A precision laser cutting device and a method for cutting a metal capillary tube

Abstract

The application relates to the technical field of laser cutting, in particular to a precise laser cutting equipment and a cutting method of a metal capillary tube, which comprises a cabinet body and a bottom plate fixed in the cabinet body, and further comprises: a first vertical plate fixed on the bottom plate and a second vertical plate movably arranged on the bottom plate, clamping mechanisms for clamping the metal capillary tube are arranged on the first vertical plate and the second vertical plate; a horizontal arm movably arranged on the bottom plate and a laser cutting head installed on the horizontal arm, the horizontal arm can be driven by two groups of second linear driving modules arranged on the bottom plate to drive the laser cutting head to perform a lifting action; by arranging two opposite first vertical plates and second vertical plates and arranging a group of clamping mechanisms capable of clamping the metal capillary tube on the two vertical plates, multi-point clamping of the metal capillary tube is realized in the process of laser cutting, the problem that the metal capillary tube is prone to drooping due to single-point clamping and thus the laser cutting effect is poor is prevented.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, specifically a precision laser cutting device and a method for cutting metal capillaries. Background Technology

[0002] Laser cutting technology, as a core method of modern precision machining, relies on the principle of instantaneous interaction between a high-energy-density laser beam and the workpiece, possessing significant advantages such as high precision, small heat-affected zone, and no mechanical contact stress. In the field of medical devices, metal capillaries, due to their excellent biocompatibility and precise dimensional characteristics, are widely used in key medical components such as minimally invasive puncture needles and interventional catheters. In the manufacturing process of metal capillaries, laser cutting technology is required to precisely segment the metal capillaries, ensuring they meet the stringent length specifications required for medical use.

[0003] Existing laser cutting equipment generally uses a clamping and positioning method, which allows the metal capillary to extend beyond the required size before laser cutting. However, the metal capillary itself has an extremely small diameter, and with a certain overhang length, it is easy for the metal capillary to sag during laser cutting. This sag phenomenon makes it impossible for the laser beam to maintain precise perpendicularity with the cutting surface of the metal capillary during the laser cutting process, resulting in uneven distribution of laser cutting energy. This leads to laser cutting quality defects such as tilted cutting end face, increased burrs, and dimensional deviations, which seriously affect the laser cutting effect of the metal capillary and the product qualification rate. Summary of the Invention

[0004] The purpose of this invention is to provide a precision laser cutting device and a method for cutting metal capillaries, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A precision laser cutting device includes a cabinet and a base plate fixed inside the cabinet, and further includes: A first vertical plate fixed to the base plate and a second vertical plate movably disposed on the base plate and opposite to the first vertical plate are provided on both the first vertical plate and the second vertical plate. A clamping mechanism for clamping the metal capillary is provided on both the first vertical plate and the second vertical plate. The horizontal arm is mounted on the base plate and the laser cutting head is mounted on the horizontal arm. The horizontal arm can be driven by two sets of second linear drive modules mounted on the base plate, which drive the laser cutting head to perform lifting and lowering actions. The transverse sliding seat is movable on the base plate. The transverse sliding seat can be driven by the first linear drive module on the base plate and move along the length direction of the base plate. The transverse sliding seat is provided with two sets of elastic mechanisms, and the second vertical plate is connected to the two sets of elastic mechanisms. Two push arms are respectively slidably located at both ends of the transverse base and connected to two sets of elastic mechanisms. The transverse arm is connected to the two push arms respectively through two sets of transmission mechanisms. When the laser cutting head descends, the transmission mechanism is triggered, which can drive the push arm to slide relative to the transverse base and cause the elastic mechanism to store elastic potential energy.

