedly installed on the inner wall of the outer shell (11). A support arm (32) is fixedly installed on the top of the first hydraulic rod (31). The support arm (32) is movably sleeved on the inner wall of the outer shell (11). A disassembly device (34) is fixedly installed on the side of the support arm (32). A welding rod (33) is movably sleeved on the inner wall of the disassembly device (34). A welding head (35) is fixedly installed at the bottom of the welding rod (33).

5. A welding clamping device for processing automotive clamp parts according to claim 1, characterized in that: The clamp assembly (5) includes a power unit (51) fixedly installed on the side of the outer shell (11), and a clamping device (53) is movably connected to the side of the power unit (51), and a workpiece (52) is sleeved on the outside of the clamping device (53).

6. A welding clamping device for processing automotive clamp parts according to claim 5, characterized in that: The power unit (51) includes a first support cylinder (511) fixedly installed on the side of the outer shell (11). A second hydraulic rod (512) and a first servo motor (513) are fixedly installed on the inner wall of the first support cylinder (511). A second cross plate (518) is fixedly installed on the other end of the second hydraulic rod (512). A third transmission rod (514) is fixedly installed on the side of the first servo motor (513). A third gear (515) is fixedly installed on the side of the third transmission rod (514). A first cross plate (516) is movably sleeved on the other end of the first support cylinder (511). An internal tooth (517) is installed on the inner wall of the first cross plate (516). The third gear (515) meshes with the internal tooth (517).

7. A welding clamping device for processing automotive clamp parts according to claim 5, characterized in that: The clamping device (53) includes a support plate (531) fixedly installed on the side of the first cross plate (516) and a sleeve rod (534) movably sleeved on the side of the second cross plate (518). An L-shaped support arm (533) is movably sleeved on the side of the sleeve rod (534), and the side of the L-shaped support arm (533) is movably sleeved with the side of the support plate (531). A rotating arm (532) is movably connected to the side of the support plate (531). A fixed plate (535) is movably sleeved on the side of the rotating arm (532). The side of the fixed plate (535) is movably sleeved with the side of the L-shaped support arm (533). A clamping plate (536) is fixedly installed on the top of the fixed plate (535). A soft rubber plate (537) is fixedly installed on the side of the clamping plate (536). A triggering device (538) is installed on the side of the clamping plate (536). A mating groove (539) is opened on the top of the clamping plate (536).

8. A welding clamping device for processing automotive clamp parts according to claim 7, characterized in that: The triggering device (538) includes a sleeve (5385) fixedly installed on the inner wall of the clamp (536). A contactor (5386) is fixedly installed on the inner side wall of the sleeve (5385). A return spring (5384) is fixedly installed on the inner bottom wall of the sleeve (5385). A support block (5382) is fixedly installed on the top of the return spring (5384). A trigger block (5383) is fixedly installed on the side of the return spring (5384). A contact plate (5381) is fixedly installed on the top of the support block (5382). The contact plate (5381) mates with the mating groove (539).