Tubular part multi-station laser welding equipment

Abstract

The invention belongs to the technical field of welding equipment, and particularly relates to tubular part multi-station laser welding equipment which comprises a welding mechanism, a material taking frame and a conveying table, the material taking frame comprises a pair of supports, a main shaft is rotationally connected between the two supports, two sets of supporting rods are fixed to the outer wall of the circumference of the main shaft, and first electric push rods are rotationally connected to the two supporting rods correspondingly; a clamping cylinder is fixed to an output shaft of the first electric push rod, a second motor is fixed to the outer side face of one set of supporting rods, a first motor is fixed to the outer side face of one support, a pair of stopping clamps is arranged at the end, close to the material taking frame, of the conveying table, a gate is arranged at a discharging port of the conveying table, and a pushing assembly is arranged on the conveying table. According to the automatic material taking device, after the first motor is started, the main shaft and the multiple supporting rods can be driven to rotate in the anticlockwise direction, when a certain pair of supporting rods rotate to the material stopping clamp, the first electric push rod is started, then a pair of pipe-shaped parts are clamped through the two clamping cylinders, and therefore materials can be taken orderly and automatically.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, and in particular to a multi-station laser welding equipment for tubular parts. Background Art

[0002] Laser welding uses high-energy laser pulses to locally heat the material in a small area. The energy of the laser radiation diffuses into the interior of the material through heat conduction, melting the material to form a specific molten pool. It is a new type of welding method, mainly for the welding of thin-walled materials and precision parts.

[0003] In order to solve the problem that "manual disassembly and assembly of pipe fittings is still required in equipment with many workstations", a Chinese patent with publication number CN115255641B discloses a multi-station circular pipe fitting circumferential laser welding machine, including a laser welding mechanism and a pipe fitting. A multi-station mechanism is arranged on one side of the working end of the laser welding mechanism. The multi-station mechanism includes an end frame arranged oppositely, and a three-base rotating body providing three welding workstations is rotatably installed between the two end frames. A clamping rotating mechanism is fixedly assembled on the three sides of the three-base rotating body. The clamping rotating mechanism includes an end housing and a cylinder 2 arranged at both ends of the three-base rotating body. The pipe fitting is clamped between the end housing and the cylinder 2. Although the existing technical problems have been solved, the following problems still exist: In this technical solution, although manual disassembly and assembly of pipe fittings is not required, manual delivery of pipe fittings to the workstation is required, so corresponding improvements are made to address this problem. Summary of the invention

[0004] Based on the technical problems existing in the prior art, the present invention proposes a multi-station laser welding device for tubular parts.

[0005] The present invention provides a multi-station laser welding device for tubular parts, comprising a welding mechanism, a material taking rack and a conveying platform, wherein the material taking rack is located between the welding mechanism and the conveying platform, the material taking rack comprises a pair of brackets, a main shaft is rotatably connected between the two brackets, two groups of support rods distributed in an annular array are fixed on the circumferential outer wall of the main shaft, an electric push rod 1 is rotatably connected to the two support rods of the same pair, a clamping cylinder is fixed to the output shaft of the electric push rod 1, a motor 2 is fixed to the outer side surface of one group of support rods, the output shaft of the motor 2 is fixedly connected to the adjacent electric push rod 1, a motor 1 is fixed to the outer side surface of one of the brackets, the output shaft of the motor 1 is fixedly connected to the main shaft, and the bottom of the conveying platform A pair of legs are fixed, a pair of material stopping clamps are provided at one end of the conveying platform close to the material taking rack, a gate is provided at the material outlet of the conveying platform, and a pushing assembly is provided on the conveying platform. The pipe-shaped parts to be welded are stacked in pairs on the conveying platform, the gate is opened, and the pipe-shaped parts are pushed to the material stopping clamps one by one through the pushing assembly. When the motor is started, it will drive the main shaft and multiple support rods to rotate counterclockwise. When a pair of support rods rotates to the material stopping clamps, it stops, and then the electric push rods on the pair of support rods are started, and then a pair of pipe-shaped parts are clamped by two clamping cylinders, and then the material taking rack sends the pair of pipe-shaped parts to the welding mechanism for welding, so that the materials can be taken out in an orderly manner for welding.

