Hardware laser welding machine

Abstract

The application belongs to the technical field of hardware machining, in particular to a hardware laser welding machine, which comprises a welding machine base, the side end of the welding machine base is fixedly connected with an electric rotating disc, the output end of the electric rotating disc is fixedly connected with an extension frame, the outer part of the extension frame is provided with a welding frame, the sliding of the laser welding head in the inner wall of the welding frame is driven by the sliding frame, which can improve the effect of laser welding of the inner joint of the U-shaped hardware, the output end of the No.1 servo motor drives the connecting frame to rotate, the welding frame rotates up and down in cooperation with the No.1 disc, which can adjust the multiple angles of the laser welding head, adapt to the laser welding of the inner joint, the contact point is triggered by the extrusion of the sliding block in the sliding process of the convex block along with the sliding frame, which can control the output power change of the laser welding machine, the vertical plate of the hardware is clamped up and down by the No.1 clamping plate in cooperation with the No.2 clamping plate, the vertical plate is extruded and clamped left and right by the two extrusion blocks, which improves the welding stability of the U-shaped hardware.

Description

Technical Field

[0001] This invention belongs to the field of hardware processing technology, specifically a hardware laser welding machine. Background Technology

[0002] Hardware refers to tools made by processing metals such as gold, silver, copper, iron and tin. Hardware is mainly used for fixing objects, processing objects and decoration. Hardware comes in a wide variety of shapes, and some are even oddly shaped.

[0003] A patent application with publication number CN117300354A discloses a laser welding equipment for hardware processing, including a base cabinet, a worktable connected to the top of the base cabinet, a laser welding machine installed on the rear side of the top of the worktable, and positioning blocks for positioning the frame of the drain rack symmetrically connected to the left and right sides of the top of the worktable. This application, through the cooperation of the guide groove and the slide bar A, can release the drain rack bars when the loading hopper moves backward, so that the drain rack bars can be put into the receiving groove one by one to connect with the drain rack frame, quickly completing the loading of the bars, thereby improving the processing efficiency.

[0004] The aforementioned metal laser welding machine mainly uses the cooperation of guide groove and slide bar A to quickly complete the loading of bar, thereby improving the welding efficiency of metal parts. Since current laser welding machines are usually used for welding exposed surfaces, when welding irregularly shaped metal parts, the laser welding machine has difficulty fitting the inner joint of the irregularly shaped metal parts, thus affecting the efficiency of laser welding of irregularly shaped metal parts.

[0005] Therefore, the present invention provides a laser welding machine for hardware parts. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: A metal laser welding machine of the present invention includes a welding machine base; an electric turntable is fixedly connected to one end of the welding machine base; a telescopic frame is fixedly connected to the output end of the electric turntable; a welding frame is provided on the outside of the telescopic frame; a sliding frame is slidably connected to the inner wall of the welding frame through a first electric slider; a laser welding head is fixedly connected to the end of the sliding frame; a connecting component is provided between the telescopic frame and the welding frame, and the connecting component is used to adjust the laser welding angle of the laser welding head.

[0008] Preferably, the connecting assembly includes a first servo motor, a connecting frame, a second servo motor, and a first wheel; the first servo motor is fixed to the outer wall of the telescopic frame; the connecting frame is fixed to the output end of the first servo motor; the second servo motor is fixed to the outer wall of the connecting frame at the end away from the first servo motor; the first wheel is fixed to the output end of the second servo motor, the first wheel is rotatably connected to the inner wall of the connecting frame, and the outer wall of the first wheel is fixed to the outer wall of the welding frame.

[0009] Preferably, a sensor is fixedly connected to the top of the welding frame; multiple contacts are installed on the inner wall of the sensor; a sliding block is slidably connected to the inner wall of the sensor near the lower part of the contacts; an elastic element is fixedly connected between the inner wall of the sensor and the top of the sliding block; and a protrusion is fixedly connected to the upper surface of the sliding frame near the sliding block.

[0010] Preferably, the bottom ends of the plurality of sliding blocks are rounded; the top end of the protrusion is rounded.

