A high-precision laser welding machine

Abstract

The present invention discloses a high-precision laser welding machine, which relates to the technical field of welding machines and includes a substrate, wherein first fixing members are welded on both sides of the top of the substrate, and a first sleeve is installed on the side where the two groups of the first fixing members are close to each other. The present invention realizes the clamping and fixing of the two groups of workpieces to be welded by the coordinated use of two groups of telescopic mechanisms and clamping mechanisms, and makes the welding surfaces fit together. Secondly, the coordinated use of the transverse motion mechanism and the longitudinal motion mechanism realizes the welding of the top and bottom edges of the welding surface, and drives the driving gear to rotate by the output end of the flip motor. Driven by the gear conveyor belt, the transmission gear and the rotating cylinder rotate as a whole, so that the cooling fan faces downward, and the welded workpiece is quickly cooled. A detection mechanism is also provided to detect the quality of the welding seam, which is convenient and fast, and meets the needs of the staff.

Description

Technical Field

[0001] The present invention relates to the technical field of welding machines, in particular to a high-precision laser welding machine. Background Art

[0002] Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. It is one of the important aspects of the application of laser material processing technology. Due to the advantages of high efficiency and low cost, laser welding has gradually replaced the original manual welding, flame welding and other welding methods. The principles of laser welding can be divided into heat conduction welding and laser deep penetration welding. It has been widely used in aerospace, automobile manufacturing, medical and other fields.

[0003] A Chinese patent discloses a surface welding device for hardware processing and its use method (CN201910696297.2). After two hardware plates are welded together, the quality of the weld cannot be guaranteed. Therefore, the two welded hardware plates are prone to breakage at the weld position during subsequent use. The device in the above patent is not equipped with a detection mechanism to squeeze the welded hardware plates, which makes it difficult to detect the quality of the weld and difficult to meet the needs of staff. Summary of the Invention

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A high-precision laser welding machine, comprising:

[0006] A base plate, wherein first fixing members are welded to both sides of the top of the base plate, and a first sleeve is installed on the side where the two groups of the first fixing members are close to each other, the second sleeve, the third sleeve and the fourth sleeve are slidably connected inside the first sleeve, and the outer end of the fourth sleeve is fixedly connected to the connecting member, the top rear side of the base plate is connected to the connecting frame through the second fixing member, the interior of the connecting frame is slidably connected to the support plate, and the front bottom end of the support plate is rotatably connected to the rotating cylinder;

[0007] a telescopic mechanism, which is installed inside the first sleeve, the second sleeve, the third sleeve, and the fourth sleeve, and is used to drive the connecting members on both sides to move closer to or away from each other;

[0008] A clamping mechanism, wherein the clamping mechanism is installed on the connecting member;

[0009] a transverse motion mechanism, the transverse motion mechanism being installed inside the connection frame and connected to the support plate;

[0010] A rotating mechanism, the rotating mechanism being mounted on the rotating cylinder and the supporting plate;

[0011] A longitudinal motion mechanism, the longitudinal motion mechanism being mounted inside the rotating drum and connected to a mounting block, the mounting block being provided with a welding assembly;

[0012] The detection mechanism is arranged on the top of the base plate and is used to detect the quality of the workpiece after welding.

[0013] In a preferred solution, the welding assembly includes a welding head, a cold air blower is installed on the top of the mounting block, and an electric push rod is fixedly connected to the bottom of the mounting block, the output end of the electric push rod is fixedly connected to the welding head, and a fixed plate is welded on the left side of the mounting block, a purification box and an air pump are installed on the top of the fixed plate, the input end of the air pump is connected to the suction head through an air pipe, and the output end of the air pump is connected to the purification box through an air pipe.

[0014] In a preferred embodiment, the telescopic mechanism includes a transmission motor, a ball screw, a moving part and a telescopic part. The transmission motor is fixedly mounted on the inner wall of the first sleeve. The inner wall of the first sleeve is also fixedly connected to a connecting plate. One end of the ball screw is fixedly connected to the output end of the transmission motor, and the other end of the ball screw is rotatably connected to the inside of the connecting plate. The moving part is threadedly connected to the outer surface of the ball screw.

[0015] In a preferred embodiment, the inner wall of the first sleeve is also fixedly connected to the first fixed shaft, the outer surface of the first fixed shaft is rotatably connected to the first rotating arm and the second rotating arm, and the inner wall of the fourth sleeve is fixedly connected to the second fixed shaft, the outer surface of the second fixed shaft is rotatably connected to the third rotating arm and the fourth rotating arm, the two ends of one side of the telescopic member are rotatably connected to the first rotating arm and the second rotating arm respectively, and the two ends of the other side of the telescopic member are rotatably connected to the third rotating arm and the fourth rotating arm respectively, the movable member is fixedly connected to the telescopic member, and limiting grooves are provided on the second sleeve and the third sleeve, and a limiting rod is provided on the telescopic member, the limiting rod is slidably matched with the limiting groove, and the limiting rod moves along the axial direction in the limiting groove.