[0006] Preferably, the gate includes a sealing door for sealing the discharge port, an electric push rod 2 is fixed at the top of the discharge port, an ear plate is provided at the top of the sealing door, the output shaft of the electric push rod 2 is connected to the ear plate, and the electric push rod 2 is started to drive the sealing door to move upward, thereby opening the gate. When a pair of tubular parts are conveyed to the material stop clamp, the electric push rod 2 drives the sealing door to move downward again, and then pushes the other tubular parts back into the conveying platform, thereby closing the gate.

[0007] Preferably, the pushing assembly includes a push plate, and a sliding opening for the push plate to slide is opened at the bottom of the conveying platform. A motor three is fixed to the bottom of the conveying platform, and a screw one is connected to the output shaft of the motor three. The screw one is threadedly connected to the push plate. When the motor three is started, the output shaft of the motor three drives the screw one to rotate, and the screw one drives the push plate to move along the sliding opening, thereby pushing the tubular component.

[0008] Preferably, a receiving platform extending to one end of the conveying platform is provided below the material receiving rack, two supporting legs are fixed at the bottom of the receiving platform, one end of the receiving platform close to the material receiving rack is arc-shaped upward, a ventilation hole is opened on the receiving platform below the main shaft, a fan is fixed at the bottom of the receiving platform below the ventilation hole, and a material blocking assembly is provided on the receiving platform. When the pair of tubular parts that have been welded move to one end of the arc of the material receiving platform, the electric push rods on the pair of support rods are reset, and then the clamping cylinder will release the tubular part, the tubular part will fall onto the receiving platform, and then be blocked at the ventilation hole by the material blocking assembly, and the fan will cool the tubular part that has just been welded through the ventilation hole.

[0009] Preferably, the material baffle assembly includes a baffle located in the material receiving platform, a bearing seat is fixed on the side of the material receiving platform, and a screw rod 2 is rotatably connected to the bearing seat, and the screw rod 2 is threadedly connected to the baffle. The ends of the screw rod 1 and the screw rod 2 are fixedly sleeved with pulleys, and the two pulleys are connected by a belt. When the screw rod 1 rotates, the screw rod 2 will be driven to rotate through the transmission cooperation of the pulley and the belt, and then the screw rod 2 will drive the baffle to move, so that the baffle and the push plate will keep synchronous movement, and when the next tubular component enters the arc-shaped end of the material receiving platform, the cooled tubular component will be pushed toward the baffle, thereby causing it to leave the position of the ventilation hole, and the next tubular component will move to the position of the ventilation hole.

[0010] Preferably, an elastic guide plate is provided above the ventilation hole. When the tubular component is cooled at the ventilation hole, the guide plate will arch upward. The arc structure formed by the arched guide plate will guide the wind downward again, so that the cold wind will blow toward the tubular component from top to bottom, thereby enhancing the cooling effect on the tubular component.

[0011] Preferably, a pair of elastic fixing rods are fixed on both sides of the material receiving platform, and a rotating shaft is rotatably connected between the two fixing rods in the same group. The guide plate is installed between the two rotating shafts, and guide sleeves are fixed on both sides of the material receiving platform. A push rod is inserted in the guide sleeve, and the top of the push rod abuts against the guide plate. The push rod is connected to a pushing assembly. When the support rod rotates to the push rod, the push rod will be pushed upward by the pushing assembly, and the top of the push rod will push the middle part of the guide plate upward, and then the guide plate forms an arc structure.

