Workpiece fixing mechanism for circumferential weld machining

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By designing a workpiece fixing mechanism for circular weld processing of steel pipe welding, using components such as servo motors, threaded rods, and rotating rollers, the stable fixation and flexible rotation of the steel pipe are achieved, and the problem of low efficiency in adjusting the welding position is solved. Significantly improves welding efficiency.

CN222370792UActive Publication Date: 2025-01-21HEFEI WANYI WELDING EQUIP CO LTD

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Patent Information

Application Number: CN202323548255.5
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2023-12-26
Publication Date: 2025-01-21
Estimated Expiration: 2033-12-26

AI Technical Summary

Technical Problem

During the steel pipe welding process, it is difficult for the prior art to achieve flexible rotation of the steel pipe, resulting in low efficiency in adjusting the welding position, and it is necessary to frequently unfix and re-adjust the position.

Method used

A workpiece fixing mechanism for circular weld processing is designed, which includes a workbench, support feet, moving components and clamping components. It uses components such as servo motors, threaded rods and rotating rollers to achieve stable fixation and flexible rotation of the steel pipe.

Benefits of technology

This fixing mechanism allows the steel pipe to rotate flexibly while maintaining a stable fixed state, avoiding the process of frequent unfixing and re-adjustment, and significantly improves welding efficiency.

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Abstract

The utility model discloses a work piece fixing mechanism for circumferential weld processing in the circumferential weld processing field, which comprises a work table, support legs, a moving assembly and a clamping assembly, the support legs are fixedly connected to the four corners of the bottom of the work table, the moving assembly is slidably connected to the top of the work table, and the clamping assembly is fixedly connected to the bottom of the work table. According to the workpiece fixing mechanism for circumferential weld machining, a steel pipe is placed on the inner side of the mounting frame, a servo motor is started, a first threaded rod is driven to rotate through rotation of the servo motor, and a threaded cylinder is driven to move when the first threaded rod rotates by utilizing limitation of a limiting rod, so that a connecting plate is driven to move, and a rotating roller moves; and when the welding position needs to be changed, only the steel pipe needs to be rotated, and the steel pipe is rotated by utilizing the rotating roller, so that the situation that the steel pipe is detached, changed in position and fixed again is avoided, welding is facilitated, and the welding efficiency is improved.

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Description

Technical Field

[0001] The utility model relates to the technical field of annular weld processing, in particular to a workpiece fixing mechanism for annular weld processing. Background Art

[0002] Circumferential welding is welding between various circles, usually between two steel pipes. The weld formed by welding is a closed circular ring. During the welding process of steel pipes, the two steel pipes to be welded need to be relatively fixed, and the welding surfaces need to be pieced together before welding. The welding surface must remain stable during welding.

[0003] At present, when welding steel pipes, most of the time, the steel pipes need to be fixed first and then welded. However, it is inconvenient to rotate the steel pipes after they are fixed. Therefore, when the welding position needs to be adjusted, the steel pipes can only be released and then the position can be readjusted and fixed again, which makes the welding efficiency low. For this reason, we propose a workpiece fixing mechanism for annular weld processing. Utility Model Content

[0004] The utility model aims to provide a workpiece fixing mechanism for annular weld processing, so as to solve the problem raised in the above-mentioned background technology that when welding a steel pipe, when it is necessary to adjust the welding position, the steel pipe can only be released and then the position is readjusted and fixed again, which makes the welding efficiency low.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a workpiece fixing mechanism for annular weld processing, comprising a workbench, a supporting foot, a moving assembly and a clamping assembly, wherein the supporting foot is fixedly connected to the four corners of the bottom of the workbench, the moving assembly is slidably connected to the top of the workbench, the clamping assembly is fixedly connected to the middle of the top of the moving assembly and the middle of the right side of the top of the workbench, the clamping assembly comprises a supporting table, a mounting frame, a fixing frame, a servo motor, a first threaded rod, a threaded cylinder, a connecting plate, a limiting rod, a mounting seat and a rotating roller, the middle of the top of the moving assembly and the top of the workbench A support platform is fixedly connected to the middle part of the right side, a mounting frame is fixedly connected to the top of the support platform, a fixing frame is evenly fixedly connected to the outside of the fixing frame, a servo motor is fixedly connected to the middle part of the top of the fixing frame, an output shaft end of the servo motor passes through the middle part of the inner top of the fixing frame and is fixedly connected to a first threaded rod, a threaded barrel is screwed to the outside of the first threaded rod through a thread, a connecting plate is fixedly connected to the bottom end of the threaded barrel, a limiting rod is symmetrically fixedly connected to the top of the connecting plate, a mounting seat is fixedly connected to the middle part of the front and rear parts of the bottom of the connecting plate, and rotating rollers are rotatably connected to the opposite sides of the mounting seats at the front and rear parts through a damping shaft.

