Micro plastic pipe laser welding machine

Abstract

The invention provides a tiny plastic pipe laser welding machine which comprises a working table and a main machine fixed to the working table, a laser device is installed on the main machine, a supporting base is fixedly connected to the working table, a clamping assembly and a power assembly used for driving the clamping assembly to rotate are arranged on the supporting base, and the power assembly is fixedly connected to the working table. The clamping device further comprises a supporting wire which is arranged in the two thin pipes in a penetrating mode and abuts against the inner walls of the thin pipes, the clamping assembly is connected with the supporting wire, a limiting base is arranged on the workbench, a first protruding block is arranged on the limiting base, a second protruding block corresponding to the first protruding block is connected to the limiting base in a sliding mode, and the supporting wire is connected with the clamping assembly. A limiting area for limiting movement of the thin pipe is formed between the first protruding block and the second protruding block, a pulling-out assembly used for pulling out the supporting wire from the thin pipe is arranged on the supporting base, and the purpose of improving the production efficiency is achieved.

Description

Technical Field

[0001] The invention relates to a laser welding machine, in particular to a micro plastic tube laser welding machine. Background Art

[0002] At present, a Chinese patent with authorization announcement number CN221497150U discloses an auxiliary device for plastic pipe welding, including: a support plate, through grooves are opened on both sides of the support plate, support legs are symmetrically fixedly installed on the bottom of the support plate, and a welding box is fixedly installed on the top of the support plate.

[0003] By installing the clamping assembly at one end of the tube, the surface of the pipe can be automatically clamped and fixed, reducing the workload of the staff, and after clamping, the two clamped pipes are synchronously and slowly rotated by the rotating assembly. When the laser welding machine welds the two pipes, it can weld at a uniform and stable speed, making the pipe welding more uniform and avoiding manual rotation of the pipe.

[0004] This auxiliary device for plastic pipe welding has two problems. First, it can only weld hard pipes. For long and small-diameter thin pipes, the thin pipes have a certain degree of flexibility, and the ends of the two thin pipes cannot be stably connected. Second, after the two thin pipes are welded, they need to be pulled out of the installation tube, and then manually pulled to test whether the two thin pipes are welded and fixed. Therefore, the procedure is cumbersome and the operation is inconvenient, which affects production efficiency. Summary of the invention

[0005] In view of this, the object of the present invention is to provide a micro plastic tube laser welding machine to achieve the purpose of improving production efficiency.

[0006] In order to solve the above technical problems, the technical solution of the present invention is: a micro plastic tube laser welding machine, comprising a workbench and a main unit fixed on the workbench, a laser being installed on the main unit, a support seat being fixedly connected to the workbench, a clamping assembly and a power assembly for driving the clamping assembly to rotate being provided on the support seat, and also comprising a support wire for passing through two thin tubes and contacting the inner wall of the thin tubes, the clamping assembly being connected to the support wire, a limit seat being provided on the workbench, a first protrusion being provided on the limit seat, a second protrusion corresponding to the first protrusion being slidably connected to the limit seat, a limit zone for limiting the movement of the thin tube being formed between the first protrusion and the second protrusion, and a withdrawal assembly for withdrawing the support wire from the thin tube being provided on the support seat.

[0007] To implement the above technical solution, the supporting wire is passed through the two thin tubes so that the supporting wire supports the two thin tubes, and then one end of the supporting wire is passed through the clamping assembly and connected to the withdrawal assembly. After the clamping assembly presses the supporting wire tightly, a thin tube is placed in the limiting area, and the thin tube is limited by the first protrusion and the second protrusion, and the thin tube is pushed so that the welding point of the two thin tubes corresponds to the laser. Then the power assembly rotates the supporting wire, and the friction between the supporting wire and the thin tube makes the two thin tubes rotate synchronously with the supporting wire, and then the laser is turned on to make the laser weld the welding point. After the welding is completed, the clamping assembly is separated from the supporting wire, and the second The protrusion moves toward the first protrusion, so that friction is generated between the first protrusion, the second protrusion and the outer wall of the capillary, and the extraction component is started and a pulling force is applied to the supporting wire to pull the supporting wire out of the two capillary. Due to the friction between the supporting wire and the capillary, if the two capillary tubes are separated, it means that the welding has failed and needs to be re-welded. If the two capillary tubes are not separated after the supporting wire is pulled out of the two capillary tubes, it means that the welding is successful. After the first protrusion and the second protrusion are separated, the capillary can be moved out of the limiting area, thereby eliminating the process of workers pulling out the supporting wire and checking whether the welding is successful, thereby greatly improving production efficiency.

