CN114985958A

CN114985958A - Full-automatic laser cutting machine

Info

Publication number: CN114985958A
Application number: CN202210418045.5A
Authority: CN
Inventors: 刘国涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-09-02

Abstract

The invention relates to a full-automatic laser cutting machine, in particular to the technical field of laser cutting, which comprises two L-shaped guide rails, wherein the two L-shaped guide rails are symmetrically distributed in the front and back direction, the two L-shaped guide rails are arranged on a plurality of U-shaped supporting frames which are uniformly distributed on the left and right, a plurality of driving rollers are uniformly arranged on the horizontal section of each L-shaped guide rail, a clamping and positioning device is arranged between the two L-shaped guide rails, a laser cutting machine body arranged at the lower end of a lifting device is arranged above the clamping and positioning device, and the lifting device is fixed on an L-shaped fixing frame; the laser cutting machine can move, convey, position and clamp workpieces of different specifications so that the laser cutting machine body can cut the workpieces by laser, the front, back, left and right positions of the workpieces are limited by the clamping strips and the limiting guide plates, and the workpieces are clamped and fixed so that the cutting position of the workpieces and the cutting execution end position of the laser cutting machine body are accurately aligned.

Description

Full-automatic laser cutting machine

Technical Field

The application relates to the technical field of laser cutting, in particular to a full-automatic 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 enable the workpiece to reach a melting point or a boiling point, simultaneously, the high-pressure gas coaxial with the beam blows away the melted or gasified metal, and the material finally forms a kerf along with the movement of the relative position of the beam and the workpiece, so that the purpose of cutting is achieved. The laser cutting processing is to replace the traditional mechanical knife by invisible light beams, and has the characteristics of high precision, fast cutting, no limitation on cutting patterns, automatic typesetting, material saving, smooth cut, low processing cost and the like, the mechanical part of the laser knife head is not in contact with the workpiece, and the surface of the workpiece can not be scratched in the working process; the laser cutting speed is high, the cut is smooth and flat, and subsequent processing is generally not needed; the cutting heat affected zone is small, the deformation of the plate is small, and the cutting seam is narrow; the notch has no mechanical stress and no shearing burr; the processing precision is high, the repeatability is good, and the surface of the material is not damaged; the numerical control programming can be used for processing any plan, the whole board with large breadth can be cut, a die does not need to be opened, and the method is economical and time-saving.

In the existing laser cutting machine, as the chinese patent with publication number CN214721589U, it discloses a full-automatic laser cutting machine, which comprises a cutting machine main body, a clamping mechanism and a laser cutting mechanism, wherein two sets of conveyor belts are symmetrically arranged on the upper end surface of the cutting machine main body, a lifting mechanism is arranged between the two sets of conveyor belts, two sides of the upper end surface of the cutting machine main body are provided with protrusions, the protrusions are internally provided with slide grooves, the clamping mechanism comprises a clamping mechanism sliding seat, the clamping mechanism sliding seat is slidably arranged in the slide grooves, one side of the clamping mechanism sliding seat is connected with a connecting seat, one side of the connecting seat is connected with a clamping arm, the clamping arm is connected with the connecting seat through a rotating shaft, one side of the clamping arm is slidably provided with a clamping block, one side of the clamping block is connected with a clamping plate, the laser cutting mechanism is arranged above the cutting machine main body, the utility model effectively improves the working efficiency of the laser cutting machine, and ensures the cutting precision, the labor intensity of operators is reduced, and the device has simple structure and simple and convenient operation.

In the prior art, the clamping device can clamp and fix the left and right positions of the workpiece and can position and clamp workpieces with different left and right length specifications, but the clamping device does not consider the problem that the workpiece is offset from front to back, so that the position of the workpiece to be cut is easily staggered from front to back when in butt joint with the position of the execution end of the laser cutting mechanism; secondly, when the clamping mechanism in the prior art looses the clamping of the workpiece, the left clamping arm is easy to collide with the workpiece on the conveying belt and on the left side of the lifting mechanism when rotating, so that the conveying and clamping of the subsequent workpiece are affected, and meanwhile, the prior art does not limit the workpiece moving above the lifting mechanism so as to prevent the workpiece from being conveyed and removed without being cut; moreover, this prior art does not carry out automatic recovery to the waste material that the work piece cutting produced, needs artifical supplementary clearance regularly.

