Pipe plug laser welding machine

Abstract

The utility model provides a pipe plug laser welding machine which comprises a cabinet, a rotary clamping mechanism, a hold-down mechanism and a laser welding mechanism, the rotary clamping mechanism and the hold-down mechanism are arranged on the cabinet along a first horizontal direction, the rotary clamping mechanism is configured to clamp a pipe extending along the first horizontal direction, and the hold-down mechanism is configured to clamp the pipe extending along the first horizontal direction. The mounting end of the to-be-mounted plug of the pipe faces the pressing mechanism; the pressing mechanism is configured to fixedly hold the plug and is configured to press the plug to the mounting end of the pipe; the laser welding mechanism is arranged on the machine cabinet, the laser welding mechanism is configured to weld a plug to the mounting end of the pipe, and the rotary clamping mechanism is further configured to drive the pipe to rotate in the welding process. The pipe plug welding device is not affected by vertical height limitation and is suitable for plug welding of pipes with various lengths.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of laser equipment production, specifically a pipe plug laser welding machine. BACKGROUND

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

[0003] In the process of processing and production, in order to plug the end hole of the circular pipe, the plug laser welding machine is used to laser weld the plug to the end of the circular pipe. The existing plug laser welding machine is generally of a vertical structure, and due to the limited height of the workshop, it is difficult to implement plug welding on long-size pipes. In addition, the existing plug laser welding machine cannot rotate the pipe during the welding process, so it must be controlled by the rotation driving module and the galvanometer to accurately control the movement of the laser along the circumference of the end of the pipe to complete the welding of the plug. The control process is relatively complex. SUMMARY

[0004] To solve the above technical problems of the existing plug laser welding machine, the utility model provides a pipe plug laser welding machine, and the specific technical scheme is as follows:

[0005] A pipe plug laser welding machine, comprising a cabinet, a rotating clamping mechanism, a pressing mechanism and a laser welding mechanism, wherein:

[0006] The rotating clamping mechanism and the pressing mechanism are arranged on the cabinet along the first horizontal direction, the rotating clamping mechanism is configured to clamp the pipe extending along the first horizontal direction, and the installation end of the pipe to be installed with the plug faces the pressing mechanism;

[0007] The pressing mechanism is configured to hold the plug and press the plug to the installation end of the pipe;

[0008] The laser welding mechanism is arranged on the cabinet, and the laser welding mechanism is configured to weld the plug to the installation end of the pipe, and the rotating clamping mechanism is further configured to rotate the pipe during the welding process.

[0009] In some embodiments, the rotating clamping mechanism comprises a first mounting bracket, a pneumatic chuck and a rotating drive part, wherein: the first mounting bracket is arranged on the cabinet; the pneumatic chuck is rotatably mounted on the first mounting bracket, and a clamping channel penetrating the pneumatic chuck along the first horizontal direction is formed in the pneumatic chuck; the rotating drive part is arranged on the first mounting bracket and is in transmission connection with the pneumatic chuck, and the rotating drive part is configured to drive the pneumatic chuck to rotate.

[0010] In some embodiments, the rotating driving part comprises a driving motor, a driving pulley, a synchronous belt and a driven pulley, wherein the driving motor is arranged on the first mounting bracket, the driving pulley is fixedly connected to a driving shaft of the driving motor, and the driven pulley is sleeved to the middle part of the pneumatic chuck; and the synchronous belt is arranged on the driving pulley and the driven pulley.

[0011] In some embodiments, the first mounting bracket is slidably mounted on the cabinet, and the pipe plug laser welding machine further comprises a translation driving mechanism in transmission connection with the first mounting bracket, and the translation driving mechanism is used to drive the first mounting bracket to translate along the first horizontal direction towards or away from the pressing mechanism.

