Laser gun head tilt angle adjustment device

Abstract

The present invention provides a laser gun head tilt angle adjustment device, comprising a laser head welding mechanism, provided with at least two mounting positions sequentially arranged along the Z-axis direction; a first slide mechanism comprising a first displacement device and a second displacement device; a first mounting plate slidable along the X-axis direction is provided on the first displacement device; a second displacement device is arranged on the first mounting plate, and a second mounting plate slidable along the Y-axis direction is provided on the second displacement device; one end of the second mounting plate is hinged to the mounting position; a second slide mechanism comprising a third displacement device and a fourth displacement device; a third mounting plate slidable along the Y-axis direction is provided on the third displacement device; a fourth displacement device is arranged on the third mounting plate, and a fourth mounting plate slidable along the X-axis direction is provided on the fourth displacement device; one end of the fourth mounting plate is hinged to another mounting position. Thus, under the premise of ensuring welding speed and accuracy, the tilt angle adjustment can be effectively controlled to improve the reliability of welding.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding, and in particular to a laser gun head tilt angle adjustment device. Background Art

[0002] Existing laser welding often uses an XYZ three-coordinate slide system. However, due to the fixed inclination angle of the laser gun head, this system can usually weld workpieces that are close to a plane or small workpieces that are easy to rotate or workpieces with a circular welding trajectory. However, for large workpieces that are not convenient for workpiece rotation and require adjustment of the inclination angle of the laser gun head, a six-joint robot must be used for welding. The cost of a six-joint robot is relatively high, and the rigidity and precision of the six-joint robot are lower than those of a slide system. It also has certain limitations for high-speed and high-precision welding. Summary of the invention

[0003] The embodiment of the present invention provides a laser gun head tilt angle adjustment device to solve the problem of fixed tilt angle in existing laser welding.

[0004] An embodiment of the present invention provides a laser gun head tilt angle adjustment device, comprising:

[0005] The laser head welding mechanism is provided with at least two mounting positions arranged in sequence along the Z-axis direction;

[0006] The first slide mechanism comprises: a first displacement device and a second displacement device; the first displacement device is provided with a first mounting plate slidable along the X-axis direction; the second displacement device is arranged on the first mounting plate, and the second displacement device is provided with a second mounting plate slidable along the Y-axis direction; one end of the second mounting plate is hinged to one of the mounting positions;

[0007] The second slide mechanism comprises: a third displacement device and a fourth displacement device; the third displacement device is provided with a third mounting plate slidable along the Y-axis direction; the fourth displacement device is arranged on the third mounting plate, and the fourth displacement device is provided with a fourth mounting plate slidable along the X-axis direction; one end of the fourth mounting plate is hinged to the other mounting position.

[0008] According to a laser gun head tilt angle adjustment device provided by one embodiment of the present invention, the laser gun head tilt angle adjustment device further includes:

[0009] A laser control system is electrically connected to the first displacement device, the second displacement device, the third displacement device and the fourth displacement device, and is used to control the movement of the first mounting plate, the second mounting plate, the third mounting plate and the fourth mounting plate to rotate and / or move the laser head welding mechanism.

[0010] According to the laser gun head tilt angle adjustment device provided by one embodiment of the present invention, the first displacement device is provided with a first driving mechanism, and the first driving mechanism is used to drive the first mounting plate to reciprocate along the X-axis direction on the first displacement device;

[0011] The second displacement device is provided with a second driving mechanism, and the second driving mechanism is used to drive the second mounting plate to reciprocate along the Y-axis direction on the second displacement device;

[0012] The third displacement device is provided with a third driving mechanism, and the third driving mechanism is used to drive the third mounting plate to reciprocate along the Y-axis direction on the third displacement device;

[0013] The fourth displacement device is provided with a fourth driving mechanism, and the fourth driving mechanism is used to drive the fourth mounting plate to reciprocate along the X-axis direction on the fourth displacement device.

[0014] According to a laser gun head tilt adjustment device provided by one embodiment of the present invention, at least two of the mounting positions are respectively provided with a first universal joint and a second universal joint, the second mounting plate is hinged to one of the mounting positions through the first universal joint; the fourth mounting plate is hinged to the other mounting position through the second universal joint.

[0015] According to a laser gun head tilt adjustment device provided by one embodiment of the present invention, the first universal joint and the second universal joint both include:

[0016] An inner ring, wherein the inner ring of the first universal joint is connected to one of the mounting positions, and the inner ring of the second universal joint is connected to the other mounting position;

[0017] The outer ring of the first universal joint is connected to the second mounting plate and is rotatably disposed on the corresponding inner ring; the outer ring of the second universal joint is connected to the fourth mounting plate and is rotatably disposed on the corresponding inner ring.