Disclosure of Invention

In order to realize carrying out laser cutting to the work piece of different specifications to the location centre gripping to different specifications work piece to ensure the cutting position of work piece and the accurate counterpoint of cutting execution end position of laser cutting machine body, this application provides a full-automatic laser cutting machine.

In a first aspect, the application provides a full-automatic laser cutting machine adopts following technical scheme:

the utility model provides a full-automatic laser cutting machine, includes L type guide rail, L type guide rail quantity is two and front and back symmetric distribution, two L type guide rail is installed on a plurality of U type support frames of controlling evenly distributed, evenly be provided with a plurality of drive rollers on the horizontal segment of L type guide rail, two be provided with centre gripping positioner between the L type guide rail, centre gripping positioner top is provided with the laser cutting machine body of installing at the elevating gear lower extreme, and elevating gear fixes on L type mount.

Through adopting above-mentioned technical scheme, in actually carrying out the laser cutting process to the work piece, can form the delivery track of carrying the work piece through two L type guide rails, make the drive roller rotate on L type guide rail through current drive arrangement (for example realize the pivoted function of drive roller under the drive of motor and the cooperation of driving chain and sprocket) to treat the work piece of cutting on the L type guide rail and carry out the transportation, treat that the work piece moves to the centre gripping positioner top the centre gripping positioner with this work piece centre gripping fixed, make the laser cutting machine body can carry out the laser cutting to the work piece on the centre gripping positioner through elevating gear (for example current elevating system, pneumatic cylinder etc.).

The clamping and positioning device comprises a clamping and positioning platform, two sinking blocks which are symmetrically distributed around and are isosceles trapezoids are placed at the upper end of the clamping and positioning platform, a clamping platform is arranged right above the sinking blocks, two clamping chutes which are symmetrically distributed left and right are formed in the clamping platform, clamping strips are arranged in the clamping chutes in a sliding mode, and the lower ends of the clamping strips are matched with isosceles inclined walls of the sinking blocks.

The sinking piece left and right sides all is provided with the guide block, the guide block sets up on centre gripping location platform outer wall, the jacking pneumatic cylinder is installed to the one end that the sinking piece was kept away from to the guide block, the upper end of jacking pneumatic cylinder is connected with centre gripping platform.

Through adopting above-mentioned technical scheme, the jacking pneumatic cylinder promotes the centre gripping platform and shifts up to make the centre gripping platform can support the work piece and shift up, and then this work piece breaks away from L type guide rail, the isosceles slope wall cooperation of centre gripping strip lower extreme and the piece that sinks makes the centre gripping strip move towards this work piece simultaneously, and then can fix a position the centre gripping to the work piece, it is corresponding to ensure the cutting execution position of this work piece and laser cutting machine body, the centre gripping strip of this case can fix a position the centre gripping to the position about different length work pieces simultaneously.

And two limiting assemblies distributed left and right are arranged on the L-shaped guide rail and are positioned right above the clamping and positioning platform.

Through adopting above-mentioned technical scheme, carry out the front and back position to the work piece of centre gripping on clamping platform through spacing subassembly and prescribe a limit to, the dislocation and lead to the problem that work piece cutting position has a deviation around the cutting execution end of work piece and laser cutting machine body appear when avoiding cutting.

Preferably, the side wall of the clamping sliding groove is provided with a limiting guide strip, the clamping strip is provided with a limiting hole in sliding fit with the limiting guide strip, and a first spring is connected between the clamping strip and the clamping sliding groove.

Two connecting strips that distribute around the centre gripping strip lower extreme is installed, set up on the isosceles inclined wall of the piece that sinks with connecting strip sliding fit's cooperation groove, and cooperation groove and the interior cavity intercommunication of seting up of piece that sinks, rotate between two connecting strips that are located the centre gripping strip and install the guide roll, and the guide roll is located the cavity.

