Compact high-power pulse laser welding device

Abstract

The invention relates to the technical field of welding equipment, and discloses a compact high-power pulse laser welding device which comprises a lifting mounting frame, a power source and a control device are integrated in an inner cavity of the lifting mounting frame, and a high-power pulse laser welder is arranged at the upper end of the front side face of the lifting mounting frame. An X-direction moving execution device is fixedly arranged on the front side face of the lifting installation frame, two Y-direction moving execution devices are arranged on a rail on the upper side face of the X-direction moving execution device, installation bases are movably connected to the upper side faces of the Y-direction moving execution devices in a clamped mode, and a connecting rod is fixedly connected to one end of the upper side face of each installation base. According to the welding device, through a self-adaptive clamping and secondary pressing structure, the pipe diameter adaptation problem of traditional equipment is solved, welding stability is ensured, multi-axis linkage is achieved, precise welding positioning is achieved, and the high-precision plastic pipeline welding requirement is met.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, specifically to a compact high-power pulsed laser welding device. Background Technology

[0002] High-power pulsed lasers refer to lasers with peak power reaching megawatt levels and above, outputting in short pulses at the nanosecond, picosecond, or even femtosecond levels. They can not only release peak power in the megawatt to terawatt range in an extremely short time (such as tens of terawatts in scientific research systems), but also highly concentrate energy within an extremely small spot, forming a power density of over 10¹²W / cm². Combined with adjustable pulse width, repetition frequency, wavelength, and other parameters, they can achieve precise control on both temporal and spatial scales. High-power pulsed laser welding devices are precision equipment that utilizes the concentrated energy, high peak power, and short pulse time of high-power pulsed lasers to achieve material joining. Their core principle is to use a pulsed laser beam to instantly irradiate the welding area of ​​the workpiece, causing the material to melt rapidly and then cool and solidify to form a weld joint. They are suitable for heat-sensitive and high-precision applications.

[0003] In industrial production, the welding of plastic hoses is crucial, as the welding quality directly affects the performance and service life of the product. When welding plastic hoses with small or large diameters, existing equipment either fails to hold them securely, causing the pipe to shake during welding and affecting welding accuracy, or requires a lot of time to replace suitable clamping parts, severely reducing production efficiency. To solve these problems, we propose a compact high-power pulsed laser welding device. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a compact high-power pulsed laser welding device that solves the aforementioned problems.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a compact high-power pulsed laser welding device, comprising a lifting mounting frame, wherein the inner cavity of the lifting mounting frame integrates a power supply and control device, a high-power pulsed laser welder is disposed on the upper end of the front side of the lifting mounting frame, an X-axis moving actuator is fixedly disposed on the front side of the lifting mounting frame, two sets of Y-axis moving actuators are disposed on the upper side track of the X-axis moving actuator, the two sets of Y-axis moving actuators are symmetrically arranged, a second drive motor is fixedly connected to one end of each of the two Y-axis moving actuators, a mounting base is movably engaged on the upper side of each Y-axis moving actuator, a connecting rod is fixedly connected to one end of the upper side of the mounting base, the devices on the two mounting bases are symmetrically arranged, and further comprising: A plastic tube clamping device is installed on the upper side of the mounting base and in the inner cavity of the mounting base, and is used to initially clamp different plastic tubes. The pressure roller clamping device, which is mounted on the connecting rod, is used to stably clamp the plastic tube after it has been initially clamped.

[0006] Preferably, the plastic tube clamping device includes a metal mounting box, a mounting cavity, a movable clamping rod, and auxiliary clamping arms. The metal mounting box is fixedly connected to the upper side of the mounting base. The inner cavity of the metal mounting box is hollow, forming the mounting cavity, and the top of the metal mounting box is open. The movable clamping rod is movably engaged in the mounting cavity. Auxiliary clamping arms are rotatably connected to both sides of the movable clamping rod on the inner walls of the front and rear sides of the metal mounting box.

