Positioning fixture for welding automobile exhaust pipe

Abstract

The utility model discloses a kind of positioning fixture for automobile exhaust pipe welding, including bottom plate, the top of bottom plate is fixedly connected with support frame, the outside of bottom plate is fixedly connected with connecting frame, the inside of support frame is slidably connected with two corresponding distribution limit rods, the end of two limit rods away from bottom plate is fixedly connected with arc-shaped supporting block, through adjusting mechanism, exhaust pipe can be accurately positioned, adjustment horizontal state is placed in welding position, in welding process, effectively avoid welding deviation, so that welding quality effectively improves, to reach high standard quality requirement, through fixing mechanism, can make exhaust pipe avoid the generation of shaking or displacement in welding process, avoid welding deviation, this stable welding state makes welding quality better, simultaneously without operator in welding lifting, to reduce operator labor intensity, make its work efficiency improve.

Description

Technical Field

[0001] This utility model belongs to the field of fixture technology, specifically relating to a positioning fixture for welding automobile exhaust pipes. Background Technology

[0002] With the rapid development of the automotive industry, the production efficiency and quality requirements of automobiles are constantly increasing. As a crucial component of automobiles, the welding quality of the exhaust pipe directly affects the vehicle's performance and safety. Welding is a key step in the production process of automotive exhaust pipes, and accurate positioning and fixing of the exhaust pipe during welding are essential prerequisites for ensuring welding quality.

[0003] However, in traditional automotive exhaust pipe welding operations, the fixing and positioning of the exhaust pipe mainly relies on manual operation. Workers need to manually place the exhaust pipe precisely in the welding position, but this method has many drawbacks. The accuracy of manual positioning is difficult to guarantee, and the exhaust pipe is prone to shaking or displacement during the welding process, resulting in welding deviations. This unstable welding state makes the welding quality inconsistent and difficult to meet high quality standards. In addition, long-term repetitive manual operation not only greatly increases the labor intensity of workers, but also easily causes operator fatigue. In a state of fatigue, the operator's accuracy and efficiency will further decline, which will seriously affect the welding quality and production efficiency. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a positioning fixture for welding automobile exhaust pipes, which has the advantages of precise positioning and easy fixation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for welding automotive exhaust pipes, comprising a base plate, a support frame fixedly connected to the top of the base plate, a connecting frame fixedly connected to the outside of the base plate, two correspondingly distributed limiting rods slidably connected inside the support frame, an arc-shaped support block fixedly connected to the end of each of the two limiting rods away from the base plate, an exhaust pipe body disposed between the two arc-shaped support blocks, an adjustment mechanism disposed at the top of the base plate, and a fixing mechanism disposed at the top of the connecting frame.

[0006] Preferably, the adjustment mechanism includes two rotating cylinders, both of which are rotatably connected to the top of the base plate. Each of the two rotating cylinders is threaded with a screw, which passes through the support frame and is slidably connected to the support frame. The top of each screw is fixedly connected to a corresponding arc-shaped support block.

[0007] Preferably, a telescopic rod is rotatably connected to the side of each of the two arc-shaped blocks that are close to each other, and a level is rotatably connected between the two telescopic rods.

[0008] Preferably, the fixing mechanism includes a fixing plate, which is fixedly connected to the top of the connecting frame, and the connecting frame is internally threaded with a lead screw.

[0009] Preferably, an arc-shaped plate is rotatably connected to the bottom of the lead screw, and a rubber sheet is fixedly connected to the inner wall of the arc-shaped plate.

[0010] Preferably, a turntable is provided at the top of the lead screw, and the turntable is fixedly connected to the lead screw.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. When the exhaust pipe body needs to be adjusted to a horizontal position for welding, first rotate the drum. Because the screw and the drum are threadedly connected, and the arc-shaped support block is fixedly connected to the screw, the rotation of the drum can drive the screw to rise. The rise of the screw will drive the arc-shaped support block to rise. The limit rod increases the stability of the arc-shaped support block during the rise. Through the cooperation of the telescopic rod and the level, the arc-shaped support block can be adjusted to a horizontal state, effectively avoiding deviations in the exhaust pipe body during welding. At the same time, the two ends of the telescopic rod are rotatably connected to the arc-shaped support block and the level, respectively, so the arc-shaped support block will not get stuck when adjusting the height. This effectively avoids welding deviations caused by uneven ground. Through the above mechanism, the exhaust pipe can be accurately positioned and adjusted to a horizontal state, thus placing it in the welding position. During the welding process, welding deviations can be effectively avoided, thereby effectively improving the welding quality and achieving high-standard quality requirements.

