Automated welding device for automobile seat frame

Abstract

The present application relates to the field of welding device, especially to an automatic welding device for automobile seat framework. It comprises a welding chamber, a rotating table, a rotating seat, a cushion limiting frame, a backrest limiting frame and a limiting assembly. The rotating table is arranged in the middle warehouse; the multi-axis automatic welding robot is arranged on the rotating table; the rotating seat is arranged in the side warehouse; the limiting table is arranged on the rotating seat; the cushion limiting frame is slidingly arranged at both ends of the limiting table; the backrest limiting frame is arranged between the two groups of cushion limiting frames; the limiting assembly is arranged in multiple groups and is respectively arranged on the cushion limiting frame and the backrest limiting frame. The present application forms a limiting support structure matched with the automobile seat framework, which assists the connection of the cushion framework and the backrest framework. The mobile frame is arranged to move and rotate to splice the bones into shape, and the joint position is positioned, and the framework is clamped and positioned. The framework position is stable during welding, the joint connection is accurate, and the welding effect is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of welding equipment, and more particularly to an automated welding device for automotive seat frames. Background Technology

[0002] The welding of the car seat frame directly affects the structural strength, safety, and durability of the seat. The main welding locations are as follows:

[0003] 1. Backrest frame:

[0004] Closed-profile welding: The two ends of steel tubes or stamped parts that form the backrest profile (usually U-shaped or rectangular) are welded together to form a closed structure. This is the main load-bearing frame.

[0005] Welding of reinforcing ribs / support rods: Welding transverse or longitudinal reinforcing ribs (tubular or stamped parts) inside the backrest frame to increase bending stiffness and lateral support.

[0006] Seat adjuster mounting point welding: Weld the mounting plate or bracket of the seat adjuster (used to adjust the backrest angle) to the side or bottom of the backrest frame. This is an extremely critical high-stress area.

[0007] 2. Seat cushion frame:

[0008] Front crossbeam welding: Welding of the crossbeam at the front of the seat (which bears the pressure of the passenger's thighs) to the left and right side beams or slide rails.

[0009] Side beam welding: Welding of the longitudinal beams on both sides of the seat cushion (which transfer the load to the slide rail) to the front crossbeam, rear crossbeam, and slide rail connecting parts.

[0010] Rear crossbeam welding: The crossbeam at the rear of the seat cushion (connects the two side beams and supports the rear of the buttocks).

[0011] Chinese Patent CN221621298U discloses a welding apparatus for processing automotive seats, including a base box with a supporting rotating rod rotatably connected to it. Multiple top frames and multiple base frames are fixedly connected to the supporting rotating rod. The top frames are equipped with a collection mechanism for absorbing fumes. By placing the automotive seat to be welded on a welding platform and securing it with a fixing mechanism, the operator uses an external welding torch to weld the seat. An adjustment mechanism rotates the welding platform on the base frames, causing the seat to rotate horizontally during the clamping process. The seat frame can be fully welded without disassembling the fixed seat. The fumes generated during welding are collected and absorbed by the suction hood of the collection mechanism.

[0012] The aforementioned automotive seat frame welding device has the following shortcomings: it does not perform targeted positioning for the backrest frame and seat cushion frame separately, but only uses clamping from both sides for uniform overall fixation. Therefore, before welding, the frame connection position and angle need to be manually adjusted, and the frames need to be manually spliced ​​before positioning and welding. The stability of the frame cannot be guaranteed during the welding process, and the welding efficiency is low and the results are inconsistent, thus affecting the quality of the automotive seat. Summary of the Invention

[0013] To address the problems existing in the background technology, an automated welding device for automotive seat frames is proposed. This device assists in the connection between the seat cushion frame and the backrest frame by forming a limiting support structure that matches the automotive seat frame. A moving and rotating mechanism is used to assemble the frames, simultaneously locating the joints and clamping the frame in place. During welding, the frame position is stable, the joint connection is precise, and the welding effect is guaranteed.

