CN111301994A

CN111301994A - Laser cutting machine

Info

Publication number: CN111301994A
Application number: CN202010062597.8A
Authority: CN
Inventors: 孙国强; 柳锡栋; 周隆基
Original assignee: Qingdao Croft Industry And Trade Co Ltd
Current assignee: Qingdao Croft Industry And Trade Co Ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-06-19
Anticipated expiration: 2040-01-20
Also published as: CN111301994B

Abstract

The invention discloses a laser cutting machine, which belongs to the field of laser cutting equipment and comprises a laser cutting machine body, wherein an automatic feeding device is arranged on one side of the laser cutting machine body; the automatic feeding device comprises a feeding frame fixedly arranged on one side of the laser cutting machine body and a vertical rod fixedly arranged on the other side of the laser cutting machine body, and a clamping mechanism is arranged at the top of the vertical rod; the clamping mechanism comprises a first connecting rod which is rotatably connected to the top of the vertical rod, a first hydraulic cylinder is hinged to the position, close to the top, of the vertical rod, a cylinder body of the first hydraulic cylinder is hinged to the vertical rod, the end part of a piston rod of the first hydraulic cylinder is hinged to the bottom of the first connecting rod, the end part, far away from the vertical rod, of the first connecting rod is hinged to a second connecting rod, a third hydraulic cylinder is hinged between the first connecting rod and the second connecting rod, the cylinder body of the second hydraulic cylinder is hinged to the side wall of the second connecting rod, the end part of a piston rod of the second hydraulic cylinder is hinged to the side wall of the.

Description

Laser cutting machine

Technical Field

The invention relates to the field of laser cutting equipment, in particular to a laser cutting machine.

Background

The laser cutting machine focuses laser emitted from a laser into a laser beam with high power density through an optical path system. The laser beam irradiates the surface of the workpiece to make the workpiece reach a melting point or a boiling point, and simultaneously, the high-pressure gas coaxial with the laser beam blows away the molten or gasified metal. And finally, the material is cut along with the movement of the relative position of the light beam and the workpiece, so that the cutting purpose is achieved.

In the other side pipe course of working, need in adding laser cutting machine's organism with square pipe to the other side pipe cuts, and the traditional mode all adopts artifical material loading, installs square pipe in laser cutting machine originally internally through the manual work, thereby leads to staff's intensity of labour big, and work efficiency is low.

Disclosure of Invention

The invention aims to provide a laser cutting machine, wherein an automatic feeding device is arranged on one side of the laser cutting machine, and the automatic feeding device can automatically install a square tube in the laser cutting machine, replace the traditional manual feeding, reduce the labor intensity of workers and improve the working efficiency.

The technical purpose of the invention is realized by the following technical scheme:

a laser cutting machine comprises a laser cutting machine body, wherein an automatic feeding device for automatically feeding a square tube into the laser cutting machine body is arranged on one side of the laser cutting machine body; the automatic feeding device comprises a feeding frame fixedly arranged on one side of the laser cutting machine body and an upright rod fixedly arranged on the other side of the laser cutting machine body, and a clamping mechanism extending onto the feeding frame is arranged at the top of the upright rod; the clamping mechanism comprises a first connecting rod which is rotatably connected to the top of the vertical rod, a first hydraulic cylinder is hinged to the position, close to the top, of the vertical rod, a cylinder body of the first hydraulic cylinder is hinged to the vertical rod, the end portion of a piston rod of the first hydraulic cylinder is hinged to the bottom of the first connecting rod, the end portion, far away from the vertical rod, of the first connecting rod is hinged to a second connecting rod, a third hydraulic cylinder is hinged between the first connecting rod and the second connecting rod, the cylinder body of the second hydraulic cylinder is hinged to the side wall of the second connecting rod, the end portion of the piston rod of.

