CN114535837B

CN114535837B - Laser cutting device with positioning function

Info

Publication number: CN114535837B
Application number: CN202210304304.1A
Authority: CN
Inventors: 王亚军
Original assignee: Jiangsu Dazu Yueming Laser Technology Co ltd
Current assignee: Songgu Laser Technology Jiangsu Co ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2023-01-17
Anticipated expiration: 2042-03-25
Also published as: CN114535837A

Abstract

The invention relates to the technical field of laser cutting, in particular to a laser cutting device with a positioning function, which comprises a placing base station, a bearing bracket, a cutting frame, a positioning mechanism and a cutting mechanism.

Description

Laser cutting device with positioning function

Technical Field

The invention relates to the technical field of laser cutting, in particular to a laser cutting device with a positioning function.

Background

The laser cutting is a technology for cutting a workpiece by irradiating a cut material by using a high-power-density laser beam, heating the material to a vaporization temperature quickly and evaporating the material to form holes, and blowing off molten substances by using high-speed airflow coaxial with the laser beam along with the movement of the material by the laser beam, wherein the laser cutting is widely applied to the fields of automobile manufacturing, aerospace and the like due to the characteristics of narrow cut, small deformation of the workpiece, small roughness of the surface of a cut and the like, wherein the inner part of the workpiece is uniformly provided with empty slots, the outer part of the workpiece is of an arc structure, and the three-dimensional structure of the workpiece is shown in figure 10.

In the workpiece cutting process, if a complete workpiece is obtained after cutting, cutting needs to be performed at a position between the empty slots on the workpiece, but in the workpiece cutting process, alignment errors exist between the cutting equipment and the workpiece due to factors such as workpiece stacking, movement in the cutting process and the like, and then the cutting equipment cuts the empty slot part of the workpiece in the cutting process, so that the integrity of the section of the workpiece is caused, and the cutting effect of the workpiece is influenced.

The distance between the traditional laser cutting equipment and the position to be cut of the arc-shaped workpiece is different in the moving process, if the distance between the laser cutting equipment and the workpiece is too close, strong back-turning pressure is generated between airflow and the workpiece, and the blowing capacity of the airflow on molten substances generated after cutting is influenced; if the laser cutting apparatus is too far from the workpiece, unnecessary kinetic energy loss may also result.

Disclosure of Invention

In order to solve the problems, the invention adopts the following technical scheme: the utility model provides a laser cutting device with locate function, is including placing the base station, holding bracket, cutting frame, positioning mechanism and cutting mechanism, the support bracket that places base station up end left and right sides mid-mounting has Contraband type structure, the cutting frame of Contraband type structure is installed jointly to two support bracket up ends, cutting frame horizontal segment lower terminal surface installs cutting mechanism, place the base station up end and lie in two and hold bracket inside all to install positioning mechanism.

Positioning mechanism include two-way screw rod, location frame, two-way lead screw, locating plate and fixed part, wherein place the sliding tray that the base station middle part was seted up from the left right side and is moved towards, location frame lower extreme is provided with the slip arch, the location frame slides through the slip arch and sets up both sides about the sliding tray, install two-way screw rod through the screw between two slip archs, the location spout of symmetry around every location frame up end was seted up, the inside locating plate that is provided with L type structure of two adjacent location spouts around, the vertical section of locating plate slides and sets up inside the spout of fixing a position, and the horizontal segment of locating plate places the base station middle part along the horizontal direction and extends, two-way lead screw passes through the bearing and installs in the location frame and be located around on the part between two location spouts, two ends and the vertical section spiro union of locating plate around the two-way lead screw, install the fixed part between two locating plates around the location frame up end just is located.

The cutting mechanism comprises a lifting cylinder, an arc-shaped plate, an electric sliding block, a connecting frame, an adjusting part and a laser cutting instrument, wherein the lifting cylinder is installed in the middle of the lower end face of the horizontal section of the cutting frame through a cylinder seat, the arc-shaped plate is installed on the lower end face of the telescopic end of the lifting cylinder, the electric sliding block is installed on the lower end face of the arc-shaped plate, and the connecting frame, the adjusting part and the laser cutting instrument are sequentially installed on the lower end face of the electric sliding block from top to bottom.

