A pipe joint laser welding apparatus

Abstract

The utility model provides a kind of pipe joint laser welding equipment, it is equipped with first welding tooling, second welding tooling, laser welding mechanism on cabinet, first welding tooling, second welding tooling all include first Y axial linear drive arrangement, tooling base, clamping rotary drive mechanism, first rotary support mechanism, movable rotary support mechanism, first rotary support mechanism is used to provide rotary support to one end of product, clamping rotary drive mechanism includes support, clamp, material rotating servo motor, movable rotary support mechanism includes second rotary support mechanism, horizontal drive air cylinder, second rotary support mechanism is used to provide rotary support to the other end of product;Laser welding mechanism includes X axial linear drive arrangement, second Y axial linear drive arrangement, vertical seat, Z axial linear drive arrangement, cross arm, rotary drive device, and the laser welding head of rotary drive device driving connection, can save manpower, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of pipe joint welding equipment, and more particularly to a pipe joint laser welding equipment. Background Technology

[0002] As attached Figure 7 As shown, a threaded pipe assembly 5 is available on the market. It consists of a threaded pipe 50, a first connector 51, and a second connector 52. The first connector 51 and the second connector 52 need to be assembled at both ends of the threaded pipe 50, and welding operations are required at the connections between the first connector 51 and the threaded pipe 50, and between the second connector 52 and the threaded pipe 50. Currently, the welding operation of this threaded pipe assembly 5 requires manual operation, which wastes manpower and results in high labor intensity and low production efficiency. Summary of the Invention

[0003] The problem to be solved by this utility model is to provide a laser welding equipment for pipe joints, which saves manpower and improves production efficiency.

[0004] To solve the above-mentioned technical problems, a laser welding equipment for pipe joints provided by this utility model is proposed, comprising a cabinet, on which a first welding fixture, a second welding fixture, and a laser welding mechanism are arranged; the first welding fixture and the second welding fixture each include a first Y-axis linear drive device disposed on the cabinet, a fixture base driven and connected to the first Y-axis linear drive device, a clamping rotary drive mechanism, a first rotary support mechanism, and a movable rotary support mechanism. The first rotary support mechanism is used to provide rotary support for one end of the product. The clamping rotary drive mechanism includes a support disposed on the fixture base, a clamp disposed on the support, and a transfer servo disposed on the support for driving the clamp to rotate. The motor and movable rotary support mechanism include a second rotary support mechanism and a horizontal drive cylinder mounted on a tooling base for driving the second rotary support mechanism to move along the X-axis direction. The second rotary support mechanism is used to provide rotary support for the other end of the product. The laser welding mechanism includes an X-axis linear drive device mounted on a cabinet, a second Y-axis linear drive device driven and connected to the X-axis linear drive device, a stand driven and connected to the second Y-axis linear drive device, a Z-axis linear drive device mounted on the stand, a cross arm driven and connected to the Z-axis linear drive device, a rotary drive device mounted at one end of the cross arm, and a laser welding head driven and connected to the rotary drive device.

[0005] Preferably, both the first rotary support mechanism and the second rotary support mechanism include an X-axis sliding plate slidably connected to the tooling base along the X-axis direction, a lower roller seat disposed on the X-axis sliding plate, a lifting cylinder disposed on the X-axis sliding plate, and an upper roller seat drivenly connected to the lifting cylinder. Two parallel lower rollers are rotatably connected to the lower roller seat, and an upper roller is rotatably connected to the upper roller seat. The horizontal drive cylinder is drivenly connected to the X-axis sliding plate of the second rotary support mechanism.

[0006] Preferably, a through hole is provided through the support, and the clamp includes a sleeve fixedly connected to the through hole, a tightening guide sleeve fixedly connected to the sleeve, a clamping cylinder movably disposed in the tightening guide sleeve, and a clamping cylinder driving cylinder disposed at one end of the sleeve. The output shaft of the clamping cylinder driving cylinder is rotatably connected to the clamping cylinder, and a material transfer servo motor is driven connected to the clamping cylinder. A tapered hole is provided at one end of the inner ring of the tightening guide sleeve, and a tapered cylinder part matching the tapered hole is provided at one end of the clamping cylinder part. A plurality of dividing grooves are evenly distributed on the tapered cylinder part, and the plurality of dividing grooves divide the tapered cylinder part into a plurality of tapered elastic clamping pieces.

