Intelligent sheet metal welding system and welding method

Abstract

The present invention discloses an intelligent sheet metal welding system and welding method, which relates to the technical field of sheet metal welding, including a machine body, a transmission component and a clamping component, wherein the machine body is provided with a first connecting block, the bottom of the first connecting block is spirally slidably connected to a second connecting block, the bottom of the second connecting block is provided with a welding head, one side of the second connecting block is slidably connected to a connecting plate, a clamping block is slidably connected inside the connecting plate, the bottom of the second connecting block is rotatably connected to a support plate, the transmission component is driven by the spiral sliding of the second connecting block to make the connecting plate move vertically downward, and the clamping component is driven by the downward movement of the connecting plate to make the clamping block clamp the welding rod. In the process of spiral repair welding of the welding head and the welding rod, the transmission component moves the welding rod on the connecting plate downward to avoid the consumption of the welding rod being out of sync with the welding head, and in the process of the connecting plate moving downward, the clamping component automatically clamps the welding rod to improve the safety of personnel.

Description

Technical Field

[0001] The invention relates to the technical field of sheet metal welding, and in particular to an intelligent sheet metal welding system and a welding method. Background Art

[0002] In the sheet metal manufacturing industry, welding is a common connection method that is widely used. During daily use, sheet metal may be damaged and need to be repaired and re-welded.

[0003] For example, the Chinese patent with publication number CN221773745U and titled "A Convenient and Efficient Sheet Metal Welding Processing Equipment" includes a brake assembly; it also includes a rotating assembly, a mounting assembly, a laser welding assembly, a thin cover body and a thin tube body. The utility model can clamp and fix the thin tube body by opening the first electric cylinder to move the clamping block in the direction where the fixed block is located. When the fixed block rotates, the clamping block will drive the thin tube body to rotate, thereby realizing the synchronous movement of the thin tube body and the thin cover body, thereby facilitating the circumferential welding of the contact seam between the thin tube body and the thin cover body, and facilitating the rapid limiting placement of the welded parts, thereby solving the above-mentioned technical problems.

[0004] Although the convenient and efficient sheet metal welding processing equipment in the above patent is practical and convenient, it also has its shortcomings. When repairing sheet metal with large weld holes, a welding gun and welding rod are required to perform spiral repair welding on the weld holes, which is dangerous to the operator. At the same time, since the welding rod will be continuously consumed, the welding rod needs to be continuously advanced, which is inconvenient to operate. Summary of the invention

[0005] The purpose of the present invention is to provide an intelligent sheet metal welding system and welding method to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: the multifunctional sheet metal welding equipment comprises a body, a transmission assembly and a clamping assembly, the body is provided with a first connecting block, the bottom of the first connecting block is spirally slidably connected to the second connecting block, the bottom of the second connecting block is provided with a welding head, one side of the second connecting block is slidably connected to a connecting plate for placing a welding rod, a clamping block is slidably connected inside the connecting plate, the bottom of the second connecting block is rotatably connected to a support plate for supporting the welding rod, the transmission assembly is driven by the spiral sliding of the second connecting block to make the connecting plate move vertically downward, and the clamping assembly is driven by the downward movement of the connecting plate to enable the clamping block to clamp the welding rod.

[0007] Furthermore, a fixing plate is fixedly provided at the bottom of the first connecting block, and a first annular groove, an oblique groove and a second annular groove are provided in the fixing plate, and the first annular groove is communicated with the second annular groove through the oblique groove, and a sliding block is provided at the top of the second connecting block, and the sliding block is slidably connected and cooperated with the first annular groove, the oblique groove and the second annular groove in sequence, and a rotating rod is rotatably connected to the fixing plate, and an elastic unit is provided between the rotating rod and the second connecting block.

[0008] Furthermore, the elastic unit includes a telescopic rod and a third spring sleeved on the telescopic rod, the telescopic rod is arranged between the second connecting block and the rotating rod, and two ends of the third spring are fixedly connected to the second connecting block and the rotating rod respectively.