[0007] Preferably, a clamping wheel is rotatably connected to the top of the mounting cavity, and triangular protrusions are formed on the middle of both sides of the mounting cavity. The upper sides of the two triangular protrusions are inclined slopes, and the lower end of the movable clamping rod extends into the cavity of the mounting base.

[0008] Preferably, bottom support blocks are fixedly connected to the bottom of the inner wall of the mounting cavity corresponding to both sides of the movable clamping rod, and the two bottom support blocks are located below the triangular protrusion. Upper limit blocks are fixedly connected to the upper end of the inner wall of the mounting cavity corresponding to both sides of the movable clamping rod, and the two upper limit blocks are located above the triangular protrusion.

[0009] Preferably, the plastic tube clamping device further includes a first bevel gear, a second bevel gear, a threaded lifting rod, and a lifting drive motor. The threaded lifting rod is rotatably connected to the center of the inner cavity of the mounting base. The first bevel gear is fixedly connected to the side of the threaded lifting rod corresponding to the inner cavity of the mounting base. The lifting drive motor is fixedly connected to the bottom inner wall of the mounting base. The second bevel gear is fixedly connected to the rotating shaft of the lifting drive motor. The second bevel gear and the first bevel gear mesh with each other. The upper end of the threaded lifting rod is threadedly connected to the bottom of the movable clamping rod, and the threaded lifting rod extends into the inner cavity of the movable clamping rod.

[0010] Preferably, the upper and lower ends of the auxiliary clamping arm are rotatably connected to secondary clamping wheels. The secondary clamping wheel located at the lower end of the auxiliary clamping arm is in contact with the inclined surface of the triangular protrusion. The two auxiliary clamping arms located at the upper end of the auxiliary clamping arm are located above the horizontal axis of the clamping wheel and are symmetrically arranged. A plastic tube rotation drive motor is fixedly connected to the top side of the movable clamping rod. The rotation shaft of the plastic tube rotation drive motor is fixedly connected to the rotation shaft of the clamping wheel.

[0011] Preferably, a plurality of rubber spherical blocks arranged in a ring array are fixedly connected to the side of the clamping wheel.

[0012] Preferably, the pressure roller clamping device includes a T-shaped sleeve, an extension rod, a downward-pressing threaded rotating rod, and a V-shaped connecting block. The upper side of the connecting rod is movably sleeved with the T-shaped sleeve, the horizontal section of the T-shaped sleeve is fixedly connected with the extension rod, the side of the extension rod is threaded with the downward-pressing threaded rotating rod, and the lower end of the downward-pressing threaded rotating rod extends to the bottom of the extension rod and is rotatably engaged with the V-shaped connecting block.

[0013] Preferably, a locking rod is threadedly connected to the side of the T-shaped sleeve, one end of which extends into the inner cavity of the T-shaped sleeve and is in contact with the side of the connecting rod, and both ends of the bottom of the V-shaped connecting block are rotatably connected to pressure wheels.

[0014] Compared with the prior art, the present invention provides a compact high-power pulsed laser welding device, which has the following advantages: This compact, high-power pulsed laser welding device utilizes a threaded lifting rod and a movable clamping rod for threaded transmission, along with the mechanical linkage between the auxiliary clamping wheel at the lower end of the auxiliary clamping arm and the inclined surface of the triangular protrusion. This allows the device to automatically adjust the clamping force and range according to the diameter of the plastic hose. When the lifting drive motor is started, the bevel gear set drives the threaded lifting rod to rotate. Simultaneously, the movable clamping rod rises and falls linearly, pushing the auxiliary clamping arm to rotate around the hinge point. This causes the auxiliary clamping wheel and the clamping roller to synchronously grip the hose from multiple directions. This eliminates the cumbersome manual replacement of different clamp specifications required by traditional equipment, eliminates the need for downtime for debugging, and enables rapid switching between hoses of different diameters.

