Automatic welding device and welding process for cement chain

Abstract

The invention relates to the technical field of laser welding, in particular to an automatic welding device and process for cement chains, which comprises a main plate, an inner hole is formed in the main plate, two welding rings are arranged on one side of the main plate, and a lifting mechanism for lifting the two welding rings is arranged in the inner hole. The welding device comprises a main plate, a welding ring is arranged on the main plate, a laser welding head is installed on the welding ring, a fine adjustment mechanism used for finely adjusting the laser welding head is arranged on the welding ring, two adjusting plates are arranged on one side of the main plate, supporting mechanisms are installed on the two adjusting plates, and storage grooves are formed in the opposite sides of the two adjusting plates. And moving screw rods are rotationally mounted in the storage grooves, the two moving screw rods are in transmission connection through a synchronous transmission mechanism, and one ends of the two moving screw rods rotationally penetrate through the adjusting plate and are in transmission connection with the lifting mechanism. Compared with the prior art, chains of different sizes can be automatically welded, the application range is wide, and welding is convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser welding, in particular to an automatic welding device and welding process for cement chains. BACKGROUND

[0002] In cement production and many industrial fields, chains as important transmission components, their quality and reliability directly affect the production efficiency and equipment safety, traditional cement chain welding mainly relies on manual operation, not only low efficiency, but also welding quality is difficult to guarantee consistency, with the development of automation technology, the market demand for efficient and accurate welding equipment is increasing.

[0003] The existing equipment can usually only handle specific size or type of chain, for different specifications of products, need to frequently change the fixture or adjust the equipment settings, resulting in low production efficiency, most of the automatic welding system lacks flexible adjustment mechanism, can not quickly and accurately align the position of chain plate and pin shaft, increases the debugging time and cost, and needs to frequently adjust the position of chain during welding, welding is more inconvenient.

[0004] Therefore, based on the above problems, we have invented an automatic welding device and welding process for cement chains. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides an automatic welding device and welding process for cement chains to solve the problems raised in the background art.

[0006] To achieve the above purpose, the present application provides the following technical scheme: an automatic welding device and welding process for cement chains, comprising a main plate, the main plate is provided with an inner hole, one side of the main plate is provided with two welding rings, the inner hole is provided with a lifting mechanism for lifting the two welding rings, the welding ring is provided with a laser welding head, the welding ring is provided with a fine adjustment mechanism for fine adjustment of the laser welding head, one side of the main plate is provided with two adjusting plates, two adjusting plates are provided with a supporting mechanism, two adjusting plates are provided with a receiving groove on the opposite side, the receiving groove is rotatably connected with a moving screw, the two moving screws are connected through a synchronous transmission mechanism, one end of the two moving screws is rotatably connected with the lifting mechanism, one side of the receiving groove is fixedly connected with a limiting slide block, the limiting slide block is slidably connected with the inner wall of the hole, the adjusting plate is provided with a synchronous transmission motor, the driving shaft of the synchronous transmission motor is rotatably connected with the moving screw.

[0007] Furthermore, the lifting mechanism includes a bidirectional lifting screw rotatably mounted to the inner wall of the inner hole; a lifting motor is mounted on the main board; the drive shaft of the lifting motor rotatably passes through the main board and is coaxially mounted with the bidirectional lifting screw; two lifting blocks are threaded onto the external thread of the bidirectional lifting screw; both lifting blocks are slidably mounted to the inner wall of the inner hole; the main board has a connecting hole; two U-shaped plates are provided in the connecting hole; the two U-shaped plates are fixedly mounted to the two lifting blocks respectively; the two U-shaped plates are rotatably mounted to two welding rings respectively; and two mounting plates are fixedly connected to the main board. A rotating shaft is rotatably mounted between the plates. A drive motor is mounted on the mounting plate, and the drive shaft of the drive motor rotatably passes through the mounting plate and is coaxially mounted with the rotating shaft. Two fixed plates are mounted on one side of the U-shaped plate, and a sliding sleeve is rotatably mounted between the two fixed plates. The sliding sleeve is slidably fitted outside the rotating shaft, and the rotating shaft passes through the fixed plates. A rotating shaft is rotatably mounted inside the U-shaped plate, and a drive gear is coaxially mounted on the rotating shaft. A toothed groove that meshes with the drive gear is provided outside the welding ring. One end of the rotating shaft rotatably passes through the U-shaped plate and is connected to the sliding sleeve through a bevel gear set for transmission.