Through adopting the above-mentioned scheme, when other side pipe automatic feeding, the piston rod extension or the shortening of pneumatic cylinder one, be convenient for drive connecting rod one and two vertical motions of connecting rod, can drive the centre gripping subassembly and move in vertical direction, the piston rod extension or the shortening of pneumatic cylinder two, be convenient for drive connecting rod two overturns for connecting rod one, can drive the centre gripping subassembly and move at the horizontal direction, be convenient for manage from last work or material rest centre gripping to laser cutting machine this internally, fixture holds square pipe centre gripping and under the cooperation of pneumatic cylinder one and pneumatic cylinder two, manage automatic installation in laser cutting machine originally internally, replace traditional artifical material loading, reduce staff's intensity of labour, can also improve work efficiency.

The invention is further configured to: the second connecting rod is the setting of L type, the centre gripping subassembly is including setting firmly in the locating lever of two bottoms of connecting rod, two centre gripping cylinders have set firmly on the locating lever, the cylinder body of centre gripping cylinder sets firmly in the top of locating lever, the tailpiece of the piston rod portion of centre gripping cylinder extends to the below of locating lever and the gag lever post that fixed connection has the level to set up, the both sides at locating lever both ends articulate respectively has first connecting rod and second connecting rod, the one end that the locating lever was kept away from to first connecting rod articulates there is the third connecting rod, the one end that the locating lever was kept away from to the second connecting rod articulates there is the fourth connecting rod, third connecting rod and fourth connecting rod cross arrangement, and.

Through adopting above-mentioned scheme, when centre gripping side's pipe, the piston rod extension of centre gripping cylinder promotes the gag lever post downstream, makes third connecting rod and fourth connecting rod bottom centre gripping in the both sides of square pipe, withdraws when the piston rod of centre gripping cylinder, promotes the inside upset of third connecting rod and fourth connecting rod, presss from both sides tight with square pipe, can be with square pipe centre gripping in third connecting rod and fourth connecting rod in, be convenient for carry out the material loading to square pipe.

The invention is further configured to: and the bottom of one side of the third connecting rod, which is opposite to the fourth connecting rod, is fixedly provided with an arc-shaped clamping plate.

Through adopting above-mentioned scheme, the grip block is used for the butt in the both sides of square pipe, makes third connecting rod and fourth connecting rod more stable to the centre gripping of square pipe.

The invention is further configured to: one side of the feeding frame, which is close to the laser cutting machine body, is fixedly provided with three support frames with the same structure, the three support frames are positioned in the same vertical plane, a gap is reserved between every two adjacent support frames, and the support frames are arranged in a Y shape.

Through adopting above-mentioned scheme, the support frame is used for placing the side's pipe that supplies third connecting rod and fourth connecting rod centre gripping, prevents that side's pipe from dropping from the support frame, can be convenient for third connecting rod and fourth connecting rod centre gripping side's pipe.

The invention is further configured to: a feeding assembly is arranged on one side of the feeding frame, which is far away from the plasma cutting machine body, and a material conveying assembly is arranged between the feeding assembly and the supporting frame; the feeding assembly comprises a supporting plate located on the feeding frame, the supporting plate is arranged downwards towards one side of the supporting frame, damping springs vertically arranged are fixedly arranged at four corners of the bottom of the supporting plate, one end of each damping spring is fixedly connected to the feeding frame, the other end of each damping spring is fixedly connected to the bottom of the supporting plate, and a vibration motor is fixedly arranged on the side wall of the supporting plate.

Through adopting above-mentioned scheme, vibrating motor vibrates, can with the automatic cunning of the square pipe in the backup pad to pass the material subassembly on, damping spring can reduce the vibration that vibrating motor produced, reduces vibrating motor's vibration to the damage of last work or material rest.

The invention is further configured to: the material conveying assembly comprises a third hydraulic cylinder fixedly arranged on the material feeding frame, the third hydraulic cylinder is arranged in a vertical plane and is parallel to the vertical plane of the support frame, the cylinder body of the third hydraulic cylinder is fixedly arranged on the material feeding frame, the end part of the piston rod of the third hydraulic cylinder is hinged with a top plate, and one side, close to the material feeding frame, of the piston rod of the third hydraulic cylinder is connected with a driving piece for driving the top plate to overturn around the hinged point of the top plate and the piston rod of the third hydraulic cylinder.