[0018] According to a laser gun head tilt adjustment device provided by one embodiment of the present invention, the laser head welding mechanism comprises: a laser gun head and a protective cover which are coaxially arranged with each other;

[0019] A cavity is arranged in the protective cover, an opening of the cavity is arranged at the bottom end of the protective cover, and the laser gun head passes through the top end of the protective cover and is at least partially arranged in the cavity.

[0020] According to a laser gun head tilt adjustment device provided by one embodiment of the present invention, the laser head welding mechanism further includes:

[0021] The jet pipe has an air inlet and an air outlet; the air outlet is arranged in the cavity, the air outlet is arranged toward the opening direction, and has an angle with the laser gun head.

[0022] According to a laser gun head tilt angle adjustment device provided by one embodiment of the present invention, the laser gun head tilt angle adjustment device further includes:

[0023] The positioning mechanism comprises: a base, a first clamp body and a second clamp body; the base is provided with a slide groove, the first clamp body and the second clamp body are arranged opposite to each other and can be slidably arranged in the slide groove.

[0024] According to a laser gun head tilt angle adjustment device provided by one embodiment of the present invention, the laser gun head tilt angle adjustment device further includes:

[0025] Two limiting members are arranged on two opposite sides of the base, and at least one limiting member is a movable limiting member with adjustable position.

[0026] According to a laser gun head tilt angle adjustment device provided by one embodiment of the present invention, the laser gun head tilt angle adjustment device further includes:

[0027] An operating table, wherein the top surface of the operating table is provided with a stepped surface, and the stepped surface has a first mounting surface and a second mounting surface; the height of the first mounting surface is greater than the height of the second mounting surface; the first displacement device and the third displacement device are both arranged on the first mounting surface, and the first mounting surface is movable along the Z-axis direction to control the first displacement device and the third displacement device to move along the Z-axis direction; the base of the positioning mechanism is arranged on the second mounting surface.

[0028] The laser gun head tilt angle adjustment device provided by the present invention is provided with a laser head welding mechanism, a first slide mechanism and a second slide mechanism. At least two mounting positions are arranged in sequence along the Z-axis direction on the laser head welding mechanism. The second mounting plate in the first slide mechanism is hinged to one of the mounting positions, and the fourth mounting plate in the second slide mechanism is hinged to the other mounting position. As a result, during the movement of the first mounting plate, the second mounting plate, the third mounting plate and the fourth mounting plate, the laser head welding mechanism can be translated and the tilt angle can be adjusted at the same time. Under the premise of ensuring the welding speed and accuracy, the rotation of the laser gun head tilt angle adjustment device can be effectively controlled to improve the reliability of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a front view of a laser gun head tilt angle adjustment device provided by an embodiment of the present invention;

[0031] Figure 2 is a side view of a laser gun head tilt angle adjustment device provided by another embodiment of the present invention;

[0032] Figure 3 is a top view of a laser gun head tilt angle adjustment device provided by another embodiment of the present invention;

[0033] Reference numerals:

[0034] Among them, 100, the first slide mechanism; 1010, the first displacement device; 1011, the first mounting plate; 1012, the first driving mechanism; 1020, the second displacement device; 1021, the second mounting plate; 1022, the second driving mechanism; 200, the second slide mechanism; 2010, the third displacement device; 2011, the third mounting plate; 2012, the third driving mechanism; 2020, the fourth displacement device; 2021, the fourth mounting plate; 2022, the fourth driving mechanism; 300, the laser head welding mechanism; 310, the first universal joint; 320, the second universal joint; 330, the laser gun head; 340, the protective cover; 400, the positioning mechanism; 410, the first clamping body; 420, the second clamping body; 430, the base; 440, the limiter; 500, the operating table. DETAILED DESCRIPTION

[0035] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0036] In the description of the embodiments of the present invention, the terms “first” and “second” are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0037] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0039] The present invention provides a laser gun head tilt angle adjustment device, such as Figures 1 to 3 As shown, the laser gun head tilt angle adjustment device includes: a laser head welding mechanism 300 , a first slide mechanism 100 and a second slide mechanism 200 .

[0040] Among them, the laser head welding mechanism 300 is used to output laser. The laser head welding mechanism 300 is provided with at least two mounting positions arranged in sequence along the Z-axis direction. The mounting positions are arranged in sequence at intervals, and the number of mounting positions can be adjusted as needed.

