A welding frame for automobile welding production

Abstract

The utility model relates to a kind of welding frame for automobile welding production, comprising: connection mounting frame, its both ends inside are all provided with through-hole;Its both ends are all provided with jack symmetrically;Movable clamping mechanism, its movable clamping mechanism is clamped in the inside of the connection mounting frame;And end portion and the through-hole inside of the end portion inside of the connection mounting frame mutually adhere;Fixed positioning jack, it is symmetrically provided in the one end surface outside of the connection mounting frame, by the cooperation between the movable clamping mechanism and fixed positioning jack that is equipped, the component required welding can be stably clamped and fixed, welding treatment is carried out between components, and it can be quickly rotated, and component is turned over and is handled, and connection cooperation between fixed positioning jack can make movable clamping mechanism stably be in the inside of connection mounting frame, component is in stable state, simple structure, convenient and fast operation.

Description

Technical Field

[0001] This utility model relates to the field of welding frame technology, and in particular to a welding frame for automobile welding production. Background Technology

[0002] Welding is a technique that joins metals together by heating them at high temperatures. It is commonly used in automobile manufacturing. During the welding process, parts are often connected to form an integral structure to ensure the strength of the structure. Some items need to be welded on both sides, so manual flipping is often required during the welding process.

[0003] A search revealed a welding frame for automotive welding production disclosed in publication number CN218396772U, comprising a main body, a flipping mechanism, and a fixing mechanism. The flipping mechanism is located at the upper end of the main body, and the fixing mechanism is located above the main body and at the inner end of the flipping mechanism. The main body includes a base plate, a support column, an anti-slip pad, an electric push rod, and a push rod. The support column is fixedly installed at the lower end of the base plate, and the anti-slip pad is fixedly installed at the lower end of the support column. The electric push rod is fixedly installed at the left and right ends of the upper end of the base plate, and the push rod is movably installed at the upper end of the transmission end of the electric push rod. The flipping mechanism includes a support plate, a first fixing plate, a second fixing plate, a motor, a first turntable, a welding frame, a second turntable, a lifting button, and a flipping button. The support plate is fixedly installed at the upper end of the push rod.

[0004] During the use of the above-mentioned technical solution, the position of the clamping and fixing component cannot be stably fixed, which causes the clamping fastener to move inside the slide and limit groove after the automotive parts are clamped and fixed, making it impossible to stably weld the automotive parts. Therefore, we propose a welding frame for automotive welding production. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a welding frame for automotive welding production, which can solve the problems existing in the background art.

[0006] The technical solution of this utility model is:

[0007] A welding frame for automotive welding production, comprising:

[0008] The connecting mounting bracket has through holes at both ends; and symmetrical insertion holes are provided at both ends.

[0009] The movable clamping and flipping mechanism is movably engaged with the inner side of the connecting mounting bracket; and its end is in contact with the inner side of the through hole on the inner side of the end of the connecting mounting bracket.

[0010] Fixed positioning holes are symmetrically opened on the outer surface of one end of the connecting mounting bracket;

[0011] Fixed guide and limiting through grooves are symmetrically opened on both ends of the connecting mounting bracket;

[0012] A fixed guide limiting mechanism is movably inserted into the inner side of the insertion holes at both ends of the connecting mounting bracket;

[0013] The mounting base is fixedly disposed at the bottom end of the fixed guide limiting mechanism;

[0014] An electric telescopic rod is symmetrically fixed on the top of the mounting base, and its output end is fixedly connected to the bottom end of the connecting mounting frame.

[0015] In a further technical solution, the movable clamping and flipping mechanism includes a connecting end rod located inside the through hole of the connecting mounting frame, a connecting mounting frame fixedly connected between the ends of adjacent connecting end rods, a connecting limiting component fixedly connected to one end of one of the connecting end rods, a fixing through groove opened on both sides of the connecting mounting frame, a connecting bottom block symmetrically provided at the bottom end of the connecting mounting frame, and a connecting clamping component fixedly connected to both sides of the connecting mounting frame.

[0016] In a further technical solution, the connecting clamping assembly includes a connecting mounting sleeve. A bidirectional threaded rod is movably connected inside the connecting mounting sleeve. A servo motor is fixedly connected to one end of the bidirectional threaded rod. The servo motor and one end of the connecting mounting sleeve are fixedly connected to each other. A movable mounting plate is symmetrically sleeved on the outer surface of the bidirectional threaded rod. A first connecting seat is fixedly connected to one side of the movable mounting plate. A movable deflection arm is movably connected to the inner side of the first connecting seat via a connecting shaft. A second connecting seat is movably connected to the other end of the movable deflection arm via a connecting shaft. A movable clamping plate is fixedly connected to one side of the second connecting seat.

