Positioning clamp for upper frame welding

Abstract

The utility model relates to the technical field of automobile welding, in particular to a positioning fixture for welding an upper frame, which comprises a mounting plate, a positioning component arranged at the top of the mounting plate, and a protective component arranged at the bottom of the mounting plate. Through cooperative use of the machining table, the driving motor, the two-way lead screw, the rectangular block, the rotating motor, the fixing clamp, the telescopic air cylinder and the limiting plate, rapid fixing and overturning of an automobile workpiece are achieved, so that the welding flexibility and the working efficiency are greatly improved, and the driving motor can drive the two-way lead screw to rotate; the two-way lead screw can drive the two rectangular blocks to move oppositely or oppositely while rotating, then the distance between the two fixing clamps is adjusted so as to adapt to automobile workpieces of different sizes, the automobile workpieces can rotate at any angle in the horizontal plane through the rotating motor, the requirement for different angles in the welding process is met, and the welding efficiency is improved. And the automobile workpiece is clamped or loosened, so that the positioning accuracy and stability are further improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive welding technology, specifically a positioning fixture for welding upper frames. Background Technology

[0002] Automotive upper frame welding is a technology that connects the upper frame of a car to other components through high-temperature fusion. Automotive upper frame welding is an important part of the automobile manufacturing process. It involves connecting the upper frame of the car to other components, such as doors and roofs, through high-temperature fusion. During the welding process, positioning fixtures are required to position the components.

[0003] Existing technologies, such as CN219598508U, describe a welding fixture for automotive workpieces. This fixture utilizes a welding jig assembly to change the workpiece clamping position vertically, thereby improving the convenience of welding automotive workpieces. The chuck allows the automotive workpiece to be stably clamped within the welding jig assembly.

[0004] However, this welding fixture still has some shortcomings in its use:

[0005] 1. During the welding process, the automotive workpiece needs to be rotated at an angle. The existing tooling is not convenient to operate after fixing the workpiece, which limits the welding process and reduces work efficiency.

[0006] 2. A large amount of welding fumes are generated during the tooling welding process. Welding fumes not only threaten the health of operators, but may also have an adverse effect on the welding quality. Therefore, it is crucial to effectively control and remove welding fumes during tooling welding. Utility Model Content

[0007] The purpose of this utility model is to provide a positioning fixture for upper frame welding, in order to solve the problem mentioned in the background art that, during the welding process, the automotive workpiece needs to be rotated at an angle. Existing fixtures are inconvenient to operate after fixing the workpiece, which limits the welding process and reduces work efficiency. The welding process of the fixture generates a large amount of welding fumes, which not only threatens the health of the operators, but may also have an adverse effect on the welding quality. Therefore, it is crucial to effectively control and remove welding fumes during the fixture welding process.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A positioning fixture for welding an upper frame includes a mounting plate, wherein a positioning component is provided on the top of the mounting plate and a protective component is provided on the bottom of the mounting plate;

[0010] The positioning assembly includes a processing table fixedly connected to the top of the mounting plate. The top of the processing table has a guide groove and a support rod. A rectangular block is fixedly connected to the top of the support rod. A rotary motor is mounted on the side of the rectangular block. A fixing clamp is fixedly connected to the output end of the rotary motor. A telescopic cylinder is mounted on the top of the fixing clamp. The telescopic part of the telescopic cylinder passes through the fixing clamp and is slidably connected to the fixing clamp. A limit plate is fixedly connected to the end of the telescopic part of the telescopic cylinder.

[0011] As a preferred embodiment of this utility model, the protective component includes a collection box at the bottom of the mounting plate, a welding fume extractor installed on the side of the collection box, a guide tube fixedly connected to the suction end of the welding fume extractor, the discharge end of the welding fume extractor extending into the collection box, and a suction head fixedly connected to the top of the guide tube.

[0012] As a preferred embodiment of this utility model, a drive motor is installed on the side of the processing table, and a bidirectional lead screw is fixedly connected to the output end of the drive motor. The bidirectional lead screw passes through the processing table and extends into the guide groove. The bidirectional lead screw is rotatably connected to the processing table, and a moving block is threadedly connected to the outer surface of the bidirectional lead screw. The bottom of the support rod is fixedly connected to the moving block.

[0013] As a preferred embodiment of this utility model, the suction head and the guide tube are connected, a purification plate is fixedly connected inside the collection box, and a sealing cover is snapped onto the top of the collection box.

[0014] As a preferred embodiment of this utility model, a fixing plate is fixedly connected to the bottom of the mounting plate, and the fixing plate and the mounting plate abut against the collection box.

[0015] As a preferred embodiment of this utility model, an exhaust pipe is fixedly connected to the side of the collection box, and the exhaust pipe is the same as the collection box.