[0006] As described above, the precision laser cutting equipment includes a clamping mechanism comprising a disc rotatably mounted on the first vertical plate and a plurality of arc-shaped clamping blocks disposed on the disc. The plurality of arc-shaped clamping blocks are equidistantly distributed along the circumference, and each is connected to a set of elastic mounting structures disposed on the disc. The plurality of elastic mounting structures cooperate with a driving component disposed on the first vertical plate, and the driving component can drive the arc-shaped clamping blocks to move radially along the disc through the elastic mounting structures.

[0007] As described above, the precision laser cutting equipment includes: a radially distributed slide rail on the disc; an elastic mounting structure including a driven arm slidably fitted within the slide rail; the driven arm being fixed to the arc-shaped clamping block; a driven block being fixedly mounted at one end of the driven arm away from the arc-shaped clamping block; the driven block cooperating with the drive assembly; and two sets of elastic connecting members between the driven arm and the disc. The elastic connector includes a guide rod fixed to the side of the driven boom by a protrusion and a first spring sleeved on the outer periphery of the guide rod. The guide rod passes through a protrusion fixed on the disc and is slidably connected to the protrusion. The two ends of the first spring are respectively connected to the protrusion and the protrusion.

[0008] As described above, the precision laser cutting equipment includes two cylinders fixedly mounted on the first vertical plate and a drive ring fixedly connected to the movable ends of the two cylinders. The drive ring is concentric with the disk, and the drive ring has a first inclined surface at one end facing the driven block, and the driven block has a second inclined surface on one side facing the drive ring. The first inclined surface and the second inclined surface slide against each other.

[0009] As described above, the precision laser cutting equipment includes a power mechanism for driving the disk to rotate, which is mounted on the first vertical plate. The power mechanism includes a gear rotatably mounted on the first vertical plate and a gear ring fixed on the disk and meshing with the gear. A drive motor with its output end connected to the gear's rotating shaft is also mounted on the first vertical plate.

[0010] The precision laser cutting equipment described above: a guide rail is fixedly provided on the base plate, the guide rail is arranged along the width direction of the base plate, and the transmission mechanism includes a movable seat that is slidably fitted on the guide rail and a driven plate fixed on the movable seat; The driven plate is provided with an inclined through groove, and the cross arm is fixedly provided with a protrusion adapted to the inclined through groove. The protrusion passes through the inclined through groove and is slidably connected to the driven plate.

[0011] As described above, the precision laser cutting equipment includes a transmission arm fixedly mounted on the movable seat. The transmission arm has a strip-shaped through groove along its length. The push arm is fixedly connected to a transmission column adapted to the strip-shaped through groove. The transmission column passes through the strip-shaped through groove and is slidably connected to the transmission arm.

[0012] The precision laser cutting equipment described above: the elastic mechanism includes an assembly plate fixed to the transverse support and having a hollow interior, and a first slider and a second slider slidably disposed within the assembly plate; The second slider is fixed to the second upright plate, and the assembly plate is also provided with an energy storage component that connects the first slider and the second slider.

[0013] As described above, the precision laser cutting equipment includes a horizontal shaft fixed inside the assembly plate and a second spring sleeved on the outer periphery of the horizontal shaft. The first slider and the second slider are slidably connected to the horizontal shaft, and the two ends of the second spring are respectively connected to the first slider and the second slider. The first slider and the push arm are connected by a connecting rod, and the two ends of the connecting rod are respectively hinged to the first slider and the push arm.

