A welding equipment for automobile parts production

Abstract

The application discloses a kind of welding equipment for automobile parts production, and its technical solution points are including positioning mechanism, the positioning mechanism is used to position automobile parts to make the position of the screw rod needed to be welded on automobile parts horizontal and upward;Transmission mechanism, the transmission mechanism is used to transmit positioning mechanism in horizontal direction;Welding mechanism, the welding mechanism is used to screw rod welding on the automobile parts on the positioning mechanism on transmission mechanism;And polishing mechanism, the polishing mechanism is used to polish the welding place of screw rod and automobile parts;Through the setting of welding mechanism and polishing mechanism, screw rod welding on automobile parts can be automatically carried out, the precision and quality of welding are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile parts production, and more particularly, it relates to a welding equipment for automobile parts production. BACKGROUND

[0002] The sheet metal parts of the automobile are an indispensable part in the manufacture and repair of the automobile, which are processed by sheet metal process, and the welding equipment is one of the essential processing equipment in the processing of the sheet metal parts of the automobile.

[0003] In order to connect the sheet metal parts, the connecting position on the sheet metal parts needs to be connected with the screw rod by welding, and then the screw rod is used to connect the sheet metal parts with the sheet metal parts or other parts.

[0004] However, in the prior art, the screw rod is mostly welded by manual welding, which is prone to poor welding precision and quality. SUMMARY

[0005] In view of the deficiencies in the prior art, the purpose of the present application is to provide a welding equipment for automobile parts production, which can automatically weld the screw rod on the automobile parts by setting the welding mechanism and the polishing mechanism, thereby improving the welding precision and quality.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a welding equipment for automobile parts production, comprising a positioning mechanism, the positioning mechanism is used for positioning the automobile parts so that the position of the automobile parts which needs to be welded with the screw rod is horizontal and upward;

[0007] a transmission mechanism, the transmission mechanism is used for transmitting the positioning mechanism in the horizontal direction;

[0008] a welding mechanism, the welding mechanism is used for welding the screw rod on the automobile parts on the positioning mechanism on the transmission mechanism;

[0009] and a polishing mechanism, the polishing mechanism is used for polishing the welding position of the screw rod and the automobile parts.

[0010] The present application is further provided: the positioning mechanism comprises a support plate, the support plate is horizontally arranged;

[0011] and two clamping blocks, the two clamping blocks are arranged at the two ends of the top of the support plate, and the two clamping blocks can move up and down to clamp the two ends of the automobile parts.

[0012] The support plate is further provided with a moving groove vertically penetrating the support plate and sliding grooves located on both sides of the moving groove, and the length direction of the moving groove and the length direction of the sliding grooves are both arranged along the length direction of the support plate.

[0013] The clamping block is provided with a connecting rod vertically penetrating the clamping block, the connecting rod is arranged as a round rod, the connecting rod vertically penetrates the moving groove and the clamping block, the bottom of the connecting rod is fixedly connected with a clamping block abutting the bottom of the support plate, and a nut capable of being pressed on the top of the clamping block is threadedly connected to the connecting rod.

[0014] The bottom of the clamping block is fixedly connected with two sliding blocks respectively inserted into the two sliding grooves, and the two sides of the sliding blocks are respectively abutted with the groove walls on the two sides of the sliding grooves.

[0015] The support plate is further provided with two extension rods fixedly connected on both sides of the support plate, the extension rods are arranged along the width direction of the support plate, and the extension rods are arranged at the middle positions in the length direction of the support plate.

[0016] One end of the extension rod away from the support plate is rotationally connected with a rotating rod, one end of the rotating rod is rotationally connected with the one end of the extension rod away from the support plate, the rotating axis of the rotating rod on the extension rod is horizontal and perpendicular to the length direction of the extension rod, the length direction of the rotating rod is perpendicular to the rotating axis of the rotating rod, and one end of the rotating rod away from the extension rod is fixedly connected with a support pad, and the support pad is arranged as a flexible support pad.

[0017] The part of the automobile part clamped by the clamping block is a working part, side edge parts of different angles are arranged on both sides of the working part and are bent upward, and the two support pads on the two rotating rods are respectively supported on the two side edge parts.

