Self-adaptive laser welding device

Abstract

The invention discloses a self-adaptive laser welding device, and belongs to the technical field of laser welding. The self-adaptive laser welding device comprises a support, a pneumatic balance module, a laser module, a pneumatic clamping module and a control module. The pneumatic balance module comprises a sliding block, a first air cylinder, a sliding seat and an electromagnetic valve unit, the sliding block is fixedly installed on the support, the first air cylinder is located on the sliding seat, one end of the first air cylinder is in transmission connection with the sliding block, and the sliding block is in sliding fit with the sliding seat; the pneumatic clamping module comprises two second air cylinders, two supporting frames and two clamping wheels, and the two second air cylinders are both arranged on the sliding seat; the control module comprises a signal emitter, three signal receivers and a controller. According to the self-adaptive laser welding device provided by the embodiment of the invention, follow-up between the laser module and the clamping wheel can be realized, so that the production cost is reduced, the laser focus of the laser module can be adjusted and coincides with a welding seam, and the welding effect is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of laser welding, and in particular relates to an adaptive laser welding device. Background Art

[0002] In the laser welding operation, in order to meet the welding quality requirements between the flanges of the two workpieces to be welded, it is necessary to provide corresponding fixtures to clamp the two flanges, so as to control the gap between the two flanges (i.e., the weld), so it is necessary to set multiple fixtures in the direction of the weld path to clamp. In addition, during the laser welding of the two flanges, since the laser module is tilted and asymmetrically arranged on the welding device, the process of the robot driving the welding device to move will cause the laser module itself to generate inertial vibration perpendicular to the direction of the welding path, resulting in a large offset between the focus of the laser module and the weld between the flanges.

[0003] Therefore, when flanging two workpieces to be welded, a large number of tools and fixtures are required, and inertial vibration causes a large distance between the welding focus and the weld, which ultimately leads to high welding costs and poor welding effects. Summary of the invention

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides an adaptive laser welding device, the purpose of which is not only to achieve the follow-up between the laser module and the clamping wheel, thereby reducing the production cost, but also to adjust the laser focus of the laser module and make it coincide with the weld, thereby ensuring the welding effect.

[0005] To achieve the above-mentioned object, the present invention provides an adaptive laser welding device, which includes a bracket, a pneumatic balancing module, a laser module, a pneumatic clamping module and a control module;

[0006] The pneumatic balancing module includes a slider, a first cylinder, a sliding seat and a solenoid valve unit, wherein the slider is fixedly mounted on the bracket, the first cylinder is located on the sliding seat, one end of the first cylinder is drivingly connected to the slider, the slider and the sliding seat are slidably matched along a first direction, and the solenoid valve unit is used to control the communication between the air source and the first cylinder, so as to control the extension or retraction of the piston rod of the first cylinder;

[0007] The laser module is arranged obliquely on the sliding seat to perform laser processing on the two flanges;

[0008] The pneumatic clamping module includes two second cylinders, two support frames and at least two clamping wheels. The two second cylinders are both arranged on the sliding seat. The piston rods of the second cylinders are respectively in transmission connection with the corresponding support frames. Each clamping wheel is rotatably arranged on the corresponding support frame. The two clamping wheels are spaced along a first direction, and the axial direction of each clamping wheel is arranged along a second direction to clamp the two flanges.

[0009] The control module includes a signal transmitter, three signal receivers capable of receiving the signals transmitted by the signal transmitter and a controller. The signal transmitter is located on the slider. The three signal receivers are arranged at intervals along the first direction on the sliding seat. The signal receiver, the controller and the solenoid valve unit are electrically connected in sequence so that after the sliding seat is driven by the first cylinder to slide, the middle signal receiver is arranged opposite to the signal transmitter.

[0010] Optionally, the number of the first cylinders is two. The two first cylinders are arranged back to back on the sliding seat. A stop block is fixedly arranged on the sliding seat. The stop block is arranged at an interval from the slider. The piston rod of one first cylinder is in transmission connection with the slider, and the piston rod of the other first cylinder is in transmission connection with the stop block.

[0011] Optionally, the adaptive laser welding device further includes an adjustment module. The adjustment module is arranged on the sliding seat and is used for adjusting the positions of the laser module in the first direction, the second direction and the third direction.