[0006] As a further description of the above technical solution:

[0007] The input end of the servo motor is electrically connected to the output end of the external power supply, and the threaded barrel penetrates the inner side of the installation frame and is slidably connected to the installation frame.

[0008] As a further description of the above technical solution:

[0009] The limiting rod passes through the outside of the installation frame, and the other end of the limiting rod is fixedly connected with a baffle, and the limiting rod is slidably connected to the installation frame.

[0010] As a further description of the above technical solution:

[0011] The interval between two adjacent rotating rollers is one hundred and twenty degrees, and the rotating rollers are located inside the installation frame.

[0012] As a further description of the above technical solution:

[0013] The moving assembly includes a mounting groove, a second threaded rod, a turntable, a moving block, a limit block and a limit groove. A mounting groove is provided in the middle of the top of the workbench, a second threaded rod is provided in the middle of the left and right parts of the mounting groove for rotation connection, a turntable is fixedly connected to both ends of the second threaded rod, a moving block is screwed on the outer side of the second threaded rod through a thread, a limit block is fixedly connected to the middle of the front and rear sides of the moving block, and a limit groove is provided in the middle of the front and rear sides of the mounting groove.

[0014] As a further description of the above technical solution:

[0015] The limiting block is slidably connected to the inside of the limiting groove, and the left clamping assembly is fixedly connected to the top middle part of the moving block.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The workpiece fixing mechanism for annular weld processing places a steel pipe on the inner side of a mounting frame, starts a servo motor, and drives the first threaded rod to rotate through the rotation of the servo motor. By utilizing the limitation of the limit rod, when the first threaded rod rotates, the threaded barrel is driven to move, thereby driving the connecting plate to move, so that the rotating roller moves, and the rotating roller is fitted with the outer side of the steel pipe to fix the steel pipe. When the welding position needs to be changed, it is only necessary to rotate the steel pipe and use the rotating roller to rotate the steel pipe, thereby avoiding the need to remove the steel pipe, change its position, and re-fix it, thereby facilitating welding and improving welding efficiency.

[0018] 2. The workpiece fixing mechanism for processing annular welds drives the second threaded rod to rotate by rotating the turntable. By utilizing the cooperation between the limit block and the limit groove, when the second threaded rod rotates, the moving block is driven to move, so that the left clamping assembly drives the left steel pipe to move, so that the left and right steel pipe welding ports are aligned, thereby facilitating the alignment of the steel pipes and facilitating welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a workpiece fixing mechanism for annular weld processing proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of a clamping assembly of a workpiece fixing mechanism for annular weld processing proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of a moving component of a workpiece fixing mechanism for annular weld processing proposed by the utility model;

[0022] Figure 4 The utility model is a right side structural schematic diagram of a workpiece fixing mechanism for annular weld processing.

[0023] In the figure: 100, workbench; 200, supporting foot; 300, moving assembly; 310, mounting groove; 320, second threaded rod; 330, turntable; 340, moving block; 350, limiting block; 360, limiting groove; 400, clamping assembly; 410, supporting table; 420, mounting frame; 430, fixing frame; 440, servo motor; 450, first threaded rod; 460, threaded cylinder; 470, connecting plate; 480, limiting rod; 490, mounting seat; 491, rotating roller. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The utility model provides a workpiece fixing mechanism for annular weld processing, which facilitates the rotation of the steel pipe and avoids the need to remove the steel pipe to change its position and re-fix it, making welding more convenient and improving welding efficiency. Figure 1-4 , including a workbench 100, a supporting leg 200, a moving assembly 300 and a clamping assembly 400;

[0028] Please refer again Figure 1 , the workbench 100 is used to install the supporting foot 200, the moving assembly 300 and the clamping assembly 400;

