Multi-pulse femtosecond laser grain cutting device

Abstract

The invention discloses a multi-pulse femtosecond laser grain cutting device and relates to the technical field of grain cutting, the multi-pulse femtosecond laser grain cutting device is used for laser cutting of explosive grains, and the multi-pulse femtosecond laser grain cutting device comprises a platform base, a working platform, a finished product hopper, a stand column, a cross beam, a transverse feeding linear motor, a laser generator, a laser cutting module and a feeding module. The platform base is provided with a bevel discharging groove and fixedly connected with the finished product hopper, the working platform is arranged at the top end of the platform base and provided with a discharging port, the discharging port of the working platform is located above the bevel discharging groove of the platform base, the working platform is fixedly connected with the feeding module, and the stand columns are arranged at the two ends of the working platform respectively. The top ends of the two stand columns are fixedly connected with the cross beam, the cross beam is fixedly connected with the transverse feeding linear motor, the laser generator is fixedly connected with a tray of the transverse feeding linear motor, and the laser cutting module is fixedly connected with the tray of the transverse feeding linear motor.

Description

Technical Field

[0001] The invention relates to the technical field of drug column cutting, in particular to a multi-pulse femtosecond laser drug column cutting device. Background Art

[0002] Explosive components (charge columns) with high-precision structures are very important for improving the destructive performance of weapons. Since explosives themselves are dangerous, it has always been a technical problem to perform high-safety and high-precision cutting (cutting) of explosives.

[0003] When using traditional cutting methods, the heat generated during the cutting process will be continuously transferred to the explosives in contact. When the heat absorbed by the explosives being processed reaches a certain range, its thermal and mechanical sensitivity will increase, and its stability will decrease, making it easy to react or even detonate. Due to safety factors, the cutting of high-energy explosives is subject to many restrictions.

[0004] The present invention utilizes a high-power femtosecond laser to instantly turn the explosive in its focal area into a high-temperature and high-pressure plasma to achieve ablation and removal of the explosive, thereby cutting the explosive column. In the process of femtosecond laser processing of materials, the time scale for the processed material to form plasma is much shorter than the time scale for the femtosecond laser energy to be transferred to the surrounding area of ​​the processed area, so the material around the processed area is not easily affected by heat conduction. Summary of the invention

[0005] The purpose of the present invention is to provide a multi-pulse femtosecond laser cutting drug column device to solve the problems raised in the prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-pulse femtosecond laser cutting charge column device, which is used for laser cutting of explosive charge columns. The charge column cutting device includes a platform base, a working platform, a finished product hopper, a column, a crossbeam, a transverse feed linear motor, a laser generator, a laser cutting module and a feeding module. The platform base is placed on a plane, the platform base is provided with an inclined discharge trough, the platform base is fixedly connected to the finished product hopper, a working platform is provided at the top of the platform base, the working platform is provided with a discharge port, the discharge port of the working platform is located above the inclined discharge trough of the platform base, the working platform is fixedly connected to the feeding module, columns are respectively provided at both ends of the working platform, the tops of the two columns are fixedly connected to the crossbeam, the crossbeam is fixedly connected to the transverse feed linear motor, the laser generator is fixedly connected to the tray of the transverse feed linear motor, and the laser cutting module is fixedly connected to the tray of the transverse feed linear motor.

[0007] The material of the columns, working platform and crossbeam is marble. Explosive columns are dangerous goods. Heat accumulation and mechanical vibration must be strictly controlled during the cutting process to prevent accidental explosion. Marble has good thermal stability and high rigidity, which can effectively reduce thermal deformation and vibration, and reduce safety risks during the cutting process. The laser generator can generate a laser beam. A mechanical arm is used to place the explosive columns on the feeding module. The feeding module sends the explosive columns to the bottom of the laser cutting module for cutting. The laser cutting module moves on the transverse feed linear motor for cutting. The cut explosive columns fall from the discharge port of the working platform into the inclined discharge trough of the platform base. The explosive columns roll into the finished product hopper from the outlet at the other end of the inclined discharge trough of the platform base.

[0008] Furthermore, the laser cutting module includes a fixed frame, a lifting hydraulic cylinder and a laser cutting head. The fixed frame is fixedly connected to the tray of the transverse feed linear motor, the lifting hydraulic cylinder is fixedly connected to the fixed frame, and the telescopic end of the lifting hydraulic cylinder passes through the fixed frame and is fixedly connected to the laser cutting head; the laser beam generated by the laser generator is transmitted to the laser cutting head, and the laser cutting head processes the explosive column through multi-pulse laser cutting.

