Electric arc welding mechanism for stainless steel clamp

Abstract

The invention relates to the technical field of stainless steel clamp production, in particular to a stainless steel clamp electric arc welding mechanism which comprises a machining table provided with a welding mechanical arm, and is characterized by further comprising a rotary platform arranged on the machining table and provided with a clamping seat; the driving assembly is used for driving the clamping seat to move; the clamping assembly is installed on the side wall of the clamping base, and an adjusting assembly is arranged on the clamping assembly and used for adjusting the included angle of the clamping assembly; the clamping device has the beneficial effects that through cooperation of a positioning column and a second pull rope, an adjusting rod is driven to move, in the moving process, a spiral guide block is driven to move along a spiral guide groove, at the moment, a second clamping plate rotates relative to a first clamping plate, angle adjustment between the first clamping plate and the second clamping plate is achieved, and the first clamping plate and the second clamping plate are matched with the shape of a stainless steel clamp; the stainless steel clamp is accurately positioned and matched, the time for adjusting the tool is shortened, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stainless steel clamp production, in particular to a stainless steel clamp electric arc welding mechanism. BACKGROUND

[0002] The stainless steel clamp, also known as a stainless steel throat clamp or a stainless steel pipe clamp, is a fastener for fixing the connection of a pipe;

[0003] In order to strengthen the connection stability of the clamp, an inner liner is usually added in the stainless steel clamp during the production and processing of the stainless steel clamp, and the operation mode is to weld the inner liner on the inner peripheral wall of the clamp body. In the prior art, a stainless steel clamp production and processing welding device with the publication number CN119369012A is disclosed, which comprises a U-shaped workbench, a welding device mounting plate and a stainless steel clamp original piece. Two clamp positioning plates with opposite moving directions are slidably installed on the top of the U-shaped workbench, and the stainless steel clamp original piece is placed on the clamp positioning plates. Supports are fixedly installed on the front and rear sides of the U-shaped workbench. In the present application, when the clamp positioning plate moves, the linear guide rod can drive the follow-up sliding block to move along the linear sliding rail, and the follow-up sliding block moves away from the direction of the cross beam. Under the drive of the connecting rod, the air extractor mounting seat slides towards the middle part of the lubricating hole until the air extractor body moves above the clamp positioning plate. The air extractor body works to extract the welding slag and collect it in the slag collecting bag to keep the clamp positioning plate clean and provide a guarantee for the quality of subsequent welding.

[0004] In the above-mentioned technology, the welding between the clamp and the inner liner is realized through the cooperation of the clamp positioning plate and the welding device mounting plate. However, the clamp jaws on the clamp positioning plate are fixedly connected with the push rod. When the clamp is a special-shaped stainless steel clamp, such as a U-shaped clamp, the entire clamp positioning plate needs to be replaced to adapt to the special-shaped clamp, which is time-consuming and affects the welding efficiency. SUMMARY

[0005] The purpose of the present application is to provide a stainless steel clamp electric arc welding mechanism to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] A stainless steel clamp electric arc welding mechanism, comprising a processing table, at least one group of welding mechanical arms is installed on the processing table, characterized in that it further comprises:

[0008] A rotary platform is rotationally arranged at a position corresponding to the welding mechanical arm on the processing table, and two groups of symmetrically distributed clamping seats are arranged on the rotary platform.

[0009] A drive assembly for driving the two sets of clamping seats to move closer or further apart from each other, the drive assembly including a double-ended lead screw rotatably disposed on the rotary platform, the double-ended lead screw being screwed to the clamping seats;

[0010] A clamping assembly is installed on one side wall of the two sets of clamping seats that are close to each other. The clamping assembly includes a first clamping plate and a second clamping plate that are rotatably connected. An adjustment component is provided on the first clamping plate at a position corresponding to the second clamping plate to adjust the angle between the first clamping plate and the second clamping plate.

[0011] Furthermore, a guide groove is provided at the center of the upper end of the rotary platform, and a motor is installed at one end of the guide groove. The output end of the motor is connected to a double-ended lead screw.

