High-voltage power hardware laser butt welding device

Abstract

The application relates to the technical field of laser welding of electric power fittings, in particular to a high-voltage electric power fitting laser butt welding device, which comprises a machine body and an air suction pump, the outer side of the top of the machine body is fixedly installed with a circular sliding rail, the inner side of the circular sliding rail is slidably installed with two sliding seats, the top of each of the two sliding seats is fixedly installed with a guide rail frame, the outer side of the guide rail frame is slidably installed with an electric guide rail, and the bottom of the electric guide rail is fixedly installed with an electric control telescopic rod; the hydraulic dot matrix type self-adaptive positioning seat is cooperatively controlled with a dot matrix clamp and a control panel, the actual shape of the high-voltage electric power fitting can be self-adaptively formed into a positioning groove and clamped, a special tooling mold is not needed to be replaced, the welding processing of different specifications and special-shaped fittings can be adapted, the mold development cost is effectively reduced, and the equipment application range and production change efficiency are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of laser welding equipment for power fittings, specifically to a laser butt welding device for high-voltage power fittings. Background Technology

[0002] High-voltage power fittings are metal accessories that connect and assemble various devices in high-voltage power systems, serving to transmit mechanical and electrical loads and provide protection. They are hailed as the "connection guardians" ensuring the stable operation of the transmission network and the "steel skeleton" of the power grid. They are found throughout the entire transmission link from power plants to users, and are mainly classified by function into suspension clamps, tension clamps, connecting fittings, splicing fittings, and protective fittings. They work together to achieve conductor suspension and fixation, mechanical and electrical connections, and protection against vibration and wear. Laser welding is a highly efficient and precise welding method that uses a high-energy-density laser beam as a heat source. The welding process is heat conduction type; the laser radiation heats the surface of the workpiece, and the surface heat diffuses inward through heat conduction. By controlling parameters such as the width, energy, peak power, and repetition frequency of the laser pulse, the workpiece melts, forming a specific molten pool.

[0003] High-voltage power fittings are important accessories for connecting and assembling high-voltage power systems, and they play a crucial role. Since some power fittings need to be welded, and due to the wide variety of shapes and sizes of power fittings, existing laser welding equipment is insufficient to meet the requirements, requiring the development of different fixtures and tooling. Furthermore, the fumes generated during the welding process can obstruct the welding line of sight and indirectly affect the welding quality, thereby impacting production efficiency. Based on this, a laser butt welding device for high-voltage power fittings is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a laser butt welding device for high-voltage power fittings to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-voltage power fitting laser butt welding device, comprising a body and a vacuum pump. A circular slide rail is fixedly installed on the outer side of the top of the body. Two slide blocks are slidably installed on the inner side of the circular slide rail. A guide rail frame is fixedly installed on the top of the two slide blocks. An electric guide rail is slidably installed on the outer side of the guide rail frame. An electrically controlled telescopic rod is fixedly installed at the bottom of the electric guide rail. A laser welding head is installed at the output end of the electrically controlled telescopic rod. Two vision acquisition cameras are fixedly installed at the bottom of the guide rail frame. A servo motor is fixedly installed on the outer side of the bottom end of the guide rail frame via a bracket. A recessed groove is formed on the top of the body. An adaptive dot matrix positioning seat is installed on the inner side of the recessed groove. Two support slides are fixedly installed on the top of the body. A flipping mechanism is installed on the opposite side of the two support slides. An adaptive dot matrix clamp is installed on the inner side of the flipping mechanism.

[0006] The adaptive dot matrix positioning seat includes an equalization box, which is fixedly installed at the top of the internal cavity of the machine. A second support cylinder is fixedly installed inside the equalization box. The bottom end of the second support cylinder has several equalization holes. A sealing piston ring is sealed to the inner side of the second support cylinder. A dot matrix hollow rod is fixedly fitted to the inner side of the sealing piston ring. A friction ring is fixedly installed at the top of the dot matrix hollow rod. A return spring is fitted to the outer side of the bottom end of the dot matrix hollow rod. A sealing piston ring is sealed to the inner side of the bottom end of the dot matrix hollow rod. A flow-guiding hollow rod is fixedly fitted to the inner side of the sealing piston ring. A flow-guiding cone is fixedly installed at the top of the flow-guiding hollow rod. A funnel cover is fixedly installed at the bottom of the equalization box. The flow-guiding hollow rod passes through the equalization box and connects to the inner side of the funnel cover. A solenoid valve is connected to one end of the top of the equalization box, and a liquid storage box is connected to the other end of the solenoid valve. An exhaust valve is connected to one side of the top of the liquid storage box.