[0009] Furthermore, the feeding module includes a mobile platform, a longitudinal feed linear motor, a clamping module and an anti-deviation module. Longitudinal feed linear motors are respectively arranged at both ends of the discharge port of the working platform. The trays of the two longitudinal feed linear motors are fixedly connected to the mobile platform. The mobile platform is provided with a V-shaped groove. The clamping module is fixedly connected to the mobile platform, and the anti-deviation module is fixedly connected to the mobile platform. The longitudinal feed linear motor controls the movement of the mobile platform to deliver the explosive column to the bottom of the laser cutting head at a fixed point. The explosive column is placed in the V-shaped groove of the mobile platform. The V-shaped groove of the mobile platform can keep the explosive column horizontal. The clamping module is used to fix the explosive column in the V-shaped groove. The anti-deviation module is used to hold up the explosive column away from one end of the clamping module to prevent deviation during cutting.

[0010] Furthermore, the clamping module includes a clamping cylinder, a fixed block and a chuck, the two ends of the chuck are respectively fixedly connected to the fixed blocks, the end of the fixed block away from the chuck is fixedly connected to the telescopic end of the clamping cylinder, and the clamping cylinder is fixedly connected to the moving platform; the fixed block fixes the chuck on the clamping cylinder, and the two clamping cylinders control the clamping of the chuck.

[0011] Furthermore, the chuck comprises a concave block and a convex block, the concave block is fixedly connected to a fixed block, and the convex block is fixedly connected to another fixed block; the two clamping cylinders facilitate control of the clamping of the concave block and the convex block.

[0012] Furthermore, clamping bosses are provided at both ends of the concave block, and engaging grooves are provided between the clamping bosses of the concave block. A fixing boss is provided on the convex block, and avoidance grooves are provided at both ends of the convex block. The clamping boss of the concave block can fit with the avoidance groove of the convex block, and the fixing boss of the convex block can fit with the engaging groove of the concave block; the concave block and the convex block can fit together and can clamp explosive columns of different sizes. The clamping boss of the concave block and the fixing boss of the convex block fix the explosive column through an inclined surface, and the inclined surface provides a downward component of force so that the explosive column is close to the V-shaped groove of the moving platform.

[0013] Furthermore, the anti-deviation module includes an anti-deviation cylinder, a support block, a limiting assembly and a pressing assembly. Both ends of the pressing assembly are respectively hinged to the limiting assemblies, one end of the limiting assembly away from the pressing assembly is fixedly connected to the support block, one end of the support block away from the limiting assembly is fixedly connected to the anti-deviation cylinder, and the anti-deviation cylinder is fixedly connected to the moving platform; the support block fixes the limiting assembly on the anti-deviation cylinder, the limiting assembly is used to support the explosive column, and the pressing assembly can press the explosive column downward.

[0014] Furthermore, the limit assembly includes a mounting block, an adjusting threaded column, a connecting block, an adjusting block, a connecting rod, a conical block and a mounting base, the mounting block is provided with a slide groove, the adjusting threaded column passes through the slide groove of the mounting block and is rotatably connected to the mounting base, the adjusting threaded column is rotatably connected to the mounting block, the adjusting block is fixedly connected to the end of the adjusting threaded column away from the mounting base, the bottom of the adjusting block fits the mounting block, the connecting block is provided with a threaded hole, the threaded hole of the connecting block is threadedly connected to the adjusting threaded column, the connecting block is slidably connected to the slide groove of the mounting block, a connecting bracket is provided at one end of the connecting block close to the pressing assembly, the connecting block is hinged to the connecting rod through the connecting bracket, and the connecting rod is away from one end of the connecting block It is hinged with the pressing down assembly, and conical blocks are respectively arranged at both ends of the mounting block; the adjusting thread column controls the connecting block to slide in the sliding groove of the mounting block, the adjusting block is used to rotate the adjusting thread column, and a fixing nut is arranged on the adjusting thread column, and the fixing nut cooperates with the adjusting block to fix the adjusting thread column on the mounting block, the connecting block is used to control the lifting and lowering of the pressing down assembly, and adjust the height of the pressing down assembly to clamp explosive columns of different sizes, the connecting rod is used to connect the pressing down assembly, and a plurality of conical blocks cooperate with the pressing down assembly to keep the explosive column horizontal, the conical blocks can clamp and support the explosive column, and when the conical blocks are clamped, the explosive column will slide upward along the conical surface, and the pressing down assembly will press the sliding explosive column downward to the horizontal.