[0012] In some embodiments, the pressing mechanism comprises a second mounting bracket, a mounting plate, a suction cup and a pressing driving part, wherein the second mounting bracket is arranged on the cabinet, and the pressing driving part is arranged on the second mounting bracket; the mounting plate is movably connected to the second mounting bracket and in transmission connection with the pressing driving part, the suction cup is arranged on the mounting plate, and the suction end of the suction cup faces the rotating clamping mechanism; the suction cup is used to adsorb the plug, and the pressing driving part is used to drive the mounting plate to translate along the first horizontal direction towards the rotating clamping mechanism to press the plug adsorbed on the suction cup to the mounting end of the pipe.

[0013] In some embodiments, the middle part of the suction cup has an adsorption hole matched with the size of the plug.

[0014] In some embodiments, the laser welding mechanism comprises a driving part and a laser welding part, wherein the driving part is arranged on the cabinet, the laser welding part is connected to a movable part of the driving part, and the driving part is used to at least drive the laser welding part to lift and translate along a second horizontal direction perpendicular to the first horizontal direction; and the laser welding part is used to weld the plug to the mounting end of the pipe.

[0015] In some embodiments, the driving part comprises a lifting driving module and a translation driving module, wherein the lifting driving module is arranged on the cabinet, the translation driving module is connected to a movable part of the lifting driving module, and the laser welding part is connected to a movable part of the translation driving module; the lifting driving module is used to drive the laser welding part to lift; and the translation driving module is used to drive the laser welding part to translate along the second horizontal direction.

[0016] In some embodiments, the pipe plug laser welding machine further comprises a fiber laser arranged in the cabinet; the laser welding part comprises a mounting body, a fiber joint, an optical path assembly and a welding head, wherein the mounting body is connected to the movable part of the driving part, the optical path assembly is arranged in the mounting body, the fiber joint is arranged at the top of the mounting body, and the welding head is arranged at the bottom of the mounting body, and the welding head is provided with a welding hole penetrating through the welding head; the fiber joint is connected with the fiber laser through an optical fiber, the laser emitted by the fiber laser enters into the mounting body through the optical fiber, and is conducted into the welding head through the optical path assembly and then is emitted downward through the welding hole.

[0017] In some embodiments, the rotary clamping mechanism is arranged in two groups along a second horizontal direction; the pressing mechanism is arranged in two groups along the second horizontal direction, and the two groups of pressing mechanisms correspond to the rotary clamping mechanisms one by one; the second horizontal direction is perpendicular to the first horizontal direction.

[0018] The pipe plug laser welding machine provided by the utility model, the pipe is clamped on the rotary clamping mechanism in a horizontal state, after the pressing mechanism presses the plug to the mounting end of the pipe, the laser welding mechanism starts to implement welding, and then the pressing mechanism releases the plug and retreats. The laser welding mechanism continues to implement welding, and during the welding process, the rotary clamping mechanism drives the pipe to rotate at least one circle around the axis of the pipe, so that the plug is welded to the mounting end of the pipe.

[0019] The pipe plug laser welding machine is not affected by the vertical height limit and is suitable for implementing plug welding of pipes of various lengths. In addition, during the laser welding process, the pipe is driven to rotate by the rotary clamping mechanism, so that the plug is welded to the mounting end of the pipe, and it is not necessary to implement accurate movement control of the laser through the rotary driving module and the galvanometer, so that the complexity of the welding process is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure schematic view of the pipe plug laser welding machine in the utility model embodiment;

[0021] Figure 2 It is a local structure schematic view of the pipe plug laser welding machine in the utility model embodiment;

[0022] Figure 3 It is a structure schematic view of the pressing mechanism in the utility model embodiment;

[0023] Figure 4 It is a structure schematic view of the laser welding part in the utility model embodiment.

[0024] Figures 1 to 4 It comprises:

[0025] The cabinet 1;

[0026] Rotary clamping mechanism 2: first mounting bracket 21, pneumatic chuck 22, rotary drive unit 23, drive motor 231, driving pulley 232, synchronous belt 233, driven pulley 234;

[0027] Clamping mechanism 3: Second mounting bracket 31, mounting plate 32, suction cup 33, clamping drive component 34, air extraction connector 35;

[0028] Laser welding mechanism 4: drive unit 41, laser welding unit 42, lifting drive module 411, translation drive module 412, mounting body 421, fiber optic connector 422, welding head 423, camera 424. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] As described in the background section, existing laser welding machines for plugs are generally vertical structures. Due to the limited floor height in the workshop, it is difficult to perform plug welding on long pipes. In addition, current laser welding machines for plugs cannot rotate the pipe during the welding process. Therefore, it is necessary to use a rotation drive module and a galvanometer to precisely control the laser to move along the periphery of the pipe end to complete the welding of the plug. The control process is relatively complex.