[0007] The adaptive dot matrix fixture includes two sliding rods, and a fixture shell is slidably mounted on the opposite sides of the two sliding rods. A clamping telescopic column is fixedly mounted on the opposite sides of the fixture shell. Several support cylinders are fixedly mounted inside the fixture shell. A sealing piston is slidably and sealingly mounted on the inner side of the support cylinder. A dot matrix column is fixedly mounted on one side of the sealing piston, and a return spring is fixedly mounted on the other side of the sealing piston. Several equalization holes are opened inside one end of the support cylinder.

[0008] Preferably, the two slide blocks are arranged diagonally on the top of the circular slide rail, and the two visual acquisition cameras are symmetrically and evenly distributed on the bottom of the guide rail frame, with the distance between the two visual acquisition cameras being greater than the size of the sinkhole.

[0009] Preferably, the output end of the servo motor is connected to a drive gear, and a gear ring is fixedly sleeved on the outer side of the circular slide rail, with the outer side of the drive gear meshing with the outer side of the gear ring.

[0010] Preferably, the top end of the dot matrix hollow rod slides through the machine body and extends to the inner side of the sinking trough; the second equalization hole is evenly distributed circumferentially inside the bottom end of the second support cylinder; the top end of the second return spring is fixedly installed on the top of the inner cavity of the machine body; the bottom end of the second return spring is fixedly installed on the top of the first sealing piston ring; the ends of the second support cylinder are respectively fixedly installed on the opposite sides of the machine body and the equalization box; the guide cone is sealed inside the dot matrix hollow rod; the second support cylinder is evenly distributed linearly in a rectangle inside the equalization box; the inside of the equalization box is filled with hydraulic oil; and the liquid storage box is fixedly installed on the top of the inner cavity of the machine body.

[0011] Preferably, the input end of the air pump is connected to an air extraction pipe, the other end of the air extraction pipe is connected to the top of the inner cavity of the machine body, the bottom end of the funnel cover is connected to the bottom of the inner cavity of the machine body, and the bottom end of one side of the machine body is connected to a drain valve.

[0012] Preferably, the two supporting carriages are symmetrically and evenly distributed on both sides of the sinking trough. The flipping mechanism includes a flipping frame, and flipping rollers are installed on all four sides of the flipping frame. The flipping rollers are located on the outer side of the sinking trough. Support feet are fixedly installed at the four corners of the top and bottom of the flipping frame. A flipping shaft is fixedly installed on the opposite side of the flipping frame. A movable bearing is sleeved on the outer side of the flipping shaft. The movable bearing is sleeved on the inner side of the supporting carriage. A flipping plate is fixedly installed at the opposite end of the flipping shaft. A connecting rod is fixedly installed on the outer side of the other end of the flipping plate. A flipping telescopic rod is movably sleeved on the outer side of the connecting rod through a collar. The other end of the flipping telescopic rod is hinged to the top of the machine body.

[0013] Preferably, the opposite ends of the clamping telescopic column are fixedly installed on the opposite side of the flipping frame, the two ends of the slide rod are fixedly installed on the inner side of the flipping frame, the dot matrix column movably penetrates the clamp housing and extends to the outer side of the clamp housing, the opposite ends of the dot matrix column are provided with flexible heads, the end of the return spring away from the sealing piston is fixedly installed inside the support cylinder, both ends of the support cylinder are fixedly installed on the inner wall of the clamp housing, the equalizing hole is evenly distributed in a circle inside the support cylinder, and the inside of the clamp housing is filled with hydraulic oil.

[0014] Preferably, a control panel is installed on the front of the machine body.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The equipment uses a hydraulic dot matrix adaptive positioning seat and dot matrix clamp in conjunction with the control panel for coordinated control. It can adaptively form positioning grooves and fit and clamp according to the actual shape of high voltage power fittings. There is no need to change special tooling molds. It can adapt to the welding and processing of different specifications and irregular shapes of fittings, effectively reduce mold development costs, greatly improve the applicability of the equipment and production changeover efficiency, realize moldless adaptive clamping, and has strong versatility and low production cost.

[0016] 2. Relying on the vision acquisition and path planning unit, the system automatically identifies weld gaps and generates the optimal welding trajectory, replacing manual alignment and seam finding. Combined with the fully automatic flipping mechanism, it realizes continuous double-sided welding of the workpiece. The entire process is precisely linked and controlled by the control system to regulate each movement and welding mechanism. The weld formation is uniform and the alignment accuracy is high, which completely solves the problems of large deviation, poor consistency and excessive manual intervention in traditional welding, and significantly improves welding quality and production efficiency.

[0017] 3. The equipment integrates a negative pressure water circulation dust removal system, which can extract and filter welding fumes in real time, preventing fumes from obscuring the vision lens and affecting welding accuracy, while meeting environmental protection production requirements; it is equipped with a whole machine operation monitoring and fault early warning unit to monitor hydraulic, negative pressure, motion and laser conditions in real time, and can promptly identify abnormalities and issue early warnings, effectively avoiding equipment failures and processing defects, and ensuring long-term stable, safe and automated operation of the equipment. Attached Figure Description

[0018] Figure 1 This is a front-view stereoscopic structural diagram of the present invention.