[0014] A method for cutting metal capillaries, using the aforementioned precision laser cutting equipment, includes the following steps: Step 1: The first linear drive module operates to adjust the distance between the first and second upright plates; Step two: The two clamping mechanisms clamp and fix the metal capillary tube. Step 3: The second linear drive module drives the cross arm to move the laser cutting head toward the metal capillary, triggering the transmission mechanism to cause the elastic mechanism to store elastic potential energy. Step four: The metal capillary rotates once to complete the cutting. Step 5: Remove the metal capillary tube cut off from the second upright plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention sets up two opposing first and second upright plates, and on each plate is a clamping mechanism capable of holding a metal capillary. The second upright plate can be driven by a first linear drive module to adjust the distance between the two clamping mechanisms to accommodate laser cutting of different segment lengths of the metal capillary. Therefore, during the laser cutting process, multi-point clamping of the metal capillary is achieved, preventing the metal capillary from sagging due to single-point clamping, which would otherwise lead to poor laser cutting results. Secondly, after the metal capillary is clamped, during the descent of the laser cutting head, the transmission mechanism can drive the push arm to slide relative to the transverse seat, causing the second spring to be gradually compressed and storing elastic potential energy. This allows the clamping mechanism on the second vertical plate to apply an axial tension to the metal capillary. On the one hand, this ensures the straightness of the metal capillary during laser cutting; on the other hand, it allows the metal capillary to be quickly separated from the residue after being cut, preventing the problem of slag adhesion and further improving the cutting effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of one embodiment of a precision laser cutting equipment.

[0017] Figure 2 This is a structural schematic diagram from another angle of one embodiment of a precision laser cutting equipment.

[0018] Figure 3 This is a schematic diagram of the structure of a precision laser cutting equipment after the cabinet has been removed, according to one embodiment.

[0019] Figure 4 for Figure 3 A structural diagram from another angle.

[0020] Figure 5 This is a schematic diagram of the clamping mechanism in one embodiment of a precision laser cutting equipment.

[0021] Figure 6 This is an exploded view of the clamping mechanism in one embodiment of a precision laser cutting equipment.

[0022] Figure 7 for Figure 6 A structural diagram from another angle.

[0023] Figure 8 This is a schematic diagram of the transmission mechanism in one embodiment of a precision laser cutting equipment.

[0024] Figure 9 This is a schematic diagram showing the connection state between two sets of elastic mechanisms and the second vertical plate in one embodiment of a precision laser cutting equipment.

[0025] Figure 10 for Figure 9 A structural diagram from another angle.

[0026] In the diagram: 1. Cabinet; 2. Base plate; 3. Laser cutting head; 4. First upright plate; 401. Guide ring; 5. Second upright plate; 6. First linear drive module; 7. Second linear drive module; 8. Disc; 801. Slide rail; 802. Protrusion; 803. Annular protrusion; 9. Cylinder; 10. Drive ring; 1001. First inclined surface; 11. Drive motor; 12. Gear; 13. Gear ring; 14. Driven arm; 1401. Protruding block; 15. Arc-shaped clamping block; 16. 17. Guide rod; 18. Driven block; 19. Second inclined surface; 10. Cross arm; 11. Protruding column; 12. Driven plate; 13. Inclined through slot; 24. Guide rail; 25. Movable seat; 26. Transmission arm; 27. Strip through slot; 28. Transverse sliding seat; 29. ​​Guide component; 20. Push arm; 21. Transmission column; 22. First spring; 23. Second spring; 34. Assembly plate; 35. First slider; 36. Second slider; 37. Horizontal shaft; 38. Connecting rod. Detailed Implementation

[0027] 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.

[0028] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0029] Please see Figures 1-10 In this embodiment, a precision laser cutting device includes a cabinet 1 and a base plate 2 fixed inside the cabinet 1, and further includes: The first vertical plate 4 is fixed on the base plate 2 and the second vertical plate 5 is movably disposed on the base plate 2 and opposite to the first vertical plate 4. Both the first vertical plate 4 and the second vertical plate 5 are provided with clamping mechanisms for clamping the metal capillary. The horizontal arm 18 is movable on the base plate 2 and the laser cutting head 3 is mounted on the horizontal arm 18. The horizontal arm 18 can be driven by two sets of second linear drive modules 7 on the base plate 2, which drive the laser cutting head 3 to perform lifting and lowering actions. The transverse sliding seat 23 is movably mounted on the base plate 2. The transverse sliding seat 23 can be driven by the first linear drive module 6 mounted on the base plate 2 and move along the length direction of the base plate 2. The transverse sliding seat 23 is provided with two sets of elastic mechanisms, and the second vertical plate 5 is connected to the two sets of elastic mechanisms. Two push arms 24 are respectively slidably disposed at both ends of the transverse base 23 and connected to two sets of elastic mechanisms. The transverse arm 18 is connected to the two push arms 24 respectively through two sets of transmission mechanisms. When the laser cutting head 3 descends, the transmission mechanism is triggered, which can drive the push arms 24 to slide relative to the transverse base 23 and cause the elastic mechanism to store elastic potential energy.