[0015] Furthermore, the pressing assembly includes a pressing block, an arc-shaped spring piece, a limiting threaded column, an adjusting nut and a connecting column, the two ends of the pressing block are respectively hinged with the connecting rod, the two ends of the pressing block are respectively provided with a U-shaped groove, the pressing block is fixedly connected to the arc-shaped spring piece, the two ends of the arc-shaped spring piece are respectively provided with a limiting hole, the limiting hole of the arc-shaped spring piece is rotatably connected to the connecting column, the two ends of the arc-shaped spring piece are respectively provided with an avoidance groove, the limiting threaded column passes through the U-shaped groove of the pressing block and the avoidance groove of the arc-shaped spring piece in sequence, the limiting threaded column is fixedly connected to the connecting column, and the limiting threaded column is fixedly connected to the connecting column. The end of the column away from the connecting column is threadedly connected to the adjusting nut; the arc-shaped spring piece fits with the explosive column, and the limiting threaded column can adjust the curvature of the arc-shaped spring piece so as to fit with explosive columns of different diameters. The limiting threaded column is connected to the arc-shaped spring piece through the connecting column. When adjusting the curvature of the arc-shaped spring piece, the limiting threaded column will slide on the pressing block, and the U-shaped groove of the pressing block facilitates the sliding of the limiting threaded column, and the limiting threaded column will rotate with the connecting column when adjusted. The avoidance groove of the arc-shaped spring piece facilitates the rotation of the connecting column, and the adjusting nut is rotated to adjust the limiting threaded column.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The chuck can be interlocked to improve the positioning accuracy and stability during clamping;

[0018] 2. When the limit assembly is clamped, it can hold up the explosive column and cooperate with the pressing assembly to keep the explosive column level;

[0019] 3. The pressing assembly has a self-adjusting function so as to clamp explosive columns of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a working schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the platform base structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the clamping module of the present invention;

[0023] Figure 4 It is a schematic diagram of the chuck structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the anti-deviating module of the present invention;

[0025] Figure 6 It is a schematic diagram of the front view structure of the connection between the limit assembly and the pressing assembly of the present invention;

[0026] Figure 7 It is a schematic diagram of a top view of the structure of the connection between the limit assembly and the pressing assembly of the present invention;

[0027] Figure 8 for Figure 7Schematic diagram of the cross-sectional structure at point A.

[0028] In the figure: 11, platform base; 12, working platform; 2, finished product hopper; 3, column; 4, beam; 5, horizontal feed linear motor; 6, laser generator; 7, laser cutting module; 71, fixed frame; 72, lifting hydraulic cylinder; 73, laser cutting head; 8, feeding module; 81, moving platform; 82, longitudinal feed linear motor; 83, clamping module; 831, clamping cylinder; 832, fixed block; 833, chuck; 8331, concave block; 8332, convex block; 84. Anti-drift module; 841. Anti-drift cylinder; 842. Support block; 843. Limiting assembly; 8431. Mounting block; 8432. Adjusting threaded column; 8433. Connecting block; 8434. Adjusting block; 8435. Connecting rod; 8436. Conical block; 8437. Mounting base; 844. Pressing assembly; 8441. Pressing block; 8442. Arc-shaped spring piece; 8443. Limiting threaded column; 8444. Adjusting nut; 8445. Connecting column; 9. Explosive column. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example: Figure 1-Figure 8 As shown, the present invention provides a technical solution, a multi-pulse femtosecond laser cutting charge column device, which is used for laser cutting of explosive charge columns 9. The charge column cutting device includes a platform base 11, a working platform 12, a finished product hopper 2, a column 3, a crossbeam 4, a transverse feed linear motor 5, a laser generator 6, a laser cutting module 7 and a feeding module 8. The platform base 11 is placed on a plane, the platform base 11 is provided with an inclined discharge trough, the platform base 11 is fixedly connected to the finished product hopper 2, a working platform 12 is arranged at the top of the platform base 11, the working platform 12 is provided with a discharge port, the discharge port of the working platform 12 is located above the inclined discharge trough of the platform base 11, the working platform 12 is fixedly connected to the feeding module 8, columns 3 are respectively arranged at both ends of the working platform 12, the tops of the two columns 3 are fixedly connected to the crossbeam 4, the crossbeam 4 is fixedly connected to the transverse feed linear motor 5, the laser generator 6 is fixedly connected to the tray of the transverse feed linear motor 5, and the laser cutting module 7 is fixedly connected to the tray of the transverse feed linear motor 5.