[0019] Figure 2 This is a rear-view stereoscopic view of the structure of the present invention.

[0020] Figure 3 This is a schematic diagram of the front cross-sectional structure of the present invention.

[0021] Figure 4 This is a top-view cross-sectional structural diagram of the present invention.

[0022] Figure 5 For the present invention Figure 1 Enlarged structural diagram at point A in the middle.

[0023] Figure 6 For the present invention Figure 3 Enlarged structural diagram at point B.

[0024] Figure 7 For the present invention Figure 3 Enlarged structural diagram at point C.

[0025] Figure 8 For the present invention Figure 3 Enlarged structural diagram at point D.

[0026] Figure 9 For the present invention Figure 3 Enlarged structural diagram at point E in the middle.

[0027] In the diagram: 1. Main body; 2. Control panel; 3. Air pump; 4. Air extraction pipe; 5. Circular slide rail; 6. Slide seat; 7. Servo motor; 8. Drive gear; 9. Guide rail frame; 10. Electric guide rail; 11. Tilting telescopic rod; 12. Gear ring; 13. Drain valve; 14. Electrically controlled telescopic rod; 15. Laser welding head; 16. Adaptive dot matrix fixture; 1601. Fixture housing; 1602. Clamping telescopic column; 1603. Slide rod; 1604. Dot matrix column; 1605. Sealing piston one; 1606. Return spring one; 1607. Support cylinder one; 1608. Equalizing hole one; 17. Adaptive dot matrix positioning seat; 1701. Equalizing box; 170 2. Support cylinder II; 1703. Dot matrix hollow rod; 1704. Return spring II; 1705. Sealing piston ring I; 1706. Flow guide hollow rod; 1707. Friction ring; 1708. Equalization hole II; 1709. Sealing piston ring II; 1710. Flow guide cone; 1711. Solenoid valve; 1712. Exhaust valve; 1713. Liquid storage box; 18. Tilting mechanism; 1801. Tilting frame; 1802. Tilting shaft; 1803. Movable bearing; 1804. Tilting plate; 1805. Connecting rod; 1806. Support foot; 19. Support slide; 20. Tilting roller; 21. Sinking trough; 22. Funnel cover; 23. Visual acquisition camera. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figures 1-9 This invention provides a technical solution: a high-voltage power fitting laser butt welding device, comprising a body 1 and a vacuum pump 3. A circular slide rail 5 is fixedly installed on the outer side of the top of the body 1. Two slide blocks 6 are slidably installed on the inner side of the circular slide rail 5. A guide rail frame 9 is fixedly installed on the top of the two slide blocks 6. An electric guide rail 10 is slidably installed on the outer side of the guide rail frame 9. An electrically controlled telescopic rod 14 is fixedly installed on the bottom of the electric guide rail 10. A laser welding head 15 is installed at the output end of the electrically controlled telescopic rod 14. Two vision acquisition cameras 23 are fixedly installed on the bottom of the guide rail frame 9. A servo motor 7 is fixedly installed on the outer side of the bottom end of the guide rail frame 9 through a bracket. A recessed groove 21 is opened on the top of the body 1. An adaptive dot matrix positioning seat 17 is installed on the inner side of the recessed groove 21. Two support slides 19 are fixedly installed on the top of the body 1. A flipping mechanism 18 is installed on the opposite side of the two support slides 19. An adaptive dot matrix clamp 16 is installed on the inner side of the flipping mechanism 18.

[0030] The adaptive dot matrix positioning base 17 includes an equalization box 1701, which is fixedly installed on the top of the inner cavity of the machine body 1. A second support cylinder 1702 is fixedly installed inside the equalization box 1701. Several equalization holes 1708 are opened at the bottom end of the second support cylinder 1702. A sealing piston ring 1705 is sealed to the inner side of the second support cylinder 1702. A dot matrix hollow rod 1703 is fixedly sleeved inside the sealing piston ring 1705. A friction ring 1707 is fixedly installed on the top of the dot matrix hollow rod 1703. A return spring 1704 is sleeved on the outer side of the bottom end of the dot matrix hollow rod 1703. A sealing piston ring 1709 is fitted to the inner side of the bottom of 1703. A flow guide hollow rod 1706 is fixedly fitted to the inner side of the sealing piston ring 1709. A flow guide cone 1710 is fixedly installed on the top of the flow guide hollow rod 1706. A funnel cover 22 is fixedly installed on the bottom of the equalization box 1701. The flow guide hollow rod 1706 is fixedly inserted through the equalization box 1701 and connected to the inner side of the funnel cover 22. A solenoid valve 1711 is connected to one end of the top of the equalization box 1701. A liquid storage box 1713 is connected to the other end of the solenoid valve 1711. An exhaust valve 1712 is connected to one side of the top of the liquid storage box 1713.