[0012] Preferably, the pushing assembly includes a second disc, a support plate is fixed at the end of the support rod, the second disc is fixed on the free end of the support plate, and a first disc that can contact the edge of the second disc is fixed on the push rod. When the support rod rotates to the push rod, the first disc will be pushed from the bottom by the second disc, so that the push rod can be pushed upward.

[0013] Preferably, the welding mechanism includes a mounting frame, a welding machine is slidably connected to the top of the mounting frame, an electric push rod three is fixed to the top of the mounting frame, and the output shaft of the electric push rod three is fixedly connected to the welding machine. When a pair of tubular parts to be welded are moved to the welding mechanism, the welding machine is driven close to the tubular parts by the electric push rod three, and then the motor two is started. The motor two drives the electric push rod one, the clamping cylinder and the tubular part to rotate together, and the welding machine will perform welding at the middle position of the pair of tubular parts.

[0014] Compared with the prior art, the present invention provides a multi-station laser welding device for tubular parts, which has the following beneficial effects: 1. A multi-station laser welding equipment for tubular parts, which is equipped with a material picking rack and a conveying platform, opens the gate, and pushes the tubular parts one by one to the material stopping clamp through the pushing assembly. Once the motor is started, it will drive the main shaft and multiple support rods to rotate counterclockwise. When a pair of support rods rotates to the material stopping clamp, it stops, and then the electric push rods on the pair of support rods are started, and then a pair of tubular parts are clamped by two clamping cylinders, and then the material picking rack sends the pair of tubular parts to the welding mechanism for welding, so that the materials can be picked up in an orderly manner for welding.

[0015] 2. A multi-station laser welding device for tubular parts. By setting a fan, when the pair of tubular parts that have been welded are moved to one end of the arc of the receiving table, the electric push rods on the pair of support rods are reset, and then the clamping cylinder will release the tubular part, and the tubular part will fall onto the receiving table, and then be blocked at the ventilation hole by the material blocking assembly, and the fan will cool the tubular part that has just been welded through the ventilation hole.

[0016] 3. A multi-station laser welding device for tubular parts. By setting a guide plate, when the tubular part is cooled at the ventilation hole, the guide plate will arch upward, and the arc structure formed by the arched guide plate will guide the wind downward again, so that the cold wind will blow from top to bottom toward the tubular part, thereby enhancing the cooling effect on the tubular part. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a multi-station laser welding device for tubular parts proposed by the present invention; Figure 2 This is a schematic structural diagram of a first angle of a material taking rack and a conveying platform of a multi-station laser welding device for tubular parts proposed by the present invention; Figure 3 This is a schematic diagram of the installation structure of a clamping cylinder of a multi-station laser welding device for tubular parts proposed by the present invention; Figure 4 This is a schematic diagram of the structure of a conveyor platform of a multi-station laser welding device for tubular parts proposed by the present invention; Figure 5 A schematic diagram of the bottom structure of a conveyor platform of a multi-station laser welding device for tubular parts proposed by the present invention; Figure 6 This is a schematic diagram of the second angle structure of a material taking rack and a conveying platform of a multi-station laser welding equipment for tubular parts proposed by the present invention; Figure 7 A schematic diagram of the installation structure between a guide plate and a material receiving table of a multi-station laser welding device for tubular parts proposed by the present invention; Figure 8 For the present invention Figure 6 A schematic diagram of the enlarged structure at point A; Fig. 9The present invention provides a schematic diagram of the welding mechanism structure of a multi-station laser welding device for tubular parts.

