Laser welding equipment and method

Abstract

The embodiments of the present application belong to the field of automated laser welding technology and relate to a laser welding device and method. The laser welding device includes: a positioning device and a welding device; the positioning device includes a first positioning mechanism and a second positioning mechanism, the second positioning mechanism is arranged on the first positioning mechanism, the first positioning mechanism is used to place the first workpiece and position the first workpiece in the first direction and the second direction, the second positioning mechanism moves and forms a placement groove with the first workpiece, the placement groove is used to place the second workpiece and position the second workpiece in the first direction, the second positioning mechanism is used to position the first workpiece and the second workpiece in the third direction so that the second workpiece is tightly connected to the first workpiece; the welding device is used to weld the connection between the first workpiece and the second workpiece. The present application makes the welded product less deformed, the positioning is precise, and the welding quality is high.

Description

Technical Field

[0001] The present application relates to the technical field of automated laser welding, and more specifically, to a laser welding device and method. Background Art

[0002] At present, arc welding is mostly used to weld two large workpieces together. Arc welding generates large thermal stress, but when two smaller workpieces need to be welded together, continuing to use arc welding will cause large deformation of the finished product after welding. In addition, two positioning devices are mostly used to position the two workpieces respectively, and then a moving device is used to combine the two workpieces after positioning. This positioning method is prone to inaccurate positioning between the two workpieces, which in turn leads to deviations when they are later installed with other components, making installation difficult. The welded product needs additional correction work, which increases labor costs and production cycles. At the same time, due to the small size of the workpiece, when the workpiece is positioned, the space left for the arc welding gun head to enter the welding area is narrow, which can easily cause defects in poor welding quality. Summary of the Invention

[0003] The technical problem to be solved by the embodiments of the present application is that, in response to the above-mentioned defects of the prior art, a laser welding device and method are provided, which aims to solve the problems in the prior art of welding smaller workpieces, such as large deformation of the finished welded product, narrow welding space and inaccurate positioning, which lead to poor welding quality, deviations when later installed in conjunction with other components, difficulty in installation, and the need for additional correction work on the finished welded product, which increases labor costs and production cycles.

[0004] In order to solve the above technical problems, the embodiment of the present application provides a laser welding device, which adopts the following technical solutions:

[0005] A laser welding device comprises: a positioning device and a welding device; the positioning device comprises a first positioning mechanism and a second positioning mechanism, the second positioning mechanism is arranged on the first positioning mechanism, the first positioning mechanism is used to place a first workpiece and position the first workpiece in a first direction and a second direction, the second positioning mechanism moves and forms a placement groove with the first workpiece, the placement groove is used to place a second workpiece and position the second workpiece in the first direction, the second positioning mechanism is used to position the first workpiece and the second workpiece in a third direction so that the second workpiece is tightly connected to the first workpiece; the welding device is used to weld the connection between the first workpiece and the second workpiece.

[0006] Furthermore, the first positioning mechanism includes a mounting seat, the second positioning mechanism is arranged on the mounting seat, the first workpiece is placed on the surface of the mounting seat, one end of the mounting seat is provided with a first telescopic module that performs telescopic movement toward the first workpiece, and the two ends of the first workpiece are respectively abutted against the mounting seat and the first telescopic module to position the first direction of the first workpiece; one side of the mounting seat is provided with a second telescopic module that performs telescopic movement toward the first workpiece, and the two sides of the first workpiece are respectively abutted against the mounting seat and the second telescopic module to position the second direction of the first workpiece.

[0007] Furthermore, a first guide rail is provided on the lower surface of the mounting seat, a first slider is slidably provided on the first guide rail, and the first slider is connected to the second telescopic module; the second telescopic module includes a first cylinder and a sliding plate, the middle portion of the sliding plate is connected to the first slider, the first cylinder is connected to the side wall of the sliding plate and drives the sliding plate to perform telescopic movement toward the first workpiece, a fixed block is provided on the sliding plate, the fixed block is connected to one end of the first connecting rod, a first abutting block is slidably provided on the other end of the first connecting rod, a first elastic member is sleeved on the first connecting rod, the two ends of the first elastic member abut against the fixed block and the first abutting block respectively, the first abutting block abuts against one side of the first workpiece with one end away from the first elastic member, and the other side of the first workpiece abuts against the mounting seat to position the second direction of the first workpiece.

[0008] Furthermore, the second positioning mechanism includes a first clamping module provided on the first positioning mechanism, and the first clamping module performs a tightening movement in the direction of the first workpiece to form the placement groove with the first workpiece to position the first direction of the second workpiece; the second positioning mechanism also includes a second clamping module provided on the first positioning mechanism and passing through the end face of the first positioning mechanism, and the second clamping module tightens in the direction of the second workpiece to position the first workpiece and the second workpiece in a third direction.

[0009] Furthermore, the first clamping module includes a clamping jaw, and the movable end of the clamping jaw is provided with a clamping block on the side where the first workpiece is placed; when the movable end of the clamping jaw is tightened, the two clamping blocks are symmetrically arranged and arranged opposite to the first workpiece to form the placement groove to position the first direction of the second workpiece; the second clamping module includes a second cylinder, and the movable end of the second cylinder is provided with a pressure plate, and the second cylinder drives the pressure plate to rotate and telescopically move toward the second workpiece to position the first and second workpieces in the third direction.

[0010] Furthermore, the laser welding equipment also includes a loading device; the loading device includes a loading bracket, the loading bracket is provided with a material receiving mechanism, the material receiving mechanism includes a material receiving plate and a second sensor; the loading bracket is also provided with a linear module, the linear module is spaced apart from the material receiving mechanism, a third cylinder is slidably provided on the linear module, the linear module drives the third cylinder to perform telescopic movement toward the positioning device, the movable end of the third cylinder is provided with a suction mechanism, the third cylinder drives the suction mechanism to perform telescopic movement toward the material receiving mechanism or the positioning device to absorb, transport and load the second workpiece.

[0011] Furthermore, the laser welding equipment also includes a feeding device; the feeding device includes a feeding bracket, the feeding bracket is provided with a vibrating plate, a linear vibrator and a track, the vibrating plate is provided with a spiral material channel that is inclined upward to transport the second workpiece, the track is provided on the linear vibrator, and one end of the track is connected to the material channel of the vibrating plate to transport the second workpiece.

[0012] Furthermore, the laser welding equipment also includes a rotating device; the rotating device includes a rotating bracket, a divider is provided on the rotating bracket, a turntable is provided on the flange of the divider, and a first workpiece loading station, a second workpiece loading station and a welding station are sequentially provided along the rotation direction of the turntable; there are multiple positioning devices, and multiple positioning devices are equidistantly arranged on the turntable and correspond to the first workpiece loading station, the second workpiece loading station and the welding station; the welding device is spaced apart from the turntable and matched with the welding station.