[0012] Optionally, the adjustment module includes a connecting frame, a first adjustment plate, a second adjustment plate and a third adjustment plate. The connecting frame is fixedly connected to the sliding seat. The first adjustment plate is inclined and installed on the connecting frame. The second adjustment plate is slidably and inclinedly arranged on the first adjustment plate to adjust the positions of the second adjustment plate in the first direction and the second direction. The third adjustment plate is slidably arranged on the second adjustment plate to adjust the position of the third adjustment plate in the third direction. The laser module is located on the third adjustment plate.

[0013] Optionally, a first lead screw is rotatably inserted on the first adjustment plate. The first lead screw is in threaded cooperation with the second adjustment plate. A second lead screw is rotatably inserted on the second adjustment plate. The second lead screw is in threaded cooperation with the third adjustment plate.

[0014] Optionally, the adjustment module further includes a fourth adjustment plate. The fourth adjustment plate is located on the connecting frame. The pneumatic clamping module further includes a cylinder mounting seat. The two second cylinders are located on the cylinder mounting seat. The cylinder mounting seat is slidably arranged on the fourth adjustment plate along the second direction.

[0015] Optionally, each of the support frames includes two support monomers arranged at intervals, and one of the clamping wheels is provided on each of the support monomers.

[0016] Optionally, the laser module includes a support cylinder, a laser, and a collimating mirror. The laser is coaxially inserted into one end of the support cylinder. The support cylinder is inclined and arranged on the sliding seat. The collimating mirror is inserted into the support cylinder, and the other end of the support cylinder faces the clamping wheel.

[0017] Optionally, a protective mirror drawer is slidably inserted into the support cylinder. A protective mirror is inserted into the protective mirror drawer. The collimating mirror is located between the laser and the protective mirror.

[0018] Optionally, an air knife assembly and a dust suction assembly are oppositely arranged at the other end of the bracket. The air knife assembly is used for blowing air, and the dust suction assembly is used for dust suction.

[0019] As long as the above-improved technical features do not conflict with each other, they can be combined with each other.

[0020] Generally speaking, compared with the prior art, the beneficial effects of the above technical solution conceived by the present invention include:

[0021] For an adaptive laser welding device provided by an embodiment of the present invention, when welding two flanges on two workpieces to be welded, first, the bracket is installed on the manipulator. The manipulator drives the bracket to move to the processing position. At this time, the two flanges are located between the two clamping wheels. The laser focus corresponding to the laser module is directly opposite to the weld seam, and the signal transmitter and the signal receiver in the middle are opposite to each other. The first cylinder is in the zero position state (the piston rod of the first cylinder is in the middle state).

[0022] Then, two second cylinders are started to drive the two clamping wheels to approach, so as to clamp the two flanges. And, the laser module is started to emit laser and perform laser processing on the weld seam. At the same time, the manipulator drives the bracket to move along the extension direction of the weld seam. In this process, the laser module and the two clamping wheels are always located on the sliding seat and move synchronously with the bracket. The friction between the clamping wheel and the flange during the movement of the clamping wheel is small, so as to realize synchronous clamping and synchronous welding of each position of the weld seam, and there is no need to set multiple fixtures on the weld path, reducing the cost.

[0023] Furthermore, when the manipulator drives the bracket to move, during the inertial vibration of the laser module, the sliding seat will be driven to move left and right, so that the signal receiver and the signal transmitter are arranged opposite to each other. For example, when the inertial vibration makes the signal receiver on the right side and the signal transmitter arranged opposite to each other, at this time, the signal receiver transmits the received signal (for example, optical signal) to the controller, and the controller controls the solenoid valve unit to generate corresponding actions. The solenoid valve unit controls the connection between the air source and the first cylinder to control the piston rod of the first cylinder to retract until the signal receiver in the middle and the signal transmitter are arranged opposite to each other. At this time, the signal receiver transmits the signal to the controller, and at this time, the controller releases the control of the solenoid valve unit, so that the first cylinder drives the laser module to move back to the zero position again. At this time, the laser focus corresponding to the laser module is facing the weld again.

