CN115138996B

CN115138996B - Laser drilling machine

Info

Publication number: CN115138996B
Application number: CN202211072423.5A
Authority: CN
Inventors: 蔡珍彬
Original assignee: Suzhou Ruixinlai Electrical Technology Co ltd
Current assignee: Suzhou Sicui Acoustooptic Micro Nano Technology Research Institute Co ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2022-11-22
Anticipated expiration: 2042-09-02
Also published as: CN115138996A

Abstract

The invention relates to the technical field of laser drilling, and discloses a laser drilling machine which comprises an equipment base, a positioning and clamping mechanism, a workpiece to be machined and a driving mechanism. According to the multi-station laser drilling machine, the two semi-annular sleeves are driven to be close to or far away from each other through the bidirectional telescopic rod, when the two semi-annular sleeves are completely retracted into the cavity, the threaded rod rotates to not drive the first sliding block to move, and the second sliding block moves along with the rotation of the threaded rod, so that the two positioning and clamping mechanisms move and are fixed one by one, the effect of adjusting the distance between the two positioning and clamping mechanisms is achieved, and the device can clamp workpieces to be machined with different lengths; two semicircular sleeves are driven to be attached together through the bidirectional telescopic rod to form a threaded hole, so that the first sliding block and the second sliding block can synchronously move along with the rotation of the threaded rod to drive the two positioning clamping mechanisms to synchronously move, the effect of moving a workpiece to be processed is achieved, and the working efficiency of equipment is improved.

Description

Laser drilling machine

Technical Field

The invention relates to the technical field of laser drilling, in particular to a laser drilling machine.

Background

Laser drilling is the earliest practical laser processing technique and is one of the main application fields of laser processing. With the rapid development of modern industrial and scientific technology, more and more materials with high hardness and high melting point are used, and the traditional processing method can not meet certain process requirements. Because the laser has the characteristics of high energy, high focusing and the like, the laser drilling processing technology is widely applied to a plurality of industrial processing technologies, so that materials with high hardness and high melting point are easier to process.

The traditional laser drilling equipment can only fix a single workpiece, then the surface of the workpiece is drilled through the drilling mechanism, after one drilling is completed, if other parts of the workpiece need to be drilled, the position of the workpiece needs to be adjusted, and then the next position is drilled; and current laser drilling equipment can not carry out the turn-over to the work piece, and after finishing punching to the one side of work piece, if need punch to the another side, just need the manual work to take off the work piece and turn over again and fix, the time-wasting, and easy location is unstable, influences the precision of punching.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a laser drilling machine which has the advantages of capability of drilling a plurality of workpieces at one time, simplicity in turnover operation of the workpieces and the like, and solves the problems that the single station in the prior art is low in working efficiency and cannot turn over the workpieces.

(II) technical scheme

In order to solve the technical problems that the single-station working efficiency is low and the workpiece can not be turned over in the prior art, the invention provides the following technical scheme:

a laser drilling machine comprises an equipment base, a positioning and clamping mechanism, a workpiece to be machined and a driving mechanism, wherein the equipment base comprises a first base and a second base, a lifting workbench is arranged on the first base, a waste trough is formed in the center of the surface of the lifting workbench, the positioning and clamping mechanism is respectively arranged on two sides of the waste trough, two ends of the workpiece to be machined are respectively clamped by the positioning and clamping mechanism, the driving mechanism is installed on the second base, and the positioning and clamping mechanism is respectively assembled on the driving mechanism;

and a laser punching mechanism and a control module are arranged at the upper end of the second base, a laser head of the laser punching mechanism is positioned right above the waste chute, and the control module is used for controlling the operation of all parts.

Preferably, the driving mechanism comprises a first supporting plate, a second supporting plate, a first sliding block, a second sliding block, a threaded rod and a motor, the first sliding block and the second sliding block are fixedly connected with the first supporting plate and the second supporting plate respectively, a threaded hole is formed in the surface of the second sliding block, the threaded rod is matched with the second sliding block through the threaded hole, the motor is arranged at one end of the threaded rod, shaft seats are arranged on two sides of the second base respectively, and two ends of the threaded rod penetrate through the shaft seats respectively and are in running fit with the shaft seats.

Preferably, the round hole has been seted up on first slider surface, the inside cavity of having seted up of first slider, the inside bottom surface fixed mounting of cavity has two-way telescopic link, two expansion ends fixedly connected with spliced pole respectively of two-way telescopic link, be provided with the semi-annular cover on the spliced pole respectively, semi-annular cover inner wall surface seted up with threaded rod surface thread assorted screw hole.