[0013] In order to solve the above technical problems, the embodiment of the present application further provides a laser welding method, which adopts the following technical solution:

[0014] A laser welding method, comprising the following steps:

[0015] The positioning device is located at the first workpiece loading station, and the first workpiece is placed on the first positioning mechanism of the positioning device;

[0016] The first positioning mechanism positions the first workpiece in a first direction and a second direction;

[0017] The second positioning mechanism of the positioning device moves and forms a placement groove for placing the second workpiece with the first workpiece;

[0018] Placing the second workpiece in the placement slot to position the second workpiece in a first direction, and the second positioning mechanism positions the first workpiece and the second workpiece in a third direction;

[0019] The second positioning mechanism moves and no longer forms a placement groove with the first workpiece;

[0020] The laser emitted by the welding device acts on the connection between the first workpiece and the second workpiece.

[0021] Furthermore, after the step of moving the second positioning mechanism and forming a placement groove for placing the second workpiece with the first workpiece, the laser welding method further includes:

[0022] The second workpiece is placed in the feeding device, and the feeding device vibrates and sorts the second workpiece and then conveys it to the loading device;

[0023] After receiving the second workpiece, the loading device transports the second workpiece to the placement slot.

[0024] Compared with the prior art, the embodiments of the present application have the following main beneficial effects: on the one hand, the present application adopts a positioning device including a first positioning mechanism and a second positioning mechanism, and the second positioning mechanism is arranged on the first positioning mechanism, so that the present application realizes the positioning of the first workpiece and the second workpiece in multiple directions, and the second workpiece is tightly connected to the first workpiece. The present application not only ensures the accurate positioning of the first workpiece and the second workpiece, but also does not require the use of a moving device to combine the first workpiece and the second workpiece together; on the other hand, the welding device uses a laser to weld the first workpiece and the second workpiece. The thermal stress generated by laser welding is small. After the first workpiece and the second workpiece are welded together, the deformation of the welded product is small. Moreover, laser welding does not require the welding head to be close to the first workpiece and the second workpiece, and the first direction of the second workpiece is not blocked by the second positioning mechanism. The spatial area of ​​laser welding is large; therefore, the present application ensures that the deformation of the welded product is small, the positioning is accurate, and the welding quality is high, so that there is no deviation when it is installed with other components in the later stage, the installation is easy, and no additional correction work is required for the welded product, thereby reducing labor costs and production cycles. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the solution of the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

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

[0027] Figure 2 yes Figure 1 A top view of

[0028] Figure 3 is a schematic diagram of a positioning device in a laser welding device provided by an embodiment of the present invention;

[0029] Figure 4yes Figure 3 A top view of

[0030] Figure 5 yes Figure 4 Cross-sectional view at AA in the middle;

[0031] Figure 6 This is a schematic diagram of a mounting base, a first sensor, a first positioning plate, a second positioning plate, a first telescopic module, a second telescopic module, and a second positioning mechanism of a first positioning mechanism in a laser welding device provided by an embodiment of the present invention;

[0032] Figure 7 Schematic diagram of a feeding device in a laser welding device provided by an embodiment of the present invention;

[0033] Figure 8 Schematic diagram of a feeding device in a laser welding device provided by an embodiment of the present invention;

[0034] Figure 9 Schematic diagram of welding a first workpiece and a second workpiece together using a laser welding device provided by an embodiment of the present invention;

[0035] Figure 10 This is a flow chart of a laser welding method provided by an embodiment of the present invention.

[0036] Reference numerals:

[0037] 1000, positioning device; 1100, first positioning mechanism; 1110, mounting seat; 1111, mounting plate; 1112, first positioning plate; 1113, second positioning plate; 1114, second guide rail; 1115, second slider; 1116, positioning block; 1117, first guide rail; 1118, first slider; 1119, first sensor; 1120, first telescopic module; 1121, fourth cylinder; 1122, movable plate; 1123, second elastic member; 1124, second abutting block; 1130, second telescopic module; 1131, first cylinder; 1132, sliding plate; 1133, fixed block; 1134, first connecting rod; 1135, first abutting block; 1136, first elastic member; 1200, second positioning mechanism; 1210, first clamping module; 1211, clamping claw; 12 12. Clamping block; 1220. Second clamping module; 1221. Second cylinder; 1222. Press plate; 1230. Limit block; 1300. Placement slot; 2000. Welding device; 2100. Six-axis robot; 2200. Galvanometer welding head; 3000. Loading device; 3100. Loading bracket; 3200. Material receiving mechanism; 3210. Material receiving plate; 3220. Second sensor; 330 0. Linear module; 3400. Third cylinder; 3500. Suction mechanism; 3510. Fixed plate; 3520. Electromagnetic suction device; 4000. Feeding device; 4100. Feeding bracket; 4200. Vibrating plate; 4300. Linear vibrator; 4400. Track; 5000. Rotating device; 5100. Rotating bracket; 5200. Turntable; 100. First workpiece; 200. Second workpiece. DETAILED DESCRIPTION

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0039] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0040] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0041] The present application provides a laser welding device, such as Figures 1 to 6 As shown, the laser welding equipment includes: a positioning device 1000 and a welding device 2000, the positioning device 1000 includes a first positioning mechanism 1100 and a second positioning mechanism 1200, the second positioning mechanism 1200 is arranged on the first positioning mechanism 1100, the first positioning mechanism 1100 is used to place the first workpiece 100 and position the first workpiece 100 in the first direction and the second direction, the second positioning mechanism 1200 moves toward the first positioning mechanism 1100 and forms a placement groove 1300 with the first workpiece 100, the placement groove 1300 is used to place the second workpiece 200 and position the second workpiece 200 in the first direction, the second positioning mechanism 1200 is used to position the first workpiece 100 and the second workpiece 200 in the third direction, so that the second workpiece 200 is tightly connected to the first workpiece 100; the welding device 2000 is used to weld the connection between the first workpiece 100 and the second workpiece 200.