[0012] Two sets of guide blocks are screwed onto the outer surface of the double-ended lead screw at positions corresponding to the two sets of clamping seats. The two sets of guide blocks are respectively connected to the lower ends of the corresponding two sets of clamping seats. The two sets of clamping seats move closer or further apart from each other through the cooperation of the guide blocks and the double-ended lead screw.

[0013] Cleaning collars are installed on the sidewalls of the two sets of guide blocks at positions corresponding to the double-ended lead screw, and the cleaning collars are fitted onto the outer surface of the double-ended lead screw.

[0014] Furthermore, two sets of symmetrically distributed fixing blocks are installed at the upper end of the clamping base. A transmission screw is rotatably installed inside each of the two sets of fixing blocks, and a connecting block is screwed onto the outer surface of each transmission screw. The clamping assembly is disposed between the two sets of connecting blocks.

[0015] Guide rods are provided on both sides of the first clamping plate and between the side walls of the corresponding two sets of connecting blocks.

[0016] Furthermore, each of the clamping seats is equipped with a dual-head motor at the position corresponding to the transmission screw, and the two output ends of the dual-head motor are connected to the first transmission shaft;

[0017] Each of the two sets of first drive shafts has a first bevel gear installed at the end furthest from the dual-head motor. Each of the two sets of drive screws has a second bevel gear installed at the position corresponding to the first bevel gear. The first bevel gear and the second bevel gear mesh with each other. The two sets of first clamping plates move closer or further apart from each other through the cooperation of the drive screw, the first bevel gear, and the second bevel gear.

[0018] Furthermore, the adjustment assembly includes two sets of second countersunk holes formed on the second clamping plate, and the first clamping plate has a receiving hole at the position corresponding to the two sets of second countersunk holes;

[0019] An adjusting rod is inserted into the interior of each of the aforementioned storage holes. A third return spring is provided between the end of each adjusting rod and the inner wall of the corresponding storage hole. The adjusting rod is elastically inserted into the interior of the corresponding second countersunk hole through the third return spring.

[0020] Furthermore, a spiral guide groove is provided on the inner wall of each of the second countersunk holes, and a spiral guide block is installed on the outer surface of each adjusting rod at the position corresponding to the second countersunk hole. The spiral guide block is inserted into the interior of the corresponding spiral guide groove.

[0021] The first clamping plate has a first countersunk hole, and a positioning post is rotatably arranged inside the first countersunk hole. A second storage groove is provided between the first countersunk hole and the two sets of storage holes, and a second pull rope is provided inside each of the second storage grooves.

[0022] The lower end of the positioning post is provided with a winding groove corresponding to the position of the second storage groove, and the two ends of the second pull rope are respectively connected to the inner wall of the winding groove and the end of the corresponding adjustment rod.

[0023] Furthermore, a scale plate is installed on the first clamping plate at the position corresponding to the positioning post, and an extension plate is installed on the positioning post at the position corresponding to the scale plate;

[0024] The upper end of the scale plate has multiple sets of circumferentially distributed scale positioning holes at the end position corresponding to the end position of the extension plate.

[0025] The end of the extension plate is provided with a third storage groove at the position corresponding to one of the set of scale positioning holes. A positioning block is inserted into the interior of the third storage groove, and a fourth return spring is provided between the end of the positioning block and the top of the interior of the third storage groove. The positioning block is elastically inserted into the interior of one of the set of scale positioning holes through the fourth return spring.

[0026] The extension plate is provided with a first insert rod at the position corresponding to the positioning block. One end of the first insert rod passes through the extension plate and is connected to the upper end of the positioning block.

[0027] Furthermore, the first clamping plate is provided with at least one set of first storage slots at the position corresponding to the second clamping plate, a second insert rod is inserted into the inside of the first storage slot, and a first reset spring is provided between the top end of the inside of the first storage slot and the upper end of the second insert rod.

[0028] The second clamping plate has a slot at the position corresponding to the second insertion rod, and the second insertion rod is elastically inserted into the slot by the first return spring.

[0029] Furthermore, a lever is hinged to the outer surface of the positioning post, and a first through hole is opened on the positioning post and the first clamping plate at the positions corresponding to the lever and the first storage groove. A first pull rope is provided inside the first through hole, and the two ends of the first pull rope are respectively connected to the upper end of the second insertion rod and the side wall of the lever.