[0041] The first slide mechanism 100 includes: a first displacement device 1010 and a second displacement device 1020. The first displacement device 1010 is arranged along the X-axis direction as a whole, and the second displacement device 1020 is arranged along the Y-axis direction as a whole. The first displacement device 1010 is provided with a first mounting plate 1011 that can slide along the X-axis direction, that is, the first mounting plate 1011 can move along the positive direction or the negative direction of the X-axis on the first displacement device 1010. The second displacement device 1020 is arranged on the first mounting plate 1011, so that the second displacement device 1020 can move along the positive direction or the negative direction of the X-axis on the first mounting plate 1011, and the second displacement device 1020 is provided with a second mounting plate 1021 that can slide along the Y-axis direction, and one end of the second mounting plate 1021 is hinged to one of the mounting positions, so that the laser head welding mechanism 300 can move along the positive direction or the negative direction of the Y-axis under the operation of the second mounting plate 1021.

[0042] The second slide mechanism 200 includes: a third displacement device 2010 and a fourth displacement device 2020. The third displacement device 2010 is arranged along the Y-axis direction as a whole, and the fourth displacement device 2020 is arranged along the X-axis direction as a whole. The third displacement device 2010 is provided with a third mounting plate 2011 which is slidable along the Y-axis direction, that is, the third mounting plate 2011 can move along the positive direction or the negative direction of the Y-axis on the third displacement device 2010, and the fourth displacement device 2020 is arranged on the third mounting plate 2011, so that the fourth displacement device 2020 can move along the positive direction or the negative direction of the Y-axis on the third mounting plate 2011, and the fourth displacement device 2020 is provided with a fourth mounting plate 2021 which is slidable along the X-axis direction, and one end of the fourth mounting plate 2021 is hinged to another mounting position, so that the laser head welding mechanism 300 can move along the positive direction or the negative direction of the X-axis under the operation of the fourth mounting plate 2021.

[0043] During the operation of the first displacement device 1010 , the second displacement device 1020 , the third displacement device 2010 and the fourth displacement device 2020 , the laser head welding mechanism 300 can be adjusted in translation or inclination angle.

[0044] Specifically, when the second mounting plate 1021 moves along the Y-axis direction in the second displacement device 1020, if the third mounting plate 2011 also moves along the Y-axis direction in the third displacement device 2010, and the second mounting plate 1021 and the third mounting plate 2011 move asynchronously (the second mounting plate 1021 and the third mounting plate 2011 move at different speeds, or the final displacements are different), since one end of the second mounting plate 1021 is hinged to one of the mounting positions of the laser head welding mechanism 300, and one end of the fourth mounting plate 2021 is hinged to the other mounting position of the laser head welding mechanism 300, the laser head welding mechanism 300 rotates around the X-axis at this time, thereby realizing the adjustment of the inclination angle of the laser head welding mechanism 300.

[0045] Similarly, when the first mounting plate 1011 moves along the X-axis direction on the first displacement device 1010, if the fourth mounting plate 2021 also moves along the X-axis direction on the fourth displacement device 2020, and the first mounting plate 1011 and the fourth mounting plate 2021 move asynchronously (the first mounting plate 1011 and the fourth mounting plate 2021 move at different speeds, or the final displacements are different), since one end of the second mounting plate 1021 is hinged to one of the mounting positions of the laser head welding mechanism 300, and one end of the fourth mounting plate 2021 is hinged to the other mounting position of the laser head welding mechanism 300, the laser head welding mechanism 300 rotates around the Y-axis at this time to achieve the adjustment of the inclination angle of the laser head welding mechanism 300.

[0046] When the second mounting plate 1021 moves along the Y-axis direction in the second displacement device 1020, if the third mounting plate 2011 also moves along the Y-axis direction in the third displacement device 2010, and the second mounting plate 1021 and the third mounting plate 2011 move synchronously (the second mounting plate 1021 and the third mounting plate 2011 move at the same speed, or the final displacement is the same), since one end of the second mounting plate 1021 is hinged to one of the mounting positions of the laser head welding mechanism 300, and one end of the fourth mounting plate 2021 is hinged to the other mounting position of the laser head welding mechanism 300, the laser head welding mechanism 300 moves along the Y-axis direction at this time, thereby realizing the adjustment of the movement of the laser head welding mechanism 300.

