Laser welding device and laser welding equipment

Abstract

The utility model discloses a laser welding device and laser welding equipment, and relates to the technical field of laser welding, the laser welding device comprises a moving module, a laser head, a detection module and a controller, the moving module comprises a first moving assembly, a second moving assembly, a third moving assembly and a rotating assembly, the second moving assembly is connected to the output end of the first moving assembly; the output end of the third moving assembly is connected to the second moving assembly, and the rotating assembly is connected to the output end of the third moving assembly; the laser head is connected to the output end of the moving module; the detection module is connected to the output end of the third moving assembly and used for detecting a to-be-welded point. And the moving module and the detection module are electrically connected with the controller. According to the technical scheme, automation of position adjustment of the laser head and the to-be-welded spot is achieved, the focus of laser accurately falls on the to-be-welded spot, and then the laser welding precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser processing, and particularly relates to a laser welding device and a laser welding equipment. Background Art

[0002] Laser welding is to locally heat a material in a small area by using a high-energy laser pulse. The energy radiated by the laser diffuses into the interior of the material through heat conduction, and a specific molten pool is formed after melting the material.

[0003] Before welding a workpiece, it is necessary to adjust the distance between the laser head and the workpiece so that the focal position of the emitted laser exactly falls on the welding position of the workpiece. However, when laser welding the workpiece, since the distances between the welding positions of the workpiece and the laser head are not all the same, the focal point of the emitted laser is often made to fall on the welding position of the workpiece by means of manual measurement and focusing. However, this focusing method has low focusing accuracy and affects the accuracy and quality of laser welding. Summary of the Utility Model

[0004] The main object of the utility model is to propose a laser welding device and a laser welding equipment, aiming to realize the automation of the position adjustment between the laser head and the welding point, so that the focal point of the laser accurately falls on the welding point, thereby improving the accuracy of laser welding.

[0005] To achieve the above object, a laser welding device proposed by the utility model is used for welding a workpiece. The laser welding device includes:

[0006] A moving module, which includes a first moving component, a second moving component, a third moving component and a rotating component. The second moving component is connected to the output end of the first moving component; the output end of the third moving component is connected to the second moving component, and the rotating component is connected to the output end of the third moving component;

[0007] A laser head, which is connected to the output end of the rotating component;

[0008] A detection module, which is connected to the output end of the third moving component and is used for detecting the welding point; and

[0009] A controller, to which the moving module and the detection module are electrically connected;

[0010] Wherein, the moving directions of the first moving component, the second moving component and the third moving component are perpendicular to each other in pairs, and the rotating plane of the moving module is perpendicular to the moving direction of the first moving component.

[0011] In one embodiment, the first moving component includes a first driving member, a first slide rail, and a first mounting plate. The first driving member is connected to the first slide rail. The first mounting plate is connected to the first slide rail and is connected to the output end of the first driving member. The second moving component is connected to the first mounting plate. The first mounting plate is provided with a first sensing piece, and the first slide rail is provided with a first sensor corresponding to the first sensing piece. The first sensor is used to detect the position of the first mounting plate. The first driving member and the first sensor are electrically connected to the controller.

[0012] In one embodiment, the second moving component includes a second driving member, a second slide rail, and a mounting bracket. The second slide rail is connected to the first mounting plate. The second driving member is connected to the second slide rail. The mounting bracket is connected to the second slide rail and is connected to the output end of the second driving member. The third moving component is connected to the mounting bracket. The mounting bracket is provided with a second sensing piece, and the second slide rail is provided with a second sensor corresponding to the second sensing piece. The second sensor is used to detect the position of the mounting bracket. The second driving member and the second sensor are electrically connected to the controller.

[0013] In one embodiment, the mounting bracket includes a second mounting plate, a support plate, and a connecting plate. The second mounting plate is connected to the second slide rail and is connected to the output end of the second driving member. The connecting plate is perpendicularly connected to the second mounting plate. The third moving component is connected to the connecting plate. The support plate has a first surface and a second surface connected at an angle. The first surface and the second surface are respectively connected to the second mounting plate and the connecting plate.