Preferably, the fixing part comprises a reset spring rod, a fixing plate, a lifting frame, a connecting cylinder and Zhang Geban, wherein a fixing protrusion is arranged in the middle of the upper end face of the positioning frame, the fixing plates are arranged between the front and rear two positioning plates and the fixing protrusion in a sliding manner, the reset spring rod is arranged between the front and rear two fixing plates and the fixing protrusion, the lifting frame is arranged on the upper end face of the fixing protrusion, the connecting cylinder is arranged on the lower end face of the horizontal section of the lifting frame through a cylinder seat, a tensioning plate is arranged on the lower end face of the telescopic end of the connecting cylinder, zhang Gecao is arranged on the lower end face of the tensioning plate, zhang Gecao is of an isosceles trapezoid structure, and the front side wall and the rear side wall of the tensioning groove are respectively abutted to the front and rear two fixing plates.

Preferably, the adjusting part comprises an opening-closing spring rod, an adjusting frame and a moving wheel, wherein the opening-closing spring rod is arranged on the lower end face of the connecting frame, the adjusting frame is arranged at the lower end of the opening-closing spring rod, and the moving wheel is arranged at the front end and the rear end of the adjusting frame through bearings.

Preferably, the arc under the terminal surface about both ends all install the clamp plate, the limiting plate is all installed to the terminal surface left and right sides under terminal surface and the clamp plate under two support bracket horizontal segments, the limiting plate is all installed to two pressure spring pole lower extremes, the arc moves down the in-process and drives the limiting plate through the clamp plate and support and lean on the workpiece surface, and then the limiting plate can advance further spacing compressing tightly to the work piece in work piece cutting process, avoid the work piece to take place to rock in cutting process, wherein the pressure spring pole plays the work piece and resets and the connection effect.

Preferably, the placing base station upper end face be provided with spacing arch, spacing protruding up end has seted up the joint recess, the inside joint of joint recess has the supporting link, and be located the supporting link top and install the arc backup pad, the receipts silo has been seted up to arc backup pad up end, arc backup pad up end just is located and receives the silo front and back both sides and installs the blotter, spacing arch can carry out the spacing of left right direction to the work piece, avoid the work piece to take place the displacement of left right direction in cutting process, the arc backup pad can play the support component effect to the work piece in work piece cutting process, avoid the work piece too big fracture that causes the work piece of atress in cutting process, the receipts silo can be collected the fused material that the cutting process produced, the blotter can reduce the rigid impact of work piece in the arc backup pad, play the cushioning effect to the work piece.

Preferably, the gas collecting cavity is formed in the adjusting frame, a plurality of air inlets communicated with the gas collecting cavity are uniformly formed in the lower end face of the adjusting frame, an air pump communicated with the gas collecting cavity is installed on the left end face of the adjusting frame, the air pump is started to suck waste gas generated in the cutting process into the gas collecting cavity through the air inlets, and the influence on environmental sanitation caused by the fact that the waste gas generated in the cutting process is discharged into the air is avoided.

Preferably, the clamping rubber pads are arranged on the opposite surfaces of the front fixing plate and the rear fixing plate, and the clamping rubber pads can increase the contact area between the fixing plates and the workpiece, so that the workpiece is more stable in the cutting process, and can protect the workpiece.

Preferably, the cutting frame horizontal segment up end run through to slide and be provided with spacing, and spacing lower extreme is fixed at the arc up end, spacing can play limiting displacement to the arc in cutting process, avoid electronic slider to remove the in-process because the arc span is too big to cause rocking of arc, improve the stability of arc in cutting process.

