A welding clamping and fixing device for automobile seat frame

Abstract

The present invention belongs to the technical field of automobile seat manufacturing, and in particular to a welding clamping and fixing device for an automobile seat frame. In order to solve the problem that the clamping and fixing device cannot be moved after fixing the frame, and is inconvenient to adjust the position and direction of the frame, the following scheme is proposed, including a working base plate, a bearing column is fixedly inserted at the center of the upper surface of the working base plate, and the outer circumferential wall of the bearing column is rotatably connected to a turntable near the top, the lower surface of the turntable is evenly fixed with support columns near the circumferential edge, and a rectangular plate is welded to the bottom end of the support column, and the lower surface of the rectangular plate is welded with clamping blocks near both sides, and the bottom ends of the two clamping blocks are clamped to the same wheel axle. By setting a turntable, the present invention can adjust the direction of clamping the seat frame, thereby changing the welding angle to ensure the uniformity and welding quality of the weld, reduce the posture adjustment of the welder, reduce the complexity of manual operation, and make the welding process more efficient.

Description

Technical Field

[0001] The invention relates to the technical field of automobile seat manufacturing, and in particular to a welding, clamping and fixing device for an automobile seat frame. Background Art

[0002] Car seats are not only one of the components in a vehicle that comes into direct contact with passengers, but also play a key role in driving safety, comfort, and functionality. A well-designed and fully functional seat can significantly enhance the driving experience, provide passengers with high-quality comfort and support, and also help reduce fatigue caused by long rides. Therefore, the design and manufacture of car seats are directly related to the overall performance of the vehicle and the safety of passengers, becoming an indispensable core part of modern cars.

[0003] When the seat frame is being welded or other operations are being performed, the frame workpiece needs to be accurately clamped and fixed. The existing clamping and fixing devices cannot be moved after fixing the frame, which makes it inconvenient to adjust the position and direction of the frame, easily hinders welding, increases the difficulty of welding, and may also affect the strength after welding. In addition, the frame clamping device has poor adaptability and cannot meet the clamping requirements after the workpiece is improved, which easily causes inaccurate positioning. For this reason, a welding clamping and fixing device for a car seat frame is proposed. Summary of the Invention

[0004] The present invention provides a welding clamping and fixing device for an automobile seat frame in order to solve the problem that the clamping and fixing device cannot be moved after fixing the frame, making it inconvenient to adjust the position and direction of the frame.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a welding, clamping and fixing device for a car seat frame, comprising a working base plate, a bearing column is inserted and fixed at the center of the upper surface of the working base plate, and the circumferential outer wall of the bearing column is rotatably connected to a turntable near the top, the lower surface of the turntable is evenly inserted and fixed with support columns near the circumferential edge, and a rectangular plate is welded to the bottom end of the support column, and blocks are welded to the lower surface of the rectangular plate near both sides, and the bottom ends of the two blocks are clamped to the same wheel axle, the circumferential outer wall of the wheel axle is rotatably connected to a roller near the middle, the upper surface of the turntable is installed with a translation mechanism near both sides, and the translation mechanism includes a loading column, the inner wall of the loading column is installed with a lifting mechanism, and the lifting mechanism includes a loading shaft, and the loading shaft is installed with a changing mechanism at one end near the middle of the turntable, and the changing mechanism includes a changing knot.

[0006] A further arrangement of the present invention is that an annular wheel groove is opened on the upper surface of the working base plate near the bottom end of the roller, and the annular wheel groove is adapted to the roller, a spring washer is fixed by bolts near the circumferential edge at one end of the upper surface of the turntable, and a contraction spring is welded on the upper surface of the spring washer at a position deviating from the center of the circle, and a limiting disk is welded on the top of the contraction spring, a limiting rod is fixed by bolts at the center of the circle of the lower surface of the limiting disk, and the limiting rod passes through the turntable, limiting holes are evenly opened on the outer periphery of the annular wheel groove on the upper surface of the working base plate, and the limiting holes are adapted to the limiting rod, and a scale groove is opened on the upper surface of the working base plate near the outer periphery of the limiting hole, and the scale groove and the limiting hole match.

