Multi-surface welding robot

Abstract

The invention discloses a multi-face welding robot, and relates to the related technical field of mechanical welding, the multi-face welding robot comprises a base, a welding robot base is fixedly mounted at the top of the base, a mechanical arm is arranged at the top of the welding robot base, and an electric push rod is fixedly mounted on the surface of the mechanical arm; a fixing frame is fixedly installed at the output end of the electric push rod, a welding gun is rotatably installed on the inner wall of the fixing frame, a rotating rod is rotated to be matched with a first spiral groove, the rotating rod, a push plate, a sliding rod and a clamping plate to clamp a workpiece, and after the workpiece is clamped, a mechanical arm is matched with the electric push rod, a fixing button and the welding gun to conduct multi-face welding on the workpiece. A clamping device, an auxiliary device and a pressing device are arranged above the base, in the adjusting process, parameter setting errors are possibly caused by unintentional rotation of the rotating rod, human errors can be reduced by preventing rotation of the rotating rod, and the safety and reliability of operation are improved.

Description

Technical Field

[0001] The invention relates to the technical field related to mechanical welding, and in particular to a multi-faceted welding robot. Background Art

[0002] The multi-faceted welding robot is an automated device specially designed for welding operations in complex and multi-angle environments. With the continuous pursuit of production efficiency, welding quality and flexibility in the manufacturing industry, the multi-faceted welding robot has gradually become an important tool in the welding industry.

[0003] The patent with patent announcement number CN219293111U involves the technical field related to mechanical welding. The patent is applicable to the technical field related to mechanical welding and provides a multi-sided welding robot, including a base plate, a first connecting plate fixedly connected to the base plate, a first rotating motor fixedly connected to the first connecting plate, a second connecting plate fixedly connected to the output end of the first rotating motor, a first clamping adjustment unit for clamping and adjusting the welding machine is arranged on the second connecting plate, a symmetrically arranged slide rail is arranged on the base plate, a movable plate is arranged on the base plate, a slide groove matching the slide rail is arranged at the lower end of the movable plate, and a second clamping adjustment unit for clamping the workpiece is arranged on the movable plate. The patent can drive the second connecting plate to rotate through the first rotating motor and then drive the first clamping adjustment unit of the clamping welding machine to rotate, the movable plate can move in the direction of the slide rail and the slide groove, and move the position of the workpiece clamped by the second clamping adjustment unit, thereby adjusting the direction of the workpiece to facilitate multi-sided welding.

[0004] In the above patent, the direction of the workpiece can be adjusted to facilitate multi-sided welding. However, the current measuring equipment has the following problems: during the adjustment process, uncontrollable external force may cause parameter setting errors, resulting in unpredictable misoperation when welding the workpiece, affecting welding efficiency. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a multi-surface welding robot, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-faceted welding robot comprises a base, a welding robot base is fixedly installed on the top of the base, a mechanical arm is arranged on the top of the welding robot base, an electric push rod is fixedly installed on the surface of the mechanical arm, a fixed frame is fixedly installed on the output end of the electric push rod, a welding gun is rotatably installed on the inner wall of the fixed frame, and a clamping device, an auxiliary device and a clamping device are arranged above the base; wherein, the clamping device comprises a fixed plate 1, a fixed plate 2, a rotating rod, a push plate, a sliding rod, a clamping plate, a No. 1 spring, a limiting rod, a blocking block, a rack block 1 and a gear 1, the fixed plate 1 is fixedly installed on the top of the base, the fixed plate 2 is fixedly installed on the top of the base, and the rotating rod rotates through The inner and outer walls of the fixed plate are fixedly installed on the left side of the rotating rod, and the sliding rod slides through the inner and outer walls of the pushing plate, and the clamping plate is fixedly installed on the left side of the sliding rod. The No. 1 spring is arranged between the clamping plate and the pushing plate, and the limit rod is rotatably installed on the right side of the rotating rod, and the blocking block is slidably installed on the circumferential surface of the limit rod. By placing the workpiece on the top of the base 1 and fitting it with the fixed plate 2, the spiral groove 1 is driven to rotate by rotating the rotating rod, and the rotation of the spiral groove causes the rotating rod to reciprocate left and right in a straight line. When the rotating rod moves, it drives the pushing plate to move, and the movement of the pushing plate drives the sliding rod to move and drives the rack block 1 to move at the same time. The movement of the sliding rod drives the clamping plate to move, and the clamping plate moves to clamp the workpiece, and the rack block 1 is fixedly installed at the bottom of the pushing plate, and the gear 1 is fixedly installed on the inner wall of the base.