[0018] The transmission mechanism further comprises two transmission belts, the transmission directions of the transmission belts are horizontal and parallel to the width direction of the support plate, and the two transmission belts are arranged side by side.

[0019] The transmission mechanism further comprises two transmission rollers, the two transmission rollers are respectively located at the two ends of the transmission belts, the transmission belt is arranged in a closed loop around the two transmission rollers, and the two transmission belts are respectively located at the two ends of the transmission rollers.

[0020] The bottom of the support plate is fixedly connected with two connecting blocks, the two connecting blocks are arranged in two groups, the two groups of connecting blocks are respectively located at the two ends of the support plate, each group of connecting blocks is provided with two connecting blocks, the two connecting blocks in the same group are arranged along the width direction of the support plate, the two groups of connecting blocks at the bottom of the support plate are respectively connected with the two transmission belts, a plurality of groups of connecting holes are arranged on the transmission belt, each group of connecting holes is provided with two connecting holes, and the two connecting blocks in the same group can be inserted into the two connecting holes in the same group.

[0021] The welding mechanism comprises a welding seat capable of sliding in a horizontal direction perpendicular to the conveying direction of the conveying belt;

[0022] An electromagnetic block is fixedly connected to the bottom of the welding seat;

[0023] A limiting ring is fixedly connected to the bottom of the electromagnetic block, and the top end of the screw rod is inserted into the limiting ring and abuts against the inner wall of the limiting ring;

[0024] A rotating ring is sleeved outside the welding seat and is rotatably connected outside the rotating ring, the rotating axis of the rotating ring is vertical, and the rotating ring is coaxially arranged with the limiting ring;

[0025] A welding gun is arranged on the rotating ring, the welding gun is obliquely arranged, the bottom end of the welding gun is obliquely arranged towards the direction close to the axis of the limiting ring, and the welding gun is used for welding the connection between the bottom end of the screw rod in the limiting ring and the automobile part.

[0026] The rotating ring is fixedly connected with a supporting rod arranged in the radial direction of the rotating ring, and the top end of the welding gun is rotatably connected to the supporting rod, the rotating axis of the welding gun is horizontal and perpendicular to the length direction of the supporting rod;

[0027] The top end of the welding gun is provided with a connecting assembly, the connecting assembly comprises a connecting plate and an adjusting rod, two connecting plates are fixedly connected to the top end of the welding gun, the connecting plates are respectively located on the two sides of the supporting rod, a long slot is arranged on the connecting plate and penetrates through the connecting plate along the rotating axis of the welding gun, the length direction of the long slot is arranged along the length direction of the welding gun, two adjusting rods are fixedly connected to the two sides of the supporting rod and are respectively inserted into the two long slots, the adjusting rod is arranged as a round rod, the welding gun rotates around the axis of the adjusting rod, the connecting plate can rotate on the adjusting rod, and the adjusting rod can slide in the long slot along the length direction of the long slot;

[0028] Two nuts are threadedly connected to the two adjusting rods, and the two nuts can be pressed on the two sides of the two adjusting plates away from each other.

[0029] The polishing mechanism comprises a polishing seat capable of sliding in a horizontal direction perpendicular to the conveying direction of the conveying belt;

[0030] A polishing ring is sleeved outside the polishing seat, the axis of the polishing ring is vertical, and the polishing ring can rotate around the axis thereof;

[0031] A polishing rod is fixedly connected outside the polishing ring, and the length direction of the polishing rod is arranged in the radial direction of the polishing ring;

[0032] And a sander, the top end of the sander is connected to the sander rod, the sander is provided with a rotating shaft, the bottom end of the rotating shaft is fixedly connected with a sander head, and the sander head is used for polishing the welding position of the screw rod and the automobile parts.

[0033] The sander is connected with the sander rod through the connecting assembly.

[0034] The welding mechanism is provided with a feeding mechanism for providing the screw rod for the welding mechanism on one side.

[0035] The feeding mechanism comprises a feeding plate, and the feeding plate is arranged on one side of the conveying mechanism and horizontally arranged.