[0014] This invention proposes an automated welding device for automotive seat frames, including a welding chamber, a rotating table, a rotating seat, a seat cushion limiting frame, a backrest limiting frame, and limiting components. The welding chamber includes a central compartment and side compartments located at both ends of the central compartment. The side compartments have openings for manual operation. A rotating table is located in the central compartment. A multi-axis automatic welding robot is mounted on the rotating table, rotating to align with the corresponding side compartment. A rotating seat is located in the side compartment. A limiting platform is mounted on the rotating seat, rotating to align with the multi-axis automatic welding robot. Seat cushion limiting frames are slidably mounted at both ends of the limiting platform. Backrest limiting frames are positioned between two sets of seat cushion limiting frames. By lifting and rotating, the position and angle of the backrest limiting frames are adjusted so that the limiting support structure formed by the backrest and seat cushion limiting frames meets the welding requirements of the automotive seat frame. Multiple limiting components are provided. Some limiting components are located on the seat cushion limiting frames, moving along a cross-shaped trajectory to provide limiting support for the seat cushion frame from the outer periphery. Other limiting components are located at the front and rear ends of the backrest limiting frames, moving along a frame-shaped trajectory to provide limiting support for the backrest frame from the rear.

[0015] Preferably, the rotating seat includes a fixed seat located at the bottom of the side compartment and a turntable rotatably mounted on the fixed seat; a limiting platform is mounted on the turntable, with sliding grooves with electric slide rails on both sides of the limiting platform and a driving component in the middle; the seat cushion limiting frame slides in the sliding groove by cooperating with the electric slide rails; the backrest limiting frame is driven by the driving component to achieve lifting and lowering and flipping of the seat cushion limiting frame towards both sides.

[0016] Preferably, the seat cushion limiting frame is provided with a slot one for the limiting component to move along a cross-shaped trajectory; the backrest limiting frame is provided with a slot two for the limiting component to move along a frame-shaped trajectory.

[0017] Preferably, the limiting component includes a sliding plate that moves along groove one or groove two; groove three is provided on the sliding plate; groove three corresponding to groove one is vertically arranged, and groove three corresponding to groove two is horizontally arranged; a movable seat moves and rotates along groove three, and groove four is provided on the movable seat; a movable frame is arranged on the movable seat, moves and rotates along groove four, and clamping parts and joint positioning parts are provided on the movable frame.

[0018] Preferably, two sets of movable frames are provided, and the two sets of movable frames move horizontally in opposite directions to reserve welding space. On the one hand, the joint position is positioned, and on the other hand, the frame is positioned from both sides of the joint. The movable frame has a U-shaped structure, and the horizontal section moves and rotates on the movable seat. The joint positioning component is set on the horizontal section. The clamping components are arranged in a mirror image on the vertical sections on both sides.

[0019] Preferably, the seam positioning element is set as a vision sensor.

[0020] Preferably, the vertical section of the movable frame is provided with through slots with opposite openings; the clamping component includes a sliding block slidably disposed in the through slot; one end of the sliding block extends into the U-shaped structure of the movable frame and is provided with an electric clamping wheel, and the other end extends out of the U-shaped structure of the movable frame and is provided with a magnetic limiting plate; a guide rod is provided through the magnetic limiting plate; one end of the guide rod is connected to the movable frame, the other end is connected to an electromagnetic base, and a spring is sleeved on its outer periphery; the rotation direction of the electric clamping wheel is consistent with the length direction of the car seat frame; the magnetism generated by the electromagnetic base after being energized is opposite to that of the magnetic limiting plate; one end of the spring is connected to the electromagnetic base, and the other end is connected to the magnetic limiting plate, pushing the electromagnetic base and the magnetic limiting plate away from each other.

[0021] Preferably, a smoking area is provided at the opposite ends of the two sets of movable frames; a smoking port with a slag-blocking screen is provided in the smoking area; the smoking port is connected to a smoke collector with a smoke pump and communicates with the welding space.

[0022] Preferably, the welding chamber is dumbbell-shaped.