[0014] In one embodiment, the third moving component includes a third driving member, a third slide rail, and a third mounting plate. The third slide rail is connected to the connecting plate. The third driving member is connected to the third slide rail. The third mounting plate is connected to the third slide rail and is connected to the output end of the third driving member. The rotating component is connected to the third mounting plate. The third mounting plate is provided with a third sensing piece, and the third slide rail is provided with a third sensor corresponding to the third sensing piece. The third sensor is used to detect the position of the third mounting plate. The third driving member and the third sensor are electrically connected to the controller.

[0015] In one embodiment, the rotating component includes a mounting box, a turntable, and a knob. The mounting box is connected to the output end of the third moving component. The turntable is disposed on a surface of the mounting box facing away from the third moving component. The laser head is connected to the turntable. The knob is rotatably connected to the mounting box. The knob is used to drive the turntable to drive the laser head to rotate.

[0016] In one embodiment, the installation box is provided with a dial, and the dial is arranged around the turntable;

[0017] And / or, the knob is provided with graduations, and the graduations are arranged along the circumferential direction of the knob.

[0018] In one embodiment, the detection module includes a CCD detection component and a ranging sensor. The CCD detection component is connected to one side of the installation box facing away from the first moving component. The ranging sensor is connected to the installation box through a connecting rod, and the extending direction of the connecting rod is consistent with the setting direction of the CCD detection component.

[0019] In one embodiment, the laser welding device further includes a blowing component. The blowing component is connected to the laser head, and the blowing component is provided with a blowing port, and the blowing port is arranged facing the output end of the laser head.

[0020] The present utility model also proposes a laser welding device, which includes a base, a fixing device and the laser welding device as described above. The fixing device is connected to the base, and the fixing device is used to fix the workpiece to be processed. The laser welding device is correspondingly connected to the base with respect to the fixing device.

[0021] The laser welding device in the technical solution of the present utility model is composed of a moving module, a laser head, a detection module and a controller. When welding a workpiece, the detection module detects the position information of the welding point of the workpiece to be welded, and then transmits the collected position information to the controller. The controller controls the translation module to drive the laser head to move according to the position information, so that the focus of the emitted laser falls on the welding point to be welded, so as to improve the adjustment accuracy of the laser welding device, and further improve the accuracy and quality of laser welding. The moving module is composed of a first moving component, a second moving component, a third moving component and a rotating component. The moving directions of the first moving component, the second moving component and the third moving component are perpendicular to each other in pairs, so that the laser head obtains a three-dimensional moving space, and the laser head can reach any position in this moving space. In this way, the laser head can be applicable to a variety of workpieces to be processed with different models. The rotating component is used to adjust the emission direction of the laser head. In this way, the laser head meets various welding requirements such as flat welding and fillet welding, and improves the applicable scenarios of the laser welding device. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0023] Figure 1 The structural schematic diagram of a laser welding device in an embodiment provided by the present utility model;

[0024] Figure 2 Another structural schematic diagram of a laser welding device in an embodiment provided by the present utility model;

[0025] Figure 3 The structural schematic diagram of a partial moving device in an embodiment provided by the present utility model;

[0026] Figure 4 The structural schematic diagram of a rotating assembly and a detection module in an embodiment provided by the present utility model;

[0027] Figure 5 The structural schematic diagram of a laser head and a blowing assembly in an embodiment provided by the present utility model;

[0028] Figure 6 The structural schematic diagram of a laser welding device in an embodiment provided by the present utility model.