[0008] As a preferred solution of the present invention, the clamping assembly includes a power cylinder, a splint, a fixed tube, a connecting ring, a connecting groove, and a sliding sleeve. The fixed tube is fixedly connected in the support seat, the sliding sleeve is slidably connected to the support seat, the fixed tube is passed through the interior of the sliding sleeve, a plurality of the connecting rings are fixed on the outer wall of the fixed tube, one end of a plurality of the splints is hinged on the fixed tube, the other end of the splint is used to clamp the supporting wire, the connecting groove is opened at the end of the splint and is used to engage with a plurality of the connecting rings, and the power cylinder is fixed in the support seat and is used to drive the sliding sleeve to move along the axial direction of the sliding sleeve.

[0009] To implement the above technical solution, the power cylinder is started, the sliding sleeve moves along the length direction of the fixed tube, and contacts the connecting ring through the inner wall of the connecting groove, so that the splint is flipped along the hinge, so that the splint can be pressed against the supporting wire or separated from the supporting wire; and when the sliding sleeve rotates along the axis of the fixed tube, the connecting ring rotates along the connecting groove, so that the splint rotates more smoothly.

[0010] As a preferred solution of the present invention, the power assembly includes a first gear, a second gear and a power motor, the first gear is fixed on the outer wall of the sleeve, the power motor is fixed in the support seat, and the second gear is fixed on the power shaft of the power motor and meshes with the first gear.

[0011] To implement the above technical solution, the sleeve moves along the length direction of the fixed tube, and the first gear and the second gear slide relative to each other. When the power motor is started, the second gear drives the sleeve to rotate through the first gear, which is easy to operate.

[0012] As a preferred solution of the present invention, the extraction assembly includes a conical sleeve, a driving sleeve, and a positioning bead. The power cylinder drives the driving sleeve to move along the axial direction of the driving sleeve. The conical sleeve is slidably connected in the driving sleeve. The positioning bead is arranged on the conical sleeve. The supporting wire passes through the conical sleeve. The driving sleeve moves in a direction away from the clamping assembly and the positioning bead is pressed against the outer wall of the supporting wire through the conductive structure.

[0013] To implement the above technical solution, after welding is completed, the power cylinder is turned on, and the power cylinder drives the driving sleeve to move in the direction close to the clamping assembly. The friction between the positioning bead and the supporting wire is reduced through the conduction structure. When the driving sleeve moves in the direction away from the clamping assembly, the friction between the positioning bead and the supporting wire is increased through the conduction assembly, thereby being able to pull the supporting wire in one direction.

[0014] As a preferred embodiment of the present invention, the conductive structure includes a first conical surface, a second conical surface, an elastic member, and a limiting hole. The first conical surface is provided on the outer wall of the conical sleeve, the second conical surface is provided on the inner wall of the driving sleeve, the multiple limiting holes are provided on the first conical surface and are arranged along the axis of the conical sleeve, the positioning beads are placed in the limiting holes, and the two ends of the elastic member are respectively connected to the conical sleeve and the driving sleeve and cause the conical sleeve to have a tendency to move closer to the second conical surface.

[0015] To implement the above technical solution, the power cylinder is started, and the driving sleeve moves in a direction close to the clamping assembly, causing the first conical surface to have a tendency to move away from the second conical surface. At this time, the pressure of the positioning bead on the supporting wire is relatively small, making it difficult for the supporting wire to move. The setting of the elastic member keeps the positioning bead in contact with the second conical surface. When the driving sleeve moves in a direction away from the clamping assembly, the second conical surface exerts pressure on the positioning bead. At the same time, the elastic member exerts a tendency for the positioning bead to move close to the second conical surface, causing the positioning bead to exert greater pressure on the supporting wire and generate greater friction, so that the positioning bead pulls the supporting wire to move synchronously. Thereby, unidirectional and intermittent pulling of the supporting wire is realized. Each intermittent pulling can generate an instantaneous impact load, and small defects in the welding joints are more easily exposed under the impact, so that the inspection of welding firmness is more accurate.