[0042] The working principle of a laser welding device provided in the present application is as follows: first, a first workpiece 100 is placed on a first positioning mechanism 1100; then, the first positioning mechanism 1100 is started to position the first workpiece 100 in a first direction and a second direction; then, the second positioning mechanism 1200 is started to move the second positioning mechanism 1200 toward the first positioning mechanism 1100, so that a placement groove 1300 for placing the second workpiece 200 is formed between the second positioning mechanism 1200 and the first workpiece 100; then, the second workpiece 200 is placed in the placement groove 1300 to position the second workpiece 200 in the first direction; then, the second positioning mechanism 1200 is started to move the second positioning mechanism 1200 toward the first positioning mechanism 1100, so that a placement groove 1300 for placing the second workpiece 200 is formed between the second positioning mechanism 1200 and the first workpiece 100; The second workpiece 200 is positioned so that the second workpiece 200 is tightly connected to the first workpiece 100; when the welding device 2000 is needed to weld the connection between the second workpiece 200 and the first workpiece 100, the second positioning mechanism 1200 is started again, and the second positioning mechanism 1200 moves in a direction away from the first positioning mechanism 1100, so that the second positioning mechanism 1200 no longer forms a placement groove 1300 with the first workpiece 100, so that the first direction of the second workpiece 200 is not blocked by the second positioning mechanism 1200, which facilitates the welding device 2000 to weld the connection between the second workpiece 200 and the first workpiece 100; finally, the welding device 2000 is started, and the laser emitted by the welding device 2000 acts on the connection between the first workpiece 100 and the second workpiece 200, so that the first workpiece 100 and the second workpiece 200 are welded together.

[0043] The technical effects of a laser welding device provided by the present application are as follows: on the one hand, the present application adopts a positioning device 1000 including a first positioning mechanism 1100 and a second positioning mechanism 1200, and the second positioning mechanism 1200 is arranged on the first positioning mechanism 1100, so that the present application realizes the positioning of the first workpiece 100 and the second workpiece 200 in multiple directions, and makes the second workpiece 200 tightly connected to the first workpiece 100. The present application ensures the accurate positioning of the first workpiece 100 and the second workpiece 200, and does not need to use a moving device to combine the first workpiece 100 and the second workpiece 200 together; on the other hand, the welding device 2000 uses laser When welding the first workpiece 100 and the second workpiece 200, the thermal stress generated by laser welding is small. After the first workpiece 100 and the second workpiece 200 are welded together, the deformation of the welded product is small. Moreover, laser welding does not require the welding head to be close to the first workpiece 100 and the second workpiece 200, and the first direction of the second workpiece 200 is not blocked by the second positioning mechanism 1200, and the spatial area of ​​laser welding is large. Therefore, the present application ensures that the deformation of the welded product is small, the positioning is accurate, and the welding quality is high, so that there will be no deviation when it is installed with other components in the later stage, the installation is easy, and no additional correction work is required for the welded product, thereby reducing labor costs and production cycles.

[0044] In the embodiment of the present application, the welding device 2000 includes a six-axis robot 2100 and a galvanometer welding head 2200, which is disposed at the end of the robotic arm of the six-axis robot 2100. The six-axis robot 2100 has high transmission precision and stable operation, and can drive the galvanometer welding head 2200 to move in multiple directions. The galvanometer welding head 2200 can achieve time-sharing laser output to weld the first workpiece 100 and the second workpiece 200 without moving within a limited rectangular field of view, greatly saving the time required for the six-axis robot 2100 to drive the galvanometer welding head 2200 to move.

[0045] In the embodiment of the present application, the first direction is the X-axis direction, the second direction is the Y-axis direction, and the third direction is the Z-axis direction.

[0046] Furthermore, the first positioning mechanism 1100 includes a mounting seat 1110, the second positioning mechanism 1200 is arranged on the mounting seat 1110, the first workpiece 100 is placed on the surface of the mounting seat 1110, and one end of the mounting seat 1110 is provided with a first telescopic module 1120 that performs telescopic movement toward the first workpiece 100, and the two ends of the first workpiece 100 are respectively abutted against the mounting seat 1110 and the first telescopic module 1120 to position the first direction of the first workpiece 100; one side of the mounting seat 1110 is provided with a second telescopic module 1130 that performs telescopic movement toward the first workpiece 100, and the two sides of the first workpiece 100 are respectively abutted against the mounting seat 1110 and the second telescopic module 1130 to position the second direction of the first workpiece 100. After the first workpiece 100 is placed on the mounting seat 1110, the first telescopic module 1120 is activated and moves toward one end (rear end) of the first workpiece 100, so that the one end (rear end) of the first workpiece 100 abuts against the mounting seat 1110 and the other end (front end) of the first workpiece 100 abuts against the first telescopic module 1120, thereby completing the positioning of the first workpiece 100 in the first direction. Then, the second telescopic module 1130 is activated and moves toward one side (left side) of the first workpiece 100, so that the one side (left side) of the first workpiece 100 abuts against the mounting seat 1110 and the other side (right side) of the first workpiece 100 abuts against the second telescopic module 1130, thereby completing the positioning of the first workpiece 100 in the second direction. Of course, the second telescopic module 1130 can also be activated first to complete the positioning of the first workpiece 100 in the second direction, and then the second telescopic module 1130 is activated to perform the positioning of the first workpiece 100 in the first direction. The present application positions the first workpiece 100 in both the first direction and the second direction, thereby ensuring accurate positioning of the first workpiece 100 and high quality subsequent welding. After welding is completed, no deviation occurs when it is installed in conjunction with other components.

[0047] It is understood that the surface of the mounting seat 1110 is provided with a mounting groove (not shown) for placing the first workpiece 100. In this embodiment, the mounting groove does not penetrate the front and rear ends and the left and right sides of the mounting seat 1110, so that the first workpiece 100 does not fall off the mounting seat 1110 under the action of the first telescopic module 1120 and the second telescopic module 1130, thereby causing the rear end of the first workpiece 100 and the left side of the rear end of the first workpiece 100 to abut the inner wall of the mounting groove. Preferably, the mounting seat 1110 is provided with multiple mounting grooves, and multiple first workpieces 100 are respectively arranged in the multiple mounting grooves, so that multiple first workpieces 100 are positioned simultaneously.

[0048] In a preferred embodiment, the first positioning mechanism 1100 also includes a mounting plate 1111, a first positioning plate 1112 and a second positioning plate 1113, the first positioning plate 1112, the mounting seat 1110 and the second positioning plate 1113 are sequentially arranged on the mounting plate 1111, and the first telescopic module 1120 is arranged on the first positioning plate 1112, the first positioning plate 1112, the mounting seat 1110 and the second positioning plate 1113 are all provided with mounting grooves (not shown), and the first workpiece 100 is placed in multiple mounting grooves to prevent the first workpiece 100 from falling off. It can be understood that the mounting grooves on the first positioning plate 1112 and the mounting seat 1110 both pass through the front and rear ends of the first positioning plate 1112 and the mounting seat 1110, and the mounting grooves on the second positioning plate 1113 do not pass through the front and rear ends and the left and right sides of the second positioning plate 1113, so that the rear end of the first workpiece 100 and the left side of the rear end of the first workpiece 100 abut against the inner wall of the mounting groove on the second positioning plate 1113.