[0008] Furthermore, the bevel gear set includes a first bevel gear and a second bevel gear that mesh with each other, the first bevel gear being coaxially mounted with the sliding sleeve, and the second bevel gear being coaxially mounted with the rotating shaft.

[0009] Furthermore, the fine-tuning mechanism includes an adjusting groove disposed on the inner wall of the welding ring, an arc-shaped sliding plate slidably mounted in the adjusting groove, an adjusting screw threaded onto the arc-shaped sliding plate, one end of the adjusting screw rotatably passing through the welding ring and coaxially mounted with an adjusting handle, an arc-shaped mounting plate fixedly connected to the arc-shaped sliding plate, a welding plate mounted on the arc-shaped mounting plate, a fine-tuning hole provided on the welding plate, a fine-tuning screw rotatably mounted in the fine-tuning hole, one end of the fine-tuning screw rotatably passing through the welding plate and coaxially mounted with a fine-tuning handle, a fine-tuning block threaded onto the external thread of the fine-tuning screw, the fine-tuning block slidably mounted with the fine-tuning hole, and the laser welding head fixedly mounted with the fine-tuning block.

[0010] Furthermore, the adjusting plate is threadedly connected to the lifting block.

[0011] Furthermore, the support mechanism includes a support column fixedly installed with the adjusting plate. The support column has two support slots. Two support plates are slidably installed outside the support column, and the two support plates are respectively matched with the two support slots. A bidirectional support screw is rotatably installed outside the support slots. Two threaded blocks are threaded onto the external threads of the bidirectional support screw. The threaded blocks are slidably installed with the support slots. A deflection plate is rotatably installed outside the threaded blocks. The end of the deflection plate away from the threaded blocks is rotatably installed with the support plate. A transmission cavity is provided inside the support column. One end of each of the two bidirectional support screws rotatably passes through the support column and extends into the transmission cavity. Both bidirectional support screws are coaxially mounted with transmission gears. The two transmission gears are meshed and connected. A support motor is installed inside the transmission cavity. The drive shaft of the support motor is coaxially mounted with the bidirectional support screws.

[0012] Furthermore, the synchronous transmission mechanism includes an intermediate shaft, on which two rotating plates are rotatably mounted. The two rotating plates are rotatably mounted to two moving screws respectively. A second pulley is coaxially mounted on the outside of each moving screw, and a first pulley is coaxially mounted on the outside of the intermediate shaft. The first pulley and the second pulley are connected by a synchronous belt drive.

[0013] An automated welding process for cement chains, comprising the following steps: S1: Adjust the positions of the support column and welding ring according to the position of the chain plate pin hole; S2: Insert the chain plate and pin into the support column in sequence and fix them in place; S3: Adjust the positions of the welding ring and the laser welding head in sequence so that the laser welding head faces the welding position of the chain plate and the pin. S4: Start welding and drive the two welding rings so that the laser welding head can simultaneously perform ring welding on the chain plate and the two pins.

[0014] Compared with the prior art, the present invention provides an automated welding device and welding process for cement chains, which has the following beneficial effects: 1. Wide applicability: The two lifting blocks are moved relative to each other by a bidirectional lifting screw, thereby controlling the height of the welding ring; at the same time, the adjusting plate is connected by a moving screw, so that the entire system can be easily adjusted to adapt to various specifications of chains according to actual needs. This design greatly expands the application range of the equipment and reduces the production line changeover time caused by product diversity.

[0015] 2. High Flexibility: Equipped with a dedicated fine-tuning mechanism for the laser welding head, it allows operators to optimize the welding angle and position at minute levels, ensuring high-quality welds even on workpieces with complex geometries. Furthermore, the drive motor, in conjunction with a bevel gear set, enables omnidirectional rotary welding, further enhancing operational flexibility.