[0047] Similarly, when the first mounting plate 1011 moves along the X-axis direction on the first displacement device 1010, if the fourth mounting plate 2021 also moves along the X-axis direction on the fourth displacement device 2020, and the first mounting plate 1011 and the fourth mounting plate 2021 move synchronously (the first mounting plate 1011 and the fourth mounting plate 2021 move at the same speed, or the final displacement is the same), since one end of the second mounting plate 1021 is hinged to one of the mounting positions of the laser head welding mechanism 300, and one end of the fourth mounting plate 2021 is hinged to the other mounting position of the laser head welding mechanism 300, the laser head welding mechanism 300 moves along the X-axis direction at this time, thereby realizing the adjustment of the movement of the laser head welding mechanism 300.

[0048] When the second mounting plate 1021 moves along the Y-axis direction on the second displacement device 1020, if the third mounting plate 2011 also moves along the Y-axis direction on the third displacement device 2010, and the second mounting plate 1021 and the third mounting plate 2011 move synchronously (the second mounting plate 1021 and the third mounting plate 2011 move at the same speed, or the final displacement is the same), during the asynchronous movement of the first mounting plate 1011 and the fourth mounting plate 2021, the laser head welding mechanism 300 moves along the Y-axis direction, and at the same time, the laser head welding mechanism 300 rotates around the Y-axis, thereby realizing the inclination angle adjustment and translation of the laser head welding mechanism 300.

[0049] Similarly, when the first mounting plate 1011 moves along the X-axis direction on the first displacement device 1010, if the fourth mounting plate 2021 also moves along the X-axis direction on the fourth displacement device 2020, and the first mounting plate 1011 and the fourth mounting plate 2021 move synchronously (the first mounting plate 1011 and the fourth mounting plate 2021 move at the same speed, or the final displacement is the same), the second mounting plate 1021 and the third mounting plate 2011 move asynchronously. At this time, the laser head welding mechanism 300 moves along the X-axis direction, and the laser head welding mechanism 300 rotates around the X-axis, thereby realizing the inclination angle adjustment and translation of the laser head welding mechanism 300.

[0050] The laser gun head tilt angle adjustment device provided in the embodiment of the present invention is provided with a laser head welding mechanism, a first slide mechanism and a second slide mechanism. The laser head welding mechanism is provided with at least two mounting positions sequentially arranged along the Z-axis direction, and the second mounting plate in the first slide mechanism is hinged to one of the mounting positions, and the fourth mounting plate in the second slide mechanism is hinged to the other mounting position. As a result, during the movement of the first mounting plate, the second mounting plate, the third mounting plate and the fourth mounting plate, the laser head welding mechanism can perform translation or tilt angle adjustment, and under the premise of ensuring the welding speed and accuracy, the tilt angle adjustment can be effectively controlled to improve the reliability of welding.

[0051] In order to realize the control of the laser gun head tilt adjustment device, such as Figure 1 and Figure 2 As shown, the laser gun head tilt angle adjustment device also includes: a laser control system. The laser control system is electrically connected to the first displacement device 1010, the second displacement device 1020, the third displacement device 2010 and the fourth displacement device 2020, and the laser control system is used to control the movement of the first mounting plate 1011, the second mounting plate 1021, the third mounting plate 2011 and the fourth mounting plate 2021, so that the laser head welding mechanism 300 can be angle adjusted and / or translated.

[0052] Specifically, when the laser control system controls the second mounting plate 1021 to move along the Y-axis direction of the second displacement device 1020, the laser control system also controls the third mounting plate 2011 to move along the Y-axis direction when the third displacement device 2010 also moves along the Y-axis direction, and the second mounting plate 1021 and the third mounting plate 2011 move asynchronously (the second mounting plate 1021 and the third mounting plate 2011 move at different speeds, or the final displacements are different). Since one end of the second mounting plate 1021 is hinged to one of the mounting positions of the laser head welding mechanism 300, and one end of the fourth mounting plate 2021 is hinged to the other mounting position of the laser head welding mechanism 300, the laser head welding mechanism 300 can rotate around the X-axis at this time to achieve adjustment of the inclination angle of the laser head welding mechanism 300.

[0053] Similarly, when the laser control system controls the first mounting plate 1011 to move along the X-axis direction on the first displacement device 1010, the laser control system also controls the fourth mounting plate 2021 to move along the X-axis direction on the fourth displacement device 2020, and the first mounting plate 1011 and the fourth mounting plate 2021 move asynchronously (the first mounting plate 1011 and the fourth mounting plate 2021 move at different speeds, or the final displacements are different). Since one end of the second mounting plate 1021 is hinged to one of the mounting positions of the laser head welding mechanism 300, and one end of the fourth mounting plate 2021 is hinged to the other mounting position of the laser head welding mechanism 300, the laser head welding mechanism 300 can rotate around the Y-axis at this time to achieve adjustment of the inclination angle of the laser head welding mechanism 300.