[0011] Preferably, a fixed seat is fixedly connected to the top of the welding machine base and the side away from the electric turntable; a clamping plate is provided on the top of the fixed seat; a first clamping plate is fixedly connected to the bottom outer wall of the clamping plate; a second clamping plate is slidably connected to the outer wall of the clamping plate and above the first clamping plate via a second electric slider.

[0012] Preferably, grooves are formed on the opposing surfaces of the first clamping plate and the second clamping plate; a pressing block is slidably connected to the groove; and a second elastic element is fixedly connected to the outer wall of the pressing block.

[0013] Preferably, a turntable seat is fixedly connected to the end of the fixed base; a third servo motor is fixedly connected to the outer wall of the turntable seat; a second wheel is fixedly connected to the output end of the third servo motor, the second wheel is rotatably connected to the inner wall of the turntable seat, and the outer wall of the second wheel is fixedly connected to the outer wall of the clamping plate.

[0014] Preferably, the two sides of the clamping plate are slidably connected to an adsorption frame via a third electric slider; an adsorption plate is fixedly connected to the end of the adsorption frame away from the clamping plate; a vacuum pump is installed inside the second wheel; a connecting pipe is fixedly connected to the output end of the vacuum pump, and the connecting pipe is connected to the adsorption plate through the adsorption frame.

[0015] Preferably, both outer walls of the first clamping plate are fixed with support seats; the support seats are located below the adsorption plate.

[0016] Preferably, the cross-sectional shape of the two support seats is L-shaped; and corner grooves are provided on the two support seats.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The present invention discloses a laser welding machine for hardware parts. A sliding frame drives the laser welding head to slide along the inner wall of the welding frame, improving the laser welding effect on the inner seams of C-shaped hardware parts. A servo motor output drives the connecting frame to rotate, which in turn drives the welding frame to rotate up and down. This allows for adjustment of multiple angles of the laser welding head, adapting to laser welding of inner seams. A protrusion presses against the sliding block to trigger contacts during the sliding process, controlling the output power of the laser welding machine. A clamping plate and a clamping plate hold the vertical plate of the hardware part vertically, while two extrusion blocks press and clamp the vertical plate left and right, improving the welding stability of the C-shaped hardware parts.

[0019] 2. The hardware laser welding machine of the present invention drives the second disc to rotate through the output end of the third servo motor, which can adjust the welding angle of the C-shaped hardware splicing parts. It relies on two adsorption plates to adsorb the two horizontal plates, so that the two horizontal plates are spliced ​​against the two sides of the vertical plate, thereby improving the laser welding effect of the C-shaped hardware. It uses two support seats to fix the two sides of the first clamping plate, which can improve the stability of the C-shaped hardware laser welding. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the No. 1 roulette wheel in this invention;

[0023] Figure 3 This is a schematic diagram of the sliding block in this invention;

[0024] Figure 4 This is a schematic diagram of the structure of the adsorption disk in this invention;

[0025] Figure 5 This is a schematic diagram of the structure of the No. 1 clamp in this invention.