[0031] Therefore, this utility model provides a laser welding machine for plugs. For example... Figures 1 to 4 As shown, the laser welding machine for plugs in this embodiment of the present invention includes a cabinet 1, a rotating clamping mechanism 2, a pressing mechanism 3, and a laser welding mechanism 4, wherein:

[0032] The rotary clamping mechanism 2 and the pressing mechanism 3 are arranged on the cabinet 1 along the first horizontal direction (such as the X direction). The rotary clamping mechanism 2 is configured to clamp the pipe 100 extending along the first horizontal direction, and the installation end of the plug to be installed on the pipe 100 faces the pressing mechanism 3.

[0033] The clamping mechanism 3 is configured to hold the plug 200 and is configured to clamp the plug to the mounting end of the pipe 100.

[0034] The laser welding mechanism 4 is mounted on the cabinet 1 and is configured to weld the plug 200 to the installation end of the pipe. The rotating clamping mechanism 2 is also configured to drive the pipe 100 to rotate during the welding process.

[0035] The pipe plug laser welding machine in the embodiment of the utility model, pipe material 100 is clamped in rotating clamping mechanism 2 in horizontal state, after pressure mechanism 3 is pressed to the installation end of pipe material 100, laser welding mechanism 4 starts to implement welding, then pressure mechanism 3 releases plug 100 and retreats. Laser welding mechanism 4 continues to implement welding, during the welding process, rotating clamping mechanism 2 drives pipe material 100 to rotate at least one circle around its axis, so that plug 200 is welded to the installation end of pipe material 200.

[0036] Because pipe material 100 is clamped in rotating clamping mechanism 2 in horizontal state, the pipe plug laser welding machine in the embodiment of the utility model is not affected by vertical height limit, and is suitable for implementing plug welding of pipe material of various lengths. In addition, during the laser welding process, the pipe is driven to rotate by rotating clamping mechanism 2, so that the plug is welded to the installation end of the pipe, and precise movement control of the laser is not required by rotating drive module and galvanometer, thereby reducing the complexity of the welding process.

[0037] As shown in Figure 2 Optionally, rotating clamping mechanism 2 includes first mounting bracket 21, pneumatic chuck 22 and rotating drive part 23, wherein: first mounting bracket 21 is arranged on cabinet 1. Pneumatic chuck 22 is rotatably mounted on first mounting bracket 21, and a clamping passage penetrating the pneumatic chuck in the first horizontal direction is formed in pneumatic chuck 22. Rotating drive part 23 is arranged on first mounting bracket 21 and is in transmission connection with pneumatic chuck 22, and rotating drive part 23 is configured to drive pneumatic chuck 22 to rotate.

[0038] Before implementing welding, pipe material 100 is first inserted into the clamping passage of pneumatic chuck 22, and the installation end of pipe material 100 faces pressure mechanism 3, then pneumatic chuck 22 clamps pipe material 100. During the welding process, rotating drive part 23 drives pneumatic chuck 22 to rotate, thereby driving pipe material 100 to rotate synchronously.

[0039] Pneumatic chuck 22 is a clamping device commonly used in the art for clamping and fixing pipe material or wire material, and its structure and working principle are well known to those skilled in the art. In addition, its specific structure is not the object to be protected by the utility model, and for the sake of brevity, the specific structure will not be described in detail here. Those skilled in the art can use the existing pneumatic chuck that can clamp pipe material 100 when implementing the utility model.

[0040] Pneumatic chuck 22 can stably hold pipe material 100, prevent pipe material 100 from rotating accidentally during welding, and thus improve the welding effect of the plug.