[0016] As a preferred solution of the present invention, a blocking plate is fixedly connected to the outer wall of the support seat, and a blocking hole is opened on the blocking plate. The aperture of the blocking hole is larger than the outer diameter of the supporting wire and smaller than the outer diameter of the capillary. The supporting wire is used to connect with the clamping assembly after passing through the blocking hole.

[0017] To implement the above technical solution, if two capillaries are broken, one capillaries will move synchronously with the supporting wire due to the friction force, causing the capillaries to collide with the blocking plate to avoid damage to the capillaries. After the supporting wire is completely pulled out of the two capillaries, the two capillaries can be easily taken out.

[0018] As a preferred solution of the present invention, a friction ring groove is provided on the outer wall of the support wire, and a plurality of the friction ring grooves are arranged along the length direction of the support wire.

[0019] The implementation of the above technical solution increases the friction force generated by the supporting wire on the capillary when it is pulled, so that the firmness test between the two capillary tubes is more reliable.

[0020] As a preferred solution of the present invention, the first protrusion is fixedly connected to a first limit block, the second protrusion is fixedly connected to a second limit block, a plurality of the first limit blocks and a plurality of the second limit blocks are staggered, a V-shaped groove is provided on the opposite side of the first limit block and the second limit block, and the limit area is formed between the two V-shaped grooves.

[0021] To implement the above technical solution, the first limit block is inserted between the two second limit blocks, and the second limit block is inserted between the two first limit blocks, so that the capillary is placed more stably in the V-shaped groove.

[0022] As a preferred solution of the present invention, an extension seat is fixedly connected to the workbench, and a supporting groove for supporting the capillary is provided on the extension seat.

[0023] The implementation of the above technical solution can support long thin tubes and improve practicality.

[0024] As a preferred solution of the present invention, the main engine is connected to a protective cylinder, the protective cylinder is connected to a guard plate, a straight groove is opened on the workbench, and the lower edge of the guard plate is used to be embedded in the straight groove.

[0025] To implement the above technical solution, before the laser is started, the protective cylinder is started, the guard plate is moved down and embedded in the straight groove, and after the laser is started, the protection for the workers can be enhanced.

[0026] In summary, the present invention has the following beneficial effects: 1. Insert the support wire into the two thin tubes to support the two thin tubes, and insert the end of one thin tube into the end of the other thin tube to keep the welding point stable; 2. After welding is completed, the first and second protrusions apply a pressing force to one of the capillaries to limit the abstract movement of the capillaries. The pull-out assembly pulls the support wire out of the two capillaries, eliminating the need for workers to manually pull out the support wire. The friction between the support wire and the capillaries is used to test the welding firmness between the two capillaries. If the two capillaries are pulled apart, it means that the welding has failed. If the two capillaries remain connected, it means that the welding has been successful. 3. As the pulling component causes the support wire to twitch intermittently, an instantaneous impact load can be generated, and the tiny defects at the weld are more easily exposed under the impact, so that the inspection of welding firmness is more accurate. After the pulling component pulls the support wire to move a certain distance, the friction between the positioning bead and the support wire during the resetting period of the pulling component enables the two capillaries to have a tendency to move relative to each other, simulating the process of manually pulling the capillaries. 4. Multiple friction ring grooves are opened on the outer wall of the support wire to increase the friction force of the support wire in the process of pulling the capillary, so as to make the inspection of welding firmness more accurate; 5. If the welding point between the two capillaries is broken, the capillaries will be blocked by the blocking plate after moving with the support wire until the support wire is completely pulled out of the capillaries to avoid damage to the capillaries and facilitate the collection and re-welding of the two capillaries. 6. Both the clamping assembly and the extraction assembly are driven by a power cylinder as a power source, making the structure more compact and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the external structure of the present invention; Figure 2 It is a schematic diagram of the use state of the present invention; Figure 3 A schematic diagram showing the internal structure of the support seat; Figure 4 for Figure 3 A magnified image of point A; Figure 5 To show the structural diagram of the power assembly; Figure 6 An exploded diagram showing the extracted components; Figure 7 A schematic cross-sectional view showing a driving sleeve; Figure 8 To show the schematic diagram of the connection between the drive sleeve and the support wire; Fig. 9 It is a schematic diagram showing the structure of the friction ring groove.

