Rotary clamp for welding machining

Abstract

The utility model discloses a rotary fixture for welding processing, which relates to the technical field of fixtures, and comprises a fixing frame mechanism, a rotary driving mechanism is fixed in the middle of the lower end of the fixing frame mechanism, and the upper end of the fixing frame mechanism is connected with a middle clamping mechanism. According to the welding device, a rotation driving mechanism is arranged, a driving motor drives two sets of rotating rollers to rotate in the same direction, a centering clamping mechanism is arranged, threads on the two sides of a bidirectional symmetrical threaded rod are symmetrical, and therefore sliding assemblies on the two sides can move symmetrically; free rotation of the triangular blocks enables the pressing wheels to be in contact with the side ends of the circular pipes, centering fixing is achieved, rotation clamping of the clamp enables the position and the angle of a welding head to be kept unchanged during circular welding, and meanwhile the two sets of devices are arranged in a matched mode, so that synchronous positioning and butt joint of the two sets of circular pipes can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, specifically a rotating fixture for welding processing. Background Technology

[0002] Round tubes are a common industrial material, widely used in machinery, construction, shipbuilding, automobiles and other fields. Welding is a common way to connect or form round tubes. The welding quality of round tubes directly affects the performance and lifespan of the product, so it is necessary to use appropriate welding processes and equipment.

[0003] A novel circular tube welding fixture, authorized by announcement number CN222114107U, includes a frame assembly and a fixture assembly. The fixture assembly is located inside the frame assembly and includes a clamping frame, an inner groove, a gear ring, a sliding groove, a bottom groove, a slider, an electric rod, a support ring, an infrared transmitter, an infrared receiver, and a fixing pin. The clamping frame is annular, and an inner groove and a sliding groove are provided on the inner circumference of the clamping frame. A gear ring is slidably disposed inside the inner groove. Through the above structure, multiple devices are combined for use. The circular tube is placed in the clamping frame, the support ring lifts the circular tube and centers it, and the infrared transmitters and infrared receivers are used in combination to keep the two circular tubes horizontal. The motor drives the gear ring to rotate, and the welding operation can be completed without the operator moving, improving welding efficiency, reducing welding difficulty, and improving welding quality. Existing circular tube welding fixtures have too large a clamping range and the welding head cannot be kept stationary, making it difficult to maintain the optimal angle and obtain the best welding effect.

[0004] To address the aforementioned problems, a rotating fixture for welding processing is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a rotating fixture for welding processing, which solves the problem that the existing round pipe welding fixtures in the background art have too large a clamping range and the welding head cannot be kept still, making it difficult to maintain the best angle and obtain the best welding effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rotating fixture for welding processing, comprising a fixed frame mechanism, a liftable rotating drive mechanism centrally fixed at the lower end of the fixed frame mechanism, and a centrally adjustable clamping mechanism connected to the upper end of the fixed frame mechanism. The rotating drive mechanism and the centrally clamping mechanism are centrally arranged side by side. The rotating drive mechanism includes a lifting cylinder, a drive motor is provided at the output end of the lifting cylinder, and a rotating roller is provided at the output end of the drive motor. Two sets of rotating rollers are arranged side by side and rotate in the same direction. The centrally clamping mechanism includes a bidirectional symmetrical threaded rod that passes through the fixed frame mechanism. Sliding components are threadedly sleeved on both sides of the bidirectional symmetrical threaded rod. The sliding components include a rotatably arranged triangular block, and pressure rollers are rotatably arranged on both sides of the triangular block.

[0007] Preferably, the fixing frame mechanism includes a fixing platform, and side frames are fixedly installed on both sides of the upper end of the fixing platform.

[0008] Preferably, the fixing frame mechanism further includes a track frame that fixes the two sets of side frames, and the track frame is provided in two sets.

[0009] Preferably, the rotation drive mechanism further includes a base frame fixedly installed at the lower center of the fixed platform, the lifting cylinder is installed at the center of the base frame, and the lifting end of the lifting cylinder is connected to a lifting platform.

[0010] Preferably, the lifting cylinder further includes guide frames disposed at the four corners of the lifting platform, the guide frames being disposed through the fixed platform.

[0011] Preferably, the output end of the drive motor is provided with a belt component, and one side of the two sets of rotating rollers is provided with a belt component.

[0012] Preferably, the outer side of the roller is provided with a circular array of rubber belts.