[0024] Similarly, when the inertial vibration makes the signal receiver on the left side and the signal transmitter arranged opposite to each other, at this time, the signal receiver transmits the received signal to the controller, and the controller controls the corresponding actions generated by the solenoid valve unit. The solenoid valve unit controls the connection between the air source and the first cylinder to control the piston rod of the first cylinder to extend until the signal receiver in the middle and the signal transmitter are arranged opposite to each other. At this time, the signal receiver transmits the signal to the controller, and at this time, the controller releases the control of the solenoid valve unit, so that the first cylinder drives the laser module to move back to the zero position again, and the laser focus corresponding to the laser module also faces the weld again. Therefore, by the cooperation of the control module, the first cylinder can be adjusted in real time, so that the first cylinder is always approximately in the zero state, thereby adjusting the laser focus of the laser module and making it coincide with the weld, and further ensuring the welding effect.

[0025] That is to say, an adaptive laser welding device provided by an embodiment of the present invention can not only achieve the follow-up between the laser module and the clamping wheel, thereby reducing the production cost, but also adjust the laser focus of the laser module and make it coincide with the weld, ensuring the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of an adaptive laser welding device provided by an embodiment of the present invention;

[0027] Figure 2 is a schematic structural diagram of a pneumatic balance module provided by an embodiment of the present invention;

[0028] Figure 3 is a schematic structural diagram of a pneumatic clamping module provided by an embodiment of the present invention;

[0029] Figure 4 is a schematic structural diagram of an adjustment module provided by an embodiment of the present invention;

[0030] Figure 5It is an assembly schematic diagram of a cylinder mounting seat provided by an embodiment of the present invention;

[0031] Figure 6 It is a structural schematic diagram of a laser module provided by an embodiment of the present invention.

[0032] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0033] 1. Bracket; 2. Pneumatic balance module; 21. Slide block; 22. First cylinder; 23. Sliding seat; 231. Stop block; 24. Solenoid valve unit; 3. Laser module; 31. Support cylinder; 32. Laser; 33. Protective mirror drawer; 34. Air knife assembly; 35. Dust suction assembly; 36. CCD camera module; 37. Aperture water-cooling block; 38. Collimation water-cooling block; 4. Pneumatic clamping module; 41. Second cylinder; 42. Support frame; 421. Support monomer; 43. Clamping wheel; 44. Cylinder mounting seat; 5. Control module; 51. Signal transmitter; 52. Signal receiver; 53. Controller; 6. Adjustment module; 61. Connecting frame; 62. First adjustment plate; 621. First lead screw; 63. Second adjustment plate; 631. Second lead screw; 64. Third adjustment plate; 65. Fourth adjustment plate; 100. Flange; 200. Laser. Detailed implementation manners

[0034] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is 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 should not be construed as a limitation of the present invention.

[0036] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0037] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0039] Embodiment:

[0040] Figure 1 is a schematic structural diagram of an adaptive laser welding device provided by an embodiment of the present invention, as Figure 1 shown, the adaptive laser welding device includes a bracket 1, a pneumatic balance module 2, a laser module 3, a pneumatic clamping module 4 and a control module 5.

[0041] Figure 2 is a schematic structural diagram of the pneumatic balance module provided by an embodiment of the present invention, as Figure 2 shown, the pneumatic balance module 2 includes a slider 21, a first cylinder 22, a sliding seat 23 and a solenoid valve unit 24. The slider 21 is fixedly mounted on the bracket 1. The first cylinder 22 is located on the sliding seat 23. One end of the first cylinder 22 is in transmission connection with the slider 21. The slider 21 and the sliding seat 23 are slidably matched in a first direction (for example, the X-axis direction). The solenoid valve unit 24 is used to control the connection between the air source and the first cylinder 22 to control the piston rod of the first cylinder 22 to extend or retract.

[0042] The laser module 3 is obliquely arranged on the sliding seat 23 to perform laser processing on the two flanges 100.

[0043] Figure 3 It is a schematic structural diagram of the pneumatic clamping module provided by an embodiment of the present invention. As Figure 3 shown, the pneumatic clamping module 4 includes two second cylinders 41, two support frames 42, and at least two clamping wheels 43. The two second cylinders 41 are both arranged on the sliding seat 23. The piston rods of each second cylinder 41 are in transmission connection with the corresponding support frame 42. Each clamping wheel 43 is rotatably arranged on the corresponding support frame 42. The two clamping wheels 43 are spaced along the first direction, and the axial direction of each clamping wheel 43 is arranged along the second direction (for example, the Z-axis direction) to clamp the two flanges 100.