[0007] According to the above technical solution, a spiral groove 1 is provided on the circumferential surface of the rotating rod, and the spiral groove 1 is threadedly connected to a fixed plate 1. The spiral groove 1 is driven to rotate by rotating the rotating rod, and the rotation of the spiral groove 1 causes the rotating rod to move back and forth in a straight line left and right. A clamping groove is provided on the right side of the rotating rod. When the rotating rod stops rotating, the clamping block is clamped into the clamping groove, and the rotating rod cannot rotate at this time. If the rotating rod needs to be rotated, the clamping block is moved to fit with the limit rod to rotate the rotating rod, and the rack block 1 is meshed with gear 1.

[0008] According to the above technical solution, the auxiliary device includes a card block and a limit groove, the card block is slidably installed on the right side of the push plate, a No. 2 spring is arranged between the card block and the push plate, and the limit groove is arranged on the inner wall of the base. When the clamping force of the splint is too large, the splint is forced to move to the right and compress the No. 1 spring. The movement of the splint drives the sliding rod to move. The movement of the sliding rod will contact the inclined surface of the card block to make the card block move downward. The downward movement of the card block will be inserted into the limit groove, and the push plate cannot continue to move to the left.

[0009] According to the above technical solution, the auxiliary device also includes rack block 2 and a support plate. Rack block 2 is slidably installed on the inner wall of the base, and the support plate is fixedly installed on the top of rack block 2. Rack block 1 moves to the left to drive gear 1 to rotate counterclockwise, and gear 1 rotates counterclockwise to drive rack block 2 to move forward. The movement of rack block 2 drives the support plate to move, thereby clamping both sides of the workpiece.

[0010] According to the above technical solution, the auxiliary device also includes a screw rod, a sliding plate and a fixed block. The screw rod is rotatably installed on the inner wall of the second fixed plate. The sliding plate is slidably installed on the circumferential surface of the screw rod. The fixed block is fixedly installed on the top of the sliding plate. The circumferential surface of the screw rod is provided with a spiral groove 2, and the spiral groove 2 is threadedly connected to the sliding plate. The spiral groove 2 is rotated by rotating the screw rod, and the rotation of the spiral groove 2 causes the sliding plate to move back and forth up and down.

[0011] According to the above technical solution, the auxiliary device also includes a fixing button, an L rod and a handle. The fixing button is fixedly installed on the outer wall of the fixing block, the L rod is rotatably installed on the outer wall of the fixing button, and the handle is fixedly installed on the inner wall of the L rod. The L rod is rotated by rotating the handle upward, and the rotation of the L rod drives the connecting button to rotate.

[0012] According to the above technical solution, the clamping device includes a connecting button, a rotating button, a connecting rod and a mounting frame, the rotating button is rotatably installed on the inner wall of the fixed button, one side of the connecting button is rotatably installed on the outer wall of the rotating button, the other side of the connecting button is rotatably installed on the inner wall of the L rod, the connecting rod is fixedly installed on the outer wall of the rotating button, and the mounting frame is fixedly installed on the surface of the connecting rod. The rotation of the connecting button drives the rotating button to rotate, the rotation of the rotating button drives the connecting rod to move, the movement of the connecting rod drives the mounting frame to move, and the movement of the mounting frame drives gear 2 to move.

[0013] According to the above technical scheme, the clamping device also includes gear 2, a slide bar and a pressure block. The gear 2 is rotatably installed on the inner wall of the mounting frame, the slide bar is slidably installed on the inner wall of the mounting frame, and the pressure block is fixedly installed on the outer wall of the slide bar. The inner wall of the slide bar is provided with a rack, and the rack is meshed with gear 2. The movement of the slide bar drives the pressure block to move until it contacts the workpiece. When the pressure block contacts the workpiece, if the surface height of the workpiece is different, the pressure block is forced to move the slide bar upward, and the movement of the slide bar drives the rack to move. The movement of the rack causes gear 2 to rotate, and the rotation of gear 2 corrects the position of the slide bar on the other side, thereby finally clamping the top of the workpiece.