[0007] A further arrangement of the present invention is that the translation mechanism includes a bearing plate, bearing plates are installed on the upper surface of the turntable near both sides, and a translation groove is opened near the middle of the upper surface of the bearing plate, and a pair of pulleys are placed at the bottom of the translation groove near the inner walls of both ends, the adjacent ends of the two pairs of pulleys are rotatably connected to the bearing shaft, and the circumferential inner walls of the two bearing shafts are rotatably connected to support blocks near the middle, the top ends of the two support blocks are fixed with the same pad by bolts, and the upper surface of the pad is welded with a loading column.

[0008] A further arrangement of the present invention is that the bottom of the translation groove is fixed with a limit plate by bolts near the pulleys at both ends, and a pair of process holes are opened at the adjacent ends of the two limit plates, and the two bearing shafts pass through the process holes, the upper surface of the bearing plate is opened with a slide groove near both ends, and the lower surface of the pad is welded with a support slider near the middle of both ends, and the support slider and the slide groove are adapted to each other.

[0009] A further arrangement of the present invention is that baffles are welded on adjacent ends of the two limit plates near both sides, a screw rod 1 is screwed on the middle part of one side of the baffle away from the turntable, and a push plate is rotatably connected to the circumferential outer wall of the screw rod 1 near the side of the support block, a positioning rod is inserted in the middle part of one side of the other baffle, and a pad is welded on the end of the positioning rod near the support block, and a support spring is welded on the side of the pad near the positioning rod deviating from the center of the circle.

[0010] A further arrangement of the present invention is that the lifting mechanism includes a loading shaft, a mounting groove is opened at the top of the loading column, and a hanging plate is clamped at the top of the loading column near one side, the inner wall of the mounting groove is rotatably connected to the winding shaft near the top of both sides, and the circumferential outer wall of the winding shaft is connected to a chain belt, the other end of the chain belt and the hanging plate, the inner walls of both sides of the top of the mounting groove are connected to a guide rod at one end away from the hanging plate, and the circumferential outer wall of the guide rod is rotatably connected to a sleeve, the inner walls of both sides of the mounting groove are opened near the middle, and the inner wall of the movable hole is slidably connected to the loading shaft, the circumferential inner wall of the loading shaft is rotatably connected to a toothed disc near the middle, and the toothed disc and the chain belt are meshed.

[0011] A further configuration of the present invention is that a counterweight ring is sleeved and fixed at one end of the circumferential outer wall of the loading shaft away from the turntable, a ratchet is sleeved and fixed at one end of the circumferential outer wall of the winding shaft close to the counterweight ring, and a fixing column is inserted into the outer wall of the loading column close to the ratchet, and a pawl is rotatably connected to the circumferential outer wall of the fixing column, and the pawl and the ratchet match.

[0012] A further arrangement of the present invention is that the changing mechanism includes a changing knot, an end of the circumferential outer wall of the loading shaft away from the counterweight ring is rotatably connected to the changing knot, and a changing hole 1 is opened on the side of the changing knot away from the loading shaft, and a socket is opened on the side of the changing knot close to the loading shaft, and the socket is adapted to the loading shaft, a loading rod is fixed to the bottom of the changing hole 1, and a movable shaft is inserted into the end of the outer wall of both ends of the loading rod away from the loading shaft, and the circumferential outer wall of the movable shaft is rotatably connected to a connecting plate near both ends, the two connecting plates are welded with the same connecting disk on the side away from the loading shaft, and a reset spring is welded on the middle part of the side of the connecting disk away from the connecting plate, and the end of the reset spring away from the connecting plate is connected to a changing column, a reset groove is opened in the middle part of the side of the changing column close to the connecting plate, and the reset groove is adapted to the reset spring, and sliding rods are evenly welded near the circumferential edge of the side of the changing column close to the connecting plate, and the sliding rods pass through the connecting plate.

[0013] A further configuration of the present invention is that a second changing hole is opened at the top of the changing knot near the movable shaft, and an arc groove is opened on the side of the top of the changing knot away from the insertion hole, and the arc groove matches the changing column.