[0023] Preferably, a machine vision inspection system and an air outlet baffle are installed on the inner wall of the welding chamber; the air outlet baffle is located near the opening of the side chamber and isolates the high-temperature welding fumes through air outlet.

[0024] Compared with existing technologies, this invention has the following beneficial technical effects: A dumbbell-shaped welding chamber is set up, and a multi-axis automatic welding robot rotates synchronously to perform welding operations on the side chambers on both sides in turn. The rotating seat of the side chamber further switches welding positions by rotating, resulting in a compact welding structure and efficient welding operation. During welding, the rotation of the seat cushion limiting frame and the rotation and lifting of the backrest limiting frame form a limiting support structure that matches the seat cushion frame and backrest frame, assisting in the connection between the seat cushion frame and backrest frame. Specifically, the moving frame on the seat cushion limiting frame moves and rotates from the periphery along the outer wall of the seat cushion frame, and the moving frame on the backrest limiting frame moves and rotates from the bottom along the outer wall of the backrest frame. During this process, the seam positioning component positions the seam. The clamping component moves with the moving frame to both sides of the seam to clamp and position the frame. The multi-axis automatic welding robot performs welding work within the welding space between the two sets of moving frames. During welding, the frame position is stable, the seam connection is precise, and the welding effect is guaranteed. With the fume extraction port exposed, welding fumes are collected. A machine vision inspection system monitors the molten pool morphology and arc stability in real time, automatically identifying surface defects at the weld. The entire welding process is automated, efficient, and environmentally friendly. Attached Figure Description

[0025] Figure 1 Structural diagram of an automated welding device for automotive seat frames;

[0026] Figure 2 This is a sectional view of the welding chamber;

[0027] Figure 3 Here is a structural diagram of the rotating seat (view 1);

[0028] Figure 4 Here is a structural diagram of the rotating seat (perspective two);

[0029] Figure 5 This is a structural diagram of the limit component;

[0030] Figure 6 This is a sectional view of the limiting component.

[0031] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0032] Figure 8 for Figure 5 Enlarged view at point B;

[0033] Figure 9 for Figure 1 Enlarged view of point C.

[0034] Reference numerals: 1. Side compartment; 1001. Slide groove; 2. Middle compartment; 3. Rotating seat; 301. Fixed seat; 302. Turntable; 4. Backrest limiting frame; 401. Slot 2; 402. Motor; 403. Lifting cylinder; 5. Seat cushion limiting frame; 501. Slot 1; 6. Limiting component; 601. Slide plate; 602. Slot 3; 603. Moving seat; 604. Slot 4; 605. Moving frame; 60501. Through slot; 606. Clamping component; 60601, Electric clamping wheel; 60602, Magnetic limiting plate; 60603, Guide rod; 60604, Electromagnetic base; 60605, Spring; 60606, Sliding block; 607, Smoking area; 608, Smoking port; 609, Seam positioning component; 7, Rotary table; 8, Multi-axis automatic welding robot; 9, Machine vision inspection system; 10, Limiting platform; 11, Air outlet partition component; 1101, Air outlet frame; 1102, Air box. Detailed Implementation

[0035] Example 1: This invention proposes an automated welding device for automotive seat frames, such as... Figures 1-2 As shown, the system includes a welding chamber, a rotating table 7, a rotating seat 3, a seat cushion limiting frame 5, a backrest limiting frame 4, and a limiting assembly 6. The welding chamber includes a central compartment 2 and side compartments 1 located at both ends of the central compartment 2; the side compartments 1 have openings on their exteriors for manual operation; the rotating table 7 is located in the central compartment 2; a multi-axis automatic welding robot 8 is mounted on the rotating table 7, and its position is switched by rotation to be opposite to the corresponding side compartment 1; the rotating seat 3 is located in the side compartment 1; the limiting platform 10 is mounted on the rotating seat 3, and its position is switched by rotation to be opposite to the multi-axis automatic welding robot 8; the seat cushion limiting frame 5 is slidably mounted at both ends of the limiting platform 10; the backrest limiting frame 4 is located between the two sets of seat cushion limiting frames 5, and its position and angle are adjusted by lifting and rotating to make the limiting support structure formed by it and the seat cushion limiting frame 5 meet the welding requirements of the automotive seat frame. Multiple sets of limiting components 6 are provided. One set of limiting components 6 is located on the seat cushion limiting frame 5. By moving along the cross-shaped trajectory, it provides limiting support for the seat cushion frame from the outer periphery. Another set of limiting components 6 is located at the front and rear ends of the backrest limiting frame 4. By moving along the frame-shaped trajectory, it provides limiting support for the backrest frame from the rear.