[0030] In this embodiment, it should be noted that a guide member 2301 is fixed at each end of the transverse seat 23. The guide member 2301 is used to guide the push arm 24 so that when the transmission mechanism is triggered, the push arm 24 can slide relative to the transverse seat 23 along the length direction of the transverse seat 23. Secondly, the first linear drive module 6 and the second linear drive module 7 are applications of existing technology. Both are driven by a lead screw and a servo motor. When the equipment is working, they are used to drive the transverse shift seat 23 to move along the length direction of the base plate 2 and to drive the transverse arm 18 to rise and fall, respectively.

[0031] As a further aspect of the present invention, the clamping mechanisms on the first upright plate 4 and the second upright plate 5 are identical. The clamping mechanism on the first upright plate 4 will be described in detail below: Please refer to it again. Figure 5 , Figure 6 as well as Figure 7 The clamping mechanism includes a disc 8 rotatably mounted on the first upright plate 4 and a plurality of arc-shaped clamping blocks 15 disposed on the disc 8. The plurality of arc-shaped clamping blocks 15 are equidistantly distributed along the circumference, and each is connected to a set of elastic mounting structures disposed on the disc 8. The plurality of elastic mounting structures cooperate with a driving component disposed on the first upright plate 4. The driving component can drive the arc-shaped clamping blocks 15 to move radially along the disc 8 through the elastic mounting structures.

[0032] In detail, a guide ring 401 is fixedly provided on the first upright plate 4, and an annular protrusion 803 adapted to the guide ring 401 is provided on the side of the disc 8 facing the first upright plate 4. The annular protrusion 803 is embedded in the guide ring 401 and is slidably connected with the guide ring 401. The disk 8 is provided with radially distributed slide rails 801. The elastic mounting structure includes a driven arm 14 that is slidably fitted into the slide rails 801. The driven arm 14 is fixed to the arc-shaped clamping block 15. A driven block 17 is fixedly installed at one end of the driven arm 14 away from the arc-shaped clamping block 15. The driven block 17 cooperates with the drive assembly. Two sets of elastic connecting members are also provided between the driven arm 14 and the disk 8. The elastic connector includes a guide rod 16 fixed to the side of the driven arm 14 via a protrusion 1401 and a first spring 26 sleeved on the outer periphery of the guide rod 16. The guide rod 16 passes through a protrusion 802 fixed on the disc 8 and is slidably connected to the protrusion 802. The two ends of the first spring 26 are respectively connected to the protrusion 1401 and the protrusion 802. The drive assembly includes two cylinders 9 fixedly mounted on the first vertical plate 4 and a drive ring 10 fixedly connected to the movable ends of the two cylinders 9. The drive ring 10 is concentric with the disc 8, and the end of the drive ring 10 facing the driven block 17 has a first inclined surface 1001, and the side of the driven block 17 facing the drive ring 10 has a second inclined surface 1701. The first inclined surface 1001 and the second inclined surface 1701 are slidably fitted together.

[0033] As a further embodiment of the present invention, the first upright plate 4 is also equipped with a power mechanism for driving the disk 8 to rotate. The power mechanism includes a gear 12 rotatably mounted on the first upright plate 4 and a gear ring 13 fixed on the disk 8 and meshing with the gear 12. The first upright plate 4 is also equipped with a drive motor 11 whose output end is connected to the rotating shaft of the gear 12.