[0041] Optionally, as shown in Figure 2As shown, the rotary drive unit 23 includes a drive motor 231, a drive pulley 232, a timing belt 233, and a driven pulley 234. The drive motor 231 is mounted on the first mounting bracket 21. The drive pulley 232 is fixedly connected to the drive shaft of the drive motor 231. The driven pulley 234 is sleeved on the middle of the pneumatic chuck 22. The timing belt 233 is mounted on the drive pulley 232 and the driven pulley 234.

[0042] The drive motor 231 drives the pneumatic chuck 22 to rotate via the drive pulley 232 and the driven pulley 234.

[0043] Of course, the rotary drive unit 23 can also adopt other known rotary drive devices, as long as they can drive the pneumatic chuck 22 to rotate around its own axis.

[0044] Optionally, the first mounting bracket 21 can be slidably mounted on the cabinet 1. For example, the cabinet 1 is provided with a slide rail extending along a first horizontal direction, and the first mounting bracket 21 is slidably connected to the slide rail via a slider. The pipe plug laser welding machine in this embodiment of the present invention also includes a translation drive mechanism (not shown in the figure), which is connected to the first mounting bracket 21 in a transmission manner. The translation drive mechanism is used to drive the first mounting bracket 21 to translate towards or away from the clamping mechanism 3 along the first horizontal direction.

[0045] When the translation drive mechanism drives the first mounting bracket 21 to translate toward the clamping mechanism 3, the mounting end of the pipe 100 moves synchronously toward the plug 200 on the clamping mechanism 3, so that the clamping mechanism 3 can smoothly clamp the plug 200 onto the mounting end of the pipe 100.

[0046] like Figure 3 As shown, optionally, the clamping mechanism 3 includes a second mounting bracket 31, a mounting plate 32, a suction cup 33, and a clamping drive component 34, wherein: the second mounting bracket 31 is mounted on the cabinet 1, and the clamping drive component 34 is mounted on the second mounting bracket 31. The mounting plate 32 is movably connected to the second mounting bracket 31 and is drively connected to the clamping drive component 34. The suction cup 33 is mounted on the mounting plate, with its suction end facing the rotary clamping mechanism 2. The suction cup 33 is used to suction the plug 200, and the clamping drive component 34 is used to drive the mounting plate 32 to translate towards the rotary clamping mechanism 2 along a first horizontal direction, thereby clamping the plug 200 suctioned on the suction cup 33 to the mounting end of the pipe 100.

[0047] The laser welding mechanism 4 implements welding on the plug 200 connected to the mounting end of the pipe 100. Subsequently, the pressing driving member 34 is translated away from the rotary clamping mechanism 2, and the suction cup 33 is detached from the plug 200. The laser welding mechanism 4 continues to implement welding, while the rotary clamping mechanism 2 drives the pipe 100 to rotate around its own axis, so that the plug 200 is completely welded to the mounting end of the pipe 200.

[0048] The pressing driving member 34 may, for example, adopt a pneumatic cylinder.

[0049] Optionally, the pressing mechanism 3 further comprises a suction joint 35 arranged on the second mounting bracket 31 and communicated with the suction cup 33, the suction joint 35 is used to key connect an external suction device, and the suction device is used to suction the suction cup 33 through the suction joint 35 to generate suction force.

[0050] Optionally, the middle part of the suction cup has a suction hole 36 matched with the size of the plug 200. The plug 200 is positioned and suctioned in the suction hole 36.

[0051] As shown in Figure 1 Optionally, the laser welding mechanism 4 comprises a driving part 41 and a laser welding part 42, wherein the driving part 41 is arranged on the cabinet 1, the laser welding part 42 is connected to the movable part of the driving part 41, and the driving part 41 is used to at least drive the laser welding part 42 to lift and translate in the second horizontal direction (such as Y direction) perpendicular to the first horizontal direction. The laser welding part 42 is used to weld the plug 200 to the mounting end of the pipe 100.