[0017] In a further technical solution, a threaded sleeve is fixedly connected to the middle of the side of the movable clamping plate near the second connecting seat. A movable threaded rod is movably connected to the inner side of the threaded sleeve. The movable threaded rod slides and fits against the inside of the threaded sleeve. A rotating end plate is fixedly connected to one end of the movable threaded rod, and a connecting end plate is fixedly connected to the other end of the movable threaded rod. A connecting sleeve block is movably sleeved on the outer surface of the connecting end plate. A connecting extrusion push plate is fixedly connected to one side of the connecting sleeve block. A fixed guide rod is symmetrically fixedly connected to the connecting extrusion push plate near the connecting sleeve block. One end of the fixed guide rod passes through the interior of the movable clamping plate and extends to the outside. A groove adapted to the connecting sleeve block and the connecting extrusion push plate is opened on one side of the movable clamping plate.

[0018] In a further technical solution, the connecting limiting assembly includes a connecting mounting arm. A connecting sleeve is fixedly connected to one end of the connecting mounting arm away from the connecting end rod. A movable insert rod is movably connected inside the connecting sleeve. A force-bearing sleeve is fixedly sleeved on the outer surface of the movable insert rod. The force-bearing sleeve is located inside the connecting sleeve. A force-bearing spring is fixedly connected between the side of the force-bearing sleeve away from the connecting mounting arm and one end of the connecting sleeve. A connecting pull ring is fixedly connected to the end of the movable insert rod away from the connecting mounting arm. The outer side of one end of the movable insert rod is in contact with the inner side of the fixed positioning hole.

[0019] In a further technical solution, a fixed limiting ring is symmetrically fixedly sleeved on the outer surface of the connecting sleeve, and a movable rotating sleeve is movably sleeved on the outer surface of the connecting sleeve, with the movable rotating sleeve positioned between adjacent fixed limiting rings.

[0020] In a further technical solution, the fixed guide limiting mechanism includes a connecting guide rod, a limiting bolt is provided on the upper inner side of the connecting guide rod, the connecting guide rod is located inside the inner insertion hole of the connecting mounting bracket, and the limiting bolt is located inside the fixed guide limiting through groove.

[0021] The beneficial effects of this utility model are:

[0022] 1. Through the cooperation between the movable clamping and flipping mechanism and the fixed positioning hole, the parts to be welded can be stably clamped and fixed, and welding can be performed between the parts. It can also be rotated quickly to flip the parts and connect with the fixed positioning hole. This allows the movable clamping and flipping mechanism to be stably located inside the connecting mounting frame, and the parts to be in a stable state. The structure is simple and the operation is convenient and quick.

[0023] 2. Through the cooperation of the fixed guide limit groove, the fixed guide limit mechanism and the electric telescopic rod, when adjusting the height of the connecting mounting frame and the movable clamping flipping mechanism, the movement of the connecting mounting frame can be guided by the cooperation of the fixed guide limit groove and the fixed guide limit mechanism. At the same time, the connecting mounting frame can be restricted to prevent it from detaching from the outer surface of the fixed guide limit mechanism, making the operation convenient and quick. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a welding frame for automobile welding production according to an embodiment of this utility model;

[0025] Figure 2 This is a schematic diagram of the movable clamping and flipping mechanism of a welding frame for automobile welding production according to an embodiment of this utility model;

[0026] Figure 3 This is a schematic diagram of a fixed through groove structure for a welding frame used in automobile welding production according to an embodiment of this utility model;

[0027] Figure 4 This is a schematic diagram of the connection and clamping assembly structure of a welding frame for automobile welding production according to an embodiment of this utility model;

[0028] Figure 5 This is a schematic diagram of the connection and limiting component structure of a welding frame for automobile welding production according to an embodiment of this utility model;

[0029] Figure 6 This is a schematic diagram of a fixed guide and limiting mechanism for a welding frame used in automobile welding production, according to an embodiment of this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Connecting mounting bracket;

[0032] 2. Movable clamping and flipping mechanism; 21. Connecting end rod; 22. Connecting mounting frame; 23. Fixing through slot; 24. Connecting bottom block; 25. Connecting clamping assembly; 26. Connecting limit assembly;

