Automatic welding positioning clamp

Abstract

The utility model relates to the technical field of automatic welding, in particular to an automatic welding positioning clamp which comprises a base and two pipe fittings, a limiting structure is arranged on the surface of the base and comprises a servo motor, the servo motor is fixedly connected with the surface of the base, the output end of the servo motor is fixedly connected with a gear, and the gear is fixedly connected with the base. Two sawtooth plates are meshed with the tooth surface of the gear, driving rods are fixedly connected to the ends, away from each other, of the two sawtooth plates, the driving rods slidably penetrate through the base, driving plates are fixedly connected to the ends, away from the sawtooth plates, of the driving rods, two arc-shaped plates are fixedly connected to the surface of the base, and the pipe fittings are located in the arc-shaped plates. A rectangular hole is formed in the surface of the driving plate, and a sliding block slidably penetrates through the inner wall of the rectangular hole. The pipe fitting butt joint device solves the problem that when two pipe fittings are in butt joint and attached together, the pipe fittings still depend on manual pipe fitting pushing operation.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic welding, in particular to an automatic welding positioning fixture. Background Technique

[0002] Automatic welding refers to the process of using automatic equipment and technology to perform the welding process. Compared with traditional manual welding, automatic welding can improve the welding efficiency, precision and consistency, and is widely used in industrial production, especially in large-scale production and high-demand welding tasks.

[0003] The above and existing technologies have the following defects: when automatically welding pipe fittings, since the existing positioning fixture still relies on manual pushing of pipe fittings when docking and fitting two pipe fittings together, it lacks automatic functions and cannot be effectively integrated with modern welding robots or automatic production lines.

[0004] Therefore, an automatic welding positioning fixture is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to solve the defect that manual pushing of pipe fittings is still relied on when docking and fitting two pipe fittings together, and to propose an automatic welding positioning fixture.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: an automatic welding positioning fixture, including a base and two pipe fittings, a limiting structure is arranged on the surface of the base, the limiting structure includes a servo motor, the servo motor is fixedly connected to the surface of the base, the output end of the servo motor is fixedly connected with a gear, the tooth surface of the gear meshes with two sawtooth plates, one end of each of the two sawtooth plates away from each other is fixedly connected with a driving rod, the driving rods all slide through the base, and one end of the driving rod away from the sawtooth plate is fixedly connected with a driving plate. Two arc-shaped plates are fixedly connected to the surface of the base, and the pipe fittings are located inside the arc-shaped plates.

[0007] The effects achieved by the above components are as follows: by setting the limiting structure, it is convenient to push the two pipe fittings together when welding the pipe fittings, thus avoiding the need to manually push the pipe fittings, thereby improving the automation and reducing the working intensity of the staff.

[0008] Preferably, a rectangular hole is opened on the surface of the driving plate, a slider slides through the inner wall of the rectangular hole, one end of the slider close to the arc-shaped plate is fixedly connected with a conical block, the other end of the slider away from the conical block is fixedly connected with a frame, a bolt slides through the surface of the frame, a limiting plate is fixedly connected to the surface of the driving plate, a limiting hole is opened on the surface of the limiting plate, and the size of the bolt is adapted to the size of the limiting hole.

[0009] The effects achieved by the above components are as follows: When the driving rod moves, it drives the driving plate to move. When the driving plate moves, it drives the conical block to move. When the conical block moves to a suitable position, the conical block will insert into the pipe fitting, which further improves the limiting effect on the pipe fitting and prevents one end from tilting up when the two pipe fittings are in contact with each other.

[0010] Preferably, a spring is sleeved on the arc surface of the bolt, and both ends of the spring are fixedly connected to the bolt and the frame respectively.

[0011] The effects achieved by the above components are as follows: The bolt will insert into the limiting hole starting from the corresponding position on the surface of the limiting plate by means of the force of the spring contraction. The spring improves the stability of the bolt inserted into the limiting hole and prevents the bolt from slipping out of the limiting hole due to shaking.