[0054] When the laser control system controls the second mounting plate 1021 to move along the Y-axis direction in the second displacement device 1020, the laser control system also controls the third mounting plate 2011 to move along the Y-axis direction in the third displacement device 2010, and the second mounting plate 1021 and the third mounting plate 2011 move synchronously (the second mounting plate 1021 and the third mounting plate 2011 move at the same speed, or the final displacement is the same). Since one end of the second mounting plate 1021 is hinged to one of the mounting positions of the laser head welding mechanism 300, and one end of the fourth mounting plate 2021 is hinged to the other mounting position of the laser head welding mechanism 300, the laser head welding mechanism 300 can move along the Y-axis direction at this time to realize the adjustment of the movement of the laser head welding mechanism 300.

[0055] Similarly, when the laser control system controls the first mounting plate 1011 to move along the X-axis direction on the first displacement device 1010, the laser control system also controls the fourth mounting plate 2021 to move along the X-axis direction on the fourth displacement device 2020, and the first mounting plate 1011 and the fourth mounting plate 2021 move synchronously (the first mounting plate 1011 and the fourth mounting plate 2021 move at the same rate, or the final displacement is the same). Since one end of the second mounting plate 1021 is hinged to one of the mounting positions of the laser head welding mechanism 300, and one end of the fourth mounting plate 2021 is hinged to the other mounting position of the laser head welding mechanism 300, the laser head welding mechanism 300 can move along the X-axis direction at this time to achieve adjustment of the movement of the laser head welding mechanism 300.

[0056] When the laser control system controls the second mounting plate 1021 to move along the Y-axis direction on the second displacement device 1020, the laser control system also controls the third mounting plate 2011 to move along the Y-axis direction on the third displacement device 2010, and the second mounting plate 1021 and the third mounting plate 2011 move synchronously (the second mounting plate 1021 and the third mounting plate 2011 move at the same speed, or the final displacement is the same). During the asynchronous movement of the first mounting plate 1011 and the fourth mounting plate 2021, the laser head welding mechanism 300 can move along the Y-axis direction, and the laser head welding mechanism 300 can rotate around the Y-axis, thereby realizing the inclination angle adjustment and translation of the laser head welding mechanism 300.

[0057] Similarly, when the laser control system controls the first mounting plate 1011 to move along the X-axis direction on the first displacement device 1010, the laser control system also controls the fourth mounting plate 2021 to move along the X-axis direction on the fourth displacement device 2020, and the first mounting plate 1011 and the fourth mounting plate 2021 move synchronously (the first mounting plate 1011 and the fourth mounting plate 2021 move at the same speed, or the final displacement is the same), and the second mounting plate 1021 and the third mounting plate 2011 move asynchronously, the laser head welding mechanism 300 can move along the X-axis direction, and the laser head welding mechanism 300 can rotate around the X-axis, and the inclination angle adjustment and translation of the laser head welding mechanism 300 can be realized at the same time.

[0058] In one example, if Figures 1 to 3 As shown, in order to facilitate the control of the movement of the first mounting plate 1011, the second mounting plate 1021, the third mounting plate 2011 and the fourth mounting plate 2021. The first displacement device 1010 is provided with a first driving mechanism 1012, and the first driving mechanism is used to drive the first mounting plate to reciprocate along the X-axis direction on the first displacement device 1010. The second displacement device 1020 is provided with a second driving mechanism 1022, and the second driving mechanism is used to drive the second mounting plate to reciprocate along the Y-axis direction on the second displacement device. The third displacement device 2010 is provided with a third driving mechanism 2012, and the third driving mechanism is used to drive the third mounting plate to reciprocate along the Y-axis direction on the third displacement device 2010. The fourth displacement device 2020 is provided with a fourth driving mechanism 2022, and the fourth driving mechanism is used to drive the fourth mounting plate to reciprocate along the X-axis direction on the fourth displacement device.

[0059] The first driving mechanism 1012 , the second driving mechanism 1022 , the third driving mechanism 2012 and the fourth driving mechanism 2022 may be pneumatically controlled or electrically controlled.

[0060] When the laser gun head tilt adjustment device adopts pneumatic control, the first drive mechanism 1012, the second drive mechanism 1022, the third drive mechanism 2012 and the fourth drive mechanism 2022 can all adopt cylinder drive mechanisms, which convert the pressure of compressed air into mechanical energy through pneumatic transmission, so that the corresponding first mounting plate 1011, the second mounting plate 1021, the third mounting plate 2011 and the fourth mounting plate 2021 can perform linear motion.

