Three-way pipe laser welding machine

Abstract

The utility model discloses a laser welding machine for a three-way pipe, which is characterized in that a bearing seat is arranged on a turntable station of a worktable, a gear seat is rotatably arranged on the bearing seat, and a positioning mandrel is arranged in the gear seat in a lifting manner; a vertical pipe feeding mechanism, a transverse pipe feeding mechanism, a material pressing rotating mechanism and a finished product discharging mechanism are sequentially arranged on the rotating path of the rotating disc station, the vertical pipe feeding mechanism transmits vertical pipes to be arranged on the positioning mandrel in a sleeving mode, the transverse pipe feeding mechanism transmits transverse pipes to be arranged on the positioning mandrel in a sleeving mode, the transverse pipes are stacked at the upper ends of the vertical pipes, and the material pressing rotating mechanism is matched with the transverse pipes in a pressing and rotating mode. A laser welding mechanism is arranged on one side of the material pressing rotating mechanism, the laser welding mechanism is arranged on the sliding base and can move to be close to the welding position of the vertical pipe and the transverse pipe, a synchronous gear in rotating linkage with the material pressing rotating mechanism is further arranged below the material pressing rotating mechanism, and the synchronous gear is in meshing transmission with the passing gear base. Automatic welding of the three-way pipe is achieved, welding is accurate, and quality is reliable.

Description

Technical Field

[0001] This utility model relates to an improved invention of a laser welding machine, and more particularly to an improved invention of a three-way tube laser welding machine. Background Technology

[0002] Laser welding utilizes high-energy laser pulses to locally heat a small area of ​​material. The energy from the laser radiation diffuses into the material through heat conduction, melting it to form a specific molten pool. It is a novel welding method primarily used for welding thin-walled materials and precision parts. Therefore, laser welding has replaced argon arc welding for welding pipe fittings, enhancing the robustness of the welded structure and offering significant advantages.

[0003] A tee pipe consists of a horizontal pipe and a vertical pipe. One end of the vertical pipe is welded to the interface in the middle of the horizontal pipe. In the existing technology, the welding of the horizontal and vertical pipes of the tee pipe is usually carried out manually in conjunction with a laser welding machine and a positioning seat. This results in poor welding quality, low pass rate, low production efficiency, and increased labor costs, which cannot meet the production needs of a rapidly developing industrial society. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a reasonably structured, stable and efficient laser welding machine for three-way tubes.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: This three-way tube laser welding machine includes a worktable, characterized in that: a turntable is provided on the worktable, and several circumferentially distributed workstations are provided on the turntable. Each workstation is provided with a bearing seat, and a gear seat is rotatably provided on the bearing seat. A positioning mandrel is vertically movable within the gear seat. A vertical tube feeding mechanism, a horizontal tube feeding mechanism, a pressing and rotating mechanism, and a finished product discharging mechanism are sequentially arranged along the rotation path of each turntable workstation. The vertical tube feeding mechanism transmits… The vertical tube is sleeved on the positioning mandrel. The horizontal tube feeding mechanism transfers the horizontal tube sleeved on the positioning mandrel and stacks it on the upper end of the vertical tube. The feeding path of the horizontal tube feeding mechanism is also equipped with a horizontal tube correction mechanism. The pressing and rotating mechanism is in rotatable cooperation with the horizontal tube pressing mechanism. A laser welding mechanism is provided on one side of the pressing and rotating mechanism. The laser welding mechanism is set on the slide and can move close to the welding point of the vertical tube and the horizontal tube. A synchronous gear is also provided below the pressing and rotating mechanism and rotates with it. The synchronous gear meshes with the gear seat that passes through it for transmission.

[0006] The horizontal tube correction mechanism includes a lifting shaft, a positioning seat at the upper end of the lifting shaft, and a number of mutually cooperating pneumatic positioning claws on the positioning seat that can move radially. The claw ends of the positioning claws can extend into the middle interface of the horizontal tube, the claw arms of the positioning claws can support the middle interface of the horizontal tube, and the positioning claws are also provided with connecting blocks that support the left and right ends of the horizontal tube.