[0015] This compact, high-power pulsed laser welding device utilizes a sliding adjustment structure between a T-shaped sleeve and a connecting rod, combined with precise pressure control via a downward-pressing threaded rod, to provide secondary stabilization for the initially clamped hose. The operator first quickly positions the pressure roller horizontally using the locking rod, then uses the fine-threaded downward-pressing rod to drive the V-shaped connecting block vertically downwards, ensuring the pressure roller adheres to the hose surface with constant pressure. This dual adjustment mechanism of "coarse adjustment + fine adjustment" effectively counteracts the micro-wobbling of the hose caused by laser energy impact during welding, reducing displacement errors during welding.

[0016] This compact high-power pulsed laser welding device uses a rubber ball block of the clamping device and an auxiliary clamping arm to form an initial flexible constraint, while the pressure roller clamping device achieves secondary stabilization through rigid pressure compensation. The two work together to ensure that the hose maintains sufficient friction during the welding process while avoiding excessive compression and deformation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the X-axis movement actuator and the Y-axis movement actuator of the present invention; Figure 3 This is a schematic diagram showing the disassembled structure of the metal mounting box and mounting base of the present invention; Figure 4 This is a schematic diagram of the plastic tube clamping device of the present invention; Figure 5 This is a schematic cross-sectional view of the plastic tube clamping device of the present invention; Figure 6 This is a schematic diagram of the clamping wheel of the present invention; Figure 7 for Figure 5 A magnified view of point A; Figure 8 This is a schematic diagram of the pressure roller clamping device of the present invention.

[0018] In the diagram: 1. Lifting mounting frame; 2. High-power pulsed laser welder; 3. X-axis moving actuator; 4. Y-axis moving actuator; 5. Mounting base; 6. Plastic tube clamping device; 7. Connecting rod; 8. Pressure roller clamping device; 9. First drive motor; 10. Second drive motor; 11. Metal mounting box; 12. Mounting cavity; 13. Movable clamping rod; 14. Auxiliary clamping arm; 15. Plastic tube rotation drive motor; 16. Bevel gear one; 17. Bevel gear two; 18. Threaded lifting rod; 19. Lifting drive motor; 20. Bottom support block; 21. Upper limit block; 22. Clamping wheel; 23. Secondary clamping wheel; 24. T-shaped sleeve; 25. Locking rotating rod; 26. Extension rod; 27. Downward pressing threaded rotating rod; 28. V-shaped connecting block; 29. ​​Pressure roller. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-8A compact high-power pulsed laser welding device includes a lifting mounting frame 1. The inner cavity of the lifting mounting frame 1 integrates a power supply and control device. A high-power pulsed laser welder 2 is mounted on the upper front side of the lifting mounting frame 1. An X-axis moving actuator 3 is fixedly mounted on the front side of the lifting mounting frame 1. Two sets of Y-axis moving actuators 4 are mounted on the upper track of the X-axis moving actuator 3, arranged symmetrically. One end of each Y-axis moving actuator 4 is fixedly connected to a second drive motor 10. A mounting base 5 is movably engaged on the upper side of each Y-axis moving actuator 4. A connecting rod 7 is fixedly connected to one end of the upper side of each mounting base 5. The devices on the two mounting bases 5 are arranged symmetrically. The device also includes: The plastic tube clamping device 6 is disposed on the upper side of the mounting base 5 and in the inner cavity of the mounting base 5, and is used to initially clamp different plastic tubes. The pressure roller clamping device 8 is mounted on the connecting rod 7 and is used to stably clamp the plastic tube after it has been initially clamped.