[0036] A storage box is fixedly connected to the top of the feeding plate, a plurality of bolts are vertically stacked in the storage box, the length direction of the bolt is horizontal and arranged along the length direction of the bottom of the storage box, a clearance hole is arranged through the storage box along the length direction of the storage box, the clearance hole is a circular hole and coaxial with the axis of the lowermost bolt in the storage box.

[0037] A pushing rod is arranged at the bottom end of the storage box, the pushing rod is a circular rod and the diameter of the pushing rod is equal to the diameter of the bolt, the pushing rod is coaxial with the clearance hole, the length of the pushing rod is greater than the length of the bottom of the storage box, and the pushing rod can slide along the length direction of the pushing rod to completely push the lowermost bolt in the storage box out of the storage box.

[0038] A turnover pipe is rotationally connected to the top of the feeding plate, the rotation axis of the turnover pipe is horizontal, the end of the turnover pipe close to the rotation axis is closed, when the turnover pipe is rotated to be horizontal, the turnover pipe is coaxial with the clearance hole, when the turnover pipe is rotated to be vertical, the limiting ring can be moved above the turnover pipe and the limiting ring is coaxial with the turnover pipe when the limiting ring is moved above the turnover pipe.

[0039] And an auxiliary block is arranged on the side close to the turnover pipe of the storage box, an arc-shaped groove is arranged on the top of the auxiliary block, and the arc-shaped groove is coaxial with the clearance hole.

[0040] Compared with the prior art, the present application has the following advantages: through the setting of the welding mechanism and the polishing mechanism, the screw rod can be welded on the automobile parts automatically, and the welding precision and quality are improved. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 It is a schematic view of the overall structure of the embodiment.

[0042] Figure 2 It is an enlarged schematic view of A of Figure 1

[0043] ​Figure 3 is an enlarged schematic view of part B of Figure 1

[0044] Figure 4 is an enlarged schematic view of part C of Figure 1

[0045] Figure 5 is an enlarged schematic view of part F of Figure 4

[0046] Figure 6 is an enlarged schematic view of part D of Figure 1

[0047] Figure 7 is an enlarged schematic view of part E of Figure 1

[0048] Figure 8 is a schematic view of the card block of the embodiment;

[0049] Figure 9 is an enlarged schematic view of part F of Figure 8

[0050] In the figure: 1, transmission mechanism; 11, transmission belt; 111, connecting hole; 12, transmission roller; 2, positioning mechanism; 21, support plate; 211, moving groove; 212, sliding groove; 22, clamping block; 23, connecting rod; 231, card block; 24, sliding block; 25, connecting block; 26, extension rod; 27, rotating rod; 28, support pad; 3, welding mechanism; 31, welding seat; 311, rotating ring; 32, electromagnetic block; 33, limiting ring; 34, support rod; 35, welding gun; 4, polishing mechanism; 41, polishing seat; 42, polishing ring; 43, polishing rod; 44, polisher; 5, feeding mechanism; 51, feeding plate; 52, storage box; 521, let go of the hole; 53, pushing rod; 54, auxiliary block; 541, arc-shaped groove; 55, turnover pipe; 6, connecting assembly; 61, connecting plate; 611, long slot; 62, adjusting rod. DETAILED DESCRIPTION

[0051] In order to make the personnel in the art better understand the technical solutions of the present application, the technical solutions of the present application will be described clearly and completely below in combination with the drawings of the present application. Based on the embodiments in the present application, other similar embodiments obtained by the person skilled in the art without making creative efforts shall belong to the protection scope of the present application. In addition, the direction words mentioned in the following embodiments, such as “up”, “down”, “left”, “right” and the like are only the directions of the drawings, therefore, the direction words used are used for illustration but not for limiting the present application.