[0012] Preferably, a plurality of balls are rotatably connected to the surface of the arc-shaped plate.

[0013] The effects achieved by the above components are as follows: When the pipe fitting moves, it will slide along the surface of the ball. The ball will rotate in the arc-shaped plate by means of the movement of the pipe fitting. The ball reduces the friction when the pipe fitting slides in the arc-shaped plate, thus facilitating the pushing of the position of the pipe fitting.

[0014] Preferably, two brackets are fixedly connected to the surface of the base, a U-shaped plate is fixedly connected to the surface of the brackets, and the serrated plate is slidably connected to the inner wall of the U-shaped plate.

[0015] The effects achieved by the above components are as follows: When the serrated plate moves, it will slide in the U-shaped plate. The U-shaped plate restricts the movement path of the serrated plate, thus preventing the serrated plate from shifting and disengaging from the gear during movement.

[0016] Preferably, two support arms are fixedly connected to the surface of the base, and a guide pipe is fixedly connected to one end of the two support arms close to each other.

[0017] The effects achieved by the above components are as follows: The impurities generated during welding will fall into the guide pipe and drop to both sides of the base from the outlets on both sides of the guide pipe, thus preventing the impurities from falling onto the surface of the gear and causing wear to the gear during operation.

[0018] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0019] 1. In the present utility model, by providing a limiting structure, two pipe fittings are respectively placed into two arc-shaped plates, and then the servo motor is driven. The rotating output end of the servo motor drives the gear to rotate. The rotation of the gear drives two sawtooth plates to move in opposite directions by means of teeth. When the sawtooth plates move, they drive the driving rods to move. The movement of the driving rods drives the driving plates to move. The movement of the driving plates squeezes the pipe fittings, thereby driving the two pipe fittings to move in the direction of approaching each other in the arc-shaped plates until the two pipe fittings are closely fitted together, avoiding the need to manually push the pipe fittings, thus improving automation and reducing the working intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 For the present utility model Figure 1 is a schematic diagram of a partial structure;

[0022] Figure 3 is a schematic diagram of the structure at the base of the present utility model;

[0023] Figure 4 is a schematic diagram of the structure at the driving plate of the present utility model;

[0024] Figure 5 is a schematic diagram of the structure at the tapered block of the present utility model.

[0025] Legend: 1. Base; 2. Pipe fitting; 3. Limiting structure; 301. Servo motor; 302. Gear; 303. Sawtooth plate; 304. Driving rod; 305. Driving plate; 306. Arc-shaped plate; 307. Rectangular hole; 308. Slide block; 309. Tapered block; 310. Frame; 311. Plug; 312. Limiting plate; 313. Limiting hole; 314. Spring; 315. Ball; 316. Bracket; 317. U-shaped plate; 318. Support arm; 319. Guide tube. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the present utility model will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0027] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0028] Such as Figure 1 - Figure 2As shown in the figure, the present utility model provides an automatic welding positioning fixture, which includes a base 1 and two pipe fittings 2. A limiting structure 3 is provided on the surface of the base 1. By setting the limiting structure 3, it is convenient to push the two pipe fittings 2 together during the welding of the pipe fittings 2, thus avoiding the need to manually push the pipe fittings 2, thereby improving the automation and reducing the working intensity of the staff.

[0029] The specific setting and function of its limiting structure 3 will be described in detail below.