[0049] In a preferred embodiment, a second guide rail 1114 is provided on the mounting plate 1111, and a second slider 1115 is provided at the bottom of the first positioning plate 1112 and the second positioning plate 1113. The second slider 1115 is slidably arranged on the second guide rail 1114, so that the present application can be applied to first workpieces 100 of different lengths; further, a plurality of positioning blocks 1116 are provided on the second guide rail 1114, and the positioning blocks 1116 abut against the first positioning plate 1112 and the second positioning plate 1113 to prevent the first positioning plate 1112 and the second positioning plate 1113 from shifting during use.

[0050] Furthermore, a first sensor 1119 is provided on the mounting seat 1110, and the first sensor 1119 is used to sense the first workpiece 100. When the first sensor 1119 senses the first workpiece 100, the first telescopic module 1120 and / or the second telescopic module 1130 is activated to prevent the first telescopic module 1120 and / or the second telescopic module 1130 from doing useless work.

[0051] Furthermore, a first guide rail 1117 is provided on the lower surface of the mounting seat 1110, and a first slider 1118 is slidably provided on the first guide rail 1117, and the first slider 1118 is connected to the second telescopic module 1130; the second telescopic module 1130 includes a first cylinder 1131 and a sliding plate 1132, the middle portion of the sliding plate 1132 is connected to the first slider 1118, the first cylinder 1131 is connected to the side wall of the sliding plate 1132 and drives the sliding plate 1132 to telescopically move toward the first workpiece 100, and a fixed block is provided on the sliding plate 1132 1133, the fixed block 1133 is connected to one end of the first connecting rod 1134, and a first abutting block 1135 is slidably provided on the other end of the first connecting rod 1134, and a first elastic member 1136 is sleeved on the first connecting rod 1134, and the two ends of the first elastic member 1136 are respectively abutted against the fixed block 1133 and the first abutting block 1135, and one end of the first abutting block 1135 away from the first elastic member 1136 abuts against one side of the first workpiece 100, and the other side of the first workpiece 100 abuts against the mounting seat 1110 to position the second direction of the first workpiece 100. The first cylinder 1131 is started, and the first cylinder 1131 drives the sliding plate 1132 to move toward the first workpiece 100, thereby driving the fixed block 1133, the first connecting rod 1134, the first elastic member 1136 and the first abutting block 1135 to move toward the first workpiece 100; when the first abutting block 1135 abuts against the first workpiece 100 and the first cylinder 1131 still drives the sliding plate 1132 to move toward the first workpiece 100, under the action of the force, the first abutting block 1135 moves toward the first workpiece 100 on the first connecting rod 1134. It moves toward the fixed block 1133, causing the first elastic member 1136 to be squeezed and deformed. At the same time, under the action of elastic potential energy, the end of the first elastic member 1136 presses against the first abutting block 1135, so that the first abutting block 1135 is tightly fitted with one side of the first workpiece 100 and the other side of the first workpiece 100 is abutted against the mounting seat 1110. The first workpiece 100 is accurately positioned without damaging it, so that the subsequent welding quality is high, and there is no deviation when it is installed in conjunction with other components after welding is completed.

[0052] In a preferred embodiment, an extension portion is provided at the end of the first abutment block 1135 on the side away from the fixed block 1133. When the shape of the first workpiece 100 is irregular, such as a guide rail with a hollow interior, the extension portion abuts against the interior of the guide rail to further ensure accurate positioning.

[0053] In a preferred embodiment, a plurality of fixed blocks 1133 are arranged at intervals on the sliding plate, each of the fixed blocks 1133 is connected to one end of a first connecting rod 1134, a first abutting block 1135 is slidably provided on the other end of each first connecting rod 1134, a first elastic member 1136 is sleeved on each first connecting rod 1134, both ends of each first elastic member 1136 are respectively abutted against the fixed block 1133 and the first abutting block 1135, one end of each first abutting block 1135 away from the first elastic member 1136 is abutted against one side of the first workpiece 100, and the other side of the first workpiece 100 is abutted against the mounting seat 1110 to position the second direction of the first workpiece 100; this embodiment realizes the positioning of multiple first workpieces at one time, thereby increasing work efficiency.

[0054] Furthermore, the first telescopic module 1120 includes a fourth cylinder 1121, a movable plate 1122, a second elastic member 1123 and a second abutment block 1124. The fourth cylinder 1121 is connected to the side wall of the movable plate 1122 and drives the movable plate 1122 to telescopically move toward the first workpiece 100. One end of the first elastic member 1136 is connected to the movable plate 1122, and the other end of the second elastic member 1123 is connected to the second abutment block 1124. The end of the second abutment block 1124 away from the second elastic member 1123 abuts against one end of the first workpiece 100, and the other end of the first workpiece 100 abuts against the mounting seat 1110 to position the first direction of the first workpiece 100. The fourth cylinder 1121 is started, and the fourth cylinder 1121 drives the movable plate 1122 to move toward the first workpiece 100, thereby driving the movable plate 1122, the second elastic member 1123 and the second abutment block 1124 to move toward the first workpiece 100; when the second abutment block 1124 abuts against the first workpiece 100 and the fourth cylinder 1121 still drives the movable plate 1122 to move toward the first workpiece 100, under the action of force, the second elastic member 1123 is squeezed and deformed, and at the same time, under the action of elastic potential energy, the end of the second elastic member 1123 presses against the second abutment block 1124, so that the second abutment block 1124 is tightly fitted with one end of the first workpiece 100 and the other end of the first workpiece 100 abuts against the mounting seat 1110, so that the first workpiece 100 is accurately positioned without damaging the first workpiece 100, so that the subsequent welding quality is high, and no deviation will occur when it is installed with other components after welding is completed.

[0055] In a preferred embodiment, the first telescopic module 1120 includes a fourth cylinder 1121, a movable plate 1122, a plurality of second elastic members 1123 and a plurality of second abutment blocks 1124, the second elastic members 1123 are arranged at intervals on the movable plate 1122, the other end of each second elastic member 1123 is connected to a second abutment block 1124, and the end of each second abutment block 1124 away from the second elastic member 1123 abuts against one end of the first workpiece 100, and the other end of the first workpiece 100 abuts against the mounting seat 1110 to position the first direction of the first workpiece 100; this embodiment realizes the positioning of multiple first workpieces at one time, thereby increasing work efficiency.

[0056] In a preferred embodiment, the fourth cylinder 1121 is disposed on the first positioning plate 1112 .