[0052] The present application will be further described below in combination with the drawings and the preferred embodiments. ​​​​​​

[0053] The utility model provides an automobile part production welding equipment, refer to the attached Figure 1 -attached Figure 9 Including positioning mechanism 2, transmission mechanism 1, welding mechanism 3 and polishing mechanism 4, the positioning mechanism 2 is used for positioning automobile parts to make the position that needs to weld screw rod on automobile parts level and upward, the transmission mechanism 1 is used for transmission to positioning mechanism 2 along the horizontal direction, the welding mechanism 3 is used for the screw rod welding of automobile parts on the positioning mechanism 2 on transmission mechanism 1, the polishing mechanism 4 is used for polishing the welding of screw rod and automobile parts.

[0054] Positioning mechanism 2 is used for positioning automobile parts, so that the part that needs to be welded of automobile parts keeps level and upward, then transmission mechanism 1 is used for transmission to positioning mechanism 2 along the horizontal direction, transmission mechanism 1 drives positioning mechanism 2 to pass through welding mechanism 3 and polishing mechanism 4 in turn, the screw rod is welded on automobile parts by welding mechanism 3 at welding mechanism 3, then the welding of screw rod and automobile parts is polished at polishing mechanism 4.

[0055] Specifically, the positioning mechanism 2 includes a support plate 21 and clamping blocks 22, the support plate 21 is horizontally arranged, and the clamping blocks 22 are arranged at both ends of the top of the support plate 21 and can move up and down to clamp both ends of the automobile parts.

[0056] Specifically, the support plate 21 is provided with a moving slot 211 vertically penetrating the support plate 21 and sliding slots 212 located on both sides of the moving slot 211, the length direction of the moving slot 211 and the length direction of the sliding slots 212 are arranged along the length direction of the support plate 21, the clamping blocks 22 are provided with a connecting rod 23 vertically penetrating the clamping blocks 22, the connecting rod 23 is arranged as a round rod, the connecting rod 23 vertically penetrates the moving slot 211 and penetrates the clamping blocks 22, the bottom of the connecting rod 23 is fixedly connected with a clamping block 231 abutting the bottom of the support plate 21, and a nut capable of being pressed on the top of the clamping blocks 22 is threadedly connected to the connecting rod 23, the bottom of the clamping blocks 22 is fixedly connected with two sliding blocks 24 respectively inserted into the two sliding slots 212, and the two sides of the sliding blocks 24 respectively abut the slot walls on both sides of the sliding slots 212.

[0057] By adjusting the distance between the two clamping blocks 22, automobile parts of different lengths can be positioned.

[0058] Specifically, the support plate 21 is fixedly connected with two extension rods 26 on both sides, the extension rods 26 are arranged along the width direction of the support plate 21, and the extension rods 26 are arranged at the middle position in the length direction of the support plate 21; one end of the extension rod 26 away from the support plate 21 is rotatably connected with a rotating rod 27, one end of the rotating rod 27 is rotatably connected with the extension rod 26 away from the support plate 21, the rotating axis of the rotating rod 27 on the extension rod 26 is horizontal and perpendicular to the length direction of the extension rod 26, the length direction of the rotating rod 27 is perpendicular to the rotating axis of the rotating rod 27, and the end of the rotating rod 27 away from the extension rod 26 is fixedly connected with a support pad 28, and the support pad 28 is arranged as a flexible support pad 28; the part of the automobile part clamped by the clamping block 22 is a working part, and side edge parts curved upward at different angles are arranged on both sides of the working part, and the two support pads 28 on the two rotating rods 27 are respectively supported on the two side edge parts.

[0059] Through the arrangement of the two rotating rods 27 and the support pads 28, the positioning and supporting of the automobile part can be realized, so that the position of the working part in the width direction can be limited, and the position of the working part in the length direction can be limited by the two clamping blocks 22.