[0013] 2. When it is necessary to fix the exhaust pipe body, first rotate the turntable. The rotation of the turntable will drive the lead screw to rotate. Because the lead screw and the fixing plate are threaded, the lead screw will move downwards when rotating, thereby driving the arc plate downwards. When the arc plate moves to the designated position, the rubber sheet will contact the exhaust pipe body. Then, rotate the lead screw again to press down, thereby increasing the force between the rubber sheet and the exhaust pipe body, thus achieving the fixing effect. Because the lead screw and the arc plate are rotatably connected, there will be no jamming when fixing the exhaust pipe body. Through the above mechanism, the exhaust pipe can be prevented from shaking or shifting during the welding process, avoiding welding deviation. This stable welding state makes the welding quality better, and at the same time, it eliminates the need for operators to lift the pipe during welding, thereby reducing the labor intensity of operators and improving their work efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall side view structure of this utility model;

[0016] Figure 3 This is a top view of the overall structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the adjustment mechanism of this utility model.

[0018] In the diagram: 1. Base plate; 2. Adjustment mechanism; 201. Rotary drum; 202. Screw; 203. Telescopic rod; 204. Level; 3. Fixing mechanism; 301. Fixing plate; 302. Lead screw; 303. Turntable; 304. Arc plate; 305. Rubber sheet; 4. Support frame; 5. Connecting frame; 6. Limiting rod; 7. Arc-shaped support block; 8. Exhaust pipe body. Detailed Implementation

[0019] 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.

[0020] Example 1:

[0021] Please see Figure 1-4 This utility model provides a technical solution: a positioning fixture for welding automotive exhaust pipes, including a base plate 1, a support frame 4 fixedly connected to the top of the base plate 1, a connecting frame 5 fixedly connected to the outside of the base plate 1, two correspondingly distributed limiting rods 6 slidably connected inside the support frame 4, an arc-shaped support block 7 fixedly connected to the end of each of the two limiting rods 6 away from the base plate 1, an exhaust pipe body 8 disposed between the two arc-shaped support blocks 7, an adjustment mechanism 2 disposed on the top of the base plate 1, and a fixing mechanism 3 disposed on the top of the connecting frame 5.

[0022] In this implementation scheme, the base plate 1 supports the support frame 4 and the connecting frame 5. The arc-shaped support block 7 supports the exhaust pipe body 8. The limiting rod 6 limits the arc-shaped support block 7 to prevent it from rotating. The adjusting mechanism 2 can accurately position the exhaust pipe and adjust its horizontal state for welding. During the welding process, welding deviation is effectively avoided, thus improving the welding quality and achieving high-standard quality requirements. The fixing mechanism 3 prevents the exhaust pipe from shaking or shifting during welding, avoiding welding deviation. This stable welding state results in better welding quality and eliminates the need for operators to lift the pipe during welding, thereby reducing the labor intensity of operators and improving their work efficiency.

[0023] Example 2:

[0024] Please see Figure 1-4 Based on Embodiment 1, this utility model provides a technical solution: the adjustment mechanism 2 includes two rotating cylinders 201, both rotating cylinders 201 are rotatably connected to the top of the base plate 1, both rotating cylinders 201 are threadedly connected to screw rods 202, both screw rods 202 pass through the support frame 4 and are slidably connected to the support frame 4, the top of the two screw rods 202 are respectively fixedly connected to the corresponding arc-shaped support blocks 7, both arc-shaped support blocks 7 are rotatably connected to the side of the two arc-shaped support blocks 7 that are close to each other, and a level 204 is rotatably connected between the two telescopic rods 203.

[0025] In this embodiment, when the exhaust pipe body 8 needs to be adjusted to a horizontal position for welding, the rotating drum 201 is first rotated. Since the screw 202 and the rotating drum 201 are threadedly connected, and the arc-shaped support block 7 is fixedly connected to the screw 202, the rotating drum 201 can drive the screw 202 to rise when it rotates. The rise of the screw 202 then drives the arc-shaped support block 7 to rise. The limiting rod 6 increases the stability of the arc-shaped support block 7 during its ascent. Through the cooperation of the telescopic rod 203 and the level 204, the arc-shaped support block 7 can be adjusted to a horizontal state, allowing the exhaust pipe body 8 to be welded horizontally. The exhaust pipe body 8 effectively avoids deviation during welding. At the same time, the two ends of the telescopic rod 203 are rotatably connected to the arc-shaped support block 7 and the level 204, respectively. Therefore, the arc-shaped support block 7 will not get stuck when adjusting the height. This effectively avoids welding deviation caused by uneven ground during welding. Through the above mechanism, the exhaust pipe can be accurately positioned and the exhaust pipe body 8 can be accurately adjusted to a horizontal state, thus placing it in the welding position. During the welding process, welding deviation can be effectively avoided, thereby effectively improving the welding quality and achieving high-standard quality requirements.

[0026] Example 3:

[0027] Please see Figure 1-3 Based on Embodiment 1 and Embodiment 2, this utility model provides a technical solution: the fixing mechanism 3 includes a fixing plate 301, the fixing plate 301 is fixedly connected to the top of the connecting frame 5, the connecting frame 5 is internally threaded with a lead screw 302, the bottom of the lead screw 302 is rotatably connected with an arc plate 304, the inner wall of the arc plate 304 is fixedly connected with a rubber sheet 305, the top of the lead screw 302 is provided with a turntable 303, and the turntable 303 is fixedly connected to the lead screw 302.