[0016] In a preferred embodiment, the clamping mechanism includes a rotating shaft, a threaded rod, a first movable plate and a second movable plate, the outer side of the connecting member is rotatably connected to the rotating shaft through a bearing, the outer end of the rotating shaft is fixedly connected to the fixed frame, the threaded rod is rotatably connected to the inside of the fixed frame, the threads opened at both ends of the threaded rod have opposite rotation directions, and the first movable plate and the second movable plate are respectively threadedly connected to the two ends of the outer surface of the threaded rod, the outer sides of the first movable plate and the second movable plate are both welded with clamping members, the interior of the fixed frame is also fixedly connected to a guide rail, the first movable plate and the second movable plate are both slidably connected to the outer surface of the guide rail, the fixed frame is connected to a first stepper motor, the output end of the first stepper motor extends to the interior of the fixed frame and is fixedly connected to one end of the threaded rod.

[0017] In a preferred solution, the top ends of the first movable plate and the second movable plate are fixedly connected to the fixed block through several groups of second fixed rods, the fixed block is rotatably connected to a rotating rod, the bottom end of the fixed block is fixedly installed with an adjustment motor, the bottom end of the rotating rod is fixedly connected to the output end of the adjustment motor, and the top end of the outer surface of the rotating rod is fixedly connected with a mounting part, the top of the mounting part is fixedly installed with a cylinder, the output end of the cylinder passes through the top wall of the mounting part and is fixedly installed with a pressure plate, a rubber pad is provided at the bottom of the pressure plate, and a motor is installed inside one of the groups of the connecting parts, and the output end of the motor is fixedly connected to one of the groups of rotating shafts.

[0018] In a preferred solution, the lateral movement mechanism includes a first gear and a second gear, the first gear and the second gear are respectively rotatably connected to the inner sides of the connecting frame, the first gear is connected to the second gear through a chain, the support plate is fixedly connected to the outer surface of the chain, a second stepper motor is fixedly installed at a position near the right side of the top of the connecting frame, one end of the first gear is fixedly connected to the output end of the second stepper motor, and baffles are welded at left and right symmetrical positions inside the connecting frame, a slot is penetrated on the baffle for the chain to pass through, a slide groove is provided on the front side of the connecting frame, a slider adapted to the slide groove is fixedly connected to the support plate, and the slider is slidably connected to the inside of the slide groove.

[0019] In a preferred solution, the rotating mechanism includes a driving gear, which is rotatably connected to the front top of the support plate, a transmission gear is fixedly installed on the outer surface of the rotating cylinder, the driving gear is connected to the transmission gear through a gear conveyor belt, and a flip motor is installed on the back of the support plate, the flip motor is fixedly installed on the back of the support plate, and its output end passes through the support plate and is fixedly connected to the middle of the driving gear.

[0020] In a preferred solution, the longitudinal motion mechanism includes a transmission screw and a guide rod, the transmission screw is rotatably connected to one side of the interior of the rotating cylinder, and the guide rod is fixedly connected to the other side of the interior of the rotating cylinder, the mounting block is threadedly connected to the outer surface of the transmission screw, and the mounting block is slidably connected to the outer surface of the guide rod, and a third stepper motor is installed on the rotating cylinder, and the output end of the third stepper motor passes through the side wall of the rotating cylinder and is connected to one end of the transmission screw.

[0021] In a preferred solution, the detection mechanism includes a first frame, the first frame is welded to the top of the base plate, the first frame is rotatably connected to a longitudinal screw inside, the outer surface of the longitudinal screw is threadedly connected to the second frame, the second frame is slidably connected to the first connecting rod, and the first connecting rod is fixedly connected to the inside of the first frame, the outer end of the longitudinal screw is fixedly connected to the output end of the fourth stepper motor, the fourth stepper motor is installed on the outside of the first frame, the second frame is fixedly installed with a fifth stepper motor, the output end of the fifth stepper motor is fixedly installed with a transverse screw, the transverse screw is threadedly connected to a mounting plate, a second connecting rod is also installed inside the second frame, the mounting plate is slidably connected to the second connecting rod, an electric lifting rod is provided on the top of the mounting plate, and the output end of the electric lifting rod is fixedly connected to the detection head.

