Welding auxiliary device for automobile part production and machining

Abstract

The invention relates to the technical field of automobile manufacturing welding, and discloses an auxiliary welding device for automobile part production and machining, the auxiliary welding device comprises an auxiliary welding mechanism, the auxiliary welding mechanism comprises a movable base, a rotating mechanism, a matrix inserting table and a clamping mechanism, the movable base transversely moves on a ground rail, and the rotating mechanism longitudinally moves on the movable base; the matrix inserting table is arranged on the rotating mechanism, the multiple clamping mechanisms are distributed and installed on the matrix inserting table according to the appearance of the automobile part, the adjusting mechanism is arranged between the rotating mechanism and the matrix inserting table and comprises multiple pressure bearing devices and drivers, and the swing angle of the matrix inserting table is adjusted through the multiple drivers. The pressure bearing device balances pressure distribution of the matrix inserting table to the rotating mechanism when the matrix inserting table swings, multi-angle adjustment of automobile accessories after clamping is achieved, the automobile accessory clamping device can be matched with a welding robot to conduct auxiliary welding, the welding space is expanded, and the welding side can be rapidly replaced through rotating action.

Description

Technical Field

[0001] The invention relates to the technical field of automobile manufacturing welding, and in particular to a welding auxiliary device for the production and processing of automobile parts. Background Art

[0002] Auto parts refer to various parts and components required for the manufacture, repair or maintenance of automobiles. The automobile frame structure includes side panels, front panels, rear panels, and base. Large components are manufactured by integral die-casting and then combined with small components by welding, riveting, bolting, etc. The existing automobile manufacturing welding production line has various types of welding robots, fixtures and positioning devices, conveying devices, post-processing devices, etc. Through multi-step welding, various accessories are combined to form a frame structure. The existing accessory fixtures can only realize the clamping function, fixing the accessories in the welding area, and the welding robot performs multi-angle and multi-point welding. After welding on one side is completed, another robot clamps the accessories and rotates the angle, and then welds the other side, or two robots are arranged on both sides of the accessories for welding. This requires at least two robots to cooperate for multi-faceted welding. Considering that some welding points are relatively hidden and the movement of the robot arm is limited, this requires adjusting the angle or completing the welding with the cooperation of the clamping robot and the welding robot, which increases the investment cost. In addition, different accessories usually require different fixtures, which increases the complexity of fixture replacement and is inconvenient to use. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a welding auxiliary device for the production and processing of automobile parts.

[0004] In order to solve the above technical problems, the technical solution provided by the present invention is as follows: a welding auxiliary device for automobile parts production and processing, comprising a welding auxiliary mechanism, a ground rail and a blocker, the welding auxiliary mechanism comprising a mobile base, a rotating mechanism, a matrix inserting platform and a clamping mechanism, the mobile base moves laterally on the ground rail, the rotating mechanism moves longitudinally on the mobile base, the matrix inserting platform is arranged on the rotating mechanism, and the clamping mechanism is installed on the matrix inserting platform; An adjustment mechanism is provided between the rotating mechanism and the matrix plug-in table, the adjustment mechanism includes multiple pressure bearings and a driver, the rotating mechanism includes a round table, a turntable is rotatably provided on the round table, a ball table is provided in the center of the top of the round table, a supporting bracket and a ball slot table are provided at the bottom of the matrix plug-in table, the supporting bracket connects the matrix plug-in table and the ball slot table, the ball table rotates with the ball slot inside the ball slot table, the pressure bearing and the driver connect the turntable and the supporting bracket.

[0005] As an improvement: the pressure bearer includes a rotating plate, a movable plate and a connecting platform. The rotating platform is provided with a connecting plate hinged to the rotating plate. A sliding rod is provided on the rear side of the movable plate. The sliding rod slides in cooperation with the through hole on the rotating plate. A spring 1 is provided on the outer side of the sliding rod. Both ends of the spring 1 connect the rotating plate and the movable plate. The connecting platform is hinged to the movable plate. A crossbeam is provided on the supporting frame. The connecting platform rotates and slides in cooperation with the crossbeam to bear and disperse the gravity of the matrix plug-in platform through the pressure bearer.