[0061] When the laser gun head tilt adjustment device adopts electronic control, the first drive mechanism 1012, the second drive mechanism 1022, the third drive mechanism 2012 and the fourth drive mechanism 2022 can all adopt motor drive mechanisms, and directly control the first mounting plate 1011, the second mounting plate 1021, the third mounting plate 2011 and the fourth mounting plate 2021 to perform linear motion by turning on and off the power.

[0062] Based on the above embodiments, in one embodiment provided by the present invention, as Figures 1 to 3 As shown, at least two installation positions are provided with a first universal joint 310 and a second universal joint 320 respectively, the second installation plate 1021 is hinged to one of the installation positions through the first universal joint 310 , and the fourth installation plate 2021 is hinged to the other installation position through the second universal joint 320 .

[0063] In this embodiment, the laser gun head tilt angle adjustment device is provided with two installation positions, one of which is provided with a first universal joint 310, and the other is provided with a second universal joint 320. Therefore, when the second mounting plate 1021 and the third mounting plate 2011 move asynchronously, or when the first mounting plate 1011 and the fourth mounting plate 2021 move asynchronously, the tilt angle of the laser head welding mechanism 300 can be adjusted through the first universal joint 310 and the second universal joint 320.

[0064] If there are more than two installation positions on the laser gun head tilt adjustment device, the first universal joint 310 and the second universal joint 320 can select any two installation positions for hinge connection. Since each installation position is arranged in sequence along the Z-axis direction, the height of the laser head welding mechanism 300 can be adjusted according to different installation position selections.

[0065] For example, the laser gun head tilt adjustment device is provided with mounting positions A, B, C, and D arranged in sequence from top to bottom along the Z-axis direction. In the initial state, the first universal joint 310 is set at the mounting position A, and the second universal joint 320 is set at the mounting position B. If the height of the laser head welding mechanism 300 needs to be lowered, the first universal joint 310 can be set at the mounting position B, and the second universal joint 320 can be set at the mounting position C. If the height of the laser head welding mechanism 300 needs to be further lowered, the first universal joint 310 can be set at the mounting position C, and the second universal joint 320 can be set at the mounting position D.

[0066] Further, the first universal joint 310 and the second universal joint 320 have the same structure, and both include: an inner ring and an outer ring. The inner ring of the first universal joint 310 is connected to one of the mounting positions, and the inner ring of the second universal joint 320 is connected to the other mounting position. The outer ring of the first universal joint 310 is connected to the second mounting plate 1021, and the first universal joint 310 is rotatably arranged on the corresponding inner ring. The outer ring of the second universal joint 320 is connected to the fourth mounting plate 2021, and the second universal joint 320 is rotatably arranged on the corresponding inner ring.

[0067] Based on the above embodiments, in one embodiment provided by the present invention, as Figures 1 to 3 As shown, the laser head welding mechanism 300 includes: a laser gun head 330 and a protective cover 340 which are coaxially arranged with each other; the protective cover 340 is a shell structure for protecting the laser gun head 330. A cavity is provided in the protective cover 340, and an opening of the cavity is provided at the bottom end of the protective cover 340. The laser gun head 330 is used to emit laser, and the laser gun head 330 passes through the top end of the protective cover 340. At the same time, the laser gun head 330 is at least partially arranged in the cavity, that is, the emitting end of the laser gun head 330 is arranged in the protective cover 340.

[0068] During operation, when the tilt angle of the laser gun head 330 needs to be moved or adjusted, the movement of the first mounting plate 1011, the second mounting plate 1021, the third mounting plate 2011 and the fourth mounting plate 2021 can be directly controlled to adjust the tilt angle and / or move the laser gun head 330.

[0069] In order to protect the laser gun head 330, the laser head welding mechanism further includes: an air jet pipe. The air jet pipe has an air inlet and an air outlet; the air inlet of the air jet pipe is connected to the inert gas pipe, the air outlet of the air jet pipe is arranged in the cavity, the air outlet of the air jet pipe is arranged in the opening direction, and an angle is formed between the air outlet of the air jet pipe and the laser gun head 330.

[0070] The air inlet of the jet pipe is connected to the inert gas pipe, so that during operation, the air outlet of the jet pipe can blow out protective gases such as argon and nitrogen. In addition, since there is an angle between the air outlet of the jet pipe and the laser gun head 330, the welding track is kept at a certain position, which is beneficial to the protection and cooling of the weld.

[0071] Based on the above embodiments, in one embodiment provided by the present invention, as Figures 1 to 3 As shown, the laser gun head tilt angle adjustment device also includes: a positioning mechanism 400. The positioning mechanism 400 is used to fix the welding workpiece. The positioning mechanism 400 is opposite to the laser head welding mechanism 300, and the two are arranged at a certain distance.