[0034] During operation, the metal capillary to be cut is placed between multiple arc-shaped clamping blocks 15 on the first vertical plate 4. The overhang length of the metal capillary is adjusted, and then the clamping mechanism on the first vertical plate 4 clamps the metal capillary. Subsequently, the first linear drive module 6 works, driving the transverse shift seat 23 to move the second vertical plate 5 toward the first vertical plate 4, so that the clamping mechanism on the second vertical plate 5 clamps one end of the metal capillary that extends out. Regarding the clamping process of the metal capillary, taking the clamping mechanism on the first vertical plate 4 as an example, specifically, the cylinder 9 drives the drive ring 10 to move away from the first vertical plate 4. As a result, the drive ring 10 can cause the driven block 17 to give way through the first inclined surface 1001 and the second inclined surface 1701, so that the driven arm 14 drives the arc-shaped clamping block 15 to move toward the metal capillary. Finally, the arc-shaped clamping block 15 contacts the outer wall of the metal capillary, so that the metal capillary is clamped and fixed. After the metal capillary is fixed, the second linear drive module 7 drives the horizontal arm 18 to move the laser cutting head 3 downward, so that the laser cutting head 3 maintains a suitable cutting distance between the outer wall of the metal capillary. The drive motor 11 works, driving the gear 12 to drive the disk 8 to rotate through the gear ring 13, thereby making the metal capillary rotate in seven processes. After the metal capillary rotates one revolution, the cutting process is completed.

[0035] To address this, the present invention provides two opposing first upright plates 4 and second upright plates 5, each with a clamping mechanism capable of holding the metal capillary. The second upright plate 5 can be driven by the first linear drive module 6 to adjust the distance between the two clamping mechanisms, thus adapting to laser cutting of different segment lengths of the metal capillary. Therefore, during the laser cutting process, multi-point clamping of the metal capillary is achieved, preventing the metal capillary from sagging due to single-point clamping, which would otherwise lead to poor laser cutting results.

[0036] As a further embodiment of the present invention, please refer again. Figure 4 and Figure 8 The base plate 2 is fixedly provided with a guide rail 20, which is arranged along the width direction of the base plate 2. The transmission mechanism includes a movable seat 21 that is slidably fitted on the guide rail 20 and a driven plate 19 fixed on the movable seat 21. The driven plate 19 is provided with an inclined through groove 1901, and a protrusion 1801 that is adapted to the inclined through groove 1901 is fixedly provided on the cross arm 18. The protrusion 1801 passes through the inclined through groove 1901 and is slidably connected to the driven plate 19.

[0037] A transmission arm 22 is also fixedly installed on the movable seat 21. The transmission arm 22 has a strip-shaped through groove 2201 along its own length direction. The push arm 24 is fixedly connected to a transmission column 25 that is adapted to the strip-shaped through groove 2201. The transmission column 25 passes through the strip-shaped through groove 2201 and is slidably connected to the transmission arm 22.

[0038] In this embodiment, after the metal capillary is clamped, the second linear drive module 7 drives the horizontal arm 18 to lower the laser cutting head 3. As the head approaches the outer wall of the metal capillary, the protrusion 1801 slides with the driven plate 19 through the inclined through slot 1901, causing the driven plate 19 to drive the movable seat 21 to slide towards the middle of the base plate 2 within the guide rail 20. Correspondingly, the transmission arm 22 moves together with the movable seat 21 and drives the push arm 24 to slide relative to the transverse seat 23 through the transmission column 25. Specifically, the push arm 24 slides towards the center of the transverse seat 23, causing the elastic mechanism to store elastic potential energy. This allows the clamping mechanism on the second vertical plate 5 to apply an axial tension to the metal capillary, thereby ensuring that the metal capillary remains straight during laser cutting.

[0039] In this process, when the first linear drive module 6 drives the transverse seat 23 to move along the length of the base plate 2 to adjust the distance between the two sets of clamping mechanisms, the transmission column 25 slides within the strip-shaped through groove 2201.