[0007] Preferably, it further includes a cover mounted on the cabinet, with two inlet / outlet windows on the front of the cover. Inside the cover are two movable door mechanisms. Each movable door mechanism includes a door panel slidably connected to the cover along the Z-axis for closing the inlet / outlet windows, and a lifting drive mechanism. The lifting drive mechanism includes a door-pulling cylinder mounted on the inner wall of the cover, a steel cable connected to the output shaft of the door-pulling cylinder, and a first pulley group and a second pulley group mounted on the inner wall of the cover. The first pulley group includes a first pulley seat fixedly connected to the inner wall of the cover and two first pulleys rotatably connected in parallel to the first pulley seat. The second pulley group includes a second pulley seat fixedly connected to the inner wall of the cover and two second pulleys rotatably connected in parallel to the second pulley seat. The other end of the steel cable passes sequentially between the two first pulleys and between the two second pulleys before being fixedly connected to the top of the door panel.

[0008] Preferably, a glass window is provided on the door panel.

[0009] The beneficial effects of this utility model are as follows: This utility model provides a laser welding equipment for pipe joints. The first and second welding fixtures can be manually loaded and unloaded. The assembled threaded pipe assembly is placed between the first and second rotary support mechanisms. The first and second rotary support mechanisms provide rotary support to both ends of the threaded pipe assembly. A horizontal drive cylinder pushes the second rotary support mechanism to move towards the clamp side. The threaded pipe assembly moves towards the clamp side under the drive of the second rotary support mechanism, allowing the clamp to hold one end of the first joint. A first Y-axis linear drive device drives the fixture base forward to deliver the threaded pipe assembly. On the laser welding mechanism side, the X-axis linear drive device, the second Y-axis linear drive device, and the Z-axis linear drive device can drive the laser welding head to move along the X-axis, Y-axis, and Z-axis directions respectively when they are working. When the rotary drive device is working, it can drive the laser welding head to rotate. By driving the fixture to rotate through the material transfer servo motor, the threaded tube assembly can be rotated so that the laser welding head can perform welding operations on the connection between the first joint, the second joint, and the threaded tube. After the product welding is completed, the tooling base is driven to move backward by the first Y-axis linear drive device, so that the product can be taken out between the first rotary support mechanism and the second rotary support mechanism. This can improve the automation level of welding, save manpower, and improve production efficiency. Attached Figure Description

[0010] Figure 1 A schematic diagram illustrating the external structure of this utility model is provided.

[0011] Figure 2 A cross-sectional view of the present invention is shown.

[0012] Figure 3 A schematic diagram illustrating the structure of the second welding fixture of this utility model is shown.

[0013] Figure 4 A schematic diagram illustrating the structure of the laser welding mechanism of this utility model is shown.

[0014] Figure 5 A cross-sectional view of the second welding fixture of this utility model is shown.

[0015] Figure 6 This utility model is illustrated. Figure 5 A magnified schematic diagram of part A in the middle.

[0016] Figure 7 A schematic diagram illustrating the external structure of the threaded pipe assembly of this utility model is provided.

[0017] Reference numerals in the attached figures: 1. First welding fixture; 10. First Y-axis linear drive device; 11. Fixture base; 12. Clamping rotary drive mechanism; 120. Support; 121. Transfer servo motor; 13. First rotary support mechanism; 130. X-axis sliding plate; 131. Lower roller seat; 131. Lower roller; 131a. Lifting cylinder; 132. Upper roller seat; 133. Upper roller; 133a. Movable rotary support mechanism; 14. Second rotary support mechanism; 140. Horizontal drive cylinder; 141. Fixture; 15. Sleeve; 150. Tightening guide sleeve; 151. Tapered hole; 151a. Clamping cylinder; 152. Tapered cylinder. Part 152a, dividing groove 152b, conical elastic clamp 152c, second welding fixture 2, laser welding mechanism 3, X-axis linear drive device 30, second Y-axis linear drive device 31, stand 32, Z-axis linear drive device 33, cross arm 34, rotary drive device 35, laser welding head 36, machine cover 4, inlet / outlet window 40, movable door panel mechanism 41, door panel 410, pull door drive cylinder 411, steel rope 412, first pulley group 413, second pulley group 414, threaded pipe assembly 5, threaded pipe 50, first joint 51, second joint 52. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure.