[0057] Furthermore, the second positioning mechanism 1200 includes a first clamping module 1210 provided on the first positioning mechanism 1100, and the first clamping module 1210 performs a tightening movement in the direction of the first workpiece 100 to form the placement groove 1300 with the first workpiece 100 to position the first direction of the second workpiece 200; the second positioning mechanism 1200 also includes a second clamping module 1220 provided on the first positioning mechanism 1100 and passing through the end face of the first positioning mechanism 1100, and the second clamping module 1220 tightens in the direction of the second workpiece 200 to position the first workpiece 100 and the second workpiece 200 in the third direction. The first clamping module 1210 is started, and the first clamping module 1210 is tightened toward the direction of the first workpiece 100, so that the first clamping module 1210 and the first workpiece 100 form the placement groove 1300, and the second workpiece 200 is placed in the placement groove 1300, thereby completing the positioning of the second workpiece 200 in the first direction; then the second clamping module 1220 is started, and the second clamping module 1220 is tightened toward the direction of the second workpiece 200, and at the same time, the second workpiece 200 is abutted against the first workpiece 100, thereby completing the positioning of the first workpiece 100 and the second workpiece 200 in the third direction. The present application positions the second workpiece 200 in the first direction and the first workpiece 100 and the second workpiece 200 in the third direction, thereby ensuring the accurate positioning of the first workpiece 100 and the second workpiece 200; when the welding device 2000 is needed to weld the connection between the second workpiece 200 and the first workpiece 100, the first clamping module 1210 is started again to open the first clamping module 1210 in the direction away from the first workpiece 100, and no longer forms the placement groove 1300 with the first workpiece 100, so that the first direction of the second workpiece 200 is not blocked by the first clamping module 1210, which facilitates the welding device 2000 to weld the connection between the second workpiece 200 and the first workpiece 100. Since the second clamping module 1220 always presses the second workpiece 200, the third direction positioning of the second workpiece 200 and the first workpiece 100 is maintained, thereby ensuring the high quality of subsequent welding, and no deviation will occur when it is installed in conjunction with other components after welding is completed.

[0058] Furthermore, the first clamping module 1210 includes a clamping jaw 1211, and the movable end of the clamping jaw 1211 is provided with a clamping block 1212 on the side where the first workpiece 100 is placed; the movable end of the clamping jaw 1211 is tightened, and the two clamping blocks 1212 are symmetrically arranged and arranged opposite to the first workpiece 100 to form the placement groove 1300 to position the first direction of the second workpiece 200; the second clamping module 1220 includes a second cylinder 1221, and the movable end of the second cylinder 1221 is provided with a pressure plate 1222, and the second cylinder 1221 drives the pressure plate 1222 to rotate and telescopically move toward the second workpiece 200 to position the first workpiece 100 and the second workpiece 200 in the third direction. The clamping jaw 1211 is activated, and the movable end of the clamping jaw 1211 is tightened toward the side where the first workpiece 100 is placed. After the movable end of the clamping jaw 1211 is tightened, the two clamping blocks 1212 are symmetrically arranged and arranged opposite to the first workpiece 100 to form a placement groove 1300; then, the second workpiece 200 is placed in the placement groove 1300. Under the action of the clamping blocks 1212 and the first workpiece 100, the second workpiece 200 does not shift, so as to position the second workpiece 200 in the first direction; then, the second cylinder 1221 is activated. The second cylinder 1221 drives the pressing plate 1222 to rotate, so that the pressing plate 1222 can enter the placement groove 1300 formed by the two clamping blocks 1212 and the first workpiece 100. Then, the second cylinder 1221 drives the pressing plate 1222 to shrink toward the second workpiece 200, so that the lower surface of the pressing plate 1222 abuts against the upper surface of the second workpiece 200, and the lower surface of the second workpiece 200 abuts against the upper surface of the first workpiece 100, so as to position the first workpiece 100 in the third direction of the second workpiece 200. The present application positions the second workpiece 200 in the first direction as well as the first workpiece 100 and the second workpiece 200 in the third direction, thereby ensuring accurate positioning of the first workpiece 100 and the second workpiece 200; when the welding device 2000 needs to weld the connection between the second workpiece 200 and the first workpiece 100, the clamping jaw 1211 is started again, and the clamping jaw 1211 opens in a direction away from the first workpiece 100, driving the clamping jaw 1211 at the movable end thereof to open in a direction away from the first workpiece 100, so that the clamping block 1212 no longer forms a placement groove 1300 with the first workpiece 100, so that the first direction of the second workpiece 200 is not blocked by the clamping block 1212, making it convenient for the welding device 2000 to weld the connection between the second workpiece 200 and the first workpiece 100, and because the pressure plate 1222 always presses the second workpiece 200, the third direction positioning of the second workpiece 200 and the first workpiece 100 is maintained, thereby ensuring high quality of subsequent welding, and no deviation occurs when the welding is completed and assembled with other components.

[0059] In a preferred embodiment, there are two first clamping modules 1210, which are respectively arranged on one side of the mounting seat 1110; there are two second clamping modules 1220, which are arranged at intervals on the mounting seat 1110 of the first positioning mechanism 1100, and the two ends of the pressure plate of each second clamping module 1220 can respectively position a second workpiece; this embodiment realizes the positioning of multiple second workpieces at one time, thereby increasing work efficiency.

[0060] In a preferred embodiment, the lower surface of the pressing plate 1222 matches the upper surface of the second workpiece 200 , thereby ensuring accurate positioning of the second workpiece 200 .

[0061] Furthermore, an extension portion is provided at one end of the opposite surfaces of the two clamping blocks 1212 to further limit the placement slot 1300 to position the second direction of the second workpiece 200 of the first workpiece 100, thereby increasing the positioning accuracy of the second workpiece 200.

[0062] Furthermore, a limit block 1230 is provided on the mounting seat 1110, and the limit block 1230 is spaced apart from the clamping block 1212, and the end of the limit block 1230 relative to the clamping block 1212 is away from the extension portion of the clamping block 1212, further limiting the placement groove 1300 to position the second direction of the second workpiece 200 of the first workpiece 100, thereby increasing the positioning accuracy of the second workpiece 200.

[0063] It is understandable that the number of the limiting blocks 1230 is consistent with the number of the second workpieces 200 .

