A movable clamping tool and a seat surrounding welding apparatus comprising the tool

The design of the movable clamping fixture solves the problems of incompatibility of the clamping structure with different sizes and uneven cleaning and polishing, realizing efficient clamping, cleaning and polishing of plastic parts in one integrated operation, and improving welding quality and efficiency.

CN122100533APending Publication Date: 2026-05-29SHANGHAI HAN MOLDING SHAPE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI HAN MOLDING SHAPE CO LTD
Filing Date
2026-04-17
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Traditional clamping structures are difficult to accommodate the processing of plastic parts of different sizes. Cleaning methods rely on manual labor or fixed structures, resulting in uneven grinding and affecting welding quality.

Method used

Design a movable clamping fixture that utilizes symmetrically distributed clamping rods, clamping plates, and clamping bars, combined with motor-driven cross plate and sliding rod linkage slider displacement, to achieve stable clamping of plastic parts and translation of cleaning rollers. Equipped with a spring self-cleaning structure, the grinding block achieves reciprocating translation through the drive rod annular groove cooperating with the cross block.

Benefits of technology

It achieves stable clamping of plastic parts of different sizes, and provides comprehensive surface cleaning and uniform polishing, thereby improving welding quality and processing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a movable clamping tool and a seat surrounding welding device containing the tool, which comprises a device body, a supporting seat fixedly connected to the inside of the device body through bolts, a limiting plate arranged on the inner wall of the device body, a cleaning roller arranged above the limiting plate, a polishing block arranged on one side of the cleaning roller, and a clamping assembly arranged in the inside of the device body and used for driving the cleaning roller to displace and driving the polishing block to displace. The movable clamping tool and the seat surrounding welding device containing the tool realize translation through the driving of the cleaning roller by a threaded rod, remove dust and impurities to reduce welding interference, are equipped with spring self-cleaning structures, can clean the attached dust, and guarantee sustainable cleaning effect. The polishing block realizes reciprocating translation by the cooperation of a driving rod ring groove and a cross block, ensures that the welding position is smooth and flat, and effectively improves the processing quality of plastic parts. The universality of the lifting device is improved, and the processing efficiency and the processing quality are improved.
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Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, specifically to a movable clamping fixture and a seat surround welding device containing the fixture. Background Technology

[0002] Seat surround welding equipment is a core piece of equipment in seat production and processing. Its core function is to splice and fix various plastic parts of the seat surround (such as seat side panels, front and rear surrounds, decorative parts, etc.) through welding process, so that the scattered plastic parts form a complete and solid seat surround structure. At the same time, it ensures the sealing, flatness and structural strength of the weld joint, meets the assembly requirements and durability of the seat surround, and provides a guarantee for the overall molding and safety performance of the seat. In the seat surround welding process, movable clamping fixtures are indispensable supporting components. Therefore, a movable clamping fixture and a seat surround welding equipment containing such fixtures are needed.

[0003] Although the device has many beneficial effects, it still has the following problems: the clamping structure design of traditional tooling is mostly incompatible with the processing of plastic parts of different sizes, and in the cleaning process before welding, traditional cleaning methods are mostly manual wiping or fixed cleaning structures, which is quite troublesome; at the same time, in the grinding process after welding, traditional grinding structures are mostly fixed or unidirectional grinding, which makes it difficult to achieve the reciprocating translation of the grinding block, resulting in uneven and insufficient grinding at the weld joint of the plastic part, making it difficult to ensure that the weld joint is flat and smooth, thus affecting the processing quality of the plastic part. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of the embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] 1. Technical problems to be solved: To address the problems mentioned above, such as the cumbersome nature of manual wiping or fixed cleaning structures and the difficulty in achieving reciprocating horizontal movement of the grinding block, which leads to uneven grinding at the welded joints of plastic parts, this invention is proposed.

[0006] 2. Technical Solution: To address the aforementioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: A movable clamping fixture includes a device body and a support base fixedly connected to the inside of the device body by bolts. It also includes: a limiting plate disposed on the inner wall of the device body; a cleaning roller disposed above the limiting plate; a grinding block disposed on one side of the cleaning roller; and a clamping assembly disposed inside the device body for driving the cleaning roller to move and simultaneously driving the grinding block to move.