[0014] The present invention provides a multi-surface welding robot having the following beneficial effects: (1) The invention, through the setting of the clamping device, places the workpiece on the top of the base and fits it with the fixed plate 2, and then rotates the rotating rod to cooperate with the spiral groove 1, the rotating rod, the push plate, the sliding rod and the clamping plate to clamp the workpiece. After the workpiece is clamped, the electric push rod is driven by the mechanical arm to move, and the output end of the electric push rod moves to drive the fixing button to move, and the fixing button moves to drive the welding gun to move, so that the workpiece can be welded on multiple sides. When the rotating rod stops rotating, the locking block is inserted into the locking groove, and the rotating rod cannot rotate at this time. If the rotating rod needs to be rotated, the locking block is moved to fit with the limit rod to rotate the rotating rod. During the adjustment process, unintentional rotation of the rotating rod may cause parameter setting errors. Preventing the rotating rod from rotating can reduce human errors and improve the safety and reliability of operation.

[0015] (2) This invention, through the setting of auxiliary devices, when the clamping force of the clamping plate is too large, the clamping plate is forced to move to the right, and the spring No. 1, sliding rod, clamping block and limiting groove limit the push plate from moving further to the left, that is, preventing the clamping plate from crushing the workpiece, which can reduce the displacement or deformation of the workpiece during the processing, thereby improving the processing accuracy and consistency of the product. The rack block 1 cooperates with the gear 1, rack block 2 and support plate to clamp the two sides of the workpiece, preventing the workpiece from being misaligned during welding and causing welding failure. The position of the sliding plate at different workpiece heights can be adjusted by rotating the screw in cooperation with the spiral groove 2, the sliding plate, the fixed block, the fixed button, the L-rod and the handle.

[0016] (3) The invention, through the setting of the clamping device, drives the L rod to rotate by turning the handle upward to cooperate with the connecting button, rotating button, connecting rod, mounting frame, gear 2, sliding rod and pressure block to clamp the top of the workpiece. When the pressure block contacts the workpiece, if the surface heights of the workpieces are different, the pressure block is forced to move the sliding rod upward, and the movement of the sliding rod drives the rack to move. The movement of the rack causes gear 2 to rotate. The rotation of gear 2 corrects the position of the sliding rod on the other side, and finally clamps the top of the workpiece. By clamping the workpiece, the degree of fusion of the weld metal can be enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the clamping device of the present invention; Figure 3 It is a schematic diagram of the position structure of the clamping plate and the push plate of the present invention; Figure 4 This is a schematic diagram of the position structure of the clamping block and the limiting groove of the present invention; Figure 5 This is a schematic diagram of the position structure of the positioning block and the limiting rod of the present invention; Figure 6 It is a schematic diagram of the structure of the auxiliary device of the present invention; Figure 7It is a schematic diagram of the structure of the pressing device of the present invention; Figure 8 It is a schematic diagram of the position structure of the connecting rod and the connecting button of the present invention.

[0018] In the figure: 1. base; 2. welding robot base; 3. mechanical arm; 4. electric push rod; 5. fixed frame; 6. welding gun; 10. fixed plate 1; 101. fixed plate 2; 11. rotating rod; 12. push plate; 13. sliding rod; 14. clamping plate; 15. spring No. 1; 16. limiting rod; 17. blocking block; 18. rack block 1; 19. gear 1; 20. blocking block; 21. limiting groove; 22. rack block 2; 23. supporting plate; 24. screw rod; 25. sliding plate; 26. fixed block; 27. fixing button; 28. L rod; 29. ​​grip; 30. connecting button; 31. rotating button; 32. connecting rod; 33. mounting frame; 34. gear 2; 35. sliding rod; 36. pressing block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 6An embodiment of the present invention is: a multi-faceted welding robot, comprising a base 1, a welding robot base 2 is fixedly installed on the top of the base 1, a mechanical arm 3 is arranged on the top of the welding robot base 2, an electric push rod 4 is fixedly installed on the surface of the mechanical arm 3, a fixed frame 5 is fixedly installed on the output end of the electric push rod 4, a welding gun 6 is rotatably installed on the inner wall of the fixed frame 5, a clamping device is arranged above the base 1, the clamping device comprises a fixed plate 10, a fixed plate 2 101, a rotating rod 11, a push plate 12, a sliding rod 13, a clamping plate 14, a first spring 15, a limiting rod 16, a positioning block 17, a rack block 18 and a gear 19, the fixed plate 10 is fixedly installed on the top of the base 1, the fixed plate 2 101 is fixedly installed on the top of the base 1, the rotating rod 11 rotates The fixed plate 10 penetrates the inner and outer walls, the push plate 12 is fixedly installed on the left side of the rotating rod 11, the sliding rod 13 slides and penetrates the inner and outer walls of the push plate 12, the clamping plate 14 is fixedly installed on the left side of the sliding rod 13, and the clamping plate 14 moves to clamp the workpiece. A spring 15 is set between the clamping plate 14 and the push plate 12. The clamping plate 14 is reset by the set spring 15. The limit rod 16 is rotatably installed on the right side of the rotating rod 11. The positioning block 17 is slidably installed on the circumferential surface of the limit rod 16. The rack block 18 is fixedly installed on the bottom of the push plate 12, and the gear 19 is fixedly installed on the inner wall of the base 1. During the adjustment process, unintentional rotation of the rotating rod 11 may cause parameter setting errors. Preventing the rotating rod 11 from rotating can reduce human errors and improve the safety and reliability of operation.