[0019] Based on the embodiments described in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.

[0020] refer to Figure 1-7 .

[0021] This utility model provides a laser welding equipment for pipe joints, including a cabinet. The cabinet is equipped with a first welding fixture 1, a second welding fixture 2, and a laser welding mechanism 3. Both the first welding fixture 1 and the second welding fixture 2 include a first Y-axis linear drive device 10 mounted on the cabinet, a fixture base 11 driven by the first Y-axis linear drive device 10, a clamping rotary drive mechanism 12, a first rotary support mechanism 13, and a movable rotary support mechanism 14. The first rotary support mechanism 13 provides rotary support for one end of the product. The clamping rotary drive mechanism 12 includes a support 120 mounted on the fixture base 11, a clamp 15 mounted on the support 120, and a transfer servo motor 121 mounted on the support 120 for driving the clamp 15 to rotate. The support mechanism 14 includes a second rotary support mechanism 140 and a horizontal drive cylinder 141 mounted on the tooling base 11 for driving the second rotary support mechanism 140 to move along the X-axis direction. The second rotary support mechanism 140 is used to provide rotary support for the other end of the product. The laser welding mechanism 3 includes an X-axis linear drive device 30 mounted on the cabinet, a second Y-axis linear drive device 31 driven and connected to the X-axis linear drive device 30, a stand 32 driven and connected to the second Y-axis linear drive device 31, a Z-axis linear drive device 33 mounted on the stand 32, a cross arm 34 driven and connected to the Z-axis linear drive device 33, a rotary drive device 35 mounted at one end of the cross arm 34, and a laser welding head 36 driven and connected to the rotary drive device 35.

[0022] Its working principle is as follows: The first welding fixture 1 and the second welding fixture 2 can be manually loaded and unloaded. The assembled threaded pipe assembly 5 is placed between the first rotating support mechanism 13 and the second rotating support mechanism 140. The first rotating support mechanism 13 and the second rotating support mechanism 140 provide rotational support to both ends of the threaded pipe 50 of the threaded pipe assembly 5. The horizontal drive cylinder 141 pushes the second rotating support mechanism 140 towards the clamp 15. The threaded pipe assembly 5 moves towards the clamp 15 under the drive of the second rotating support mechanism 140, allowing the clamp 15 to clamp one end of the first connector 51. The first Y-axis linear drive device 10 drives the fixture base 11 forward to deliver the threaded pipe assembly 5 to the laser welding mechanism 3. When the axial linear drive device 30, the second Y-axis linear drive device 31, and the Z-axis linear drive device 33 are working, they can drive the laser welding head 36 to move along the X-axis, Y-axis, and Z-axis directions respectively. When the rotary drive device 35 is working, it can drive the laser welding head 36 to rotate. By driving the fixture 15 to rotate through the transfer servo motor 121, the threaded tube assembly 5 can be rotated, so that the laser welding head 36 can perform welding operations on the connection between the first joint 51, the second joint 52 and the threaded tube 50. After the product welding is completed, the tooling base 11 is driven to move backward by the first Y-axis linear drive device 10, so that the product can be taken out between the first rotary support mechanism 13 and the second rotary support mechanism 140. This can improve the automation level of welding, save manpower, and improve production efficiency.

[0023] Based on the above embodiments, both the first rotary support mechanism 13 and the second rotary support mechanism 140 include an X-axis sliding plate 130 slidably connected to the tooling base 11 along the X-axis direction, a lower roller seat 131 disposed on the X-axis sliding plate 130, a lifting cylinder 132 disposed on the X-axis sliding plate 130, and an upper roller seat 133 drivenly connected to the lifting cylinder 132. Two parallel lower rollers 131a are rotatably connected to the lower roller seat 131, and an upper roller 133a is rotatably connected to the upper roller seat 133. The horizontal drive cylinder 141 is drivenly connected to the X-axis sliding plate 130 of the second rotary support mechanism 140. During loading, the end of the threaded tube 50 is placed on the two lower rollers 131a. The upper roller seat 133 is driven to move downward by the lifting cylinder 132 so that the upper roller 133a presses down on the end of the threaded tube 50 to prevent the end of the threaded tube 50 from tilting up. Then, the X-axis slide plate 130 of the second rotary support mechanism 140 is driven to move towards the clamp 15 by the horizontal drive cylinder 141 so that the clamp 15 clamps one end of the first connector 51.