[0007] In a preferred embodiment of the present invention, the clamping assembly further includes a clamping rod, a clamping plate being movably connected to the side wall of the clamping rod via a bearing, a clamping strip being movably connected to the side wall of the clamping plate via a bearing, a slider being movably connected to one side of the clamping strip via a bearing, and a locking block being movably connected to the side wall of the clamping plate via a bearing.

[0008] In a preferred embodiment of the present invention, there are multiple clamping rods, clamping bars, and clamping plates, and the clamping rods, clamping bars, and clamping plates are all symmetrically distributed.

[0009] In a preferred embodiment of the present invention, the bottom of the limiting plate is provided with a sliding groove, the slider is slidably connected to the inner wall of the sliding groove, and the locking block is fixedly connected to the inner wall of the sliding groove by bolts.

[0010] In a preferred embodiment of the present invention, a protruding plate is fixedly connected to the side wall of the limiting plate by bolts, a cross plate is coaxially connected to the side wall of the protruding plate, a sliding rod is sleeved on the surface of the cross plate, and the sliding rod is inserted into the inner wall of the slider.

[0011] In a preferred embodiment of the present invention, the top of the limiting plate is fixedly connected to a mounting base by bolts, the inner wall of the mounting base is fixedly connected to a threaded rod by bolts, the outer circumferential wall of the threaded rod is threadedly connected to a movable block, and the side wall of the movable block is fixedly connected to the cleaning roller by bolts.

[0012] In a preferred embodiment of the present invention, the top of the limiting plate is fixedly connected to a limiting seat by bolts, the side wall of the limiting seat is provided with a groove, the side wall of the cleaning roller is fixedly connected to a mounting plate by bolts, a spring is welded to the inner wall of the groove, and the side wall of the mounting plate abuts against the spring.

[0013] In a preferred embodiment of the present invention, the inner wall of the limiting seat is provided with a transverse groove, the inner wall of the transverse groove is fixedly connected to a drive rod by bolts, the outer circumferential wall of the drive rod is provided with an annular groove, a transverse block is movably sleeved on the outer circumferential wall of the drive rod, and the bottom of the transverse block is fixedly connected to the grinding block by bolts.

[0014] In a preferred embodiment of the present invention, a horizontal plate is fixedly connected to the top of the limiting seat by bolts, and a square groove is provided inside the horizontal plate, with the horizontal block movably sleeved on the inner wall of the square groove.

[0015] In a preferred embodiment of the present invention, a support base is fixedly connected to the top of the base plate by bolts, a support rod is movably connected to the inner wall of the support base by bearings, a fixing rod is movably connected to one end of the support rod by bearings, and a fixing plate is movably connected to one end of the fixing rod by bearings.

[0016] In a preferred embodiment of the present invention, a motor is fixedly connected to the side wall of the fixing plate by bolts, and the output shaft of the motor is inserted into the cross plate.

[0017] In a preferred embodiment of the present invention, a seat surround welding apparatus includes the movable clamping fixture described in any one of the above embodiments.

[0018] 3. Beneficial effects: Compared with the prior art, the beneficial effects of the present invention are: This type of movable clamping fixture utilizes a symmetrically distributed design of clamping rods, plates, and bars. Combined with a motor-driven cross plate and sliding rod linkage to move the slider, and a structure that integrates the slider's sliding along the groove and the limiting block, it achieves stable, opposing clamping of plastic parts, preventing clamping deviation and adapting to different sized plastic parts. Simultaneously, a threaded rod drives a cleaning roller to achieve translation, thus thoroughly cleaning the surface of the plastic part, removing dust and impurities to reduce welding interference. It also features a spring-driven self-cleaning structure that removes its own adhering dust, ensuring continuous cleaning effectiveness. The grinding block reciprocates and translates using the cooperation of the drive rod's ring groove and the cross block, ensuring a smooth and even weld joint and effectively improving the processing quality of the plastic part. Through the versatility of the lifting device, it can efficiently complete the integrated operation of clamping, cleaning, and grinding of plastic parts before and after welding, improving processing efficiency and quality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the robotic arm in this invention; Figure 3 This is a schematic diagram of the clamping strip structure in this invention; Figure 4This is a schematic diagram of the chute structure in this invention; Figure 5 This is a schematic diagram of the cleaning roller structure in this invention; Figure 6 This is a cross-sectional schematic diagram of the limiting seat structure in this invention.