[0016] 3. Continuity of welding: By rotating the welding ring, the laser welding head rotates in a circular motion, which can automatically weld the chain in all directions, making welding more convenient.

[0017] This application can automatically weld chains of different sizes, has a wide range of applications, and the welding is relatively convenient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the front structure of the present invention; Figure 2 This is a perspective view of the rear structure of the present invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a front structural perspective view of the present invention; Figure 5 This is a perspective view of the structure at the adjustment plate in this invention; Figure 6 This is a schematic diagram of the structure of the welding ring in this invention; Figure 7 This is a perspective view of the support mechanism in this invention.

[0019] In the diagram: 1. Main board; 2. Inner hole; 3. Welding ring; 4. Lifting mechanism; 5. Adjusting slide; 6. Bidirectional lifting screw; 7. Lifting block; 8. U-shaped plate; 9. Rotating shaft; 10. Drive motor; 11. Sliding sleeve; 12. Fixing plate; 13. Rotating shaft; 14. Drive gear; 15. Bevel gear set; 16. First bevel gear; 17. Second bevel gear; 18. Lifting motor; 19. Adjusting plate; 20. Moving screw; 21. Storage slot; 22. Synchronous transmission mechanism; 23. Synchronous transmission motor; 24. First pulley; 25. Second pulley; 26. Limit 27. Position slider; 28. Rotating plate; 29. ​​Support mechanism; 30. Arc-shaped sliding plate; 31. Adjusting screw; 32. Adjusting handle; 33. Arc-shaped mounting plate; 34. Welding plate; 35. Laser welding head; 36. Support column; 37. Support plate; 38. Support groove; 39. Bidirectional support screw; 40. Threaded block; 41. Deflection plate; 42. Transmission gear; 43. Support motor; 44. Fine-tuning mechanism; 45. Fine-tuning hole; 46. Fine-tuning screw; 47. Fine-tuning handle; 48. Fine-tuning block; 49. Connecting hole; 50. Mounting plate; 51. Intermediate shaft; 52. Transmission cavity. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this application proposes an automated welding device and welding process for cement chains.

[0022] like Figures 1-7 As shown, an automated welding device and welding process for cement chains includes a main board 1 with an inner hole 2. Two welding rings 3 are located on one side of the main board 1. A lifting mechanism 4 for raising and lowering the two welding rings 3 is located within the inner hole 2. A laser welding head 34 is mounted on each welding ring 3, and a fine-tuning mechanism 43 for fine-tuning the laser welding head 34 is also located on each welding ring 3. Two adjusting plates 19 are located on one side of the main board 1, each with a support mechanism 28. A receiving groove 21 is located on the opposite side of each adjusting plate 19, and a moving screw 20 is rotatably mounted within the receiving groove 21. The two moving screws 20 are connected by a synchronous transmission mechanism 22. It should be noted that the synchronous transmission mechanism 22 includes an intermediate shaft 50. Two rotating plates 27 are rotatably mounted on the outer side of the intermediate shaft 50. The two rotating plates 27 are rotatably mounted on the two moving screws 20 respectively. A second pulley 25 is coaxially mounted on the outer side of the moving screws 20. A first pulley 24 is coaxially mounted on the outer side of the intermediate shaft 50. The first pulley 24 and the second pulley 25 are connected by a synchronous belt drive. One end of each of the two moving screws 20 rotatably passes through the adjusting plate 19 and is connected to the lifting mechanism 4. A limit slider 26 is fixedly connected to one side of the receiving groove 21. The limit slider 26 is slidably mounted on the inner wall of the inner hole 2. A synchronous drive motor 23 is mounted on the outer side of the adjusting plate 19. The drive shaft of the synchronous drive motor 23 rotatably passes through the adjusting plate 19 and is coaxially mounted on the moving screws 20. It should be noted that the adjusting plate 19 is threadedly connected to the lifting block 7.