[0060] Specifically, the transmission mechanism 1 comprises a transmission belt 11 and a transmission roller 12, the transmission belt 11 is provided with two, the transmission direction of the transmission belt 11 is horizontal and parallel to the width direction of the support plate 21, and the two transmission belts 11 are arranged side by side; the transmission roller 12 is provided with two, the two transmission rollers 12 are respectively located at the two ends of the transmission belt 11, the transmission belt 11 is arranged in a closed loop around the two transmission rollers 12, and the two transmission belts 11 are respectively located at the two ends of the transmission roller 12; the support plate 21 is fixedly connected with a connecting block 25 at both ends of the bottom, the connecting block 25 is provided with two groups, the two groups of connecting blocks 25 are respectively located at both ends of the support plate 21, each group of connecting blocks 25 is provided with two, the two connecting blocks 25 in the same group are arranged along the width direction of the support plate 21, the two groups of connecting blocks 25 at the bottom of the support plate 21 are respectively connected with the two transmission belts 11, the transmission belt 11 is provided with a plurality of groups of connecting holes 111, each group of connecting holes 111 is provided with two, and the two connecting blocks 25 in the same group can be inserted into the two connecting holes 111 in the same group.

[0061] Specifically, the welding mechanism 3 comprises a welding seat 31, an electromagnetic block 32, a limiting ring 33, a rotating ring 311 and a welding gun 35, the welding seat 31 is capable of sliding along the horizontal direction perpendicular to the transmission direction of the transmission belt 11; the electromagnetic block 32 is fixedly connected at the bottom of the welding seat 31; the limiting ring 33 is fixedly connected at the bottom of the electromagnetic block 32, the top end of the screw rod is inserted into the limiting ring 33 and is in close contact with the inner wall of the limiting ring 33; the rotating ring 311 is sleeved outside the welding seat 31 and is rotatably connected outside the rotating ring 311, the rotating axis of the rotating ring 311 is vertical, the rotating ring 311 is coaxially arranged with the limiting ring 33; the welding gun 35 is arranged on the rotating ring 311, the welding gun 35 is arranged in an inclined manner, the bottom end of the welding gun 35 is arranged in an inclined manner towards the direction close to the axis of the limiting ring 33, and the welding gun 35 is used for welding the bottom end of the screw rod in the limiting ring 33 and the connection part of the automobile part.

[0062] By rotating the rotating ring 311, the welding gun 35 can be driven to rotate around the screw rod, so that the screw rod and the automobile part can be welded together.

[0063] Specifically, the rotating ring 311 is fixedly connected with a support rod 34 arranged along the radial direction of the rotating ring 311, the top end of the welding gun 35 is rotatably connected to the support rod 34, and the rotating axis of the welding gun 35 is horizontal and perpendicular to the length direction of the support rod 34; the top end of the welding gun 35 is provided with a connecting assembly 6, the connecting assembly 6 comprises a connecting plate 61 and an adjusting rod 62, two connecting plates 61 are fixedly connected to the top end of the welding gun 35, the connecting plates 61 are respectively located on the two sides of the support rod 34, the connecting plate 61 is provided with a long slot 611 penetrating through the connecting plate 61 along the rotating axis of the welding gun 35, the length direction of the long slot 611 is arranged along the length direction of the welding gun 35, the support rod 34 is fixedly connected with two adjusting rods 62 respectively inserted into the two long slots 611, the adjusting rod 62 is arranged as a round rod, the welding gun 35 rotates around the axis of the adjusting rod 62, the connecting plate 61 can rotate on the adjusting rod 62 and the adjusting rod 62 can slide in the long slot 611 along the length direction of the long slot 611; two nuts are threadedly connected to the two adjusting rods 62, and the two nuts can be pressed against the two sides of the two adjusting plates away from each other.

[0064] By arranging the long slot 611 and the adjusting rod 62, the position and the inclination angle of the welding gun 35 can be adjusted according to the length and the diameter of the screw rod.

[0065] Specifically, the polishing mechanism 4 comprises a polishing seat 41, a polishing ring 42, a polishing rod 43 and a polishing machine 44. The polishing seat 41 can slide in the horizontal direction perpendicular to the conveying direction of the conveying belt 11. The polishing ring 42 is sleeved outside the polishing seat 41, the axis of the polishing ring 42 is vertical, and the polishing ring 42 can rotate around its axis. The polishing rod 43 is fixedly connected outside the polishing ring 42, and the length direction of the polishing rod 43 is arranged along the radial direction of the polishing ring 42. The top end of the polishing machine 44 is connected to the polishing rod 43. The polishing machine 44 is provided with a rotating shaft, and the bottom end of the rotating shaft is fixedly connected with a polishing head. The polishing head is used for polishing the welding position of the screw rod and the automobile parts. The polishing machine 44 rotates around the screw rod to polish the welding position of the screw rod and the automobile parts.