[0018] In the figure: 1. bracket; 2. spindle; 3. motor 1; 4. support rod; 5. electric push rod 1; 6. clamping cylinder; 7. motor 2; 8. conveyor table; 9. support leg 1; 10. material stop clamp; 11. sealing door; 12. electric push rod 2; 13. ear plate; 14. slide; 15. push plate; 16. screw 1; 17. motor 3; 18. receiving table; 19. support leg 2; 20. ventilation hole; 21. fan; 22. guide plate; 23. guide sleeve; 24. push rod; 25. fixing rod; 26. rotating shaft; 27. disc 1; 28. support plate; 29. ​​disc 2; 30. bearing seat; 31. screw 2; 32. baffle; 33. pulley; 34. belt; 35. mounting frame; 36. electric push rod 3; 37. welding machine. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] Reference Figure 1-Figure 9A multi-station laser welding device for tubular parts, comprising a welding mechanism, a material taking rack and a conveying platform 8, wherein the material taking rack is located between the welding mechanism and the conveying platform 8, and the material taking rack comprises a pair of brackets 1, wherein the same main shaft 2 is rotatably connected between the two brackets 1, and two groups of support rods 4 distributed in an annular array are fixed on the circumferential outer wall of the main shaft 2, and an electric push rod 1 5 is rotatably connected to the two support rods 4 of the same pair, and a clamping cylinder 6 is fixed to the output shaft of the electric push rod 1 5, and a motor 2 7 is fixed to the outer side surface of one group of support rods 4, and the output shaft of the motor 2 7 is fixedly connected to the adjacent electric push rod 1 5, and a motor 1 3 is fixed to the outer side surface of one of the brackets 1, and the output shaft of the motor 1 3 is fixedly connected to the main shaft 2, and the bottom of the conveying platform 8 is fixed. There is a pair of legs 9, and a pair of material stopping clamps 10 are provided at one end of the conveying platform 8 close to the material taking frame. A gate is provided at the material outlet of the conveying platform 8, and a pushing assembly is provided on the conveying platform 8. The pipe-shaped parts to be welded are stacked in pairs on the conveying platform 8, and the gate is opened. The pipe-shaped parts are pushed to the material stopping clamps 10 one by one through the pushing assembly. After the motor 3 is started, it will drive the main shaft 2 and multiple support rods 4 to rotate counterclockwise. When a pair of support rods 4 rotates to the material stopping clamps 10, it stops, and then the electric push rod 5 on the pair of support rods 4 is started, and then a pair of pipe-shaped parts are clamped by two clamping cylinders 6, and then the material taking frame sends this pair of pipe-shaped parts to the welding mechanism for welding, so that the materials can be taken in an orderly manner for welding.

[0022] Among them, the gate includes a sealing door 11 for sealing the discharge port, an electric push rod 12 is fixed at the top of the discharge port, an ear plate 13 is provided at the top of the sealing door 11, and the output shaft of the electric push rod 12 is connected to the ear plate 13. When the electric push rod 12 is started to drive the sealing door 11 to move upward, the gate is opened. When a pair of tubular parts are conveyed to the stop clamp 10, the electric push rod 12 drives the sealing door 11 to move downward, and then pushes the other tubular parts back into the conveying platform 8, and the gate is closed.

[0023] Among them, the pushing component includes a pushing plate 15, and a sliding opening 14 for the pushing plate 15 to slide is opened at the bottom of the conveying platform 8. A motor 3 17 is fixed at the bottom of the conveying platform 8. The output shaft of the motor 3 17 is connected to a screw 16. The screw 16 is threadedly connected to the pushing plate 15. When the motor 3 17 is started, the output shaft of the motor 3 17 drives the screw 16 to rotate, and the screw 16 drives the pushing plate 15 to move along the sliding opening 14, thereby pushing the tubular component.

[0024] Furthermore, a receiving platform 18 extending to one end of the conveying platform 8 is provided below the material picking rack, and a supporting leg 2 19 is fixed at the bottom of the receiving platform 18. The end of the receiving platform 18 close to the material picking rack is arc-shaped upward, and a ventilation hole 20 located below the main shaft 2 is opened on the receiving platform 18. A fan 21 located below the ventilation hole 20 is fixed at the bottom of the receiving platform 18, and a material blocking assembly is provided on the receiving platform 18. When the pair of tubular parts that have been welded move to one end of the arc of the receiving platform 18, the electric push rod 1 5 on the pair of support rods 4 is reset, and then the clamping cylinder 6 will release the tubular part, and the tubular part will fall onto the receiving platform 18, and then be blocked at the ventilation hole 20 by the material blocking assembly, and the fan 21 will cool the tubular part that has just been welded through the ventilation hole 20.