[0031] The adaptive dot matrix fixture 16 includes two slide rods 1603. Fixture housings 1601 are slidably mounted on opposite sides of the two slide rods 1603. Clamping telescopic columns 1602 are fixedly mounted on opposite sides of the fixture housings 1601. Several support cylinders 1607 are fixedly mounted inside the fixture housings 1601. Sealing pistons 1605 are slidably and sealingly mounted on the inner side of the support cylinders 1607. Dot matrix columns 1604 are fixedly mounted on one side of the sealing pistons 1605. A return spring 1606 is fixedly mounted on the other side of the sealing pistons 1605. Several equalization holes 1608 are opened inside one end of the support cylinders 1607.

[0032] The working principle of the above technical solution is as follows: During use, the operator places the assembled hardware to be welded on top of the adaptive dot matrix positioning seat 17 and initiates the pressing process via the control panel 2. After pressing, the hardware presses down on the dot matrix hollow rod 1703, causing it to move downwards. At this time, the solenoid valve 1711 opens, and the pressing down dot matrix hollow rod 1703 drives the sealing piston ring 1705 to compress the hydraulic oil. Excess hydraulic oil flows through the equalization hole 1708 into the equalization box 1701. The pressurized hydraulic oil inside the equalization box 1701 is then introduced into the reservoir box 1713 through the solenoid valve 1711. After pressing, the dot matrix array of the dot matrix hollow rod 1703 shows the groove where the hardware was pressed down. Then, the solenoid valve 1711 closes, and the dot matrix hollow rod... Under negative pressure, piston ring 1703 and sealing piston ring 1705 maintain their relative positions. Then, the operator places the metal to be welded at the slot and activates the adaptive dot matrix clamp 16 to clamp it. The clamping telescopic column 1602 extends, causing the clamp housings 1601 to move closer together. The clamps on opposite sides of the dot matrix columns 1604 contact the hardware, and those in contact with the hardware retract under pressure. The dot matrix columns 1604 not in contact with the hardware extend under the equalizing pressure of the hydraulic oil. At this time, sealing piston ring 1605 compresses the return spring 1606 and guides it into the clamp housing 1601 through the equalizing hole 1608, connecting the equalizing hole 1608 in the unpressurized clamping telescopic column 1602. This allows the sealing piston ring 1605 to extend through the hydraulic oil, causing the dot matrix columns... The movement of column 1604 causes the dot matrix column 1604 to clamp the outside of the fitting in a dot matrix array, and then clamps the telescopic column 1602 in a fixed position. At this time, the servo motor 7 starts and drives the drive gear 8 to rotate. Through meshing with the gear ring 12, it causes the guide rail frame 9 and slide block 6 to rotate under the limit of the circular slide rail 5, adjusting the position of the electric guide rail 10. Meanwhile, the visual acquisition camera 23 acquires the image of the position where the fitting needs to be welded. After calculation, the welding path is determined. The electric guide rail 10 actively moves outside the guide rail frame 9, driving the electrically controlled telescopic rod 14 and the laser welding head 15 to move, and then moves to the gap position where the fitting needs to be welded. Then the electrically controlled telescopic rod 14 extends, causing the laser welding head 15 to approach the welding position. Then the laser welding head 15 is activated, and the laser welding head 15 is activated to weld the fitting. Welding is performed on the seams to complete the welding of the fittings. After the top welding is completed, the flipping mechanism 18 is activated to flip the adaptive dot matrix clamp 16 and the fittings, and then weld the other side. The above welding steps are repeated. After welding, the clamping telescopic column 1602 retracts, causing the dot matrix column 1604 to contact the limit of the fittings, and then it is released from the clamp. After the operator removes it, a fitting of the same specification is placed down for the next welding operation. If it is necessary to change to a different specification of fitting, the solenoid valve 1711 and the exhaust valve 1712 are opened, the negative pressure of the sealing piston ring 1705 is released, and the return spring 1704 is reset, causing the hydraulic oil inside the reservoir 1713 to flow back, causing the multiple dot matrix hollow rods 1703 to reset, and then the slot alignment of the next fitting is performed.The overall welding efficiency is high, achieving fully automated welding. Furthermore, the equipment can adapt to welding operations on a wide range of metal sizes and specifications, reducing the need for mold development and lowering capital requirements. One machine can handle multiple welding operations, increasing usability and indirectly improving efficiency.

[0033] In another implementation scheme, such as Figures 1-4 As shown, two slide blocks 6 are arranged diagonally on the top of the circular slide rail 5, and two visual acquisition cameras 23 are symmetrically and evenly distributed on the bottom of the guide rail frame 9. The distance between the two visual acquisition cameras 23 is greater than the size of the sink trough 21.