[0009] Further, the transmission assembly includes a first incomplete bevel gear ring, a second incomplete bevel gear ring, a first bevel gear, a second bevel gear meshing with the first bevel gear, and a screw rod, the first incomplete bevel gear ring is arranged between the first annular groove and the second annular groove, the second incomplete bevel gear ring is arranged between the second annular groove and the rotating rod, the first bevel gear is rotatably connected to the side of the second connecting block close to the rotating rod through the second rotating shaft, the first bevel gear is meshed with the first incomplete bevel gear ring and the second incomplete bevel gear ring in turn for transmission, the second bevel gear is rotatably connected in the second connecting block, the screw rod is coaxially fixedly connected to the bottom end of the second bevel gear, the connecting plate is threadedly connected to the screw rod, a first sliding groove is opened in the second connecting block, and the connecting plate is slidably connected in the first sliding groove.

[0010] Furthermore, the clamping assembly includes a pushing plate, a sliding hole is provided in the connecting plate, the pushing plate is slidably connected in the sliding hole, the top of the pushing plate is inclined, the bottom of the connecting plate is slidably abutted with the top of the pushing plate, and a sliding rod is fixedly provided on one side of the clamping block close to the pushing plate, and one side of the pushing plate is abutted with one end of the sliding rod.

[0011] Furthermore, a first rotating shaft is provided in the second connecting block, the supporting plate is rotatably sleeved on the first rotating shaft, and a torsion spring is provided between the first rotating shaft and the supporting plate.

[0012] Furthermore, the connecting plate is provided with a through hole for positioning the welding rod, a third sliding groove is provided between the through hole and the sliding hole, the clamping block and the sliding rod are both slidably connected in the third sliding groove, a second spring is sleeved on the sliding rod, and two ends of the second spring are respectively fixedly connected to the clamping block and the groove wall of the third sliding groove.

[0013] Furthermore, a second slide groove communicated with the first slide groove is opened in the second connecting block, a sliding plate is provided on the top of the push plate, a fixing rod is fixedly provided in the second connecting block, the sliding plate is slidably sleeved on the fixing rod, a first spring is sleeved on the fixing rod, and two ends of the first spring are respectively fixedly connected to the sliding plate and the groove wall of the second slide groove.

[0014] Furthermore, a side of the clamping block close to the welding rod is arc-shaped.

[0015] The present invention also provides a welding method for an intelligent sheet metal welding system, the welding method comprising the following steps:

[0016] S1. First, place the welding rod in the connecting plate through the through hole, and at the same time, the bottom of the welding rod is supported by the supporting plate, the motor drives the rotating rod to rotate, and the second connecting block is driven to rotate synchronously through the third spring and the telescopic rod, the first bevel gear is meshed with the first incomplete bevel gear ring and the second incomplete bevel gear ring in turn, and the meshing transmission with the second bevel gear drives the screw to rotate, so that the screw spirally drives the connecting plate, and the connecting plate moves toward the welding head along the length direction of the screw, and the connecting plate has a first stroke and a second stroke in the process of moving toward the welding head. In the first stroke, the bottom of the connecting plate slides and abuts against the top of the pushing plate, so that the pushing plate moves toward the welding rod, and the sliding rod drives the clamping block to clamp the welding rod, so that automatic clamping can be achieved;

[0017] S2. In the second stroke, the second connecting block spirally slides along the trajectory of the first annular groove, the inclined groove and the second annular groove with the slider, so as to repair the welding hole on the sheet metal and improve the repair welding effect;

[0018] S3. At the same time, in the second stroke, the push plate is always in contact with the slide rod, so that the clamping block always clamps the welding rod to prevent the welding rod from falling, thereby improving the safety of the staff and making the welding rods that are constantly consumed on the connecting plate progress synchronously to ensure the welding effect.