[0016] As a preferred embodiment of this utility model, the guide tube is made of a universal tube, and the suction head is located on the side and above the processing table.

[0017] As a preferred embodiment of this utility model, the bottom of the mounting plate is fixedly connected to two support legs, and the two support legs are positioned opposite each other.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. In this utility model, by using a processing table, a drive motor, a bidirectional lead screw, rectangular blocks, a rotary motor, a fixing clamp, a telescopic cylinder, and a limiting plate in combination, the rapid fixing and flipping of automotive workpieces is achieved, thereby greatly improving the flexibility and efficiency of welding. The drive motor can drive the bidirectional lead screw to rotate, and while the bidirectional lead screw rotates, it can drive the two rectangular blocks to move relative to each other or away from each other, thereby adjusting the distance between the two fixing clamps to accommodate automotive workpieces of different sizes. The rotary motor can realize the rotation of the automotive workpiece at any angle in the horizontal plane to meet the needs of different angles during the welding process. The telescopic end of the telescopic cylinder can drive the limiting plate to move up and down, thereby clamping or releasing the automotive workpiece, further improving the accuracy and stability of positioning.

[0020] 2. This utility model, through the coordinated use of a collection box, a welding fume extractor, a guide pipe, a suction head, and a purification plate, achieves efficient collection and purification of welding fumes generated during the welding process. This improves the working environment and protects the health of operators. The collection box temporarily stores the welding fumes. The welding fume extractor uses powerful suction to draw the fumes through the guide pipe into the suction head, where they are then collected in the collection box. The purification plate filters and purifies the inhaled welding fumes, effectively removing harmful substances and ensuring that the emitted air meets environmental standards. This design not only improves the environmental friendliness of welding operations but also enhances safety. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the positioning component structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the bottom structure of the mounting plate of this utility model;

[0024] Figure 4 This is a schematic diagram of the protective component structure of this utility model.

[0025] In the diagram: 1. Mounting plate; 2. Positioning assembly; 201. Processing table; 202. Guide groove; 203. Drive motor; 204. Two-way lead screw; 205. Moving block; 206. Support rod; 207. Rectangular block; 208. Rotary motor; 209. Fixing clamp; 210. Telescopic cylinder; 211. Limiting plate; 3. Protective assembly; 301. Collection box; 302. Welding fume extractor; 303. Purification plate; 304. Sealing cover; 305. Guide tube; 306. Suction head; 307. Exhaust pipe; 4. Support leg; 5. Fixing plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] For examples, please refer to Figures 1-4 This utility model provides a technical solution:

[0028] A positioning fixture for welding an upper frame includes a mounting plate 1, a positioning component 2 on the top of the mounting plate 1, and a protective component 3 on the bottom of the mounting plate 1. The positioning component 2 includes a processing table 201 fixedly connected to the top of the mounting plate 1. The top of the processing table 1 has a guide groove 202. A support rod 206 is provided on the top of the processing table 201. A rectangular block 207 is fixedly connected to the top of the support rod 206. A rotary motor 208 is mounted on the side of the rectangular block 207. A fixing clamp 209 is fixedly connected to the output end of the rotary motor 208. A telescopic cylinder is mounted on the top of the fixing clamp 209. 210, the telescopic part of the telescopic cylinder 210 passes through the fixed clamp 209 and is slidably connected to the fixed clamp 209. The end of the telescopic part of the telescopic cylinder 210 is fixedly connected to the limit plate 211. A drive motor 203 is installed on the side of the processing table 201. A bidirectional lead screw 204 is fixedly connected to the output end of the drive motor 203. The bidirectional lead screw 204 passes through the processing table 201 and extends into the guide groove 202. The bidirectional lead screw 204 is rotatably connected to the processing table 201. A moving block 205 is threadedly connected to the outer surface of the bidirectional lead screw 204. The bottom of the support rod 206 is fixedly connected to the moving block 205.

[0029] The distance between the two fixing clamps 209 is adjusted to accommodate upper frames of different sizes. After the fixing clamps 209 clamp the upper frame, the rotary motor 208 is started. The rotary motor 208 drives the fixing clamps 209 to rotate the upper frame to the predetermined welding angle.

[0030] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the protective component 3 includes a collection box 301 at the bottom of the mounting plate 1, a welding fume extractor 302 mounted on the side of the collection box 301, a guide tube 305 fixedly connected to the suction end of the welding fume extractor 302, and the discharge end of the welding fume extractor 302 extending into the collection box 301. A suction head 306 is fixedly connected to the top of the guide tube 305, and the suction head 306 communicates with the guide tube 305. A purification plate 303 is fixedly connected inside the collection box 301, and a sealing cover 304 is snapped onto the top of the collection box 301. A fixing plate 5 is fixedly connected to the bottom of the mounting plate 1, and the fixing plate 5 and the mounting plate 1 abut against the collection box 301. An exhaust pipe 307 is fixedly connected to the side of the collection box 301, and the exhaust pipe 307 is the same as the collection box 301. The guide tube 305 is made of a universal tube. The suction head 306 is located on the upper side of the processing table 201. Two support legs 4 are fixedly connected to the bottom of the mounting plate 1, and the two support legs 4 are positioned opposite each other.