[0030] Furthermore, a second storage groove is provided inside the positioning post corresponding to the position of the lever block. A support block is provided inside the second storage groove, and a second return spring is provided between the side wall of the support block and the inner wall of the second storage groove. The support block is in elastic contact with the side wall of the lever block through the second return spring.

[0031] The upper end of the positioning post is provided with a groove corresponding to the position of the abutment block. A pull block is inserted into the groove, and the bottom of the pull block is set as an inclined surface corresponding to the contact position of the abutment block.

[0032] Compared with the prior art, the beneficial effects of the present invention are:

[0033] 1. This invention uses an extension plate to drive a positioning column to rotate. When the positioning column rotates, it winds up a second pull rope. After the second pull rope is wound up, it drives an adjusting rod to move towards the inside of the receiving hole. During the movement of the adjusting rod, it drives a spiral guide block to move along the inside of the spiral guide groove. At this time, the second clamping plate rotates relative to the first clamping plate under the cooperation of the spiral guide groove and the spiral guide block, realizing the adjustment of the angle between the first clamping plate and the second clamping plate to match the shape of the stainless steel clamp. Then, through the cooperation of the double-headed screw and the guide block, the distance between the two sets of first clamping plates and second clamping plates is coarsely adjusted. Then, through the cooperation of the double-headed motor and the transmission screw, the distance between the two sets of first clamping plates and second clamping plates is finely adjusted, so as to accurately position and fix the stainless steel clamp, reduce the adjustment time of the tooling, and improve production efficiency.

[0034] 2. A cleaning collar is provided on the side of the guide block. When the two sets of clamping seats move closer or further apart, the cleaning collar can move along the surface of the double-ended lead screw to clean the welding slag and dust adhering to the surface of the double-ended lead screw, preventing welding slag and dust from entering the connection between the double-ended lead screw and the guide block and causing jamming. Attached Figure Description

[0035] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0036] Figure 2 This is a schematic diagram showing the connection between the rotating platform and the clamping seat structure of the present invention;

[0037] Figure 3 for Figure 2Enlarged schematic diagram of the structure at point A in the middle;

[0038] Figure 4 This is a schematic diagram showing the connection between the clamping base and the clamping assembly structure of the present invention;

[0039] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B;

[0040] Figure 6 for Figure 4 Enlarged schematic diagram of the structure at point C;

[0041] Figure 7 This is a cross-sectional schematic diagram of the connection between the first clamping plate and the second clamping plate of the present invention;

[0042] Figure 8 for Figure 7 Enlarged schematic diagram of the structure at point D;

[0043] Figure 9 for Figure 7 Enlarged schematic diagram of the structure at point E in the middle;

[0044] Figure 10 This is a cross-sectional schematic diagram of the connection between the positioning post and the supporting block structure of the present invention;

[0045] Figure 11 for Figure 7 Enlarged schematic diagram of the structure at point F;

[0046] Figure 12 This is a cross-sectional view of the connection between the extension plate and the insertion rod structure of the present invention;

[0047] Figure 13 This is a schematic diagram of the second clamping plate structure of the present invention;

[0048] Figure 14 for Figure 13 Enlarged schematic diagram of the structure at point G in the middle;

[0049] Figure 15 This is a schematic diagram of the adjusting rod structure of the present invention.

[0050] In the diagram: 1. Machining table; 2. Rotary platform; 3. Clamping seat; 4. Welding robotic arm; 5. Guide groove; 6. Motor; 7. Double-ended lead screw; 8. Cleaning collar; 9. Guide block; 10. Double-ended motor; 11. First transmission shaft; 12. First bevel gear; 13. Second bevel gear; 14. Transmission lead screw; 15. Fixing block; 16. First clamping plate; 17. Second clamping plate; 18. Connecting block; 19. Guide rod; 20. Scale plate; 21. Positioning pin; 22. Pull block; 23. Push block; 24. Extension plate; 25. First insertion rod; 26. Scale. Positioning hole 26, slot 27, second insert rod 28, first storage groove 29, first return spring 30, first through hole 31, first pull rope 32, first countersunk hole 33, winding groove 34, second pull rope 35, second storage groove 36, supporting block 37, groove 38, second return spring 39, adjusting rod 40, storage hole 41, third return spring 42, spiral guide groove 43, spiral guide block 44, third storage groove 45, fourth return spring 46, positioning block 47, second countersunk hole 48. Detailed Implementation

[0051] To more clearly illustrate the overall concept of the present invention, a detailed description will be provided below with reference to the accompanying drawings and examples.