[0022] Compared with the prior art, the present invention provides a high-precision laser welding machine with the following beneficial effects:

[0023] First, the present invention achieves precise workpiece positioning and weld surface alignment through the coordinated design of a multi-directional clamping and telescopic mechanism. The clamping mechanism, combined with a bidirectional threaded rod to drive the synchronous movement of the clamping elements, coordinates with the telescopic mechanism's multi-layer sleeves to deploy, adapting to the needs of securing workpieces of varying sizes. Furthermore, the pressure plate, through rotational adjustment and vertical clamping, ensures workpiece stability during welding, effectively improving welding accuracy and clamping reliability.

[0024] Second, the present invention utilizes a combination of lateral, longitudinal, and rotational motion control to achieve all-around welding and dynamic cooling. A lateral motion mechanism drives the welding assembly horizontally via a gear chain drive. A longitudinal mechanism uses a screw guide to adjust the welding height, while a rotational mechanism drives the air cooler to rotate and deliver directional air. This multi-dimensional motion coordination allows the welding head to cover the top, bottom, and edge areas of the workpiece, while the cold air can rapidly cool high-temperature areas, ensuring a balanced weld integrity and processing efficiency.

[0025] Third, this invention innovatively incorporates an adjustable clamping mechanism and workpiece flipping functionality. The clamping assembly, driven by a motor, achieves multi-angle rotational adjustment, allowing the workpiece to be flipped over the rotating shaft after welding and repositioned using a telescopic mechanism. This design not only overcomes the operational limitations of traditional equipment for complex welding surfaces but also enables double-sided welding within the same tooling, reducing repeated clamping steps and significantly improving the continuity of the processing flow.

[0026] Fourth, the present invention integrates an automated inspection module to achieve closed-loop control of weld quality. The inspection mechanism uses a dual-axis drive system to drive the three-dimensional movement of the inspection head, combined with lift and impact functions to simulate the stress conditions under actual working conditions. This device can immediately verify weld strength after welding is completed, promptly identifying defects such as cold welds and misalignment. This creates an integrated process from processing to quality inspection, reducing manual inspection costs and enhancing quality control capabilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 For the present invention Figure 1 Schematic diagram of the proposed enlarged structure at point A;

[0029] Figure 3 Schematic diagram of the structure of the detection mechanism of the present invention;

[0030] Figure 4 It is a structural diagram of the connection frame in the present invention;

[0031] Figure 5 Schematic diagram of the structure of the clamping mechanism of the present invention;

[0032] Figure 6 It is a structural schematic diagram of the mounting member in the present invention;

[0033] Figure 7 Schematic diagram of the structure of the lateral motion mechanism of the present invention;

[0034] Figure 8 For the present invention Figure 7 Schematic diagram of the proposed enlarged structure at B;

[0035] Figure 9 It is a structural schematic diagram of the rotating mechanism in the present invention;

[0036] Figure 10 Schematic diagram of the structure of the longitudinal motion mechanism of the present invention;

[0037] Figure 11 It is a structural schematic diagram of the welding head and the cooling air blower in the present invention;

[0038] Figure 12 Schematic diagram of the structure of the first sleeve, the second sleeve, the third sleeve and the fourth sleeve in the present invention;

[0039] Figure 13 For the present invention Figure 12 Schematic diagram of the proposed enlarged structure at location C.

[0040] The numbers in the figure are:

[0041] 1. Base plate; 101. First fixing member; 102. First sleeve; 103. Second sleeve; 104. Third sleeve; 105. Fourth sleeve; 106. Connector; 107. Second fixing member; 108. Connecting frame; 109. Support plate; 110. Rotating cylinder; 111. Mounting block; 112. Fixing plate; 113. Electric push rod; 114. Welding head; 115. Air cooler; 116. Purification box; 117. Air pump; 118. Suction head;

[0042] 2. Telescopic mechanism; 201. Transmission motor; 202. Ball screw; 203. Connecting plate; 204. First rotating arm; 205. Second rotating arm; 206. Moving member; 207. Third rotating arm; 208. Fourth rotating arm; 209. Telescopic member; 210. Limiting slot; 211. Limiting rod;

[0043] 3. Clamping mechanism; 301. Rotating shaft; 302. Fixed frame; 303. Threaded rod; 304. Guide rail; 305. First movable plate; 306. Second movable plate; 307. Clamping member; 308. First stepper motor; 309. Second fixed rod; 310. Fixed block; 311. Rotating rod; 312. Adjustment motor; 313. Mounting member; 314. Cylinder; 315. Pressing plate; 316. Motor;

[0044] 4. Horizontal motion mechanism; 401. First gear; 402. Second gear; 403. Chain; 404. Second stepping motor; 405. Baffle; 406. Slide; 407. Slider;

[0045] 5. Rotating mechanism; 501. Driving gear; 502. Transmission gear; 503. Gear conveyor belt; 504. Flipping motor;