[0066] Specifically, the polishing machine 44 is connected with the polishing rod 43 through the connecting assembly 6.

[0067] Specifically, the welding mechanism 3 is provided with the feeding mechanism 5 for providing the screw rod for the welding mechanism 3. The feeding mechanism 5 comprises a feeding plate 51, a storage box 52, a pushing rod 53, a turnover pipe 55 and an auxiliary block 54. The feeding plate 51 is arranged on one side of the conveying mechanism 1 and is horizontally arranged. The storage box 52 stores a plurality of vertically stacked bolts. The storage box 52 is fixedly connected to the top of the feeding plate 51. The length direction of the bolt is horizontal and arranged along the length direction of the bottom of the storage box 52. The storage box 52 is provided with a clearance hole 521 penetrating the storage box 52 along the length direction of the storage box 52. The clearance hole 521 is a circular hole and coaxial with the axis of the lowermost bolt in the storage box 52. The pushing rod 53 is arranged at the bottom end of the storage box 52. The pushing rod 53 is a circular rod and the diameter of the pushing rod 53 is equal to the diameter of the bolt. The pushing rod 53 is coaxial with the clearance hole 521. The length of the pushing rod 53 is greater than the length of the bottom of the storage box 52. The pushing rod 53 can slide along the length direction thereof to completely push out the lowermost bolt in the storage box 52. The turnover pipe 55 is rotatably connected to the top of the feeding plate 51. The rotating axis of the turnover pipe 55 is horizontal. The turnover pipe 55 is closed at the end close to the rotating axis. When the turnover pipe 55 is rotated to be horizontal, the turnover pipe 55 is coaxial with the clearance hole 521. When the turnover pipe 55 is rotated to be vertical, the limiting ring 33 can move above the turnover pipe 55 and the limiting ring 33 is coaxial with the turnover pipe 55 when the limiting ring 33 moves above the turnover pipe 55. The auxiliary block 54 is arranged on the side of the storage box 52 close to the turnover pipe 55. The top of the auxiliary block 54 is provided with an arc-shaped groove 541 coaxial with the clearance hole 521.

[0068] Specifically, the welding seat 31 can vertically slide.

[0069] The screw rod in the storage box 52 is pushed out by the pushing rod 53, one end of the screw rod is inserted into the turnover tube 55, then the screw rod is turned to vertical by the turnover of the turnover tube 55, then the welding seat 31 moves to above the turnover tube 55, the top of the screw rod is inserted into the limiting ring 33 by the vertical movement of the welding seat 31, then the screw rod is adsorbed in the limiting ring 33 by the electromagnetic block 32.

[0070] The above is only the preferred embodiment of the present application, the protection scope of the present application is not limited to the above-mentioned examples, all technical solutions belonging to the idea of the present application belong to the protection scope of the present application. It should be pointed out that, for ordinary skilled in the art, some improvements and decorations without departing from the principles of the present application, these improvements and decorations should also be considered as the protection scope of the present application.