[0020] The following are the labeling instructions in the diagram: 1. Equipment body; 2. Motor; 21. Base plate; 22. Support seat; 23. Support rod; 24. Fixing rod; 25. Fixing plate; 3. Clamping assembly; 31. Limiting plate; 32. Slide groove; 321. Protruding plate; 322. Cross plate; 323. Slide rod; 33. Sliding block; 331. Clamping strip; 332. Clamping plate; 333. Locking block; 334. Clamping rod; 34. Mounting seat; 341. Threaded rod; 342. Moving block; 343. Cleaning roller; 344. Mounting plate; 345. Spring; 346. Groove; 35. Limiting seat; 351. Horizontal groove; 352. Drive rod; 353. Circular groove; 354. Horizontal block; 355. Grinding block; 356. Horizontal plate; 357. Square groove. Detailed Implementation

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] This invention is described in detail with reference to the schematic diagrams. When describing the embodiments of this invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this invention. In actual fabrication, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0023] The orientation or positional relationship indicated in the terminology is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description, and is not intended to indicate or imply that the device or element 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 the invention.

[0024] The term "connection method" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

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

[0026] This invention provides an overall structural schematic diagram of an embodiment of a movable clamping fixture and a seat surround welding device containing the fixture, comprising: Please see Figures 1-6 The present invention provides a technical solution: See also Figure 1 Figure 6 As shown, a movable clamping fixture includes a device body 1 and a support base 22 fixedly connected to the inside of the device body 1 by bolts. It also includes: a limiting plate 31 disposed on the inner wall of the device body 1; a cleaning roller 343 disposed above the limiting plate 31; a grinding block 355 disposed on one side of the cleaning roller 343; and a clamping assembly 3 disposed inside the device body 1 for driving the cleaning roller 343 to move and simultaneously driving the grinding block to move. This facilitates the use of the threaded rod 341 to drive the cleaning roller 343 to move for cleaning. After welding, the cross block 354 is slidably connected to the drive rod 352 to grind the welded material.

[0027] See also Figure 2 Figure 3 As shown, the clamping assembly 3 also includes a clamping rod 334. The side wall of the clamping rod 334 is movably connected to a clamping plate 332 via a bearing. The side wall of the clamping plate 332 is movably connected to a clamping strip 331 via a bearing. One side of the clamping strip 331 is movably connected to a slider 33 via a bearing. The side wall of the clamping plate 332 is movably connected to a locking block 333 via a bearing. This facilitates driving the slider 33 to achieve the displacement of the clamping strip 331, thereby clamping the plastic part to be welded.

[0028] See also Figure 2 As shown, there are multiple clamping rods 334, clamping strips 331 and clamping plates 332. The clamping rods 334, clamping strips 331 and clamping plates 332 are symmetrically distributed, which facilitates the opposite clamping of plastic parts.

[0029] See also Figure 2 Figure 3 As shown, a groove 32 is provided at the bottom of the limiting plate 31, the slider 33 is slidably connected to the inner wall of the groove 32, and the locking block 333 is fixedly connected to the inner wall of the groove 32 by bolts, thereby facilitating the stability of the slider 33 during the displacement process.

[0030] See also Figure 2 Figure 4 As shown, a protruding plate 321 is fixedly connected to the side wall of the limiting plate 31 by bolts. A cross plate 322 is coaxially connected to the side wall of the protruding plate 321. A sliding rod 323 is sleeved on the surface of the cross plate 322. The sliding rod 323 is inserted into the inner wall of the slider 33, thereby facilitating the rotation of the slider 33 by using the sliding rod 323, thereby realizing the adjustment of the clamping distance.

[0031] See also Figure 2As shown in Figure 5, the top of the limiting plate 31 is fixedly connected to the mounting base 34 by bolts. The inner wall of the mounting base 34 is fixedly connected to the threaded rod 341 by bolts. The outer circumference of the threaded rod 341 is threadedly connected to the moving block 342. The side wall of the moving block 342 is fixedly connected to the cleaning roller 343 by bolts. This facilitates the cleaning roller 343 to clean the surface dust of the clamped plastic part and reduce interference with subsequent welding.

[0032] See also Figure 2 Figure 5 As shown, the top of the limiting plate 31 is fixedly connected to the limiting seat 35 by bolts. The side wall of the limiting seat 35 is provided with a groove 346. The side wall of the cleaning roller 343 is fixedly connected to the mounting plate 344 by bolts. The inner wall of the groove 346 is welded with a spring 345. The side wall of the mounting plate 344 abuts against the spring 345. This makes it convenient to clean the body of the cleaning roller 343 by the elastic force of the spring 345 after the cleaning roller 343 has finished cleaning, thereby reducing interference with subsequent cleaning.