[0014] A further arrangement of the present invention is that a base plate is fixed to the side of the changing column away from the changing knot by bolts, and side plates are welded to the sides of the base plate away from the changing column, one end of one of the side plates is screwed with screw rod 2, and a push plate is sleeved on the side of screw rod 2 close to the other side plate, and a clamping block is fixed to the side of the push plate away from screw rod 2, and another clamping block with the same structure and opposite opening is fixed to the side of the other side plate close to the push plate.

[0015] In summary, the beneficial effects of this solution are:

[0016] 1. By setting the turntable, the direction of clamping the seat frame can be adjusted, and then the welding angle can be changed to ensure the uniformity and quality of the weld, reducing the welder's posture adjustment, reducing the complexity of manual operation, and making the welding process more efficient.

[0017] 2. By setting the chain belt, the height of the loading axis can be changed to adapt the height of the seat frame to the height of the operator, allowing the operator to maintain the best working posture, reducing fatigue and discomfort, and increasing the flexibility of the clamping device.

[0018] 3. By setting screw 1, the push plate pushes the support block, which can fine-tune the position of the pulley and thus change the relative distance of the clamping, so as to adapt to seat frames of different sizes and shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front end structure of a welding clamping and fixing device for an automobile seat frame proposed by the present invention;

[0020] Figure 2 This is a schematic diagram of the working base structure of a welding clamping and fixing device for an automobile seat frame proposed by the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of a load-bearing plate of a welding, clamping, and fixing device for an automobile seat frame proposed by the present invention;

[0022] Figure 4 This is a schematic diagram of the loading column structure of a welding clamping and fixing device for an automobile seat frame proposed by the present invention;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of a loading column of a welding clamping and fixing device for an automobile seat frame proposed by the present invention;

[0024] Figure 6 The invention proposes a welding clamping and fixing device for a car seat frame. Figure 5 Schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 7 This is a schematic diagram of the cross-sectional structure of a deflection junction of a welding clamping and fixing device for an automobile seat frame proposed by the present invention.

[0026] In the figure: 1. working base plate; 101. annular wheel groove; 102. limiting hole; 103. scale groove; 2. limiting rod; 3. bearing plate; 301. translation groove; 302. slide groove; 4. loading column; 401. movable hole; 402. mounting groove; 5. direction-changing knot; 501. direction-changing hole 1; 502. plug-in hole; 503. direction-changing hole 2; 504. arc groove; 6. winding shaft; 7. turntable; 8. pad; 9. roller; 10. support column; 11. wheel axle; 12. block; 13. spring washer; 14. contraction spring; 15. limiting disk; 16. support slider; 17. pulley; 18. pad; 19 , positioning rod; 20, support spring; 21, support block; 22, push plate; 23, screw one; 24, baffle; 25, limit plate; 2501, process hole; 26, clamping block; 27, chain belt; 28, hanging plate; 29, loading shaft; 30, counterweight ring; 31, toothed plate; 32, ratchet; 33, fixed column; 34, pawl; 35, guide rod; 36, sleeve; 37, movable shaft; 38, connecting plate; 39, connecting plate; 40, change direction column; 4001, reset groove; 41, bottom plate; 42, side plate; 43, push plate; 44, screw two; 45, reset spring; 46, slide rod; 47, loading rod. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] In this embodiment, refer to Figure 1-7 A welding clamping and fixing device for a car seat frame includes a working base plate 1, a bearing column is fixed at the center of the upper surface of the working base plate 1, and a turntable 7 is rotatably connected to the outer wall of the bearing column near the top, and a support column 10 is evenly fixed to the lower surface of the turntable 7 near the circumferential edge, and a rectangular plate is welded to the bottom end of the support column 10, and a clamping block 12 is welded to the lower surface of the rectangular plate near both sides, and the bottom ends of the two clamping blocks 12 are clamped to the same wheel shaft 11, and a roller is rotatably connected to the outer wall of the wheel shaft 11 near the middle. Wheel 9, a translation mechanism is installed on the upper surface of the turntable 7 near both sides, and the translation mechanism includes a loading column 4, and a lifting mechanism is installed on the inner wall of the loading column 4, and the lifting mechanism includes a loading shaft 29, and a changing mechanism is installed at one end of the loading shaft 29 near the middle of the turntable 7, and the changing mechanism includes a changing knot 5; by rotating the turntable 7, the direction of clamping the seat frame can be adjusted, and the welding angle can be adjusted to ensure the uniformity and welding quality of the weld, which reduces the welder's posture adjustment, reduces the complexity of manual operation, and makes the welding process more efficient.