[0029] Please refer again Figure 1 The supporting feet 200 are fixedly connected to the four corners of the bottom of the workbench 100 for supporting the device, the moving assembly 300 is slidably connected to the top of the workbench 100 for aligning the steel pipes, and the clamping assembly 400 is fixedly connected to the middle of the top of the moving assembly 300 and the middle of the right side of the top of the workbench 100;

[0030] Please refer again Figure 2 , the clamping assembly 400 includes a support platform 410, a mounting frame 420, a fixing frame 430, a servo motor 440, a first threaded rod 450, a threaded cylinder 460, a connecting plate 470, a limiting rod 480, a mounting seat 490 and a rotating roller 491;

[0031] Please refer again Figure 2 A support platform 410 is fixedly connected to the middle of the top of the moving component 300 and the middle of the right side of the top of the workbench 100. A mounting frame 420 is fixedly connected to the top of the support platform 410. A fixing frame 430 is evenly fixedly connected to the outside of the mounting frame 420. A servo motor 440 is fixedly connected to the middle of the top of the fixing frame 430.

[0032] Please refer again Figure 2 The output shaft end of the servo motor 440 passes through the middle of the top inner side of the fixed frame 430 and is fixedly connected to the first threaded rod 450. The outer side of the first threaded rod 450 is screwed with a threaded cylinder 460. The bottom end of the threaded cylinder 460 is fixedly connected to a connecting plate 470. The top of the connecting plate 470 is symmetrically fixedly connected to a limiting rod 480. The middle of the front and rear parts of the bottom of the connecting plate 470 is fixedly connected to a mounting seat 490. The opposite sides of the front and rear mounting seats 490 are rotatably connected to a rotating roller 491 through a damping shaft.

[0033] To summarize, by placing the steel pipe inside the installation frame 420, starting the servo motor 440, and rotating the servo motor 440, the first threaded rod 450 is driven to rotate, and by utilizing the limitation of the limit rod 480, when the first threaded rod 450 rotates, the threaded cylinder 460 is driven to move, thereby driving the connecting plate 470 to move, so that the rotating roller 491 moves, and the rotating roller 491 is fit with the outside of the steel pipe to fix the steel pipe. When the welding position needs to be changed, it is only necessary to rotate the steel pipe and use the rotating roller 491 to rotate the steel pipe, thereby avoiding the need to remove the steel pipe, change its position, and re-fix it, thereby facilitating welding and improving welding efficiency.

[0034] Please refer again Figure 2 The input end of the servo motor 440 is electrically connected to the output end of the external power supply, and the threaded tube 460 passes through the inner side of the installation frame 420 and is slidably connected to the installation frame 420 .

[0035] Please refer again Figure 2 The limiting rod 480 passes through the outside of the installation frame 420, and the other end of the limiting rod 480 is fixedly connected to a baffle, and the limiting rod 480 is slidably connected to the installation frame 420.

[0036] Please refer again Figure 4 The interval between two adjacent rotating rollers 491 is one hundred and twenty degrees, and the rotating rollers 491 are located inside the mounting frame 420 .

[0037] Please refer again Figure 3The moving assembly 300 includes a mounting groove 310, a second threaded rod 320, a turntable 330, a moving block 340, a limit block 350 and a limit groove 360. The middle part of the top of the workbench 100 is provided with a mounting groove 310, and the middle part of the left and right parts of the mounting groove 310 is rotatably connected with the second threaded rod 320. The two ends of the second threaded rod 320 are fixedly connected with the turntable 330. The outer side of the second threaded rod 320 is screwed with a moving block 340 through a thread. The middle part of the front and rear sides of the moving block 340 is fixedly connected with the limit block 350, and the middle part of the front and rear sides of the mounting groove 310 is provided with a limit groove 360.

[0038] Please refer again Figure 3 The limiting block 350 is slidably connected to the inside of the limiting groove 360 , and the left clamping assembly 400 is fixedly connected to the top middle part of the moving block 340 .

[0039] To summarize, by rotating the turntable 330, the second threaded rod 320 is driven to rotate, and by utilizing the cooperation between the limit block 350 and the limit groove 360, when the second threaded rod 320 rotates, the moving block 340 is driven to move, so that the left clamping assembly 400 drives the left steel pipe to move, so that the left and right steel pipe welding ports are aligned, thereby facilitating the alignment of the steel pipes and facilitating welding.