[0044] The control module 5 includes a signal transmitter 51, three signal receivers 52 that can receive the signals emitted by the signal transmitter 51, and a controller 53. The signal transmitter 51 is located on the slider 21. The three signal receivers 52 are arranged at intervals along the first direction on the sliding seat 23. The signal receiver 52, the controller 53, and the solenoid valve unit 24 are electrically connected in sequence so that after the sliding seat 23 is driven to slide by the first cylinder 22, the middle signal receiver 52 is arranged opposite to the signal transmitter 51.

[0045] For an adaptive laser welding device provided by an embodiment of the present invention, when welding the two flanges 100 on two workpieces to be welded, first, the bracket 1 is installed on the manipulator. The manipulator drives the bracket 1 to move to the processing position. At this time, the two flanges 100 are located between the two clamping wheels 43. The laser focus corresponding to the laser module 3 is directly opposite to the weld seam, and the signal transmitter 51 and the middle signal receiver 52 are opposite to each other. The first cylinder 22 is in the zero position state (the piston rod of the first cylinder 22 is in the middle state).

[0046] Then, the two second cylinders 41 are started to drive the two clamping wheels 43 to approach each other, thereby clamping the two flanges 100. And the laser module 3 is started to emit the laser 200 and perform laser processing on the weld seam. At the same time, the manipulator drives the bracket 1 to move along the extension direction of the weld seam. During this process, the laser module 3 and the two clamping wheels 43 are always located on the sliding seat 23 and move synchronously with the bracket 1 together. The friction between the clamping wheels 43 and the flanges 100 during the movement is small, so as to realize synchronous clamping and synchronous welding of each position of the weld seam, without setting multiple fixtures on the weld seam path, reducing the cost.

[0047] Further, when the manipulator drives the bracket 1 to move, during the inertial vibration of the laser module 3, the sliding seat 23 will be driven to move left and right, so that the signal receiver 52 and the signal transmitter 51 are arranged opposite to each other. For example, when the inertial vibration makes the signal receiver 52 on the right side and the signal transmitter 51 arranged opposite to each other, at this time, the signal receiver 52 transmits the received signal (for example, optical signal) to the controller 53, and the controller 53 controls the solenoid valve unit 24 to generate corresponding actions. The solenoid valve unit 24 controls the connection between the air source and the first cylinder 22 to control the piston rod of the first cylinder 22 to retract until the signal receiver 52 in the middle and the signal transmitter 51 are arranged opposite to each other. At this time, the signal receiver 52 transmits the signal to the controller 53, and at this time, the controller 53 releases the control of the solenoid valve unit 24, so that the first cylinder 22 drives the laser module 3 to move back to the zero position state again. At this time, the laser focus corresponding to the laser module 3 is re-aligned with the weld seam.

[0048] Similarly, when the inertial vibration makes the signal receiver 52 on the left side and the signal transmitter 51 arranged opposite to each other, at this time, the signal receiver 52 transmits the received signal to the controller 53, and the controller 53 controls the corresponding actions generated by the solenoid valve unit 24. The solenoid valve unit 24 controls the connection between the air source and the first cylinder 22 to control the piston rod of the first cylinder 22 to extend until the signal receiver 52 in the middle and the signal transmitter 51 are arranged opposite to each other. At this time, the signal receiver 52 transmits the signal to the controller 53, and at this time, the controller 53 releases the control of the solenoid valve unit 24, so that the first cylinder 22 drives the laser module 3 to move back to the zero position state again, and the laser focus corresponding to the laser module 3 is also re-aligned with the weld seam. Therefore, through the cooperation of the control module 5, the first cylinder 22 can be adjusted in real time, so that the first cylinder 22 is always approximately in the zero point state, thereby adjusting the laser focus of the laser module 3 and making it coincide with the weld seam, and further ensuring the welding effect.