[0013] Preferably, the central clamping mechanism further includes a side-mounted motor inserted into one side of the bidirectional symmetrical threaded rod, and the side-mounted motor is connected to the side frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. The present invention provides a rotating fixture for welding processing. Through the setting of a rotating drive mechanism, the lifting cylinder drives the rotating roller to rise and fall, which can support the round tube upward. It works in conjunction with the central clamping mechanism to complete the clamping. The drive motor drives two sets of rotating rollers to rotate in the same direction, thereby working with the pressure roller to drive the round tube to rotate. This initially solves the problem that the existing round tube welding fixture has an excessively large clamping range and the welding head cannot be kept still, making it difficult to maintain the best angle and obtain the best welding effect.

[0016] 2. This utility model provides a rotating fixture for welding processing. Through the setting of a central clamping mechanism, the threads on both sides of the bidirectional symmetrical threaded rod are symmetrical, allowing the sliding components on both sides to move symmetrically. The free rotation of the triangular block allows the pressure roller to contact the side end of the round tube, achieving central fixation. The rotating clamping of this fixture allows the position and angle of the welding head to remain unchanged during annular welding. At the same time, two sets of this device can be set together to achieve synchronous positioning and docking of two sets of round tubes. This solves the problem that the existing round tube welding fixture has an excessively large clamping range and the welding head cannot be kept still, making it difficult to maintain the optimal angle and obtain the best welding effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0019] Figure 3 This is a structural schematic diagram of the fixing frame mechanism and the centering clamping mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the rotation drive mechanism of this utility model;

[0021] Figure 5 This is a side view of the rotation drive mechanism of this utility model.

[0022] In the diagram: 1. Fixed frame mechanism; 11. Fixed platform; 12. Side frame; 13. Track frame; 2. Rotation drive mechanism; 21. Base frame; 22. Lifting cylinder; 221. Lifting platform; 222. Guide frame; 23. Drive motor; 231. Belt component; 24. Rotating roller; 241. Rubber belt; 3. Centered clamping mechanism; 31. Side-mounted motor; 32. Bidirectional symmetrical threaded rod; 33. Sliding assembly; 331. Triangular block; 332. Pressure roller. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0025] Combination Figure 1 This utility model discloses a rotating fixture for welding processing, comprising a fixed frame mechanism 1, a liftable rotating drive mechanism 2 centrally fixed at the lower end of the fixed frame mechanism 1, and a centrally adjustable clamping mechanism 3 connected to the upper end of the fixed frame mechanism 1. The rotating drive mechanism 2 and the centrally clamping mechanism 3 are arranged side by side in the center. The rotating drive mechanism 2 includes a lifting cylinder 22, a drive motor 23 is provided at the output end of the lifting cylinder 22, and a rotating roller 24 is provided at the output end of the drive motor 23. Two sets of rotating rollers 24 are arranged side by side and rotate in the same direction. The centrally clamping mechanism 3 includes a bidirectional symmetrical threaded rod 32 that passes through the fixed frame mechanism 1. Sliding components 33 are threadedly sleeved on both sides of the bidirectional symmetrical threaded rod 32. The sliding components 33 include a rotatably arranged triangular block 331, and pressure rollers 332 are rotatably arranged on both sides of the triangular block 331.

[0026] Specifically, the lifting cylinder 22 drives the rotating roller 24 to rise and fall, which can support the round tube upward and cooperate with the centering clamping mechanism 3 to complete the clamping. The drive motor 23 drives the two sets of rotating rollers 24 to rotate in the same direction, thereby cooperating with the pressure roller 332 to drive the round tube to rotate. The threads on both sides of the bidirectional symmetrical threaded rod 32 are symmetrical, so that the sliding components 33 on both sides can move symmetrically. The free rotation of the triangular block 331 allows the pressure roller 332 to contact the side end of the round tube and achieve centering fixation. The rotation clamping of this fixture can keep the position and angle of the welding head unchanged during the annular welding. At the same time, the two sets of this device are set together to achieve synchronous positioning and docking of the two sets of round tubes.

[0027] The present invention will be further described below with reference to the embodiments.

[0028] Example 1:

[0029] Combination Figure 2 The fixed frame mechanism 1 includes a fixed platform 11, and side frames 12 are fixedly installed on both sides of the upper end of the fixed platform 11. The fixed platform 11 supports the rotation drive mechanism 2, and the side frames 12 support the centering clamping mechanism 3. The parallel arrangement of the rotation drive mechanism 2 and the centering clamping mechanism 3 achieves vertical centering positioning.