Claims

1. A welding device for automobile parts production, characterized in that: The positioning mechanism (2) is used for positioning the automobile parts so that the positions needing to be welded with the screw rods on the automobile parts are horizontal and upward. The transmission mechanism (1) is used for transmitting the positioning mechanism (2) in the horizontal direction. The welding mechanism (3) is used for screw rod welding on the automobile parts on the positioning mechanism (2) on the transmission mechanism (1). And the polishing mechanism (4) is used for polishing the welding position of the screw rod and the automobile part. The positioning mechanism (2) comprises a support plate (21) arranged horizontally. Two clamping blocks (22) are arranged at the two ends of the top of the support plate (21), and the two clamping blocks (22) can move up and down to clamp the two ends of the automobile part. The support plate (21) is provided with a moving groove (211) vertically penetrating the support plate (21) and a sliding groove (212) located on both sides of the moving groove (211), and the length direction of the moving groove (211) and the length direction of the sliding groove (212) are arranged along the length direction of the support plate (21). The clamping block (22) is provided with a connecting rod (23) vertically penetrating the clamping block (22), the connecting rod (23) is arranged as a round rod, the connecting rod (23) vertically penetrates the moving groove (211) and penetrates the clamping block (22), the bottom of the connecting rod (23) is fixedly connected with a clamping block (231) abutting the bottom of the support plate (21), and a nut capable of being pressed on the top of the clamping block (22) is threadedly connected on the connecting rod (23). The bottom of the clamping block (22) is fixedly connected with two sliding blocks (24) respectively inserted into the two sliding grooves (212), and the two sides of the sliding block (24) respectively abut the groove walls on both sides of the sliding groove (212). The two sides of the support plate (21) are fixedly connected with two extension rods (26), the extension rods (26) are arranged along the width direction of the support plate (21), and the extension rods (26) are arranged at the middle positions of the length direction of the support plate (21). The end of the extension rod (26) away from the support plate (21) is rotationally connected with a rotating rod (27), one end of the rotating rod (27) is rotationally connected with the end of the extension rod (26) away from the support plate (21), the rotating axis of the rotating rod (27) on the extension rod (26) is horizontal and perpendicular to the length direction of the extension rod (26), the length direction of the rotating rod (27) is perpendicular to the rotating axis of the rotating rod (27), and the end of the rotating rod (27) away from the extension rod (26) is fixedly connected with a support pad (28), and the support pad (28) is arranged as a flexible support pad. The part of the automobile part clamped by the clamping block (22) is a working part, and side edge parts curved upward at different angles are arranged on both sides of the working part, and the two support pads (28) on the two rotating rods (27) are respectively supported on the two side edge parts.

2. The welding apparatus for production of automobile parts as claimed in claim 1 wherein: The transmission mechanism (1) comprises two transmission belts (11), the transmission direction of the transmission belts (11) is horizontal and parallel to the width direction of the support plate (21), and the two transmission belts (11) are arranged side by side; Two transmission rollers (12) are arranged, and the two transmission rollers (12) are respectively located at the two ends of the transmission belts (11), the transmission belts (11) are arranged in a closed loop around the two transmission rollers (12), and the two transmission belts (11) are respectively located at the two ends of the transmission rollers (12); Two connecting blocks (25) are fixedly connected to the bottom of the two ends of the support plate (21), the two connecting blocks (25) are arranged in two groups, the two connecting blocks (25) in each group are arranged along the width direction of the support plate (21), and the two groups of connecting blocks (25) on the bottom of the support plate (21) are connected to the two transmission belts (11), respectively.

3. The welding apparatus for production of automobile parts as claimed in claim 2 wherein: The welding mechanism (3) comprises a welding seat (31) which can slide in the horizontal direction perpendicular to the transmission direction of the transmission belt (11); An electromagnetic block (32) is fixedly connected to the bottom of the welding seat (31); A limiting ring (33) is fixedly connected to the bottom of the electromagnetic block (32), one end of the top of the screw rod is inserted into the limiting ring (33) and abuts against the inner wall of the limiting ring (33); A rotating ring (311) is sleeved outside the welding seat (31) and is rotatably connected outside the rotating ring (311), the rotating axis of the rotating ring (311) is vertical, and the rotating ring (311) is coaxially arranged with the limiting ring (33); And a welding gun (35) is arranged on the rotating ring (311), the welding gun (35) is arranged obliquely, one end of the bottom of the welding gun (35) is arranged obliquely towards the direction close to the axis of the limiting ring (33), and the welding gun (35) is used for welding the connection between the bottom of the screw rod in the limiting ring (33) and the automobile part.