[0021] Furthermore, the plastic tube clamping device 6 includes a metal mounting box 11, a mounting cavity 12, a movable clamping rod 13, and an auxiliary clamping arm 14. The metal mounting box 11 is fixedly connected to the upper side of the mounting base 5. The inner cavity of the metal mounting box 11 is hollow to form the mounting cavity 12, and the top of the metal mounting box 11 is open. The movable clamping rod 13 is movably engaged in the mounting cavity 12. The auxiliary clamping arms 14 are rotatably connected to both sides of the movable clamping rod 13 on the inner walls of the front and rear sides of the metal mounting box 11. The metal mounting box 11 provides mounting support and protection for the internal components, and the mounting cavity 12 provides space for the movement of the movable clamping rod 13 and the auxiliary clamping arm 14, ensuring that they can smoothly complete the clamping action.

[0022] Furthermore, a clamping wheel 22 is rotatably connected to the top of the mounting cavity 12. Triangular protrusions are formed on the middle of both sides of the mounting cavity 12. The upper sides of the two triangular protrusions are inclined. The lower end of the movable clamping rod 13 extends into the cavity of the mounting base 5. The triangular protrusions, through the inclined structure, guide the auxiliary clamping wheel 23 at the lower end of the auxiliary clamping arm 14 to roll when the movable clamping rod 13 is raised and lowered, thereby realizing the opening and closing action of the auxiliary clamping arm 14. The clamping wheel 22 rotates under the drive of the plastic tube rotation drive motor 15, and works with the auxiliary clamping arm 14 to restrict the movement of the hose.

[0023] Furthermore, bottom support blocks 20 are fixedly connected to the bottom of the inner wall of the mounting cavity 12 corresponding to the two sides of the movable clamping rod 13. The two bottom support blocks 20 are located below the triangular protrusion. Upper limit blocks 21 are fixedly connected to the upper end of the inner wall of the mounting cavity 12 corresponding to the two sides of the movable clamping rod 13. The two upper limit blocks 21 are located above the triangular protrusion. The bottom support blocks 20 and the upper limit blocks 21 limit the lifting stroke of the movable clamping rod 13 to prevent it from moving excessively and to ensure the stability and accuracy of the clamping action.

[0024] Furthermore, the plastic tube clamping device 6 also includes a bevel gear 16, a bevel gear 17, a threaded lifting rod 18, and a lifting drive motor 19. The threaded lifting rod 18 is rotatably connected to the center of the inner cavity of the mounting base 5. The bevel gear 16 is fixedly connected to the side of the threaded lifting rod 18 corresponding to the inner cavity of the mounting base 5. The lifting drive motor 19 is fixedly connected to the bottom inner wall of the mounting base 5. The bevel gear 17 is fixedly connected to the rotating shaft of the lifting drive motor 19. The bevel gear 17 and the bevel gear 16 mesh with each other. The upper end of the threaded lifting rod 18 is threadedly connected to the bottom of the movable clamping rod 13, and the threaded lifting rod 18 extends into the inner cavity of the movable clamping rod 13. The lifting drive motor 19 transmits the rotational motion to the threaded lifting rod 18 through the meshing of the bevel gear 16 and the bevel gear 17, thereby converting it into the linear lifting motion of the movable clamping rod 13, providing power for the clamping action.

[0025] Furthermore, auxiliary clamping arms 14 are rotatably connected to both the upper and lower ends of the auxiliary clamping arm 14. The auxiliary clamping wheel 23 located at the lower end of the auxiliary clamping arm 14 is in contact with the inclined surface of the triangular protrusion. The two auxiliary clamping arms 14 located at the upper end of the auxiliary clamping arm 14 are located above the horizontal axis of the clamping wheel 22 and are symmetrically arranged. A plastic tube rotation drive motor 15 is fixedly connected to the top side of the movable clamping rod 13. The rotation shaft of the plastic tube rotation drive motor 15 is fixedly connected to the rotation shaft of the clamping wheel 22. The auxiliary clamping wheel 23 reduces the friction between the auxiliary clamping arm 14, the inclined surface of the triangular protrusion, and the hose, making the clamping action smoother. The plastic tube rotation drive motor 15 drives the clamping wheel 22 to rotate, which in turn drives the hose to rotate, achieving uniform welding.