[0072] In order to facilitate the adjustment of the welding workpiece position, the positioning mechanism 400 includes: a base 430, a first clamp body 410 and a second clamp body 420; a slide groove is provided on the base 430, the first clamp body 410 and the second clamp body 420 are arranged opposite to each other, and the first clamp body 410 and the second clamp body 420 can be slidably arranged in the slide groove.

[0073] When it is necessary to fix the welding workpiece, the welding workpiece is directly set between the first clamp body 410 and the second clamp body 420. The welding workpiece can be clamped by moving the first clamp body 410 and the second clamp body 420, and then the position of the laser head welding mechanism 300 is adjusted. When the laser head welding mechanism 300 is aligned with the welding workpiece, welding of the welding workpiece can be achieved.

[0074] like Figures 1 to 3 As shown, in order to increase the stability of the welding workpiece, the laser gun head inclination adjustment device also includes: two limit members 440, the two limit members 440 are arranged on opposite sides of the base 430, and the two limit members 440 are respectively used to limit the movement of the first clamp body 410 and the second clamp body 420, and at least one limit member 440 is a movable limit member with adjustable position.

[0075] In this embodiment, two limiters 440 are respectively arranged on the left and right sides of the base 430, and the limiter 440 arranged on the left side is used to limit the first clamp body 410, and the limiter 440 arranged on the right side is used to limit the second clamp body 420. When it is necessary to fix the welding workpiece, the welding workpiece is directly set between the first clamp body 410 and the second clamp body 420, and the movement of the first clamp body 410 and the second clamp body 420 is controlled by adjusting the two limiters 440 to clamp the welding workpiece, and then the position of the laser head welding mechanism 300 is adjusted, and the welding of the welding workpiece can be achieved when the laser head welding mechanism 300 is aligned with the welding workpiece.

[0076] In addition, the laser gun head tilt angle adjustment device further includes: an operation table 500. The operation table 500 is provided with buttons corresponding to various functions, which can be used to control the operation of the first displacement device 1010, the second displacement device 1020, the third displacement device 2010 and the fourth displacement device 2020. The user can directly control the movement of the first mounting plate 1011, the second mounting plate 1021, the third mounting plate 2011 and the fourth mounting plate 2021 through the operation table 500.

[0077] The top surface of the operating table 500 is provided with a stepped surface, and the stepped surface has at least a first mounting surface and a second mounting surface. The height of the first mounting surface is greater than the height of the second mounting surface. The first displacement device 1010 and the third displacement device 2010 are both arranged on the first mounting surface. In this embodiment, the first displacement device 1010 is arranged on the first mounting surface along the X-axis direction, and the third displacement device 2010 is arranged on the first mounting surface along the Y-axis direction. The first mounting surface is movable along the Z-axis direction, so that the first displacement device 1010 and the third displacement device 2010 can be controlled to move along the Z-axis direction. The base 430 of the positioning mechanism 400 is arranged on the second mounting surface. Through the difference in height between the first mounting surface and the second mounting surface, the laser head welding mechanism 300 and the positioning mechanism 400 are spaced apart from each other, so as to facilitate the adjustment of the position and angle of the laser head welding mechanism 300.

[0078] According to user needs, the first mounting surface can be set as a mounting surface that is movable along the Z-axis direction. The height of the first mounting surface as a whole is controlled by a lifting device. At this time, the first displacement device 1010 and the third displacement device 2010 are set on the first mounting surface. Therefore, the entire first slide mechanism 100 and the second slide mechanism 200 can be moved along the Z-axis direction as a whole, so that the height of the laser head welding mechanism 300 can be adjusted, and the welding position and welding trajectory can be adjusted.

[0079] It should be noted that a plurality of slide rails arranged along the Z-axis direction may be directly arranged on the first mounting surface, and the first displacement device 1010 and the third displacement device 2010 may be slidably arranged on the corresponding slide rails separately or as a whole, so as to adjust the height of the laser head welding mechanism 300.