[0029] refer to Figure 2, an annular wheel groove 101 is opened on the upper surface of the working base plate 1 near the bottom end of the roller 9, and the annular wheel groove 101 is adapted to the roller 9, a spring washer 13 is fixed to the upper surface of the turntable 7 near the circumferential edge by bolts, and a contraction spring 14 is welded on the upper surface of the spring washer 13 at a position deviating from the center of the circle, and a limit plate 15 is welded to the top of the contraction spring 14, and the limit rod 2 is fixed by bolts at the center of the lower surface of the limit plate 15, and the limit rod 2 passes through the turntable 7, and limiting holes 102 are evenly opened on the outer periphery of the annular wheel groove 101 on the upper surface of the working base plate 1, and the limiting holes 102 are adapted to the limiting rod 2, and a scale groove 103 is opened on the upper surface of the working base plate 1 near the outer periphery of the limiting hole 102, and the scale groove 103 matches the limiting hole 102; by comparing the scale groove 103 and changing the connection position of the limiting hole 102 and the limiting rod 2, the rotation angle can be accurately controlled to ensure the quality of welding.

[0030] refer to Figure 1 、 Figure 3 The translation mechanism includes a bearing plate 3, and the bearing plates 3 are installed on the upper surface of the turntable 7 near both sides, and a translation groove 301 is opened on the upper surface of the bearing plate 3 near the middle, and a pair of pulleys 17 are placed at the bottom of the translation groove 301 near the inner wall at both ends, and the adjacent ends of the two pairs of pulleys 17 are rotatably connected with the bearing shaft, and the circumferential inner walls of the two bearing shafts are rotatably connected with the support blocks 21 near the middle, and the tops of the two support blocks 21 are fixed with the same pad 8 by bolts, and the upper surface of the pad 8 is welded with a loading column 4, and the bottom of the translation groove 301 is fixed with a limit plate 25 by bolts near the pulleys 17 at both ends, and a pair of process holes 2501 are opened at the adjacent ends of the two limit plates 25, and the two bearing shafts pass through the process holes 2501; the process holes 2501 can limit the range of movement of the pulley 17 to ensure that it is maintained within a safe range and prevented from escaping from the bearing Carrying plate 3; There are sliding grooves 302 on the upper surface of the carrying plate 3 near both ends, and supporting sliders 16 are welded on the lower surface of the pad 8 near the middle of both ends, and the supporting slider 16 and the sliding groove 302 are adapted to each other, and baffles 24 are welded on the adjacent ends of the two limit plates 25 near both sides, and a screw 23 is screwed on the middle part of one side of the baffle 24 away from the turntable 7, and the circumferential outer wall of the screw 23 is rotatably connected to the side of the support block 21 with a push plate 22, and a positioning rod 19 is inserted in the middle part of one side of the other baffle 24, and a pad 18 is welded on the end of the positioning rod 19 close to the support block 21, and a support spring 20 is welded on the side of the pad 18 close to the positioning rod 19, which deviates from the center of the circle; rotating screw 23 causes the push plate 22 to push the support block 21, which can fine-tune the position of the pulley 17, thereby changing the clamping distance, and can adapt to seat frames of different sizes and shapes.