[0026] In the diagram: 1. Welding machine base; 11. Electric turntable; 12. Telescopic frame; 13. Welding frame; 14. Sliding frame; 15. Laser welding head; 2. Servo motor No. 1; 21. Connecting frame; 22. Servo motor No. 2; 23. Wheel No. 1; 3. Sensor; 31. Contact point; 32. Sliding block; 33. Elastic element No. 1; 34. Protrusion; 4. Fixed seat; 41. Clamping plate; 42. Clamping plate No. 1; 43. Clamping plate No. 2; 5. Extrusion block; 51. Elastic element No. 2; 6. Turntable seat; 61. Servo motor No. 3; 62. Wheel No. 2; 7. Adsorption frame; 71. Adsorption plate; 72. Connecting pipe; 8. Support seat; 81. Corner groove. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0028] like Figures 1 to 3 As shown in the embodiment of the present invention, a metal laser welding machine includes a welding base 1; an electric turntable 11 is fixedly connected to one end of the welding base 1; a telescopic frame 12 is fixedly connected to the output end of the electric turntable 11; a welding frame 13 is provided on the outside of the telescopic frame 12; a sliding frame 14 is slidably connected to the inner wall of the welding frame 13 via a first electric slider; a laser welding head 15 is fixedly connected to the end of the sliding frame 14; a connecting component is provided between the telescopic frame 12 and the welding frame 13, the connecting component being used to adjust the laser welding angle of the laser welding head 15; when laser welding a U-shaped irregular metal part, firstly, the three metal plates of the U-shaped metal part are assembled into a U-shape on the welding base 1, and the assembled metal plates are fixed and limited, then the output end of the electric turntable 11 drives the telescopic frame 12 to rotate by an angle, and the telescopic frame 12 can extend and retract vertically. At the output end of the electric turntable 11, the laser welding head 15 installed on the connecting component can approach the inner seam of the hardware plate. Since the inner seam of the C-shaped hardware is relatively deep, the first electric slider drives the sliding frame 14 to slide out from the inner wall of the welding frame 13, adjusting the distance between the laser welding head 15 and the inner seam so that the laser welding head 15 can fit against the inner seam of the C-shaped hardware for welding. The laser welding head 15 starts welding from the top of the inner seam of the C-shaped hardware. As the telescopic frame 12 retracts, it drives the laser welding head 15 installed on the connecting component to slowly slide down, which can laser weld the entire inner seam of the C-shaped hardware, thus achieving the effect of laser welding the inner seam of the C-shaped hardware and ensuring the laser welding efficiency of irregular hardware. At the same time, the setting of the sliding frame 14 driving the laser welding head 15 to slide out can also adapt to welding other irregular hardware.

[0029] The connecting assembly includes a first servo motor 2, a connecting frame 21, a second servo motor 22, and a first wheel 23. The first servo motor 2 is fixed to the outer wall of the telescopic frame 12. The connecting frame 21 is fixed to the output end of the first servo motor 2. The second servo motor 22 is fixed to the outer wall of the connecting frame 21 at the end away from the first servo motor 2. The first wheel 23 is fixed to the output end of the second servo motor 22, and is rotatably connected to the inner wall of the connecting frame 21, with the outer wall of the first wheel 23 being parallel to the inner wall of the connecting frame 21. The outer wall of the welding frame 13 is fixed; when laser welding the inner joint of the C-shaped hardware, the connecting frame 21 is fixed to the output end of the first servo motor 2. When the output end of the first servo motor 2 rotates, it can drive the laser welding head 15 to adjust its welding up and down angle. As the output end of the second servo motor 22 drives the first wheel 23 to rotate, the up and down angle of the welding frame 13 can be adjusted, so that the laser welding head 15 can fit against the inner joint of the C-shaped hardware for welding, thereby improving the welding effect of the inner joint of the C-shaped hardware.

[0030] A sensor 3 is fixedly attached to the top of the welding frame 13; multiple contacts 31 are installed on the inner wall of the sensor 3; a sliding block 32 is slidably connected to the inner wall of the sensor 3 near the lower part of the contacts 31; a first elastic element 33 is fixedly connected between the inner wall of the sensor 3 and the top of the sliding block 32; a protrusion 34 is fixedly attached to the upper surface of the sliding frame 14 near the sliding block 32; when the first electric slider drives the laser welding head 15 at the front end of the sliding frame 14 to slide out and fit the inner seam of the C-shaped hardware, the protrusion 34 slides with the sliding frame 14 and presses the multiple sliding blocks 32 respectively. The protrusion 34 presses the sliding block 32 to slide upwards, and the sliding block 32 simultaneously presses the first elastic element 33 to contract and trigger the contact 31 on the sensor 3. After the contact 31 is triggered, the sensor 3 sends an electrical signal to the main controller. The main controller adjusts the power of the laser welding machine. Each contact 31 corresponds to a set welding power. The closer the contact 31 is to the laser welding head 15, the greater the set welding power. As the sliding frame 14 extends longer from the welding frame 13, the greater the power of the laser welding machine, ensuring the stable output power and welding effect of the laser welding machine.