[0006] As an improvement: the driver includes hydraulic cylinder 2, and the two ends of hydraulic cylinder 2 are respectively hinged with swivel block 1 and swivel block 2. Swivel block 1 is rotatably arranged on the turntable, and a table section is provided on the supporting bracket. Swivel block 2 is rotatably arranged at the bottom of the table section. The angle adjustment of the matrix plug-in table is achieved through the driver.

[0007] As an improvement: the clamping mechanism includes a fixed platform and a top plate, the fixed platform is placed at the slot at the top of the matrix socket, and threaded columns are provided at the bottom corners of the top plate, which pass through the side through holes of the fixed platform and the fixing holes around the slots. The fixed platform is fixed to the matrix socket by nuts and the distance between the top plate and the fixed platform can be adjusted. A cylinder is provided on the inner side of the fixed platform, and a push platform is provided at the output end of the cylinder through the through hole at the top of the fixed platform. An angle bracket is provided on one side of the push platform, and a push wheel is rotatably provided at the end of the angle bracket. A clamping claw is hinged on one side of the top plate, and a pressing platform is hinged on the end of the clamping claw. The clamping claw is connected to the top plate with a torsion spring, and an inclined plate cooperating with the push wheel is provided at the bottom of the clamping claw. Adjustable clamping of automotive accessories is achieved through the clamping mechanism.

[0008] As an improvement: a groove platform is provided at the bottom of the top plate, a sliding column is provided inside the groove platform for sliding, a support plate is hinged on the top of the sliding column, the pressing platform and the support plate cooperate to clamp the auto parts, a spring two connected to the groove platform is provided on the outer side of the bottom of the sliding column, a push column is provided on one side of the push platform, the push column passes through the through hole at the bottom of the groove platform and cooperates with the sliding column, thereby realizing lifting during clamping and increasing the welding space.

[0009] As an improvement: a second motor and a gear set are provided on the inner side of the truncated table, a gear is provided on the output end of the second motor, the gear is meshed with the gear set, a gear ring is provided on the inner side of the turntable, the gear set is meshed with the gear ring, and the rotation of the turntable is realized.

[0010] As an improvement: the mobile base includes a mobile table, a mobile frame is provided at the bottom of the circular table, the mobile frame moves on the mobile table through the bottom rollers, a hydraulic cylinder is provided on the mobile table to push the mobile frame, a track wheel that cooperates with the ground rail is provided at the bottom of the mobile table for rotation, a motor, a gear box and a driving wheel are provided on the front side of the mobile table, the output end of the motor is connected to the gear box, and the gear box drives the driving wheel to rotate, thereby realizing the movement of the mobile base and enabling the automotive parts to be smoothly transferred to each welding area.

[0011] As an improvement: the blocker includes a mounting seat, a hydraulic cylinder three is provided on the mounting seat, a baffle is slidably provided at the front end of the mounting seat, the hydraulic cylinder three pushes the baffle to move, and a limit plate one cooperating with the baffle is provided on both sides of the bottom of the moving platform.

[0012] Compared with the prior art, the invention has the following beneficial effects: the device realizes multi-angle adjustment of auto parts after clamping, can cooperate with welding robots for auxiliary welding, expands welding space, and exposes welding points on one side of the parts. At the same time, through the rotation action, the welding side can be quickly replaced to improve welding efficiency. Specifically: 1. The connection between the turntable and the matrix insert is achieved by the pressure bearing and the driver, so that the matrix insert can be adjusted at multiple angles with the ball table as the rotation center. The weight of the matrix insert and accessories is dispersed and transferred to the turntable by the pressure bearing, making the rotation more stable. 2. The matrix insert table and the clamping mechanism are combined to make the clamping points able to be replaced according to the shape of the accessories. There is no need to replace the clamping platform as a whole, which is more convenient. The fixed table and the top plate are separated to meet the clamping action of clamping points at different heights. 3. The transfer of auto parts in different welding areas is realized through the cooperation of the mobile base, the rotating mechanism, the ground rail and the blocker. The lateral movement of the rotating mechanism can prevent the auto parts from colliding with the workshop and the robot when turning. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The present invention is a structural schematic diagram of a welding auxiliary device for producing and processing automobile parts.