Through adopting above-mentioned scheme, vibrating motor drive side pipe sliding to the roof on, the piston rod extension of pneumatic cylinder three promotes roof upward movement to the top that the roof is higher than the support frame, and driving piece drive roof is to the direction upset of support frame, can be with square pipe upset on the roof to in can be automatic square pipe material loading to the support frame, the third connecting rod and the fourth connecting rod centre gripping side pipe of being convenient for.

The invention is further configured to: the driving piece comprises a fixed plate fixedly arranged on a piston rod of the hydraulic cylinder III, the top of the fixed plate is hinged with a material ejecting cylinder, a cylinder body of the material ejecting cylinder is hinged on the fixed plate, and the end part of the piston rod of the material ejecting cylinder is hinged at the bottom of the top plate.

Through adopting above-mentioned scheme, when the square pipe on the roof overturns to the last work or material rest, the piston rod of liftout cylinder withdraws, can drive the roof around its pin joint upset with the piston rod of pneumatic cylinder three, can overturn square pipe on the roof to the support frame in.

The invention is further configured to: and a baffle is vertically arranged at the bottom of one side of the top plate, which is far away from the material ejection cylinder.

Through adopting above-mentioned scheme, when the piston rod of pneumatic cylinder three extended, the baffle can block one side of backup pad bottom, prevented that the square pipe in the backup pad from dropping.

The invention is further configured to: the bottom of roof sets firmly the locating piece, sets firmly on the baffle to slide and connect the reference column in the locating piece, and the cover is equipped with buffer spring on the reference column, and buffer spring's one end fixed connection is on last work or material rest, and other end fixed connection is on the locating piece.

Through adopting above-mentioned scheme, when the roof around its articulated upset of piston rod tip with the pneumatic cylinder three, the backup pad gives the thrust of baffle, and baffle compression buffer spring, buffer spring's tension makes the baffle butt all the time in the edge of backup pad, prevents that the square pipe in the backup pad from dropping.

In conclusion, the invention has the following beneficial effects:

1. the top of the vertical rod is rotatably connected with a first connecting rod, a first hydraulic cylinder is hinged at a position, close to the top, of the vertical rod, a cylinder body of the first hydraulic cylinder is hinged on the vertical rod, a piston rod end part of the first hydraulic cylinder is hinged at the bottom of the first connecting rod, a second connecting rod is hinged at an end part, far away from the vertical rod, of the first connecting rod, a third hydraulic cylinder is hinged between the first connecting rod and the second connecting rod, a cylinder body of the second hydraulic cylinder is hinged at a side wall of the second connecting rod, a piston rod end part of the second hydraulic cylinder is hinged at a side wall of the second connecting rod, a clamping component for clamping a square tube is arranged at an end part, far away from the first connecting rod, of the second connecting rod, when the square tube is automatically fed, a piston rod of the first hydraulic cylinder extends or shortens, the, being convenient for manage from last work or material rest centre gripping to laser cutting machine this internally, fixture holds square pipe and under the cooperation of pneumatic cylinder one and pneumatic cylinder two, manages automatic installation with square pipe in laser cutting machine this internally, replaces traditional artifical material loading, reduces staff's intensity of labour, can also improve work efficiency.

2. The positioning rod is fixedly arranged at the bottom of the second connecting rod, the two clamping cylinders are fixedly arranged on the positioning rod, the cylinder body of each clamping cylinder is fixedly arranged at the top of the positioning rod, the end part of a piston rod of each clamping cylinder extends to the lower part of the positioning rod and is fixedly connected with a horizontally arranged limiting rod, the two sides of the two ends of the positioning rod are respectively hinged with a first connecting rod and a second connecting rod, one end of the first connecting rod, far away from the positioning rod, is hinged with a third connecting rod, one end of the second connecting rod, far away from the positioning rod, is hinged with a fourth connecting rod, the third connecting rod and the fourth connecting rod are arranged in a crossed manner, the middle parts of the third connecting rod and the fourth connecting rod are hinged together, when the square tube is clamped, the piston rod of each clamping cylinder extends, the limiting rod is pushed to move downwards, the bottoms of the third connecting rod and the, the square tube can be clamped in the third connecting rod and the fourth connecting rod, so that the square tube can be conveniently fed;

3. the bottom through at the roof has set firmly the locating piece, set firmly on the baffle and slide and connect the reference column in the locating piece, the cover is equipped with buffer spring on the reference column, buffer spring's one end fixed connection is on last work or material rest, other end fixed connection is on the locating piece, when the roof around its articulated upset of piston rod tip with the pneumatic cylinder three, thrust is given to the baffle by the backup pad, baffle compression buffer spring, buffer spring's tension makes the baffle butt all the time in the edge of backup pad, prevent that the square pipe in the backup pad from dropping.