[0052] Example 1:

[0053] Please see Figures 1 to 15 The present invention provides a technical solution: a stainless steel clamp arc welding mechanism, comprising a processing table 1, wherein at least one set of welding robotic arms 4 are mounted on the processing table 1, characterized in that it further comprises:

[0054] A rotary platform 2 is rotatably mounted on the processing table 1 at a position corresponding to the welding robotic arm 4, and two sets of symmetrically distributed clamping seats 3 are provided on the rotary platform 2.

[0055] A drive assembly is used to drive the two sets of clamping seats 3 to move closer or further apart from each other. The drive assembly includes a double-ended lead screw 7 rotatably mounted on the rotary platform 2. The double-ended lead screw 7 is screwed to the clamping seat 3.

[0056] A clamping assembly is installed on one side wall of the two sets of clamping seats 3 that are close to each other. The clamping assembly includes a first clamping plate 16 and a second clamping plate 17 that are rotatably connected. An adjustment assembly is provided on the first clamping plate 16 at a position corresponding to the second clamping plate 17 to adjust the included angle between the first clamping plate 16 and the second clamping plate 17.

[0057] The angle between the first clamping plate 16 and the second clamping plate 17 is adjusted by the adjustment component, so that the clamping component can be adapted to various irregular stainless steel clamps. Then, with the cooperation of the drive component, the irregular stainless steel clamp is clamped. After clamping, the stainless steel clamp can be welded by the welding robot arm 4.

[0058] Example 2:

[0059] like Figures 2-3 As shown, the stainless steel clamp arc welding mechanism disclosed in Embodiment 2 of the present invention has a structure that is basically the same as that in Embodiment 1, except that:

[0060] The upper end of the rotary platform 2 is provided with a guide groove 5 at the center position. A motor 6 is installed inside one end of the guide groove 5, and a double-headed lead screw 7 is connected to the output end of the motor 6.

[0061] Two sets of guide blocks 9 are screwed onto the outer surface of the double-ended lead screw 7 at positions corresponding to the two sets of clamping seats 3. The two sets of guide blocks 9 are respectively connected to the lower ends of the two sets of clamping seats 3. The two sets of clamping seats 3 move closer or further apart to each other through the cooperation of the guide blocks 9 and the double-ended lead screw 7.

[0062] Cleaning collars 8 are installed on the sidewalls of the two sets of guide blocks 9 at positions corresponding to the double-ended lead screw 7, and the cleaning collars 8 are sleeved on the outer surface of the double-ended lead screw 7.

[0063] Through the cooperation of motor 6 and double-headed lead screw 7, the two sets of guide blocks 9 are brought closer or further apart, thereby bringing the two sets of clamping seats 3 closer or further apart. When the clamping seats 3 are close together, they can drive the clamping components to move closer together, thereby clamping the irregular stainless steel clamp.

[0064] Example 3:

[0065] like Figures 4-5 As shown, the stainless steel clamp arc welding mechanism disclosed in Embodiment 3 of the present invention has a structure that is basically the same as that in Embodiment 2, except that:

[0066] The upper end of the clamping base 3 is equipped with two sets of symmetrically distributed fixing blocks 15. The interior of each set of fixing blocks 15 is rotatably equipped with a transmission screw 14, and the outer surface of each transmission screw 14 is screwed with a connecting block 18. The clamping assembly is disposed between the two sets of connecting blocks 18.

[0067] Guide rods 19 are provided on both sides of the first clamping plate 16 and between the side walls of the corresponding two sets of connecting blocks 18;

[0068] Each of the clamping seats 3 is equipped with a dual-head motor 10 at a position corresponding to the transmission screw 14, and the two output ends of the dual-head motor 10 are connected to the first transmission shaft 11.