By adopting the technical scheme, in actual operation, when the clamping platform moves upwards, the clamping strip can move upwards synchronously through the limiting guide strip, the guide roller at the lower end of the clamping strip is matched with the top of the cavity of the sinking block and matched with the self gravity of the sinking block, so that the guide roller moves upwards along the isosceles inclined wall of the sinking block, the clamping strip moves towards the center of the clamping platform, the workpiece is positioned and clamped, and if the workpiece is not moved upwards to a specified height after the clamping strip finishes clamping the workpiece, the clamping strip drives the sinking block to move upwards through the guide roller; this case sets up the guide roll and can reduce the frictional force between guide roll and the cavity inner wall for the rolling more smooth and easy of guide roll.

Preferably, the lower end of the clamping platform is connected with two square correction strips distributed left and right, and the lower ends of the square correction strips sequentially penetrate through the sinking block and the clamping and positioning platform.

By adopting the technical scheme, the sinking block can smoothly drive the clamping platform to synchronously move back and forth.

Preferably, the limiting assembly comprises a limiting fixing frame fixed on the L-shaped guide rail, the front side and the rear side of the limiting fixing frame are distributed in a distributed mode, a limiting guide plate is arranged on one side, opposite to the limiting fixing frame, of the limiting fixing frame, the limiting guide plate is arranged on the limiting fixing frame in a sliding mode through a guide sliding rod, the limiting guide plate is installed on a distance adjusting bolt in a rotating mode towards one end of the limiting fixing frame, and the distance adjusting bolt is connected to the limiting fixing frame in a threaded mode.

Through adopting above-mentioned technical scheme, adjust spacing deflector to the interval of spacing mount through rotating roll adjustment bolt to position correction is spacing around carrying out to the work piece of centre gripping on clamping platform, ensures that the cutting position of work piece and the cutting execution end position of laser cutting machine body are counterpointed accurately.

The guide slide bar is provided with a first scale; the lower end of the limiting guide plate is provided with a guide plate inclining towards one side of the limiting fixing frame, and one end, away from the limiting fixing frame, of the limiting guide plate is a vertical smooth surface.

Through adopting above-mentioned technical scheme, can ensure through first scale that all spacing deflectors in this case keep the same to the distance of the spacing mount that corresponds, the guide board can lead spacingly to the work piece front and back position that is shifting up simultaneously, and secondly vertical smooth surface can reduce the frictional force between work piece and the spacing deflector.

Preferably, the guide block is slidably arranged on the outer side wall of the clamping and positioning platform, the left side wall and the right side wall of the clamping and positioning platform are both provided with a strip-shaped guide groove, and the guide block is provided with a strip-shaped block which is in sliding fit with the strip-shaped guide groove; the left side and the right side of the clamping and positioning platform are provided with first double-shaft screw rods, and the guide blocks are in threaded connection with the first double-shaft screw rods.

The guide block has been seted up towards one side of sinking piece to the bar and has been erect the groove, be provided with on the sinking piece lateral wall and erect groove sliding fit's spacing with the bar.

By adopting the technical scheme, the first double-shaft screw rod can drive the two guide blocks on the first double-shaft screw rod to move along the linear direction of the strip-shaped guide groove, so that the guide blocks drive the sinking blocks to synchronously move through the matching of the strip-shaped vertical groove and the limiting strips, and further the movement adjusting function of the clamping platform is realized, and the workpieces with different specifications can be positioned and clamped.

Preferably, the L-shaped guide rail is arranged on the U-shaped support frame in a sliding mode, the second double-shaft screw rod placed horizontally is installed on the side wall of the U-shaped support frame in a rotating mode, a first chain wheel is installed at the front end of the second double-shaft screw rod, and the first chain wheel is connected through a first chain.

First biax screw rod front end with be located two of centre gripping location platform left and right sides second biax screw rod front end all installs the second sprocket, adjacent two be connected through the second chain between the second sprocket on the first biax screw rod and the second sprocket on the second biax screw rod.