[0033] 251. Connecting mounting sleeve; 252. Servo motor; 253. Bidirectional threaded rod; 254. Movable mounting plate; 255. First connecting seat; 256. Movable deflection arm; 257. Second connecting seat; 258. Movable clamping plate; 259. Threaded sleeve; 2510. Movable threaded rod; 2511. Rotating end plate; 2512. Connecting end plate; 2513. Connecting sleeve; 2514. Connecting extrusion push plate; 2515. Fixed guide rod;

[0034] 261. Connecting mounting arm; 262. Connecting sleeve; 263. Movable insert rod; 264. Force-bearing sleeve; 265. Force-bearing spring; 266. Connecting pull ring; 267. Fixed limit ring; 268. Movable rotating sleeve;

[0035] 3. Fixed positioning hole;

[0036] 4. Fixed guide and limiting through groove;

[0037] 5. Fixed guide and limiting mechanism; 51. Connecting guide rod; 52. Limiting bolt;

[0038] 6. Install the base;

[0039] 7. Electric telescopic pole. Detailed Implementation

[0040] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0041] Example:

[0042] like Figures 1-6 As shown, a welding frame for automotive welding production includes:

[0043] The connecting mounting bracket 1 has through holes inside both ends; and symmetrical insertion holes are provided at both ends.

[0044] The movable clamping and flipping mechanism 2 is movably engaged with the inner side of the connecting mounting bracket 1; and its end is in contact with the inner side of the through hole on the inner side of the end of the connecting mounting bracket 1.

[0045] Fixed positioning holes 3 are symmetrically opened on the outer side of one end surface of the connecting mounting bracket 1;

[0046] Fixed guide and limiting through grooves 4 are symmetrically opened on both ends of the connecting mounting bracket 1;

[0047] The fixed guide limiting mechanism 5 is movably inserted into the inner side of the insertion hole at both ends of the connecting mounting bracket 1;

[0048] The mounting base 6 is fixedly mounted on the bottom end of the fixed guide and limit mechanism 5;

[0049] The electric telescopic rod 7 is symmetrically fixed on the top of the mounting base 6, and its output end is fixedly connected to the bottom end of the connecting mounting bracket 1.

[0050] The working principle of the above technical solution is as follows:

[0051] During use, the movable clamping and flipping mechanism 2 can clamp and fix the car parts, enabling stable welding. Then, the movable clamping and flipping mechanism 2 is flipped and connected with the fixed positioning hole 3, so that it can be in a stable fixed state after flipping, and the other side of the car parts can be welded. Then, when it is necessary to adjust the height of the connecting mounting bracket 1 and the movable clamping and flipping mechanism 2, the connecting mounting bracket 1 can be moved outside the surface of the fixed guide limiting mechanism 5 under the action of the electric telescopic rod 7, thereby adjusting the height of the connecting mounting bracket 1 and the movable clamping and flipping mechanism 2. The fixed guide limiting mechanism 5 cooperates with the fixed guide limiting through groove 4 to restrict the connecting mounting bracket 1 and prevent the connecting mounting bracket 1 from detaching from the outside surface of the fixed guide limiting mechanism 5, making operation convenient.

[0052] In another embodiment, such as Figure 2As shown, the movable clamping and flipping mechanism 2 includes a connecting end rod 21 located inside the through hole of the connecting mounting frame 1. A connecting mounting frame 22 is fixedly connected between the ends of adjacent connecting end rods 21. A connecting limiting component 26 is fixedly connected to one end of one of the connecting end rods 21. Fixed through slots 23 are provided on both sides of the connecting mounting frame 22. A connecting bottom block 24 is symmetrically provided at the bottom end of the connecting mounting frame 22. A connecting clamping component 25 is fixedly connected to both sides of the connecting mounting frame 22.

[0053] The car parts are placed on top of the connecting base block 24 and inside the connecting mounting frame 22. The connecting clamping assembly 25 is adjusted to clamp and fix the car parts. Then, when the car parts need to be flipped, the connecting limiting assembly 26 can be adjusted and shaken to drive the connecting end rod 21, the connecting mounting frame 22, the connecting base block 24, the connecting clamping assembly 25 and the car parts to rotate, thereby performing the flipping process. This allows the connecting limiting assembly 26 to connect and cooperate with the fixed positioning hole 3 for restriction and fixation, making the operation convenient and quick.