[0014] Figure 2 The present invention is a structural schematic diagram of a welding auxiliary mechanism of a welding auxiliary device for producing and processing automobile parts.

[0015] Figure 3 The invention discloses an exploded view of a welding auxiliary mechanism of a welding auxiliary device for producing and processing automobile parts.

[0016] Figure 4 This is a schematic diagram of the structure of a movable base of a welding auxiliary device for automobile parts production and processing of the present invention. Figure 1 .

[0017] Figure 5 This is a schematic diagram of the structure of a movable base of a welding auxiliary device for automobile parts production and processing of the present invention. Figure 2 .

[0018] Figure 6 The invention discloses a structural schematic diagram of a rotating mechanism of a welding auxiliary device for producing and processing automobile parts.

[0019] Figure 7The utility model is a partial structural schematic diagram of a rotating mechanism of a welding auxiliary device for producing and processing automobile parts of the present invention.

[0020] Figure 8 The present invention is a structural schematic diagram of a pressure bearing device of a welding auxiliary device for producing and processing automobile parts.

[0021] Fig. 9 The present invention is a structural schematic diagram of a welding auxiliary device driver for the production and processing of automobile parts.

[0022] Fig.10 The present invention is a structural schematic diagram of a matrix inserting platform of a welding auxiliary device for producing and processing automobile parts.

[0023] Fig.11 The present invention is a structural schematic diagram of a clamping mechanism of a welding auxiliary device for producing and processing automobile parts.

[0024] Fig.12 The present invention is a cross-sectional view of a clamping mechanism of a welding auxiliary device for producing and processing automobile parts.

[0025] Fig.13 The present invention is a schematic structural diagram of a blocking device for a welding auxiliary device used in the production and processing of automobile parts.

[0026] As shown in the figure: 1. Welding auxiliary mechanism; 2. Moving base; 3. Rotating mechanism; 4. Adjusting mechanism; 5. Matrix insert; 6. Clamping mechanism; 7. Ground rail; 8. Blocker; 21. Moving platform; 22. Motor 1; 23. Gear box; 24. Driving wheel; 25. Track wheel; 26. Hydraulic cylinder 1; 27. Side plate; 28. Limiting plate 1; 31. Round table; 32. Moving frame; 33. Limiting plate 2; 34. Turntable; 341. Gear ring; 35. Ball table; 36. Motor 2; 361. Gear; 37. Gear set; 38. Connecting plate; 41. Pressure bearing; 411. Turntable; 412. Movable plate; 413. Sliding rod; 414. Spring 1; 415. Connecting platform; 42. Driver; 421. Hydraulic cylinder 2; 422. Turn block 1; 423. Turn block 2; 51. Support bracket; 52. Ball slot platform; 53. Crossbeam; 54. Platform section; 55. Slot; 56. Fixing hole; 61. Fixing platform; 62. Cylinder; 63. Push platform; 631. Push column; 632. Angle bracket; 633. Push wheel; 64. Top plate; 641. Slot platform; 642. Torsion spring; 643. Threaded column; 65. Butt plate; 66. Sliding column; 67. Spring 2; 68. Clamp; 681. Inclined plate; 69. Press platform; 81. Mounting seat; 82. Hydraulic cylinder 3; 83. Baffle. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0028] Combined with Figure 1 , Attachment Figure 2 and attached Figure 3 As shown, a welding auxiliary device for the production and processing of automobile parts includes a welding auxiliary mechanism 1, a ground rail 7 and a blocker 8. The welding auxiliary mechanism 1 includes a movable base 2, a rotating mechanism 3, a matrix plug-in table 5 and a clamping mechanism 6. The movable base 2 moves laterally on the ground rail 7, and the rotating mechanism 3 moves longitudinally on the movable base 2. The matrix plug-in table 5 is arranged on the rotating mechanism 3. A plurality of clamping mechanisms 6 are installed on the matrix plug-in table 5 according to the appearance distribution of the automobile parts. An adjusting mechanism 4 is provided between the rotating mechanism 3 and the matrix plug-in table 5. The adjusting mechanism 4 includes a plurality of pressure bearings 41 and a driver 42. The swing angle of the matrix plug-in table 5 is adjusted by the plurality of drivers 42. The pressure distribution of the matrix plug-in table 5 on the rotating mechanism 3 is balanced by the pressure bearings 41 when the matrix plug-in table 5 swings.