[0036] like Figures 3-4 As shown, the rotating seat 3 includes a fixed seat 301 located at the bottom of the side compartment 1 and a turntable 302 rotatably mounted on the fixed seat 301; a limiting platform 10 is mounted on the turntable 302, and sliding grooves 1001 with electric sliding rails are provided on both sides of the limiting platform 10, with a driving component in the middle; the seat cushion limiting frame 5 slides in the sliding groove 1001 by cooperating with the electric sliding rail; the backrest limiting frame 4 is driven by the driving component to achieve lifting and turning of the seat cushion limiting frame 5 towards both sides.

[0037] It should be further explained that the driving component includes a lifting cylinder 403 located between two sets of slides 1001; a motor 402 is provided on the telescopic end of the lifting cylinder 403; the backrest limit frame 4 achieves lifting and flipping through the main shaft connected to the motor 402.

[0038] As the turntable 302 rotates, the seat cushion limiting frames 5 on both sides rotate synchronously, switching positions to be opposite or intersecting with the multi-axis automatic welding robot 8; by sliding the seat cushion limiting frame 5, the position of the seat cushion frame can be adjusted, and in conjunction with the lifting and flipping of the backrest limiting frame 4, a limiting support structure matching the car seat frame can be formed.

[0039] It should be further explained that the seat cushion limiting frame 5 is provided with a slot 501 for the limiting component 6 to move along a cross-shaped trajectory; the backrest limiting frame 4 is provided with a slot 401 for the limiting component 6 to move along a frame-shaped trajectory.

[0040] Since the backrest frame is usually a U-shaped or rectangular steel pipe or stamped part with both ends welded together to form a closed structure, and the overall structure is a relatively slender frame, a limiting component 6 is set to limit and support it from the rear of the frame structure so that the multi-axis automatic welding robot 8 can perform welding from the front.

[0041] The seat frame needs to withstand the pressure of the passenger's thighs and buttocks. It adopts a thicker and wider beam structure with an opening in the middle and an irregular inner wall. Therefore, a limiting component 6 is set to limit and support it from the outside of the beam structure so that the multi-axis automatic welding robot 8 can weld from above.

[0042] like Figures 5-6 As shown, the limiting component 6 includes a sliding plate 601 that moves along groove 1 501 or groove 2 401; groove 3 602 is provided on the sliding plate 601; groove 3 602 of groove 1 501 is vertically arranged, and groove 3 602 of groove 2 401 is horizontally arranged.

[0043] It should be further explained that the movable seat 603 moves and rotates along the groove three 602, and the movable seat 603 is provided with the groove four 604.

[0044] It should be further explained that the movable frame 605 is mounted on the movable seat 603 and moves and rotates along the groove 604. The movable frame 605 is equipped with a clamping member 606 and a seam positioning member 609.

[0045] It should be further explained that each of the slots 501, 401, 602, and 604 is equipped with a lead screw structure. The motor drives the lead screw to rotate, thereby driving the corresponding threaded connection structure to move.

[0046] The movable frame 605 can move and rotate in multiple directions, thereby driving the clamping component 606 to adjust its position and angle synchronously to meet the clamping and positioning requirements of the backrest frame and the seat cushion frame.

[0047] It should be further explained that the movable frame 605 is set in two sets. The two sets of movable frames 605 move horizontally in opposite directions in cooperation with the reverse lead screw to reserve welding space. On the one hand, it positions the joint, and on the other hand, it positions the frame from both sides of the joint.