[0023] To facilitate welding at the corresponding positions of the chain plate and pin, a lifting mechanism 4 is provided. The lifting mechanism 4 includes a bidirectional lifting screw 6 rotatably mounted to the inner wall of the inner hole 2. A lifting motor 18 is mounted on the main board 1. The drive shaft of the lifting motor 18 rotatably passes through the main board 1 and is coaxially mounted with the bidirectional lifting screw 6. Two lifting blocks 7 are threaded onto the external threads of the bidirectional lifting screw 6, and both lifting blocks 7 are slidably mounted to the inner wall of the inner hole 2. The main board 1 has a connecting hole 48, within which are two U-shaped plates 8, which are fixedly mounted to the two lifting blocks 7 respectively. The two U-shaped plates 8 are rotatably mounted to two welding rings 3 respectively. Two mounting plates 49 are fixedly connected to the main board 1, and a rotating shaft 9 is rotatably mounted between the two mounting plates 49. A drive motor 10 is mounted on the mounting plates 49. The drive shaft of 0 rotates through the mounting plate 49 and is coaxially mounted with the rotating shaft 9. Two fixing plates 12 are mounted on one side of the U-shaped plate 8. A sliding sleeve 11 is rotatably mounted between the two fixing plates 12. The sliding sleeve 11 is slidably sleeved on the outside of the rotating shaft 9. The rotating shaft 9 is set through the fixing plate 12. A rotating shaft 13 is rotatably mounted inside the U-shaped plate 8. A drive gear 14 is coaxially mounted on the rotating shaft 13. The welding ring 3 has a tooth groove that meshes with the drive gear 14. One end of the rotating shaft 13 rotates through the U-shaped plate 8 and is connected to the sliding sleeve 11 through a bevel gear set 15. It should be noted that the bevel gear set 15 includes a first bevel gear 16 and a second bevel gear 17 that mesh with each other. The first bevel gear 16 is coaxially mounted with the sliding sleeve 11, and the second bevel gear 17 is coaxially mounted with the rotating shaft 13.

[0024] Through the above technical features: the drive shaft of the lifting motor 18 drives the bidirectional lifting screw 6 to rotate, the bidirectional lifting screw 6 drives the two lifting blocks 7 to move relative to each other, the two lifting blocks 7 drive the welding ring 3 to rise and fall through the U-shaped plate 8, at the same time, the two lifting blocks 7 drive the two adjusting plates 19 to move relative to each other through the moving screw 20, the adjusting plates 19 drive the support column 35 to move until the appropriate position, so that chains of different sizes can be fixed, and the welding range is relatively wide; The drive shaft of the drive motor 10 drives the rotating shaft 9 to rotate, the rotating shaft 9 drives the two sliding sleeves 11 to rotate, the sliding sleeves 11 drive the rotating shaft 13 to rotate, the rotating shaft 13 drives the drive gear 14 to rotate, the drive gear 14 drives the welding ring 3 to rotate, and the welding ring 3 drives the laser welding head 34 to rotate. This allows for automatic welding of the circumference of the pin shaft in all directions. During welding, there is no need for manual steering of the chain and welding head, making welding more convenient.

[0025] To adjust the position of the laser welding head 34, a fine-tuning mechanism 43 is provided. The fine-tuning mechanism 43 includes an adjusting groove 5 set on the inner wall of the welding ring 3. An arc-shaped sliding plate 29 is slidably installed in the adjusting groove 5. An adjusting screw 30 is threaded on the arc-shaped sliding plate 29. One end of the adjusting screw 30 rotates through the welding ring 3 and is coaxially mounted with an adjusting handle 31. An arc-shaped mounting plate 32 is fixedly connected to the arc-shaped sliding plate 29. A welding plate 33 is installed on the arc-shaped mounting plate 32. The welding plate 33 is provided with a fine-tuning hole 44. A fine-tuning screw 45 is rotatably installed in the fine-tuning hole 44. One end of the fine-tuning screw 45 rotates through the welding plate 33 and is coaxially mounted with a fine-tuning handle 46. A fine-tuning block 47 is threaded on the external side of the fine-tuning screw 45. The fine-tuning block 47 is slidably installed with the fine-tuning hole 44. The laser welding head 34 is fixedly installed with the fine-tuning block 47.