[0029] Explanation of the reference numerals in the drawings:

[0030] 100, laser welding device; 1, moving module; 11, first moving component; 111, first driving member; 112, first slide rail; 1121, first inductor; 113, first mounting plate; 1131, first induction piece; 12, second moving component; 121, second driving member; 122, second slide rail; 1221, second inductor; 123, mounting bracket; 1231, second mounting plate; 1232, support plate; 1233, connecting plate; 1234, second induction piece; 13, third moving component; 131, third driving member; 132, third slide rail; 1321, third inductor; 133, third mounting plate; 1331, third induction piece; 14, rotating assembly; 141, mounting box; 142, turntable; 143, knob; 144, scale; 2, laser head; 3, detection module; 31, CCD detection component; 311, CCD camera; 312, annular lamp; 32, distance measuring sensor; 321, connecting rod; 4, blowing assembly; 41, mounting piece; 42, air valve; 43, conduit; 200, laser welding equipment; 5, base; 6, fixing device.

[0031] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0033] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] Please refer to Figures 1 to 6 As shown, the present invention provides a laser welding device 100 for welding workpieces. The laser welding device 100 includes a moving module 1, a laser head 2, a detection module 3, and a controller. The moving module 1 includes a first moving component 11, a second moving component 12, a third moving component 13, and a rotating component 14. The second moving component 12 is connected to the output end of the first moving component 11; the output end of the third moving component 13 is connected to the second moving component 12, and the rotating component 14 is connected to the output end of the third moving component 13; the laser head 2 is connected to the output end of the rotating component 14; the detection module 3 is connected to the output end of the third moving component 13 for detecting the welding point to be welded; the moving module 1 and the detection module 3 are electrically connected to the controller; wherein, the moving directions of the first moving component 11, the second moving component 12, and the third moving component 13 are perpendicular to each other in pairs, and the rotating plane of the moving module 1 is perpendicular to the moving direction of the first moving component 11.

[0036] In this embodiment, the laser welding device 100 is composed of a moving module 1, a laser head 2, a detection module 3 and a controller. When welding a workpiece, the detection module 3 detects the position information of the welding point to be welded on the workpiece, and then transmits the collected position information to the controller. The controller controls the translation module to drive the laser head 2 to move according to the position information, so that the focus of the emitted laser falls on the welding point to be welded, thereby improving the adjustment accuracy of the laser welding device 100, and further improving the accuracy and quality of laser welding. The moving module 1 is composed of a first moving component 11, a second moving component 12, a third moving component 13 and a rotating component 14. The moving directions of the first moving component 11, the second moving component 12 and the third moving component 13 are perpendicular to each other in pairs, so that the laser head 2 obtains a three-dimensional moving space, and the laser head 2 can reach any position in this moving space. In this way, the laser head 2 can be applied to a variety of workpieces to be processed with different models. The rotating component 14 is used to adjust the emission direction of the laser head 2. In this way, the laser head 2 meets various welding requirements such as flat welding and fillet welding, and improves the applicable scenarios of the laser welding device 100.

[0037] Optionally, with the workpiece to be processed as a reference, the moving directions of the first moving component 11, the second moving component 12 and the third moving component 13 can be the width direction, the length direction and the height direction respectively. No specific limitation is made here. It can be understood that the first moving component 11 and the third moving component 13 are used to drive the laser head 2 to align with the welding position to be welded on the workpiece to be processed, and the second moving component 12 is used to drive the laser head 2 to approach or move away from the workpiece to be processed, so that the focus of the laser emitted by the laser head 2 accurately falls on the welding point to be welded.

[0038] As Figure 1 and Figure 2 As shown, in an embodiment of the present utility model, the first moving component 11 includes a first driving member 111, a first slide rail 112 and a first mounting plate 113. The first driving member 111 is connected to the first slide rail 112. The first mounting plate 113 is connected to the first slide rail 112 and is connected to the output end of the first driving member 111. The second moving component 12 is connected to the first mounting plate 113. The first mounting plate 113 is provided with a first sensing piece 1131, and the first slide rail 112 is provided with a first sensor 1121 corresponding to the first sensing piece 1131. The first sensor 1121 is used to detect the position of the first mounting plate 113. The first driving member 111 and the first sensor 1121 are electrically connected to the controller.