[0025] Among them, the material baffle assembly includes a baffle 32 located in the material receiving platform 18, a bearing seat 30 is fixed on the side of the material receiving platform 18, a screw second 31 is rotatably connected to the bearing seat 30, the screw second 31 is threadedly connected to the baffle 32, the ends of the screw first 16 and the screw second 31 are fixedly sleeved with pulleys 33, and the two pulleys 33 are connected by a belt 34. When the screw first 16 rotates, the screw second 31 will be driven to rotate through the transmission cooperation of the pulley 33 and the belt 34, and then the screw second 31 will drive the baffle 32 to move, so that the baffle 32 will keep synchronous movement with the push plate 15, and when the next tubular component enters the arc-shaped end of the material receiving platform 18, the cooled tubular component will be pushed toward the baffle 32, thereby causing it to leave the position of the ventilation hole 20, and the next tubular component will move to the position of the ventilation hole 20.

[0026] Furthermore, an elastic guide plate 22 is provided above the ventilation hole 20. When the tubular component is cooled at the ventilation hole 20, the guide plate 22 will arch upward, and the arc structure formed by the arched guide plate 22 will guide the wind downward again, so that the cold wind will blow toward the tubular component from top to bottom, thereby enhancing the cooling effect on the tubular component.

[0027] Among them, a pair of elastic fixed rods 25 are fixed on both sides of the material receiving platform 18, and a rotating shaft 26 is rotatably connected between the two fixed rods 25 of the same group. The guide plate 22 is installed between the two rotating shafts 26, and a guide sleeve 23 is fixed on both sides of the material receiving platform 18. A push rod 24 is inserted in the guide sleeve 23. The top end of the push rod 24 abuts against the guide plate 22. The push rod 24 is connected to a pushing assembly. When the support rod 4 rotates to the push rod 24, the push rod 24 will be pushed upward by the pushing assembly, and the top end of the push rod 24 will push the middle part of the guide plate 22 upward, and then the guide plate 22 forms an arc structure.

[0028] Among them, the pushing assembly includes a disc 29, a support plate 28 is fixed to the end of the support rod 4, and the disc 29 is fixed to the free end of the support plate 28. A disc 1 27 that can contact the edge of the disc 29 is fixed on the push rod 24. When the support rod 4 rotates to the push rod 24, the disc 1 27 will be pushed from the bottom through the disc 29, so that the push rod 24 can be pushed upward.

[0029] Among them, the welding mechanism includes a mounting frame 35, a welding machine 37 is slidably connected to the top of the mounting frame 35, an electric push rod 36 is fixed to the top of the mounting frame 35, and the output shaft of the electric push rod 36 is fixedly connected to the welding machine 37. When a pair of tubular parts to be welded moves to the welding mechanism, the welding machine 37 is driven to approach the tubular parts by the electric push rod 36, and then the motor 2 7 is started. The motor 2 7 drives the electric push rod 1 5, the clamping cylinder 6 and the tubular part to rotate together, and the welding machine 37 will perform welding at the middle position of the pair of tubular parts.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-station laser welding device for tubular parts, comprising a welding mechanism, a material taking rack and a conveying platform (8), characterized in that: The material taking frame is located between the welding mechanism and the conveying platform (8), and comprises a pair of brackets (1), a main shaft (2) being rotatably connected between the two brackets (1), two groups of support rods (4) distributed in a circular array being fixed on the circumferential outer wall of the main shaft (2), electric push rods (5) being rotatably connected to the two support rods (4) of the same pair, the output shaft of the electric push rods (5) being fixed with a clamping cylinder (6), a motor (7) being fixed to the outer side surface of one group of support rods (4), the output shaft of the motor (7) being fixedly connected to the adjacent electric push rod (5), a motor (3) being fixed to the outer side surface of one of the brackets (1), the output shaft of the motor (3) being fixedly connected to the main shaft (2), a pair of support legs (9) being fixed to the bottom of the conveying platform (8), a pair of material stopping clamps (10) being provided at one end of the conveying platform (8) close to the material taking frame, a gate being provided at the material outlet of the conveying platform (8), and a pushing assembly being provided on the conveying platform (8).