[0028] Figure numerals: 1, workbench; 2, host; 3, laser; 4, support wire; 5, friction ring groove; 6, first capillary; 7, second capillary; 8, support seat; 9, clamping assembly; 10, power cylinder; 11, clamping plate; 12, fixing pipe; 13, connecting ring; 14, connecting groove; 15, sliding sleeve; 16, first connecting plate; 17, second connecting plate; 18, annular groove; 19, power assembly; 20, first gear; 21, second gear; 22, power motor ; 23. Limit seat; 24. First protrusion; 25. Second protrusion; 26. Adjusting cylinder; 27. First limit block; 28. Second limit block; 29. ​​Guard plate; 30. Straight groove; 31. Pull-out assembly; 32. Conical sleeve; 33. Drive sleeve; 34. Positioning bead; 35. Conducting structure; 36. First conical surface; 37. Second conical surface; 38. Elastic member; 39. Limit hole; 40. Blocking plate; 41. Blocking hole; 42. Extension seat; 43. Support groove. DETAILED DESCRIPTION

[0029] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0030] A micro plastic tube laser welding machine comprises a workbench 1, a host 2 fixed on the workbench 1, and a support wire 4. A laser 3 is installed on the host 2. A first capillary tube 6 and a second capillary tube 7 are prepared, and the support wire 4 is passed through the first capillary tube 6 and the second capillary tube 7.

[0031] A friction ring groove 5 is provided on the outer wall of the support wire 4, and a plurality of friction ring grooves 5 are arranged along the length direction of the support wire 4. The support wire 4 is made of steel wire. All the friction ring grooves 5 are located inside the first capillary 6, and the end of the first capillary 6 and the end of the second capillary 7 are butt-jointed to obtain a welding point.

[0032] A support base 8 is fixedly connected to the workbench 1, and a clamping assembly 9 for fixing the support wire 4 is arranged in the support base 8. The clamping assembly 9 includes a power cylinder 10, a clamping plate 11, a fixing pipe 12, a connecting ring 13, a connecting groove 14, and a sliding sleeve 15. The fixing pipe 12 is fixedly connected to the support base 8, and the support wire 4 is inserted into the fixing pipe 12.

[0033] The sliding sleeve 15 is slidably connected to the support seat 8, and the fixed tube 12 is inserted into the sliding sleeve 15 so that the fixed tube 12 and the sliding sleeve 15 are coaxially arranged. A plurality of connecting rings 13 are fixed on the outer wall of the fixed tube 12, and the distance between two adjacent connecting rings 13 is equal. One end of the three clamping plates 11 is hinged on the fixed tube 12, and the other end of the clamping plates 11 is used to clamp the support wire 4.

[0034] The connecting groove 14 is formed at the end of the clamping plate 11 and is used to engage with the connecting ring 13. The connecting grooves 14 are arranged in an arc shape. The power cylinder 10 is fixed in the support seat 8. A first connecting plate 16 is fixedly connected to the piston rod of the power cylinder 10. A second connecting plate 17 is fixedly connected to the outer wall of the sliding sleeve 15. An annular groove 18 is formed on the outer circumferential surface of the second connecting plate 17. The first connecting plate 16 is placed in the annular groove 18.

[0035] When the power cylinder 10 is started, the first connecting plate 16 and the second connecting plate 17 collide with each other, so that the sleeve 15 moves along its own axial direction, and the connecting ring 13 collide with the inner wall of the connecting groove 14, so that the splint 11 flips along the hinge, so that the splint 11 clamps the supporting wire 4 or separates the splint 11 from the supporting wire 4.

[0036] A power assembly 19 for driving the sleeve 15 to rotate is arranged in the support seat 8. The power assembly 19 includes a first gear 20, a second gear 21 and a power motor 22. The first gear 20 is fixed to the outer wall of the sleeve 15, and the first gear 20 is coaxially arranged with the sleeve 15. The power motor 22 is fixed in the support seat 8, and the second gear 21 is fixed to the power shaft of the power motor 22 and meshes with the first gear 20. The first gear 20 and the second gear 21 are both spur gears.