[0021] A spiral groove 1 is provided on the circumferential surface of the rotating rod 11, and the spiral groove 1 is threadedly connected to the fixed plate 10. The rotation of the spiral groove 1 enables the rotating rod 11 to move back and forth in a straight line. A slot is provided on the right side of the rotating rod 11, and the rack block 18 is engaged with the gear 19. The rotating rod 11 is restricted from rotating by inserting the locking block 17 into the slot.

[0022] When the present embodiment is working, the workpiece is placed on the top of the base 1 and fits with the fixed plate 2 101, and the spiral groove 1 is driven to rotate by rotating the rotating rod 11. The rotation of the spiral groove 1 causes the rotating rod 11 to move back and forth in a straight line. When the rotating rod 11 moves, it drives the push plate 12 to move. The movement of the push plate 12 drives the sliding rod 13 to move and drives the rack block 18 to move. The movement of the sliding rod 13 drives the clamping plate 14 to move. The movement of the clamping plate 14 realizes the clamping of the workpiece. After the workpiece is clamped, the electric push rod 4 is driven to move by the mechanical arm 3. The output end of the electric push rod 4 moves to drive the fixing button 5 to move, and the movement of the fixing button 5 drives the welding gun 6 to move, so that multi-sided welding can be performed on the workpiece. When the rotating rod 11 stops rotating, the locking block 17 is locked in the slot. At this time, the rotating rod 11 cannot rotate. If the rotating rod 11 needs to be rotated, the locking block 17 is moved to fit with the limit rod 16 to rotate the rotating rod 11. During the adjustment process, unintentional rotation of the rotating rod 11 may cause parameter setting errors. Preventing the rotating rod 11 from rotating can reduce human errors and improve the safety and reliability of operation.

[0023] See also Figure 1-Figure 8 On the basis of the above embodiment, in another embodiment of the present invention, an auxiliary device and a clamping device are arranged above the base 1, the auxiliary device includes a clamping block 20 and a limiting groove 21, the clamping block 20 is slidably installed on the right side of the push plate 12, and a No. 2 spring is arranged between the clamping block 20 and the push plate 12. The clamping block 20 is reset by the arranged No. 2 spring, and the limiting groove 21 is arranged on the inner wall of the base 1, that is, to prevent the clamping plate 14 from crushing the workpiece, which can reduce the displacement or deformation of the workpiece during the processing, thereby improving the processing accuracy and consistency of the product.

[0024] The auxiliary device also includes a rack block 22 and a support plate 23. The rack block 22 is slidably mounted on the inner wall of the base 1, and the support plate 23 is fixedly mounted on the top of the rack block 22 to clamp both sides of the workpiece to prevent the workpiece from being misaligned during welding and causing welding failures.

[0025] The auxiliary device also includes a screw rod 24, a sliding plate 25 and a fixed block 26. The screw rod 24 is rotatably installed on the inner wall of the fixed plate 2 101, the sliding plate 25 is slidably installed on the circumferential surface of the screw rod 24, and the fixed block 26 is fixedly installed on the top of the sliding plate 25. The circumferential surface of the screw rod 24 is provided with a spiral groove 2, and the spiral groove 2 is threadedly connected to the sliding plate 25 to adjust the position of the sliding plate 25 at different workpiece heights.