[0048] It should be further explained that the movable frame 605 has a U-shaped structure, and the horizontal section moves and rotates on the movable seat 603; the seam positioning component 609 is set on the horizontal section; and the clamping component 606 is arranged in a mirror image on the vertical sections on both sides.

[0049] Before welding, the U-shaped moving frame 605 moves along the car seat frame. Specifically, the moving frame 605 on the seat cushion limiting frame 5 moves and rotates along the outer wall of the seat cushion frame from the periphery, while the moving frame 605 on the backrest limiting frame 4 moves and rotates along the outer wall of the backrest frame from the bottom. During this process, the seam positioning component 609 positions the seam. The clamping component 606 moves with the moving frame 605 to both sides of the seam to clamp and position the frame. The multi-axis automatic welding robot 8 performs welding work within the welding space between the two sets of moving frames 605. During welding, the frame is stable, the seam connection is precise, and the welding effect is guaranteed.

[0050] It should be further explained that the joint positioning component 609 is set as a vision sensor, which uses a camera (usually an industrial camera) to capture images of the weld area and uses image processing algorithms to identify the characteristics of the weld (such as edges, bevel shape, laser line deformation, etc.) to determine the position and direction of the weld.

[0051] It needs to be further explained that, such as Figure 7 As shown, the vertical section of the movable frame 605 is provided with a through groove 60501 with opposite openings; the clamping member 606 includes a sliding block 60606 slidably disposed in the through groove 60501; one end of the sliding block 60606 extends into the U-shaped structure of the movable frame 605 and is provided with an electric clamping wheel 60601, and the other end extends out of the U-shaped structure of the movable frame 605 and is provided with a magnetic limiting plate 60602; a guide rod 60603 is provided through the magnetic limiting plate 60602; one end of the guide rod 60603 is connected to the movable frame 605, the other end is connected to an electromagnetic base 60604, and a spring 60605 is sleeved on its outer periphery.

[0052] It should be further noted that the rotation direction of the electric clamping wheel 60601 is consistent with the length direction of the car seat frame.

[0053] It should be further noted that the magnetism generated by the electromagnetic base 60604 after being energized is opposite to that of the magnetic limiting plate 60602.

[0054] It should be further explained that one end of the spring 60605 is connected to the electromagnetic base 60604, and the other end is connected to the magnetic limiting plate 60602, pushing the electromagnetic base 60604 and the magnetic limiting plate 60602 away from each other.

[0055] When the electromagnetic base 60604 is energized, the spring 60605 pushes, causing the electric clamping wheels 60601 to abut against the car seat frame from both sides for positioning. As the moving frame 605 moves and rotates, the sliding block 60606 slides within the through groove 60501 to ensure proper contact between the electric clamping wheels 60601 and the seat frame. This satisfies the positioning requirements of frames of different shapes and sizes.

[0056] It needs to be further explained that, such as Figure 8 As shown, a smoking area 607 is provided on the opposite ends of the two sets of movable frames 605; a smoking port 608 with a slag-blocking net is provided on the smoking area 607; the smoking port 608 is connected to a smoke collector with a smoke pump and communicates with the welding space.

[0057] It should be further noted that a filter is installed inside the smoke collector to absorb smoke.

[0058] Normally, the two sets of movable frames 605 are brought together to seal the fume extraction port 608, reducing the entry of debris. Before welding, the two sets of movable frames 605 are separated to allow welding space. The welding head of the multi-axis automatic welding robot 8 extends into the welding space to perform welding. At this time, the fume extraction port 608 is exposed to collect welding fumes.

[0059] like Figures 1-2 As shown, the welding chamber is dumbbell-shaped. The overall structure is compact, with the multi-axis automatic welding robot 8 located in the middle of the dumbbell shape, allowing it to alternately weld both sides.

[0060] like Figure 9 As shown, a machine vision inspection system 9 and an air outlet baffle 11 are installed on the inner wall of the welding chamber; the air outlet baffle 11 is located at the opening of the side chamber 1 and isolates the high-temperature welding fumes through air outlet.