[0069] Each of the two sets of first drive shafts 11 has a first bevel gear 12 installed at the end away from the dual-head motor 10. Each of the two sets of drive screws 14 has a second bevel gear 13 installed at the position corresponding to the first bevel gear 12. The first bevel gear 12 and the second bevel gear 13 mesh with each other. The two sets of first clamping plates 16 move closer or further apart from each other through the cooperation of the drive screws 14, the first bevel gear 12, and the second bevel gear 13.

[0070] The dual-head motor 10 and the first transmission shaft 11 work together to drive the transmission screw 14 to rotate. When the transmission screw 14 rotates, the connection block 18 and the guide rod 19 work together to achieve fine adjustment of the distance between the two sets of first clamping plates 16 and second clamping plates 17, ensuring clamping force and preventing clamping from being too loose or too tight.

[0071] Example 4:

[0072] like Figures 6-7 as well as Figures 11-15 As shown, the stainless steel clamp arc welding mechanism disclosed in Embodiment 4 of the present invention has a structure that is basically the same as that in Embodiment 3, except that:

[0073] The adjustment assembly includes two sets of second countersunk holes 48 formed on the second clamping plate 17, and the first clamping plate 16 is provided with a storage hole 41 at the position corresponding to the two sets of second countersunk holes 48.

[0074] An adjusting rod 40 is inserted into the interior of each of the aforementioned storage holes 41. A third return spring 42 is provided between the end of each adjusting rod 40 and the inner wall of the corresponding storage hole 41. The adjusting rod 40 is elastically inserted into the interior of the corresponding second countersunk hole 48 through the third return spring 42.

[0075] Each of the second countersunk holes 48 has a spiral guide groove 43 on its inner wall, and each of the adjusting rods 40 has a spiral guide block 44 installed on its outer surface at a position corresponding to the second countersunk hole 48. The spiral guide block 44 is inserted into the interior of the corresponding spiral guide groove 43.

[0076] The first clamping plate 16 has a first countersunk hole 33, and a positioning post 21 is rotatably arranged inside the first countersunk hole 33. A second storage groove 36 is provided between the first countersunk hole 33 and the two sets of storage holes 41. A second pull rope 35 is provided inside each of the second storage grooves 36.

[0077] The lower end of the positioning post 21 is provided with a winding groove 34 corresponding to the position of the second storage groove 36, and the two ends of the second pull rope 35 are respectively connected to the inner wall of the winding groove 34 and the end corresponding to the adjusting rod 40.

[0078] The first clamping plate 16 is equipped with a scale plate 20 at the position corresponding to the positioning post 21, and the positioning post 21 is equipped with an extension plate 24 at the position corresponding to the scale plate 20;

[0079] The upper end of the scale plate 20 is provided with a plurality of circumferentially distributed scale positioning holes 26 at the end position corresponding to the end position of the extension plate 24.

[0080] The end of the extension plate 24 is provided with a third storage groove 45 at the position corresponding to one of the set of scale positioning holes 26. A positioning block 47 is inserted into the interior of the third storage groove 45, and a fourth return spring 46 is provided between the end of the positioning block 47 and the top of the interior of the third storage groove 45. The positioning block 47 is elastically inserted into the interior of one of the set of scale positioning holes 26 through the fourth return spring 46.

[0081] The extension plate 24 is provided with a first insertion rod 25 at the position corresponding to the positioning block 47. One end of the first insertion rod 25 passes through the extension plate 24 and is connected to the upper end of the positioning block 47.

[0082] The extension plate 24 drives the positioning column 21 to rotate. When the positioning column 21 rotates, it winds up the second pull rope 35. After the second pull rope 35 is wound up, it drives the adjusting rod 40 to move toward the inside of the receiving hole 41. During the movement, the adjusting rod 40 drives the spiral guide block 44 to move along the inside of the spiral guide groove 43. At this time, the second clamping plate 17 rotates relative to the first clamping plate 16 under the cooperation of the spiral guide groove 43 and the spiral guide block 44, so as to adjust the angle between the first clamping plate 16 and the second clamping plate 17 to match the shape of the stainless steel clamp. After the angle adjustment is completed, the rotation angle of the extension plate 24 is limited by the cooperation of the elastically set positioning block 47 and the scale positioning hole 26.