[0080] In addition, the second mounting surface can also be set as a mounting surface that is movable along the Z-axis direction, and the height of the second mounting surface as a whole is controlled by a lifting device. At this time, the first displacement device 1010 and the third displacement device 2010 are set on the first mounting surface, so that the positioning mechanism 400 can be moved along the Z-axis direction, thereby adjusting the height of the positioning mechanism 400, and then adjusting the welding position and welding trajectory.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

[0082] The above embodiments are only used to illustrate the present invention, but not to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A laser gun head tilt angle adjustment device, characterized in that: include: The laser head welding mechanism is provided with at least two mounting positions arranged in sequence along the Z-axis direction; The first slide mechanism comprises: a first displacement device and a second displacement device; the first displacement device is provided with a first mounting plate slidable along the X-axis direction; the second displacement device is arranged on the first mounting plate, and the second displacement device is provided with a second mounting plate slidable along the Y-axis direction; one end of the second mounting plate is hinged to one of the mounting positions; The second slide mechanism comprises: a third displacement device and a fourth displacement device; the third displacement device is provided with a third mounting plate slidable along the Y-axis direction; the fourth displacement device is arranged on the third mounting plate, and the fourth displacement device is provided with a fourth mounting plate slidable along the X-axis direction; one end of the fourth mounting plate is hinged to the other mounting position.

2. The laser gun head tilt angle adjustment device according to claim 1, characterized in that: The laser gun head tilt angle adjustment device also includes: A laser control system is electrically connected to the first displacement device, the second displacement device, the third displacement device and the fourth displacement device, and is used to control the movement of the first mounting plate, the second mounting plate, the third mounting plate and the fourth mounting plate to rotate and / or move the laser head welding mechanism.

3. The laser gun head tilt angle adjustment device according to claim 1, characterized in that: The first displacement device is provided with a first driving mechanism, and the first driving mechanism is used to drive the first mounting plate to reciprocate along the X-axis direction on the first displacement device; The second displacement device is provided with a second driving mechanism, and the second driving mechanism is used to drive the second mounting plate to reciprocate along the Y-axis direction on the second displacement device; The third displacement device is provided with a third driving mechanism, and the third driving mechanism is used to drive the third mounting plate to reciprocate along the Y-axis direction on the third displacement device; The fourth displacement device is provided with a fourth driving mechanism, and the fourth driving mechanism is used to drive the fourth mounting plate to reciprocate along the X-axis direction on the fourth displacement device.

4. The laser gun head tilt adjustment device according to any one of claims 1 to 3, characterized in that: At least two of the installation positions are respectively provided with a first universal joint and a second universal joint, the second installation plate is hinged to one of the installation positions through the first universal joint; the fourth installation plate is hinged to the other installation position through the second universal joint.

5. The laser gun head tilt angle adjustment device according to claim 4, characterized in that: The first universal joint and the second universal joint both include: an inner ring, wherein the inner ring of the first universal joint is connected to one of the mounting positions, and the inner ring of the second universal joint is connected to the other mounting position; The outer ring of the first universal joint is connected to the second mounting plate and is rotatably disposed on the corresponding inner ring; the outer ring of the second universal joint is connected to the fourth mounting plate and is rotatably disposed on the corresponding inner ring.

6. The laser gun head tilt angle adjustment device according to any one of claims 1 to 3, characterized in that: The laser head welding mechanism comprises: a laser gun head and a protective cover which are coaxially arranged with each other; A cavity is arranged in the protective cover, an opening of the cavity is arranged at the bottom end of the protective cover, the laser gun head passes through the top end of the protective cover, and the laser gun head is at least partially arranged in the cavity.

7. The laser gun head tilt angle adjustment device according to claim 6, characterized in that: The laser head welding mechanism also includes: The jet pipe has an air inlet and an air outlet; the air outlet is arranged in the cavity, the air outlet is arranged toward the opening direction, and has an angle with the laser gun head.

8. The laser gun head tilt angle adjustment device according to any one of claims 1 to 3, characterized in that: The laser gun head tilt angle adjustment device also includes: The positioning mechanism comprises: a base, a first clamp body and a second clamp body; the base is provided with a slide groove, the first clamp body and the second clamp body are arranged opposite to each other and can be slidably arranged in the slide groove.

9. The laser gun head tilt angle adjustment device according to claim 8, characterized in that: The laser gun head tilt angle adjustment device also includes: Two limiting members are arranged on two opposite sides of the base, and at least one limiting member is a movable limiting member with adjustable position.

10. The laser gun head tilt angle adjustment device according to claim 8, characterized in that: The laser gun head tilt angle adjustment device also includes: An operating table, wherein the top surface of the operating table is provided with a stepped surface, and the stepped surface has a first mounting surface and a second mounting surface; the height of the first mounting surface is greater than the height of the second mounting surface, the first displacement device and the third displacement device are both arranged on the first mounting surface, and the first mounting surface is movable along the Z-axis direction to control the first displacement device and the third displacement device to move along the Z-axis direction; the base of the positioning mechanism is arranged on the second mounting surface.

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