[0007] The turntable is equipped with a horizontal tube positioning structure, which includes a lifting guide rod that passes through the turntable. The upper end of the lifting guide rod is equipped with a fixed seat, and the fixed seat is equipped with an adjustable positioning block. The positioning block is located on the rear side of the horizontal tube after rotation and abuts against the middle part. The lower end of the lifting guide rod is equipped with a roller and a track. The track is equipped with a notch for the lifting guide rod to descend and avoid the horizontal tube rotation welding. Below the notch is a cylinder for driving the lifting guide rod to rise and reset.

[0008] The pressing and rotating mechanism includes a pressing and rotating shaft and a mounting platform. The pressing and rotating shaft is mounted on the mounting platform and can be raised, lowered, and rotated. The pressing and rotating shaft is equipped with a gear that is circumferentially linked and axially sliding. The gear is connected to a motor drive. The upper end of the pressing and rotating shaft is rotatably connected to a lifting seat.

[0009] The lower end of the pressing rotating shaft is provided with a pressing block, and the pressing block is provided with a V-shaped pressing groove. The V-shaped pressing groove makes multiple contact and pressing fit with the upper contour of the horizontal tube.

[0010] Both the vertical tube feeding mechanism and the horizontal tube feeding mechanism include a feeding channel and a feeding robot. The feeding channel includes a conveyor belt, guide plates located on both sides of the conveyor belt, and a baffle plate located at the front end of the conveyor belt. The baffle plate and the front end of the guide plate form an interval for the feeding robot to pick up materials.

[0011] The horizontal tube feeding mechanism has two sets of feeding robots that cooperate with each other and deliver the tubes step by step, respectively realizing the transfer of the horizontal tube from the feeding station to the correction station and from the correction station to the turntable station.

[0012] The finished product unloading mechanism includes an unloading robot and an unloading channel. The unloading robot conveys the welded finished product to the unloading channel.

[0013] The discharge robot grips the vertical pipe by moving laterally, and then unloads the material into the discharge channel by lifting and moving longitudinally. The discharge robot is equipped with a baffle to assist in unloading along its lateral return path.

[0014] The beneficial effects of this utility model are that the improved three-way tube laser welding machine transmits the horizontal and vertical tubes to the turntable station by the horizontal tube feeding mechanism and the vertical tube feeding mechanism, respectively, and they are nested on the positioning mandrel located on the turntable station. During the transmission of the horizontal tube, the horizontal tube is corrected by the horizontal tube correction mechanism to ensure that the horizontal and vertical tubes are accurately stacked. Then, the horizontal tube is pressed and rotated by the pressing and rotating mechanism for welding by the laser welding mechanism. After welding, the finished product is sent to the discharge channel by the finished product discharge mechanism. The above realizes the automated welding of the three-way tube, improves production efficiency, and ensures accurate welding and reliable quality. Attached Figure Description

[0015] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This utility model Figure 1 Enlarged view of part A.

[0018] Figure 3 This is a side view of the structure of this utility model.

[0019] Figure 4 This utility model Figure 3 Enlarged view of part B.

[0020] Figure 5 This is another view of the structure of this utility model. Detailed Implementation

[0021] The accompanying drawings illustrate the structure of this utility model, and further details will be described below with reference to the drawings. In this embodiment, see the attached drawings. Figure 1-5 The laser welding machine for three-way tubes includes a worktable with a turntable 1. The turntable 1 has several circumferentially distributed workstations, each with a bearing seat. A gear seat 11 is rotatably mounted on the bearing seat, and a positioning mandrel 12 is vertically mounted inside the gear seat 11. Along the rotation path of each workstation on the turntable 1 are sequentially arranged a vertical tube feeding mechanism 2, a horizontal tube feeding mechanism 3, a pressing and rotating mechanism 4, and a finished product discharging mechanism 5. The vertical tube feeding mechanism 2 transfers the vertical tube to the positioning mandrel 12, and the horizontal tube... The material feeding mechanism 3 transmits the horizontal tube sleeve onto the positioning mandrel 12 and stacks it on the upper end of the vertical tube. The horizontal tube feeding mechanism 3 also has a horizontal tube correction mechanism 9 on its feeding path. The pressing and rotating mechanism 4 is in rotatable cooperation with the horizontal tube pressing mechanism. The pressing and rotating mechanism 4 is equipped with a laser welding mechanism 6 on one side. The laser welding mechanism 6 is set on the slide and can move close to the welding point of the vertical tube and the horizontal tube. The pressing and rotating mechanism 4 is also equipped with a synchronous gear 7 that rotates and is linked with it. The synchronous gear 7 meshes and drives the gear seat 11 that passes through it.