[0061] It should be further explained that the air outlet partition 11 includes an air box 1102 and an air outlet frame 1101 connected to the air box 1102; the air outlet frame 1101 is arranged along the height direction of the side compartment 1.

[0062] The machine vision inspection system 9 can monitor the molten pool morphology and arc stability in real time, and can automatically identify surface defects after welding. The air outlet baffle 11 supplies air through the opening towards the side chamber 1 to reduce the leakage of high-temperature welding fumes, thereby ensuring the safety of the workers.

[0063] Example 2: Based on the automated welding device for automotive seat frames in Example 1, this example proposes an automated welding method for automotive seat frames, with the following steps:

[0064] The worker stands at the opening of side compartment 1. As turntable 302 rotates, the limiting platform 10 rotates until the empty seat cushion limiting frame 5 and backrest limiting frame 4 on both sides are opposite the opening. The worker installs the multi-section backrest frame to be welded onto backrest limiting frame 4 and the multi-section seat cushion frame to be welded onto seat cushion limiting frame 5. During installation, the electromagnetic base 60604 is energized, and the spring 60605 pushes, causing the electric clamping wheels 60601 to press against the car seat frame from both sides to position it. The frame 605 moves and rotates, and the sliding block 60606 slides within the through groove 60501 to ensure the fit between the electric clamping wheel 60601 and the seat frame, meeting the positioning requirements of frames of different shapes and sizes. Next, the moving frame 605 on the seat cushion limiting frame 5 moves and rotates from the periphery along the outer wall of the multi-segment seat cushion frame, and the moving frame 605 on the backrest limiting frame 4 moves and rotates from the bottom along the outer wall of the multi-segment backrest frame. During this process, the seam positioning component 609 positions the seam, positioning it to the desired location. When welding, the slide plate 601 stops moving; the clamping component 606 moves with the moving frame 605 to both sides of the joint to clamp and position the frame, so that the seat cushion frame and backrest frame are spliced ​​together; the backrest limiting frame 4 rotates and rises and falls, and the seat cushion limiting frame 5 moves to further splice the seat cushion frame and backrest frame, so that the two are connected at a certain angle and position to meet the welding requirements; the multi-axis automatic welding robot 8 performs welding work in the welding space between the two sets of moving frames 605; the smoke port 608 is exposed to collect welding fumes; the machine vision inspection system 9 monitors the molten pool shape and arc stability in real time, and automatically identifies surface defects after welding; the air outlet baffle 11 delivers air through the opening towards the side compartment 1 to reduce the overflow of high-temperature welding fumes to ensure the safety of the workers; the multi-axis automatic welding robot 8 rotates to the other side to perform welding; the welded car seat frame rotates to the opening of the side compartment 1; the workers disassemble the inspected car seat frame and install a new frame to be welded.