[0026] Through the above technical features: rotating the adjusting handle 31 causes the adjusting screw 30 to rotate, which in turn causes the arc-shaped sliding plate 29 to move. The arc-shaped sliding plate 29, through the arc-shaped mounting plate 32 and the welding plate 33, causes the laser welding head 34 to move until it reaches the appropriate position. At this time, rotating the fine-tuning handle 46 causes the fine-tuning screw 45 to rotate, which in turn causes the fine-tuning block 47 to move. The fine-tuning block 47 then causes the laser welding head 34 to move until it points to the welding position. This allows for welding of pins of different sizes, making welding relatively convenient and covering a wide range.

[0027] To secure the chain plate and pin, a support mechanism 28 is provided. The support mechanism 28 includes a support column 35 fixedly installed with the adjusting plate 19. The support column 35 has two support grooves 37. Two support plates 36 are slidably installed on the outside of the support column 35, each matching one of the two support grooves 37. A bidirectional support screw 38 is rotatably installed on the outside of the support grooves 37. Two threaded blocks 39 are threaded onto the external threads of the bidirectional support screw 38. The threaded blocks 39 are slidably installed with the support grooves 37. A deflection plate 40 is rotatably mounted on the outside of the threaded block 39. The end of the deflection plate 40 away from the threaded block 39 is rotatably mounted on the support plate 36. A transmission cavity 51 is provided inside the support column 35. One end of each of the two bidirectional support screws 38 rotatably passes through the support column 35 and extends into the transmission cavity 51. Both bidirectional support screws 38 are coaxially mounted with transmission gears 41. The two transmission gears 41 are meshed and connected. A support motor 42 is installed inside the transmission cavity 51. The drive shaft of the support motor 42 is coaxially mounted with the bidirectional support screws 38.

[0028] Through the above technical features: the drive shaft of the support motor 42 drives two bidirectional support screws 38 to rotate, the bidirectional support screws 38 drive multiple threaded blocks 39 to move relative to each other, and the threaded blocks 39 drive two support plates 36 to move relative to each other through the deflection plate 40 until the support plates 36 fix the chain plate and the pin shaft, which makes it more convenient to fix them when welding the chain.

[0029] An automated welding process for cement chains, comprising the following steps: S1: Adjust the positions of the support column 35 and the welding ring 3 according to the position of the chain plate pin hole; S2: Insert the chain plate and pin into the support column 35 in sequence and fix them; S3: Adjust the positions of welding ring 3 and laser welding head 34 in sequence so that laser welding head 34 faces the welding position of chain plate and pin shaft; S4: Start welding and drive the two welding rings 3 so that the laser welding head 34 can simultaneously perform ring welding on the chain plate and the two pins.

[0030] Working principle: 1) Fixing the chain plate and pin: The drive shaft of the lifting motor 18 drives the bidirectional lifting screw 6 to rotate. The bidirectional lifting screw 6 drives the two lifting blocks 7 to move relative to each other. The two lifting blocks 7 drive the welding ring 3 to rise and fall through the U-shaped plate 8. At the same time, the two lifting blocks 7 drive the two adjusting plates 19 to move relative to each other through the moving screw 20. The adjusting plates 19 drive the support column 35 to move until the appropriate position is reached. At this time, the chain plate and pin are sleeved on the support column 35. Then, the support motor 42 is driven. The drive shaft of the support motor 42 drives the two bidirectional support screws 38 to rotate. The bidirectional support screws 38 drive the multiple threaded blocks 39 to move relative to each other. The threaded blocks 39 drive the two support plates 36 to move relative to each other through the deflection plate 40 until the support plates 36 fix the chain plate and pin. 2) Adjusting the welding position: Rotate the adjusting handle 31, which drives the adjusting screw 30 to rotate. The adjusting screw 30 drives the arc-shaped sliding plate 29 to move. The arc-shaped sliding plate 29 drives the laser welding head 34 to move through the arc-shaped mounting plate 32 and the welding plate 33 until the appropriate position is reached. At this time, rotate the fine adjustment handle 46, which drives the fine adjustment screw 45 to rotate. The fine adjustment screw 45 drives the fine adjustment block 47 to move. The fine adjustment block 47 drives the laser welding head 34 to move until the laser welding head 34 points to the welding position. 3) Welding of chain plates and pins: The drive shaft of the drive motor 10 drives the rotating shaft 9 to rotate, the rotating shaft 9 drives the two sliding sleeves 11 to rotate, the sliding sleeves 11 drive the rotating shaft 13 to rotate, the rotating shaft 13 drives the drive gear 14 to rotate, the drive gear 14 drives the welding ring 3 to rotate, and the welding ring 3 drives the laser welding head 34 to rotate. This allows for automatic welding of the circumference of the pins in all directions. There is no need for manual steering of the chain and welding head during welding, making welding more convenient.