[0031] The bottom ends of the multiple sliding blocks 32 are rounded; the top end of the protrusion 34 is rounded. As the protrusion 34 slides with the sliding frame 14, the rounded top end of the protrusion 34 fits against the rounded bottom end of the sliding block 32, allowing the protrusion 34 to easily press the sliding block 32 upward. After sliding upward, the sliding block 32 presses the first elastic element 33 to contract and trigger the contact 31. The sensor 3 sends an electrical signal to control the output power of the laser welding machine. After the protrusion 34 passes the sliding block 32, the first elastic element 33 uses its elastic force to press the sliding block 32 back to its original position, thus automatically adjusting the output power of the laser welding machine.

[0032] like Figure 1 , Figure 4 and Figure 5 As shown, a fixed base 4 is fixedly connected to the top of the welding machine base 1 and to the side away from the electric turntable 11; a clamping plate 41 is provided on the top of the fixed base 4; a first clamping plate 42 is fixedly connected to the bottom outer wall of the clamping plate 41; a second clamping plate 43 is slidably connected to the outer wall of the clamping plate 41 and above the first clamping plate 42 via a second electric slider; when laser welding C-shaped hardware parts, multiple hardware plates need to be assembled into a C-shape in advance, and a vertical plate is first placed on the clamping plate 41 above the fixed base 4 and placed on the upper surface of the first clamping plate 42. As the second electric slider drives the second clamping plate 43 to slide down, until the second clamping plate 43 cooperates with the first clamping plate 42 to clamp the vertical plate. Then, the two horizontal plates are spliced ​​and fixed to the two ends of the vertical plate, so that the inner joint of the C-shaped hardware parts can be laser welded, which plays a role in assisting the splicing of accessories of C-shaped hardware parts.

[0033] The surfaces of the first clamping plate 42 and the second clamping plate 43 are both provided with grooves; pressing blocks 5 are slidably connected to the grooves; the outer wall of the pressing blocks 5 is fixedly connected to the second elastic element 51; when assembling the accessories of the C-shaped hardware, the vertical plate is placed in the groove of the first clamping plate 42, and the vertical plate is pushed to press the two pressing blocks 5 on the first clamping plate 42 and the second clamping plate 43 to slide. The two second elastic elements 51 elastically contract, and the second clamping plate 43 slides down so that the vertical plate is stuck in its groove. After the vertical plate is released, the two second elastic elements 51 elastically reset and press the pressing blocks 5 to slide. The two pressing blocks 5 respectively cooperate with the inner walls of the first clamping plate 42 and the second clamping plate 43 to clamp the vertical plate, which facilitates the assembly and welding of the accessories of the C-shaped hardware.

[0034] A turntable seat 6 is fixedly connected to the end of the fixed base 4; a third servo motor 61 is fixedly connected to the outer wall of the turntable seat 6; a second wheel 62 is fixedly connected to the output end of the third servo motor 61, and the second wheel 62 is rotatably connected to the inner wall of the turntable seat 6, and the outer wall of the second wheel 62 is fixedly connected to the outer wall of the clamping plate 41; when laser welding the assembled C-shaped hardware parts, the splicing angle is difficult to match with the laser welding head 15 for laser welding. By using the turntable seat 6 fixed to the end of the fixed base 4 for support, as the output end of the third servo motor 61 drives the second wheel 62 to rotate, the second wheel 62 synchronously drives the C-shaped hardware parts clamped on the clamping plate 41 to tilt upward, so that the inner joint of the C-shaped hardware parts can be easily laser welded by the laser welding head 15, which plays the role of assisting in adjusting the angle to facilitate welding the inner joint.