4. The welding apparatus for producing an automobile part according to claim 3, characterized by: The rotating ring (311) is fixedly connected with a support rod (34) arranged in the radial direction of the rotating ring (311), one end of the top of the welding gun (35) is rotatably connected to the support rod (34), and the rotating axis of the welding gun (35) is horizontal and perpendicular to the length direction of the support rod (34); The top end of the welding gun (35) is provided with a connecting assembly (6), the connecting assembly (6) comprises two connecting plates (61) and two adjusting rods (62), the two connecting plates (61) are fixedly connected at the top end of the welding gun (35), the two connecting plates (61) are located on the two sides of the supporting rod (34) respectively, the two connecting plates (61) are provided with two long grooves (611) penetrating through the two connecting plates (611) along the rotation axis of the welding gun (35), the length direction of the two long grooves (611) is arranged along the length direction of the welding gun (35), the two adjusting rods (62) are fixedly connected on the two sides of the supporting rod (34) and are inserted into the two long grooves (611) respectively, the two adjusting rods (62) are circular rods, the welding gun (35) rotates around the axis of the two adjusting rods (62), the two connecting plates (61) can rotate on the two adjusting rods (62) and the two adjusting rods (62) can slide in the two long grooves (611) along the length direction of the two long grooves (611); Two nuts are threadedly connected on the two adjusting rods (62), and the two nuts can be pressed on the two sides of the two adjusting plates away from each other.

5. The welding apparatus for producing an automobile part according to claim 4, characterized by: The polishing mechanism (4) comprises a polishing seat (41) capable of sliding in a horizontal direction perpendicular to the transmission direction of the transmission belt (11); A polishing ring (42) is arranged outside the polishing seat (41), the axis of the polishing ring (42) is vertical, and the polishing ring (42) can rotate around its axis; A polishing rod (43) is fixedly connected outside the polishing ring (42), and the length direction of the polishing rod (43) is arranged along the radial direction of the polishing ring (42); And a polisher (44) is connected at the top end of the polishing rod (43), the polisher (44) is provided with a rotating shaft, the bottom end of the rotating shaft is fixedly connected with a polishing head, and the polishing head is used for polishing the welding position of the screw rod and the automobile part.

6. A welding apparatus for producing an automobile component as claimed in claim 5, characterized in that: The polisher (44) is connected with the polishing rod (43) through the connecting assembly (6).

7. The welding apparatus for producing an automobile part according to claim 6, characterized by: The welding mechanism (3) is provided with a feeding mechanism (5) for providing the screw rod for the welding mechanism (3); The feeding mechanism (5) comprises a feeding plate (51) arranged on one side of the transmission mechanism (1) and horizontally arranged; A storage box (52) is provided with a plurality of vertically stacked bolts, the storage box (52) is fixedly connected to the top of the feeding plate (51), the length direction of the bolt is horizontal and arranged along the length direction of the bottom of the storage box (52), the storage box (52) is provided with a clearance hole (521) penetrating through the storage box (52) along the length direction of the storage box (52), the clearance hole (521) is a circular hole coaxial with the axis of the lowermost bolt in the storage box (52); A pushing rod (53) is arranged at one end of the bottom of the storage box (52), the pushing rod (53) is arranged as a round rod, the diameter of the pushing rod (53) is equal to the diameter of the bolt, the pushing rod (53) is coaxial with the let-in hole (521), the length of the pushing rod (53) is greater than the length of the bottom of the storage box (52), and the pushing rod (53) can slide along the length direction of the pushing rod (53) to push the lowermost bolt in the storage box (52) out of the storage box (52); A turnover pipe (55) is rotationally connected to the top of the feeding plate (51), the rotation axis of the turnover pipe (55) is horizontal, the turnover pipe (55) is closed at one end close to the rotation axis, when the turnover pipe (55) is rotated to be horizontal, the turnover pipe (55) is coaxial with the let-in hole (521), when the turnover pipe (55) is rotated to be vertical, the limiting ring (33) can be moved above the turnover pipe (55), and when the limiting ring (33) is moved above the turnover pipe (55), the limiting ring (33) is coaxial with the turnover pipe (55); and an auxiliary block (54) is arranged at one side of the storage box (52) close to the turnover pipe (55), the top of the auxiliary block (54) is provided with an arc-shaped groove (541), and the arc-shaped groove (541) is coaxial with the let-in hole (521).

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