[0031] The material of the columns 3, the working platform 12 and the crossbeam 4 is marble. The explosive column 9 is a dangerous item. The heat accumulation and mechanical vibration must be strictly controlled during the cutting process to prevent accidental explosion. The good thermal stability and high rigidity of marble can effectively reduce thermal deformation and vibration, and reduce the safety risks during the cutting process. The laser generator 6 can generate a laser beam. The explosive column 9 is placed on the feeding module 8 using a mechanical arm. The feeding module 8 feeds the explosive column 9 to the bottom of the laser cutting module 7 for cutting. The laser cutting module 7 moves on the transverse feed linear motor 5 for cutting. The cut explosive column 9 falls from the discharge port of the working platform 12 into the inclined discharge trough of the platform base 11. The explosive column 9 rolls into the finished product hopper 2 from the outlet at the other end of the inclined discharge trough of the platform base 11.

[0032] like Figure 1 As shown, the laser cutting module 7 includes a fixed frame 71, a lifting hydraulic cylinder 72 and a laser cutting head 73. The fixed frame 71 is fixedly connected to the tray of the transverse feed linear motor 5, the lifting hydraulic cylinder 72 is fixedly connected to the fixed frame 71, and the telescopic end of the lifting hydraulic cylinder 72 passes through the fixed frame 71 and is fixedly connected to the laser cutting head 73.

[0033] The lifting hydraulic cylinder 72 is provided with a flange, and the flange of the lifting hydraulic cylinder 72 is fixed to the fixing frame 71 by bolts. The laser beam generated by the laser generator 6 is transmitted to the laser cutting head 73, and the laser cutting head 73 processes the explosive column 9 by multi-pulse laser cutting.

[0034] like Figure 1 As shown, the feeding module 8 includes a mobile platform 81, a longitudinal feed linear motor 82, a clamping module 83 and an anti-deviation module 84. The longitudinal feed linear motors 82 are respectively arranged at both ends of the discharge port of the working platform 12. The two trays of the longitudinal feed linear motors 82 are fixedly connected to the mobile platform 81. A V-shaped groove is provided on the mobile platform 81. The clamping module 83 is fixedly connected to the mobile platform 81. The anti-deviation module 84 is fixedly connected to the mobile platform 81.

[0035] The longitudinal feed linear motor 82 controls the movement of the mobile platform 81 to deliver the explosive column 9 to the bottom of the laser cutting head 73 at a fixed point. The explosive column 9 is placed in the V-shaped groove of the mobile platform 81. The V-shaped groove of the mobile platform 81 can keep the explosive column 9 horizontal. The clamping module 83 is used to fix the explosive column 9 in the V-shaped groove. The anti-deviation module 84 is used to hold up the explosive column 9 away from one end of the clamping module 83 to prevent deviation during cutting.

[0036] like Figure 3As shown, the clamping module 83 includes a clamping cylinder 831, a fixed block 832 and a chuck 833, both ends of the chuck 833 are fixedly connected to the fixed block 832, one end of the fixed block 832 away from the chuck 833 is fixedly connected to the telescopic end of the clamping cylinder 831, and the clamping cylinder 831 is fixedly connected to the moving platform 81.

[0037] The fixing block 832 fixes the chuck 833 on the clamping cylinder 831 , and the two clamping cylinders 831 control the clamping of the chuck 833 .

[0038] like Figure 4 As shown, the chuck 833 includes a concave block 8331 and a convex block 8332 , the concave block 8331 is fixedly connected to a fixed block 832 , and the convex block 8332 is fixedly connected to another fixed block 832 .

[0039] The two clamping cylinders 831 facilitate the control of the clamping of the concave block 8331 and the convex block 8332 .