[0039] In this embodiment, a first sensor 1121 is provided on the first slide rail 112. The first sensor 1121 is detachably mounted on the first slide rail 112. The first mounting plate 113 is provided with a first induction piece 1131. Multiple first induction pieces 1131 can be provided. The multiple first sensors 1121 are spaced apart on the first slide rail 112. When the first induction piece 1131 reaches the position of the first sensor 1121, the first sensor 1121 is triggered, and the position information of the first mounting plate 113 is detected, and then the position information of the laser head 2 is obtained. The first sensor 1121 is electrically connected to the controller, and the controller controls whether the first driving member 111 operates based on this.

[0040] Optionally, the first sensor 1121 can be a non-contact sensor such as a photoelectric sensor or an infrared sensor, and the first driving member 111 can be an electric cylinder or a cylinder, etc., which are not specifically limited herein.

[0041] It can be understood that the first sensor 1121 can be provided at both ends of the first slide rail 112. When the first sensor 1121 is triggered by the first induction piece 1131, the controller controls the first driving member 111 to stop operating, thereby limiting the operating stroke of the first mounting plate 113. When the laser welding device 100 performs circumferential welding on the workpiece to be processed, the position of the workpiece to be processed is fixed, and only rotated by the rotating device. At this time, the first slide rail 112 can be provided with the first induction piece 1131 corresponding to the detection device and the laser head 2 respectively. When the first induction piece 1131 triggers one of the first induction pieces 1131, the first driving member 111 stops operating, and the detection device aligns with the workpiece in the moving direction of the first moving assembly 11 to obtain the position information of the welding point to be detected. When the first induction piece 1131 triggers the other first sensor 1121, the laser head 2 aligns with the workpiece in the moving direction of the first moving assembly 11, so as to facilitate laser welding.

[0042] As Figure 1 and Figure 2 shown, in an embodiment of the present invention, the second moving assembly 12 includes a second driving member 121, a second slide rail 122 and a mounting frame 123. The second slide rail 122 is connected to the first mounting plate 113. The second driving member 121 is connected to the second slide rail 122. The mounting frame 123 is connected to the second slide rail 122 and is connected to the output end of the second driving member 121. The third moving assembly 13 is connected to the mounting frame 123. The mounting frame 123 is provided with a second induction piece 1234. The second slide rail 122 is provided with a second sensor 1221 corresponding to the second induction piece 1234. The second sensor 1221 is used to detect the position of the mounting frame 123. The second driving member 121 and the second sensor 1221 are electrically connected to the controller.

[0043] In this embodiment, a second sensor 1221 is provided on the second slide rail 122. The second sensor 1221 is detachably mounted on the second slide rail 122. The mounting bracket 123 is provided with a second sensing piece 1234. A plurality of second sensing pieces 1234 can be provided. The plurality of second sensors 1221 are spaced apart on the second slide rail 122. When the second sensing piece 1234 reaches the position of the second sensor 1221, the second sensor 1221 is triggered and the position information of the mounting bracket 123 is detected, thereby obtaining the position information of the laser head 2. The second sensor 1221 is electrically connected to the controller, and the controller controls whether the second driving member 121 operates based on this.

[0044] Optionally, the second sensor 1221 can be a non-contact sensor such as a photoelectric sensor or an infrared sensor, and the second driving member 121 can be an electric cylinder or a pneumatic cylinder, etc., which are not specifically limited here.

[0045] It can be understood that the second sensor 1221 can be provided at both ends of the second slide rail 122. When the second sensor 1221 is triggered by the first sensing piece 1131, the controller controls the second driving member 121 to stop operating, thereby limiting the operating stroke of the mounting bracket 123. When the laser welding device 100 performs circumferential welding on the workpiece to be processed, the position of the workpiece to be processed is fixed and only rotated by the rotating device. After the detection module 3 detects the positions of the workpiece to be processed and the welding points to be processed, the controller obtains the position information and controls the second driving member 121 to drive the laser head 2 to move along the second slide rail 122 to change the distance between the laser head 2 and the workpiece to be processed, so that the laser focus emitted by the laser head 2 always falls on the welding point to be processed of the workpiece to be processed.