The invention has the beneficial effects that: 1. in the positioning mechanism designed by the invention, when a workpiece moves to the position near the positioning plate from back to front, the bidirectional screw rod is rotated to drive the positioning plate to move towards the inside of the empty groove through the positioning frame, then the bidirectional screw rod is rotated to drive the positioning plate to move back and forth, and further the positioning plate can drive the workpiece to move back and forth according to the movement of the workpiece in the empty groove, so that the part between the front and back adjacent empty grooves is just positioned under the laser cutting instrument, thereby ensuring that the laser cutting instrument can not cut the empty groove part of the workpiece when cutting the workpiece, ensuring that the cutting surface of the workpiece is kept complete, and improving the cutting effect of the workpiece.

2. In the cutting mechanism designed by the invention, the arc-shaped plate is matched with the workpiece in the workpiece cutting process, so that the distance between the laser cutting instrument and the arc-shaped surface of the workpiece can be kept constant, kinetic energy loss of high-speed airflow in the cutting process of the laser cutting instrument can be avoided, and the high-speed airflow can be prevented from generating return pressure, so that molten substances generated by cutting can be effectively blown away by the high-speed airflow.

3. In the fixing part designed by the invention, when the positioning mechanism finishes positioning the workpiece, the connecting cylinder is started to drive the fixing plates to move oppositely through the opening and closing grooves in the opening and closing plate, and then the two fixing plates can clamp the part between the two empty grooves, so that the fixing plates can fix the positioned workpiece, the workpiece is prevented from shaking in the cutting process, and the stability of the workpiece is improved.

Drawings

The invention is further illustrated by the following examples in conjunction with the drawings.

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a partially enlarged view of fig. 1 a according to the present invention.

Fig. 3 is a partial enlarged view of the present invention at B of fig. 1.

Fig. 4 is a perspective view of a portion of the positioning mechanism of the present invention.

FIG. 5 is a partial top view of the positioning mechanism of the present invention.

Fig. 6 is a front view of the present invention.

Fig. 7 is a partial enlarged view of the invention at C of fig. 6.

FIG. 8 is a schematic view of a three-dimensional structure of the support link, the arc-shaped support plate and the cushion pad.

Fig. 9 is a schematic view of the internal structure of the adjusting bracket of the present invention.

Fig. 10 is a schematic perspective view of a workpiece according to the present invention.

In the figure: 1. placing a base platform; 11. a limiting bulge; 12. a support link; 13. an arc-shaped support plate; 14. a material receiving groove; 15. a cushion pad; 2. a support bracket; 3. a cutting frame; 31. a limiting frame; 4. a positioning mechanism; 41. a bidirectional screw; 42. positioning the frame; 421. a sliding projection; 43. a bidirectional lead screw; 44. positioning a plate; 45. a fixed part; 451. a return spring lever; 452. a fixing plate; 4521. clamping the rubber pad; 453. a lifting frame; 454. connecting the cylinder; 455. zhang Geban; 5. a cutting mechanism; 51. a lifting cylinder; 52. an arc-shaped plate; 521. pressing a plate; 522. compressing the spring rod; 523. a limiting plate; 53. an electric slider; 54. a connecting frame; 55. an adjustment section; 551. opening and closing the spring rod; 552. an adjusting bracket; 5521. a gas collection cavity; 5522. an air inlet; 5523. an air pump; 554. a moving wheel; 56. a laser cutting instrument; 6. a workpiece; 61. and (4) emptying the groove.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

Referring to fig. 1 and 6, a laser cutting device with locate function, including placing base station 1, support bracket 2, cutting frame 3, positioning mechanism 4 and cutting mechanism 5, place the support bracket 2 that 1 up end left and right sides mid-mounting of base station has Contraband type structure, the cutting frame 3 of Contraband type structure is installed jointly to two support bracket 2 up ends, cutting mechanism 5 is installed to the terminal surface under the 3 horizontal segments of cutting frame, place base station 1 up end and lie in two support bracket 2 inside and all install positioning mechanism 4.