[0083] The opening of the scale positioning hole 26 can be set such that the included angle between two adjacent sets of scale positioning holes 26 is 1°. The included angle between the first clamping plate 16 and the second clamping plate 17 is determined according to the position of the scale positioning hole 26 into which the positioning block 47 is inserted.

[0084] Example 5:

[0085] like Figures 7-10 As shown, the stainless steel clamp arc welding mechanism disclosed in Embodiment 5 of the present invention has a structure that is basically the same as that in Embodiment 4, except that:

[0086] The first clamping plate 16 is provided with at least one set of first storage slots 29 at the position corresponding to the second clamping plate 17. A second insertion rod 28 is inserted into the inside of the first storage slot 29, and a first return spring 30 is provided between the top end of the inside of the first storage slot 29 and the upper end of the second insertion rod 28.

[0087] The second clamping plate 17 has a slot 27 at the position corresponding to the second insertion rod 28, and the second insertion rod 28 is elastically inserted into the slot 27 by the first return spring 30;

[0088] The outer surface of the positioning post 21 is hinged with a lever 23, and the positioning post 21 and the first clamping plate 16 are provided with a first through hole 31 at the positions of the lever 23 and the first storage groove 29 respectively. A first pull rope 32 is provided inside the first through hole 31, and the two ends of the first pull rope 32 are respectively connected to the upper end of the second insertion rod 28 and the side wall of the lever 23.

[0089] The positioning post 21 has a second storage groove 36 at the position corresponding to the toggle block 23. The second storage groove 36 has a support block 37 inside, and a second return spring 39 is provided between the side wall of the support block 37 and the inner wall of the second storage groove 36. The support block 37 is in elastic contact with the side wall of the toggle block 23 through the second return spring 39.

[0090] The upper end of the positioning post 21 is provided with a groove 38 corresponding to the position of the abutment block 37. A pull block 22 is inserted into the groove 38. The bottom of the pull block 22 is set as an inclined surface corresponding to the contact position of the abutment block 37.

[0091] When there is no need to adjust the angle between the first clamping plate 16 and the second clamping plate 17, the elastically set second insert 28 is inserted into the slot 27. At this time, the first clamping plate 16 and the second clamping plate 17 are limited to rotation. When adjustment is required, the pull block 22 is pressed down first. When the pull block 22 moves down, it squeezes the elastically set abutment block 37. The abutment block 37 abuts the lever block 23 outward, causing the lever block 23 to rotate outward. When the lever block 23 rotates, it drives the second insert 28 to move out of the slot 27 through the cooperation of the first pull rope 32, releasing the rotation limit between the first clamping plate 16 and the second clamping plate 17.

[0092] Specifically, when there is no need to adjust the angle between the first clamping plate 16 and the second clamping plate 17, the elastically set second insert rod 28 is inserted into the slot 27. At this time, the first clamping plate 16 and the second clamping plate 17 are limited to rotate. When welding of the stainless steel clamp is required, the motor 6 is started. Through the cooperation of the motor 6 and the double-headed screw 7, the two sets of guide blocks 9 are brought closer to each other, and then the two sets of clamping seats 3 are brought closer to each other. When the clamping seats 3 are close, they can drive the two sets of first clamping plates 16 and the two sets of second clamping plates 17 to be close. Then the double-headed motor 10 is started. Through the cooperation of the double-headed motor 10 and the first transmission shaft 11, the transmission screw 14 is driven to rotate. When the transmission screw 14 rotates, through the cooperation of the connecting block 18 and the guide rod 19, the distance between the two sets of first clamping plates 16 and the second clamping plate 17 can be finely adjusted to ensure the clamping force of the stainless steel clamp and prevent the clamping from being too loose or too tight. After clamping is completed, welding can be performed by the welding robot arm 4.