[0046] Such as Figure 1 and Figure 2 As shown, in an embodiment of the present invention, the mounting bracket 123 includes a second mounting plate 1231, a support plate 1232 and a connecting plate 1233. The second mounting plate 1231 is connected to the second slide rail 122 and is connected to the output end of the second driving member 121. The connecting plate 1233 is vertically connected to the second mounting plate 1231. The third moving assembly 13 is connected to the connecting plate 1233. The support plate 1232 has a first surface and a second surface connected at an angle. The first surface and the second surface are respectively connected to the second mounting plate 1231 and the connecting plate 1233.

[0047] In this embodiment, the mounting bracket 123 is composed of a second mounting plate 1231, a support plate 1232 and a connecting plate 1233. The second mounting plate 1231 serves as a supporting plate body for supporting the support plate 1232, the connecting plate 1233 and the third moving component 13 connected to the connecting plate 1233. The second mounting plate 1231 is arranged in parallel with the second slide rail 122 to increase the contact area and reduce the pressure on the second slide rail 122. The connecting plate 1233 is perpendicularly connected to the second mounting plate 1231, so that the third moving component 13 and the second moving component 12 are perpendicularly arranged. The support plate 1232 has an adjacent first surface and a second surface. The second mounting plate 1231 and the connecting plate 1233 are respectively connected to the first surface and the second surface. The support plate 1232 supports the connecting plate 1233 to ensure the firmness of the connection between the connecting plate 1233 and the second mounting plate 1231 and the smoothness of the operation of the third moving component 13.

[0048] Optionally, the cross-section of the support plate 1232 can be in the shape of a right trapezoid or a rectangle. The first surface and the second surface respectively correspond to two adjacent right-angled sides. The support plate 1232 can also be provided with through holes to reduce its own weight, which is not specifically limited here.

[0049] As Figure 1 and Figure 2 shown, in an embodiment of the present utility model, the third moving component 13 includes a third driving member 131, a third slide rail 132 and a third mounting plate 133. The third slide rail 132 is connected to the connecting plate 1233. The third driving member 131 is connected to the third slide rail 132. The third mounting plate 133 is connected to the third slide rail 132 and is connected to the output end of the third driving member 131. The rotating component 14 is connected to the third mounting plate 133. The third mounting plate 133 is provided with a third sensing piece 1331. The third slide rail 132 is provided with a third sensor 1321 corresponding to the third sensing piece 1331. The third sensor 1321 is used to detect the position of the third mounting plate 133. The third driving member 131 and the third sensor 1321 are electrically connected to the controller.

[0050] In this embodiment, the third slide rail 132 is provided with a third sensor 1321. The third sensor 1321 is detachably mounted on the third slide rail 132. The third mounting plate 133 is provided with a third sensing piece 1331. Multiple third sensing pieces 1331 can be provided. Multiple third sensors 1321 are spaced on the third slide rail 132. When the third sensing piece 1331 reaches the position of the third sensor 1321, the third sensor 1321 is triggered and detects the position information of the third mounting plate 133, and then obtains the position information of the laser head 2. The third sensor 1321 is electrically connected to the controller, and the controller controls whether the third driving member 131 operates based on this.

[0051] Optionally, the third sensor 1321 may be a non-contact sensor such as a photoelectric sensor or an infrared sensor, and the third driving member 131 may be an electric cylinder or a pneumatic cylinder, etc., which are not specifically limited here.