[0019] Compared with the prior art, the beneficial effects provided by the present invention are as follows: the multifunctional sheet metal welding equipment first places the welding rod into the connecting plate, and the support plate supports the welding rod to prevent it from falling; in the process of the welding head and the welding rod sliding synchronously in a spiral manner to repair the welding hole of the sheet metal, the welding rod on the connecting plate is driven downward by the transmission component to avoid the consumption of the welding rod being out of sync with the welding head, which affects the welding effect; and in the process of the connecting plate moving downward, the clamping block is driven by the clamping component to clamp the welding rod, and there is no need to manually advance the welding rod, thereby improving the safety of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0022] Figure 2 A front view of the overall structure provided by an embodiment of the present invention;

[0023] Figure 3 for Figure 2 Sectional view at AA in the middle;

[0024] Figure 4 for Figure 3 Enlarged view of point C in the middle;

[0025] Figure 5 for Figure 4 Sectional view at the middle BB;

[0026] Figure 6 A schematic diagram of a local structure provided by an embodiment of the present invention;

[0027] Figure 7 A left view of the overall structure provided by an embodiment of the present invention;

[0028] Figure 8 for Figure 7 Enlarged view of point D in the middle.

[0029] Explanation of the accompanying drawings: 1. body; 2. first connecting block; 3. motor; 4. rotating rod; 5. fixing plate; 6. first ring groove; 7. second ring groove; 8. inclined groove; 9. first incomplete bevel gear ring; 10. second incomplete bevel gear ring; 11. sliding block; 12. second connecting block; 13. first bevel gear; 14. second bevel gear; 15. screw rod; 16. first slide groove; 17. connecting plate; 18. first rotating shaft; 19. torsion spring; 20. supporting plate; 21. pushing plate; 22. fixing rod; 23. first spring; 24. second slide groove; 25. sliding rod; 26. sliding plate; 27. second spring; 28. third slide groove; 29. ​​clamping block; 30. welding rod; 31. telescopic rod; 32. third spring; 33. welding head; 34. second rotating shaft. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] See also Figure 1-8A technical solution provided by an embodiment of the present invention: the multifunctional sheet metal welding equipment includes a body 1, a transmission assembly and a clamping assembly, the body 1 is provided with a first connecting block 2, the bottom of the first connecting block 2 is spirally slidably connected to the second connecting block 12, the bottom of the second connecting block 12 is provided with a welding head 33, one side of the second connecting block 12 is slidably connected to a connecting plate 17 for placing a welding rod 30, a clamping block 29 is slidably connected in the connecting plate 17, and the bottom of the second connecting block 12 is rotatably connected to a support plate 20 for supporting the welding rod 30, the transmission assembly is driven by the spiral sliding of the second connecting block 12 to make the connecting plate 17 move vertically downward, and the clamping assembly is driven by the downward movement of the connecting plate 17 to make the clamping block 29 clamp the welding rod 30, specifically, a motor 3 is provided in the first connecting block 2, the output end of the motor 3 is coaxially fixedly connected to the rotating rod 4, the motor 3 drives the rotating rod 4 to rotate relative to the fixed plate 5, so as to realize the spiral welding of the welding head 33 and the welding rod 30.

[0032] As a preferred technical solution, a fixing plate 5 is fixedly provided at the bottom of the first connecting block 2, and a first annular groove 6, an oblique groove 8 and a second annular groove 7 are provided in the fixing plate 5. The first annular groove 6 is communicated with the second annular groove 7 through the oblique groove 8. A slider 11 is provided at the top of the second connecting block 12, and the slider 11 is slidably connected and cooperated with the first annular groove 6, the oblique groove 8 and the second annular groove 7 in sequence. A rotating rod 4 is rotatably connected to the fixing plate 5, and an elastic unit is provided between the rotating rod 4 and the second connecting block 12. Specifically, the elastic unit includes a telescopic rod 31 and a third spring 32 sleeved on the telescopic rod 31. The telescopic rod 31 is arranged between the second connecting block 12 and the rotating rod 4, and the two ends of the third spring 32 are fixedly connected to the second connecting block 12 and the rotating rod 4 respectively. The first annular groove 6, the oblique groove 8 and the second annular groove 7 together form a spiral track, rotate the rotating rod 4, drive the second connecting block 12 to rotate synchronously through the third spring 32 and the telescopic rod 31, and the second connecting block 12 spirally slides along the trajectory of the first annular groove 6, the inclined groove 8 and the second annular groove 7 with the slider 11, so as to realize the repair welding of the welding hole on the sheet metal, improve the repair welding effect, and through the pulling force of the third spring 32, the slider 11 slides from the first annular groove 6 through the inclined groove 8 to the second annular groove 7, and when the rotating rod 4 is reversed, the slider 11 can slide in the opposite direction along the inclined groove 8 to the first slide groove 16. Preferably, a plurality of annular grooves with decreasing radius and a plurality of inclined grooves 8 can be provided, so that the whole is spiral, which can adapt to the repair welding of welding holes of different sizes, increases adaptability, and can weld the end faces of pipe fittings of different radius sizes.