[0064] Further, if Figure 7As shown, the laser welding equipment also includes a loading device 3000; the loading device 3000 includes a loading bracket 3100, and the loading bracket 3100 is provided with a material receiving mechanism 3200, and the material receiving mechanism 3200 includes a material receiving plate 3210 and a second sensor 3220; the loading bracket 3100 is also provided with a linear module 3300, and the linear module 3300 is spaced apart from the material receiving mechanism 3200, and a third cylinder 3400 is slidably provided on the linear module 3300, and the linear module 3300 drives the third cylinder 3400 to perform telescopic movement toward the positioning device 1000, and the movable end of the third cylinder 3400 is provided with a suction mechanism 3500, and the third cylinder 3400 drives the suction mechanism 3500 to perform telescopic movement toward the material receiving mechanism 3200 or the positioning device 1000 to absorb, transport and load the second workpiece 200. The receiving plate 3210 is used to receive the second workpiece 200. When the second sensor 3220 senses the second workpiece 200 located on the receiving plate 3210, the third cylinder 3400 is started again, and the third cylinder 3400 drives the suction mechanism 3500 to move vertically toward the receiving mechanism 3200 until the bottom of the suction mechanism 3500 abuts against the second workpiece 200; then, the suction mechanism 3500 is started, and the suction mechanism 3500 sucks the second workpiece 200. Immediately afterwards, the third cylinder 3400 drives the suction mechanism 3500 to move vertically away from the receiving mechanism 3200; then, the linear module 3300 is started, and the linear module 3300 drives the third cylinder 3400 to move horizontally toward the positioning device 1000, thereby driving the suction mechanism 3500 and the second workpiece 200 until they are adsorbed on the suction mechanism 3500. The second workpiece 200 is aligned with the placement slot 1300; then, the third cylinder 3400 is started, and the third cylinder 3400 drives the suction mechanism 3500 to move vertically toward the placement slot 1300 of the positioning device 1000 until the second workpiece 200 adsorbed on the suction mechanism 3500 is located in the placement slot 1300; then, the suction mechanism 3500 is closed, so that the second workpiece 200 is placed in the placement slot 1300; finally, the third cylinder 3400 is reset to drive the suction mechanism 3500 to move vertically away from the positioning device 1000, and the linear module 3300 is reset to drive the third cylinder 3400 and the suction mechanism 3500 to move horizontally away from the positioning device 1000. When the second sensor 3220 senses the next second workpiece 200, this motion trajectory is repeated to achieve uninterrupted loading and increase the degree of automation.

[0065] In a preferred embodiment, after the suction mechanism 3500 sucks the first second workpiece 200, the third cylinder 3400 drives the suction mechanism 3500 to move vertically away from the receiving mechanism 3200; then, the linear module 3300 is started, and the linear module 3300 drives the third cylinder 3400 to move horizontally toward the positioning device 1000, thereby driving the suction mechanism 3500 and the first second workpiece 200; then, the third cylinder 3400 is started, and the third cylinder 3400 drives the suction mechanism 3500 to move vertically toward the receiving mechanism 3200 until the bottom of the suction mechanism 3500 abuts against the second second workpiece 200, and then, the suction mechanism 3500 is started, and the suction mechanism 3500 sucks the second workpiece 200; the cycle is repeated, and the suction mechanism 3500 can suck multiple second workpieces 200 to meet the demand of loading multiple second workpieces 200 at the same time.

[0066] Furthermore, the material suction mechanism 3500 includes a fixed plate 3510 and at least one electromagnetic suction device 3520, the fixed plate 3510 is connected to the movable end of the third cylinder 3400, and the electromagnetic suction device 3520 is arranged on a side of the fixed plate 3510 away from the movable end of the third cylinder 3400; the third cylinder 3400 drives the material suction mechanism 3500 to move vertically toward the material receiving mechanism 3200 until the bottom of the electromagnetic suction device 3520 of the material suction mechanism 3500 abuts against the second workpiece 200, and then the electromagnetic suction device 3520 is energized to generate electromagnetic force and adsorb the second workpiece 200.

[0067] It is understandable that the lower surface of the electromagnetic suction device 3520 matches the upper surface of the second workpiece 200, ensuring accurate suction of the second workpiece 200.

[0068] Furthermore, the linear module 3300 includes a motor (not shown), a screw rod (not shown) and a nut (not shown), one end of the screw rod is connected to the motor, the nut is slid on the screw rod, and the third cylinder 3400 is connected to the nut; when the motor is started, the motor drives the screw rod to rotate clockwise or counterclockwise, causing the screw on the screw rod to move away from or adjacent to the positioning device 1000.

[0069] Further, if Figure 8As shown, the laser welding equipment also includes a feeding device 4000; the feeding device 4000 includes a feeding bracket 4100, and the feeding bracket 4100 is provided with a vibration plate 4200, a linear vibrator 4300 and a track 4400, and the vibration plate 4200 is provided with a spiral material channel that transports the second workpiece 200 upwardly and obliquely, and the track 4400 is provided on the linear vibrator 4300, and one end of the track 4400 is connected to the material channel of the vibration plate 4200 to transport the second workpiece 200. A large number of second workpieces 200 are manually placed on the vibration plate 4200, and the vibration plate 4200 is started to generate vibration, so that the second workpieces 200 vibrate and move upward in an orderly manner along the material channel of the vibration plate 4200 until the second workpieces 200 move to the junction of the material channel of the vibration plate 4200 and the track 4400, and the linear vibrator 4300 is started to generate vibration, driving the track 4400 to vibrate, so that the second workpieces 200 continue to move along the track 4400 in a vibrating and orderly manner, and the end of the track 4400 away from the vibration plate 4200 is connected to the material receiving plate 3210 of the material receiving mechanism 3200, thereby realizing the loading of the second workpiece 200; during use, the vibration plate 4200 and the linear vibrator 4300 continuously generate vibration, so that the second workpieces 200 are continuously transported to the material receiving plate 3210, thereby increasing the degree of automation.

[0070] Further, if Figure 1 and Figure 2As shown, the laser welding equipment also includes a rotating device 5000; the rotating device 5000 includes a rotating bracket 5100, a divider (not shown) is provided on the rotating bracket 5100, a turntable 5200 is provided on the flange of the divider, and a first workpiece loading station, a second workpiece loading station and a welding station are sequentially provided along the rotation direction of the turntable 5200; there are multiple positioning devices 1000, and multiple positioning devices 1000 are equidistantly arranged on the turntable 5200 and correspond to the first workpiece loading station, the second workpiece loading station and the welding station; the welding device 2000 is spaced apart from the turntable 5200 and matched with the welding station. First, a person is located at the first workpiece loading station and manually places the first workpiece 100 on the first positioning mechanism 1100; then, the divider drives the turntable 5200 to rotate at equal angles, so that the turntable 5200 rotates 120° each time, and the positioning device 1000 with the first workpiece 100 is rotated to the second workpiece loading station through the turntable 5200. At this time, the first positioning mechanism 1100 positions the first workpiece 100, and then, the second positioning mechanism 1200 moves and forms a placement groove 1300 with the first workpiece 100 for placing the second workpiece 200; then, the second workpiece 200 is placed in the placement groove 1300, and then, the second positioning mechanism 1200 positions the second workpiece 200 so that the second workpiece 200 is tightly connected to the first workpiece 100; then, the divider drives the turntable 5200 to rotate, thereby driving the positioning device 1000 that has positioned the first workpiece 100 and the second workpiece 200 to rotate. Turn to the welding station, at this time the second positioning mechanism 1200 moves and no longer forms the placement groove 1300; then, the welding device 2000 emits a laser and acts on the connection between the first workpiece 100 and the second workpiece 200, so that the first workpiece 100 and the second workpiece 200 are welded together; then, the first positioning mechanism 1100 and the second positioning mechanism 1200 no longer position the first workpiece 100 and the second workpiece 200; then, the divider drives the turntable 5200 to rotate, thereby driving the positioning device 1000 with the finished welding product placed thereon to rotate to the first workpiece loading station, manually remove the finished welding product from the positioning device 1000, and place the unwelded first workpiece 100 on the first positioning mechanism 1100 again; this cycle is repeated continuously, and the three groups of first workpieces 100 and second workpieces 200 are positioned, loaded and welded at the same time, with high welding efficiency and automatic welding of the first workpiece 100 and the second workpiece 200.