[0052] Under the driving of the driving part 41, the laser welding part 42 can realize translation in the second horizontal direction and lifting in the vertical direction, and the mounting end of the pipe 100 can realize position adjustment in the first horizontal direction, so as to ensure that the laser emitted by the laser welding part 42 can accurately fall on the mounting end of the pipe 100, thereby welding the plug 200 to the mounting end of the pipe 100.

[0053] As shown in Figure 1 Optionally, the driving part 41 comprises a lifting driving module 411 and a translation driving module 412, wherein the lifting driving module 411 is arranged on the cabinet 1, the translation driving module 412 is connected to the movable part of the lifting driving module 411, and the laser welding part 42 is connected to the movable part of the translation driving module 412. The lifting driving module 411 is used to drive the laser welding part 42 to lift, and the translation driving module 412 is used to drive the laser welding part 42 to translate in the second horizontal direction.

[0054] The lifting driving module 411 and the translation driving module 412 can adopt various existing linear driving modules, such as a screw rod driving module, a pneumatic cylinder driving module, etc.

[0055] Optionally, the pipe plug laser welding machine in the embodiment of the utility model further comprises a fiber laser arranged in the cabinet 1. As shown in the drawing, Figure 4 Optionally, the laser welding part 42 comprises a mounting body 421, a fiber joint 422, an optical path assembly (not shown in the drawing) and a welding head 423. The mounting body 421 is connected to the movable part of the driving part 41, the optical path assembly is arranged in the mounting body 421, the fiber joint 422 is arranged at the top of the mounting body 421, and the welding head 423 is arranged at the bottom of the mounting body 421. The welding head 423 is provided with a welding hole penetrating through the welding head. The fiber joint 422 is connected with the fiber laser through an optical fiber, the laser emitted by the fiber laser enters into the mounting body 421 through the optical fiber, and is conducted into the welding head 423 through the optical path assembly, and finally is emitted downward through the welding hole. The optical path assembly can be composed of several mirrors and convex mirrors, which functions to transmit and focus the laser entering into the mounting body 421 through the fiber joint 422 to the welding hole.

[0056] Optionally, the laser welding part 42 further comprises a camera 424 arranged on the mounting body 421. The camera 424 is used to implement the photographing positioning of the plug 200 pressed against the mounting end of the pipe 100, so as to further ensure the accurate welding of the plug 200.

[0057] Of course, the laser welding part 42 in the embodiment of the utility model can also adopt various other types of existing laser welding parts, as long as it can emit welding laser.

[0058] As shown in the drawing, Figures 1 to 3 Optionally, the rotary clamping mechanism 2 is arranged in two groups along the second horizontal direction (such as Y direction). Correspondingly, the pressing mechanism 3 is arranged in two groups in the second horizontal direction, and the two groups of pressing mechanisms 3 correspond to the rotary clamping mechanisms 2 one by one.

[0059] In this way, the pipe plug laser welding machine in the embodiment of the utility model can simultaneously implement the plug welding of two pipes, thereby improving the welding efficiency.

[0060] The above description of the utility model is sufficiently detailed and has certain particularity. It should be understood by those skilled in the art that the description in the embodiment is only exemplary, and all changes made without departing from the true spirit and scope of the utility model should belong to the protection scope of the utility model. The scope of protection claimed by the utility model is defined by the claims, not by the above description in the embodiment.

Claims

1. A laser welding machine for pipe plugs, characterized in that, The laser welding machine for pipe plugs includes a cabinet, a rotating clamping mechanism, a pressing mechanism, and a laser welding mechanism, wherein: The rotary clamping mechanism and the pressing mechanism are arranged on the cabinet along the first horizontal direction. The rotary clamping mechanism is configured to clamp the pipe extending along the first horizontal direction, and the installation end of the plug to be installed on the pipe faces the pressing mechanism. The clamping mechanism is configured to hold the plug and to clamp the plug to the mounting end of the pipe. The laser welding mechanism is mounted on the cabinet and is configured to weld the plug to the mounting end of the pipe. The rotating clamping mechanism is also configured to rotate the pipe during the welding process.