Referring to fig. 6 and 8, the upper end surface of the placing base station 1 is provided with a limiting protrusion 11, the upper end surface of the limiting protrusion 11 is provided with a clamping groove, the clamping groove is internally clamped with a support connecting rod 12, an arc-shaped support plate 13 is arranged above the support connecting rod 12, a material receiving groove 14 is arranged on the upper end surface of the arc-shaped support plate 13, cushion pads 15 are arranged on the upper end surface of the arc-shaped support plate 13 and on the front side and the rear side of the material receiving groove 14, the limiting protrusion 11 can limit the workpiece 6 in the left-right direction, the workpiece 6 is prevented from moving in the left-right direction in the cutting process, the arc-shaped support plate 13 can play a supporting component force role for the workpiece 6 in the cutting process, the workpiece 6 is prevented from being broken due to the excessive stress in the cutting process, the material receiving groove 14 can collect molten materials generated in the cutting process, the cushion pads 15 can reduce the rigid impact of the workpiece 6 on the arc-shaped support plate 13, and play a buffering role for the workpiece 6.

Referring to fig. 1, the upper end surface of the horizontal section of the cutting frame 3 is provided with a limiting frame 31 in a penetrating and sliding manner, the lower end of the limiting frame 31 is fixed on the upper end surface of the arc-shaped plate 52, the limiting frame 31 can limit the arc-shaped plate 52 in the cutting process, the situation that the arc-shaped plate 52 shakes due to the overlarge span of the arc-shaped plate 52 in the moving process of the electric sliding block 53 is avoided, and the stability of the arc-shaped plate 52 in the cutting process is improved.

Referring to fig. 1, fig. 4 and fig. 5, the positioning mechanism 4 includes a bidirectional screw 41, a positioning frame 42, a bidirectional screw 43, a positioning plate 44 and a fixing portion 45, wherein a sliding groove extending from left to right is formed in the middle of the base platform 1, a sliding protrusion 421 is provided at the lower end of the positioning frame 42, the positioning frame 42 is slidably disposed at the left side and the right side of the sliding groove through the sliding protrusion 421, the bidirectional screw 41 is installed between the two sliding protrusions 421 through threads, a front-back symmetrical positioning sliding groove is formed in the upper end surface of each positioning frame 42, the positioning plate 44 with an L-shaped structure is disposed inside the front-back adjacent two positioning sliding grooves, a vertical section of the positioning plate 44 is slidably disposed inside the positioning sliding groove, the horizontal section of the positioning plate 44 horizontally places the middle of the base platform 1 to extend, the bidirectional screw 43 is installed between the front-back two positioning sliding grooves through a bearing at the positioning frame 42, the front-back ends of the bidirectional screw 43 are screwed with the vertical section of the positioning plate 44, and the fixing portion 45 is installed between the front-back two positioning plates 44 at the upper end surface of the positioning frame 42.

Referring to fig. 1, 3 and 7, the cutting mechanism 5 includes a lifting cylinder 51, an arc-shaped plate 52, an electric slider 53, a connecting frame 54, an adjusting portion 55 and a laser cutting instrument 56, wherein the lifting cylinder 51 is mounted in the middle of the lower end face of the horizontal section of the cutting frame 3 through a cylinder block, the arc-shaped plate 52 is mounted on the lower end face of the telescopic end of the lifting cylinder 51, the electric slider 53 is mounted on the lower end face of the arc-shaped plate 52, and the connecting frame 54, the adjusting portion 55 and the laser cutting instrument 56 are sequentially mounted on the lower end face of the electric slider 53 from top to bottom.