[0037] When the sliding sleeve 15 moves along its length direction, the first gear 20 and the second gear 21 slide relative to each other without separation. After the clamping plate 11 clamps the support wire 4, the power motor 22 is turned on, the second gear 21 drives the sliding sleeve 15 to rotate through the first gear 20, the first connecting plate 16 slides along the annular groove 18, and the connecting ring 13 slides along the connecting groove 14.

[0038] A limit seat 23 is provided on the workbench 1, a first protrusion 24 is provided on the limit seat 23, a second protrusion 25 corresponding to the first protrusion 24 is slidably connected to the limit seat 23, and a limit zone for limiting the circumferential movement of the capillary is formed between the first protrusion 24 and the second protrusion 25. The second protrusion 25 is driven by an adjustment cylinder 26 to achieve movement.

[0039] The first protrusion 24 is fixedly connected with a first limiting block 27. The second protrusion 25 is fixedly connected with a second limiting block 28. A plurality of first limiting blocks 27 and a plurality of second limiting blocks 28 are staggered. A V-shaped groove is provided on one side opposite to the first limiting block 27 and the second limiting block 28, and a limiting area is formed between the two V-shaped grooves.

[0040] A protective cylinder is connected to the host 2, and a guard plate 29 is connected to the protective cylinder. A straight groove 30 is provided on the workbench 1, and the lower edge of the guard plate 29 is used to be embedded in the straight groove 30. Before the laser 3 is turned on, the guard plate 29 is first embedded in the straight groove 30 to enhance the protection of the workers.

[0041] The support seat 8 is provided with a pulling component 31 for pulling the support wire 4 out of the capillary.

[0042] When in use, the end of the support wire 4 is passed through the fixed tube 12 and connected to the extraction assembly 31, the second capillary 7 is placed between the first limit block 27 and the second limit block 28, and the second protrusion 25 is moved toward the direction close to the first protrusion 24 so that the second capillary 7 is stably placed in the limit area. Then, the power motor 22 is turned on to rotate the support wire 4, and the first capillary 6 and the second capillary 7 are rotated synchronously with the support wire 4 through the action of friction, and the laser 3 is turned on to weld the welding point.

[0043] After the welding is completed, the second protrusion 25 moves further toward the first protrusion 24, so that the second capillary 7 is clamped by the first stopper 27 and the second stopper 28, and then the clamping plate 11 is separated from the supporting wire 4. The extraction component 31 extracts the supporting wire 4 from the second capillary 7 and the first capillary 6 in turn. Due to the effect of friction, if the first capillary 6 and the second capillary 7 are separated, it means that the welding has failed. If the first capillary 6 and the second capillary 7 remain connected, it means that the welding is successful. This eliminates the tedious process of manually checking the welding firmness and extracting the supporting wire 4.

[0044] The extraction assembly 31 includes a conical sleeve 32, a drive sleeve 33, and a positioning bead 34. The piston rod of the power cylinder 10 is fixedly connected to the outer wall of the drive sleeve 33 through a fixing plate, so that the piston rod drives the drive sleeve 33 to move along the axial direction of the drive sleeve 33.

[0045] The conical sleeve 32 is slidably connected to the driving sleeve 33, and the above-mentioned support wire 4 is passed through the fixed tube 12 and then through the conical sleeve 32. The positioning beads 34 are arranged on the conical sleeve 32, and the driving sleeve 33 moves in a direction away from the clamping assembly 9 and the positioning beads 34 are pressed against the outer wall of the support wire 4 through the conductive structure 35, and the friction between the positioning beads 34 and the support wire 4 realizes the unidirectional movement of the support wire 4.

[0046] The conducting structure 35 includes a first conical surface 36, a second conical surface 37, an elastic member 38, and a limiting hole 39. The first conical surface 36 is provided on the outer wall of the conical sleeve 32, and the first conical surface 36 is coaxially arranged with the conical sleeve 32. The second conical surface 37 is provided on the inner wall of the driving sleeve 33, and the second conical surface 37 is coaxially arranged with the driving sleeve 33.