Drawings

FIG. 1 is an isometric view of an embodiment;

FIG. 2 is a schematic structural view of an automatic loading device;

FIG. 3 is a schematic structural view of the clamping assembly;

FIG. 4 is a schematic structural view of a feeding assembly and a transfer assembly;

fig. 5 is a schematic structural diagram of the material transfer assembly.

In the figure, 1, a laser cutter body; 2. an automatic feeding device; 21. a feeding frame; 211. a support frame; 22. erecting a rod; 23. a clamping mechanism; 231. a first connecting rod; 232. a second connecting rod; 233. a first hydraulic cylinder; 234. a second hydraulic cylinder; 24. a clamping assembly; 241. positioning a rod; 242. a clamping cylinder; 243. a limiting rod; 244. a first link; 245. a second link; 246. a third link; 247. a fourth link; 248. a clamping plate; 25. a feeding assembly; 251. a support plate; 252. a damping spring; 253. a vibration motor; 26. a material conveying component; 261. a hydraulic cylinder III; 262. a top plate; 263. a drive member; 2631. a fixing plate; 2632. a material ejection cylinder; 264. a baffle plate; 265. positioning blocks; 266. a positioning column; 267. a buffer spring.

Detailed Description

The utility model provides a laser cutting machine, refers to fig. 1, including laser cutting machine body 1, one side of laser cutting machine body 1 is provided with automatic feeding device 2 with square pipe automatic feeding to laser cutting machine body 1 is inside, can replace traditional artifical material loading to reduce staff's intensity of labour, improve work efficiency.

Referring to fig. 1 and 2, the automatic feeding device 2 comprises a feeding frame 21 fixedly arranged on one side of the laser cutting machine body 1 and an upright rod 22 fixedly arranged on the other side of the laser cutting machine body 1, a clamping mechanism 23 extending onto the feeding frame 21 is arranged at the top of the upright rod 22, and the clamping mechanism 23 clamps a square tube on the feeding frame 21 and automatically feeds materials into the laser cutting machine body 1; the clamping mechanism 23 comprises a first connecting rod 231 rotatably connected to the top of the vertical rod 22, a first hydraulic cylinder 233 is hinged to the position, close to the top, of the vertical rod 22, a cylinder body of the first hydraulic cylinder 233 is hinged to the vertical rod 22, the end part of a piston rod of the first hydraulic cylinder 233 is hinged to the bottom of the first connecting rod 231, the end part, far away from the vertical rod 22, of the first connecting rod 231 is hinged to a second connecting rod 232, a third hydraulic cylinder 261 is hinged between the first connecting rod 231 and the second connecting rod 232, a cylinder body of the second hydraulic cylinder 234 is hinged to the side wall of the second connecting rod 232, the end part, far away from the first connecting rod 231, of; the piston rod of the hydraulic cylinder I233 extends or shortens, the vertical movement of the first connecting rod 231 and the second connecting rod 232 is convenient to drive, the clamping assembly 24 can be driven to move in the vertical direction, the piston rod of the hydraulic cylinder II 234 extends or shortens, the second connecting rod 232 is convenient to drive to overturn relative to the first connecting rod 231, the clamping assembly 24 can be driven to move in the horizontal direction, and the square pipe can be conveniently clamped into the laser cutting machine body 1 from the upper material rack 21.