[0049] That is to say, an adaptive laser welding device provided by an embodiment of the present invention can not only realize the follow-up between the laser module 3 and the clamping wheel 43, thereby reducing the production cost, but also adjust the laser focus of the laser module 3 and make it coincide with the weld seam, ensuring the welding effect.

[0050] In addition, through the pneumatic clamping module 4, the flanges 100 of different sizes and different materials can be clamped, and the pneumatic control has good balance. Through the pneumatic balance module 2, the inertial vibration under different conditions can be adapted. Therefore, this laser welding device has strong adaptability and can adapt to different products and different working conditions.

[0051] It should be noted that the extension and retraction of the piston rod is achieved by controlling the passage form between the gas source and the first cylinder 22 by the solenoid valve unit 24, which is a conventional technical means in the art. Correspondingly, in the present invention, different signal receivers 52 are arranged relative to the signal transmitter 51, and the received signals are transmitted to the controller 53, and the controller 53 generates different control signals, thereby further generating corresponding controls on the solenoid valve unit 24, and finally generating controls on the extension or retraction of the piston rod of the first cylinder 22.

[0052] Exemplarily, a slide rail is provided on the slide seat 23, and the slide block 21 slides with the slide rail. When the piston rod of the first cylinder 22 extends, it pushes the slide block 21, and the slide block 21 is fixed on the bracket 1 (regarded as the fixed end), and the first cylinder 22 drives the laser module 3 to move right. When the piston rod of the first cylinder 22 is retracted, the first cylinder 22 drives the laser module 3 to move left.

[0053] Exemplarily, the two support frames 42 are arranged in a V shape.

[0054] Continue to see Figure 2 There are two first cylinders 22, and the two first cylinders 22 are arranged back to back on the sliding seat 23. A stopper 231 is fixedly provided on the sliding seat 23. The stopper 231 is arranged at an interval with the sliding block 21. The piston rod of one first cylinder 22 is transmission connected to the sliding block 21, and the piston rod of the other first cylinder 22 is transmission connected to the stopper 231.

[0055] In the above embodiment, on the one hand, the two first cylinders 22 can increase the stroke and widen the adjustment range of the focus of the laser module 3; on the other hand, the two first cylinders 22 can be installed and adjusted in coordination to ensure the accuracy of the zero position state of the first cylinder 22.

[0056] In addition, when a single first cylinder 22 is damaged, another first cylinder 22 can still work, which can effectively improve the load capacity of the equipment and enhance the overall safety.

[0057] Figure 4 is a schematic diagram of the structure of the adjustment module provided in an embodiment of the present invention, combined with Figure 1 and Figure 4 As shown, the adaptive laser welding device also includes an adjustment module 6, which is disposed on the sliding seat 23 and is used to adjust the position of the laser module 3 in the first direction, the second direction and the third direction (eg, the Y-axis direction).

[0058] In the above embodiment, the adjustment module 6 can adjust the position of the laser module 3 on the X-axis, Y-axis and Z-axis, so as to compensate for the deviation of the laser module 3 during the installation process and ensure that the focus of the laser module 3 coincides with the weld before welding.

[0059] It is easy to understand that this adjustment module 6 is used when installing the laser module 3. That is to say, when installing the laser module 3, the focus of the laser module 3 is adjusted so that the laser module 3 is adapted to the product weld. And during the subsequent processing, there is no need to adjust again.

[0060] Specifically, the adjustment module 6 includes a connecting frame 61, a first adjustment plate 62, a second adjustment plate 63 and a third adjustment plate 64. The connecting frame 61 is fixedly connected to the sliding seat 23. The first adjustment plate 62 is obliquely installed on the connecting frame 61. The second adjustment plate 63 is slidably and obliquely arranged on the first adjustment plate 62 to adjust the position of the second adjustment plate 63 in the first direction and the second direction. The third adjustment plate 64 is slidably arranged on the second adjustment plate 63 to adjust the position of the third adjustment plate 64 in the third direction. The laser module 3 is located on the third adjustment plate 64.

[0061] In the above embodiment, the connecting frame 61 plays a role in connecting the sliding seat 23 and the first adjustment plate 62. The second adjustment plate 63 can adjust the position of the laser module 3 in the Z-axis direction and the X-axis direction, while the third adjustment plate 64 can adjust the position of the laser module 3 in the Y-axis direction.