[0047] Three limiting holes 39 are formed on the first conical surface 36 and are evenly arranged along the axis of the conical sleeve 32. Three positioning beads 34 are respectively placed in the three limiting holes 39. The limiting holes 39 are connected to the inner wall of the conical sleeve 32. The two ends of the elastic member 38 are respectively connected to the conical sleeve 32 and the driving sleeve 33 and make the conical sleeve 32 have a tendency to move closer to the second conical surface 37. The elastic member 38 is a spring.

[0048] Accordingly, the power cylinder 10 is started, and the piston rod moves toward the fixed tube 12. At this time, the conical sleeve 32 moves away from the second conical surface 37. At this time, the friction force generated by the positioning bead 34 on the support wire 4 is small, so the support wire 4 does not move. When the piston rod moves away from the fixed tube 12, the second conical surface 37 applies pressure to the positioning bead 34. At the same time, with the cooperation of the elastic member 38, the positioning bead 34 is pressed against the support wire 4 through the limiting hole 39. During the movement of the driving sleeve 33, the support wire 4 moves synchronously with the driving sleeve 33. So that the support wire 4 passes through the support seat 8.

[0049] Thus, when the power cylinder 10 is started, the support wire 4 can be pumped intermittently.

[0050] After the first capillary tube 6 and the second capillary tube 7 are welded, the second protrusion 25 moves slightly toward the first protrusion 24, so that the first limit block 27 and the second limit block 28 can press the second capillary tube 7 tightly and limit the second capillary tube 7 from moving along its own axis. In order to increase the friction force, a rubber strip is fixed on the first limit block 27 and the second limit block 28 so that the rubber strip contacts the second capillary tube 7.

[0051] During the intermittent twitching of the support wire 4, the support wire 4 can exert intermittent friction force on the first capillary 6 to simulate the process of manually pulling the first capillary 6. If the first capillary 6 and the second capillary 7 are separated, it proves that the welding firmness is poor and needs to be re-welded; similarly, if the first capillary 6 and the second capillary 7 remain connected after the support wire 4 is pulled out from the first capillary 6, it proves that the welding firmness is good.

[0052] A blocking plate 40 is fixedly connected to the outer wall of the support seat 8, and a blocking hole 41 is opened on the blocking plate 40. The aperture of the blocking hole 41 is larger than the outer diameter of the supporting wire 4 and smaller than the outer diameter of the capillary. The supporting wire 4 is used to connect with the clamping assembly 9 after passing through the blocking hole 41.

[0053] In the case of poor welding firmness, the first capillary 6 and the second capillary 7 are separated, and due to the friction between the first capillary 6 and the support wire 4, the first capillary 6 will move synchronously with the support wire 4, and the first capillary 6 cannot pass through the blocking hole 41. Therefore, the first capillary 6 falls off from the support wire 4 due to the blocking of the blocking plate 40, so that it is easy to collect the first capillary 6. Then the second protrusion 25 moves away from the first protrusion 24, so that the second capillary 7 can be easily removed.

[0054] An extension seat 42 is fixedly connected to the workbench 1, and a support groove 43 for supporting the second capillary 7 is formed on the extension seat 42. The length direction of the support groove 43 is parallel to the length direction of the second capillary 7, so that a longer second capillary 7 can be supported.

[0055] Of course, the above are only typical examples of the present invention. In addition, the present invention may also have many other specific implementations. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A micro plastic tube laser welding machine, comprising a workbench (1) and a host (2) fixed on the workbench (1), a laser (3) being mounted on the host (2), a support base (8) being fixedly connected to the workbench (1), a clamping assembly (9) and a power assembly (19) for driving the clamping assembly (9) to rotate being arranged on the support base (8), wherein: Also includes A support wire (4) is used to pass through two thin tubes and contact the inner walls of the thin tubes. The clamping component (9) is connected to the support wire (4). A limit seat (23) is provided on the workbench (1). A first protrusion (24) is provided on the limit seat (23). A second protrusion (25) corresponding to the first protrusion (24) is slidably connected to the limit seat (23). A limit zone for limiting the movement of the thin tube is formed between the first protrusion (24) and the second protrusion (25). A withdrawal component (31) for withdrawing the support wire (4) from the thin tube is provided on the support seat (8).