Referring to fig. 3, the second connecting rod 232 is L-shaped, the clamping assembly 24 includes a positioning rod 241 fixedly disposed at the bottom of the second connecting rod 232, two clamping cylinders 242 are fixedly disposed on the positioning rod 241, a cylinder body of the clamping cylinder 242 is fixedly disposed at the top of the positioning rod 241, a piston rod end of the clamping cylinder 242 extends to the lower side of the positioning rod 241 and is fixedly connected with a horizontally disposed limiting rod 243, two sides of two ends of the positioning rod 241 are respectively hinged with a first connecting rod 244 and a second connecting rod 245, one end of the first connecting rod 244, which is away from the positioning rod 241, is hinged with a third connecting rod 246, one end of the second connecting rod 245, which is away from the positioning rod 241, is hinged with a fourth connecting rod 247, the third connecting rod 246 and the fourth connecting rod 247 are arranged in an intersecting; when the square pipe is clamped, the piston rod of the clamping cylinder 242 extends to push the limiting rod 243 to move downwards, so that the bottoms of the third connecting rod 246 and the fourth connecting rod 247 are clamped on two sides of the square pipe, when the piston rod of the clamping cylinder 242 is retracted, the third connecting rod 246 and the fourth connecting rod 247 are pushed to turn inwards, the square pipe is clamped, the square pipe can be clamped in the third connecting rod 246 and the fourth connecting rod 247, and the square pipe can be conveniently fed. The bottom of the opposite side of the third connecting rod 246 and the fourth connecting rod 247 is fixedly provided with an arc-shaped clamping plate 248, and the clamping plate 248 is used for abutting against two sides of the square tube, so that the clamping of the square tube by the third connecting rod 246 and the fourth connecting rod 247 is more stable.

Referring to fig. 3, three support frames 211 with the same structure are fixedly arranged on one side of the feeding frame 21 close to the laser cutting machine body 1, the three support frames 211 are located in the same vertical plane, a gap is reserved between every two adjacent support frames 211, and the support frames 211 are arranged in a Y shape; the support frame 211 is used for placing a square tube clamped by the third connecting rod 246 and the fourth connecting rod 247, so that the square tube is prevented from falling off from the support frame 211, and the square tube can be conveniently clamped by the third connecting rod 246 and the fourth connecting rod 247.

Referring to fig. 2 and 4, a feeding assembly 25 is arranged on one side of the feeding frame 21 away from the plasma cutting machine body 1, a material conveying assembly 26 is arranged between the feeding assembly 25 and the support frame 211, and the material conveying assembly 26 is used for conveying a square tube on the feeding assembly 25 to the support frame 211 instead of the traditional manual feeding. The feeding assembly 25 comprises a supporting plate 251 positioned on the feeding frame 21, the supporting plate 251 is obliquely and downwardly arranged towards one side of the supporting frame 211, vertically arranged damping springs 252 are fixedly arranged at four corners of the bottom of the supporting plate 251, one end of each damping spring 252 is fixedly connected to the feeding frame 21, the other end of each damping spring 252 is fixedly connected to the bottom of the supporting plate 251, and a vibration motor 253 is fixedly arranged on the side wall of the supporting plate 251; vibrating motor 253 vibrates, can be with the automatic slip of the square pipe on the backup pad 251 to pass on the material subassembly 26, and damping spring 252 can reduce the vibration that vibrating motor 253 produced, reduces vibrating motor 253's vibration to the damage of material loading frame 21.