[0040] During specific use, when fixing the welding machine, personnel skilled in the art place the steel pipe inside the mounting frame 420 and start the servo motor 440. The rotation of the servo motor 440 drives the first threaded rod 450 to rotate. By utilizing the limitation of the limit rod 480, when the first threaded rod 450 rotates, the threaded cylinder 460 is driven to move, thereby driving the connecting plate 470 to move, so that the rotating roller 491 moves, and the rotating roller 491 fits the outer side of the steel pipe to fix the steel pipe. Then, the turntable 330 is rotated to drive the second threaded rod 320 to rotate. By utilizing the cooperation between the limit block 350 and the limit groove 360, when the second threaded rod 320 rotates, the moving block 340 is driven to move, so that the left clamping assembly 400 drives the left steel pipe to move, so that the left and right steel pipe welding ports are aligned, thereby welding the interface of the steel pipe. When the welding position needs to be changed, it is only necessary to rotate the steel pipe, and the rotating roller 491 is used to rotate the steel pipe to change the welding position.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A workpiece fixing mechanism for annular weld processing, characterized in that: The invention comprises a workbench (100), a supporting foot (200), a moving assembly (300) and a clamping assembly (400), wherein the supporting foot (200) is fixedly connected to the four corners of the bottom of the workbench (100), the moving assembly (300) is slidably connected to the top of the workbench (100), the clamping assembly (400) is fixedly connected to the middle of the top of the moving assembly (300) and the middle of the right side of the top of the workbench (100), the clamping assembly (400) comprises a supporting platform (410), a mounting frame (420), a fixing frame (430), a servo motor (440), a first threaded rod (450), a threaded cylinder (460), a connecting plate (470), a limiting rod (480), a mounting seat (490) and a rotating roller (491), the middle of the top of the moving assembly (300) and the middle of the right side of the top of the workbench (100) are fixedly connected A support platform (410) is provided, wherein a mounting frame (420) is fixedly connected to the top of the support platform (410), a fixing frame (430) is evenly fixedly connected to the outside of the fixing frame (420), a servo motor (440) is fixedly connected to the middle of the top of the fixing frame (430), an output shaft end of the servo motor (440) passes through the middle of the top of the inner side of the fixing frame (430), and is fixedly connected to a first threaded rod (450), a threaded cylinder (460) is screwed to the outside of the first threaded rod (450) through a thread, a connecting plate (470) is fixedly connected to the bottom end of the threaded cylinder (460), a limiting rod (480) is symmetrically fixedly connected to the top of the connecting plate (470), a mounting seat (490) is fixedly connected to the middle of the front and rear parts of the bottom of the connecting plate (470), and a rotating roller (491) is rotatably connected to the opposite sides of the mounting seat (490) at the front and rear parts through a damping shaft.

2. The workpiece fixing mechanism for annular weld processing according to claim 1, characterized in that: The input end of the servo motor (440) is electrically connected to the output end of an external power source, and the threaded barrel (460) passes through the inner side of the installation frame (420) and is slidably connected to the installation frame (420).

3. The workpiece fixing mechanism for annular weld processing according to claim 1, characterized in that: The limiting rod (480) passes through the outside of the installation frame (420), and the other end of the limiting rod (480) is fixedly connected to a baffle, and the limiting rod (480) is slidably connected to the installation frame (420).

4. The workpiece fixing mechanism for annular weld processing according to claim 1, characterized in that: The interval between two adjacent rotating rollers (491) is one hundred and twenty degrees, and the rotating rollers (491) are located inside the installation frame (420).

5. The workpiece fixing mechanism for annular weld processing according to claim 1, characterized in that: The moving assembly (300) comprises a mounting groove (310), a second threaded rod (320), a rotating disk (330), a moving block (340), a limiting block (350) and a limiting groove (360); the middle part of the top of the workbench (100) is provided with a mounting groove (310); the middle part of the left and right parts of the mounting groove (310) is provided with a second threaded rod (320) which is rotatably connected; the two ends of the second threaded rod (320) are fixedly connected with the rotating disk (330); the outer side of the second threaded rod (320) is screwed with a moving block (340) by means of a thread; the middle part of the front and rear sides of the moving block (340) is fixedly connected with the limiting block (350); the middle part of the front and rear sides of the mounting groove (310) is provided with a limiting groove (360).

6. The workpiece fixing mechanism for annular weld processing according to claim 5, characterized in that: The limiting block (350) is slidably connected to the inside of the limiting groove (360), and the left clamping assembly (400) is fixedly connected to the top middle part of the moving block (340).