[0030] As Figure 2 - Figure 5As shown in the figure, the limiting structure 3 includes a servo motor 301, which is fixedly connected to the surface of the base 1. The output end of the servo motor 301 is fixedly connected with a gear 302. The tooth surface of the gear 302 meshes with two serrated plates 303. One end of each of the two serrated plates 303 away from each other is fixedly connected with a driving rod 304. The driving rods 304 all slide through the base 1. One end of the driving rod 304 away from the serrated plate 303 is fixedly connected with a driving plate 305. Two arc-shaped plates 306 are fixedly connected to the surface of the base 1, and the pipe fitting 2 is located inside the arc-shaped plates 306. A rectangular hole 307 is formed on the surface of the driving plate 305. A slider 308 slides through the inner wall of the rectangular hole 307. One end of the slider 308 close to the arc-shaped plate 306 is fixedly connected with a conical block 309. One end of the slider 308 away from the conical block 309 is fixedly connected with a frame 310. A pin 311 slides through the surface of the frame 310. A limiting plate 312 is fixedly connected to the surface of the driving plate 305. A limiting hole 313 is formed on the surface of the limiting plate 312. The size of the pin 311 is adapted to the size of the limiting hole 313. The movement of the driving rod 304 will drive the movement of the driving plate 305, and the movement of the driving plate 305 will drive the movement of the conical block 309. When the conical block 309 moves to a suitable position, the conical block 309 will be inserted into the pipe fitting 2, and the conical block 309 can further improve the limiting effect on the pipe fitting 2 and avoid the situation that one end of the two pipe fittings 2 warps up when they are attached together. The arc surface of the pin 311 is sleeved with a spring 314. The two ends of the spring 314 are respectively fixedly connected with the pin 311 and the frame 310. The pin 311 will be inserted into the limiting hole 313 formed at the corresponding position on the surface of the limiting plate 312 by the force of the contraction of the spring 314. The spring 314 can improve the stability of the pin 311 inserted into the limiting hole 313 and avoid the pin 311 falling out of the limiting hole 313 due to shaking. A number of balls 315 are rotatably connected to the surface of the arc-shaped plate 306. When the pipe fitting 2 moves, it will slide along the surface of the balls 315. The balls 315 will rotate in the arc-shaped plate 306 by virtue of the movement of the pipe fitting 2. The balls 315 can reduce the friction when the pipe fitting 2 slides in the arc-shaped plate 306, so as to facilitate the pushing of the position of the pipe fitting 2. Two brackets 316 are fixedly connected to the surface of the base 1. A U-shaped plate 317 is fixedly connected to the surface of the bracket 316. The serrated plate 303 is slidably connected to the inner wall of the U-shaped plate 317. The movement of the serrated plate 303 will slide in the U-shaped plate 317. The U-shaped plate 317 can limit the movement path of the serrated plate 303, so as to avoid the serrated plate 303 shifting during movement and disengaging from the gear 302. Two support arms 318 are fixedly connected to the surface of the base 1. One end of the two support arms 318 close to each other is fixedly connected with a guide pipe 319. The impurities generated during welding will fall into the guide pipe 319 and drop to both sides of the base 1 from the outlets on both sides of the guide pipe 319, so as to avoid the impurities falling onto the surface of the gear 302 and causing wear of the gear 302 during operation.