[0046] 6. Longitudinal motion mechanism; 601. Transmission screw; 602. Guide rod; 603. Third stepping motor;

[0047] 7. Detection mechanism; 701. First frame; 702. Longitudinal screw; 703. First connecting rod; 704. Fourth stepper motor; 705. Second frame; 706. Transverse screw; 707. Second connecting rod; 708. Fifth stepper motor; 709. Mounting plate; 710. Electric lifting rod; 711. Detection head. DETAILED DESCRIPTION

[0048] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0049] Example 1, please refer to Figures 1-13 As shown, a high-precision laser welding machine includes:

[0050] Base plate 1, first fixing members 101 are welded to both sides of the top of the base plate 1, and a first sleeve 102 is installed on the side where the two groups of first fixing members 101 are close to each other. The second sleeve 103, the third sleeve 104 and the fourth sleeve 105 are slidably connected inside the first sleeve 102, and the outer end of the fourth sleeve 105 is fixedly connected to the connecting member 106. The top rear side of the base plate 1 is connected to the connecting frame 108 through the second fixing member 107. The interior of the connecting frame 108 is slidably connected to a support plate 109, and the front bottom end of the support plate 109 is rotatably connected to a rotating cylinder 110;

[0051] Telescopic mechanism 2, which is installed inside the first sleeve 102, the second sleeve 103, the third sleeve 104 and the fourth sleeve 105, and is used to drive the connecting members 106 on both sides to move closer to or away from each other;

[0052] The clamping mechanism 3 is mounted on the connecting member 106 and is used to clamp the workpiece;

[0053] The lateral motion mechanism 4 is installed inside the connection frame 108 and connected to the support plate 109;

[0054] Rotating mechanism 5, which is mounted on the rotating cylinder 110 and the support plate 109;

[0055] The longitudinal movement mechanism 6 is installed inside the rotating cylinder 110 and connected to the mounting block 111. The mounting block 111 is provided with a welding assembly;

[0056] The detection mechanism 7 is arranged on the top of the base plate 1 and is used to detect the quality of the workpiece after welding.

[0057] Please refer to Figure 11 As shown, the welding assembly includes a welding head 114, a cold air blower 115 is installed on the top of the mounting block 111, and an electric push rod 113 is fixedly connected to the bottom of the mounting block 111, the output end of the electric push rod 113 is fixedly connected to the welding head 114, and a fixing plate 112 is welded to the left side of the mounting block 111, and a purification box 116 and an air pump 117 are installed on the top of the fixing plate 112, the input end of the air pump 117 is connected to the suction head 118 through an air pipe, and the output end of the air pump 117 is connected to the purification box 116 through an air pipe.

[0058] Example 2, please refer to Figure 12 and Figure 13As shown, the telescopic mechanism 2 includes a transmission motor 201, a ball screw 202, a moving part 206 and a telescopic part 209. The transmission motor 201 is fixedly mounted on the inner wall of the first sleeve 102. The inner wall of the first sleeve 102 is also fixedly connected to a connecting plate 203. One end of the ball screw 202 is fixedly connected to the output end of the transmission motor 201, and the other end of the ball screw 202 is rotatably connected to the inside of the connecting plate 203. The moving part 206 is threadedly connected to the outer surface of the ball screw 202.

[0059] Please refer to Figure 12 and Figure 13 As shown, the inner wall of the first sleeve 102 is also fixedly connected to the first fixed shaft, the outer surface of the first fixed shaft is rotatably connected to the first rotating arm 204 and the second rotating arm 205, and the inner wall of the fourth sleeve 105 is fixedly connected to the second fixed shaft, the outer surface of the second fixed shaft is rotatably connected to the third rotating arm 207 and the fourth rotating arm 208, the two ends of one side of the telescopic member 209 are rotatably connected to the first rotating arm 204 and the second rotating arm 205 respectively, and the two ends of the other side of the telescopic member 209 are rotatably connected to the third rotating arm 207 and the fourth rotating arm 208 respectively, the moving member 206 is fixedly connected to the telescopic member 209, and a limiting groove 210 is provided on the second sleeve 103 and the third sleeve 104, a limiting rod 211 is provided on the telescopic member 209, and the limiting rod 211 is slidably connected to the inside of the limiting groove 210.

[0060] Those skilled in the art will understand that, by driving the ball screw 202 to rotate through the output end of the transmission motor 201, the movable part 206 moves left and right, driving the telescopic part 409 to be in an extended or retracted state. When the telescopic part 409 is in the extended state, it drives the second sleeve 103, the third sleeve 104 and the fourth sleeve 105 to slide out from the interior of the first sleeve 102; when the telescopic part 409 is in the retracted state, it drives the second sleeve 103, the third sleeve 104 and the fourth sleeve 105 to retract into the interior of the first sleeve 102. Through this arrangement, the clamping mechanisms 3 on both sides can be driven to approach or move away from each other.