And a second scale is arranged on the horizontal section of the U-shaped support frame.

By adopting the technical scheme, all the second double-shaft screws synchronously rotate in the same direction by matching the existing motor with the first chain wheel and the first chain, so that the distance between the two L-shaped guide rails is adjusted, and the workpieces with different specifications can be conveniently conveyed in a moving mode; meanwhile, the first double-shaft screw rod synchronously rotates through the matching of the second chain wheel and the second chain, so that the position of the clamping platform is adjusted through the guide block; the second scale can accurately control the distance between the two L-shaped guide rails and the adjustment of the distance between the two clamping platforms.

Preferably, the clamping and positioning platform is provided with a guide hole in sliding fit with the square correction strip in the front and back direction.

By adopting the technical scheme, the square correcting strip can be ensured to smoothly move back and forth on the clamping and positioning platform along with the sinking block.

Preferably, the right end of one side opposite to the sinking block is provided with a lifting frame in a sliding mode, a second spring is connected between the lower end of the lifting frame and the sinking block, the upper end of the lifting frame is provided with a limiting blocking strip in a sliding mode, a third spring is connected between the bottom in the lifting frame at the lower end of the limiting blocking strip, and the limiting blocking strip is located between the two clamping strips.

The left end of the clamping platform is connected with a vertically arranged limiting clamping strip.

By adopting the technical scheme, the workpiece can be firstly contacted with the limiting barrier strip and pushes the limiting barrier strip to move rightwards, so that the second spring is in a stretching state until the workpiece is contacted with the clamping strip at the right end of the clamping platform, and meanwhile, the jacking hydraulic cylinder pushes the clamping platform to move upwards to enable the workpiece to move upwards to be separated from the L-shaped guide rail and enable the clamping strip to position and clamp the workpiece, so that the automatic positioning and clamping function of the workpiece on the L-shaped guide rail is realized; when the workpiece moves upwards and is separated from contact with the limiting barrier strip, the workpiece resets under the pulling of the second spring, and when the workpiece moves downwards after laser cutting is completed, the workpiece pushes the limiting barrier strip to move downwards, so that the third spring is in a compressed state until the limiting barrier strip moves upwards and resets after the workpiece is removed, and the limiting barrier strip can limit subsequent workpieces; meanwhile, when the clamping platform moves upwards, the limiting clamping strips can be driven to move upwards synchronously, so that the limiting clamping strips can stop the workpiece from moving towards the clamping platform continuously.

Preferably, two be connected with the biax telescopic link between the left end of centre gripping platform, the canned paragraph at biax telescopic link middle part rotates and installs the stock guide, stock guide lower extreme and centre gripping location platform up end sliding fit, the side all slides around the terminal surface under the stock guide is provided with the cooperation board, the stock guide lower extreme is provided with the cross-section and is the bellied bar arch of arc, the cooperation board up end seted up with the protruding sliding fit's of bar depressed groove, cooperation board upper end and towards the one end of centre gripping platform slide through the connecting rod and set up in the arc wall of seting up on the centre gripping platform.

The middle part of the right side of the clamping and positioning platform is provided with a material guide hole, and a collecting frame used for containing cutting waste materials is arranged below the material guide hole.

Through adopting above-mentioned technical scheme, the centre gripping platform shifts up can drive stock guide left end and cooperation board and shift up in step for stock guide and cooperation board inclination grow, the stock guide that produces when making things convenient for the work piece cutting moves to the stock guide hole through the stock guide and the cooperation board of slope after falling, and collect in collecting the frame.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the laser cutting machine can move, convey, position and clamp workpieces of different specifications so that the laser cutting machine body can cut the workpieces by laser, the front, back, left and right positions of the workpieces are limited by the clamping strips and the limiting guide plates, the positioning function of the workpieces is realized, and the workpieces are clamped and fixed so that the cutting position of the workpieces and the cutting execution end position of the laser cutting machine body are accurately aligned.