[0034] The slide block 6 slides on the inner side of the circular slide rail 5 via ball bearings, undertaking the work of sliding support and providing support for the guide rail frame 9. The visual acquisition camera 23 acquires images outside the movement trajectory of the electric guide rail 10, while the sinking groove 21 tests and limits the size and specifications of the overall hardware, making it easy for operators to intuitively determine the required hardware specifications.

[0035] In another implementation scheme, such as Figures 1-8 As shown, the output end of the servo motor 7 is connected to the drive gear 8, and the outer side of the circular slide rail 5 is fixedly sleeved with a gear ring 12. The outer side of the drive gear 8 is meshed with the outer side of the gear ring 12.

[0036] The drive gear 8 meshes with the gear ring 12, and the rotation of the servo motor 7 causes the slide 6 and the guide rail 9 to rotate under the reaction force, realizing the circumferential movement of the electric guide rail 10. With the support movement of the electric guide rail 10, a certain amount of welding can be performed within the circumferential range of the hardware, covering the circumferential surface, which increases the overall structural mobility.

[0037] In another implementation scheme, such as Figures 1-9 As shown, the top end of the dot matrix hollow rod 1703 slides through the body 1 and extends to the inner side of the sink trough 21. The second equalization hole 1708 is evenly distributed in a circle inside the bottom end of the second support cylinder 1702. The top end of the second return spring 1704 is fixedly installed on the top of the inner cavity of the body 1. The bottom end of the second return spring 1704 is fixedly installed on the top of the sealing piston ring 1705. The ends of the second support cylinder 1702 are respectively fixedly installed on the opposite sides of the body 1 and the equalization box 1701. The guide cone 1710 is sealed and sleeved inside the dot matrix hollow rod 1703. The second support cylinder 1702 is evenly distributed in a rectangular linear pattern inside the equalization box 1701. The inside of the equalization box 1701 is filled with hydraulic oil. The reservoir box 1713 is fixedly installed on the top of the inner cavity of the body 1.

[0038] After pressing, the hardware presses down the hollow rod 1703 in the dot matrix, causing it to move downwards. At this time, the solenoid valve 1711 opens, and the pressed hollow rod 1703 drives the sealing piston ring 1705 to compress the hydraulic oil. The excess hydraulic oil passes through the equalization hole 1708 into the equalization box 1701. The hydraulic oil under pressure inside the equalization box 1701 is then introduced into the reservoir box 1713 through the solenoid valve 1711. After pressing, the dot matrix array of the hollow rod 1703 appears in the groove where the hardware was pressed down. Then the solenoid valve 1711 closes. At this time, the hollow rod 1703 and the sealing piston ring 1705 maintain their relative positions under the action of negative pressure, thereby stabilizing the groove of the structure and facilitating use.

[0039] In another implementation scheme, such as Figures 1-4 As shown, the input end of the vacuum pump 3 is connected to the vacuum pipe 4, the other end of the vacuum pipe 4 is connected to the top of the inner cavity of the machine body 1, the bottom end of the funnel cover 22 is connected to the bottom of the inner cavity of the machine body 1, and the bottom end of one side of the machine body 1 is connected to the drain valve 13.

[0040] During operation, the air pump 3 is activated, drawing negative pressure into the interior of the machine body 1 through the air extraction pipe 4. Water is added inside the machine body 1, submerging the bottom of the funnel hood 22. Airflow enters through the dot matrix hollow rod 1703, extracting welding dust particles and fumes. The airflow is then guided into the inside of the funnel hood 22 through the guide hollow rod 1706, and then guided underwater through the bottom of the funnel hood 22. The water flow cleans and intercepts the dust particles. The airflow is then discharged to the airflow treatment structure through the air extraction pipe 4 and the air pump 3, increasing environmental friendliness. The bottom air extraction structure, combined with the metal adaptive slot, can effectively extract welding fumes, improving the equipment's performance. This ensures the efficiency and imaging quality of the visual acquisition camera 23, indirectly guaranteeing the operational effect and increasing environmental benefits.

[0041] In another implementation scheme, such as Figures 1-9 As shown, two support carriages 19 are symmetrically and evenly distributed on both sides of the sinking trough 21. The flipping mechanism 18 includes a flipping frame 1801. Flipping rollers 20 are installed on all four sides of the flipping frame 1801. The flipping rollers 20 are located on the outside of the sinking trough 21. Support feet 1806 are fixedly installed at the four corners of the top and bottom of the flipping frame 1801. Flipping shafts 1802 are fixedly installed on opposite sides of the flipping frame 1801. Movable bearings 1803 are sleeved on the outside of the flipping shafts 1802. The movable bearings 1803 are sleeved on the inside of the support carriages 19. A flipping plate 1804 is fixedly installed at the opposite end of the flipping shafts 1802. A connecting rod 1805 is fixedly installed on the outside of the other end of the flipping plate 1804. A flipping telescopic rod 11 is movably sleeved on the outside of the connecting rod 1805 through a collar. The other end of the flipping telescopic rod 11 is hinged to the top of the machine body 1.