[0061] Example 3, please refer to Figure 5 and Figure 6As shown, the clamping mechanism 3 includes a rotating shaft 301, a threaded rod 303, a first movable plate 305 and a second movable plate 306. The outer side of the connecting member 106 is rotatably connected to the rotating shaft 301 through a bearing. The outer end of the rotating shaft 301 is fixedly connected to the fixed frame 302. The threaded rod 303 is rotatably connected to the inside of the fixed frame 302. The threads opened at both ends of the threaded rod 303 have opposite rotation directions, and the first movable plate 305 and the second movable plate 306 are respectively threadedly connected to the two ends of the outer surface of the threaded rod 303. The outer sides of the first movable plate 305 and the second movable plate 306 are welded with clamping members 307. The interior of the fixed frame 302 is also fixedly connected to the guide rail 304. The first movable plate 305 and the second movable plate 306 are both slidably connected to the outer surface of the guide rail 304. A first stepper motor 308 is installed on the outer side of the fixed frame 302. The output end of the first stepper motor 308 extends to the interior of the fixed frame 302 and is fixedly connected to one end of the threaded rod 303.

[0062] Please refer to Figure 5 and Figure 6 As shown, the top ends of the first movable plate 305 and the second movable plate 306 are fixedly connected to the fixed block 310 through several groups of second fixed rods 309, the internal rotation of the fixed block 310 is connected to the rotating rod 311, the bottom end of the fixed block 310 is fixedly installed with an adjustment motor 312, the bottom end of the rotating rod 311 is fixedly connected to the output end of the adjustment motor 312, and the top end of the outer surface of the rotating rod 311 is fixedly connected with a mounting member 313, the top of the mounting member 313 is fixedly installed with a cylinder 314, the output end of the cylinder 314 passes through the top wall of the mounting member 313, and is fixedly installed with a clamping plate 315, the bottom of the clamping plate 315 is provided with a rubber pad, and a motor 316 is installed inside one of the groups of connecting members 106, and the output end of the motor 316 is fixedly connected to one of the groups of rotating shafts 301.

[0063] Those skilled in the art can understand that, by driving the threaded rod 303 to rotate through the output end of the first stepper motor 308, the first movable plate 305 and the second movable plate 306 are moved closer to or away from each other, thereby changing the spacing between the two groups of clamping members 307, and by adjusting the output end of the motor 312 to drive the mounting member 313 to rotate, the clamping plate 315 is positioned directly above the two corners of the workpiece, and then the clamping plate 315 is driven downward by the output end of the cylinder 314 to clamp the two corners of the workpiece; and since the clamping mechanism 3 is provided on both sides, the two groups of workpieces can be clamped separately.

[0064] Example 4, please refer to Figure 7 and Figure 8As shown, the lateral movement mechanism 4 includes a first gear 401 and a second gear 402, which are respectively rotatably connected to the two sides of the interior of the connecting frame 108, and the first gear 401 is transmission-connected to the second gear 402 through a chain 403. The support plate 109 is fixedly connected to the outer surface of the chain 403. A second stepper motor 404 is fixedly installed at a position near the right side of the top of the connecting frame 108, one end of the first gear 401 is fixedly connected to the output end of the second stepper motor 404, and baffles 405 are welded at left and right symmetrical positions inside the connecting frame 108, and a slot for the chain 403 to pass through is opened on the baffle 405. A slide groove 406 is opened on the front side of the connecting frame 108, and a slider 407 adapted to the slide groove 406 is fixedly connected to the support plate 109, and the slider 407 is slidably connected to the inside of the slide groove 406.

[0065] Those skilled in the art will appreciate that the output end of the second stepper motor 404 drives the first gear 401 to rotate, thereby driving the chain 403, thereby allowing the support plate 109 to reciprocate in the horizontal direction, thereby changing the horizontal position of the welding head 114. Furthermore, the provision of two sets of baffles 405 ensures that the support plate 109 always moves between the two sets of baffles 405. Furthermore, the coordinated use of the slide 406 and the slider 407 improves the stability of the movement of the support plate 109.

[0066] Example 5, please refer to Figure 9 As shown, the rotating mechanism 5 includes a driving gear 501, which is rotatably connected to the front top of the support plate 109. A transmission gear 502 is fixedly installed on the outer surface of the rotating cylinder 110. The driving gear 501 is connected to the transmission gear 502 through a gear conveyor belt 503. A flip motor 504 is installed on the back of the support plate 109, and the middle part of the outer side of the driving gear 501 is fixedly connected to the output end of the flip motor 504.