When the cutting machine works specifically, a workpiece 6 to be cut is placed on the placing base platform 1, the position to be cut of the workpiece 6 is determined according to actual cutting requirements, the workpiece 6 is manually pushed to move forwards from back to front, so that the position to be cut of the workpiece 6 is moved to the lower side of the arc-shaped plate 52, the positioning plate 44 is positioned on the side edge of the empty groove 61, the positioning plate 44 is driven to move towards the opposite direction by rotating the bidirectional screw 41 through the positioning frame 42, so that the positioning plate 44 is inserted into the empty groove 61, after the positioning plate 44 is moved into the empty groove 61, the positioning plate 44 is driven to move back and forth by rotating the bidirectional screw 43, when the part between two adjacent empty grooves 61 is positioned on the rear side of the laser cutting instrument 56, the positioning plate 44 in front moves forwards to drive the workpiece 6 to move forwards by pushing the inner wall of the empty groove 61, so that the part between two adjacent empty grooves 61 and the laser cutting instrument 56 are positioned on the same vertical plane, when the part between two adjacent empty slots 61 is located at the front side of the laser cutting instrument 56, the rear positioning plate 44 moves backwards to drive the workpiece 6 to move backwards by pushing the inner wall of the empty slot 61, so that the part between two adjacent empty slots 61 and the laser cutting instrument 56 are located on the same vertical plane, wherein the middle point of the connecting line between the two adjacent positioning plates 44 is located on the same vertical plane as the laser cutting instrument 56, after the workpiece 6 is positioned, the lifting cylinder 51 is started to drive the arc plate 52 to move downwards, and further the arc plate 52 drives the laser cutting instrument 56 to move above the surface of the workpiece 6 through the adjusting part 55, the electric slider 53 is started to drive the laser cutting instrument 56 to cut the workpiece 6 by mutually matching the connecting frame 54 and the adjusting part 55, wherein the arc plate 52 can ensure that the distances between the laser cutting instrument 56 and the workpiece 6 are kept basically consistent.

Referring to fig. 4, the fixing portion 45 includes a return spring bar 451, a fixing plate 452, a lifting frame 453, a connecting cylinder 454 and Zhang Geban 455, wherein a fixing protrusion is disposed in the middle of the upper end surface of the positioning frame 42, a fixing plate 452 is slidably disposed between the front and rear positioning plates 44 and the fixing protrusion, the return spring bar 451 is disposed between the front and rear fixing plates 452 and the fixing protrusion, the lifting frame 453 is mounted on the upper end surface of the fixing protrusion, a connecting cylinder 454 is mounted on the lower end surface of the horizontal section of the lifting frame 453 through a cylinder seat, a tensioning plate 455 is mounted on the lower end surface of the telescopic end of the connecting cylinder 454, a tensioning slot is formed in the lower end surface of the Zhang Geban 455, and Zhang Gecao is an isosceles trapezoid structure, the front and rear side walls of the tensioning slot abut against the front and rear fixing plates 452 respectively, during operation, when the positioning plate 44 moves into the hollow slot 61, the fixing plate 452 moves synchronously into the hollow slot 61, after the positioning of the workpiece 6 through the positioning plate 44, the connecting cylinder 454 starts to drive the tensioning plate 455 to move, and further move into the fixing plate 452 into the fixing slot, so that the fixing plate 451 can move, and the fixing plate 452 can move, thereby improving the stability of the fixing plate 451, and further, the fixing plate can move in the fixing plate 451, and further, so as a process, the fixing plate can be capable of cutting process, and further, so as to prevent the fixing plate 6, the fixing plate 6 from swinging.

Referring to fig. 4 and 5, a clamping rubber pad 4521 is mounted on an opposite surface of the fixing plate 452 adjacent to the front and back, and the clamping rubber pad 4521 can increase a contact area between the fixing plate 452 and the workpiece 6, so that the workpiece 6 is more stable during the cutting process, and can also protect the workpiece 6.

Referring to fig. 1, fig. 2 and fig. 6, the pressing plates 521 are installed at the left and right ends of the lower end surface of the arc plate 52, the pressing spring rods 522 are installed at the left and right sides of the lower end surface of the two horizontal sections of the two support brackets 2 and the pressing plates 521, the limiting plates 523 are installed at the lower ends of the two pressing spring rods 522, the limiting plates 523 are driven by the pressing plates 521 to abut against the surface of the workpiece 6 in the downward moving process of the arc plate 52, the limiting plates 523 can further limit and compress the workpiece 6 in the cutting process of the workpiece 6, the workpiece 6 is prevented from shaking in the cutting process, and the pressing spring rods 522 play roles in resetting and connecting the workpiece 6.