[0062] Further, a first lead screw 621 is rotatably inserted on the first adjustment plate 62. The first lead screw 621 is in threaded cooperation with the second adjustment plate 63. A second lead screw 631 is rotatably inserted on the second adjustment plate 63. The second lead screw 631 is in threaded cooperation with the third adjustment plate 64.

[0063] In the above embodiment, the rotation of the lead screw can be converted into the linear motion of the adjustment plate, and the driving by the lead screw has high precision and is more stable.

[0064] Exemplarily, the sliding fit between the first adjustment plate 62 and the second adjustment plate 63, and between the second adjustment plate 63 and the third adjustment plate 64 is realized through slide rails.

[0065] In this embodiment, the adjustment module 6 further includes a fourth adjustment plate 65. The fourth adjustment plate 65 is located on the connecting frame 61. The pneumatic clamping module 4 further includes a cylinder mounting seat 44 (see Figure 5 ), two second cylinders 41 are located on the cylinder mounting seat 44. The cylinder mounting seat 44 is slidably arranged on the fourth adjustment plate 65 in the second direction.

[0066] In the above embodiment, the cooperation between the fourth adjustment plate 65 and the cylinder mounting seat 44 can adjust the height of the second cylinder 41, thereby adjusting the height of the clamping wheel 43 to adapt to flanges 100 of different heights.

[0067] Similarly, a third lead screw is rotatably inserted on the fourth adjustment plate 65. The third lead screw is in threaded cooperation with the cylinder mounting seat 44.

[0068] Exemplarily, each lead screw can be driven by a motor to achieve automation.

[0069] Exemplarily, each support frame 42 includes two support monomers 421 arranged at intervals, and a clamping wheel 43 is provided on each support monomer 421. At this time, two sets of clamping wheels 43 can be formed by the four support monomers 421, and the clamping effect is better.

[0070] Figure 6 It is a schematic structural diagram of the laser module provided by the embodiment of the present invention. As Figure 6 shown, the laser module 3 includes a support cylinder 31, a laser 32, and a collimating mirror. The laser 32 is coaxially inserted into one end of the support cylinder 31. The support cylinder 31 is inclined and arranged on the sliding seat 23. The collimating mirror is inserted into the support cylinder 31, and the other end of the support cylinder 31 faces the clamping wheel 43.

[0071] In the above embodiment, the support cylinder 31 plays a role in supporting and positioning the laser 32 and the collimating mirror. The laser 32 emits laser light 200, and is focused by the collimating mirror, so as to perform laser processing on the weld after being emitted from the other end of the support cylinder 31.

[0072] Exemplarily, the laser 32 includes an optical fiber (not shown in the figure) and an optical fiber connector. The optical fiber is inserted into the optical fiber connector, and the optical fiber connector is coaxially inserted into one end of the support cylinder 31.

[0073] Exemplarily, the included angle between the support cylinder 31 and the horizontal plane is 30°, so that the laser processes the weld at an angle of 30°.

[0074] Further, a protective mirror drawer 33 is slidably inserted on the support cylinder 31. A protective mirror is inserted into the protective mirror drawer 33, and the collimating mirror is located between the laser 32 and the protective mirror. Among them, the protective mirror plays a role in anti-fouling protection for the collimating mirror. The protective mirror can be conveniently pulled out through the protective mirror drawer 33, so as to conveniently clean the protective mirror.

[0075] Exemplarily, at the other end of the bracket 1, an air knife assembly 34 and a dust suction assembly 35 are arranged oppositely. The air knife assembly 34 is used for blowing air, and the dust suction assembly 35 is used for dust suction, so that metal welding slag, spatter, dust and other contaminants generated during the laser welding process can be removed by blowing air and suction.

[0076] In addition, a CCD camera module 36, a diaphragm water-cooling block 37, and a collimating water-cooling block 38 are further arranged on the support cylinder 31. The laser welding effect can be observed in real time through the CCD camera module 36, and the support cylinder 31 and the collimating mirror can be cooled by the diaphragm water-cooling block 37 and the collimating water-cooling block 38.