[0026] Furthermore, multiple rubber spherical blocks arranged in a ring array are fixedly connected to the side of the clamping wheel 22. The rubber spherical blocks increase the friction between the clamping wheel 22 and the hose, ensuring reliable clamping while avoiding damage to the surface of the hose.

[0027] Furthermore, the pressure roller clamping device 8 includes a T-shaped sleeve 24, an extension rod 26, a downward-pressing threaded rotating rod 27, and a V-shaped connecting block 28. The upper side of the connecting rod 7 is movably fitted with the T-shaped sleeve 24. The horizontal section of the T-shaped sleeve 24 is fixedly connected to the extension rod 26. The side of the extension rod 26 is threadedly connected to the downward-pressing threaded rotating rod 27. The lower end of the downward-pressing threaded rotating rod 27 extends to the bottom of the extension rod 26 and is rotatably engaged with the V-shaped connecting block 28. The T-shaped sleeve 24 can slide on the connecting rod 7 to adjust the horizontal position of the pressure roller clamping device 8. The extension rod 26 provides an installation base for the downward-pressing threaded rotating rod 27. The downward-pressing threaded rotating rod 27 drives the V-shaped connecting block 28 and the clamping roller 29 to move vertically through threaded transmission, thereby clamping the hose.

[0028] Furthermore, a locking lever 25 is threaded onto the side of the T-shaped sleeve 24. One end of the locking lever 25 extends into the inner cavity of the T-shaped sleeve 24 and is in contact with the side of the connecting rod 7. Both ends of the bottom of the V-shaped connecting block 28 are rotatably connected to pressure wheels 29. The locking lever 25 is used to fix the position of the T-shaped sleeve 24 on the connecting rod 7 to prevent it from moving during welding. The pressure wheels 29 contact the surface of the hose to provide stable clamping force, further enhancing the hose clamping stability.

[0029] Working Principle: The components of this compact high-power pulsed laser welding device work together through precise mechanical transmission and electrical control. The control device integrated within the lifting mounting frame 1 serves as the core hub, controlling the operation of each drive motor via electrical signals, while the power supply provides power to all power components and control circuits. The high-power pulsed laser welder 2 is connected to the control device via cables. After receiving control signals, it can adjust the laser output parameters to provide energy for the welding operation. The X-axis moving actuator 3 is fixedly installed on the front side of the lifting mounting frame 1, and its top track is slidably engaged with two sets of Y-axis moving actuators 4. The output shaft of the second drive motor 10 is directly connected to the transmission mechanism of the Y-axis moving actuator 4. When the second drive motor 10 is energized and rotates, the rotational motion is converted into linear motion through a gear set or lead screw and nut mechanism, driving the Y-axis moving actuator 4 to translate along the Y-axis direction on the track of the X-axis moving actuator 3. Since the two sets of Y-axis moving actuators 4 are symmetrically arranged and operate synchronously, the mounting base 5 is connected to the top of the Y-axis moving actuator 4 through a movable snap-fit ​​structure, thereby achieving stable Y-axis displacement and ensuring the positioning accuracy of the high-power pulsed laser welder 2 in the Y-axis direction. The plastic tube clamping device 6 fits tightly with the mounting base 5 to achieve adaptive clamping of plastic hoses of different diameters. When the hose needs to be clamped, the lifting drive motor 19 is powered on and started. The bevel gear 17 fixed on its rotating shaft rotates accordingly and meshes with the bevel gear 16 in the middle of the threaded lifting rod 18. This transmits the rotational motion of the lifting drive motor 19 to the threaded lifting rod 18, causing it to rotate within the inner cavity of the mounting base 5. Since the threaded lifting rod 18 and the movable clamping rod 13 are connected by threads, the rotation of the threaded lifting rod 18 is converted into the linear lifting motion of the movable clamping rod 13 within the mounting cavity 12. When the movable clamping rod 13 moves down, the auxiliary clamping wheel 23 at the lower end of the auxiliary clamping arm 14 rolls along the inclined surface of the triangular protrusion. Due to the guiding effect of the inclined surface, the auxiliary clamping arm 14 rotates inward around its hinge point with the metal mounting box 11. The two auxiliary clamping arms 14 initially clamp the plastic hose from both sides. Meanwhile, the plastic tube fixed at the top of the movable clamping rod 13 drives the clamping wheel 22 to rotate synchronously via the rotation drive motor 15. The rubber ball block on the side of the clamping wheel 22 cooperates with the auxiliary clamping wheel 23 at the upper end of the auxiliary clamping arm 14 to restrict the movement and rotation of the hose from multiple directions. The pressure roller clamping device 8 provides secondary fixation for the initially clamped hose. The operator first rotates the locking rod 25, which, through threaded transmission, causes the T-shaped sleeve 24 to slide on the connecting rod 7. After adjusting to the appropriate position, it is tightened and fixed. Then, the operator rotates the downward pressing threaded rod 27, which engages with the threaded hole on the extension rod 26, converting the rotational motion into the vertical downward pressing motion of the V-shaped connecting block 28 and the pressure roller 29, until the pressure roller 29 is tightly pressed against the surface of the plastic hose, further enhancing the clamping stability.