Referring to fig. 3, the adjusting portion 55 includes an opening-closing spring rod 551, an adjusting frame 552 and a moving wheel 554, wherein the opening-closing spring rod 551 is installed on the lower end surface of the connecting frame 54, the adjusting frame 552 is installed at the lower end of the opening-closing spring rod 551, the moving wheel 554 is installed at the front end and the rear end of the adjusting frame 552 through a bearing, the opening-closing spring rod 551 and the moving wheel 554 are mutually matched to drive the laser cutting instrument 56 to be always at a certain distance from the surface of the workpiece 6, so that it is ensured that the laser cutting instrument 56 does not generate kinetic energy loss in the high-speed airflow during the cutting process, and it is ensured that the high-speed airflow does not generate a turning pressure so that the molten material generated by cutting can be effectively blown away by the high-speed airflow.

Referring to fig. 9, the gas collection chamber 5521 is provided inside the adjusting frame 552, a plurality of gas inlets 5522 communicated with the gas collection chamber 5521 are uniformly provided on the lower end surface of the adjusting frame 552, the gas pump 5523 communicated with the gas collection chamber 5521 is installed on the left end surface of the adjusting frame 552, the gas pump 5523 is started and can suck the waste gas generated in the cutting process into the gas collection chamber 5521 through the gas inlets 5522, and the influence on environmental sanitation caused by the emission of the waste gas generated in the cutting process into the air is avoided.

The invention provides a method for positioning a workpiece by a laser cutting device with a positioning function, which comprises the following steps: the first step is as follows: placing and moving: the workpiece 6 to be cut is placed on the placing base platform 1, the position to be cut of the workpiece 6 is determined according to actual cutting requirements, the workpiece 6 is pushed to move forwards from back to front manually, the position to be cut of the workpiece 6 is moved to the position below the arc-shaped plate 52, and at the moment, the positioning plate 44 is located on the side edge of the empty groove 61.

The second step is that: positioning and adjusting: the positioning plate 44 is driven by rotating the bidirectional screw rod 41 through the positioning frame 42 to move in the opposite direction so that the positioning plate 44 is inserted into the empty slot 61, after the positioning plate 44 moves into the empty slot 61, the bidirectional screw rod 43 is rotated again to drive the positioning plate 44 to move back and forth, and then the positioning plate 44 moves in the empty slot 61 according to the offset degree of the workpiece 6 so as to drive the workpiece 6 to move back and forth, so that the part between the two adjacent empty slots 61 in the front and back is just positioned under the laser cutting instrument 56.

The third step: cutting treatment: after the workpiece 6 is positioned, the lifting cylinder 51 is started to drive the arc-shaped plate 52 to move downwards, then the arc-shaped plate 52 drives the laser cutting instrument 56 to move to the upper part of the surface of the workpiece 6 through the adjusting part 55, and the electric sliding block 53 is started to drive the laser cutting instrument 56 to cut the workpiece 6 through the mutual matching of the connecting frame 54 and the adjusting part 55.

The fourth step: collecting and treating: the collection processing is performed on the workpiece 6 when the cutting of the workpiece 6 is finished.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a laser cutting device with locate function, is including placing base station (1), support bracket (2), cutting frame (3), positioning mechanism (4) and cutting mechanism (5), its characterized in that: place base station (1) up end left and right sides mid-mounting have support bracket (2) of Contraband type structure, two support bracket (2) up end install cutting frame (3) of Contraband type structure jointly, cutting frame (3) horizontal segment down the terminal surface install cutting mechanism (5), place base station (1) up end and be located two and hold inside all installing positioning mechanism (4) of bracket (2), wherein:

the positioning mechanism (4) comprises a bidirectional screw rod (41), a positioning rack (42), a bidirectional screw rod (43), positioning plates (44) and fixing parts (45), wherein a sliding groove which runs from left to right is formed in the middle of the placing base platform (1), sliding protrusions (421) are arranged at the lower end of the positioning rack (42), the positioning rack (42) is arranged on the left side and the right side of the sliding groove in a sliding mode through the sliding protrusions (421), the bidirectional screw rod (41) is installed between the two sliding protrusions (421) through threads, front-back symmetrical positioning sliding grooves are formed in the upper end face of each positioning rack (42), the positioning plates (44) of an L-shaped structure are arranged inside the front-back two adjacent positioning sliding grooves, the vertical sections of the positioning plates (44) are arranged inside the positioning sliding grooves in a sliding mode, the horizontal sections of the positioning plates (44) extend along the middle of the placing base platform (1) in the horizontal direction, the bidirectional screw rod (43) is installed on the positioning rack (42) through bearings and is located between the front-back two positioning sliding grooves, the front-back two front-back ends of the bidirectional screw rod (43) are in threaded connection with the positioning plates (44), and the upper end faces of the positioning rack (42) are located between the front-back fixing parts;