[0022] The working principle of this utility model is as follows: During the intermittent rotation of the turntable 1, the following processes are performed in sequence: First, the vertical tube feeding mechanism 2 transmits the vertical tube to the positioning mandrel 12 at the station of the turntable 1, and the positioning mandrel 12 positions it. Second, the horizontal tube feeding mechanism 3 transmits the horizontal tube, and the horizontal tube correction mechanism 9 corrects it so that the middle interface of the horizontal tube is sleeved on the positioning mandrel 12 and stacked on the upper end of the vertical tube. The welding area of ​​the horizontal tube and the vertical tube corresponds to the welding groove on the outer periphery of the positioning mandrel 12. Third, the pressing and rotating mechanism 4 presses the horizontal tube and drives the horizontal tube to rotate. At the same time, the synchronous gear 7 of the pressing and rotating mechanism 4 meshes with the gear seat 11 that passes through, driving the vertical tube to rotate synchronously, so as to avoid the horizontal tube and the vertical tube from rotating relative to each other and affecting the welding quality. Fourth, the laser welding mechanism 6 performs spot welding and positioning on the welding area of ​​the vertical tube and the horizontal tube. After the positioning mandrel 12 descends and disengages, the horizontal tube and the vertical tube are fully welded in one circle. After the welding is completed, the finished product is sent out for collection by the finished product discharge mechanism 5.

[0023] As a further improved embodiment, the horizontal tube correction mechanism 9 includes a lifting shaft 91, with a positioning seat 92 at the upper end of the lifting shaft 91. Several pneumatic positioning claws 93 are radially movable on the positioning seat 92. The claw ends of the positioning claws 93 can extend into the middle interface of the horizontal tube, and the claw arms of the positioning claws 93 can support the middle interface of the horizontal tube. The positioning claws 93 also have connecting blocks 94 supporting the left and right ports of the horizontal tube. To prevent the horizontal tube from shifting position during gripping, the positioning claws 93 correct its position. Specifically, the lifting shaft 91 is driven upward by a cylinder, the claw ends of the positioning claws 93 extend into the middle interface of the horizontal tube, the claw arms of the positioning claws 93 support and correct the middle interface of the horizontal tube, the connecting blocks 94 on the positioning claws 93 support and correct the left and right ports of the horizontal tube, and then the positioning claws 93 move radially to correct the position of the horizontal tube. Preferably, the positioning claws 93 have four sets of mutually cooperating front, rear, left, and right positions, and are driven by a combined cylinder, thus assisting in correction in four directions.

[0024] As a further improved embodiment, the horizontal tube positioning structure 8 includes a lifting guide rod 81, which passes through the turntable 1. A fixed seat 82 is provided at the upper end of the lifting guide rod 81, and an adjustable positioning block 83 is provided on the fixed seat 82. Specifically, the positioning block 83 is disposed within a groove in the fixed seat 82, can move towards the horizontal tube, and is fixed by fasteners to accommodate horizontal tubes of different sizes. The positioning block 83 is located on the rear side of the horizontal tube after rotation and abuts against the middle part. The lower end of the lifting guide rod 81 is provided with... The roller 84 is equipped with a track 85. The track 85 has a notch for the lifting guide rod 81 to descend and avoid the horizontal tube during rotational welding. Below the notch is a cylinder that drives the lifting guide rod 81 to rise and reset. The cylinder is in contact with the lower end of the lifting guide rod 81 through a transition plate. That is, when the horizontal tube is being rotated and welded, the lifting guide rod 81 descends through the notch, allowing the positioning block 83 to avoid the horizontal tube. After welding is completed, the cylinder drives the lifting guide rod to rise, causing its roller to return to the guide rail. The positioning block 83 continues to position the horizontal tube.