[0031] The welding fumes generated during the welding process are drawn into the collection box 301 by the suction head 306, and after being purified by the purification plate 303, the harmless gases are discharged through the exhaust pipe 307.

[0032] The working process of this utility model is as follows: When using the positioning fixture designed in this solution for welding the upper frame, first check whether the positioning fixture is working properly and ensure that all components are intact. Then, place the upper frame to be welded on the processing table 201, start the drive motor 203, and drive the bidirectional lead screw 204 to rotate. The bidirectional lead screw 204 drives the moving block 205 to move along its axis. The moving block 205 is connected to the rectangular block 207 through the support rod 206. The rectangular block 207 moves accordingly, thereby adjusting the distance between the two fixed clamps 209 to accommodate upper frames of different sizes. When the fixed clamp 209... After clamping the upper frame, start the rotary motor 208. The rotary motor 208 drives the fixing clamp 209 to rotate the upper frame to the predetermined welding angle. The telescopic cylinder 210 works to push the limit plate 211 against the upper frame, further fixing the position of the upper frame and preventing shaking during welding. Turn on the welding fume extractor 302 and suck the welding fumes generated during welding into the collection box 301 through the suction head 306. After being purified by the purification plate 303, the harmless gas is discharged through the exhaust pipe 307, realizing environmentally friendly welding. The entire process is efficient and stable, greatly improving welding quality and production efficiency.

[0033] 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 upper frame welding, comprising a mounting plate, characterized in that: The top of the mounting plate is provided with a positioning component (2), and the bottom of the mounting plate is provided with a protective component (3). The positioning component (2) includes a processing table (201) fixedly connected to the top of the mounting plate. The top of the processing table is provided with a guide groove (202). A support rod (206) is provided on the top of the processing table (201). A rectangular block (207) is fixedly connected to the top of the support rod (206). A rotary motor (208) is installed on the side of the rectangular block (207). A fixing clamp (209) is fixedly connected to the output end of the rotary motor (208). A telescopic cylinder (210) is installed on the top of the fixing clamp (209). The telescopic part of the telescopic cylinder (210) passes through the fixing clamp (209) and is slidably connected to the fixing clamp (209). A limit plate (211) is fixedly connected to the end of the telescopic part of the telescopic cylinder (210).

2. The positioning fixture for welding of the upper frame according to claim 1, characterized in that, The protective component (3) includes a collection box (301) at the bottom of the mounting plate, a welding fume extractor (302) is mounted on the side of the collection box (301), a guide tube (305) is fixedly connected to the suction end of the welding fume extractor (302), the discharge end of the welding fume extractor (302) extends into the collection box (301), and a suction head (306) is fixedly connected to the top of the guide tube (305).

3. The positioning fixture for welding of the upper frame according to claim 1, characterized in that, A drive motor (203) is installed on the side of the processing table (201). A bidirectional lead screw (204) is fixedly connected to the output end of the drive motor (203). The bidirectional lead screw (204) passes through the processing table (201) and extends into the guide groove (202). The bidirectional lead screw (204) is rotatably connected to the processing table (201). A moving block (205) is threadedly connected to the outer surface of the bidirectional lead screw (204). The bottom of the support rod (206) is fixedly connected to the moving block (205).

4. A positioning fixture for welding an upper frame according to claim 2, characterized in that, The suction head (306) and the guide tube (305) are connected. A purification plate (303) is fixedly connected inside the collection box (301). A sealing cover (304) is snapped onto the top of the collection box (301).

5. A positioning fixture for welding an upper frame according to claim 2, characterized in that, A fixing plate (5) is fixedly connected to the bottom of the mounting plate, and the fixing plate (5) and the mounting plate abut against the collection box (301).

6. A positioning fixture for welding an upper frame according to claim 2, characterized in that, An exhaust pipe (307) is fixedly connected to the side of the collection box (301), and the exhaust pipe (307) is the same as the collection box (301).

7. A positioning fixture for welding an upper frame according to claim 2, characterized in that, The guide tube (305) is made of a universal tube, and the suction head (306) is located on the side above the processing table (201).

8. A positioning fixture for welding an upper frame according to claim 1, characterized in that, The bottom of the mounting plate is fixedly connected to two support legs (4), and the two support legs (4) are positioned opposite each other.

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