[0033] See also Figure 2 Figure 6 As shown, the inner wall of the limiting seat 35 is provided with a transverse groove 351. The inner wall of the transverse groove 351 is fixedly connected to the drive rod 352 by bolts. The outer circumferential wall of the drive rod 352 is provided with an annular groove 353. A transverse block 354 is movably sleeved on the outer circumferential wall of the drive rod 352. The bottom of the transverse block 354 is fixedly connected to the grinding block 355 by bolts, which facilitates the reciprocating translation of the grinding block 355, so that the plastic part is fully ground.

[0034] See also Figure 6 As shown, a horizontal plate 356 is fixedly connected to the top of the limiting seat 35 by bolts. A square groove 357 is provided inside the horizontal plate 356. The horizontal block 354 is movably sleeved on the inner wall of the square groove 357, which facilitates the back-and-forth movement of the grinding block 355 on the top of the clamped plastic part, so that the plastic part can be fully ground.

[0035] See also Figure 2 As shown, a support base 22 is fixedly connected to the top of the base plate 21 by bolts. A support rod 23 is movably connected to the inner wall of the support base 22 by bearings. A fixing rod 24 is movably connected to one end of the support rod 23 by bearings. A fixing plate 25 is movably connected to one end of the fixing rod 24 by bearings, thereby facilitating the adjustment of the height and position of the entire device.

[0036] See also Figure 2 Figure 4 As shown, the side wall of the fixed plate 25 is fixedly connected to the motor 2 by bolts. The output shaft of the motor 2 is inserted into the cross plate 322, which facilitates the use of the motor to drive the slide bar 323 to rotate, thereby driving subsequent operations.

[0037] This type of movable clamping fixture is installed inside the seat surround welding equipment.

[0038] In addition, the circuits, electronic components and modules involved in this invention are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this invention does not involve any improvement to the internal structure and method.

[0039] Combination Figures 1-6 The following is a detailed description of the use of a movable clamping fixture and a seat surround welding device containing the fixture, as described in this embodiment: 1. In actual use, the operator moves the device to a suitable position and, according to the size of the plastic part and the welding operation requirements, adjusts the relative angle and length of the support rod 23 and the fixed rod 24 to adjust the height and horizontal position of the entire device, so that the clamping component 3, the cleaning roller 343 and the grinding block 355 are all aligned with the position of the plastic part to be processed. After adjustment, the motor 2 is started. The output shaft of the motor 2 drives the cross plate 322 to rotate. The cross plate 322 drives the sliding rod 323 sleeved on the surface to rotate. The sliding rod 323 is linked to the slider 33 inserted into its inner wall, so that the slider 33 slides smoothly in the groove 32 at the bottom of the limiting plate 31 (the locking block 333 limits the slider 33 to avoid...). (Without offset) When the slider 33 slides, it drives the clamping strip 331 connected to it via the bearing to move. The clamping strip 331 is linked with the clamping plate 332 and the clamping rod 334. Since the clamping rod 334, clamping strip 331 and clamping plate 332 are symmetrically distributed, the clamping strips 331 on both sides move synchronously in opposite directions until they tightly clamp the plastic part to be welded. After clamping is completed, the motor 2 pauses to maintain the clamping state and starts the threaded rod 341. The rotation of the threaded rod 341 drives the moving block 342 on its outer circumference to move. The moving block 342 drives the cleaning roller 343 fixed on the side wall to move synchronously. The cleaning roller 343 rotates during the displacement, thereby cleaning the surface of the clamped plastic part of dust and impurities to ensure the surface of the plastic part is clean. The surface is clean, reducing interference in subsequent welding processes. After cleaning, the device moves the clamped plastic part to a suitable position for welding. At this time, the moving block 342 drives the cleaning roller 343 to reset. As a result, the mounting plate 344 on the side wall of the cleaning roller 343 presses the spring 345 in the groove 346 of the limiting seat 35. The elastic force of the spring 345 reacts to the mounting plate 344, thereby cleaning the dust attached to the surface of the cleaning roller 343, realizing the self-cleaning of the cleaning roller 343 and avoiding affecting subsequent cleaning operations. After the plastic part is welded, the drive rod 352 is activated. When the drive rod 352 rotates, the annular groove 353 on its outer circumference drives the movable sleeved cross block 354 along the drive rod. 352 moves axially in a reciprocating translational motion, while the horizontal block 354 slides in the square groove 357 of the horizontal plate 356, limiting the displacement trajectory of the grinding block 355. This causes the grinding block 355 at the bottom of the horizontal block 354 to move back and forth on the top of the clamped plastic part, thoroughly grinding the surface of the welded plastic part to ensure that the weld joint is flat and meets the processing requirements. After the overall grinding is completed, the drive rod 352 and threaded rod 341 are turned off, and the motor 2 is restarted to drive the slider 33 to slide in the reverse direction, causing the clamping bar 331 and clamping plate 332 to reset, releasing the clamping of the plastic part, and taking out the processed plastic part. Then the motor 2 is turned off, and all components of the device are reset to complete one complete processing operation.