[0025] As a further improved embodiment, the pressing and rotating mechanism 4 includes a pressing and rotating shaft 41 and a mounting platform 42. The pressing and rotating shaft 41 is rotatably mounted on the mounting platform 42 and is equipped with a circumferentially linked and axially sliding gear 43. The gear 43 is connected to the motor 44 for transmission. The upper end of the pressing and rotating shaft 41 is rotatably connected to the lifting seat 45. Specifically, the output shaft of the motor 44 is connected to a transmission shaft, which is equipped with a first pulley and a second pulley distributed vertically. The first pulley is connected to a third pulley via a first synchronous belt. The third pulley is equipped with a first gear arranged coaxially, which meshes with the aforementioned gear 43. The second pulley is connected to a fourth pulley via a second synchronous belt. The fourth pulley is coaxially arranged with the synchronous gear 7, thereby realizing that the synchronous gear 7 and the pressing and rotating shaft 41 rotate synchronously. The upper end of the pressing and rotating shaft 41 is rotatably connected to the lifting seat 45, that is, it can rotate relative to the shaft during the lifting process. The lifting seat 45 is preferably driven by a cylinder for lifting and is equipped with a lifting guide column. During operation, the lifting seat 45 drives the pressing rotating shaft 41 to descend and press the upper end of the horizontal tube. Then, the motor 44 drives the gear 43 to rotate the pressing rotating shaft 41, causing the horizontal tube to rotate.

[0026] As a further improved specific implementation, the lower end of the pressing rotating shaft 41 is provided with a pressing block 46, and the pressing block 46 is provided with a V-shaped pressing groove 47. The V-shaped pressing groove 47 makes multi-point contact with the upper contour of the horizontal tube and presses it tightly, so as to stabilize and position the horizontal tube.

[0027] As a further improved implementation, both the vertical pipe feeding mechanism 2 and the horizontal pipe feeding mechanism 3 include a feeding channel and a feeding robot. The feeding channel includes a conveyor belt, guide plates located on both sides of the conveyor belt, and a baffle plate located at the front end of the conveyor belt. The baffle plate and the front end of the guide plate form an interval for the feeding robot to pick up materials. During operation, the vertical pipes are arranged vertically and side by side on the conveyor belt and conveyed to the baffle plate position. The feeding robot then picks them up and conveys them to the turntable 1 station. The horizontal pipes are arranged horizontally and axially on the conveyor belt and conveyed to the baffle plate position. The feeding robot then picks them up and conveys them to the turntable 1 station. The feeding robot holding the vertical pipes has one pair of grippers, and the feeding robot holding the horizontal pipes has two pairs of grippers.

[0028] As a further improvement, the loading robot of the horizontal tube loading mechanism 3 is equipped with two sets of cooperative, step-by-step delivery arms, which respectively realize the transfer of the horizontal tube from the loading station to the correction station and from the correction station to the turntable 1 station, thereby improving the transfer efficiency.

[0029] As a further improved specific implementation, the finished product unloading mechanism 5 includes an unloading robot 52 and an unloading channel 53. The unloading robot 52 conveys the welded finished product to the unloading channel 53. Preferably, the unloading robot 52 clamps the vertical pipe by moving laterally, and then unloads it to the unloading channel 53 by lifting and moving longitudinally in sequence. The unloading robot 52 is provided with a baffle 51 for auxiliary unloading on its lateral return path. That is, when the unloading robot 52 releases the vertical pipe, it prevents the horizontal pipe from being placed on the unloading robot 52 and unable to be unloaded. On the reset path of the unloading robot 52, the baffle 51 blocks the three-way pipe, causing it to fall into the unloading channel.