[0054] In another embodiment, such as Figure 4 As shown, the connecting clamping assembly 25 includes a connecting mounting sleeve 251. A bidirectional threaded rod 253 is movably connected inside the connecting mounting sleeve 251. A servo motor 252 is fixedly connected to one end of the bidirectional threaded rod 253. The servo motor 252 and one end of the connecting mounting sleeve 251 are fixedly connected to each other. A movable mounting plate 254 is symmetrically sleeved on the outer surface of the bidirectional threaded rod 253. A first connecting seat 255 is fixedly connected to one side of the movable mounting plate 254. A movable deflection arm 256 is movably connected to the inner side of the first connecting seat 255 through a connecting shaft. A second connecting seat 257 is movably connected to the other end of the movable deflection arm 256 through a connecting shaft. A movable clamping plate 258 is fixedly connected to one side of the second connecting seat 257.

[0055] The servo motor 252 drives the bidirectional threaded rod 253, so that when the bidirectional threaded rod 253 rotates, the movable mounting plate 254 can move on the outer side of the surface of the bidirectional threaded rod 253, which drives the first connecting seat 255 to move, causing the movable deflection arm 256 to deflect, pushing the second connecting seat 257, and driving the movable clamping plate 258 to move, thereby clamping the automotive parts.

[0056] In another embodiment, such as Figure 4As shown, a threaded sleeve 259 is fixedly connected to the middle of the side of the movable clamping plate 258 near the second connecting seat 257. A movable threaded rod 2510 is movably connected to the inner side of the threaded sleeve 259. The movable threaded rod 2510 and the inside of the threaded sleeve 259 slide against each other. A rotating end plate 2511 is fixedly connected to one end of the movable threaded rod 2510, and a connecting end plate 2512 is fixedly connected to the other end of the movable threaded rod 2510. A connecting sleeve block 2513 is movably sleeved on the outer side of the surface of the connecting end plate 2512. A connecting pressing push plate 2514 is fixedly connected to one side of the connecting sleeve block 2513. A fixed guide rod 2515 is symmetrically fixedly connected to the side of the connecting pressing push plate 2514 near the connecting sleeve block 2513. One end of the fixed guide rod 2515 passes through the interior of the movable clamping plate 258 and extends to the outside. A groove adapted to the connecting sleeve block 2513 and the connecting pressing push plate 2514 is provided on one side of the movable clamping plate 258.

[0057] After clamping the automotive parts, the movable clamping plate 258 can rotate the rotating end plate 2511, causing the movable threaded rod 2510 and the connecting end plate 2512 to rotate. This allows the connecting end plate 2512 to rotate stably inside the connecting sleeve block 2513. At the same time, the movable threaded rod 2510 moves inside the threaded sleeve 259, moving the connecting end plate 2512, the connecting sleeve block 2513, and the connecting pressing push plate 2514, further clamping and fixing the automotive parts. The structure is simple and the operation is convenient and quick.

[0058] In another embodiment, such as Figure 5 As shown, the connecting limiting assembly 26 includes a connecting mounting arm 261. A connecting sleeve 262 is fixedly connected to one end of the connecting mounting arm 261 away from the connecting end rod 21. A movable insert rod 263 is movably connected inside the connecting sleeve 262. A force-bearing sleeve 264 is fixedly sleeved on the outer surface of the movable insert rod 263. The force-bearing sleeve 264 is located inside the connecting sleeve 262. A force-bearing spring 265 is fixedly connected between the side of the force-bearing sleeve 264 away from the connecting mounting arm 261 and one end of the inner side of the connecting sleeve 262. A connecting pull ring 266 is fixedly connected to one end of the movable insert rod 263 away from the connecting mounting arm 261. The outer side of one end of the movable insert rod 263 is in contact with the inner side of the fixed positioning hole 3.

[0059] The connecting ring 266 is easy to pull, which drives the movable insert rod 263 and the force-bearing sleeve 264 to move, compressing the force-bearing spring 265, so that the end of the movable insert rod 263 can retract to the inside of the connecting sleeve 262, thereby making quick adjustments.

[0060] In another embodiment, such as Figure 5As shown, a fixed limiting ring 267 is symmetrically fixedly sleeved on the outer surface of the connecting sleeve 262, and a movable rotating sleeve 268 is movably sleeved on the outer surface of the connecting sleeve 262, with the movable rotating sleeve 268 positioned between adjacent fixed limiting rings 267.

[0061] The movable rotating sleeve 268 is easy to hold and shake, allowing it to deflect on the outer side of the connecting sleeve 262, thus enabling stable shaking and deflection adjustment, and making operation convenient.