[0035] The clamping plate 41 has two sides slidably connected to the adsorption racks 7 via three electric sliders; the adsorption rack 7 is fixed to an adsorption plate 71 at one end away from the clamping plate 41; a vacuum pump is installed inside the second wheel 62; the output end of the vacuum pump is fixed to a connecting pipe 72, and the connecting pipe 72 is connected to the adsorption plate 71 through the adsorption rack 7; when splicing the two horizontal plates of the C-shaped hardware accessory, the vertical plate is first fixed between the first clamping plate 42 and the second clamping plate 43, and then the two horizontal plates are placed at the adsorption plate 71 respectively. The vacuum pump is connected to the two adsorption plates 71 through two connecting pipes 72 and two adsorption racks 7. The vacuum pump works by vacuuming the two horizontal plates at the two adsorption plates 71. As the two three electric sliders drive the two adsorption racks 7 to slide on the clamping plate 41 respectively, the two adsorbed horizontal plates are spliced ​​on the sides of the vertical plate, which plays the role of adsorbing and splicing the two horizontal plates of the C-shaped hardware accessory.

[0036] Both sides of the first clamping plate 42 are fixed with support seats 8; the support seats 8 are located below the adsorption plate 71; when splicing the accessories of the C-shaped hardware, the two support seats 8 are fixed on both sides of the first clamping plate 42 respectively. The two support seats 8, together with the first clamping plate 42, can support the bottom of the spliced ​​C-shaped hardware accessories and improve the stability of welding of the C-shaped hardware.

[0037] The cross-sectional shape of the two support seats 8 is L-shaped; corner grooves 81 are provided on the two support seats 8; when the accessories of the C-shaped hardware are spliced ​​on the two support seats 8, the inner joint of the vertical plate and the two horizontal plates is easily blocked by the support seats 8, and the support seats 8 are easily welded together with the inner joint during the welding process. By opening corner grooves 81 on the support seats 8 directly below the inner joint, the support seats 8 can be prevented from being welded together with the C-shaped hardware during laser welding. The L-shaped support seats 8 can stably support the laser welding of the vertical plate and the two horizontal plates.

[0038] Working process: When laser welding irregularly shaped hardware parts in the shape of the letter C, the three hardware plates of the C-shaped hardware part are first assembled into a C-shape on the welding machine base 1, and the assembled hardware plates are fixed and limited. Then, the output end of the electric turntable 11 drives the telescopic frame 12 to rotate. The telescopic frame 12 can extend and retract at the output end of the electric turntable 11, so that the laser welding head 15 installed on the connecting component can approach the inner joint of the hardware plates. Since the inner joint of the C-shaped hardware part is relatively deep, at this time, the first electric slider drives the sliding frame 14 to slide out from the inner wall of the welding frame 13, adjusting the distance between the laser welding head 15 and the inner joint, so that the laser welding head 15 can fit against the inner joint of the C-shape for welding. The laser welding head 15 starts welding from the top of the inner joint of the C-shaped hardware part. As the telescopic frame 12 retracts, it drives the laser welding head 15 installed on the connecting component to weld. The laser welding head 15 slowly slides down, enabling laser welding of the entire inner seam of the C-shaped hardware, thus ensuring the efficiency of laser welding of irregularly shaped hardware. Simultaneously, the sliding frame 14 allows the laser welding head 15 to slide out, adapting to welding other irregularly shaped hardware parts. When laser welding the inner seam of the C-shaped hardware, the connecting frame 21 is fixed to the output end of the first servo motor 2. The rotation of the first servo motor 2 adjusts the vertical angle of the laser welding head 15. As the output end of the second servo motor 22 rotates the first wheel 23, the vertical angle of the welding frame 13 is adjusted, allowing the laser welding head 15 to fit snugly against the inner seam of the C-shaped hardware, improving the welding effect.