Preferably, the positioning and clamping mechanism comprises a fixed clamping piece and a movable clamping piece, the fixed clamping piece comprises a bottom plate, a first side plate arranged on one side of the bottom plate and end limiting plates arranged at two ends of the bottom plate, and two sides of the upper end surface of the first side plate are respectively provided with a hollow groove;

preferably, the movable clamping piece comprises a top plate and a second side plate arranged on one side of the top plate, an expansion spring is arranged on the lower end face of the second side plate, the tail end of the expansion spring is fixedly connected with the bottom surface inside the hollow groove, a groove is formed in the middle of the second side plate, a screw hole is formed in the upper end of the groove, a screw groove is formed in the middle of the upper end face of the first side plate, and a positioning screw is screwed between the screw hole and the screw groove.

Preferably, the inner sides of the end limiting plates are respectively and fixedly provided with an air cylinder, the movable ends of the air cylinders are respectively provided with a side limiting plate, the inside of each side limiting plate is provided with a pressure sensor, and the pressure detection end of each pressure sensor is flush with the surface of one side, far away from the air cylinder, of each side limiting plate.

Preferably, one side of bottom plate is kept away from to first curb plate fixedly connected with axis of rotation respectively, the axis of rotation end is provided with first stopper respectively, one of them first stopper fixed surface installs the crank, first backup pad with the mounting hole has been seted up respectively to the second backup pad surface, the axis of rotation respectively with mounting hole normal running fit, the crank with be provided with crank locating component between the second backup pad.

Preferably, the crank positioning assembly comprises a positioning rod, a second limiting block, a pressing handle and a reset spring, the second limiting block is arranged at one end of the positioning rod, the pressing handle is fixedly connected to the middle of the positioning rod, a through hole is formed in the surface of the crank, the positioning rod is rotatably assembled on the through hole, the second limiting block and the pressing handle are respectively located on two sides of the crank, a positioning groove is formed in the surface of the second supporting plate, and the positioning rod is in sliding fit with the positioning groove;

the crank is close to a side surface of the second supporting plate, a mounting groove is formed in the side surface of the crank, and two ends of the reset spring are fixedly connected with the inner wall of the mounting groove and the surface of the pressing handle respectively.

Preferably, a baffle is arranged at a waste outlet at the end part of the waste trough, clamping grooves are respectively formed in two sides of the waste outlet, clamping blocks are respectively arranged on two sides of the baffle, and the clamping blocks are in sliding fit with the clamping grooves.

(III) advantageous effects

Compared with the prior art, the invention provides a laser drilling machine, which has the following beneficial effects:

1. this laser-beam drilling machine of multistation, drive two spliced pole synchronous motion through two-way telescopic link, make two semicircular sleeves be close to each other or keep away from, two semicircular sleeves keep away from each other to when retracting the cavity inside completely, the threaded rod rotates and can not drive first slider and remove, and the second slider can remove along with the rotation of threaded rod, it is fixed to make a location fixture remove another location fixture, reach the effect of adjusting the interval between two location fixtures, make the device can carry out the centre gripping to the work piece of treating of different length.

2. This laser-beam drilling machine of multistation drives two semi-annular covers through two-way telescopic link and is close to each other to pasting together, two semi-annular cover inboards form one with threaded rod surface thread assorted screw hole, when driving the threaded rod through the motor and rotating, can drive first slider and second slider along with the rotation of threaded rod and synchronous motion, and then drive two location fixture and can keep synchronous motion, reach the effect of removing the work piece of treating processing, improve equipment's work efficiency.

3. This laser-beam drilling machine of multistation constitutes location fixture through setting up fixed holder and activity holder, and the total height of first curb plate and second curb plate is adjustable for fixed holder and activity holder height-adjustable, and fix the height through set screw, be convenient for to the work piece of treating of different thickness fix a position firmly.

4. According to the multi-station laser drilling machine, the cylinder drives the lateral limiting plate to move, the lateral limiting plate moves to be attached to the lateral side of a workpiece to be machined to limit the workpiece to be machined, the pressure sensor detects the pressure on the surface of the lateral limiting plate in real time when the cylinder works, the control module controls the cylinder to stop working when the pressure measured by the pressure sensor reaches a certain value, and the workpiece to be machined can be guaranteed to be stably positioned.