[0031] refer to Figure 1 、 Figure 4 、 Figure 5 、 Figure 6The lifting mechanism includes a loading shaft 29, a mounting groove 402 is opened at the top of the loading column 4, and a hanging plate 28 is clamped at the top of the loading column 4 near one side, and the inner wall of the mounting groove 402 is rotatably connected to the winding shaft 6 near the top of both sides, and the circumferential outer wall of the winding shaft 6 is connected to the chain belt 27, the other end of the chain belt 27 and the hanging plate 28, and the inner walls of both sides of the top of the mounting groove 402 are away from the end of the hanging plate 28. A guide rod 35 is inserted, and the circumferential outer wall of the guide rod 35 is rotatably connected to the sleeve 36; the chain belt 27 is made to bypass the sleeve 36 to ensure the verticality of the chain belt 27 and the loading shaft 29 to avoid angles and extra work; the inner walls of both sides of the mounting groove 402 are opened near the middle with movable holes 401, and the inner wall of the movable hole 401 is slidably connected to the loading shaft 2 9. The circumferential inner wall of the loading shaft 29 is rotatably connected to a toothed disc 31 near the middle, and the toothed disc 31 is meshed with the chain belt 27. The circumferential outer wall of the loading shaft 29 is sleeved and fixed at one end away from the turntable 7. The circumferential outer wall of the winding shaft 6 is sleeved and fixed at one end near the counterweight ring 30, and the outer wall of the loading column 4 on one side near the ratchet 32 ​​is inserted with a fixing column 33 near the ratchet 32. The circumferential outer wall of the fixing column 33 is rotatably connected to a pawl 34, and the pawl 34 and the ratchet 32 ​​are matched. The height of the loading shaft 29 can be changed by winding the chain belt 27 to make the height of the seat frame adapt to the height of the operator, allowing the operator to maintain an optimal working posture, reduce fatigue and discomfort, and increase the flexibility of the clamping device.

[0032] refer to Figure 4 、 Figure 7The changing mechanism includes a changing knot 5, an end of the circumferential outer wall of the loading shaft 29 away from the counterweight ring 30 is rotatably connected to the changing knot 5, and a changing hole 501 is opened on the side of the changing knot 5 away from the loading shaft 29, and a socket 502 is opened on the side of the changing knot 5 close to the loading shaft 29, and the socket 502 is adapted to the loading shaft 29, and a loading rod 47 is fixed to the bottom of the changing hole 501, and a movable shaft 37 is inserted into the end of the outer wall of both ends of the loading rod 47 away from the loading shaft 29, and the circumferential outer wall of the movable shaft 37 is rotatably connected to the connecting plate 38 near both ends, and the two connecting plates 38 are welded with the same connecting disk 39 on the side away from the loading shaft 29, and a reset spring 45 is welded in the middle of the side of the connecting disk 39 away from the connecting plate 38, and the reset spring 45 is away from One end of the connecting plate 38 is connected to a changing column 40, and a reset groove 4001 is provided in the middle of the side of the changing column 40 close to the connecting plate 38, and the reset groove 4001 is adapted to the reset spring 45, and a sliding rod 46 is evenly welded on the side of the changing column 40 close to the connecting plate 38 near the circumferential edge, and the sliding rod 46 passes through the connecting plate 38, and a changing hole 2 503 is provided at the top of the changing knot 5 near the movable shaft 37, and an arc groove 504 is provided on the side of the top of the changing knot 5 away from the socket 502, and the arc groove 504 matches the changing column 40; by setting the changing hole 1 501 and the changing hole 2 503, the direction of the changing column 40 can be changed, and it can adapt to more and more complex seat frames, thereby improving the scope of application of the equipment and increasing the clamping and fixing methods.

[0033] refer to Figure 7 The side of the changing column 40 away from the changing knot 5 is fixed with a base plate 41 by bolts, and the side of the bottom plate 41 away from the changing column 40 is welded with side plates 42 near both ends, one end of one side plate 42 is screwed with a screw rod 24, and the side of the screw rod 24 close to the other side plate 42 is sleeved with a push plate 43, and the side of the push plate 43 away from the screw rod 24 is fixed with a clamping block 26, and the side of the other side plate 42 close to the push plate 43 is fixed with another clamping block 26 with the same structure and opposite openings; by providing two clamping blocks 26 with opposite openings, the clamping area between the clamping block 26 and the seat frame is increased, the friction force is improved, the clamping is made more stable, sliding is avoided, and the welding safety is improved.