[0039] When the first electric slider drives the laser welding head 15 at the front end of the sliding frame 14 to slide out and fit the inner seam of the C-shaped hardware, the protrusion 34 slides along with the sliding frame 14 and presses against multiple sliding blocks 32 respectively. The protrusion 34 presses the sliding blocks 32 upward, and the sliding blocks 32 simultaneously press the first elastic element 33 to contract and trigger the contact 31 on the sensor 3. After the contact 31 is triggered, the sensor 3 sends an electrical signal to the main controller. The main controller adjusts the power of the laser welding machine. Each contact 31 corresponds to a set welding power. The closer the contact 31 is to the laser welding head 15, the higher the set welding power. As the sliding frame 14 extends out of the welding frame... The longer the length of 13, the greater the power of the laser welding machine, ensuring stable output power and welding effect. As the protrusion 34 slides with the sliding frame 14, the arc at the top of the protrusion 34 fits against the arc at the bottom of the sliding block 32, allowing the protrusion 34 to easily press the sliding block 32 upward. After sliding upward, the sliding block 32 presses the first elastic element 33 to contract and trigger the contact 31. The sensor 3 sends an electrical signal to control the output power of the laser welding machine. After the protrusion 34 passes the sliding block 32, the first elastic element 33 uses its elasticity to press the sliding block 32 back to its original position, thus automatically adjusting the output power of the laser welding machine.

[0040] When laser welding C-shaped hardware, multiple hardware plates need to be assembled into a C-shape beforehand. A vertical plate is first placed on the clamping plate 41 above the fixing base 4, and positioned on the upper surface of the first clamping plate 42. As the second electric slider moves the second clamping plate 43 downwards, the second clamping plate 43, in conjunction with the first clamping plate 42, clamps the vertical plate. Then, the two horizontal plates are joined and fixed to the ends of the vertical plate, allowing for laser welding of the inner joint of the C-shaped hardware. This process assists in the assembly of C-shaped hardware components. When assembling the hardware components, the vertical plate is placed in the groove of the first clamping plate 42. Pushing the vertical plate presses the two pressing blocks 5 on the first clamping plate 42 and the second clamping plate 43 to slide. The two second elastic elements 51 elastically contract, and the second clamping plate 43 slides down, causing the vertical plate to be stuck in its groove. After releasing the push of the vertical plate, the two second elastic elements 51 elastically reset and press the pressing blocks 5 to slide. The two pressing blocks 5 respectively cooperate with the inner walls of the first clamping plate 42 and the second clamping plate 43 to clamp the vertical plate, which facilitates the splicing and welding of the C-shaped hardware components.