[0093] When welding the irregularly shaped stainless steel clamp, first press down on the pull block 22. As the pull block 22 moves down, it squeezes the elastically set abutment block 37. The abutment block 37 abuts against the lever block 23 outward, causing the lever block 23 to rotate outward. When the lever block 23 rotates, it drives the second insertion rod 28 to move out of the slot 27 through the cooperation of the first pull rope 32, releasing the rotation limit between the first clamping plate 16 and the second clamping plate 17. Then, lift the first insertion rod 25. When the positioning block 47 moves out of the scale positioning hole 26, the angle between the first clamping plate 16 and the second clamping plate 17 can be adjusted by rotating the extension plate 24. When rotating the extension plate 24, it drives the positioning post 21. When the positioning column 21 rotates, it winds up the second pull rope 35. After the second pull rope 35 is wound up, it drives the adjusting rod 40 to move towards the inside of the receiving hole 41. During the movement, the adjusting rod 40 drives the spiral guide block 44 to move along the inside of the spiral guide groove 43. At this time, the second clamping plate 17 rotates relative to the first clamping plate 16 under the cooperation of the spiral guide groove 43 and the spiral guide block 44, so as to adjust the angle between the first clamping plate 16 and the second clamping plate 17 to match the shape of the stainless steel clamp. After the angle adjustment is completed, the rotation angle of the extension plate 24 is limited by the cooperation of the elastically set positioning block 47 and the scale positioning hole 26.

[0094] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A stainless steel clamp arc welding mechanism, comprising a processing table (1), wherein at least one set of welding robotic arms (4) is mounted on the processing table (1), characterized in that, Also includes: A rotary platform (2) is rotatably mounted on the processing table (1) at a position corresponding to the welding robot arm (4), and two sets of symmetrically distributed clamping seats (3) are provided on the rotary platform (2). A drive assembly for driving the two sets of clamping seats (3) to move closer or further apart from each other, the drive assembly including a double-ended lead screw (7) rotatably mounted on the rotary platform (2), the double-ended lead screw (7) being screwed to the clamping seats (3); The clamping assembly is installed on the side wall of the two sets of clamping seats (3) that are close to each other. The clamping assembly includes a first clamping plate (16) and a second clamping plate (17) that are rotatably connected. The first clamping plate (16) is provided with an adjustment component at the position corresponding to the second clamping plate (17) for adjusting the included angle between the first clamping plate (16) and the second clamping plate (17).

2. The stainless steel clamp arc welding mechanism according to claim 1, characterized in that, The upper end of the rotary platform (2) is provided with a guide groove (5), and a motor (6) is installed at one end of the guide groove (5). The output end of the motor (6) is connected to a double-headed lead screw (7). Two sets of guide blocks (9) are screwed onto the outer surface of the double-ended screw (7) at positions corresponding to the two sets of clamping seats (3). The two sets of guide blocks (9) are respectively connected to the lower ends of the two sets of clamping seats (3). The two sets of clamping seats (3) move closer or further apart from each other through the cooperation of the guide blocks (9) and the double-ended screw (7). Cleaning collars (8) are installed on the sidewalls of the two sets of guide blocks (9) at positions corresponding to the double-ended lead screw (7), and the cleaning collars (8) are fitted onto the outer surface of the double-ended lead screw (7).

3. The stainless steel clamp arc welding mechanism according to claim 1, characterized in that, The upper end of the clamping seat (3) is equipped with two sets of symmetrically distributed fixing blocks (15). The two sets of fixing blocks (15) are rotatably equipped with transmission screws (14), and the outer surface of each transmission screw (14) is screwed with a connecting block (18). The clamping assembly is located between the two sets of connecting blocks (18). Guide rods (19) are provided on both sides of the first clamping plate (16) and between the side walls of the corresponding two sets of connecting blocks (18).

4. The stainless steel clamp arc welding mechanism according to claim 3, characterized in that, Each of the clamping seats (3) is equipped with a double-headed motor (10) at the position corresponding to the transmission screw (14), and the two output ends of the double-headed motor (10) are connected to the first transmission shaft (11). Both sets of first drive shafts (11) are equipped with a first bevel gear (12) at the end away from the dual-head motor (10). Both sets of drive screws (14) are equipped with a second bevel gear (13) at the position corresponding to the first bevel gear (12). The first bevel gear (12) and the second bevel gear (13) mesh with each other. The two sets of first clamping plates (16) move closer or further away from each other through the cooperation of the drive screw (14), the first bevel gear (12), and the second bevel gear (13).