the cutting mechanism (5) comprises a lifting cylinder (51), an arc-shaped plate (52), an electric sliding block (53), a connecting frame (54), an adjusting part (55) and a laser cutting instrument (56), wherein the lifting cylinder (51) is installed in the middle of the lower end face of the horizontal section of the cutting frame (3) through a cylinder seat, the arc-shaped plate (52) is installed on the lower end face of the telescopic end of the lifting cylinder (51), the electric sliding block (53) is installed on the lower end face of the arc-shaped plate (52), and the connecting frame (54), the adjusting part (55) and the laser cutting instrument (56) are sequentially installed on the lower end face of the electric sliding block (53) from top to bottom;

the fixing part (45) comprises a reset spring rod (451), a fixing plate (452), a lifting rack (453), a connecting cylinder (454) and Zhang Geban (455), wherein a fixing bulge is arranged in the middle of the upper end face of the positioning rack (42), the fixing plate (452) is arranged between the front positioning plate (44) and the fixing bulge in a sliding mode, the reset spring rod (451) is arranged between the front fixing plate (452) and the fixing bulge, the lifting rack (453) is arranged on the upper end face of the fixing bulge, the connecting cylinder (454) is arranged on the lower end face of the horizontal section of the lifting rack (453) through a cylinder seat, a tensioning plate (455) is arranged on the lower end face of the telescopic end of the connecting cylinder (454), an opening and closing groove is formed in the lower end face of Zhang Geban (455), the Zhang Gecao is of an isosceles trapezoid structure, and the front and rear opening and closing grooves respectively abut against the two fixing plates (452);

the adjusting part (55) comprises an opening-closing spring rod (551), an adjusting frame (552) and a moving wheel (554), wherein the opening-closing spring rod (551) is installed on the lower end face of the connecting frame (54), the adjusting frame (552) is installed at the lower end of the opening-closing spring rod (551), and the moving wheel (554) is installed at the front end and the rear end of the adjusting frame (552) through bearings.

2. The laser cutting device with the positioning function according to claim 1, wherein: pressing plates (521) are installed at the left end and the right end of the lower end face of the arc-shaped plate (52), pressing spring rods (522) are installed on the left side and the right side of the lower end face of the horizontal sections of the two support brackets (2) and the pressing plates (521), and limiting plates (523) are installed at the lower ends of the two pressing spring rods (522).

3. The laser cutting device with positioning function according to claim 1, characterized in that: placing base station (1) up end be provided with spacing arch (11), the joint recess has been seted up to spacing arch (11) up end, the inside joint of joint recess has supporting connecting rod (12), and is located supporting connecting rod (12) top and installs arc backup pad (13), receiving tank (14) have been seted up to arc backup pad (13) up end, both sides are installed blotter (15) around arc backup pad (13) up end just is located receiving tank (14).

4. The laser cutting device with the positioning function according to claim 1, wherein: the gas collection chamber (5521) has been seted up to alignment jig (552) inside, a plurality of air inlets (5522) that link up mutually with gas collection chamber (5521) have evenly been seted up to alignment jig (552) lower terminal surface, air pump (5523) that link up mutually with gas collection chamber (5521) are installed to alignment jig (552) left end face.

5. The laser cutting device with the positioning function according to claim 1, wherein: and clamping rubber pads (4521) are arranged on the opposite surfaces of the front and back adjacent fixing plates (452).

6. The laser cutting device with positioning function according to claim 1, characterized in that: the cutting frame (3) horizontal segment up end run through the slip and be provided with spacing (31), and spacing (31) lower extreme is fixed at arc (52) up end.