2. The laser welding machine for pipe plugs as described in claim 1, characterized in that, The rotary clamping mechanism includes a first mounting bracket, a pneumatic chuck, and a rotary drive unit, wherein: The first mounting bracket is mounted on the cabinet; The pneumatic chuck is rotatably mounted on the first mounting bracket, and a clamping channel is formed inside the pneumatic chuck along the first horizontal direction; The rotary drive unit is mounted on the first mounting bracket and is connected to the pneumatic chuck for transmission. The rotary drive unit is configured to drive the pneumatic chuck to rotate.

3. The laser welding machine for pipe plugs as described in claim 2, characterized in that, The rotary drive unit includes a drive motor, a driving pulley, a synchronous belt, and a driven pulley, wherein: The drive motor is mounted on the first mounting bracket, the driving pulley is fixedly connected to the drive shaft of the drive motor, and the driven pulley is sleeved on the middle of the pneumatic chuck. The synchronous belt is mounted on the driving pulley and the driven pulley.

4. The laser welding machine for pipe plugs as described in claim 2, characterized in that: The first mounting bracket is slidably mounted on the cabinet. The pipe plug laser welding machine also includes a translation drive mechanism, which is connected to the first mounting bracket in a transmission manner. The translation drive mechanism is used to drive the first mounting bracket to translate towards or away from the clamping mechanism along the first horizontal direction.

5. The laser welding machine for pipe plugs as described in claim 1, characterized in that: The clamping mechanism includes a second mounting bracket, a mounting plate, a suction cup, and a clamping drive component, wherein: The second mounting bracket is disposed on the cabinet, and the clamping drive component is disposed on the second mounting bracket; The mounting plate is movably connected to the second mounting bracket and is connected to the clamping drive component. The suction cup is disposed on the mounting plate, and the suction end of the suction cup faces the rotating clamping mechanism. The suction cup is used to adsorb the plug, and the pressing drive is used to drive the mounting plate to translate toward the rotating clamping mechanism along the first horizontal direction, so as to press the plug adsorbed on the suction cup to the mounting end of the pipe.

6. The laser welding machine for pipe plugs as described in claim 5, characterized in that: The suction cup has an adsorption hole in the middle that matches the size of the plug.

7. The pipe plug laser welding machine as described in claim 1, characterized in that: The laser welding mechanism includes a drive unit and a laser welding unit, wherein: The drive unit is mounted on the cabinet, and the laser welding unit is connected to the movable part of the drive unit. The drive unit is at least used to drive the laser welding unit to move up and down and to translate along a second horizontal direction, which is perpendicular to the first horizontal direction. The laser welding section is used to weld the plug to the mounting end of the pipe.

8. The laser welding machine for pipe plugs as described in claim 7, characterized in that, The drive unit includes a lifting drive module and a translation drive module, wherein the lifting drive module is mounted on the cabinet, the translation drive module is connected to the movable part of the lifting drive module, and the laser welding part is connected to the movable part of the translation drive module. The lifting drive module is used to drive the laser welding part to rise and fall; The translation drive module is used to drive the laser welding part to translate along the second horizontal direction.

9. The laser welding machine for pipe plugs as described in claim 7, characterized in that: The pipe plug laser welding machine also includes a fiber laser installed in the cabinet; The laser welding unit includes a mounting body, an optical fiber connector, an optical path assembly, and a welding head. The mounting body is connected to the movable part of the driving unit, the optical path assembly is disposed in the mounting body, the optical fiber connector is disposed at the top of the mounting body, and the welding head is disposed at the bottom of the mounting body. The welding head has a welding hole that penetrates through the welding head. The fiber optic connector is connected to the fiber laser via an optical fiber. The laser emitted by the fiber laser enters the mounting body via the optical fiber, is conducted through the optical path assembly to the welding head, and is emitted downward through the welding hole.

10. The laser welding machine for pipe plugs as described in claim 1, characterized in that: The rotating clamping mechanism is configured in two groups along the second horizontal direction; The clamping mechanism is configured in two groups in the second horizontal direction, and the two groups of clamping mechanisms correspond one-to-one with the rotary clamping mechanism; The second horizontal direction is perpendicular to the first horizontal direction.

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