[0029] Combined with Figure 6 , Attachment Figure 7 and attached Fig.10 As shown, the rotating mechanism 3 includes a truncated table 31, on which a turntable 34 is rotatably provided. A motor 36 and a gear set 37 are provided on the inner side of the truncated table 31. A gear 361 is provided at the output end of the motor 36, which meshes with the gear set 37. A gear ring 341 is provided on the inner side of the turntable 34, which meshes with the gear ring 341. A ball table 35 is provided at the top center of the truncated table 31, and a supporting bracket 51 and a ball groove table 52 are provided at the bottom of the matrix insert table 5. The supporting bracket 51 connects the matrix insert table 5 and the ball groove table 52, and the ball table 35 rotatably cooperates with the ball groove inside the ball groove table 52. The pressure bearing 41 and the driver 42 connect the turntable 34 and the supporting bracket 51.

[0030] Working principle of rotating mechanism 3: Motor 2 36 drives gear 361 to rotate, and gear 361 meshes with gear set 37 for transmission, and gear set 37 meshes with gear ring 341 for transmission, thereby driving turntable 34 to rotate on truncated table 31, so that pressure-bearing device 41 and driver 42 on turntable 34 drive matrix platform 5 to rotate, and through the cooperation between ball table 35 and ball groove table 52, and the support of multiple pressure-bearing devices 41 for matrix platform 5, when matrix platform 5 is swung through multiple drivers 42, the angle can be adjusted with ball table 35 as the center.

[0031] Combined with Figure 6 , Attachment Figure 7 , Attachment Figure 8 , Attachment Fig. 9 and attached Fig.10As shown, the pressure bearer 41 includes a rotating plate 411, a movable plate 412 and a connecting platform 415. A connecting plate 38 hinged to the rotating plate 411 is provided on the rotating platform 34. A sliding rod 413 is provided on the rear side of the movable plate 412. The sliding rod 413 slides in cooperation with the through hole on the rotating plate 411. A spring 414 is provided on the outer side of the sliding rod 413. Both ends of the spring 414 connect the rotating plate 411 and the movable plate 412. The connecting platform 415 is hinged to the movable plate 412. A crossbeam 53 is provided on the supporting frame 51. The connecting platform 415 rotates and slides with the crossbeam 53. The driver 42 includes a hydraulic cylinder 421. A rotating block 422 and a rotating block 423 are hinged at both ends of the hydraulic cylinder 421. The rotating block 422 is rotatably arranged on the rotating platform 34. A platform section 54 is provided on the supporting frame 51. The rotating block 423 is rotatably arranged at the bottom of the platform section 54.

[0032] Working principle of the pressure bearing device 41 and the driver 42: the hydraulic cylinder 421 pushes the stage section 54 on the supporting bracket 51 through the rotating block 423 to adjust the height, and the angle of the matrix platform 5 is adjusted by adjusting the height of multiple stage sections 54. The rotating blocks 1 422 and 2 423 hinged at both ends of the hydraulic cylinder 421 enable the hydraulic cylinder 421 to automatically adjust the angle to adapt to the change of the angle of the matrix platform 5. The pressure bearing device 41 enables the connecting platform 415 to support the crossbeam 53 through the spring 1 414. When the angle of the matrix platform 5 changes, the connecting platform 415 rotates or slides with the crossbeam 53, and the crossbeam 53 drives the connecting platform 415 to rotate on the movable plate 412, and drives the movable plate 412 to swing through the rotating plate 411. The movable plate 412 is adjusted to have a distance with the rotating plate 411 through the sliding rod 413 and the spring 1 414, so that the pressure bearing device 41 can adapt to the angle adjustment of the matrix platform 5 while supporting the matrix platform 5.