[0052] It is understandable that the first sensors 1121 can be set at both ends of the first slide rail 112. When the first sensor 1121 is triggered by the first sensor plate 1131, the controller controls the first drive member 111 to stop running, thereby limiting the running stroke of the first mounting plate 113. When the laser welding device 100 performs circumferential welding on a workpiece to be processed, the position of the workpiece to be processed is fixed and is rotated only by the rotating device. At this time, the third slide rail 132 can be provided with third sensor plates 1331 corresponding to the detection device and the laser head 2 respectively. When the third sensor plates 1331 trigger one of the third sensor plates 1331, the third drive member 131 stops running, and the detection device aligns with the workpiece in the moving direction of the third movable component 13 to obtain position information of the weld point. When the third sensor plate 1331 triggers the other third sensor plate 1331, the laser head 2 aligns with the workpiece in the moving direction of the first movable component 11 to facilitate laser welding.

[0053] like Figures 2 to 4 As shown, in one embodiment of the present invention, the rotating assembly 14 includes an installation box 141, a turntable 142 and a knob 143. The installation box 141 is connected to the output end of the third moving assembly 13, and the turntable 142 is arranged on the side of the installation box 141 facing away from the third moving assembly 13. The laser head 2 is connected to the turntable 142, and the knob 143 is rotatably connected to the installation box 141. The knob 143 is used to drive the turntable 142 to drive the laser head 2 to rotate.

[0054] In this embodiment, the rotating assembly 14 consists of a mounting box 141, a turntable 142, and a knob 143. The turntable 142 is rotatably connected to the mounting box 141, and the laser head 2 is connected to the turntable 142. Rotating the turntable 142 can change the emission angle of the laser light emitted by the laser head 2, thereby achieving different welding angles on the workpiece and meeting different welding requirements. The knob 143 is rotatably connected to the mounting box 141 and is connected to the turntable 142 via a worm gear structure. Manually turning the knob 143 drives the turntable 142 to rotate, adjusting the emission direction of the laser head 2 to a specified direction.

[0055] Optionally, the knob 143 is disposed on a side of the mounting box 141 facing away from the direction of emission of the laser head 2 to prevent other mechanisms of the laser welding apparatus 100 from blocking the knob 143 and facilitate manual adjustment of the knob 143. It will be appreciated that the turntable 142 can be driven by a motor, and the adjustment accuracy of the turntable 142 by the knob 143 can be varied by changing the speed ratio of the worm gear, which is not specifically limited herein.

[0056] like Figure 2 andFigure 4 As shown in Figure 4 , in an embodiment of the present utility model, the mounting box 141 is provided with a scale disk 144, and the scale disk 144 is arranged around the turntable 142; and / or, the knob 143 is provided with scales, and the scales are arranged along the circumferential direction of the knob 143.

[0057] In this embodiment, the scale disk 144 is arranged around the turntable 142 on the surface of the mounting box 141, so as to facilitate real-time observation of whether the rotation angle of the laser head 2 is in place. Scales can be set on the knob 143 or the mounting box 141, so as to more precisely adjust the rotation angle of the laser head 2. It can be understood that a pointer is provided on the mounting box 141 corresponding to the scale disk 144, and pointers are also provided on the knob 143 or the mounting box 141 corresponding to the scales.

[0058] As Figure 1 and Figure 4 As shown in Figure 4 , in an embodiment of the present utility model, the detection module 3 includes a CCD detection component 31 and a distance measuring sensor 32. The CCD detection component 31 is connected to the side of the mounting box 141 facing away from the first moving component 11, and the distance measuring sensor 32 is connected to the mounting box 141 through a connecting rod 321, and the extending direction of the connecting rod 321 is the same as the setting direction of the CCD detection component 31.