[0033] As a preferred technical solution, the transmission assembly includes a first incomplete bevel gear ring 9, a second incomplete bevel gear ring 10, a first bevel gear 13, a second bevel gear 14 meshing with the first bevel gear 13, and a screw 15. The first incomplete bevel gear ring 9 is arranged between the first annular groove 6 and the second annular groove 7, the second incomplete bevel gear ring 10 is arranged between the second annular groove 7 and the rotating rod 4, the first bevel gear 13 is rotatably connected to the side of the second connecting block 12 close to the rotating rod 4 through the second rotating shaft 34, the first bevel gear 13 is meshed with the first incomplete bevel gear ring 9 and the second incomplete bevel gear ring 10 for transmission in turn, the second bevel gear 14 is rotatably connected in the second connecting block 12, the screw 15 is coaxially fixedly connected to the bottom end of the second bevel gear 14, the connecting plate 17 is screwed to the screw 15, and the second connecting A first slide groove 16 is provided in the connecting block 12, and the connecting plate 17 is slidably connected in the first slide groove 16. Specifically, when the second connecting block 12 spirally slides along the trajectory of the first annular groove 6, the inclined groove 8 and the second annular groove 7 with the slider 11, the first bevel gear 13 meshes with the first incomplete bevel gear ring 9 and the second incomplete bevel gear ring 10 in turn, and drives the screw 15 to rotate through the meshing transmission with the second bevel gear 14. At the same time, the first slide groove 16 is adapted to the size of the connecting plate 17, and the first slide groove 16 limits the circumferential rotation of the connecting plate 17, so that the screw 15 spirally drives the connecting plate 17, and the connecting plate 17 moves toward the welding head 33 along the length direction of the screw 15, so that the welding rod 30 that is continuously consumed on the connecting plate 17 is synchronously progressive to ensure the welding effect.

[0034] As a preferred technical solution, the clamping assembly includes a push plate 21, a sliding hole is provided in the connecting plate 17, the push plate 21 is slidably connected in the sliding hole, the top of the push plate 21 is inclined, the bottom of the connecting plate 17 is slidably abutted with the top of the push plate 21, and the clamping block 29 is fixed with a slide rod 25 on one side close to the push plate 21, and one side of the push plate 21 is abutted with one end of the slide rod 25. Specifically, the welding rod 30 can be placed in the connecting plate 17, and at the same time, the bottom is supported by the support plate 20, and when the connecting plate 17 is facing The process of moving toward the welding head 33 has a first stroke and a second stroke in sequence. In the first stroke, the bottom of the connecting plate 17 slides and abuts against the top of the pushing plate 21, so that it is pushed toward the welding rod 30, and the clamping block 29 is driven by the sliding rod 25 to clamp the welding rod 30, so that automatic clamping can be achieved. When the welding rod 30 is clamped, the bottom end of the welding rod 30 is aligned with the welding head 33, and in the second stroke, the pushing plate 21 is always in abutment with the sliding rod 25, so that the clamping block 29 always clamps the welding rod 30 to prevent the welding rod 30 from falling.