[0040] As a further embodiment of the present invention, please refer again. Figure 9 and Figure 10 The elastic mechanism includes an assembly plate 28 fixed to the transverse seat 23 and hollow inside, and a first slider 29 and a second slider 30 slidably disposed in the assembly plate 28. The second slider 30 is fixed to the second upright plate 5, and the assembly plate 28 is also provided with an energy storage component that connects the first slider 29 and the second slider 30.

[0041] The energy storage component includes a horizontal shaft 31 fixed inside the assembly plate 28 and a second spring 27 sleeved on the outer periphery of the horizontal shaft 31. The first slider 29 and the second slider 30 are both slidably connected to the horizontal shaft 31, and the two ends of the second spring 27 are respectively connected to the first slider 29 and the second slider 30. A connecting rod 32 is provided between the first slider 29 and the push arm 24, and the two ends of the connecting rod 32 are respectively hinged to the first slider 29 and the push arm 24.

[0042] In this embodiment, during the downward movement of the laser cutting head 3, when the pushing arm 24 slides on the transverse seat 23 toward the center of the transverse seat 23, the pushing arm 24 can push the first slider 29 toward the second slider 30 through the connecting rod 32, so that the second spring 27 is compressed. Thus, the second spring 27 stores elastic potential energy, which enables the clamping mechanism on the second vertical plate 5 to apply an axial tension to the metal capillary. In response, after the metal capillary is clamped, during the descent of the laser cutting head 3, the transmission mechanism can drive the push arm 24 to slide relative to the transverse seat 23, causing the second spring 27 to be gradually compressed and storing elastic potential energy. This allows the clamping mechanism on the second vertical plate 5 to apply an axial tension to the metal capillary. On the one hand, this ensures the straightness of the metal capillary during laser cutting; on the other hand, it allows the metal capillary to be quickly separated from the residue after being cut, preventing the problem of slag adhesion and further improving the cutting effect.

[0043] A method for cutting metal capillaries, using the aforementioned precision laser cutting equipment, includes the following steps: Step 1: The first linear drive module 6 operates to adjust the distance between the first upright plate 4 and the second upright plate 5; Step two: The two clamping mechanisms clamp and fix the metal capillary tube. Step 3: The second linear drive module 7 drives the horizontal arm 18 to move the laser cutting head 3 toward the metal capillary, triggering the transmission mechanism and causing the elastic mechanism to store elastic potential energy. Step four: The metal capillary rotates once to complete the cutting. Step 5: Remove the metal capillary tube cut off from the second vertical plate 5.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A precision laser cutting device, comprising a cabinet and a base plate fixed inside the cabinet; Its features are, Also includes: A first vertical plate fixed to the base plate and a second vertical plate movably disposed on the base plate and opposite to the first vertical plate are provided on both the first vertical plate and the second vertical plate. A clamping mechanism for clamping the metal capillary is provided on both the first vertical plate and the second vertical plate. The horizontal arm is mounted on the base plate and the laser cutting head is mounted on the horizontal arm. The horizontal arm can be driven by two sets of second linear drive modules mounted on the base plate, which drive the laser cutting head to perform lifting and lowering actions. The transverse sliding seat is movable on the base plate. The transverse sliding seat can be driven by the first linear drive module on the base plate and move along the length direction of the base plate. The transverse sliding seat is provided with two sets of elastic mechanisms, and the second vertical plate is connected to the two sets of elastic mechanisms. Two push arms are respectively slidably located at both ends of the transverse base and connected to two sets of elastic mechanisms. The transverse arm is connected to the two push arms respectively through two sets of transmission mechanisms. When the laser cutting head descends, the transmission mechanism is triggered, which can drive the push arm to slide relative to the transverse base and cause the elastic mechanism to store elastic potential energy. A guide rail is fixedly provided on the base plate. The guide rail is arranged along the width direction of the base plate. The transmission mechanism includes a movable seat that is slidably fitted on the guide rail and a driven plate fixed on the movable seat. The driven plate is provided with an inclined through groove, and a protrusion adapted to the inclined through groove is fixed on the cross arm. The protrusion passes through the inclined through groove and is slidably connected to the driven plate. The elastic mechanism includes an assembly plate fixed to the transverse seat and hollow inside, and a first slider and a second slider slidably disposed in the assembly plate; wherein, the second slider is fixed to the second vertical plate, and the assembly plate is also provided with an energy storage component connecting the first slider and the second slider; The energy storage component includes a horizontal shaft fixed inside the assembly plate and a second spring sleeved on the outer periphery of the horizontal shaft. The first slider and the second slider are both slidably connected to the horizontal shaft. The two ends of the second spring are respectively connected to the first slider and the second slider. A connecting rod is provided between the first slider and the push arm, and the two ends of the connecting rod are respectively hinged to the first slider and the push arm.