[0062] In another embodiment, such as Figure 6 As shown, the fixed guide limiting mechanism 5 includes a connecting guide rod 51, and a limiting bolt 52 is provided on the upper inner side of the connecting guide rod 51. The connecting guide rod 51 is located inside the inner insertion hole of the connecting mounting bracket 1, and the limiting bolt 52 is located inside the fixed guide limiting through groove 4.

[0063] The connection mounting bracket 1 can move on the outside of the surface of the connecting guide rod 51. At the same time, the connection mounting bracket 1 can move on the outside of the limiting bolt 52 under the action of the fixed guide limiting through groove 4. Under the action of the limiting bolt 52, the connection mounting bracket 1 can be restricted, making the operation convenient and quick.

[0064] The working principle of this utility model is as follows: During use, the car component is placed on top of the connecting base block 24 and inside the connecting mounting frame 22. Then, the servo motor 252 drives the bidirectional threaded rod 253, causing the movable mounting plate 254 to move on the outer surface of the bidirectional threaded rod 253. This moves the first connecting seat 255, causing the movable deflection arm 256 to deflect and push the second connecting seat 257, which in turn moves the movable clamping plate 258 to clamp the car component. Then, the rotating end plate 2511 rotates, causing the movable threaded rod 2510 and the connecting end plate 2512 to rotate. The movement allows the connecting end plate 2512 to rotate stably inside the connecting sleeve block 2513, while the movable threaded rod 2510 moves inside the threaded sleeve 259, moving the connecting end plate 2512, the connecting sleeve block 2513, and the connecting extrusion push plate 2514. This causes the connecting sleeve block 2513 and the connecting extrusion push plate 2514 to disengage from the groove on one side of the movable clamping plate 258, further clamping and fixing the automotive component. When the height of the automotive component needs to be adjusted, the electric telescopic rod 7 can push the connecting mounting bracket 1, allowing the connecting mounting bracket 1 to move outside the surface of the connecting guide rod 51. At the same time, the limiting bolt 52 can be fixed in the guide limiting through groove. The inner side of 4 moves, and the limiting bolt 52 can limit the position of the connecting mounting bracket 1, and can adjust the overall height of the movable clamping and flipping mechanism 2 and the automobile parts. At this time, the welding process between the automobile parts can be stably carried out. When the automobile parts need to be flipped, the movable rotating sleeve 268 is gripped, and then the connecting pull ring 266 is pulled, which drives the movable insert rod 263 and the force-bearing sleeve 264 to move, compressing the force-bearing spring 265, so that the end of the movable insert rod 263 can retract to the inner side of the connecting sleeve 262, so that one end of the movable insert rod 263 is pulled out from the inner side of the fixed positioning insertion hole 3, and then the movable rotating sleeve 268 is shaken. The movable rotating sleeve 268 deflects on the outer surface of the connecting sleeve 262, causing the connecting mounting arm 261 to deflect, which in turn causes the movable clamping and flipping mechanism 2 and the entire car part to deflect, thus flipping the car part. After the flipping operation is completed, the movable insert rod 263 is aligned with another fixed positioning hole 3. Then, the connecting pull ring 266 is released. Under the action of the force-bearing sleeve plate 264 and the force-bearing spring 265, the movable insert rod 263 is reset, allowing the end of the movable insert rod 263 to be inserted into the inner side of the fixed positioning hole 3, thereby achieving connection and limiting. This ensures that the movable clamping and flipping mechanism 2 and the car part are in a stable state. The overall structure is simple and the operation is convenient and quick.

[0065] The above embodiments merely illustrate specific implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A welding frame for automobile welding production, characterized in that, include: The connecting mounting bracket (1) has through holes at both ends; and insertion holes are symmetrically provided at both ends. The movable clamping and flipping mechanism (2) is movably engaged with the inner side of the connecting mounting bracket (1); and its end is in contact with the inner side of the through hole on the inner side of the end of the connecting mounting bracket (1); Fixed positioning holes (3) are symmetrically opened on the outer side of one end surface of the connecting mounting bracket (1); Fixed guide limiting through grooves (4) are symmetrically opened on both ends of the connecting mounting bracket (1); The fixed guide limiting mechanism (5) is movably inserted into the inner side of the insertion hole at both ends of the connecting mounting bracket (1); Mounting base (6), which is fixedly disposed at the bottom end of the fixed guide limiting mechanism (5); An electric telescopic rod (7) is symmetrically fixed on the top of the mounting base (6), and its output end is fixedly connected to the bottom end of the connecting mounting bracket (1).