2. The limiting blocking strip can limit the workpiece to ensure that the clamping strip can smoothly position and clamp the workpiece, the limiting assembly is matched to enable the cutting position of the workpiece to be accurately aligned with the cutting execution end position of the laser cutting machine body, and meanwhile the limiting clamping strip can block the subsequent workpiece on the L-shaped guide rail from continuously moving towards the clamping platform.

3. According to the automatic blanking and collecting device, waste materials generated during workpiece cutting can be conveyed and guided to smoothly enter the collecting frame through the material guide holes by matching the material guide plate and the matching plate, so that the automatic blanking and collecting function of the waste materials is realized.

Drawings

Fig. 1 is a schematic view of a first structure of the present invention.

Fig. 2 is a partially enlarged view of the invention at a in fig. 1.

Fig. 3 is a partially enlarged view of the invention at B in fig. 1.

Fig. 4 is a second structural schematic of the present invention.

Fig. 5 is a partial enlarged view at C of fig. 4 according to the present invention.

FIG. 6 is a schematic structural diagram of the clamping and positioning device of the present invention.

Fig. 7 is a top view of the clamp positioning device of the present invention.

Fig. 8 is a cross-sectional view taken at X-X of fig. 7 in accordance with the present invention.

Fig. 9 is a cross-sectional view taken at Y-Y of fig. 7 in accordance with the present invention.

Description of reference numerals: 100. a workpiece; 1. an L-shaped guide rail; 11. a drive roller; 12. a limiting component; 121. a limit fixing frame; 122. a limiting guide plate; 1221. a guide plate; 123. a guide slide bar; 124. adjusting the distance of the bolt; 2. a U-shaped support frame; 21. a second biaxial screw; 22. a first sprocket; 23. a first chain; 24. a second sprocket; 25. a second chain; 3. clamping and positioning the device; 31. clamping and positioning the platform; 311. a strip-shaped guide groove; 312. a first biaxial screw; 313. a guide hole; 32. sinking the block; 321. a mating groove; 322. a cavity; 323. a limiting strip; 33. a clamping platform; 331. a clamping chute; 3311. limiting the guide strips; 3312. a first spring; 332. a clamping bar; 3321. a connecting strip; 3322. a guide roller; 333. square correcting strips; 334. limiting clamping strips; 335. an arc-shaped slot; 34. a guide block; 341. a bar-shaped block; 342. a strip-shaped vertical slot; 35. a jacking hydraulic cylinder; 36. a lifting frame; 361. a second spring; 362. limiting barrier strips; 37. a double-shaft telescopic rod; 371. a stock guide; 3711. strip-shaped bulges; 372. a mating plate; 3721. a recessed groove; 38. a material guide hole; 39. a collection frame; 4. a lifting device; 5. a laser cutting machine body; 6. an L-shaped fixing frame.

Detailed Description

The present application is described in further detail below with reference to figures 1-9.

The first embodiment is as follows:

referring to fig. 1 and 4, for the full-automatic laser cutting machine that this embodiment discloses, including L type guide rail 1, L type guide rail 1 quantity is two and front and back symmetric distribution, two L type guide rails 1 are installed on a plurality of U type support frames 2 of controlling evenly distributed, evenly be provided with a plurality of drive rollers 11 on the horizontal segment of L type guide rail 1, be provided with centre gripping positioner 3 between two L type guide rails 1, centre gripping positioner 3 top is provided with the laser cutting machine body 5 of installing at elevating gear 4 lower extreme, and elevating gear 4 fixes on L type mount 6.

In the actual laser cutting process of the workpiece 100, a conveying track for conveying the workpiece 100 is formed by two L-shaped guide rails 1, the driving roller 11 is rotated on the L-shaped guide rail 1 by an existing driving device (for example, the function of rotating the driving roller 11 is realized by the driving of a motor and the cooperation of a transmission chain and a chain wheel) so as to convey the workpiece 100 to be cut on the L-shaped guide rail 1, the clamping and positioning device 3 clamps and fixes the workpiece 100 when the workpiece 100 moves above the clamping and positioning device 3, and then the laser cutting machine body 5 is enabled to perform laser cutting on the workpiece 100 on the clamping and positioning device 3 by an elevating device 4 (for example, an existing elevating mechanism, a hydraulic cylinder, and the like).