[0030] In summary, the above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A tee laser welding machine comprising a worktable, characterized in that: The workbench is provided with a rotating disc, the rotating disc is provided with a plurality of workstations distributed in a circumferential direction, each workstation is provided with a bearing seat, the bearing seat is rotatably provided with a gear seat, the gear seat is provided with a positioning mandrel which is liftable, the rotating path of the workstation of the rotating disc is sequentially provided with a vertical pipe feeding mechanism, a horizontal pipe feeding mechanism, a pressing rotating mechanism and a finished product discharging mechanism, the vertical pipe feeding mechanism is provided with a vertical pipe which is sleeved on the positioning mandrel, the horizontal pipe feeding mechanism is provided with a horizontal pipe which is sleeved on the positioning mandrel and stacked on the upper end of the vertical pipe, and the horizontal pipe feeding mechanism is further provided with a horizontal pipe deviation rectifying mechanism on the feeding path of the horizontal pipe feeding mechanism, the pressing rotating mechanism is in close contact with the horizontal pipe, one side of the pressing rotating mechanism is provided with a laser welding mechanism, the laser welding mechanism is arranged on a sliding seat and can be moved to be close to the welding position of the vertical pipe and the horizontal pipe, and the pressing rotating mechanism is further provided with a synchronous gear which is in rotational linkage with the pressing rotating mechanism, the synchronous gear is in meshing transmission with the gear seat.

2. The tee laser welder of claim 1, wherein: The horizontal pipe deviation rectifying mechanism comprises a lifting shaft, the lifting shaft is provided with a positioning seat at the upper end, a plurality of mutually matched pneumatic positioning claws are movably arranged on the positioning seat in a radial direction, the claw end of the positioning claw can be inserted into the middle interface of the horizontal pipe, the claw arm of the positioning claw can support the middle interface of the horizontal pipe, and the positioning claw is further provided with a connecting block which supports the left and right ends of the horizontal pipe.

3. The tee laser welder of claim 1, wherein: The rotating disc is provided with a horizontal pipe positioning structure, the horizontal pipe positioning structure comprises a lifting guide rod, the lifting guide rod is arranged through the rotating disc, the lifting guide rod is provided with a fixing seat at the upper end, the fixing seat is provided with a positioning block which can be adjusted in position, the positioning block is located at the rear side of the horizontal pipe rotation and abuts against the middle part of the horizontal pipe, the lifting guide rod is provided with a roller at the lower end, the roller is provided with a track, the track is provided with a gap for the lifting guide rod to descend and avoid the horizontal pipe rotation welding, and a cylinder is arranged below the gap to drive the lifting guide rod to rise and reset.

4. The tee laser welder of claim 1, wherein: The pressing rotating mechanism comprises a pressing rotating shaft and a mounting table, the pressing rotating shaft is liftable and rotatable and arranged through the mounting table, the pressing rotating shaft is provided with a circumferential linkage and axial sliding gear, the gear is connected with a motor transmission, and the upper end of the pressing rotating shaft is rotatably connected with a lifting seat.

5. The tee laser welder of claim 4, wherein: The lower end of the pressing rotating shaft is provided with a pressing block, the pressing block is provided with a V-shaped pressing groove, and the V-shaped pressing groove is in close contact and pressing cooperation with the upper part of the horizontal pipe.

6. The tee laser welder of claim 1, wherein: The vertical pipe feeding mechanism and the horizontal pipe feeding mechanism both comprise a feeding channel and a feeding manipulator, the feeding channel comprises a conveying belt, guide plates arranged on both sides of the conveying belt and a blocking plate arranged at the front end of the conveying belt, and the blocking plate and the front end of the guide plate form a space for the feeding manipulator to take materials.

7. The tee laser welder of claim 6, wherein: The feeding manipulator of the horizontal pipe feeding mechanism is provided with two groups which are mutually cooperative and gradually deliver, and the two groups respectively realize the transmission of the horizontal pipe from the feeding workstation to the deviation rectifying workstation and the transmission of the horizontal pipe from the deviation rectifying workstation to the rotating disc workstation.

8. The tee laser welder of claim 1, wherein: The finished product discharging mechanism comprises a discharging manipulator and a discharging channel, and the discharging manipulator conveys the welded finished product to the discharging channel.

9. The tee laser welder of claim 8, wherein: The discharging manipulator moves laterally to clamp the vertical pipe, and then lifts and moves longitudinally to unload the vertical pipe to the discharging channel, and the transverse return path of the discharging manipulator is provided with a baffle for assisting unloading.

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