[0031] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0032] The detailed descriptions listed above are merely specific descriptions of feasible implementation methods of this application and are not intended to limit the scope of protection of this application. All equivalent implementation methods or modifications made without departing from the spirit of the art of this application should be included within the scope of protection of this invention.

Claims

1. An automated welding device for cement chains, characterized in that: Includes a main board (1), the main board (1) having an inner hole (2), two welding rings (3) on one side of the main board (1), a lifting mechanism (4) for raising and lowering the two welding rings (3) inside the inner hole (2), a laser welding head (34) mounted on the welding rings (3), a fine-tuning mechanism (43) for fine-tuning the laser welding head (34) on the welding rings (3), two adjusting plates (19) on one side of the main board (1), a support mechanism (28) mounted on each of the two adjusting plates (19), and a storage groove (21) on the opposite side of each of the two adjusting plates (19). A movable screw (20) is rotatably installed inside the storage slot (21). The two movable screws (20) are connected by a synchronous transmission mechanism (22). One end of each movable screw (20) rotatably passes through the adjustment plate (19) and is connected to the lifting mechanism (4). A limit slider (26) is fixedly connected to one side of the storage slot (21). The limit slider (26) is slidably installed with the inner wall of the inner hole (2). A synchronous transmission motor (23) is installed outside the adjustment plate (19). The drive shaft of the synchronous transmission motor (23) rotatably passes through the adjustment plate (19) and is coaxially installed with the movable screw (20).

2. The automated welding device for cement chains according to claim 1, characterized in that: The lifting mechanism (4) includes a bidirectional lifting screw (6) rotatably mounted to the inner wall of the inner hole (2). A lifting motor (18) is mounted on the main board (1). The drive shaft of the lifting motor (18) rotates through the main board (1) and is coaxially mounted with the bidirectional lifting screw (6). Two lifting blocks (7) are threaded onto the external thread of the bidirectional lifting screw (6). Both lifting blocks (7) are slidably mounted to the inner wall of the inner hole (2). A connecting hole (48) is provided on the main board (1). Two U-shaped plates (8) are provided in the connecting hole (48). The two U-shaped plates (8) are fixedly mounted to the two lifting blocks (7) respectively. The two U-shaped plates (8) are rotatably mounted to two welding rings (3) respectively. Two mounting plates (49) are fixedly connected to the main board (1). A rotating mechanism is rotatably mounted between the two mounting plates (49). A drive motor (10) is mounted on the mounting plate (49) of the shaft (9). The drive shaft of the drive motor (10) rotates through the mounting plate (49) and is coaxially mounted with the shaft (9). Two fixing plates (12) are mounted on one side of the U-shaped plate (8). A sliding sleeve (11) is rotatably mounted between the two fixing plates (12). The sliding sleeve (11) is slidably sleeved outside the shaft (9). The shaft (9) passes through the fixing plate (12). A rotating shaft (13) is rotatably mounted inside the U-shaped plate (8). A drive gear (14) is coaxially mounted on the rotating shaft (13). A tooth groove that meshes with the drive gear (14) is provided outside the welding ring (3). One end of the rotating shaft (13) rotates through the U-shaped plate (8) and is connected to the sliding sleeve (11) by a bevel gear set (15).