[0077] Those skilled in the art can easily understand that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An adaptive laser welding device, characterized in that, The adaptive laser welding device includes a bracket, a pneumatic balance module, a laser module, a pneumatic clamping module and a control module; The pneumatic balance module includes a slider, a first cylinder, a sliding seat and a solenoid valve unit. The slider is fixedly installed on the bracket. The first cylinder is located on the sliding seat. One end of the first cylinder is in transmission connection with the slider. The slider and the sliding seat are slidably matched in a first direction. The solenoid valve unit is used to control the connection between the air source and the first cylinder to control the piston rod of the first cylinder to extend or retract; The laser module is obliquely arranged on the sliding seat to perform laser processing on the two flanges; The pneumatic clamping module includes two second cylinders, two support frames and at least two clamping wheels. The two second cylinders are both arranged on the sliding seat. The piston rods of the second cylinders are in transmission connection with the corresponding support frames. Each clamping wheel is rotatably arranged on the corresponding support frame. The two clamping wheels are spaced in the first direction, and the axial directions of the clamping wheels are all arranged in a second direction to clamp the two flanges; The control module includes a signal transmitter, three signal receivers capable of receiving the signals emitted by the signal transmitter and a controller. The signal transmitter is located on the slider. The three signal receivers are arranged at intervals in the first direction on the sliding seat. The signal receivers, the controller and the solenoid valve unit are electrically connected in sequence so that after the sliding seat is driven to slide by the first cylinder, the middle signal receiver is arranged opposite to the signal transmitter.

2. An adaptive laser welding device according to claim 1, characterized in that, The number of the first cylinders is two. The two first cylinders are arranged back to back on the sliding seat. A stop block is fixedly arranged on the sliding seat. The stop block is spaced from the slider. The piston rod of one first cylinder is in transmission connection with the slider, and the piston rod of the other first cylinder is in transmission connection with the stop block.

3. An adaptive laser welding device according to claim 1, characterized in that The adaptive laser welding device further includes an adjustment module. The adjustment module is arranged on the sliding seat and is used to adjust the positions of the laser module in the first direction, the second direction and the third direction.

4. An adaptive laser welding device according to claim 3, characterized in that, The adjustment module includes a connecting frame, a first adjustment plate, a second adjustment plate and a third adjustment plate. The connecting frame is fixedly connected to the sliding seat. The first adjustment plate is obliquely installed on the connecting frame. The second adjustment plate is slidably and obliquely arranged on the first adjustment plate to adjust the positions of the second adjustment plate in the first direction and the second direction. The third adjustment plate is slidably arranged on the second adjustment plate to adjust the position of the third adjustment plate in the third direction. The laser module is located on the third adjustment plate.

5. An adaptive laser welding device according to claim 4, characterized in that, A first lead screw is rotatably inserted on the first adjustment plate. The first lead screw is in threaded cooperation with the second adjustment plate. A second lead screw is rotatably inserted on the second adjustment plate. The second lead screw is in threaded cooperation with the third adjustment plate.

6. An adaptive laser welding device according to claim 4, characterized in that The adjustment module further includes a fourth adjustment plate, the fourth adjustment plate is located on the connecting frame, the pneumatic clamping module further includes a cylinder mounting seat, the two second cylinders are located on the cylinder mounting seat, and the cylinder mounting seat is slidably arranged on the fourth adjustment plate along the second direction.

7. An adaptive laser welding device according to claim 1, characterized in that, Each of the support frames includes two support monomers arranged at intervals, and each of the support monomers is provided with one of the clamping wheels.

8. An adaptive laser welding device according to claim 1, characterized in that, The laser module includes a support cylinder, a laser and a collimating mirror. The laser is coaxially inserted into one end of the support cylinder. The support cylinder is inclined and arranged on the sliding seat. The collimating mirror is inserted into the support cylinder, and the other end of the support cylinder faces the clamping wheel.

9. An adaptive laser welding device according to claim 8, characterized in that, A protective mirror drawer is slidably inserted on the support cylinder, a protective mirror is inserted into the protective mirror drawer, and the collimating mirror is located between the laser and the protective mirror.

10. An adaptive laser welding device according to claim 8, characterized in that, The other end of the bracket is provided with a relatively arranged air knife assembly and a dust suction assembly. The air knife assembly is used for blowing air, and the dust suction assembly is used for sucking dust.

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