[0026] The auxiliary device also includes a fixing button 27, an L rod 28 and a handle 29. The fixing button 27 is fixedly mounted on the outer wall of the fixing block 26, the L rod 28 is rotatably mounted on the outer wall of the fixing button 27, and the handle 29 is fixedly mounted on the inner wall of the L rod 28 to drive the clamping device to clamp the top of the workpiece.

[0027] The clamping device includes a connecting button 30, a rotating button 31, a connecting rod 32 and a mounting bracket 33. The rotating button 31 is rotatably installed on the inner wall of the fixed button 27, one side of the connecting button 30 is rotatably installed on the outer wall of the rotating button 31, and the other side of the connecting button 30 is rotatably installed on the inner wall of the L rod 28. The connecting rod 32 is fixedly installed on the outer wall of the rotating button 31, and the mounting bracket 33 is fixedly installed on the surface of the connecting rod 32. The rotation of the connecting button 30 drives the rotating button 31 to rotate, the rotation of the rotating button 31 drives the connecting rod 32 to move, and the movement of the connecting rod 32 drives the mounting bracket 33 to move.

[0028] The clamping device also includes gear 2 34, slide bar 35 and pressure block 36. Gear 2 34 is rotatably mounted on the inner wall of the mounting frame 33, slide bar 35 is slidably mounted on the inner wall of the mounting frame 33, and pressure block 36 is fixedly mounted on the outer wall of slide bar 35. A rack is provided on the inner wall of slide bar 35, and the rack is meshed with gear 2 34. When pressure block 36 contacts the workpiece, if the surface height of the workpiece is different, the slide bar 35 on the other side is corrected by gear 2 34, and finally the top of the workpiece is clamped. By clamping the workpiece, the degree of fusion of the weld metal can be enhanced.

[0029] When the clamping force of the clamping plate 14 is too large, the clamping plate 14 is forced to move to the right and compress the spring 15. The movement of the clamping plate 14 drives the slide bar 13 to move. The movement of the slide bar 13 will contact the inclined surface of the block 20 so that the block 20 moves downward. The block 20 moves downward and inserts into the limit groove 21. At this time, the push plate 12 cannot continue to move to the left, that is, to prevent the clamping plate 14 from crushing the workpiece, which can reduce the deviation or deformation of the workpiece during the processing, thereby improving the processing accuracy and consistency of the product. The rack block 18 moves to the left to drive the gear 19 to rotate counterclockwise, and the gear 19 rotates counterclockwise. The clockwise rotation drives the rack block 22 to move forward, and the movement of the rack block 22 drives the support plate 23 to move, so as to clamp the two sides of the workpiece, and prevent the workpiece from being misaligned during welding and causing welding failure. The spiral groove 2 is driven to rotate by rotating the screw rod 24, and the rotation of the spiral groove 2 causes the sliding plate 25 to reciprocate up and down. The movement of the sliding plate 25 drives the fixed block 26 to move, and the movement of the fixed plate 26 drives the fixed button 27 to move, and the movement of the fixed button 27 drives the L rod 28 to move, and the movement of the L rod 28 drives the handle 29 to move, so as to adjust the position of the sliding plate 25 at different workpiece heights; By rotating the handle 29 upward, the L rod 28 is driven to rotate, and the rotation of the L rod 28 drives the connecting button 30 to rotate, and the rotation of the connecting button 30 drives the rotating button 31 to rotate, and the rotation of the rotating button 31 drives the connecting rod 32 to move, and the movement of the connecting rod 32 drives the mounting bracket 33 to move, and the movement of the mounting bracket 33 drives the gear 2 34 to move, and at the same time drives the slide bar 35 to move, and the movement of the slide bar 35 drives the pressure block 36 to move until it contacts the workpiece. When the pressure block 36 contacts the workpiece, if the surface heights of the workpieces are different, the pressure block 36 is forced to move the slide bar 35 upward, and the movement of the slide bar 35 drives the rack to move, and the movement of the rack causes the gear 2 34 to rotate, and the rotation of the gear 2 34 corrects the position of the slide bar 35 on the other side, and finally the top of the workpiece is pressed tightly. By pressing the workpiece tightly, the fusion degree of the weld metal can be enhanced.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-surface welding robot, comprising a base (1), characterized in that: A welding robot base (2) is fixedly mounted on the top of the base (1), a mechanical arm (3) is arranged on the top of the welding robot base (2), an electric push rod (4) is fixedly mounted on the surface of the mechanical arm (3), a fixed frame (5) is fixedly mounted on the output end of the electric push rod (4), a welding gun (6) is rotatably mounted on the inner wall of the fixed frame (5), and a clamping device, an auxiliary device and a pressing device are arranged above the base (1); The clamping device comprises a fixing plate 1 (10), a fixing plate 2 (101), a rotating rod (11), a push plate (12), a sliding rod (13), a clamping plate (14), a spring (15), a limiting rod (16), a blocking block (17), a rack block 1 (18) and a gear 1 (19), wherein the fixing plate 1 (10) is fixedly mounted on the top of the base (1), the fixing plate 2 (101) is fixedly mounted on the top of the base (1), the rotating rod (11) rotates and penetrates the inner and outer walls of the fixing plate 1 (10), and the push plate (12) is fixedly mounted Installed on the left side of the rotating rod (11), the sliding rod (13) slides through the inner and outer walls of the push plate (12), the clamping plate (14) is fixedly installed on the left side of the sliding rod (13), the No. 1 spring (15) is set between the clamping plate (14) and the push plate (12), the limiting rod (16) is rotatably installed on the right side of the rotating rod (11), the blocking block (17) is slidably installed on the circumferential surface of the limiting rod (16), the rack block 1 (18) is fixedly installed on the bottom of the push plate (12), and the gear 1 (19) is fixedly installed on the inner wall of the base (1).