3. The automated welding device for cement chains according to claim 2, characterized in that: The bevel gear set (15) includes a first bevel gear (16) and a second bevel gear (17) that mesh with each other. The first bevel gear (16) is coaxially mounted with the sliding sleeve (11), and the second bevel gear (17) is coaxially mounted with the rotating shaft (13).

4. The automated welding device for cement chains according to claim 1, characterized in that: The fine-tuning mechanism (43) includes an adjusting groove (5) disposed on the inner wall of the welding ring (3). An arc-shaped sliding plate (29) is slidably installed in the adjusting groove (5). An adjusting screw (30) is threaded onto the arc-shaped sliding plate (29). One end of the adjusting screw (30) rotates through the welding ring (3) and is coaxially mounted with an adjusting handle (31). An arc-shaped mounting plate (32) is fixedly connected to the arc-shaped sliding plate (29). An arc-shaped mounting plate (32) is mounted on the arc-shaped mounting plate (32). A welding plate (33) is provided with a fine adjustment hole (44). A fine adjustment screw (45) is rotatably installed in the fine adjustment hole (44). One end of the fine adjustment screw (45) rotatably passes through the welding plate (33) and is coaxially installed with a fine adjustment handle (46). A fine adjustment block (47) is threaded on the external thread of the fine adjustment screw (45). The fine adjustment block (47) is slidably installed with the fine adjustment hole (44). The laser welding head (34) is fixedly installed with the fine adjustment block (47).

5. An automated welding device for cement chains according to claim 2, characterized in that: The adjusting plate (19) is threadedly connected to the lifting block (7).

6. An automated welding device for cement chains according to claim 1, characterized in that: The support mechanism (28) includes a support column (35) fixedly installed with the adjusting plate (19). The support column (35) is provided with two support grooves (37). Two support plates (36) are slidably installed on the support column (35). The two support plates (36) are respectively matched with the two support grooves (37). A bidirectional support screw (38) is rotatably installed on the support grooves (37). Two threaded blocks (39) are threaded on the external threads of the bidirectional support screw (38). The threaded blocks (39) are slidably installed with the support grooves (37). The threaded blocks (39) are rotatably installed with deflection. Plate (40), the deflection plate (40) is rotatably mounted with the support plate (36) at one end away from the threaded block (39), the support column (35) is provided with a transmission cavity (51), one end of each of the two bidirectional support screws (38) rotatably passes through the support column (35) and extends into the transmission cavity (51), both of the two bidirectional support screws (38) are coaxially mounted with transmission gears (41), the two transmission gears (41) are meshed and connected, the transmission cavity (51) is installed with a support motor (42), the drive shaft of the support motor (42) is coaxially mounted with the bidirectional support screws (38).

7. An automated welding device for cement chains according to claim 1, characterized in that: The synchronous transmission mechanism (22) includes an intermediate shaft (50), on which two rotating plates (27) are rotatably mounted. The two rotating plates (27) are rotatably mounted with two moving screws (20) respectively. A second pulley (25) is coaxially mounted on the outside of the moving screws (20), and a first pulley (24) is coaxially mounted on the outside of the intermediate shaft (50). The first pulley (24) and the second pulley (25) are connected by a synchronous belt drive.

8. An automated welding process for cement chains, applicable to the automated welding device for cement chains as described in any one of claims 1-7, characterized in that, The specific steps are as follows: S1: Adjust the positions of the support column (35) and welding ring (3) according to the position of the chain plate pin hole; S2: Insert the chain plate and pin into the support column (35) in sequence and fix them; S3: Adjust the positions of the welding ring (3) and the laser welding head (34) in sequence so that the laser welding head (34) faces the welding position of the chain plate and the pin. S4: Start welding and drive the two welding rings (3) so that the laser welding head (34) can simultaneously perform ring welding on the chain plate and the two pins.

Images