[0033] Combined with Figure 2 , Attachment Fig.10 , Attachment Fig.11 and attached Fig.12 As shown, the clamping mechanism 6 includes a fixed platform 61 and a top plate 64. The fixed platform 61 is placed at the top slot 55 of the matrix inserting platform 5. A threaded column 643 is provided at the bottom corner of the top plate 64. The threaded column 643 passes through the side through hole of the fixed platform 61 and the fixing holes 56 around the slot 55. The fixed platform 61 is fixed on the matrix inserting platform 5 by a nut and the distance between the top plate 64 and the fixed platform 61 is adjusted. A cylinder 62 is provided on the inner side of the fixed platform 61. The output end of the cylinder 62 passes through the top through hole of the fixed platform 61 and is provided with a push platform 63. One side of the push platform 63 is provided with an angle frame 632. The end of the angle frame 632 is rotatably provided with a push wheel 633. One side of the top plate 64 is hingedly provided with a clamping claw 68. The end of the clamping claw 68 is hingedly provided with a pressing platform 69. The clamping claw 68 is connected to the top plate 64 with a torsion spring 642. The bottom of the clamping claw 68 is provided with an inclined plate 681 that cooperates with the push wheel 633.

[0034] Working principle 1 of the clamping mechanism 6: According to the appearance of the automobile parts, select the appropriate slot 55 to install the clamping mechanism 6, insert the bottom of the fixing platform 61 into the slot 55, and the side through hole of the fixing platform 61 corresponds to the fixing hole 56. By selecting different fixing holes 56, the angle of the clamping mechanism 6 after fixing is changed, and then the threaded column 643 at the bottom of the top plate 64 is inserted into the side through hole and the fixing hole 56 of the fixing platform 61. According to the size of the automobile parts and the work space of the spot welding robot, the distance between the top plate 64 and the matrix inserting platform 5 is adjusted. Then, nuts are used to clamp the fixing platform 61 and the matrix inserting platform 5, the fixing platform 61 is fixed on the matrix inserting platform 5 and the position of the top plate 64 is fixed, and the automobile parts are placed on the top plate 64 of the multiple clamping mechanisms 6. Then, the cylinder 62 pushes the pushing platform 63 to rise, and the pushing wheel 633 on the angle frame 632 continues to rise after contacting the inclined plate 681, and the pushing wheel 633 pushes the clamping claw 68 to rotate, so that the pressing platform 69 presses the automobile parts on the top plate 64 to complete the clamping action. When resetting, the clamping claw 68 is reset by the torsion spring 642.

[0035] Combined with Fig.12 As shown, a groove platform 641 is provided at the bottom of the top plate 64, a sliding column 66 is slidably provided in the groove platform 641, a support plate 65 is hingedly provided on the top of the sliding column 66, a pressing platform 69 cooperates with the support plate 65 to clamp the automobile parts, a spring 67 connected to the groove platform 641 is provided on the outer side of the bottom of the sliding column 66, and a push column 631 is provided on one side of the push platform 63, and the push column 631 passes through the through hole at the bottom of the groove platform 641 and cooperates with the sliding column 66.

[0036] Working principle 2 of the clamping mechanism 6: When the push platform 63 rises, the push column 631 passes through the through hole at the bottom of the groove platform 641 to push the slide column 66 to rise, so that the slide column 66 pushes the abutment plate 65 to rise, and multiple abutment plates 65 push the automobile parts to rise and leave the top plate 64. The abutment plates 65 cooperate with the pressing platform 69 to achieve multi-point clamping of the automobile parts, leaving spot welding space near the clamping points of the automobile parts.

[0037] Combined with Figure 1 , Attachment Figure 4 , Attachment Figure 5 and attached Figure 6 As shown, the mobile base 2 includes a mobile platform 21, a mobile frame 32 is provided at the bottom of the round table 31, the mobile frame 32 moves on the mobile platform 21 through the bottom rollers, the mobile platform 21 is provided with a hydraulic cylinder 26 for pushing the mobile frame 32, a side of the mobile platform 21 is provided with a side plate 27 connected to the hydraulic cylinder 26, a side of the mobile frame 32 is provided with a limit plate 23, a track wheel 25 that cooperates with the ground rail 7 is rotatably provided at the bottom of the mobile platform 21, a motor 22, a gear box 23 and a driving wheel 24 are provided on the front side of the mobile platform 21, the output end of the motor 22 is connected to the gear box 23, and the gear box 23 drives the driving wheel 24 to rotate.