2. The welding frame for automotive welding production according to claim 1, characterized in that: The movable clamping and flipping mechanism (2) includes a connecting end rod (21) located inside the through hole of the connecting mounting frame (1). A connecting mounting frame (22) is fixedly connected between the ends of adjacent connecting end rods (21). A connecting limiting component (26) is fixedly connected to one end of one of the connecting end rods (21). Fixed through slots (23) are provided on both sides of the connecting mounting frame (22). A connecting bottom block (24) is symmetrically provided at the bottom end of the connecting mounting frame (22). A connecting clamping component (25) is fixedly connected to both sides of the connecting mounting frame (22).

3. The welding frame for automotive welding production according to claim 2, characterized in that: The connecting clamping assembly (25) includes a connecting mounting sleeve (251). A bidirectional threaded rod (253) is movably connected inside the connecting mounting sleeve (251). A servo motor (252) is fixedly connected to one end of the bidirectional threaded rod (253). The servo motor (252) and one end of the connecting mounting sleeve (251) are fixedly connected to each other. A movable mounting plate (254) is symmetrically sleeved on the outer surface of the bidirectional threaded rod (253). A first connecting seat (255) is fixedly connected to one side of the movable mounting plate (254). A movable deflection arm (256) is movably connected to the inner side of the first connecting seat (255) through a connecting shaft. A second connecting seat (257) is movably connected to the other end of the movable deflection arm (256) through a connecting shaft. A movable clamping plate (258) is fixedly connected to one side of the second connecting seat (257).

4. The welding frame for automotive welding production according to claim 3, characterized in that: A threaded sleeve (259) is fixedly connected to the middle of the side of the movable clamping plate (258) near the second connecting seat (257). A movable threaded rod (2510) is movably connected to the inner side of the threaded sleeve (259). The movable threaded rod (2510) and the inside of the threaded sleeve (259) slide against each other. A rotating end plate (2511) is fixedly connected to one end of the movable threaded rod (2510), and a connecting end plate (2512) is fixedly connected to the other end of the movable threaded rod (2510). The surface of the connecting end plate (2512) is... A connecting sleeve block (2513) is movably sleeved on the outer side. A connecting extrusion push plate (2514) is fixedly connected to one side of the connecting sleeve block (2513). A fixed guide rod (2515) is symmetrically fixedly connected to the side of the connecting extrusion push plate (2514) near the connecting sleeve block (2513). One end of the fixed guide rod (2515) passes through the interior of the movable clamping plate (258) and extends to the outside. A groove adapted to the connecting sleeve block (2513) and the connecting extrusion push plate (2514) is opened on one side of the movable clamping plate (258).

5. A welding frame for automotive welding production according to claim 2, characterized in that: The connecting limiting assembly (26) includes a connecting mounting arm (261). A connecting sleeve (262) is fixedly connected to one end of the connecting mounting arm (261) away from the connecting end rod (21). A movable insert rod (263) is movably connected inside the connecting sleeve (262). A force-bearing sleeve plate (264) is fixedly sleeved on the outer surface of the movable insert rod (263). The force-bearing sleeve plate (264) is located inside the connecting sleeve (262). A force-bearing spring (265) is fixedly connected between the side of the force-bearing sleeve plate (264) away from the connecting mounting arm (261) and one end of the connecting sleeve (262). A connecting pull ring (266) is fixedly connected to one end of the movable insert rod (263) away from the connecting mounting arm (261). The outer side of one end of the movable insert rod (263) is in contact with the inner side of the fixed positioning hole (3).

6. A welding frame for automotive welding production according to claim 5, characterized in that: The connecting sleeve (262) is symmetrically and fixedly fitted with fixed limiting rings (267) on its outer surface, and the connecting sleeve (262) is movably fitted with a movable rotating sleeve (268) on its outer surface, and the movable rotating sleeve (268) is located between adjacent fixed limiting rings (267).

7. A welding frame for automotive welding production according to claim 1, characterized in that: The fixed guide limiting mechanism (5) includes a connecting guide rod (51), and a limiting bolt (52) is provided on the upper inner side of the connecting guide rod (51). The connecting guide rod (51) is located inside the inner hole of the connecting mounting bracket (1), and the limiting bolt (52) is located inside the fixed guide limiting through groove (4).

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