[0065] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. An automated welding device for an automobile seat frame, characterized by, The utility model relates to a kind of multi-axis automatic welding machine for automobile seat skeleton, including: Welding chamber, welding chamber includes middle bin (2) and edge bin (1) located at both ends of middle bin (2); The outside of edge bin (1) is provided with opening for manual operation; Rotary table (7), rotary table (7) is set in middle bin (2);Multi-axis automatic welding robot (8) is set on rotary table (7), and position is switched to opposite with corresponding edge bin (1) by rotation; Rotary seat (3), rotary seat (3) is set in edge bin (1);Limiting table (10) is set on rotary seat (3), and position is switched to opposite with multi-axis automatic welding robot (8) by rotation; Cushion limiting frame (5), cushion limiting frame (5) is slidably set in both ends of limiting table (10); Backrest limiting frame (4), backrest limiting frame (4) is set between two groups of cushion limiting frame (5), and the position and angle of backrest limiting frame (4) are adjusted by lifting and rotating, so that it meets the welding demand of automobile seat skeleton with the limiting support structure formed by cushion limiting frame (5); And limiting component (6), limiting component (6) is set multiple groups, part limiting component (6) is located on cushion limiting frame (5), and is supported from periphery by moving along cross-shaped track to limit cushion skeleton, another part limiting component (6) is located at the front and rear end of backrest limiting frame (4), and is supported from rear side by moving along frame-shaped track to limit backrest skeleton; Limiting component (6) includes sliding plate (601) moving along groove one (501) or groove two (401);Sliding plate (601) is provided with groove three (602);Corresponding groove three (602) of groove one (501) is vertically set, and corresponding groove three (602) of groove two (401) is horizontally set;Movable seat (603) moves and rotates along groove three (602), and movable seat (603) is provided with groove four (604);Movable frame (605) is set on movable seat (603), moves and rotates along groove four (604), and movable frame (605) is provided with clamping piece (606) and joint positioning piece (609); Movable frame (605) is set two groups, and two groups of movable frame (605) make reverse horizontal movement, to reserve welding space, on the one hand, joint position is positioned, and on the other hand, skeleton is positioned from both sides of joint;Movable frame (605) is of U-shaped structure, and horizontal section moves and rotates on movable seat (603);Joint positioning piece (609) is set on horizontal section;Clamping piece (606) is mirror image arranged on vertical section on both sides; The vertical section of the moving frame (605) is provided with an open opposite through groove (60501); the clamping piece (606) comprises a sliding block (60606) slidingly arranged in the through groove (60501); one end of the sliding block (60606) extends into the U-shaped structure of the moving frame (605) and is provided with an electric clamping wheel (60601), and the other end extends out of the U-shaped structure of the moving frame (605) and is provided with a magnetic limiting plate (60602); the magnetic limiting plate (60602) is provided with a guide rod (60603) penetrating therethrough; one end of the guide rod (60603) is connected with the moving frame (605), and the other end is connected with an electromagnetic seat (60604), and a spring (60605) is sleeved on the outer periphery; the rotation direction of the electric clamping wheel (60601) is consistent with the length direction of the automobile seat framework; the magnetism generated after the electromagnetic seat (60604) is electrified is opposite to the magnetic limiting plate (60602); one end of the spring (60605) is connected with the electromagnetic seat (60604), and the other end is connected with the magnetic limiting plate (60602), so as to drive the electromagnetic seat (60604) and the magnetic limiting plate (60602) to move away.

2. The apparatus for automated welding of automotive seat frames as claimed in claim 1, wherein, The rotating seat (3) comprises a fixed seat (301) located at the bottom of the side bin (1) and a rotating disc (302) rotatably arranged on the fixed seat (301); The limiting table (10) is arranged on the rotating disc (302), both sides of the limiting table (10) are provided with a sliding groove (1001) with an electric sliding rail, and the middle part is provided with a driving piece; the cushion limiting frame (5) slides in the sliding groove (1001) by cooperating with the electric sliding rail; the backrest limiting frame (4) is driven to realize lifting and overturning towards the cushion limiting frame (5) on both sides by the driving piece.

3. The apparatus for automated welding of automotive seat frames as claimed in claim 1, wherein, The cushion limiting frame (5) is provided with a groove one (501) for the limiting assembly (6) to move along a cross-shaped track; the backrest limiting frame (4) is provided with a groove two (401) for the limiting assembly (6) to move along a frame-shaped track.

4. The apparatus for automated welding of automotive seat frames as claimed in claim 1, wherein, The joint positioning piece (609) is a visual sensor.

5. The apparatus for automated welding of automotive seat frames as claimed in claim 1, wherein, The opposite ends of the two groups of moving frames (605) are provided with a smoking area (607); the smoking area (607) is provided with a smoking port (608) with a slag blocking net; the smoking port (608) is connected with a smoke collector with a smoke pumping pump and communicates with the welding space.

6. The apparatus for automated welding of automotive seat frames as claimed in claim 1, wherein, The welding chamber is dumbbell-shaped.

7. The apparatus according to claim 6, wherein A machine vision detection system (9) and an air outlet partition piece (11) are arranged on the inner wall of the welding chamber; the air outlet partition piece (11) is located at the opening of the side bin (1) and separates the welding high-temperature smoke by air outlet.

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