[0035] As a preferred technical solution, a first rotating shaft 18 is provided in the second connecting block 12, and a support plate 20 is rotatably sleeved on the first rotating shaft 18. A torsion spring 19 is provided between the first rotating shaft 18 and the support plate 20. Specifically, when the clamping block 29 clamps the welding rod 30, it drives the welding rod 30 to move, and the welding rod 30 abuts against the support plate 20, so that the support plate 20 rotates, and the support plate 20 no longer blocks the movement of the welding rod 30. The torsion spring 19 enables the support plate 20 to be reset to its initial state. Preferably, the support plate 20 can block the spattered welding slag to a certain extent to avoid the welding slag splashing.

[0036] As a preferred technical solution, the connecting plate 17 is provided with a through hole for positioning the welding rod 30, and a third slide groove 28 is provided between the through hole and the slide hole, the clamping block 29 and the slide rod 25 are both slidably connected in the third slide groove 28, and a second spring 27 is sleeved on the slide rod 25, and the two ends of the second spring 27 are respectively fixedly connected to the clamping block 29 and the groove wall of the third slide groove 28. Specifically, the welding rod 30 passes through the through hole, and the clamping block 29 moves toward the through hole to clamp the welding rod 30, and the second spring 27 drives the clamping block 29 to move in the opposite direction when the connecting plate 17 is reset to the initial state, so as to contact and clamp the welding rod 30, so as to replace the welding rod 30.

[0037] As a preferred technical solution, a second slide groove 24 communicating with the first slide groove 16 is opened in the second connecting block 12, a sliding plate 26 is provided on the top of the push plate 21, a fixed rod 22 is fixedly provided in the second connecting block 12, the sliding plate 26 is slidably sleeved on the fixed rod 22, a first spring 23 is sleeved on the fixed rod 22, and the two ends of the first spring 23 are respectively fixedly connected to the sliding plate 26 and the groove wall of the second slide groove 24. Specifically, the first spring 23 can drive the sliding plate 26 to reset to the initial state, and at the same time drive the push plate 21 to move in the opposite direction, thereby releasing the abutment between the push plate 21 and the sliding rod 25.

[0038] As a preferred technical solution, the side of the clamping block 29 close to the welding rod 30 is arc-shaped. Specifically, the arc-shaped setting can adapt to different specifications of the welding rod 30, thereby increasing the applicability of the device.

[0039] The present invention also provides a welding method for an intelligent sheet metal welding system, the welding method comprising the following steps:

[0040] S1. First, place the welding rod 30 in the connecting plate 17 through the through hole, and at the same time, the bottom of the welding rod 30 is supported by the supporting plate 20. The motor 3 drives the rotating rod 4 to rotate, and drives the second connecting block 12 to rotate synchronously through the third spring 32 and the telescopic rod 31. The first bevel gear 13 meshes with the first incomplete bevel gear ring 9 and the second incomplete bevel gear ring 10 in turn, and drives the screw 15 to rotate through the meshing transmission with the second bevel gear 14, so that the screw 15 spirally drives the connecting plate 17. The connecting plate 17 moves toward the welding head 33 along the length direction of the screw 15. In the process of the connecting plate 17 moving toward the welding head 33, there are a first stroke and a second stroke in sequence. In the first stroke, the bottom of the connecting plate 17 slides and abuts against the top of the pushing plate 21, so that the pushing plate 21 moves toward the welding rod 30. The sliding rod 25 drives the clamping block 29 to clamp the welding rod 30, so that automatic clamping can be achieved.

[0041] S2. In the second stroke, the second connecting block 12 spirally slides along the trajectory of the first annular groove 6, the inclined groove 8 and the second annular groove 7 with the slider 11, so as to repair the welding hole on the sheet metal and improve the repair welding effect;

[0042] S3. At the same time, in the second stroke, the push plate 21 is always in contact with the slide bar 25, so that the clamping block 29 always clamps the welding rod 30 to prevent the welding rod 30 from falling, thereby improving the safety of the staff and making the welding rod 30 that is continuously consumed on the connecting plate 17 progress synchronously to ensure the welding effect.