[0067] Those skilled in the art will understand that by turning the output end of the motor 504 to drive the driving gear 501 to rotate, the transmission gear 502 and the rotating cylinder 110 are driven by the gear conveyor belt 503 to rotate as a whole, so that the cooling air fan 115 is directed downward to quickly cool the welded workpiece.

[0068] Example 6, please refer to Figure 10As shown, the longitudinal movement mechanism 6 includes a transmission screw 601 and a guide rod 602. The transmission screw 601 is rotatably connected to one side of the interior of the rotating cylinder 110, and the guide rod 602 is fixedly connected to the other side of the interior of the rotating cylinder 110. The mounting block 111 is threadedly connected to the outer surface of the transmission screw 601, and the mounting block 111 is slidably connected to the outer surface of the guide rod 602. One end of the transmission screw 601 is fixedly connected to the output end of the third stepper motor 603, and the third stepper motor 603 is fixedly connected to the rotating cylinder 110.

[0069] Those skilled in the art will appreciate that the output end of the third stepper motor 603 drives the transmission screw 601 to rotate, causing the mounting block 111 to slide back and forth along the outer surface of the guide rod 602 , thereby changing the longitudinal position of the welding head 114 .

[0070] Example 7, please refer to Figure 3 As shown, the detection mechanism 7 includes a first frame 701, which is welded to the top of the substrate 1. A longitudinal screw 702 is rotatably connected to the inside of the first frame 701, and the outer surface of the longitudinal screw 702 is threadedly connected to the second frame 705. The second frame 705 is slidably connected to the first connecting rod 703, and the first connecting rod 703 is fixedly connected to the inside of the first frame 701. The outer end of the longitudinal screw 702 is fixedly connected to the output end of the fourth stepper motor 704. The fourth stepper motor 704 is installed on the outside of the first frame 701. A fifth stepper motor 708 is fixedly installed on the inner wall of the second frame 705. The output end of the fifth stepper motor 708 is fixedly installed with a transverse screw 706, and a mounting plate 709 is threaded on the transverse screw 706. A second connecting rod 707 is also installed inside the second frame 705, and the mounting plate 709 is slidably connected to the second connecting rod 707. An electric lifting rod 710 is provided on the top of the mounting plate 709, and the output end of the electric lifting rod 710 is fixedly connected to the detection head 711.

[0071] Those skilled in the art will appreciate that, with the cooperation of the output end of the fourth stepper motor 704 and the output end of the fifth stepper motor 708 , the detection head 711 can move in both the horizontal and vertical directions, thereby changing the position of the detection head 711 .

[0072] The working principle and use process of this device: In order to clearly describe the working principle of the present invention, we use Figure 1 To elaborate on the perspective;

[0073] First, the output end of the first stepper motor 308 drives the threaded rod 303 to rotate, so that the first movable plate 305 and the second movable plate 306 move closer to or farther away from each other, thereby changing the distance between the two groups of clamping members 307. The output end of the adjusting motor 312 drives the mounting member 313 to rotate, so that the clamping plate 315 is directly above the two corners of the workpiece. Then, the output end of the cylinder 314 drives the clamping plate 315 downward to clamp the two corners of the workpiece. Since the clamping mechanisms 3 are provided on both sides, the two groups of workpieces can be clamped separately.

[0074] Secondly, the ball screws 202 are driven to rotate by the output ends of the transmission motors 201 on both sides, so that the telescopic members 409 on both sides are in an extended state, driving the second sleeve 103, the third sleeve 104 and the fourth sleeve 105 to slide out from the interior of the first sleeve 102, thereby driving the clamping mechanisms 3 on both sides and the two groups of workpieces clamped therein to approach each other, so that the welding surfaces of the two groups of workpieces are in contact with each other;

[0075] Next, the welding head 114 welds the top edge of the welding surface through the cooperation of the horizontal motion mechanism 4 and the vertical motion mechanism 6. Then, the output end of the motor 316 drives the two sets of workpieces after one welding to rotate synchronously and flip them so that the bottom of the unwelded edge faces upward. The welding operation is repeated to complete the second welding.

[0076] Finally, the clamping mechanism 3 on the left side is released, the telescopic mechanism 2 on the left side is reset, the clamping mechanism 3 on the right side remains clamped, and the telescopic mechanism 2 on the right side is in an extended state. The detection head 711 is driven by the detection mechanism 7 to move to the bottom left side of the workpiece after welding, and the detection head 711 is driven upward by the output end of the electric lifting rod 710 to hit the bottom left side of the workpiece after welding for observation. Afterwards, the clamping mechanism 3 on the right side is released, the telescopic mechanism 2 on the right side is reset, the clamping mechanism 3 on the left side remains clamped, and the telescopic mechanism 2 on the left side is in an extended state. The detection head 711 is driven by the detection mechanism 7 to move to the bottom right side of the workpiece after welding, and the detection head 711 is driven upward by the output end of the electric lifting rod 710 to hit the bottom right side of the workpiece after welding for observation, thereby realizing the detection of the quality of the weld.