[0034] When the present invention is in use: first, according to the shape of the seat frame, a clamping method is selected, one is horizontal clamping, keeping the changing column 40 in a horizontal state, and the other is vertical clamping, pulling out the changing column 40, rotating the changing column 40 along the arc groove 504 to the changing hole 2 503, sending the changing column 40 away, and under the action of the reset spring 45, the changing column 40 falls to the bottom and is fixed, and then according to the size of the seat frame, the screw 1 23 is rotated to adjust the distance between the two loading columns 4 to ensure that the clamping block 26 can clamp the seat frame; then according to the height of the operator, the winding shaft 6 is rotated, the chain belt 27 is wound or released, and the height of the loading shaft 29 is adjusted to suit the height of the seat frame to the operator; when welding, the limit plate 15 can be lifted and the turntable 7 can be rotated to change the welding angle of the seat frame accordingly, thereby improving the welding accuracy.

[0035] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A welding clamping and fixing device for an automobile seat frame, comprising a working base plate (1), characterized in that: A bearing column is inserted and fixed at the center of the upper surface of the working base plate (1), and a turntable (7) is rotatably connected to the outer circumferential wall of the bearing column near the top. A support column (10) is evenly inserted and fixed to the lower surface of the turntable (7) near the circumferential edge, and a rectangular plate is welded to the bottom end of the support column (10). Blocks (12) are welded to the lower surface of the rectangular plate near both sides, and the bottom ends of the two blocks (12) are clamped to the same wheel shaft (11). The outer circumferential wall of the wheel shaft (11) is rotatably connected to a roller (9). A translation mechanism is installed near both sides of the upper surface of the turntable (7), and the translation mechanism includes a loading column (4). A lifting mechanism is installed on the inner wall of the loading column (4), and the lifting mechanism includes a loading shaft (29). A direction-changing mechanism is installed at one end of the loading shaft (29) near the middle of the turntable (7), and the direction-changing mechanism includes a direction-changing knot (5). The mechanism includes a loading shaft (29), a top end of the loading column (4) is provided with a mounting groove (402), and a hanging plate (28) is clamped on one side of the top end of the loading column (4), the inner wall of the mounting groove (402) is rotatably connected to the top end of both sides of the winding shaft (6), and the outer wall of the circumference of the winding shaft (6) is connected to a chain belt (27), the other end of the chain belt (27) is connected to the hanging plate (28), and the inner walls of both sides of the top end of the mounting groove (402) are far away from the top end. A guide rod (35) is inserted into one end of the hanging plate (28), and the outer circumferential wall of the guide rod (35) is rotatably connected to a sleeve (36), and movable holes (401) are opened near the middle of the inner walls of both sides of the mounting groove (402), and the inner walls of the movable holes (401) are slidably connected to the loading shaft (29), and the inner circumferential wall of the loading shaft (29) is rotatably connected to the toothed disc (31) near the middle, and the toothed disc (31) and the chain belt (27) are meshed; The end of the circumferential outer wall of the loading shaft (29) away from the counterweight ring (30) is rotatably connected to a change knot (5), and a change hole (501) is opened on the side of the change knot (5) away from the loading shaft (29), and a socket (502) is opened on the side of the change knot (5) close to the loading shaft (29), and the socket (502) is adapted to the loading shaft (29), a loading rod (47) is fixed to the bottom of the hole (501), and the ends of the outer walls of both ends of the loading rod (47) away from the loading shaft (29) are plugged with a movable shaft (37), and the circumferential outer wall of the movable shaft (37) is rotatably connected to a connecting plate (38) near both ends, and the two plates are fixed to the bottom of the change hole (501). The connecting plate (38) is welded with a same connecting disk (39) on the side away from the loading shaft (29), and a reset spring (45) is welded to the middle of the side of the connecting disk (39) away from the connecting plate (38), and the end of the reset spring (45) away from the connecting plate (38) is connected to the direction-changing column (40), and a reset groove (4001) is opened in the middle of the side of the direction-changing column (40) close to the connecting plate (38), and the reset groove (4001) and the reset spring (45) are adapted to each other, and a sliding rod (46) is uniformly welded to the side of the direction-changing column (40) close to the connecting plate (38) near the circumferential edge, and the sliding rod (46) passes through the connecting plate (38); The top of the direction-changing knot (5) is provided with a second direction-changing hole (503) near the movable shaft (37), and the top of the direction-changing knot (5) is provided with an arc-shaped groove (504) on a side away from the insertion hole (502), and the arc-shaped groove (504) matches the direction-changing column (40); The side of the direction-changing column (40) away from the direction-changing knot (5) is fixed with a bottom plate (41) by bolts, and the side of the bottom plate (41) away from the direction-changing column (40) is welded with side plates (42) near both ends, one end of one side plate (42) is screwed with screw rod 2 (44), and the side of screw rod 2 (44) close to the other side plate (42) is sleeved with a push plate (43), and the side of the push plate (43) away from screw rod 2 (44) is fixed with a clamping block (26), and the side of the other side plate (42) close to the push plate (43) is fixed with another clamping block (26) with the same structure and opposite opening.