[0030] During welding operations, the control device simultaneously controls the operation of the second drive motor 10, the lifting drive motor 19, and the plastic tube rotation drive motor 19, as well as the laser emission of the high-power pulsed laser welder 2, according to a preset program. The X-axis moving actuator 3 and the Y-axis moving actuator 4 move in tandem, driving the high-power pulsed laser welder 2 to move along the welding path; the clamping wheel 22 rotates continuously to make the flexible tube rotate at a uniform speed, ensuring that the laser beam acts evenly on the welding part of the flexible tube, realizing high-precision and high-efficiency multi-dimensional welding operations.

[0031] 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 compact high power pulsed laser welding device comprising a lifting mount (1), characterized in that: The inner cavity of the lifting mounting frame (1) is integrated with a power supply and a control device, a high-power pulse laser welder (2) is arranged on the front side upper end of the lifting mounting frame (1), an X-direction moving execution device (3) is fixedly arranged on the front side of the lifting mounting frame (1), two groups of Y-direction moving execution devices (4) are arranged on the upper side of the X-direction moving execution device (3), the two groups of Y-direction moving execution devices (4) are symmetrically arranged, one end of each of the two Y-direction moving execution devices (4) is fixedly connected with a second driving motor (10), the upper side of each of the Y-direction moving execution devices (4) is movably clamped with a mounting base (5), one end of the upper side of the mounting base (5) is fixedly connected with a connecting rod (7), the devices on the two mounting bases (5) are symmetrically arranged, and the device further comprises: A plastic pipe clamping device (6) is arranged on the upper side of the mounting base (5) and in the inner cavity of the mounting base (5), and is used for preliminarily clamping different plastic pipes; A pressure roller pressing device (8) is arranged on the connecting rod (7), and is used for stably pressing the preliminarily clamped plastic pipe.

2. A compact high power pulsed laser welding device according to claim 1, characterized in that: The plastic pipe clamping device (6) comprises a metal mounting box (11), a mounting inner cavity (12), a movable clamping rod (13) and an auxiliary clamping arm (14), the upper side of the mounting base (5) is fixedly connected with the metal mounting box (11), the inner cavity of the metal mounting box (11) is hollowly formed with the mounting inner cavity (12), and the top of the metal mounting box (11) is in an open structure, the mounting inner cavity (12) is movably clamped with the movable clamping rod (13), and the front and rear inner walls of the metal mounting box (11) are rotatably connected with the auxiliary clamping arms (14) corresponding to the two sides of the movable clamping rod (13).