[0077] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the invention as claimed.

Claims

1. A high-precision laser welding machine, characterized in that, include: A base plate (1), wherein first fixing members (101) are welded to both sides of the top of the base plate (1), first sleeves (102) are installed on the sides of two groups of the first fixing members (101) close to each other, the first sleeves (102) are internally slidably connected to the second sleeve (103), the third sleeve (104) and the fourth sleeve (105), the outer end of the fourth sleeve (105) is fixedly connected to the connecting member (106), the top rear side of the base plate (1) is connected to the connecting frame (108) through the second fixing member (107), the connecting frame (108) is internally slidably connected to the supporting plate (109), and the front bottom end of the supporting plate (109) is rotatably connected to the rotating cylinder (110); a telescopic mechanism (2), the telescopic mechanism (2) being installed inside the first sleeve (102), the second sleeve (103), the third sleeve (104), and the fourth sleeve (105), and being used to drive the connecting members (106) on both sides to move closer to or farther away from each other; A clamping mechanism (3), the clamping mechanism (3) being mounted on the connecting member (106); A lateral motion mechanism (4), the lateral motion mechanism (4) being installed inside the connection frame (108) and connected to the support plate (109); A rotating mechanism (5), the rotating mechanism (5) being mounted on the rotating cylinder (110) and the supporting plate (109); A longitudinal motion mechanism (6), the longitudinal motion mechanism (6) being installed inside the rotating cylinder (110) and connected to a mounting block (111), wherein a welding assembly is provided on the mounting block (111); A detection mechanism (7), the detection mechanism (7) being arranged on the top of the substrate (1) and used for detecting the quality of the workpiece after welding; The welding assembly includes a welding head (114), a cooling fan (115) is installed on the top of the mounting block (111), and an electric push rod (113) is fixedly connected to the bottom of the mounting block (111), the output end of the electric push rod (113) is fixedly connected to the welding head (114), and a fixing plate (112) is welded on the left side of the mounting block (111), a purification box (116) and an air pump (117) are installed on the top of the fixing plate (112), the input end of the air pump (117) is connected to the suction head (118) through an air pipe, and the output end of the air pump (117) is connected to the purification box (116) through the air pipe; The clamping mechanism (3) comprises a rotating shaft (301), a threaded rod (303), a first movable plate (305) and a second movable plate (306); the outer side of the connecting member (106) is rotatably connected to the rotating shaft (301) via a bearing; the outer end of the rotating shaft (301) is fixedly connected to the fixed frame (302); the threaded rod (303) is rotatably connected to the inside of the fixed frame (302); the threads at both ends of the threaded rod (303) are rotated in opposite directions, and the first movable plate (305) and the second movable plate (306) are respectively threadedly connected to the threaded rod (3 03) at both ends of the outer surface, the outer sides of the first movable plate (305) and the second movable plate (306) are welded with clamping members (307), the interior of the fixed frame (302) is also fixedly connected to a guide rail (304), the first movable plate (305) and the second movable plate (306) are both slidably connected to the outer surface of the guide rail (304), the fixed frame (302) is connected to a first stepper motor (308), the output end of the first stepper motor (308) extends to the interior of the fixed frame (302) and is fixedly connected to one end of the threaded rod (303); The top ends of the first movable plate (305) and the second movable plate (306) are fixedly connected to the fixed block (310) through a plurality of groups of second fixed rods (309); the fixed block (310) is internally rotatably connected to a rotating rod (311); the bottom end of the fixed block (310) is fixedly mounted with an adjustment motor (312); the bottom end of the rotating rod (311) is fixedly connected to the output end of the adjustment motor (312); and the top end of the outer surface of the rotating rod (311) is fixedly connected with a mounting member (313); a cylinder (314) is fixedly mounted on the top of the mounting member (313); the output end of the cylinder (314) passes through the top wall of the mounting member (313) and is fixedly mounted with a pressing plate (315); a rubber pad is provided at the bottom of the pressing plate (315); and a motor (316) is installed inside one group of the connecting members (106); the output end of the motor (316) is fixedly connected to one group of the rotating shafts (301); The rotating mechanism (5) includes a driving gear (501), the driving gear (501) is rotatably connected to the front top of the support plate (109), a transmission gear (502) is fixedly installed on the outer surface of the rotating cylinder (110), the driving gear (501) is transmission-connected to the transmission gear (502) via a gear conveyor belt (503), and a flip motor (504) is installed on the back of the support plate (109), the flip motor (504) is fixedly installed on the back of the support plate (109), and its output end passes through the support plate (109) and is fixedly connected to the middle of the driving gear (501).