2. The automobile seat frame welding clamping and fixing device according to claim 1, characterized in that: An annular wheel groove (101) is formed on the upper surface of the working base plate (1) near the bottom end of the roller (9), and the annular wheel groove (101) is adapted to the roller (9). A spring washer (13) is fixed to one end of the upper surface of the turntable (7) near the circumferential edge by bolts, and a contraction spring (14) is welded on the upper surface of the spring washer (13) at a position deviating from the center of the circle, and a limit plate (15) is welded on the top end of the contraction spring (14), and the limit plate (15) is welded to the upper end of the limit plate (15). A limiting rod (2) is fixed at the center of the lower surface by a bolt, and the limiting rod (2) passes through the turntable (7); the upper surface of the working base plate (1) is evenly provided with limiting holes (102) near the periphery of the annular wheel groove (101), and the limiting holes (102) and the limiting rod (2) are adapted to each other; the upper surface of the working base plate (1) is provided with a scale groove (103) near the periphery of the limiting hole (102), and the scale groove (103) and the limiting hole (102) are matched.

3. The automobile seat frame welding clamping and fixing device according to claim 1, characterized in that: The translation mechanism comprises a bearing plate (3), the bearing plates (3) are installed on the upper surface of the turntable (7) near both sides, and a translation groove (301) is opened near the middle of the upper surface of the bearing plate (3), and a pair of pulleys (17) are placed at the bottom of the translation groove (301) near the inner walls of both ends, the adjacent ends of the two pairs of pulleys (17) are rotatably connected to the bearing shaft, and the circumferential inner walls of the two bearing shafts are rotatably connected to the support blocks (21) near the middle, the top ends of the two support blocks (21) are fixed with the same pad (8) by bolts, and the upper surface of the pad (8) is welded with a loading column (4).

4. The automobile seat frame welding clamping and fixing device according to claim 3, characterized in that: The bottom of the translation groove (301) is fixed with a limit plate (25) by bolts near the pulleys (17) at both ends, and a pair of process holes (2501) are opened at adjacent ends of the two limit plates (25), and the two bearing shafts pass through the process holes (2501). The upper surface of the bearing plate (3) is provided with a slide groove (302) near both ends, and the lower surface of the pad (8) is welded with a support slider (16) near the middle of both ends, and the support slider (16) and the slide groove (302) are adapted to each other.

5. The automobile seat frame welding clamping and fixing device according to claim 4, characterized in that: Baffles (24) are welded to adjacent ends of the two limit plates (25) near both sides, a screw rod (23) is screwed to the middle of one side of the baffle (24) away from the turntable (7), and a push plate (22) is rotatably connected to the circumferential outer wall of the screw rod (23) near the side of the support block (21), a positioning rod (19) is inserted into the middle of one side of the other baffle (24), and a pad (18) is welded to the end of the positioning rod (19) near the support block (21), and a support spring (20) is welded to the side of the pad (18) near the positioning rod (19) deviating from the center of the circle.

6. The automobile seat frame welding clamping and fixing device according to claim 1, characterized in that: A counterweight ring (30) is sleeved and fixed at one end of the circumferential outer wall of the loading shaft (29) away from the turntable (7), a ratchet (32) is sleeved and fixed at one end of the circumferential outer wall of the winding shaft (6) close to the counterweight ring (30), and a fixing column (33) is inserted into the outer wall of one side of the loading column (4) close to the ratchet (32), and a pawl (34) is rotatably connected to the circumferential outer wall of the fixing column (33), and the pawl (34) and the ratchet (32) match.

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