[0038] Working principle of mobile base 2: motor 22 drives driving wheel 24 to rotate through gear box 23, cooperates with multiple track wheels 25 to make mobile base 2 move on ground rail 7, hydraulic cylinder 26 pushes mobile frame 32 to move on mobile platform 21 through limit plate 23, when welding auto parts, move to different welding robots through mobile base 2 for welding, after welding on one side, hydraulic cylinder 26 pushes rotating mechanism 3 away from robot, gives adjustment space for robot arm and rotation space for auto parts, after rotation of auto parts is completed, hydraulic cylinder 26 drives rotating mechanism 3 close to robot for welding on the other side.

[0039] Combined with Figure 1 , Attachment Figure 5 and attached Fig.13 As shown, the blocker 8 includes a mounting seat 81, on which a hydraulic cylinder 3 82 is provided, a baffle 83 is slidably provided at the front end of the mounting seat 81, the hydraulic cylinder 3 82 pushes the baffle 83 to move, and limit plates 28 cooperating with the baffle 83 are provided on both sides of the bottom of the moving platform 21.

[0040] Working principle of the blocker 8: In order to ensure the accuracy of the moving base 2 moving to the welding position, the moving base 2 slows down when it approaches the welding position, and the hydraulic cylinder 3 82 pushes the baffle 83 to extend out of the front end of the mounting seat 81. The limit plate 1 28 of the moving base 2 brakes after contacting the baffle 83, so that the moving base 2 stops accurately at the welding position.

[0041] When the present invention is implemented, according to the automobile parts that need to be welded, multiple clamping mechanisms 6 are installed in advance to the appropriate positions of the matrix platform 5, and then the automobile parts are placed on the top plate 64, and then the automobile parts are clamped by the clamping mechanism 6, and then moved to the welding position by the movable base 2, and the position of the movable base 2 is limited by the blocker 8, and then the angle of the matrix platform 5 is changed by the adjustment mechanism 4, so that it is convenient for the welding robot to perform multi-angle welding. After the welding of one side of the automobile parts is completed, the rotating mechanism 3 is away from the welding robot, and the matrix platform 5 is driven to rotate by the turntable 34 to make the other side close to the welding robot. After the rotation is completed, the rotating mechanism 3 is close to the welding robot to perform welding on the other side. After the welding is completed, the blocker 8 is reset, and the movable base 2 is moved to another welding position to complete various welding processes such as seam welding and spot welding.

[0042] The present invention and its embodiments are described above, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and do not deviate from the purpose of the invention, they can creatively design a structure and embodiment similar to the technical solution, which should fall within the protection scope of the present invention.

Claims

1. A welding auxiliary device for automobile parts production and processing, comprising a welding auxiliary mechanism (1), a ground rail (7) and a blocker (8), wherein the welding auxiliary mechanism (1) comprises a movable base (2), a rotating mechanism (3), a matrix inserting platform (5) and a clamping mechanism (6), wherein the movable base (2) moves laterally on the ground rail (7), the rotating mechanism (3) moves longitudinally on the movable base (2), the matrix inserting platform (5) is arranged on the rotating mechanism (3), and the clamping mechanism (6) is installed on the matrix inserting platform (5), characterized in that: An adjustment mechanism (4) is provided between the rotating mechanism (3) and the matrix inserting platform (5), the adjustment mechanism (4) comprising a plurality of pressure bearings (41) and a driver (42), the rotating mechanism (3) comprising a round table (31), a turntable (34) being rotatably provided on the round table (31), a ball table (35) being provided at the center of the top of the round table (31), a support bracket (51) and a ball slot table (52) being provided at the bottom of the matrix inserting platform (5), the support bracket (51) connecting the matrix inserting platform (5) and the ball slot table (52), the ball table (35) being rotatably matched with the ball slot inside the ball slot table (52), the pressure bearing (41) and the driver (42) connecting the turntable (34) and the support bracket (51).