[0041] When laser welding the assembled C-shaped hardware parts, the angle of the splicing is difficult to match with the laser welding head 15 for laser welding. The turntable seat 6 is fixed to the end support of the fixed seat 4. As the output of the third servo motor 61 drives the second wheel 62 to rotate, the second wheel 62 synchronously drives the C-shaped hardware parts clamped on the clamping plate 41 to tilt upwards, making the inner seam of the C-shaped hardware parts easier for the laser welding head 15 to perform laser welding. This assists in adjusting the angle to facilitate welding the inner seam. When splicing the two horizontal plates of the C-shaped hardware parts, the vertical plate is first fixed between the first clamping plate 42 and the second clamping plate 43. Then, the two horizontal plates are placed on the adsorption plates 71 respectively. The vacuum pump is connected to the two adsorption plates 71 through two connecting pipes 72 and two adsorption frames 7. The vacuum pump works by vacuuming the two horizontal plates from the two adsorption plates 71. As the two third electric sliders respectively... The two suction holders 7 slide on the clamping plate 41, so that the two suctioned horizontal plates are spliced ​​on the sides of the vertical plate, which serves to suction and splice the two horizontal plates of the C-shaped hardware parts. When splicing the C-shaped hardware parts, the two support seats 8 are fixed on both sides of the first clamping plate 42. The two support seats 8, together with the first clamping plate 42, can support the bottom of the spliced ​​C-shaped hardware parts and improve the stability of the welding of the C-shaped hardware parts. When the C-shaped hardware parts are spliced ​​on the two support seats 8, the inner joint of the vertical plate and the two horizontal plates is easily blocked by the support seats 8. During the welding process, the support seats 8 are easily welded to the inner joint. By opening a corner groove 81 on the support seat 8 directly below the inner joint, the support seat 8 can be prevented from being welded to the C-shaped hardware parts during laser welding. The L-shaped support seat 8 can stably support the laser welding of the vertical plate and the two horizontal plates.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hardware laser welding machine characterized by: The utility model provides a welding machine base (1), one side end of welding machine base (1) is fixedly connected with electric turntable (11), the output of electric turntable (11) is fixedly connected with telescopic frame (12), the outside of telescopic frame (12) is provided with welding frame (13), the inner wall of welding frame (13) is slidably connected with sliding frame (14) through No. 1 electric sliding block, the end of sliding frame (14) is fixedly connected with laser welding head (15), the connection assembly is arranged between telescopic frame (12) and welding frame (13), and the connection assembly is used for adjusting the angle of laser welding of laser welding head (15). The connection assembly includes a servo motor (2), a connecting frame (21), a second servo motor (22) and a first wheel disc (23), the servo motor (2) is fixedly connected to the outer wall of the telescopic frame (12), the connecting frame (21) is fixedly connected to the output end of the servo motor (2), the second servo motor (22) is fixedly connected to the outer wall of the end of the connecting frame (21) away from the servo motor (2), and the first wheel disc (23) is fixedly connected to the output end of the second servo motor (22), the first wheel disc (23) is rotatably connected to the inner wall of the connecting frame (21), and the outer wall of the first wheel disc (23) is fixedly connected to the outer wall of the welding frame (13). The top end of the welding frame (13) is fixedly connected with a sensor (3), a plurality of contacts (31) are mounted on the inner wall of the sensor (3), a sliding block (32) is slidably connected to the inner wall of the sensor (3) below the contacts (31), a first elastic member (33) is fixedly connected between the inner wall of the sensor (3) and the top end of the sliding block (32), and a protrusion (34) is fixedly connected to the upper surface of the sliding block (32) close to the sliding block (32). The top end of the welding machine base (1) and the side away from the electric turntable (11) are fixedly connected with a fixing seat (4), the top of the fixing seat (4) is provided with a clamping plate (41), the bottom outer wall of the clamping plate (41) is fixedly connected with a first clamping plate (42), and the outer wall of the clamping plate (41) and above the first clamping plate (42) are slidably connected with a second clamping plate (43) through a second electric sliding block.

2. The hardware laser welding machine of claim 1, wherein: The bottom end of the plurality of sliding blocks (32) is provided with a circular arc, and the top end of the protrusion (34) is provided with a circular arc.

3. The hardware laser welding machine of claim 1, wherein: The opposite surfaces of the first clamping plate (42) and the second clamping plate (43) are provided with grooves, a pressing block (5) is slidably connected to the grooves, and the outer wall of the pressing block (5) is fixedly connected with a second elastic member (51).

4. The hardware laser welding machine of claim 1, wherein: The end of the fixing seat (4) is fixedly connected with a turntable seat (6), the outer wall of the turntable seat (6) is fixedly connected with a third servo motor (61), the output end of the third servo motor (61) is fixedly connected with a second wheel disc (62), the second wheel disc (62) is rotatably connected to the inner wall of the turntable seat (6), and the outer wall of the second wheel disc (62) is fixedly connected to the outer wall of the clamping plate (41).

5. A hardware laser welding machine according to claim 4, characterized in that: Both sides of the clamping plate (41) are slidably connected with the suction frame (7) through the No. 3 electric sliding block; one end away from the clamping plate (41) of the suction frame (7) is fixedly connected with the suction disc (71); the inside of the No. 2 wheel disc (62) is provided with a vacuum pump; the output end of the vacuum pump is fixedly connected with the connecting pipe (72), and the connecting pipe (72) is connected with the suction disc (71) in communication through the suction frame (7).

6. A hardware laser welding machine according to claim 5, characterized in that: Both sides of the outer wall of the No. 1 clamping plate (42) are fixedly connected with the support seat (8); the support seat (8) is located below the suction disc (71).

7. A hardware laser welding machine according to claim 6, characterized in that: The cross section shape of the two support seats (8) is L-shaped; corner grooves (81) are formed in the two support seats (8).

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