[0028] In this embodiment, when it is necessary to fix the exhaust pipe body 8, the turntable 303 is rotated first. The rotation of the turntable 303 drives the lead screw 302 to rotate. Since the lead screw 302 and the fixing plate 301 are threadedly connected, the lead screw 302 will move downward when it rotates, thereby driving the arc plate 304 to move downward. When the arc plate 304 moves to the designated position, the rubber sheet 305 will contact the exhaust pipe body 8. Then the lead screw 302 is rotated again to press down, thereby increasing the force between the rubber sheet 305 and the exhaust pipe body 8, thereby achieving the fixing effect. Since the lead screw 302 and the arc plate 304 are rotatably connected, there will be no jamming when fixing the exhaust pipe body 8.

[0029] The working principle and usage process of this utility model are as follows: When it is necessary to adjust the exhaust pipe body 8 to a horizontal position for welding, firstly rotate the rotating drum 201. Since the screw 202 and the rotating drum 201 are threadedly connected, and since the arc-shaped support block 7 is fixedly connected to the screw 202, when the rotating drum 201 rotates, it can drive the screw 202 to rise. The rise of the screw 202 will drive the arc-shaped support block 7 to rise. The limit rod 6 increases the stability of the arc-shaped support block 7 when it rises. Through the cooperation of the telescopic rod 203 and the level 204, the arc-shaped support block 7 can be adjusted to a horizontal state, so that the exhaust pipe body 8 can be effectively prevented from deviating during welding. At the same time, the two ends of the telescopic rod 203 are rotatably connected to the arc-shaped support block 7 and the level 204 respectively, so the arc-shaped support block 7 will not get stuck when adjusting the height, which can effectively avoid welding deviation caused by uneven ground during welding.

[0030] When it is necessary to fix the exhaust pipe body 8, first rotate the turntable 303. The rotation of the turntable 303 drives the lead screw 302 to rotate. Since the lead screw 302 and the fixing plate 301 are threadedly connected, the lead screw 302 will move downward when rotating, thereby driving the arc plate 304 to move downward. When the arc plate 304 moves to the designated position, the rubber sheet 305 will contact the exhaust pipe body 8. Then, rotate the lead screw 302 again to press down, thereby increasing the force between the rubber sheet 305 and the exhaust pipe body 8, thus achieving the fixing effect. Since the lead screw 302 and the arc plate 304 are rotatably connected, there will be no jamming when fixing the exhaust pipe body 8. Through the above mechanism, the exhaust pipe can avoid shaking or displacement during the welding process, avoiding welding deviation. This stable welding state makes the welding quality better, and at the same time, it eliminates the need for operators to lift the pipe during welding, thereby reducing the labor intensity of operators and improving their work efficiency.

[0031] 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 positioning fixture for welding automotive exhaust pipes, comprising a base plate (1), characterized in that: A support frame (4) is fixedly connected to the top of the base plate (1), and a connecting frame (5) is fixedly connected to the outside of the base plate (1). Two correspondingly distributed limiting rods (6) are slidably connected inside the support frame (4). An arc-shaped support block (7) is fixedly connected to the end of each of the two limiting rods (6) away from the base plate (1). An exhaust pipe body (8) is provided between the two arc-shaped support blocks (7). An adjustment mechanism (2) is provided on the top of the base plate (1), and a fixing mechanism (3) is provided on the top of the connecting frame (5).

2. The positioning fixture for welding automotive exhaust pipes according to claim 1, characterized in that: The adjustment mechanism (2) includes two rotating cylinders (201), both of which are rotatably connected to the top of the base plate (1). Both rotating cylinders (201) are threaded with screws (202) inside. Both screws (202) pass through the support frame (4) and are slidably connected to the support frame (4). The tops of the two screws (202) are respectively fixedly connected to the corresponding arc-shaped support blocks (7).

3. The positioning fixture for welding automotive exhaust pipes according to claim 2, characterized in that: The two arc-shaped blocks (7) are rotatably connected to each other on one side, and a level (204) is rotatably connected between the two telescopic rods (203).

4. The positioning fixture for welding automotive exhaust pipes according to claim 1, characterized in that: The fixing mechanism (3) includes a fixing plate (301), which is fixedly connected to the top of the connecting frame (5), and the connecting frame (5) is internally threaded with a lead screw (302).

5. A positioning fixture for welding automotive exhaust pipes according to claim 4, characterized in that: The bottom of the lead screw (302) is rotatably connected to an arc plate (304), and a rubber sheet (305) is fixedly connected to the inner wall of the arc plate (304).

6. A positioning fixture for welding automotive exhaust pipes according to claim 4, characterized in that: A turntable (303) is provided on the top of the lead screw (302), and the turntable (303) is fixedly connected to the lead screw (302).

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