2. The welding auxiliary device for automobile parts production and processing according to claim 1 is characterized in that: The pressure bearing device (41) comprises a rotating plate (411), a movable plate (412) and a connecting platform (415); a connecting plate (38) hinged to the rotating plate (411) is provided on the rotating platform (34); a sliding rod (413) is provided on the rear side of the movable plate (412); the sliding rod (413) is slidably matched with a through hole on the rotating plate (411); a spring (414) is provided on the outer side of the sliding rod (413); two ends of the spring (414) connect the rotating plate (411) and the movable plate (412); the connecting platform (415) is hinged to the movable plate (412); a crossbeam (53) is provided on the supporting frame (51); the connecting platform (415) and the crossbeam (53) are rotatable and slidably matched.

3. The welding auxiliary device for automobile parts production and processing according to claim 1 is characterized in that: The driver (42) comprises a second hydraulic cylinder (421), and a first rotating block (422) and a second rotating block (423) are respectively hingedly provided at both ends of the second hydraulic cylinder (421), the first rotating block (422) is rotatably provided on the rotating table (34), a table section (54) is provided on the supporting bracket (51), and the second rotating block (423) is rotatably provided at the bottom of the table section (54).

4. The welding auxiliary device for automobile parts production and processing according to claim 1 is characterized in that: The clamping mechanism (6) comprises a fixing platform (61) and a top plate (64). The fixing platform (61) is placed at the top slot (55) of the matrix inserting platform (5). A threaded column (643) is provided at the bottom corner of the top plate (64). The threaded column (643) passes through the side through hole of the fixing platform (61) and the fixing holes (56) around the slot (55). The fixing platform (61) is fixed to the matrix inserting platform (5) by a nut and the distance between the top plate (64) and the fixing platform (61) is adjusted. The fixing platform (61) is provided with a screw thread on the inner side. A cylinder (62) is provided, the output end of the cylinder (62) passes through a through hole on the top of a fixed platform (61) and is provided with a push platform (63), one side of the push platform (63) is provided with an angle frame (632), the end of the angle frame (632) is rotatably provided with a push wheel (633), one side of a top plate (64) is hingedly provided with a clamping claw (68), the end of the clamping claw (68) is hingedly provided with a pressing platform (69), the clamping claw (68) and the top plate (64) are connected by a torsion spring (642), and the bottom of the clamping claw (68) is provided with an inclined plate (681) that cooperates with the push wheel (633).

5. The welding auxiliary device for automobile parts production and processing according to claim 4 is characterized in that: A groove platform (641) is provided at the bottom of the top plate (64), a sliding column (66) is slidably provided in the groove platform (641), a support plate (65) is hingedly provided at the top of the sliding column (66), a pressing platform (69) cooperates with the support plate (65) to clamp the welded part, a second spring (67) connected to the groove platform (641) is provided at the outer side of the bottom of the sliding column (66), and a push column (631) is provided on one side of the push platform (63), and the push column (631) passes through a through hole at the bottom of the groove platform (641) and cooperates with the sliding column (66).

6. The welding auxiliary device for automobile parts production and processing according to claim 1 is characterized in that: A second motor (36) and a gear set (37) are provided on the inner side of the truncated table (31); a gear (361) is provided on the output end of the second motor (36); the gear (361) meshes with the gear set (37); a gear ring (341) is provided on the inner side of the rotating table (34); the gear set (37) meshes with the gear ring (341).

7. The welding auxiliary device for automobile parts production and processing according to claim 1 is characterized in that: The mobile base (2) comprises a mobile platform (21), a mobile frame (32) is provided at the bottom of the round platform (31), the mobile frame (32) moves on the mobile platform (21) via bottom rollers, a hydraulic cylinder (26) is provided on the mobile platform (21) for pushing the mobile frame (32), a track wheel (25) cooperating with a ground rail (7) is rotatably provided at the bottom of the mobile platform (21), a motor (22), a gear box (23) and a driving wheel (24) are provided at the front side of the mobile platform (21), an output end of the motor (22) is connected to the gear box (23), and the gear box (23) drives the driving wheel (24) to rotate.

8. The welding auxiliary device for automobile parts production and processing according to claim 7 is characterized in that: The blocker (8) comprises a mounting seat (81), a hydraulic cylinder three (82) is provided on the mounting seat (81), a baffle (83) is slidably provided at the front end of the mounting seat (81), the hydraulic cylinder three (82) pushes the baffle (83) to move, and a limit plate one (28) cooperating with the baffle (83) is provided on both sides of the bottom of the movable platform (21).

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