[0024] Based on the above embodiments, a through hole is provided through the support 120, and the clamp 15 includes a sleeve 150 fixedly connected to the through hole, a tightening guide sleeve 151 fixedly connected to the sleeve 150, a clamping cylinder 152 movably disposed in the tightening guide sleeve 151, and a clamping cylinder driving cylinder 153 disposed at one end of the sleeve 150. The output shaft of the clamping cylinder driving cylinder 153 is rotatably connected to the clamping cylinder 152, and the material transfer servo motor 121 is drivingly connected to the clamping cylinder 152. A tapered hole 151a is provided at one end of the inner ring of the tightening guide sleeve 151, and a tapered cylinder portion 152a matching the tapered hole 151a is provided at one end of the clamping cylinder 152. A plurality of dividing grooves 152b are evenly distributed on the tapered cylinder portion 152a, and the plurality of dividing grooves 152b divide the tapered cylinder portion 152a into a plurality of tapered elastic clamping pieces 152c. After one end of the first connector 51 is pushed into the conical cylinder 152a, the clamping cylinder 152 is driven to retract along the tightening guide sleeve 151 by the clamping cylinder drive cylinder 153. The outer walls of each conical elastic clamp 152c will abut against the inner wall of the conical hole 151a, causing each conical elastic clamp 152c to tighten and clamp one end of the first connector 51. The clamping cylinder 152 is driven to rotate by the transfer servo motor 121, which in turn drives the threaded tube assembly 5 to rotate. The threaded tube 50 will rotate stably under the rotational support of the two lower rollers 131a and the upper roller 133a. After welding is completed, the clamping cylinder 152 is driven to advance along the tightening guide sleeve 151 by the clamping cylinder drive cylinder 153, so that each conical elastic clamp 152c can regain its elasticity and release the first connector 51, allowing the product to be removed.

[0025] Based on the above embodiments, the system further includes a housing 4 mounted on a cabinet. The front of the housing 4 has two inlet / outlet windows 40. Inside the housing 4 are two movable door mechanisms 41. Each movable door mechanism 41 includes a door panel 410 slidably connected within the housing 4 along the Z-axis direction for closing the inlet / outlet windows 40, and a lifting drive mechanism. The lifting drive mechanism includes a door-pulling cylinder 411 mounted on the inner wall of the housing 4, and a steel cable 412 connected to the output shaft of the door-pulling cylinder 411. A first pulley assembly 413 and a second pulley assembly 414 are placed on the inner wall of the machine cover 4. The first pulley assembly 413 includes a first pulley seat fixedly connected to the inner wall of the machine cover 4 and two first pulleys rotatably connected in parallel to the first pulley seat. The second pulley assembly 414 includes a second pulley seat fixedly connected to the inner wall of the machine cover 4 and two second pulleys rotatably connected in parallel to the second pulley seat. The other end of the steel rope 412 passes between the two first pulleys and between the two second pulleys in sequence and is then fixedly connected to the top of the door panel 410. Initially, the tooling base 11 is located outside the machine cover 4, and the door panel 410 is in the open state, which facilitates the operator to perform material loading operations on the first welding tooling 1 and the second welding tooling 2. After loading is completed, the tooling base 11 is driven into the machine cover 4 by the first Y-axis linear drive device 10, so that the threaded tube assembly 5 moves to the side of the laser welding mechanism 3. The output shaft of the pull door drive cylinder 411 extends, the door plate 410 descends and closes the inlet / outlet window 40. At this time, the threaded tube assembly 5 can be welded by the laser welding mechanism 3, reducing the damage of the laser to the human eye. After the welding process is completed, the output shaft of the pull door drive cylinder 411 retracts, the door plate 410 is pulled up, and the tooling base 11 is driven out of the machine cover 4 by the first Y-axis linear drive device 10, which facilitates the unloading operation of the staff.