5. This laser-beam drilling machine of multistation through pressing the handle to the crank, drives the locating lever and extracts from the constant head tank on second backup pad surface, removes the location to location fixture, wave the crank and drive location fixture and wait to process the work piece turn-over after, loosens and presses the handle, and reset spring drives the locating lever and pops out the restoration, inserts in the constant head tank of opposite side, accomplishes the location to location fixture, is convenient for treat and processes work piece both sides surface and punch.

Drawings

FIG. 1 is a schematic view of the overall three-dimensional structure of a laser-beam drilling machine according to the present invention;

FIG. 2 is a schematic view of the apparatus base structure of the present invention;

FIG. 3 is a schematic structural view of a positioning and clamping mechanism and a driving mechanism according to the present invention;

FIG. 4 is an exploded view of the positioning and clamping mechanism and the driving mechanism of the present invention;

FIG. 5 is a schematic view of a first slider according to the present invention;

FIG. 6 is a schematic view of the assembly of the first slide and threaded rod of the present invention;

FIG. 7 is an exploded view of the positioning and clamping mechanism of the present invention;

fig. 8 is an exploded view of the fixed clamp and crank positioning mechanism of the present invention.

In the figure: 1. a first base; 2. a second base; 3. lifting the working table; 4. a waste chute; 5. positioning the clamping mechanism; 6. a workpiece to be processed; 7. a drive mechanism; 8. a laser punching mechanism; 9. a control module; 10. a first support plate; 11. a second support plate; 12. a first slider; 13. a second slider; 14. a threaded rod; 15. a motor; 16. a shaft seat; 17. a circular hole; 18. a cavity; 19. a bidirectional telescopic rod; 20. connecting columns; 21. a semi-annular sleeve; 22. fixing the clamping piece; 23. a movable clamping member; 24. a base plate; 25. a first side plate; 26. an end limiting plate; 27. an empty groove; 28. a top plate; 29. a second side plate; 30. a tension spring; 31. a groove; 32. a screw hole; 33. a spiral groove; 34. a set screw; 35. a cylinder; 36. a side limiting plate; 37. a pressure sensor; 38. a rotating shaft; 39. a first stopper; 40. a crank; 41. mounting holes; 42. positioning a rod; 43. a second limiting block; 44. pressing the handle; 45. a return spring; 46. a through hole; 47. positioning a groove; 48. mounting grooves; 49. and a baffle plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-8, a laser drilling machine comprises an equipment base, a positioning and clamping mechanism 5, a workpiece 6 to be machined and a driving mechanism 7, wherein the equipment base comprises a first base 1 and a second base 2, a lifting workbench 3 is arranged on the first base 1, a waste chute 4 is formed in the center of the surface of the lifting workbench 3, the positioning and clamping mechanisms 5 are respectively arranged on two sides of the waste chute 4, two ends of the workpiece 6 to be machined are respectively clamped by the positioning and clamping mechanism 5, the driving mechanism 7 is installed on the second base 2, and the positioning and clamping mechanisms 5 are respectively assembled on the driving mechanism 7;

the upper end of the second base 2 is provided with a laser punching mechanism 8 and a control module 9, a laser head of the laser punching mechanism 8 is positioned right above the waste chute 4, and all parts are controlled to run through the control module 9.