Referring to fig. 1, 2, 4, 6, 8 and 9, in order to ensure that the workpiece 100 can be separated from the L-shaped guide rail 1 when the clamping and positioning device 3 clamps the workpiece 100, and at the same time, the clamping and positioning device 3 can position and clamp the workpiece 100, the clamping and positioning device 3 comprises a clamping and positioning platform 31, two isosceles trapezoid sinking blocks 32 which are symmetrically distributed front and back are placed at the upper end of the clamping and positioning platform 31, a clamping platform 33 is arranged right above the sinking blocks 32, two clamping sliding grooves 331 which are symmetrically distributed left and right are formed in the clamping platform 33, a clamping strip 332 is slidably arranged in the clamping sliding groove 331, and the lower end of the clamping strip 332 is matched with an isosceles inclined wall of the sinking block 32; the sinking block 32 left and right sides all is provided with guide block 34, and guide block 34 sets up on centre gripping location platform 31 outer wall, and jacking pneumatic cylinder 35 is installed to the one end that sinking block 32 was kept away from to guide block 34, and jacking pneumatic cylinder 35's upper end is connected with centre gripping platform 33.

Through adopting the above technical scheme, jacking pneumatic cylinder 35 promotes centre gripping platform 33 and moves up to make centre gripping platform 33 can bear work piece 100 and move up, and then this work piece 100 breaks away from L type guide rail 1, the isosceles slope wall cooperation of centre gripping strip 332 lower extreme and the piece 32 that sinks makes centre gripping strip 332 move towards this work piece 100 simultaneously, and then can fix a position the centre gripping to work piece 100, it is corresponding to ensure that the cutting position of this work piece 100 and the cutting execution position of laser cutting machine body 5, the centre gripping strip 332 of this case can fix a position the centre gripping to the left and right sides position of different length work pieces 100 simultaneously.

Referring to fig. 2, 5, 7 and 9, in order to ensure that the clamping platform 33 can be driven to move upward to drive the clamping strip 332 thereon to move toward the center of the clamping platform 33 so as to position and clamp the left and right positions of the workpiece 100, and simultaneously ensure that the clamping strip 332 can also move and reset when the clamping platform 33 moves downward and resets, a limit guide strip 3311 is arranged on the side wall of the clamping chute 331, a limit hole which is in sliding fit with the limit guide strip 3311 is formed in the clamping strip 332, and a first spring 3312 is connected between the clamping strip 332 and the clamping chute 331; two connecting strips 3321 that front and back symmetric distribution are installed to centre gripping strip 332 lower extreme, sink and offer on the isosceles inclined wall of piece 32 with connecting strip 3321 sliding fit's cooperation groove 321, and cooperation groove 321 and the interior cavity 322 that has seted up of piece 32 intercommunication that sinks, rotate between two connecting strips 3321 that lie in centre gripping strip 332 and install guide roll 3322, and guide roll 3322 is located cavity 322.

In actual operation, when the clamping platform 33 moves upwards, the clamping strip 332 can move upwards synchronously through the limiting guide strip 3311, the guide roller 3322 at the lower end of the clamping strip 332 is matched with the top of the cavity of the sinking block 32 and is matched with the self gravity of the sinking block 32, so that the guide roller 3322 moves upwards along the isosceles inclined wall of the sinking block 32, and further the clamping strip 332 moves towards the center of the clamping platform 33 so as to position and clamp the workpiece 100, and if the workpiece 100 does not move upwards to a designated height after the clamping strip 332 finishes clamping the workpiece 100, the clamping strip 332 drives the sinking block 32 to move upwards through the guide roller 3322; the guide roller 3322 provided in this case can reduce the friction between the guide roller 3322 and the inner wall of the cavity 322, so that the guide roller 3322 rolls more smoothly.