Referring to fig. 4 and 5, the material conveying assembly 26 includes two hydraulic cylinders three 261 fixed on the material loading frame 21, the two hydraulic cylinders three 261 are arranged in a vertical plane and parallel to the vertical plane of the supporting frame 211, the cylinder bodies of the hydraulic cylinders three 261 are fixed on the material loading frame 21, the end parts of the piston rods of the hydraulic cylinders three 261 are hinged with top plates 262, and one sides of the piston rods of the hydraulic cylinders three 261 close to the material loading frame 21 are connected with driving members 263 for driving the top plates 262 to turn around the hinge points of the piston rods of the hydraulic cylinders three 261; vibration motor 253 drive side's pipe slides to roof 262 on, and the piston rod extension of three 261 of pneumatic cylinder promotes roof 262 upward movement to the top that roof 262 is higher than support frame 211, and driving piece 263 drive roof 262 is to the direction upset of support frame 211, can be with square pipe upset on the roof 262 to in the support frame 211 to can be automatic with square pipe material loading to support frame 211 in, be convenient for third connecting rod 246 and fourth connecting rod 247 centre gripping square pipe. The driving part 263 comprises a fixing plate 2631 fixedly arranged on a piston rod of the hydraulic cylinder three 261, the top of the fixing plate 2631 is hinged with a material ejecting cylinder 2632, a cylinder body of the material ejecting cylinder 2632 is hinged on the fixing plate 2631, and the end part of the piston rod of the material ejecting cylinder 2632 is hinged on the bottom of the top plate 262; when the square tube on the top plate 262 needs to be turned to the upper material frame 21, the piston rod of the ejecting cylinder 2632 is retracted, the top plate 262 can be driven to turn around the hinge point of the piston rod of the hydraulic cylinder three 261, and the square tube on the top plate 262 can be turned to the support frame 211. The vertical baffle 264 that is provided with in one side bottom that the ejector cylinder 2632 was kept away from to roof 262, when the piston rod of three 261 of pneumatic cylinder extends, baffle 264 can block the one side of backup pad 251 bottom, prevents that the square pipe on the backup pad 251 from dropping. A positioning block 265 is fixedly arranged at the bottom of the top plate 262, a positioning column 266 connected in the positioning block 265 in a sliding manner is fixedly arranged on the baffle 264, a buffer spring 267 is sleeved on the positioning column 266, one end of the buffer spring 267 is fixedly connected to the feeding frame 21, and the other end of the buffer spring 267 is fixedly connected to the positioning block 265; when the top plate 262 is hinged and overturned around the end of the piston rod of the hydraulic cylinder three 261, the supporting plate 251 gives a pushing force to the baffle 264, the baffle 264 compresses the buffer spring 267, and the tension of the buffer spring 267 enables the baffle 264 to be always abutted against the edge of the supporting plate 251 to prevent the square pipe on the supporting plate 251 from falling.

The use principle is as follows: placing the square tube on the support plate 251, vibrating the vibration motor 253, and vibrating the square tube on the support plate 251 onto the top plate 262; afterwards, the piston rod of the hydraulic cylinder three 261 extends to push the top plate 262 to move upwards, when the top plate 262 moves to a position higher than the top of the support frame 211, the piston rod of the material ejecting cylinder 2632 retracts to drive the top plate 262 to turn around the hinged point of the top plate 262 with the piston rod of the hydraulic cylinder three 261, the square tube on the top plate 262 is turned over to the support frame 211, the piston rod of the clamping cylinder 242 extends to push the limiting rod 243 to move downwards to clamp the bottoms of the third connecting rod 246 and the fourth connecting rod 247 at two sides of the square tube, and when the piston rod of the clamping cylinder 242 retracts, the third connecting rod 246 and the fourth connecting rod 247 are pushed to turn inwards to clamp the square tube, namely, the square tube can be clamped in the third connecting rod 246 and the fourth connecting rod 247.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a laser cutting machine, includes laser cutting machine body (1), its characterized in that:

an automatic feeding device (2) for automatically feeding the square tube into the laser cutting machine body (1) is arranged on one side of the laser cutting machine body (1);

the automatic feeding device (2) comprises a feeding frame (21) fixedly arranged on one side of the laser cutting machine body (1) and a vertical rod (22) fixedly arranged on the other side of the laser cutting machine body (1), and a clamping mechanism (23) extending to the feeding frame (21) is arranged at the top of the vertical rod (22);

the clamping mechanism (23) comprises a first connecting rod (231) which is rotatably connected to the top of the vertical rod (22), a first hydraulic cylinder (233) is hinged to the position, close to the top, of the vertical rod (22), a cylinder body of the first hydraulic cylinder (233) is hinged to the vertical rod (22), the end portion of a piston rod of the first hydraulic cylinder (233) is hinged to the bottom of the first connecting rod (231), the end portion, away from the vertical rod (22), of the first connecting rod (231) is hinged to a second connecting rod (232), a third hydraulic cylinder (261) is hinged between the first connecting rod (231) and the second connecting rod (232), the cylinder body of the second hydraulic cylinder (234) is hinged to the side wall of the second connecting rod (232), the end portion of the piston rod of the second hydraulic cylinder (234) is hinged to the side wall of the second connecting rod.