[0042] When flipping, the retraction of the flipping telescopic rod 11 causes the connecting rod 1805 and the flipping plate 1804 to be flipped upward under force, and drives the flipping shaft 1802 to rotate. At this time, the flipping shaft 1802 causes the flipping frame 1801 to rotate, and the outer side of the flipping frame 1801 moves in contact with the top of the machine body 1 through the flipping roller 20, thereby causing the flipping frame 1801 to flip and the flipping shaft 1802 to move upward. The movable bearing 1803 slides and moves upward under the limit of the support slide 19. At this time, the flipping telescopic rod 11, supported by the connecting rod 1805 and the rotating and hinged seat, causes the flipping telescopic rod 11 to rotate to assist the flipping operation. After shortening, the flipping plate 1804 flips to another position. After the flipping frame 1801 flips, the support foot 1806 can deform to contact the top of the machine body 1 for support, thereby causing the adaptive dot matrix fixture 16 to drive the hardware to flip, realizing flipping welding. The whole structured operation is realized, which is easy to adapt to automated operation.

[0043] In another implementation scheme, such as Figures 1-6 As shown, the opposite ends of the clamping telescopic column 1602 are fixedly installed on the opposite side of the flip frame 1801, the two ends of the slide rod 1603 are fixedly installed on the inner side of the flip frame 1801, the dot matrix column 1604 moves through the clamp housing 1601 and extends to the outer side of the clamp housing 1601, the opposite ends of the dot matrix column 1604 are provided with flexible heads, the end of the return spring 1606 away from the sealing piston 1605 is fixedly installed inside the support cylinder 1607, both ends of the support cylinder 1607 are fixedly installed on the inner wall of the clamp housing 1601, the equalization hole 1608 is evenly distributed in a circle inside the support cylinder 1607, and the inside of the clamp housing 1601 is filled with hydraulic oil.

[0044] When the adaptive dot matrix clamp 16 is activated, the clamping telescopic column 1602 extends, causing the clamp housings 1601 to move closer together. The clamps on opposite sides of the dot matrix columns 1604 contact the hardware, and the columns in contact with the hardware retract under pressure. The dot matrix columns 1604 not in contact with the hardware extend under the pressure equalization effect of hydraulic oil. At this time, the sealing piston 1605 compresses the return spring 1606 and guides it into the clamp housing 1601 through the equalization hole 1608, so that the equalization hole 1608 in the unpressurized clamping telescopic column 1602 is connected. The sealing piston 1605 is pushed out through the hydraulic oil, causing the dot matrix columns 1604 to move. In this way, the dot matrix columns 1604 are clamped on the outside of the hardware in a dot matrix array, realizing the adaptive clamp and structural stability, and indirectly increasing the use effect.

[0045] In another implementation scheme, such as Figures 1-4 As shown, a control panel 2 is mounted on the front of the main body 1.

[0046] The control panel 2 of this device is the core control center of the equipment, integrating motion control, parameter adjustment, visual calculation, status monitoring, and adaptive regulation functions. It can realize moldless, fully automatic, adaptive laser butt welding of high-voltage power fittings, adapt to the processing of various specifications of fittings, and is equipped with auxiliary components such as the UN dry-start solenoid valve 1711 with corresponding functional descriptions to improve the hardware and structural functions. Its functional units and integrated control system are as follows: I. Core Functional Units ① The machine start / stop and parameter setting unit is responsible for starting and stopping the equipment and switching the operation mode. It can preset process parameters such as laser power, welding speed, and clamping force, and store welding parameters for multiple specifications of fittings, so as to realize one machine for multiple uses and save the cost of customized molds.

[0047] ② The adaptive dot matrix positioning control unit controls the hydraulic oil circuit of the positioning seat, the solenoid valve 1711 and the exhaust valve 1712, and automatically completes the fitting pressing and forming, hydraulic equalization and pressure adjustment, negative pressure locking and shaping and pressure relief and reset. It adaptively matches the shape of the fitting to ensure the accuracy of the welding positioning reference.

[0048] ③ The adaptive dot matrix clamping control unit controls the hydraulically driven clamping mechanism. Relying on the hydraulic balance structure, the dot matrix chuck adaptively conforms to the contours of irregularly shaped and differently sized hardware, achieving uniform clamping across the entire area, preventing offset and clamping damage, and can automatically retract for unloading.

[0049] ④ The visual acquisition and path planning unit connects to the visual camera, automatically acquires images of the fitting welds, identifies the joint gaps, and calculates the optimal welding trajectory through algorithms, providing precise data support for the movement of the laser welding mechanism and ensuring the consistency of weld formation.

[0050] ⑤ The laser welding execution control unit coordinates the servo drive, linear feed and laser welding mechanism, precisely controls the welding head angle, position and feed stroke, controls the laser start and stop and continuous welding operation, and completes single-sided precise butt welding of hardware.