Further, the driving mechanism 7 comprises a first supporting plate 10, a second supporting plate 11, a first sliding block 12, a second sliding block 13, a threaded rod 14 and a motor 15, wherein the first sliding block 12 and the second sliding block 13 are respectively fixedly connected with the first supporting plate 10 and the second supporting plate 11, a threaded hole is formed in the surface of the second sliding block 13, the threaded rod 14 is matched with the second sliding block 13 through the threaded hole, the motor 15 is arranged at one end of the threaded rod 14, shaft seats 16 are respectively arranged at two sides of the second base 2, two ends of the threaded rod 14 respectively penetrate through the shaft seats 16 and are in rotating fit with the shaft seats 16, bearings are respectively arranged at the matching positions of the two ends of the threaded rod 14 and the shaft seats 16, a round hole 17 is formed in the surface of the first sliding block 12, a cavity 18 is formed in the first sliding block 12, a bidirectional telescopic rod 19 is fixedly arranged on the bottom surface of the cavity 18, connecting columns 20 are respectively and fixedly connected with connecting columns 20, semi-annular sleeves 21 are respectively arranged on the connecting columns 20, threaded holes matched with the threads on the inner wall surfaces of the semi-annular sleeves 21, thereby driving the two connecting columns 20 to synchronously move through the bidirectional telescopic rod 19, leading the two semi-annular sleeves 21 to approach or separate from each other, driving the threaded rod 14 to rotate through the motor 15 when the two semi-annular sleeves 21 separate from each other to be completely retracted into the cavity 18, because the round hole 17 on the first sliding block 12 is not in surface contact with the threaded rod 14, the rotation of the threaded rod 14 will not drive the first sliding block 12 to move, and the second slider 13 is screwed with the threaded rod 14, the second slider 13 can move along with the rotation of the threaded rod 14, one positioning and clamping mechanism 5 moves the other positioning and clamping mechanism 5 to fix, so that the effect of adjusting the distance between the two positioning and clamping mechanisms 5 is achieved, and the device can clamp workpieces 6 to be machined with different lengths; when the two semi-annular sleeves 21 are driven to be close to each other and attached together through the bidirectional telescopic rod 19, a threaded hole matched with the surface thread of the threaded rod 14 is formed on the inner side of the two semi-annular sleeves, the threaded rod 14 is driven to rotate through the motor 15, the first sliding block 12 can be driven to move along with the rotation of the threaded rod 14, and then the two positioning and clamping mechanisms 5 can keep moving synchronously, so that the effect of moving the workpiece 6 to be machined is achieved. In addition, in a specific application, the workpieces 6 to be processed may be all tubular workpieces or all plate-shaped workpieces.

Further, location fixture 5 includes fixed holder 22 and activity holder 23, fixed holder 22 includes bottom plate 24, set up the first curb plate 25 in bottom plate 24 one side and set up the tip limiting plate 26 at bottom plate 24 both ends, dead slot 27 has been seted up respectively to first curb plate 25 up end both sides, activity holder 23 includes roof 28 and sets up the second curb plate 29 in roof 28 one side, the terminal surface is provided with expanding spring 30 under the second curb plate 29, expanding spring 30 end all with the inside bottom surface fixed connection of dead slot 27, recess 31 has been seted up at second curb plate 29 middle part, screw hole 32 has been seted up to recess 31 upper end, thread groove 33 has been seted up in first curb plate 25 up end middle part, the spiro union has set screw 34 between screw hole 32 and the thread groove 33, thereby first curb plate 25 is adjustable with second curb plate 29's overall height, and fix the height through set screw 34, and then to the work piece 6 of treating of different thickness fix a position firmly.

Further, the inboard fixed mounting respectively of tip limiting plate 26 has cylinder 35, the expansion end of cylinder 35 is provided with lateral part limiting plate 36 respectively, the inside pressure sensor 37 that is provided with respectively of lateral part limiting plate 36, pressure sensor 37's pressure measurement end and lateral part limiting plate 36 keep away from a side surface parallel and level of cylinder 35, thereby it removes to drive lateral part limiting plate 36 through cylinder 35, lateral part limiting plate 36 removes to pasting with waiting to process 6 sides of work piece and can treating that processing work piece 6 is spacing, pressure sensor 37 carries out real-time detection to the pressure that receives on lateral part limiting plate 36 surface during the cylinder 35 during operation, when the pressure that detects at pressure sensor 37 reaches a definite value, control cylinder 35 stop work through control module 9, can guarantee to treat that processing work piece 6 fixes a position firmly.

Further, one side of bottom plate 24 is kept away from to first curb plate 25 is fixedly connected with axis of rotation 38 respectively, axis of rotation 38 end is provided with first stopper 39 respectively, one of them first stopper 39 fixed surface installs crank 40, mounting hole 41 has been seted up respectively on first backup pad 10 and the second backup pad 11 surface, axis of rotation 38 respectively with mounting hole 41 normal running fit, be provided with crank locating component between crank 40 and the second backup pad 11, thereby drive axis of rotation 38 and rotate round mounting hole 41 through rocking crank 40, drive whole location fixture 5 and rotate, treat to process work piece 6 and overturn, and fix a position the location fixture 5 that has turned over the face and treat to process work piece 6 through crank locating component.