2. The micro plastic tube laser welding machine according to claim 1 is characterized in that: The clamping assembly (9) comprises a power cylinder (10), a clamping plate (11), a fixed tube (12), a connecting ring (13), a connecting groove (14), and a sliding sleeve (15). The fixed tube (12) is fixedly connected to the support seat (8), and the sliding sleeve (15) is slidably connected to the support seat (8). The fixed tube (12) is inserted into the sliding sleeve (15), and a plurality of connecting rings (13) are fixed to the outer wall of the fixed tube (12). One end of a plurality of clamping plates (11) is hinged to the fixed tube (12), and the other end of the clamping plates (11) is used to clamp the supporting wire (4). The connecting groove (14) is provided at the end of the clamping plate (11) and is used to engage with the plurality of connecting rings (13). The power cylinder (10) is fixed to the support seat (8) and is used to drive the sliding sleeve (15) to move along the axial direction of the sliding sleeve (15).

3. The micro plastic tube laser welding machine according to claim 2 is characterized in that: The power assembly (19) comprises a first gear (20), a second gear (21) and a power motor (22); the first gear (20) is fixed on the outer wall of the sleeve (15); the power motor (22) is fixed in the support seat (8); and the second gear (21) is fixed on the power shaft of the power motor (22) and meshes with the first gear (20).

4. The micro plastic tube laser welding machine according to claim 2 is characterized in that: The extraction assembly (31) comprises a conical sleeve (32), a driving sleeve (33), and a positioning bead (34); the power cylinder (10) drives the driving sleeve (33) to move along the axial direction of the driving sleeve (33); the conical sleeve (32) is slidably connected inside the driving sleeve (33); the positioning bead (34) is arranged on the conical sleeve (32); the supporting wire (4) passes through the conical sleeve (32); the driving sleeve (33) moves in a direction away from the clamping assembly (9) and the positioning bead (34) is pressed against the outer wall of the supporting wire (4) through the conductive structure (35).

5. The micro plastic tube laser welding machine according to claim 4 is characterized in that: The conductive structure (35) comprises a first conical surface (36), a second conical surface (37), an elastic member (38), and a limiting hole (39); the first conical surface (36) is provided on the outer wall of the conical sleeve (32); the second conical surface (37) is provided on the inner wall of the driving sleeve (33); the plurality of limiting holes (39) are provided on the first conical surface (36) and are arranged along the axis of the conical sleeve (32); the positioning beads (34) are placed in the limiting holes (39); and the two ends of the elastic member (38) are respectively connected to the conical sleeve (32) and the driving sleeve (33) and cause the conical sleeve (32) to have a tendency to move closer to the second conical surface (37).

6. The micro plastic tube laser welding machine according to claim 1 is characterized in that: A blocking plate (40) is fixedly connected to the outer wall of the support seat (8), and a blocking hole (41) is formed on the blocking plate (40). The diameter of the blocking hole (41) is larger than the outer diameter of the support wire (4) and smaller than the outer diameter of the capillary. The support wire (4) is connected to the clamping assembly (9) after passing through the blocking hole (41).

7. The micro plastic tube laser welding machine according to claim 1 is characterized in that: The outer wall of the support wire (4) is provided with a friction ring groove (5), and a plurality of the friction ring grooves (5) are arranged along the length direction of the support wire (4).

8. The micro plastic tube laser welding machine according to claim 5 is characterized in that: The first protrusion (24) is fixedly connected to a first limiting block (27), and the second protrusion (25) is fixedly connected to a second limiting block (28). A plurality of the first limiting blocks (27) and a plurality of the second limiting blocks (28) are staggered. A V-shaped groove is provided on one side opposite to the first limiting block (27) and the second limiting block (28), and the limiting area is formed between the two V-shaped grooves.

9. The micro plastic tube laser welding machine according to claim 1 is characterized in that: An extension seat (42) is fixedly connected to the workbench (1), and a support groove (43) for supporting the capillary is provided on the extension seat (42).

10. The micro plastic tube laser welding machine according to claim 1 is characterized in that: The main machine (2) is connected to a protective cylinder, which is connected to a protective plate (29). A straight groove (30) is provided on the workbench (1), and the lower edge of the protective plate (29) is used to be embedded in the straight groove (30).

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