[0031] The overall working principle is as follows. When two pipe fittings 2 need to be welded together, first place the two pipe fittings 2 into two arc-shaped plates 306 respectively. The arc-shaped plates 306 will fit onto the surfaces of the balls 315 on the arc-shaped plates 306. Then, pull the bolt 311. The movement of the bolt 311 will slide within the frame 310 and gradually disengage from the limit hole 313. When the bolt 311 moves, it will stretch the spring 314. When the bolt 311 disengages from the limit hole 313, the spring 314 is in a stretched state at this time. Then, move the slider 308. The slider 308 will slide within the rectangular hole 307. When the slider 308 moves, it will drive the tapered block 309 to move. When the tapered block 309 moves to a suitable position, release the bolt 311. The bolt 311 will insert into the limit hole 313 starting from the corresponding position on the surface of the limit plate 312 by virtue of the contracting force of the spring 314. The bolt 311 reaches the position to limit the slider 308, and thus limits the position of the tapered block 309. Then, drive the servo motor 301. The rotating output end of the servo motor 301 will drive the gear 302 to rotate. The rotation of the gear 302 will drive the two sawtooth plates 303 to move in opposite directions by means of the teeth. The movement of the sawtooth plates 303 will slide within the U-shaped plate 317. The U-shaped plate 317 serves to limit the movement path of the sawtooth plates 303, thus preventing the sawtooth plates 303 from shifting during movement and disengaging from the gear 302. When the sawtooth plates 303 move, they will drive the drive rod 304 to move. The movement of the drive rod 304 will drive the drive plate 305 to move. The movement of the drive plate 305 will drive the tapered block 309 to move. When the tapered block 309 moves to a suitable position, the tapered block 309 will insert into the pipe fitting 2. At this time, when the drive plate 305 continues to move, it will drive the tapered block 309 to move. The movement of the tapered block 309 will push the pipe fitting 2 to slide within the arc-shaped plate 306. When the pipe fitting 2 moves, it will slide along the surface of the ball 315. The ball 315 will rotate within the arc-shaped plate 306 by virtue of the movement of the pipe fitting 2. The ball 315 serves to reduce the frictional force when the pipe fitting 2 slides within the arc-shaped plate 306, thus facilitating the pushing of the position of the pipe fitting 2. When the pipe fitting 2 moves to a suitable position, the two pipe fittings 2 will closely fit together. At this time, it is thus convenient to weld the pipe fittings 2. The impurities generated during welding will fall into the guide pipe 319 and drop to both sides of the base 1 from the outlets on both sides of the guide pipe 319, thus preventing the impurities from falling onto the surface of the gear 302 and causing wear to the gear 302 during operation.

[0032] The above are only the preferred embodiments of the present utility model and do not constitute other forms of limitation to the present utility model. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution content of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An automated welding positioning fixture, comprising a base (1) and two pipe fittings (2), wherein a limiting structure (3) is provided on the surface of the base (1), and it is characterized in that: The limiting structure (3) includes a servo motor (301), the servo motor (301) is fixedly connected to the surface of the base (1), the output end of the servo motor (301) is fixedly connected with a gear (302), the tooth surface of the gear (302) meshes with two sawtooth plates (303), one end of each of the two sawtooth plates (303) away from each other is fixedly connected with a driving rod (304), the driving rods (304) all slide through the base (1), one end of the driving rod (304) away from the sawtooth plate (303) is fixedly connected with a driving plate (305), the surface of the base (1) is fixedly connected with two arc-shaped plates (306), and the pipe fitting (2) is located inside the arc-shaped plates (306).

2. The automatic welding positioning fixture according to claim 1, characterized in that: A rectangular hole (307) is formed in the surface of the driving plate (305), a slider (308) slides through the inner wall of the rectangular hole (307), one end of the slider (308) close to the arc-shaped plate (306) is fixedly connected with a conical block (309), one end of the slider (308) away from the conical block (309) is fixedly connected with a frame (310), a bolt (311) slides through the surface of the frame (310), a limiting plate (312) is fixedly connected to the surface of the driving plate (305), a limiting hole (313) is formed in the surface of the limiting plate (312), and the size of the bolt (311) is adapted to the size of the limiting hole (313).

3. The automated welding positioning fixture according to claim 2, wherein: A spring (314) is sleeved on the arc surface of the bolt (311), and two ends of the spring (314) are respectively fixedly connected with the bolt (311) and the frame (310).

4. An automatic welding positioning jig according to claim 1, characterized in that: A number of balls (315) are rotatably connected to the surface of the arc-shaped plate (306).

5. The automatic welding positioning fixture according to claim 1, characterized in that: The surface of the base (1) is fixedly connected with two brackets (316), the surface of the brackets (316) is fixedly connected with a U-shaped plate (317), and the sawtooth plate (303) is slidably connected to the inner wall of the U-shaped plate (317).

6. The automated welding positioning fixture according to claim 1, characterized in that: The surface of the base (1) is fixedly connected with two support arms (318), and one end of the two support arms (318) close to each other is fixedly connected with a guide tube (319).

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