[0043] Working principle: The multifunctional sheet metal welding equipment first places the welding rod 30 in the connecting plate 17 through the through hole, and at the same time, the bottom of the welding rod 30 is supported by the supporting plate 20, the motor 3 drives the rotating rod 4 to rotate, and drives the second connecting block 12 to rotate synchronously through the third spring 32 and the telescopic rod 31, and the second connecting block 12 spirally slides along the trajectory of the first annular groove 6, the inclined groove 8 and the second annular groove 7 with the slider 11, so as to realize the repair welding of the welding hole on the sheet metal, and improve the repair welding effect, the first bevel gear 13 meshes with the first incomplete bevel gear ring 9 and the second incomplete bevel gear ring 10 in turn, and drives the screw 15 to rotate through the meshing transmission with the second bevel gear 14, so that the screw 15 is spirally driven The connecting plate 17 moves toward the welding head 33 along the length direction of the screw rod 15, so that the welding rod 30 that is continuously consumed on the connecting plate 17 is synchronously advanced to ensure the welding effect. In the process of the connecting plate 17 moving toward the welding head 33, it has a first stroke and a second stroke in sequence. In the first stroke, the bottom of the connecting plate 17 slides and abuts against the top of the pushing plate 21, so that the pushing plate 21 moves toward the welding rod 30, and the clamping block 29 is driven by the sliding rod 25 to clamp the welding rod 30, which can realize automatic clamping. In the second stroke, the pushing plate 21 is always abutted against the sliding rod 25, so that the clamping block 29 always clamps the welding rod 30 to prevent the welding rod 30 from falling, thereby improving the safety of the staff.

[0044] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An intelligent sheet metal welding system, comprising a body (1), wherein a first connecting block (2) is provided on the body (1), wherein the bottom of the first connecting block (2) is spirally slidably connected to a second connecting block (12), wherein a welding head (33) is provided at the bottom of the second connecting block (12), wherein a connecting plate (17) for placing a welding rod (30) is slidably connected to one side of the second connecting block (12), wherein a clamping block (29) is slidably connected inside the connecting plate (17), wherein a supporting plate (20) for supporting the welding rod (30) is rotatably connected to the bottom of the second connecting block (12), wherein a fixing plate (5) is fixedly provided at the bottom of the first connecting block (2), wherein a first annular groove (6), an inclined groove (8) and a second annular groove (9) are provided inside the fixing plate (5). The first annular groove (6) is connected to the second annular groove (7) through an inclined groove (8); a slider (11) is provided on the top of the second connecting block (12); the slider (11) is slidably connected and cooperated with the first annular groove (6), the inclined groove (8) and the second annular groove (7) in sequence; a rotating rod (4) is rotatably connected to the fixed plate (5); an elastic unit is provided between the rotating rod (4) and the second connecting block (12); the elastic unit comprises a telescopic rod (31) and a third spring (32) sleeved on the telescopic rod (31); the telescopic rod (31) is provided between the second connecting block (12) and the rotating rod (4); the two ends of the third spring (32) are fixedly connected to the second connecting block (12) and the rotating rod (4), respectively; the invention is characterized in that: Also includes: A transmission assembly, which is driven by the second connecting block (12) to slide in a spiral manner so as to move the connecting plate (17) vertically downward, and the transmission assembly comprises a first incomplete bevel gear ring (9), a second incomplete bevel gear ring (10), a first bevel gear (13), a second bevel gear (14) meshing with the first bevel gear (13), and a screw (15), wherein the first incomplete bevel gear ring (9) is arranged between the first annular groove (6) and the second annular groove (7), the second incomplete bevel gear ring (10) is arranged between the second annular groove (7) and the rotating rod (4), and the first bevel gear (13) is arranged through the second bevel gear ring (14) to mesh with the first bevel gear (13). The rotating shaft (34) is rotatably connected to a side of the second connecting block (12) close to the rotating rod (4); the first bevel gear (13) is meshed with the first incomplete bevel gear ring (9) and the second incomplete bevel gear ring (10) in sequence for transmission; the second bevel gear (14) is rotatably connected in the second connecting block (12); the screw rod (15) is coaxially fixedly connected to the bottom end of the second bevel gear (14); the connecting plate (17) is screwed to the screw rod (15); a first sliding groove (16) is provided in the second connecting block (12); and the connecting plate (17) is slidably connected in the first sliding groove (16); A clamping assembly receives the downward drive of the connecting plate (17) so that the clamping block (29) clamps the welding rod (30), the clamping assembly includes a pushing plate (21), a sliding hole is provided in the connecting plate (17), the pushing plate (21) is slidably connected in the sliding hole, the top end of the pushing plate (21) is inclined, the bottom of the connecting plate (17) is slidably abutted with the top end of the pushing plate (21), and a sliding rod (25) is fixedly provided on one side of the clamping block (29) close to the pushing plate (21), and one side of the pushing plate (21) is abutted with one end of the sliding rod (25).