[0040] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, as long as there is no structural conflict, the features in the disclosed embodiments can be combined with each other in any manner. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A movable clamping fixture, comprising a device body and a support base fixedly connected to the inside of the device body by bolts, characterized in that, Also includes: A limiting plate is provided on the inner wall of the device body; A cleaning roller is positioned above the limiting plate; A polishing block is disposed on one side of the cleaning roller; The clamping assembly, located inside the main body of the device, is used to drive the cleaning roller to move and simultaneously drive the punching module to move.

2. The movable clamping fixture according to claim 1, characterized in that, The clamping assembly further includes a clamping rod, a clamping plate being movably connected to the side wall of the clamping rod via a bearing, a clamping strip being movably connected to the side wall of the clamping plate via a bearing, a slider being movably connected to one side of the clamping strip via a bearing, and a locking block being movably connected to the side wall of the clamping plate via a bearing.

3. The movable clamping fixture according to claim 2, characterized in that, There are multiple clamping rods, clamping bars, and clamping plates, and the clamping rods, clamping bars, and clamping plates are all symmetrically distributed.

4. The movable clamping fixture according to claim 2, characterized in that, The bottom of the limiting plate is provided with a sliding groove, the slider is slidably connected to the inner wall of the sliding groove, and the locking block is fixedly connected to the inner wall of the sliding groove by bolts.

5. The movable clamping fixture according to claim 4, characterized in that, The side wall of the limiting plate is fixedly connected to a protruding plate by bolts. The side wall of the protruding plate is coaxially connected to a cross plate. A sliding rod is sleeved on the surface of the cross plate and inserted into the inner wall of the slider.

6. The movable clamping fixture according to claim 1, characterized in that, The top of the limiting plate is fixedly connected to a mounting base by bolts. The inner wall of the mounting base is fixedly connected to a threaded rod by bolts. The outer circumference of the threaded rod is threadedly connected to a moving block. The side wall of the moving block is fixedly connected to the cleaning roller by bolts.

7. The movable clamping fixture according to claim 6, characterized in that, The top of the limiting plate is fixedly connected to the limiting seat by bolts. The side wall of the limiting seat has a groove. The side wall of the cleaning roller is fixedly connected to the mounting plate by bolts. A spring is welded to the inner wall of the groove. The side wall of the mounting plate abuts against the spring.

8. The movable clamping fixture according to claim 7, characterized in that, The inner wall of the limiting seat is provided with a horizontal groove, and a drive rod is fixedly connected to the inner wall of the horizontal groove by bolts. The outer circumference of the drive rod is provided with an annular groove, and a horizontal block is movably sleeved on the outer circumference of the drive rod. The bottom of the horizontal block is fixedly connected to the grinding block by bolts.

9. A movable clamping fixture according to claim 8, characterized in that, The top of the limiting seat is fixedly connected to a horizontal plate by bolts. The horizontal plate has a square groove inside, and the horizontal block is movably sleeved on the inner wall of the square groove.

10. A movable clamping fixture according to claim 5, characterized in that, The top of the base plate is fixedly connected to a support base by bolts. The inner wall of the support base is movably connected to a support rod by a bearing. One end of the support rod is movably connected to a fixing rod by a bearing. One end of the fixing rod is movably connected to a fixing plate by a bearing.

11. A movable clamping fixture according to claim 10, characterized in that, A motor is fixedly connected to the side wall of the fixing plate by bolts, and the output shaft of the motor is inserted into the cross plate.

12. A seat surround welding device, characterized in that, It includes the movable clamping fixture as described in any one of claims 1-11.