2. The precision laser cutting equipment according to claim 1, characterized in that, The clamping mechanism includes a disc rotatably mounted on the first upright plate and a plurality of arc-shaped clamping blocks disposed on the disc. The plurality of arc-shaped clamping blocks are equidistantly distributed along the circumference, and each is connected to a set of elastic mounting structures disposed on the disc. The plurality of elastic mounting structures cooperate with a drive assembly disposed on the first upright plate. The drive assembly can drive the arc-shaped clamping blocks to move radially along the disc through the elastic mounting structures.

3. The precision laser cutting equipment according to claim 2, characterized in that, The disk is provided with radially distributed slide rails. The elastic mounting structure includes a driven arm that is slidably fitted into the slide rails. The driven arm is fixed to the arc-shaped clamping block. A driven block is fixedly installed at the end of the driven arm away from the arc-shaped clamping block. The driven block cooperates with the drive assembly. Two sets of elastic connecting members are also provided between the driven arm and the disk. The elastic connector includes a guide rod fixed to the side of the driven boom by a protrusion and a first spring sleeved on the outer periphery of the guide rod. The guide rod passes through a protrusion fixed on the disc and is slidably connected to the protrusion. The two ends of the first spring are respectively connected to the protrusion and the protrusion.

4. The precision laser cutting equipment according to claim 3, characterized in that, The drive assembly includes two cylinders fixedly mounted on the first upright plate and a drive ring fixedly connected to the movable ends of the two cylinders. The drive ring is concentric with the disk, and the drive ring has a first inclined surface at one end facing the driven block, and the driven block has a second inclined surface on one side facing the drive ring. The first inclined surface and the second inclined surface slide against each other.

5. A precision laser cutting device according to claim 2, characterized in that, The first upright plate is also equipped with a power mechanism for driving the disk to rotate. The power mechanism includes a gear rotatably mounted on the first upright plate and a gear ring fixed on the disk and meshing with the gear. The first upright plate is also equipped with a drive motor whose output end is connected to the rotating shaft of the gear.

6. The precision laser cutting equipment according to claim 1, characterized in that, A transmission arm is also fixedly installed on the movable seat. The transmission arm has a strip-shaped through groove along its own length. The push arm is fixedly connected to a transmission column that is adapted to the strip-shaped through groove. The transmission column passes through the strip-shaped through groove and is slidably connected to the transmission arm.

7. A method for cutting metal capillaries, using a precision laser cutting device as described in any one of claims 1-5, characterized in that, Includes the following steps: Step 1: The first linear drive module operates to adjust the distance between the first and second upright plates; Step two: The two clamping mechanisms clamp and fix the metal capillary tube. Step 3: The second linear drive module drives the cross arm to move the laser cutting head toward the metal capillary, triggering the transmission mechanism to cause the elastic mechanism to store elastic potential energy. Step four: The metal capillary rotates once to complete the cutting. Step 5: Remove the metal capillary tube cut off from the second upright plate.

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