2. The intelligent sheet metal welding system according to claim 1, characterized in that: A first rotating shaft (18) is arranged inside the second connecting block (12), the supporting plate (20) is rotatably sleeved on the first rotating shaft (18), and a torsion spring (19) is arranged between the first rotating shaft (18) and the supporting plate (20).

3. The intelligent sheet metal welding system according to claim 1, characterized in that: The connecting plate (17) is provided with a through hole for positioning the welding rod (30), a third sliding groove (28) is provided between the through hole and the sliding hole, the clamping block (29) and the sliding rod (25) are both slidably connected in the third sliding groove (28), a second spring (27) is sleeved on the sliding rod (25), and two ends of the second spring (27) are respectively fixedly connected to the clamping block (29) and the groove wall of the third sliding groove (28).

4. The intelligent sheet metal welding system according to claim 1, characterized in that: A second slide groove (24) communicating with the first slide groove (16) is provided in the second connecting block (12); a sliding plate (26) is provided on the top of the pushing plate (21); a fixing rod (22) is fixedly provided in the second connecting block (12); the sliding plate (26) is slidably sleeved on the fixing rod (22); a first spring (23) is sleeved on the fixing rod (22); two ends of the first spring (23) are respectively fixedly connected to the sliding plate (26) and the groove wall of the second slide groove (24).

5. The intelligent sheet metal welding system according to claim 1, characterized in that: The side of the clamping block (29) close to the welding rod (30) is arc-shaped.

6. A welding method of an intelligent sheet metal welding system, implemented by an intelligent sheet metal welding system according to any one of claims 1 to 5, characterized in that: The welding method comprises the following steps: S1. First, the welding rod (30) is placed in the connecting plate (17) through the through hole, and at the same time, the bottom of the welding rod (30) is supported by the supporting plate (20), the motor (3) drives the rotating rod (4) to rotate, and the second connecting block (12) is driven to rotate synchronously through the third spring (32) and the telescopic rod (31), the first bevel gear (13) is meshed with the first incomplete bevel gear ring (9) and the second incomplete bevel gear ring (10) in turn, and the screw rod (15) is driven to rotate through the meshing transmission with the second bevel gear (14), so that the screw rod (15) is driven to rotate. (15) a spiral transmission connecting plate (17), wherein the connecting plate (17) moves toward the welding head (33) along the length direction of the screw rod (15), and has a first stroke and a second stroke in sequence during the movement of the connecting plate (17) toward the welding head (33). In the first stroke, the bottom of the connecting plate (17) slides and abuts against the top of the pushing plate (21), so that the pushing plate (21) moves toward the welding rod (30), and the clamping block (29) is driven by the sliding rod (25) to clamp the welding rod (30), thereby realizing automatic clamping; S2. In the second stroke, the second connecting block (12) slides in a spiral manner along the trajectory of the first annular groove (6), the inclined groove (8) and the second annular groove (7) with the slider (11), thereby repairing the welding hole on the sheet metal and improving the repairing effect; S3. At the same time, in the second stroke, the push plate (21) is always in contact with the slide bar (25), so that the clamping block (29) always clamps the welding rod (30), thereby preventing the welding rod (30) from falling, improving the safety of the workers, and making the welding rod (30) that is continuously consumed on the connecting plate (17) advance synchronously, thereby ensuring the welding effect.

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