[0040] like Figure 4 As shown, clamping bosses are provided at both ends of the concave block 8331, and an interlocking groove is provided between the clamping bosses of the concave block 8331. A fixing boss is provided on the convex block 8332, and avoidance grooves are provided at both ends of the convex block 8332. The clamping boss of the concave block 8331 can fit with the avoidance groove of the convex block 8332, and the fixing boss of the convex block 8332 can fit with the interlocking groove of the concave block 8331.

[0041] The concave block 8331 and the convex block 8332 can be engaged with each other to clamp explosive columns 9 of different sizes. The clamping boss of the concave block 8331 and the fixing boss of the convex block 8332 fix the explosive column 9 via an inclined surface, and the inclined surface provides a downward force component to make the explosive column 9 close to the V-shaped groove of the movable platform 81.

[0042] like Figure 5 As shown, the anti-deviation module 84 includes an anti-deviation cylinder 841, a support block 842, a limiting assembly 843 and a pressing assembly 844, both ends of the pressing assembly 844 are respectively hinged to the limiting assembly 843, one end of the limiting assembly 843 away from the pressing assembly 844 is fixedly connected to the support block 842, one end of the support block 842 away from the limiting assembly 843 is fixedly connected to the anti-deviation cylinder 841, and the anti-deviation cylinder 841 is fixedly connected to the moving platform 81.

[0043] The support block 842 fixes the limiting assembly 843 on the anti-deviating cylinder 841 . The limiting assembly 843 is used to hold up the explosive column 9 , and the pressing assembly 844 can press the explosive column 9 downward.

[0044] like Figure 6 , Figure 8 As shown, the limit assembly 843 includes a mounting block 8431, an adjusting threaded column 8432, a connecting block 8433, an adjusting block 8434, a connecting rod 8435, a conical block 8436 and a mounting base 8437. The mounting block 8431 is provided with a slide groove, the adjusting threaded column 8432 passes through the slide groove of the mounting block 8431 and is rotatably connected to the mounting base 8437, the adjusting threaded column 8432 is rotatably connected to the mounting block 8431, the adjusting block 8434 is fixedly connected to the end of the adjusting threaded column 8432 away from the mounting base 8437, and the adjusting The bottom of block 8434 fits the mounting block 8431, the connecting block 8433 is provided with a threaded hole, the threaded hole of the connecting block 8433 is threadedly connected to the adjusting threaded column 8432, the connecting block 8433 is slidably connected to the sliding groove of the mounting block 8431, the connecting block 8433 is provided with a connecting bracket at one end close to the pressing assembly 844, the connecting block 8433 is hinged to the connecting rod 8435 through the connecting bracket, the connecting rod 8435 is hinged to the pressing assembly 844 at one end away from the connecting block 8433, and conical blocks 8436 are respectively provided at both ends of the mounting block 8431.

[0045] The adjusting threaded column 8432 controls the connecting block 8433 to slide in the sliding groove of the mounting block 8431. The adjusting block 8434 is used to rotate the adjusting threaded column 8432. A fixing nut is provided on the adjusting threaded column 8432. The fixing nut cooperates with the adjusting block 8434 to fix the adjusting threaded column 8432 on the mounting block 8431. The connecting block 8433 is used to control the lifting and lowering of the pressing assembly 844. The height of the pressing assembly 844 is adjusted to clamp explosive columns 9 of different sizes. The connecting rod 8435 is used to connect the pressing assembly 844. A plurality of conical blocks 8436 cooperate with the pressing assembly 844 to keep the explosive column 9 horizontal. The conical blocks 8436 can clamp and support the explosive column 9. When the conical blocks 8436 are clamped, the explosive column 9 will slide upward along the conical surface. The pressing assembly 844 presses the upward sliding explosive column 9 down to a horizontal level.

[0046] like Figure 6 As shown, the pressing assembly 844 includes a pressing block 8441, an arc-shaped spring piece 8442, a limiting threaded column 8443, an adjusting nut 8444 and a connecting column 8445, the two ends of the pressing block 8441 are respectively hinged to the connecting rod 8435, and U-shaped grooves are respectively provided at the two ends of the pressing block 8441. The pressing block 8441 is fixedly connected to the arc-shaped spring piece 8442, and limiting holes are respectively provided at the two ends of the arc-shaped spring piece 8442. The limiting holes of the arc-shaped spring piece 8442 are rotatably connected to the connecting column 8445, and avoidance grooves are respectively provided at the two ends of the arc-shaped spring piece 8442. The limiting threaded column 8443 passes through the U-shaped groove of the pressing block 8441 and the avoidance groove of the arc-shaped spring piece 8442 in sequence, and the limiting threaded column 8443 is fixedly connected to the connecting column 8445. The limiting threaded column 8443 is threadedly connected to the adjusting nut 8444 at one end away from the connecting column 8445.