3. A compact high power pulsed laser welding device according to claim 2, characterized in that: The top of the mounting inner cavity (12) is rotatably connected with a clamping rotary wheel (22), the middle of the two sides of the mounting inner cavity (12) is outwardly protruded to form a triangular protrusion, the upper side of each of the two triangular protrusions is an inclined surface, and the lower end of the movable clamping rod (13) extends into the inner cavity of the mounting base (5).

4. The compact high power pulsed laser welding device of claim 2, wherein: The inner wall bottom of the mounting inner cavity (12) is fixedly connected with bottom supporting blocks (20) corresponding to the two sides of the movable clamping rod (13), the two bottom supporting blocks (20) are located below the triangular protrusion, and the inner wall upper end of the mounting inner cavity (12) is fixedly connected with upper end limiting blocks (21) corresponding to the two sides of the movable clamping rod (13), and the two upper end limiting blocks (21) are located above the triangular protrusion.

5. The compact high power pulsed laser welding device of claim 2, wherein: The plastic pipe clamping device (6) further comprises a bevel gear one (16), a bevel gear two (17), a threaded lifting rod (18) and a lifting driving motor (19), the threaded lifting rod (18) is rotatably connected at the center of the inner cavity of the mounting base (5), the bevel gear one (16) is fixedly connected on the side of the threaded lifting rod (18) corresponding to the inner cavity of the mounting base (5), the lifting driving motor (19) is fixedly connected on the inner wall of the bottom side of the mounting base (5), the bevel gear two (17) is fixedly connected at the rotating shaft of the lifting driving motor (19), the bevel gear two (17) and the bevel gear one (16) are engaged with each other, the upper end of the threaded lifting rod (18) is threadedly connected with the bottom of the movable clamping rod (13), and the threaded lifting rod (18) extends into the inner cavity of the movable clamping rod (13).

6. The compact high power pulsed laser welding device of claim 1, wherein: The upper and lower ends of the auxiliary clamping arm (14) are rotatably connected with auxiliary clamping wheels (23), the auxiliary clamping wheel (23) located at the lower end of the auxiliary clamping arm (14) is attached to the inclined surface of the triangular protrusion, the two auxiliary clamping arms (14) located at the upper end of the auxiliary clamping arm (14) are located above the horizontal line of the shaft center of the clamping rotating wheel (22) and are symmetrically arranged, the top of the side of the movable clamping rod (13) is fixedly connected with a plastic pipe rotating driving motor (15), and the rotating shaft of the plastic pipe rotating driving motor (15) is fixedly connected with the rotating shaft of the clamping rotating wheel (22).

7. A compact high power pulsed laser welding device according to claim 6, characterized in that: A plurality of rubber spherical blocks in annular array are fixedly connected on the side of the clamping rotating wheel (22).

8. The compact high power pulsed laser welding device of claim 1, wherein: The pressure wheel pressing device (8) comprises a T-shaped sleeve (24), an extension rod (26), a downward pressing threaded rotating rod (27) and a V-shaped connecting block (28), the T-shaped sleeve (24) is movably sleeved on the upper end of the side of the connecting rod (7), the horizontal section of the T-shaped sleeve (24) is fixedly connected with the extension rod (26), the downward pressing threaded rotating rod (27) is threadedly connected on the side of the extension rod (26), and the lower end of the downward pressing threaded rotating rod (27) extends below the extension rod (26) and is rotatably clamped with the V-shaped connecting block (28).

9. A compact high power pulsed laser welding device according to claim 8, characterized in that: A locking rotating rod (25) is threadedly connected on the side of the T-shaped sleeve (24), one end of the locking rotating rod (25) extends into the inner cavity of the T-shaped sleeve (24) and is attached to the side of the connecting rod (7), and the bottom of the V-shaped connecting block (28) is rotatably connected with a pressing wheel (29) at both ends.

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