2. The multi-station laser welding equipment for tubular parts according to claim 1, characterized in that: The gate comprises a sealing door (11) for sealing the discharge port, a second electric push rod (12) is fixed at the top of the discharge port, a lug plate (13) is provided at the top of the sealing door (11), and an output shaft of the second electric push rod (12) is connected to the lug plate (13).

3. The multi-station laser welding equipment for tubular parts according to claim 1 is characterized in that: The pushing assembly comprises a pushing plate (15), a sliding opening (14) for the pushing plate (15) to slide is provided at the bottom of the conveying platform (8), a motor three (17) is fixed at the bottom of the conveying platform (8), a screw rod one (16) is connected to the output shaft of the motor three (17), and the screw rod one (16) is threadedly connected to the pushing plate (15).

4. The multi-station laser welding equipment for tubular parts according to claim 1, characterized in that: A receiving platform (18) extending toward one end of the conveying platform (8) is provided below the material receiving rack, a second support leg (19) is fixed at the bottom of the receiving platform (18), one end of the receiving platform (18) close to the material receiving rack is arcuately upward, a ventilation hole (20) located below the main shaft (2) is opened on the receiving platform (18), a fan (21) located below the ventilation hole (20) is fixed at the bottom of the receiving platform (18), and a material blocking assembly is provided on the receiving platform (18).

5. The multi-station laser welding equipment for tubular parts according to claim 4 is characterized in that: The material blocking assembly comprises a baffle (32) located inside the material receiving platform (18), a bearing seat (30) is fixed on the side of the material receiving platform (18), a second screw (31) is rotatably connected to the bearing seat (30), the second screw (31) is threadedly connected to the baffle (32), and the ends of the first screw (16) and the second screw (31) are fixedly sleeved with pulleys (33), and the two pulleys (33) are connected by a belt (34).

6. The multi-station laser welding equipment for tubular parts according to claim 4, characterized in that: An elastic guide plate (22) is arranged above the ventilation hole (20); when the tubular member is cooled at the ventilation hole (20), the guide plate (22) will arch upwards.

7. The multi-station laser welding equipment for tubular parts according to claim 6, characterized in that: A pair of elastic fixing rods (25) are fixed on both sides of the material receiving platform (18); a rotating shaft (26) is rotatably connected between the two fixing rods (25) of the same group; the guide plate (22) is installed between the two rotating shafts (26); a guide sleeve (23) is fixed on both sides of the material receiving platform (18); a push rod (24) is inserted into the guide sleeve (23); the top end of the push rod (24) abuts against the guide plate (22); and the push rod (24) is connected to a push assembly.

8. The multi-station laser welding equipment for tubular parts according to claim 7, characterized in that: The push assembly comprises a second disk (29), a support plate (28) is fixed to the end of the support rod (4), the second disk (29) is fixed to the free end of the support plate (28), and the push rod (24) is fixed with a first disk (27) capable of contacting the edge of the second disk (29).

9. The multi-station laser welding equipment for tubular parts according to claim 1, characterized in that: The welding mechanism comprises a mounting frame (35), the top end of the mounting frame (35) is slidably connected to a welding machine (37), the top end of the mounting frame (35) is fixed with an electric push rod three (36), and the output shaft of the electric push rod three (36) is fixedly connected to the welding machine (37).

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