Furthermore, the crank positioning assembly comprises a positioning rod 42, a second limiting block 43, a pressing handle 44 and a return spring 45, the second limiting block 43 is arranged at one end of the positioning rod 42, the pressing handle 44 is fixedly connected to the middle of the positioning rod 42, a through hole 46 is formed in the surface of the crank 40, the positioning rod 42 is rotatably assembled on the through hole 46, the second limiting block 43 and the pressing handle 44 are respectively positioned at two sides of the crank 40, a positioning groove 47 is formed in the surface of the second supporting plate 11, and the positioning rod 42 is in sliding fit with the positioning groove 47; mounting groove 48 has been seted up to a side surface that crank 40 is close to second backup pad 11, reset spring 45 both ends respectively with mounting groove 48 inner wall and pressing handle 44 fixed surface connection, thereby through pressing handle 44 to crank 40 and can driving locating lever 42 and extract from the constant head tank 47 on second backup pad 11 surface, remove the location to location fixture 5, wave crank 40 and drive location fixture 5 and treat behind the 6 turn-ups of processing work piece, loosen and press handle 44, reset spring 45 can drive locating lever 42 and pop out the restoration, insert in the constant head tank 47 of opposite side, the completion is to the location of location fixture 5.

Further, the waste outlet department of 4 tip in waste chute is provided with baffle 49, and the draw-in groove has been seted up respectively to waste outlet both sides, and baffle 49 both sides are provided with the fixture block respectively, fixture block and draw-in groove sliding fit to baffle 49 convenient to detach and installation are convenient for clear up the waste material that the work piece 6 of treating processing produced that punches with the interior laser of waste chute mechanism 8 when pulling down baffle 49.

The working principle is as follows: when the device is used, the two connecting columns 20 are driven to synchronously move through the bidirectional telescopic rod 19, so that the two semi-annular sleeves 21 are far away from each other until the two semi-annular sleeves 21 are completely retracted into the cavity 18, one end of a workpiece 6 to be machined is placed on a bottom plate 24 of the positioning and clamping mechanism 5 which is positioned on the same side as the first sliding block 12, the threaded rod 14 is driven to rotate through the motor 15, the second sliding block 13 moves along with the rotation of the threaded rod 14, the corresponding positioning and clamping mechanism 5 is driven to be close to the other positioning and clamping mechanism 5, and the two ends of the workpiece 6 to be machined are placed on the bottom plate 24 until the two ends of the workpiece 6 to be machined are respectively abutted against the first side plate 25; the cylinder 35 drives the side limiting plates 36 to move, so that two sides of the workpiece 6 to be processed are limited by the side limiting plates 36 and the end limiting plates 26 respectively; adjusting the total heights of the first side plate 25 and the second side plate 29 to ensure that the lower surface of the top plate 28 is attached to the upper side of the workpiece 6 to be processed, and fixing the heights through a positioning screw 34 to complete the positioning of the workpiece 6 to be processed;

starting the laser punching mechanism 8 to sequentially punch the workpieces 6 to be machined which are orderly arranged, driving the two semi-annular sleeves 21 to be close to each other through the two-way telescopic rod 19 after each workpiece 6 to be machined finishes punching a first hole to form a threaded hole matched with the surface thread of the threaded rod 14, driving the threaded rod 14 to rotate through the motor 15, further driving the two positioning and clamping mechanisms 5 and the workpieces 6 to be machined clamped by the positioning and clamping mechanisms 5 to synchronously move, moving the next punching position of the workpiece 6 to be machined to be right below a laser head of the laser punching mechanism 8, and repeating the operation to complete punching on the upper surface of the workpiece 6 to be machined;

when needing to treat the processing work piece 6 another side and punching, press handle 44 to crank 40, drive locating lever 42 and extract from the constant head tank 47 on second backup pad 11 surface, remove the location to location fixture 5, wave crank 40 and drive location fixture 5 and treat processing work piece 6 turn-over back, loosen and press handle 44, reset spring 45 drives locating lever 42 and pops out the restoration, insert in the constant head tank 47 of opposite side, the completion is to the location of location fixture 5, can treat this surface of processing work piece 6 and punch.

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

Claims

1. The utility model provides a laser-beam drilling machine, includes equipment base, location fixture (5), treats processing work piece (6), actuating mechanism (7), its characterized in that: the equipment base comprises a first base (1) and a second base (2), wherein a lifting workbench (3) is arranged on the first base (1), a waste trough (4) is formed in the center of the surface of the lifting workbench (3), positioning and clamping mechanisms (5) are respectively arranged on two sides of the waste trough (4), two ends of a workpiece (6) to be processed are respectively clamped by the positioning and clamping mechanisms (5), the positioning and clamping mechanisms (5) can simultaneously clamp a plurality of tubular or plate-shaped workpieces (6) to be processed, a driving mechanism (7) is installed on the second base (2), and the positioning and clamping mechanisms (5) are respectively assembled on the driving mechanism (7);