2. A high-precision laser welding machine according to claim 1, characterized in that: The telescopic mechanism (2) comprises a transmission motor (201), a ball screw (202), a moving part (206) and a telescopic part (209); the transmission motor (201) is fixedly mounted on the inner wall of a first sleeve (102); the inner wall of the first sleeve (102) is also fixedly connected to a connecting plate (203); one end of the ball screw (202) is fixedly connected to the output end of the transmission motor (201), and the other end of the ball screw (202) is rotatably connected to the inside of the connecting plate (203); and the moving part (206) is threadedly connected to the outer surface of the ball screw (202).

3. A high-precision laser welding machine according to claim 2, characterized in that: The inner wall of the first sleeve (102) is also fixedly connected to a first fixed shaft, the outer surface of the first fixed shaft is rotatably connected to a first rotating arm (204) and a second rotating arm (205), and the inner wall of the fourth sleeve (105) is fixedly connected to a second fixed shaft, the outer surface of the second fixed shaft is rotatably connected to a third rotating arm (207) and a fourth rotating arm (208), one end of one side of the telescopic member (209) is rotatably connected to the first rotating arm (204) and the second rotating arm (205), and the The other two ends of the telescopic member (209) are rotatably connected to the third rotating arm (207) and the fourth rotating arm (208), respectively. The movable member (206) is fixedly connected to the telescopic member (209), and a limiting groove (210) is provided on the second sleeve (103) and the third sleeve (104). A limiting rod (211) is provided on the telescopic member (209), and the limiting rod (211) is slidably matched with the limiting groove (210). The limiting rod (211) moves along the axial direction in the limiting groove (210).

4. The high-precision laser welding machine according to claim 1, characterized in that: The lateral motion mechanism (4) includes a first gear (401) and a second gear (402), the first gear (401) and the second gear (402) are rotatably connected to the inner sides of the connection frame (108), the first gear (401) is connected to the second gear (402) through a chain (403), the support plate (109) is fixedly connected to the outer surface of the chain (403), a second stepping motor (404) is fixedly installed at a position near the right side of the top of the connection frame (108), the first One end of the gear (401) is fixedly connected to the output end of the second stepper motor (404), and baffles (405) are welded at left and right symmetrical positions inside the connecting frame (108), and a slot for the chain (403) to pass through is opened on the baffle (405), and a slide groove (406) is opened on the front side of the connecting frame (108), and a slider (407) adapted to the slide groove (406) is fixedly connected to the support plate (109), and the slider (407) is slidably connected to the inside of the slide groove (406).

5. The high-precision laser welding machine according to claim 1, characterized in that: The longitudinal motion mechanism (6) includes a transmission screw (601) and a guide rod (602), wherein the transmission screw (601) is rotatably connected to one side of the interior of the rotating cylinder (110), and the guide rod (602) is fixedly connected to the other side of the interior of the rotating cylinder (110), and the mounting block (111) is threadedly connected to the outer surface of the transmission screw (601), and the mounting block (111) is slidably connected to the outer surface of the guide rod (602), and a third stepper motor (603) is installed on the rotating cylinder (110), and the output end of the third stepper motor (603) passes through the side wall of the rotating cylinder (110) and is connected to one end of the transmission screw (601).

6. The high-precision laser welding machine according to claim 1, characterized in that: The detection mechanism (7) includes a first frame (701), the first frame (701) is welded to the top of the base plate (1), the first frame (701) is rotatably connected to a longitudinal screw (702), the outer surface of the longitudinal screw (702) is threadedly connected to a second frame (705), the second frame (705) is slidably connected to a first connecting rod (703), and the first connecting rod (703) is fixedly connected to the inside of the first frame (701), the outer end of the longitudinal screw (702) is fixedly connected to the output end of a fourth stepper motor (704), and the fourth stepper motor (704) is installed A fifth stepper motor (708) is fixedly mounted on the second frame (705) on the outside of the first frame (701), a transverse screw rod (706) is fixedly mounted on the output end of the fifth stepper motor (708), a mounting plate (709) is threadedly connected to the transverse screw rod (706), a second connecting rod (707) is further mounted inside the second frame (705), the mounting plate (709) is slidably connected to the second connecting rod (707), an electric lifting rod (710) is provided on the top of the mounting plate (709), and a detection head (711) is fixedly connected to the output end of the electric lifting rod (710).

Images