[0071] Furthermore, after the divider drives the turntable 5200 to rotate, thereby driving the positioning device 1000 that has positioned the first workpiece 100 and the second workpiece 200 to rotate to the welding station, the clamping jaw 1211 of the first clamping module 1210 in the second positioning mechanism 1200 opens in a direction away from the first workpiece 100, driving the clamping jaw 1211 at the movable end thereof to open in a direction away from the first workpiece 100, so that the clamping block 1212 no longer forms a placement groove 1300 with the first workpiece 100, thereby making the first direction of the second workpiece 200 not blocked by the clamping block 1212, thereby facilitating the welding device 2000 to weld the connection between the second workpiece 200 and the first workpiece 100.

[0072] In a preferred embodiment, the loading device 3000 and the feeding device 4000 are both spaced apart from the turntable 5200, and the loading device 3000 is compatible with the second workpiece loading station. After the second positioning mechanism 1200 moves and forms a placement groove 1300 with the first workpiece 100 for the second workpiece 200, the loading device 3000 places the second workpiece 200 in the placement groove 1300, thereby increasing the degree of automation.

[0073] Furthermore, the laser welding equipment also includes a controller, which is connected to the positioning device 1000, the welding device 2000, the loading device 3000 and the feeding device 4000. The controller drives the positioning device 1000, the welding device 2000, the loading device 3000 and the feeding device 4000 to move, so that the multiple devices cooperate with each other.

[0074] In the embodiment of this application, Figure 9 As shown, the first workpiece 100 is a drawer guide rail, and the second workpiece 200 is a pick. The first workpiece 100 and the second workpiece 200 can be other workpieces.

[0075] The present application also provides a laser welding method using the laser welding device as described above. Figure 10 The laser welding method comprises the following steps:

[0076] Step S10: The positioning device is located at the first workpiece loading station, and the first workpiece is placed on the first positioning mechanism of the positioning device;

[0077] Step S30, the first positioning mechanism positions the first workpiece in a first direction and a second direction;

[0078] Step S40: the second positioning mechanism of the positioning device moves and forms a placement groove with the first workpiece for placing the second workpiece;

[0079] Step S70, placing the second workpiece in the placement slot to position the second workpiece in a first direction, and the second positioning mechanism positions the first workpiece and the second workpiece in a third direction;

[0080] Step S90: the second positioning mechanism moves and no longer forms a placement groove with the first workpiece;

[0081] In step S100 , a laser beam emitted by a welding device acts on a connection between a first workpiece and a second workpiece.

[0082] First, a person manually places the first workpiece on the first positioning mechanism of the positioning device at the first workpiece loading station; then, the first positioning mechanism positions the first workpiece in the first direction and the second direction; then, the second positioning mechanism of the positioning device moves and forms a placement groove with the first workpiece for placing the second workpiece; then, the second workpiece is placed in the placement groove to position the first direction of the second workpiece, and the second positioning mechanism positions the first and second workpieces in the third direction; when the welding device is required to weld the connection between the second workpiece and the first workpiece, the second positioning mechanism is started again to move so that the second positioning mechanism no longer forms a placement groove with the first workpiece, so that the first direction of the second workpiece is not blocked by the second positioning mechanism, which facilitates the welding device to weld the connection between the second workpiece and the first workpiece; finally, the welding device welds the connection between the first workpiece and the second workpiece.

[0083] A laser welding method provided by the present application realizes the positioning of the first workpiece and the second workpiece in multiple directions, and makes the second workpiece tightly connected to the first workpiece, thereby ensuring the accurate positioning of the first workpiece and the second workpiece; on the other hand, the welding device uses laser to weld the first workpiece and the second workpiece, and the thermal stress generated by laser welding is small. After the first workpiece and the second workpiece are welded together, the deformation of the welded product is small, and laser welding does not require the welding head to be close to the first workpiece and the second workpiece, and the first direction of the second workpiece is not blocked by the second positioning mechanism, and the spatial area of ​​laser welding is large; therefore, the present application ensures that the deformation of the welded product is small, the positioning is accurate, and the welding quality is high, so that there will be no deviation when it is installed with other components later, the installation is easy, and no additional correction work is required for the welded product, thereby reducing labor costs and production cycles.

[0084] Furthermore, after step S40 in which the second positioning mechanism moves and forms a placement groove for placing the second workpiece with the first workpiece, the laser welding method further includes:

[0085] Step S50, placing the second workpiece into the feeding device, wherein the feeding device vibrates and sorts the second workpiece and then feeds it to the loading device;

[0086] In step S60 , after receiving the second workpiece, the loading device transports the second workpiece to the placement slot.

[0087] A large number of second workpieces are manually placed on the feeding device, and the second workpieces are vibrated and sorted before being transported to the loading device; when the loading device receives the second workpieces, it transports the second workpieces to the placement slot, reducing manual participation and increasing the degree of automation of the machine.

[0088] Furthermore, after the step S10 of placing the first workpiece on the first positioning mechanism, the laser welding method further includes:

[0089] S20: The rotating device drives the positioning device on which the first workpiece is placed to rotate to the second workpiece loading station.

[0090] Furthermore, after the step S70 of placing the second workpiece in the placement groove to position the second workpiece in the first direction, and positioning the first workpiece and the second workpiece in the third direction by the second positioning mechanism, the laser welding method further includes:

[0091] S80: The rotating device drives the positioning device on which the first workpiece and the second workpiece are positioned to rotate to the welding station.