2. The laser cutting machine according to claim 1, characterized in that: the second connecting rod (232) is arranged in an L shape, the clamping assembly (24) comprises a positioning rod (241) fixedly arranged at the bottom of the second connecting rod (232), two clamping cylinders (242) are fixedly arranged on the positioning rod (241), the cylinder body of each clamping cylinder (242) is fixedly arranged at the top of the positioning rod (241), the end part of the piston rod of each clamping cylinder (242) extends to the lower part of the positioning rod (241) and is fixedly connected with a horizontally arranged limiting rod (243), two sides of two ends of each positioning rod (241) are respectively hinged with a first connecting rod (244) and a second connecting rod (245), one end of each first connecting rod (244) far away from the positioning rod (241) is hinged with a third connecting rod (246), one end of each second connecting rod (245) far away from the positioning rod (241) is hinged with a fourth connecting rod (247), and the third connecting rods (246) and the, and the middle parts of the third connecting rod (246) and the fourth connecting rod (247) are hinged together.

3. The laser cutting machine according to claim 2, characterized in that: and the bottom of one side of the third connecting rod (246) opposite to the bottom of the fourth connecting rod (247) is fixedly provided with an arc-shaped clamping plate (248).

4. The laser cutting machine according to claim 1, characterized in that: go up work or material rest (21) and be close to one side of laser cutting machine body (1) and set firmly three support frame (211) that the structure is the same, three support frame (211) are located same vertical plane, leave the clearance between two adjacent support frames (211), and support frame (211) are the Y type setting.

5. The laser cutting machine according to claim 1, characterized in that:

a feeding component (25) is arranged on one side of the feeding frame (21) far away from the plasma cutting machine body, and a material conveying component (26) is arranged between the feeding component (25) and the support frame (211);

the feeding assembly (25) comprises a supporting plate (251) located on the upper material rack (21), the supporting plate (251) is arranged downwards towards one side of the supporting frame (211) in an inclined mode, damping springs (252) vertically arranged are fixedly arranged at four corners of the bottom of the supporting plate (251), one end of each damping spring (252) is fixedly connected to the upper material rack (21), the other end of each damping spring is fixedly connected to the bottom of the supporting plate (251), and a vibration motor (253) is fixedly arranged on the side wall of the supporting plate (251).

6. The laser cutting machine according to claim 5, characterized in that: pass material subassembly (26) including two pneumatic cylinders three (261) that set firmly on last work or material rest (21), two pneumatic cylinders three (261) in a vertical plane and with the vertical plane parallel arrangement of support frame (211), the cylinder body of pneumatic cylinder three (261) sets firmly on last work or material rest (21), the piston rod tip of pneumatic cylinder three (261) articulates there is roof (262), one side that the piston rod of pneumatic cylinder three (261) is close to last work or material rest (21) is connected with drive roof (262) around its driving piece (263) with the pin joint upset of the piston rod of pneumatic cylinder three (261).

7. The laser cutting machine according to claim 6, characterized in that: the driving part (263) comprises a fixing plate (2631) fixedly arranged on a piston rod of the hydraulic cylinder III (261), the top of the fixing plate (2631) is hinged with a material ejecting cylinder (2632), a cylinder body of the material ejecting cylinder (2632) is hinged on the fixing plate (2631), and the end part of the piston rod of the material ejecting cylinder (2632) is hinged to the bottom of the top plate (262).

8. The laser cutting machine according to claim 6, characterized in that: and a baffle (264) is vertically arranged at the bottom of one side of the top plate (262) far away from the material ejecting cylinder (2632).

9. The laser cutting machine according to claim 8, characterized in that: the bottom of roof (262) sets firmly locating piece (265), sets firmly on baffle (264) and slides and connect reference column (266) in locating piece (265), and the cover is equipped with buffer spring (267) on reference column (266), and buffer spring (267)'s one end fixed connection is on last work or material rest (21), and the other end fixed connection is on locating piece (265).