[0059] In this embodiment, the detection module 3 is composed of a CCD detection component 31 and a distance measuring sensor 32. The CCD detection component 31 is used to detect the welding points of the workpiece, so as to facilitate the laser head 2 to align with the welding points. The distance measuring sensor 32 is used to detect the distance between the welding points of the workpiece and the laser head 2, so as to facilitate the focus of the laser emitted by the laser head 2 to fall on the welding potential. Optionally, the CCD detection component 31 includes a connecting piece, a CCD camera 311 and an annular lamp 312. The CCD camera 311 and the annular lamp 312 are connected to the mounting box 141 through the connecting piece. The CCD camera 311 and the annular lamp 312 are arranged at intervals on the connecting piece, and the annular lamp 312 is arranged at the output end of the CCD camera 311 to provide a good shooting environment for the CCD camera 311. The distance measuring sensor 32 is connected to the side of the mounting box 141 through the connecting rod 321 to avoid the laser head 2 or the CCD detection component 31 or other components from blocking the distance measuring sensor 32 and improve the detection accuracy of the distance measuring sensor 32.

[0060] As Figure 1 and Figure 5 As shown in Figure 5 , in an embodiment of the present utility model, the laser welding device 100 further includes a blowing component 4. The blowing component 4 is connected to the laser head 2, and the blowing component 4 is provided with a blowing port, and the blowing port is arranged towards the output end of the laser head 2.

[0061] In this embodiment, the blowing component 4 is used to blow protective gas onto the laser emitted by the laser head 2 to improve the stability of laser welding. Optionally, the blowing component 4 is arranged on the side of the laser head 2 facing away from the third moving component 13, reducing the installation difficulty of the blowing component 4 and improving the assembly convenience of the laser welding device 100.

[0062] Optionally, the protective gas can be nitrogen, argon, helium, etc., and no specific limitation is made here. The blowing component 4 includes a gas storage member, a mounting member 41, a gas valve 42, and a conduit 43. The gas storage member is used to store the protective gas. The output end of the gas storage member is connected to the inlet of the gas valve 42. The gas valve 42 is connected to one side of the laser head 2 through the mounting member 41. One end of the conduit 43 is connected to the outlet of the gas valve 42, and the other end of the conduit 43 is provided with a blowing port to guide the protective gas to the output end of the laser head 2.

[0063] As Figure 6 shown, the present utility model also proposes a laser welding device 200. The laser welding device 200 includes a base 5, a fixing device 6, and a laser welding device 100. The specific structure of the laser welding device 100 refers to the above embodiment. Since this laser welding device adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one. Among them, the fixing device 6 is connected to the base 5. The fixing device 6 is used to fix the workpiece to be processed. The laser welding device 100 is correspondingly connected to the base 5 with respect to the fixing device 6.

[0064] In this embodiment, the fixing device 6 and the laser welding device 100 are arranged at intervals on the base 5. The fixing device 6 includes a rotating member and a fixing member. The rotating member is connected to the base, and the fixing member is connected to the output end of the rotating member. The fixing member is provided with a fixing groove, and the workpiece to be processed is arranged in the fixing groove. The rotating member is used to drive the fixing member to drive the workpiece to be processed to rotate. After the detection module 3 in the laser welding device 100 detects the welding point position of the workpiece to be processed, the controller controls the moving module 1 to drive the laser head 2 to move according to the position information, so that the laser head 2 is aligned with the welding point position of the workpiece to be processed. Then the rotating member drives the fixing member to drive the workpiece to be processed to rotate. In this way, the laser head 2 performs circumferential welding on the workpiece to be processed. During the welding process, the controller controls the moving module 1 to adjust the position of the laser head 2 so that the focus of the laser emitted by the laser head 2 always falls on the welding point position to achieve the best welding effect. It can be understood that the moving directions of the first moving component 11 and the second moving component 12 are parallel to the installation surface of the base 5, and the moving direction of the fixing device 6 and the third moving component 13 is perpendicular to the installation surface of the base 5.