[0092] Furthermore, after step S70 in which the laser emitted by the welding device acts on the connection between the first workpiece and the second workpiece, the laser welding method further includes:

[0093] S110. The rotating device drives the positioning device, on which the finished welded product is placed, to rotate to the first workpiece loading station. The finished welded product is manually removed from the positioning device, and the unwelded first workpiece is placed again on the first positioning mechanism. This cycle continues, simultaneously positioning, loading, and welding three sets of first and second workpieces. This achieves high welding efficiency and automated welding of the first and second workpieces.

[0094] Obviously, the embodiments described above are only some of the embodiments of the present application, rather than all of the embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present application specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present application.

Claims

1. A laser welding device, characterized in that: include: A positioning device and a welding device; the positioning device includes a first positioning mechanism and a second positioning mechanism, the second positioning mechanism being arranged on the first positioning mechanism, the first positioning mechanism being used to place a first workpiece and position the first workpiece in a first direction and a second direction, the second positioning mechanism moving and forming a placement groove with the first workpiece, the placement groove being used to place a second workpiece and position the second workpiece in a first direction, the second positioning mechanism being used to position the first workpiece and the second workpiece in a third direction so that the second workpiece is tightly connected to the first workpiece; the welding device being used to weld the connection between the first workpiece and the second workpiece; The first positioning mechanism includes a mounting seat, the second positioning mechanism is provided on the mounting seat, the first workpiece is placed on the surface of the mounting seat, one end of the mounting seat is provided with a first telescopic module that telescopes toward the first workpiece, and two ends of the first workpiece are respectively in contact with the mounting seat and the first telescopic module to position the first workpiece in a first direction; one side of the mounting seat is provided with a second telescopic module that telescopes toward the first workpiece, and two sides of the first workpiece are respectively in contact with the mounting seat and the second telescopic module to position the first workpiece in a second direction; The second positioning mechanism includes a first clamping module provided on the first positioning mechanism, the first clamping module being tightened in the direction of the first workpiece to form the placement groove with the first workpiece to position the second workpiece in the first direction; the second positioning mechanism also includes a second clamping module provided on the first positioning mechanism and extending through the end surface of the first positioning mechanism, the second clamping module being tightened in the direction of the second workpiece to position the first workpiece and the second workpiece in the third direction; The first clamping module includes a clamping jaw, wherein the movable end of the clamping jaw is provided with a clamping block on the side facing the first workpiece; when the movable end of the clamping jaw is tightened, the two clamping blocks are symmetrically arranged and arranged opposite to the first workpiece to form the placement groove, so as to position the second workpiece in the first direction; the second clamping module includes a second cylinder, wherein the movable end of the second cylinder is provided with a pressure plate, and the second cylinder drives the pressure plate to rotate and telescope toward the second workpiece, so as to position the first and second workpieces in the third direction; Among them, when the second positioning mechanism moves and forms the placement groove for placing the second workpiece with the first workpiece, the loading device places the second workpiece in the placement groove; when the welding device is needed to weld the connection between the second workpiece and the first workpiece, the second positioning mechanism is started to move so that the second positioning mechanism no longer forms the placement groove with the first workpiece, so that the first direction of the second workpiece is not blocked by the second positioning mechanism.

2. The laser welding equipment according to claim 1, characterized in that A first guide rail is provided on the lower surface of the mounting seat, a first slider is slidably mounted on the first guide rail, and the first slider is connected to the second telescopic module; The second telescopic module includes a first cylinder and a sliding plate, the middle part of the sliding plate is connected to the first slider, the first cylinder is connected to the side wall of the sliding plate and drives the sliding plate to telescopic movement toward the first workpiece, a fixed block is provided on the sliding plate, the fixed block is connected to one end of the first connecting rod, a first abutting block is slidably provided on the other end of the first connecting rod, a first elastic member is sleeved on the first connecting rod, the two ends of the first elastic member are respectively abutted against the fixed block and the first abutting block, the end of the first abutting block away from the first elastic member abuts against one side of the first workpiece, and the other side of the first workpiece abuts against the mounting seat to position the second direction of the first workpiece.

3. The laser welding equipment according to any one of claims 1 to 2, characterized in that: The laser welding equipment also includes a loading device; The feeding device includes a feeding bracket, the feeding bracket is provided with a material receiving mechanism, and the material receiving mechanism includes a material receiving plate and a second sensor; A linear module is also provided on the loading bracket, and the linear module is spaced apart from the material receiving mechanism. A third cylinder is slidably provided on the linear module, and the linear module drives the third cylinder to perform telescopic movement toward the positioning device. A suction mechanism is provided at the movable end of the third cylinder, and the third cylinder drives the suction mechanism to perform telescopic movement toward the material receiving mechanism or the positioning device to absorb, transport and load the second workpiece.

4. The laser welding equipment according to any one of claims 1 to 2, characterized in that: The laser welding equipment also includes a feeding device; The feeding device includes a feeding bracket, which is provided with a vibrating plate, a linear vibrator and a track. The vibrating plate is provided with a spiral material channel for transporting the second workpiece upwardly and inclined. The track is provided on the linear vibrator, and one end of the track is connected to the material channel of the vibrating plate to transport the second workpiece.

5. The laser welding equipment according to any one of claims 1-2, characterized in that: The laser welding equipment also includes a rotating device; The rotating device includes a rotating bracket, a divider is provided on the rotating bracket, a turntable is provided on the flange of the divider, and a first workpiece loading station, a second workpiece loading station and a welding station are provided in sequence along the rotation direction of the turntable; there are multiple positioning devices, and the multiple positioning devices are arranged at equal intervals on the turntable and correspond to the first workpiece loading station, the second workpiece loading station and the welding station; the welding device is arranged at intervals from the turntable and matches the welding station.

6. A laser welding method, characterized in that: The method is applied to the laser welding equipment according to any one of claims 1 to 5, and the method comprises the following steps: The positioning device is located at the first workpiece loading station, and the first workpiece is placed on the first positioning mechanism of the positioning device; The first positioning mechanism positions the first workpiece in a first direction and a second direction; The second positioning mechanism of the positioning device moves and forms a placement groove for placing the second workpiece with the first workpiece; Placing the second workpiece in the placement slot to position the second workpiece in a first direction, and the second positioning mechanism positions the first workpiece and the second workpiece in a third direction; The second positioning mechanism moves and no longer forms a placement groove with the first workpiece; The laser emitted by the welding device acts on the connection between the first workpiece and the second workpiece.

7. The laser welding method according to claim 6, characterized in that: After the second positioning mechanism moves and forms a placement groove for placing the second workpiece with the first workpiece, the laser welding method further includes: The second workpiece is placed in the feeding device, and the feeding device vibrates and sorts the second workpiece and then conveys it to the loading device; After receiving the second workpiece, the loading device transports the second workpiece to the placement slot.

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