[0051] ⑥ The workpiece flipping control unit controls the flipping telescopic rod 11 and the flipping frame 1801 to operate in conjunction, so as to realize the overall stable flipping and positioning of the hardware without manual disassembly and assembly, support double-sided continuous automated welding, and improve welding integrity and work efficiency.

[0052] ⑦ The negative pressure control unit for fume purification controls the air pump 3 and the water purification system, adjusts the negative pressure inside the equipment cavity, accurately extracts welding fumes and particulate matter, and discharges them after underwater filtration and purification, ensuring clear visual imaging and meeting environmental protection operation standards.

[0053] ⑧ System reset and specification switching unit, supports one-key reset of the whole machine, zeroing of tooling status, release of mechanism negative pressure lock, quick completion of positioning and clamping structure reset, and adaptability to switching of multi-category and batch hardware welding production.

[0054] ⑨ Operation monitoring and fault early warning unit: It monitors the hydraulic pressure, negative pressure value, movement stroke, laser working condition and circuit status of the equipment in real time. It can identify problems such as jamming, abnormal pressure, welding failure and other issues and issue early warnings to ensure the safe and stable operation of the equipment.

[0055] II. Integrated Control System: Control Panel 2 integrates multi-module collaborative logic to form an integrated fully automatic control system, comprising three core subsystems: ① The hydraulic adaptive control subsystem coordinates the positioning and clamping dual hydraulic circuits to achieve pressure balance, negative pressure locking, adaptive shaping, and automatic reset closed-loop control, eliminating the need for manual fine-tuning and automatically adapting to various hardware sizes and shapes.

[0056] ② The visual intelligent welding subsystem integrates image acquisition, trajectory calculation, motion control and laser welding control to achieve fully intelligent operation of "recognition-planning-welding", replacing manual alignment and greatly improving welding accuracy and consistency.

[0057] ③ The fully automated cyclic operation subsystem integrates the entire process sequence of positioning, clamping, welding, flipping, unloading, resetting, and dust removal, realizing unmanned cyclic operation after material loading. The precise linkage of each mechanism effectively improves production efficiency.

[0058] III. Overall Control Features: The control panel 2 has core advantages such as moldless adaptive clamping, visual intelligent weld bead planning, double-sided fully automatic welding, closed-loop fume purification, and full-condition safety protection. It is compatible with most high-voltage power fitting welding operations, reducing costs and increasing efficiency, and significantly improving the automation and versatility of the equipment.

[0059] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser butt welding device for high-voltage power fittings, comprising a body (1) and an air pump (3), characterized in that: A circular slide rail (5) is fixedly installed on the outer side of the top of the body (1). Two slide blocks (6) are slidably installed on the inner side of the circular slide rail (5). A guide rail frame (9) is fixedly installed on the top of the two slide blocks (6). An electric guide rail (10) is slidably installed on the outer side of the guide rail frame (9). An electrically controlled telescopic rod (14) is fixedly installed on the bottom of the electric guide rail (10). A laser welding head (15) is installed at the output end of the electrically controlled telescopic rod (14). Two laser welding heads (15) are fixedly installed on the bottom of the guide rail frame (9). A visual acquisition camera (23) is provided. A servo motor (7) is fixedly installed on the outer side of the bottom end of the guide rail frame (9) by a bracket. A sinking groove (21) is provided on the top of the body (1). An adaptive dot matrix positioning seat (17) is installed on the inner side of the sinking groove (21). Two support slides (19) are fixedly installed on the top of the body (1). A flipping mechanism (18) is installed on the opposite side of the two support slides (19). An adaptive dot matrix clamp (16) is installed on the inner side of the flipping mechanism (18). The adaptive dot matrix positioning seat (17) includes an equalization box (1701), which is fixedly installed on the top of the inner cavity of the body (1). A second support cylinder (1702) is fixedly installed inside the equalization box (1701). Several equalization holes (1708) are opened at the bottom end of the second support cylinder (1702). A sealing piston ring (1705) is sealed and sleeved on the inner side of the second support cylinder (1702). A dot matrix hollow rod (1703) is fixedly sleeved on the inner side of the sealing piston ring (1705). A friction ring (1707) is fixedly installed on the top of the dot matrix hollow rod (1703). A return spring (1704) is sleeved on the outer side of the bottom end of the dot matrix hollow rod (1703). A sealing piston ring 2 (1709) is sealed and sleeved on the inner side of the bottom end of the rod (1703). A flow guide hollow rod (1706) is fixedly sleeved on the inner side of the sealing piston ring 2 (1709). A flow guide cone (1710) is fixedly installed on the top of the flow guide hollow rod (1706). A funnel cover (22) is fixedly installed on the bottom of the equalization box (1701). The flow guide hollow rod (1706) is fixedly inserted through the equalization box (1701) and connected to the inner side of the funnel cover (22). A solenoid valve (1711) is connected to one end of the top of the equalization box (1701). A liquid storage box (1713) is connected to the other end of the solenoid valve (1711). An exhaust valve (1712) is connected to one side of the top of the liquid storage box (1713). The adaptive dot matrix fixture (16) includes two slide rods (1603). A fixture shell (1601) is slidably installed on the opposite sides of the two slide rods (1603). A clamping telescopic column (1602) is fixedly installed on the opposite sides of the fixture shell (1601). Several support cylinders (1607) are fixedly installed inside the fixture shell (1601). A sealing piston (1605) is slidably and sealingly installed on the inner side of the support cylinder (1607). A dot matrix column (1604) is fixedly installed on one side of the sealing piston (1605). A return spring (1606) is fixedly installed on the other side of the sealing piston (1605). Several equalization holes (1608) are opened inside one end of the support cylinder (1607).