[0065] The above are only exemplary embodiments of the present utility model, and do not thus limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A laser welding device for welding workpieces, characterized in that, The laser welding device includes: A moving module, which includes a first moving component, a second moving component, a third moving component and a rotating component. The second moving component is connected to the output end of the first moving component; the output end of the third moving component is connected to the second moving component, and the rotating component is connected to the output end of the third moving component; the first moving component includes a first driving member, a first slide rail and a first mounting plate. The first driving member is connected to the first slide rail. The first mounting plate is provided with a first sensing piece, and the first slide rail is provided with a first sensor corresponding to the first sensing piece. The first sensor is used to detect the position of the first mounting plate. The second moving component includes a second driving member, a second slide rail and a mounting frame. The second slide rail is connected to the first mounting plate. The mounting frame is provided with a second sensing piece, and the second slide rail is provided with a second sensor corresponding to the second sensing piece. The second sensor is used to detect the position of the mounting frame; the third moving component includes a third driving member, a third slide rail and a third mounting plate. The third driving member is connected to the mounting frame. The third mounting plate is provided with a third sensing piece, and the third slide rail is provided with a third sensor corresponding to the third sensing piece. The third sensor is used to detect the position of the third mounting plate; A laser head, which is connected to the output end of the rotating component; A detection module, which is connected to the output end of the third moving component and is used to detect the welding point to be welded; and A controller, to which the moving module and the detection module are electrically connected; Wherein, the first driving member and the first sensor, the second driving member and the second sensor, and the third driving member and the third sensor are electrically connected to the controller; the moving directions of the first moving component, the second moving component and the third moving component are perpendicular to each other in pairs, and the rotating plane of the moving module is perpendicular to the moving direction of the first moving component.

2. The laser welding device according to claim 1, characterized in that, The first mounting plate is connected to the first slide rail and is connected to the output end of the first driving member, and the second moving component is connected to the first mounting plate.

3. The laser welding device according to claim 2, wherein, The second driving member is connected to the second slide rail, the mounting frame is connected to the second slide rail and is connected to the output end of the second driving member, and the third moving component is connected to the mounting frame.

4. The laser welding device according to claim 3, characterized in that, The mounting frame includes a second mounting plate, a support plate and a connecting plate. The second mounting plate is connected to the second slide rail and is connected to the output end of the second driving member. The connecting plate is perpendicularly connected to the second mounting plate. The third moving component is connected to the connecting plate. The support plate has a first surface and a second surface that are connected at an angle. The first surface and the second surface are respectively connected to the second mounting plate and the connecting plate.

5. The laser welding device according to claim 4, characterized in that, The third slide rail is connected to the connecting plate, the third driving member is connected to the third slide rail, the third mounting plate is connected to the third slide rail and is connected to the output end of the third driving member, and the rotating component is connected to the third mounting plate.

6. The laser welding device according to any one of claims 1 to 5, characterized in that, The rotating assembly includes an installation box, a turntable and a knob. The installation box is connected to the output end of the third moving assembly. The turntable is arranged on the side of the installation box facing away from the third moving assembly. The laser head is connected to the turntable. The knob is rotatably connected to the installation box, and the knob is used to drive the turntable to drive the laser head to rotate.

7. The laser welding device according to claim 6, characterized in that, The installation box is provided with a scale disk, and the scale disk is arranged around the turntable; And / or, the knob is provided with scales, and the scales are arranged along the circumferential direction of the knob.

8. The laser welding device according to claim 6, characterized in that, The detection module includes a CCD detection component and a ranging sensor. The CCD detection component is connected to the side of the installation box facing away from the first moving assembly. The ranging sensor is connected to the installation box through a connecting rod, and the extending direction of the connecting rod is consistent with the setting direction of the CCD detection component.

9. The laser welding device according to claim 6, characterized in that, The laser welding device further includes a blowing component. The blowing component is connected to the laser head. The blowing component is provided with a blowing port, and the blowing port is arranged towards the output end of the laser head.

10. A laser welding device, characterized in that, The laser welding equipment includes a base, a fixing device and the laser welding device according to any one of claims 1 to 9. The fixing device is connected to the base. The fixing device is used to fix the workpiece to be processed, and the laser welding device is correspondingly connected to the base with respect to the fixing device.

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