2. A multi-surface welding robot according to claim 1, characterized in that: The circumferential surface of the rotating rod (11) is provided with a spiral groove 1, the spiral groove 1 is threadedly connected to the fixing plate 1 (10), the right side of the rotating rod (11) is provided with a clamping groove, and the rack block 1 (18) is meshed with the gear 1 (19).

3. A multi-surface welding robot according to claim 2, characterized in that: The auxiliary device comprises a clamping block (20) and a limiting groove (21); the clamping block (20) is slidably mounted on the right side of the push plate (12); a second spring is arranged between the clamping block (20) and the push plate (12); and the limiting groove (21) is arranged on the inner wall of the base (1).

4. A multi-surface welding robot according to claim 3, characterized in that: The auxiliary device further comprises a second rack block (22) and a support plate (23), wherein the second rack block (22) is slidably mounted on the inner wall of the base (1), and the support plate (23) is fixedly mounted on the top of the second rack block (22).

5. A multi-surface welding robot according to claim 4, characterized in that: The auxiliary device further comprises a screw rod (24), a sliding plate (25) and a fixed block (26); the screw rod (24) is rotatably mounted on the inner wall of the second fixed plate (101); the sliding plate (25) is slidably mounted on the circumferential surface of the screw rod (24); the fixed block (26) is fixedly mounted on the top of the sliding plate (25); the circumferential surface of the screw rod (24) is provided with a second spiral groove, and the second spiral groove is threadedly connected to the sliding plate (25).

6. A multi-surface welding robot according to claim 5, characterized in that: The auxiliary device further comprises a fixing button (27), an L-rod (28) and a handle (29); the fixing button (27) is fixedly mounted on the outer wall of the fixing block (26); the L-rod (28) is rotatably mounted on the outer wall of the fixing button (27); and the handle (29) is fixedly mounted on the inner wall of the L-rod (28).

7. The multi-surface welding robot according to claim 6, characterized in that: The clamping device comprises a connecting button (30), a rotating button (31), a connecting rod (32) and a mounting frame (33); the rotating button (31) is rotatably mounted on the inner wall of the fixing button (27); one side of the connecting button (30) is rotatably mounted on the outer wall of the rotating button (31); the other side of the connecting button (30) is rotatably mounted on the inner wall of the L rod (28); the connecting rod (32) is fixedly mounted on the outer wall of the rotating button (31); and the mounting frame (33) is fixedly mounted on the surface of the connecting rod (32).

8. The multi-surface welding robot according to claim 7, characterized in that: The clamping device further comprises a second gear (34), a slide bar (35) and a pressure block (36); the second gear (34) is rotatably mounted on the inner wall of the mounting frame (33); the slide bar (35) is slidably mounted on the inner wall of the mounting frame (33); the pressure block (36) is fixedly mounted on the outer wall of the slide bar (35); a rack is provided on the inner wall of the slide bar (35), and the rack is meshed with the second gear (34).

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