[0047] The arc-shaped spring piece 8442 fits with the explosive column 9, and the limiting threaded column 8443 can adjust the curvature of the arc-shaped spring piece 8442 so as to fit with explosive columns 9 of different diameters. The limiting threaded column 8443 is connected to the arc-shaped spring piece 8442 through the connecting column 8445. When adjusting the curvature of the arc-shaped spring piece 8442, the limiting threaded column 8443 will slide on the pressing block 8441. The U-shaped groove of the pressing block 8441 facilitates the sliding of the limiting threaded column 8443, and the limiting threaded column 8443 will rotate with the connecting column 8445 when adjusted. The avoidance groove of the arc-shaped spring piece 8442 facilitates the rotation of the connecting column 8445. The limiting threaded column 8443 is adjusted by rotating the adjusting nut 8444.

[0048] The working principle of the present invention is as follows: the explosive column 9 is placed on the V-groove of the mobile platform 81 by a mechanical arm, the clamping cylinder 831 controls the chuck 833 to clamp the explosive column 9, the anti-deviation cylinder 841 controls the limit assembly 843 to clamp and lift the explosive column 9, the threaded column 8432 is rotated to adjust the height of the pressing assembly 844, the adjusting nut 8444 is rotated to make the arc-shaped spring piece 8442 fit and compress the explosive column 9, the longitudinal feed linear motor 82 controls the mobile platform 81 to move to the bottom of the laser cutting head 73, the laser cutting head 73 moves on the transverse feed linear motor 5 for cutting, the cut explosive column 9 falls from the discharge port of the working platform 12 into the inclined discharge trough of the platform base 11, and the explosive column 9 rolls into the finished product hopper 2 from the outlet at the other end of the inclined discharge trough of the platform base 11.

[0049] It will be apparent to those skilled in the art that the 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 the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. Multi-pulse femtosecond laser cutting drug column device, characterized by: Used for laser cutting of explosive charge columns (9), the charge column cutting device comprises a platform base (11), a working platform (12), a finished product hopper (2), a column (3), a crossbeam (4), a transverse feed linear motor (5), a laser generator (6), a laser cutting module (7) and a feeding module (8), wherein the platform base (11) is placed on a plane, the platform base (11) is provided with an inclined discharge trough, the platform base (11) is fixedly connected to the finished product hopper (2), a working platform (12) is provided at the top of the platform base (11), and the working platform (12) ) is provided with a discharge port, the discharge port of the working platform (12) is located above the inclined discharge slot of the platform base (11), the working platform (12) is fixedly connected to the feeding module (8), columns (3) are respectively arranged at both ends of the working platform (12), the top ends of the two columns (3) are fixedly connected to the crossbeam (4), the crossbeam (4) is fixedly connected to the transverse feed linear motor (5), the laser generator (6) is fixedly connected to the tray of the transverse feed linear motor (5), and the laser cutting module (7) is fixedly connected to the tray of the transverse feed linear motor (5).

2. The multi-pulse femtosecond laser cutting drug column device according to claim 1, characterized in that: The laser cutting module (7) comprises a fixed frame (71), a lifting hydraulic cylinder (72) and a laser cutting head (73); the fixed frame (71) is fixedly connected to a tray of a transverse feed linear motor (5); the lifting hydraulic cylinder (72) is fixedly connected to the fixed frame (71); and the telescopic end of the lifting hydraulic cylinder (72) passes through the fixed frame (71) and is fixedly connected to the laser cutting head (73).

3. The multi-pulse femtosecond laser cutting drug column device according to claim 1, characterized in that: The feeding module (8) comprises a mobile platform (81), a longitudinal feed linear motor (82), a clamping module (83) and an anti-deviation module (84); longitudinal feed linear motors (82) are respectively arranged at both ends of the discharge port of the working platform (12); the trays of the two longitudinal feed linear motors (82) are fixedly connected to the mobile platform (81); a V-shaped groove is arranged on the mobile platform (81); the clamping module (83) is fixedly connected to the mobile platform (81); and the anti-deviation module (84) is fixedly connected to the mobile platform (81).