5. The stainless steel clamp arc welding mechanism according to claim 2, characterized in that, The adjustment assembly includes two sets of second countersunk holes (48) on the second clamping plate (17), and the first clamping plate (16) has a storage hole (41) at the position corresponding to the two sets of second countersunk holes (48). An adjusting rod (40) is inserted into the interior of each of the storage holes (41). A third return spring (42) is provided between the end of each adjusting rod (40) and the inner wall of the corresponding storage hole (41). The adjusting rod (40) is elastically inserted into the interior of the corresponding second countersunk hole (48) through the third return spring (42).

6. The stainless steel clamp arc welding mechanism according to claim 5, characterized in that, Each of the second countersunk holes (48) has a spiral guide groove (43) on its inner wall. Each of the adjusting rods (40) has a spiral guide block (44) installed on its outer surface at a position corresponding to the second countersunk hole (48). The spiral guide block (44) is inserted into the interior of the corresponding spiral guide groove (43). The first clamping plate (16) has a first countersunk hole (33), and a positioning post (21) is rotatably arranged inside the first countersunk hole (33). A second storage groove (36) is provided between the first countersunk hole (33) and the two sets of storage holes (41), and a second pull rope (35) is provided inside each of the second storage grooves (36). The lower end of the positioning post (21) is provided with a winding groove (34) corresponding to the position of the second storage groove (36), and the two ends of the second pull rope (35) are respectively connected to the inner wall of the winding groove (34) and the end of the adjusting rod (40).

7. The stainless steel clamp arc welding mechanism according to claim 6, characterized in that, The first clamping plate (16) is equipped with a scale plate (20) at the position corresponding to the positioning post (21), and the positioning post (21) is equipped with an extension plate (24) at the position corresponding to the scale plate (20). The upper end of the scale plate (20) is provided with a plurality of scale positioning holes (26) arranged in a circular pattern at the end position of the extension plate (24). The end of the extension plate (24) is provided with a third storage groove (45) at the position corresponding to one of the set of scale positioning holes (26). A positioning block (47) is inserted into the interior of the third storage groove (45), and a fourth return spring (46) is provided between the end of the positioning block (47) and the top of the interior of the third storage groove (45). The positioning block (47) is elastically inserted into the interior of one of the set of scale positioning holes (26) through the fourth return spring (46). The extension plate (24) is provided with a first insert rod (25) at the position corresponding to the positioning block (47). One end of the first insert rod (25) passes through the extension plate (24) and is connected to the upper end of the positioning block (47).

8. The stainless steel clamp arc welding mechanism according to claim 6, characterized in that, The first clamping plate (16) is provided with at least one set of first storage slots (29) at the position corresponding to the second clamping plate (17). A second insertion rod (28) is inserted into the inside of the first storage slot (29), and a first return spring (30) is provided between the top end of the inside of the first storage slot (29) and the upper end of the second insertion rod (28). The second clamping plate (17) has a slot (27) at the position corresponding to the second insert (28), and the second insert (28) is elastically inserted into the slot (27) by the first return spring (30).

9. The stainless steel clamp arc welding mechanism according to claim 8, characterized in that, The outer surface of the positioning post (21) is hinged with a lever (23), and the positioning post (21) and the first clamping plate (16) are provided with a first through hole (31) at the positions of the lever (23) and the first storage groove (29). A first pull rope (32) is provided inside the first through hole (31), and the two ends of the first pull rope (32) are respectively connected to the upper end of the second insertion rod (28) and the side wall of the lever (23).

10. The stainless steel clamp arc welding mechanism according to claim 9, characterized in that, The positioning post (21) has a second storage groove (36) at the position corresponding to the toggle block (23). The second storage groove (36) has a support block (37) inside, and a second return spring (39) is provided between the side wall of the support block (37) and the inner wall of the second storage groove (36). The support block (37) is in elastic contact with the side wall of the toggle block (23) through the second return spring (39). The upper end of the positioning post (21) is provided with a groove (38) corresponding to the position of the abutment block (37). A pull block (22) is inserted into the groove (38). The bottom of the pull block (22) is set as an inclined surface corresponding to the contact position of the abutment block (37).

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