a laser punching mechanism (8) and a control module (9) are arranged at the upper end of the second base (2), a laser head of the laser punching mechanism (8) is positioned right above the waste trough (4), and all parts are controlled to run through the control module (9);

the driving mechanism (7) comprises a first supporting plate (10), a second supporting plate (11), a first sliding block (12), a second sliding block (13), a threaded rod (14) and a motor (15), the first sliding block (12) and the second sliding block (13) are fixedly connected with the first supporting plate (10) and the second supporting plate (11) respectively, a threaded hole is formed in the surface of the second sliding block (13), the threaded rod (14) is matched with the second sliding block (13) through the threaded hole, the motor (15) is arranged at one end of the threaded rod (14), shaft seats (16) are arranged on two sides of the second base (2) respectively, and two ends of the threaded rod (14) penetrate through the shaft seats (16) respectively and are in rotating fit with the shaft seats (16);

the surface of the first sliding block (12) is provided with a round hole (17), a cavity (18) is formed in the first sliding block (12), a bidirectional telescopic rod (19) is fixedly installed on the bottom surface of the inner part of the cavity (18), two movable ends of the bidirectional telescopic rod (19) are respectively and fixedly connected with a connecting column (20), the connecting columns (20) are respectively provided with a semi-annular sleeve (21), and the surface of the inner wall of the semi-annular sleeve (21) is provided with a threaded hole matched with the surface thread of the threaded rod (14);

the positioning and clamping mechanism (5) comprises a fixed clamping piece (22) and a movable clamping piece (23), the fixed clamping piece (22) comprises a bottom plate (24), a first side plate (25) arranged on one side of the bottom plate (24) and end limiting plates (26) arranged at two ends of the bottom plate (24), and two sides of the upper end face of the first side plate (25) are respectively provided with a hollow groove (27);

the movable clamping piece (23) comprises a top plate (28) and a second side plate (29) arranged on one side of the top plate (28), an expansion spring (30) is arranged on the lower end face of the second side plate (29), the tail end of the expansion spring (30) is fixedly connected with the bottom face inside the hollow groove (27), a groove (31) is formed in the middle of the second side plate (29), a screw hole (32) is formed in the upper end of the groove (31), a screw groove (33) is formed in the middle of the upper end face of the first side plate (25), and a positioning screw (34) is connected between the screw hole (32) and the screw groove (33) in a threaded mode;

the inner sides of the end limiting plates (26) are respectively and fixedly provided with an air cylinder (35), the movable ends of the air cylinders (35) are respectively provided with a side limiting plate (36), the insides of the side limiting plates (36) are respectively provided with a pressure sensor (37), and the pressure detection end of the pressure sensor (37) is flush with the surface of one side, far away from the air cylinder (35), of the side limiting plate (36);

keep away from first curb plate (25) one side fixedly connected with axis of rotation (38) of bottom plate (24), axis of rotation (38) end is provided with first stopper (39), wherein first stopper (39) fixed surface installs crank (40), first backup pad (10) with mounting hole (41) have been seted up respectively on second backup pad (11) surface, axis of rotation (38) with mounting hole (41) normal running fit, crank (40) with be provided with crank locating component between second backup pad (11).

2. The laser-beam drilling machine according to claim 1, wherein: the crank positioning assembly comprises a positioning rod (42), a second limiting block (43), a pressing handle (44) and a return spring (45), the second limiting block (43) is arranged at one end of the positioning rod (42), the pressing handle (44) is fixedly connected to the middle of the positioning rod (42), a through hole (46) is formed in the surface of the crank (40), the positioning rod (42) is rotatably assembled on the through hole (46), the second limiting block (43) and the pressing handle (44) are respectively located on two sides of the crank (40), a positioning groove (47) is formed in the surface of the second supporting plate (11), and the positioning rod (42) is in sliding fit with the positioning groove (47); the surface of one side, close to the second supporting plate (11), of the crank handle (40) is provided with a mounting groove (48), and two ends of the return spring (45) are fixedly connected with the inner wall of the mounting groove (48) and the surface of the pressing handle (44) respectively.

3. The laser-beam drilling machine according to claim 1, wherein: a baffle (49) is arranged at a waste outlet at the end part of the waste trough (4), clamping grooves are formed in two sides of the waste outlet respectively, clamping blocks are arranged on two sides of the baffle (49) respectively, and the clamping blocks are in sliding fit with the clamping grooves.