4. The multi-pulse femtosecond laser cutting drug column device according to claim 3, characterized in that: The clamping module (83) comprises a clamping cylinder (831), a fixing block (832) and a clamp (833); both ends of the clamp (833) are respectively fixedly connected to the fixing block (832); one end of the fixing block (832) away from the clamp (833) is fixedly connected to the telescopic end of the clamping cylinder (831); and the clamping cylinder (831) is fixedly connected to the moving platform (81).

5. The multi-pulse femtosecond laser cutting drug column device according to claim 4, characterized in that: The chuck (833) comprises a concave block (8331) and a convex block (8332), wherein the concave block (8331) is fixedly connected to a fixed block (832), and the convex block (8332) is fixedly connected to another fixed block (832).

6. The multi-pulse femtosecond laser cutting drug column device according to claim 5, characterized in that: The concave block (8331) is provided with clamping bosses at both ends, and an engaging groove is provided between the clamping bosses of the concave block (8331). The convex block (8332) is provided with a fixing boss, and avoidance grooves are provided at both ends of the convex block (8332). The clamping boss of the concave block (8331) can fit with the avoidance groove of the convex block (8332), and the fixing boss of the convex block (8332) can fit with the engaging groove of the concave block (8331).

7. The multi-pulse femtosecond laser cutting drug column device according to claim 3, characterized in that: The anti-deviation module (84) comprises an anti-deviation cylinder (841), a support block (842), a limiting assembly (843) and a pressing assembly (844); both ends of the pressing assembly (844) are respectively hinged to the limiting assembly (843); one end of the limiting assembly (843) away from the pressing assembly (844) is fixedly connected to the support block (842); one end of the support block (842) away from the limiting assembly (843) is fixedly connected to the anti-deviation cylinder (841); and the anti-deviation cylinder (841) is fixedly connected to the moving platform (81).

8. The multi-pulse femtosecond laser cutting drug column device according to claim 7, characterized in that: The limiting assembly (843) includes a mounting block (8431), an adjusting threaded column (8432), a connecting block (8433), an adjusting block (8434), a connecting rod (8435), a conical block (8436) and a mounting base (8437). The mounting block (8431) is provided with a slide groove. The adjusting threaded column (8432) passes through the slide groove of the mounting block (8431) and is rotatably connected to the mounting base (8437). The adjusting threaded column (8432) is rotatably connected to the mounting block (8431). The adjusting block (8434) is fixedly connected to one end of the adjusting threaded column (8432) away from the mounting base (8437). The bottom of the block (8434) fits the mounting block (8431), the connecting block (8433) is provided with a threaded hole, the threaded hole of the connecting block (8433) is threadedly connected to the adjusting threaded column (8432), the connecting block (8433) is slidably connected to the sliding groove of the mounting block (8431), a connecting bracket is provided at one end of the connecting block (8433) close to the pressing assembly (844), the connecting block (8433) is hinged to the connecting rod (8435) through the connecting bracket, the connecting rod (8435) is hinged to the pressing assembly (844) at one end away from the connecting block (8433), and conical blocks (8436) are respectively provided at both ends of the mounting block (8431).

9. The multi-pulse femtosecond laser cutting drug column device according to claim 8, characterized in that: The pressing assembly (844) includes a pressing block (8441), an arc-shaped spring piece (8442), a limiting threaded column (8443), an adjusting nut (8444) and a connecting column (8445). The two ends of the pressing block (8441) are respectively hinged to the connecting rod (8435). The two ends of the pressing block (8441) are respectively provided with U-shaped grooves. The pressing block (8441) is fixedly connected to the arc-shaped spring piece (8442). The two ends of the arc-shaped spring piece (8442) are respectively provided with limiting holes. The limiting hole of the arc-shaped spring piece (8442) is rotatably connected to the connecting column (8445), and avoidance grooves are respectively provided at both ends of the arc-shaped spring piece (8442). The limiting threaded column (8443) passes through the U-shaped groove of the pressure block (8441) and the avoidance groove of the arc-shaped spring piece (8442) in sequence. The limiting threaded column (8443) is fixedly connected to the connecting column (8445), and the end of the limiting threaded column (8443) away from the connecting column (8445) is threadedly connected to the adjusting nut (8444).

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