[0030] The fixed frame mechanism 1 also includes a track frame 13 that is fixedly connected to the two sets of side frames 12. There are two sets of track frames 13, and a cavity is provided between the two sets of track frames 13 to guide the rotation drive mechanism 2.

[0031] Example 2:

[0032] Combination Figures 3-5The rotating drive mechanism 2 also includes a base frame 21 fixedly installed at the lower center of the fixed platform 11, a lifting cylinder 22 installed at the center of the base frame 21, and a lifting platform 221 connected to the lifting end of the lifting cylinder 22. The base frame 21 fixes the lifting cylinder 22, and the lifting cylinder 22 drives the lifting platform 221 to lift and adjust the fixed height of the round tube.

[0033] The lifting cylinder 22 also includes guide frames 222 set at the four corners of the lifting platform 221. The guide frames 222 are set through the fixed platform 11 and guide the lifting platform 221 to move vertically.

[0034] The output end of the drive motor 23 is provided with a belt component 231, and one side of the two sets of rotating rollers 24 is provided with a belt component 231. One set of belt components 231 realizes the rotation drive of the lifting cylinder 22 on the rotating rollers 24, and the other set of belt components 231 realizes the connection of the two sets of rotating rollers 24, so as to realize the same rotation of the two sets of rotating rollers 24.

[0035] Rubber belts 241 are distributed in a circular array on the outer side of the rotating roller 24. The rubber belts 241 increase the friction between the round tube and the rotating roller 24, making it easier to drive the round tube to rotate.

[0036] The central clamping mechanism 3 also includes a side motor 31 inserted into one side of the bidirectional symmetrical threaded rod 32. The side motor 31 is connected to the side frame 12. The side motor 31 drives the bidirectional symmetrical threaded rod 32 to rotate, thereby driving the two sets of sliding components 33 to move towards each other.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotating fixture for welding processing, comprising a fixed frame mechanism (1), characterized in that: The lower end of the fixed frame mechanism (1) is centrally fixed with a liftable rotating drive mechanism (2), and the upper end of the fixed frame mechanism (1) is connected with a centrally adjustable clamping mechanism (3). The rotating drive mechanism (2) and the centrally clamping mechanism (3) are centrally arranged side by side. The rotation drive mechanism (2) includes a lifting cylinder (22), the output end of which is provided with a drive motor (23), the output end of which is provided with a rotating roller (24), and the rotating roller (24) is provided with two sets of rotating rollers (24) arranged side by side in the same direction. The central clamping mechanism (3) includes a bidirectional symmetrical threaded rod (32) that passes through the fixed frame mechanism (1). The two sides of the bidirectional symmetrical threaded rod (32) are threaded with sliding components (33). The sliding components (33) include a rotatably arranged triangular block (331), and pressure rollers (332) are rotatably arranged on both sides of the triangular block (331).

2. The rotating fixture for welding processing according to claim 1, characterized in that: The fixed frame mechanism (1) includes a fixed platform (11), and side frames (12) are fixedly installed on both sides of the upper end of the fixed platform (11).

3. The rotating fixture for welding processing according to claim 2, characterized in that: The fixed frame mechanism (1) also includes a track frame (13) that fixes and connects the two sets of side frames (12), and the track frame (13) is provided in two sets.

4. A rotating fixture for welding processing according to claim 2, characterized in that: The rotation drive mechanism (2) also includes a base frame (21) fixedly installed at the lower center of the fixed platform (11), and the lifting cylinder (22) is installed at the center of the base frame (21). The lifting end of the lifting cylinder (22) is connected to the lifting platform (221).

5. A rotating fixture for welding processing according to claim 4, characterized in that: The lifting cylinder (22) also includes guide frames (222) set at the four corners of the lifting platform (221), and the guide frames (222) are set through the fixed platform (11).

6. A rotating fixture for welding processing according to claim 1, characterized in that: The output end of the drive motor (23) is provided with a belt (231), and one side of the two sets of rotating rollers (24) is provided with a belt (231).

7. A rotating fixture for welding processing according to claim 1, characterized in that: The outer circular array of the roller (24) has rubber belts (241) distributed on it.

8. A rotating fixture for welding processing according to claim 1, characterized in that: The central clamping mechanism (3) also includes a side motor (31) inserted into one side of the bidirectional symmetrical threaded rod (32), and the side motor (31) is connected to the side frame (12).

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