[0026] Based on the above embodiments, a glass window is provided on the door panel 410, through which the working status inside the machine cover 4 can be observed.

[0027] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A laser welding device for pipe joints, comprising a cabinet, characterized in that, The cabinet is equipped with a first welding fixture, a second welding fixture, and a laser welding mechanism. Both the first and second welding fixtures include a first Y-axis linear drive device mounted on the cabinet, a fixture base connected to the first Y-axis linear drive device, a clamping rotary drive mechanism, a first rotary support mechanism, and a movable rotary support mechanism. The first rotary support mechanism provides rotary support for one end of the product. The clamping rotary drive mechanism includes a support mounted on the fixture base, a clamp mounted on the support, and a transfer servo motor mounted on the support for driving the clamp to rotate. The movable rotary support mechanism includes a second rotary drive mechanism. The support mechanism includes a horizontal drive cylinder mounted on the tooling base for driving the second rotary support mechanism to move along the X-axis direction, the second rotary support mechanism being used to provide rotary support for the other end of the product; the laser welding mechanism includes an X-axis linear drive device mounted on the cabinet, a second Y-axis linear drive device driven and connected to the X-axis linear drive device, a stand driven and connected to the second Y-axis linear drive device, a Z-axis linear drive device mounted on the stand, a cross arm driven and connected to the Z-axis linear drive device, a rotary drive device mounted at one end of the cross arm, and a laser welding head driven and connected to the rotary drive device.

2. The laser welding equipment for pipe joints according to claim 1, characterized in that, Both the first and second rotary support mechanisms include an X-axis sliding plate slidably connected to the tooling base along the X-axis direction, a lower roller seat disposed on the X-axis sliding plate, a lifting cylinder disposed on the X-axis sliding plate, and an upper roller seat drivenly connected to the lifting cylinder. Two parallel lower rollers are rotatably connected to the lower roller seat, and an upper roller is rotatably connected to the upper roller seat. The horizontal drive cylinder is drivenly connected to the X-axis sliding plate of the second rotary support mechanism.

3. The laser welding equipment for pipe joints according to claim 2, characterized in that, The support has a through hole, and the clamp includes a sleeve fixedly connected to the through hole, a tightening guide sleeve fixedly connected to the sleeve, a clamping cylinder movably disposed in the tightening guide sleeve, and a clamping cylinder driving cylinder disposed at one end of the sleeve. The output shaft of the clamping cylinder driving cylinder is rotatably connected to the clamping cylinder, and the material transfer servo motor is drivingly connected to the clamping cylinder. One end of the inner ring of the tightening guide sleeve is provided with a tapered hole, and one end of the clamping cylinder is provided with a tapered cylinder portion that matches the tapered hole. Several dividing grooves are evenly distributed on the tapered cylinder portion, and the several dividing grooves divide the tapered cylinder portion into several tapered elastic clamping pieces.

4. The laser welding equipment for pipe joints according to claim 3, characterized in that, It also includes a cover mounted on the cabinet, with two inlet / outlet windows on the front of the cover. Inside the cover are two movable door mechanisms, each comprising a door panel slidably connected within the cover along the Z-axis for closing the inlet / outlet windows, and a lifting drive mechanism. The lifting drive mechanism includes a door-pulling cylinder mounted on the inner wall of the cover, a steel cable connected to the output shaft of the door-pulling cylinder, and a first pulley group and a second pulley group mounted on the inner wall of the cover. The first pulley group includes a first pulley seat fixedly connected to the inner wall of the cover and two first pulleys rotatably connected in parallel to the first pulley seat. The second pulley group includes a second pulley seat fixedly connected to the inner wall of the cover and two second pulleys rotatably connected in parallel to the second pulley seat. The other end of the steel cable passes sequentially between the two first pulleys and between the two second pulleys before being fixedly connected to the top of the door panel.

5. The laser welding equipment for pipe joints according to claim 4, characterized in that, The door panel is equipped with a glass viewing window.

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