2. The laser butt welding device for high-voltage power fittings according to claim 1, characterized in that: The two slide blocks (6) are arranged diagonally on the top of the circular slide rail (5), and the two visual acquisition cameras (23) are symmetrically and evenly distributed on the bottom of the guide rail frame (9). The distance between the two visual acquisition cameras (23) is greater than the size of the sinkhole (21).

3. The laser butt welding device for high-voltage power fittings according to claim 1, characterized in that: The output end of the servo motor (7) is connected to the drive gear (8), and the outer side of the circular slide rail (5) is fixedly sleeved with a gear ring (12). The outer side of the drive gear (8) meshes with the outer side of the gear ring (12).

4. The laser butt welding device for high-voltage power fittings according to claim 1, characterized in that: The top end of the dot matrix hollow rod (1703) slides through the body (1) and extends to the inner side of the sinking groove (21). The second equalization hole (1708) is evenly distributed in a circle inside the bottom end of the second support cylinder (1702). The top end of the second reset spring (1704) is fixedly installed on the top of the inner cavity of the body (1). The bottom end of the second reset spring (1704) is fixedly installed on the top of the first sealing piston ring (1705). The ends of the second support cylinder (1702) are respectively fixedly installed on the opposite sides of the body (1) and the equalization box (1701). The guide cone (1710) is sealed inside the dot matrix hollow rod (1703). The second support cylinder (1702) is evenly distributed in a rectangular linear pattern inside the equalization box (1701). The inside of the equalization box (1701) is filled with hydraulic oil. The reservoir box (1713) is fixedly installed on the top of the inner cavity of the body (1).

5. The laser butt welding device for high-voltage power fittings according to claim 1, characterized in that: The input end of the air pump (3) is connected to the air extraction pipe (4), the other end of the air extraction pipe (4) is connected to the top of the inner cavity of the machine body (1), the bottom end of the funnel cover (22) is connected to the bottom of the inner cavity of the machine body (1), and the bottom end of one side of the machine body (1) is connected to the drain valve (13).

6. The laser butt welding device for high-voltage power fittings according to claim 1, characterized in that: Two support carriages (19) are symmetrically and evenly distributed on both sides of the sinking trough (21). The flipping mechanism (18) includes a flipping frame (1801). Flipping rollers (20) are installed on all four sides of the flipping frame (1801). The flipping rollers (20) are located on the outside of the sinking trough (21). Support feet (1806) are fixedly installed at the four corners of the top and bottom of the flipping frame (1801). Flipping shafts (1802) are fixedly installed on opposite sides of the flipping frame (1801). A movable bearing (1803) is sleeved on the outer side of the flip shaft (1802), and the movable bearing (1803) is sleeved on the inner side of the support slide (19). A flip plate (1804) is fixedly installed on the opposite end of the flip shaft (1802). A connecting rod (1805) is fixedly installed on the outer side of the other end of the flip plate (1804). A flip telescopic rod (11) is movably sleeved on the outer side of the connecting rod (1805) through a collar. The other end of the flip telescopic rod (11) is hinged to the top of the machine body (1).

7. The laser butt welding device for high-voltage power fittings according to claim 6, characterized in that: The opposite ends of the clamping telescopic column (1602) are fixedly installed on the opposite side of the flip frame (1801). The two ends of the slide rod (1603) are fixedly installed on the inner side of the flip frame (1801). The dot matrix column (1604) moves through the clamp housing (1601) and extends to the outer side of the clamp housing (1601). The opposite ends of the dot matrix column (1604) are provided with flexible heads. The end of the reset spring (1606) away from the sealing piston (1605) is fixedly installed inside the support cylinder (1607). Both ends of the support cylinder (1607) are fixedly installed on the inner wall of the clamp housing (1601). The equalizing hole (1608) is evenly distributed in a circle inside the support cylinder (1607). The clamp housing (1601) is filled with hydraulic oil.

8. The laser butt welding device for high-voltage power fittings according to claim 1, characterized in that: The control panel (2) is mounted on the front of the body (1).

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