Referring to fig. 1 and 4, further, in order to ensure the limitation of the front-back position of the workpiece 100, in this case, two limiting assemblies 12 distributed left and right are arranged on the L-shaped guide rail 1, and the limiting assemblies 12 are located right above the clamping and positioning platform 31, and the front-back position of the workpiece 100 clamped on the clamping platform 33 is limited by the limiting assemblies 12, so that the problem that the cutting position of the workpiece 100 deviates due to the front-back dislocation of the cutting execution end of the workpiece 100 and the laser cutting machine body 5 during cutting is avoided.

Referring to fig. 1 and 2, specifically, the limiting assembly 12 includes a limiting fixing frame 121 fixed on the L-shaped guide rail 1, two limiting fixing frames 121 distributed front and back are provided with a limiting guide plate 122 on opposite sides, the limiting guide plate 122 is slidably disposed on the limiting fixing frame 121 through a guide sliding rod 123, the limiting guide plate 122 is rotatably mounted with a distance adjusting bolt 124 towards one end of the limiting fixing frame 121, and the distance adjusting bolt 124 is threadedly connected to the limiting fixing frame 121.

By adopting the technical scheme, the distance from the limiting guide plate 122 to the limiting fixing frame 121 is adjusted by rotating the distance adjusting bolt 124, so that the workpiece 100 clamped on the clamping platform 33 is corrected and limited in front and back positions, and the accurate alignment of the cutting position of the workpiece 100 and the cutting execution end position of the laser cutting machine body 5 is ensured.

Referring to fig. 1 and 2, further, a first scale (not shown) is disposed on the guide sliding rod 123, so as to ensure that the distances from all the limit guide plates 122 to the corresponding limit fixing frames 121 in this case are kept the same; the lower end of the limiting guide plate 122 is provided with a guide plate 1221 inclined towards one side of the limiting fixing frame 121, the front and rear positions of the workpiece 100 moving upwards can be guided and limited, one end, away from the limiting fixing frame 121, of the limiting guide plate 122 is a vertical smooth surface, and friction force between the workpiece 100 and the limiting guide plate 122 is reduced.

Example two:

referring to fig. 9, on the basis of the first embodiment, in order to position and clamp workpieces of different specifications after the present invention is implemented, the guide block 34 is slidably disposed on the outer sidewall of the clamping and positioning platform 31, the left and right sidewalls of the clamping and positioning platform 31 are both provided with a strip-shaped guide groove 311, and the guide block 34 is provided with a strip-shaped block 341 slidably engaged with the strip-shaped guide groove 311; the left and right sides of the clamping and positioning platform 31 are provided with first double-shaft screws 312, and the guide blocks 34 are in threaded connection with the first double-shaft screws 312.

A strip-shaped vertical groove 342 is formed in one side, facing the sinking block 32, of the guide block 34, and a limiting strip 323 in sliding fit with the strip-shaped vertical groove 342 is arranged on the side wall of the sinking block 32.

In practical use, the first biaxial screw 312 can drive the two guide blocks 34 thereon to move along the linear direction of the strip-shaped guide groove 311, so that the guide blocks 34 drive the sinking block 32 to move synchronously through the matching of the strip-shaped vertical groove 342 and the limiting strip 323, and further, the movement adjusting function of the clamping platform 33 is realized, so as to ensure that the workpiece 100 with different specifications can be positioned and clamped.

Referring to fig. 6, 8 and 9, in order to ensure that the sinking block 32 can smoothly drive the clamping platform 33 to synchronously move back and forth, two square correction strips 333 which are distributed left and right are connected to the lower end of the clamping platform 33, and the lower ends of the square correction strips 333 sequentially penetrate through the sinking block 32 and the clamping and positioning platform 31; the clamping and positioning platform 31 is provided with a guide hole 313 which is in sliding fit with the square correcting strip 333 back and forth, so that the square correcting strip 333 can smoothly move back and forth on the clamping and positioning platform 31 along with the sinking block 32.

Referring to fig. 1, 3 and 4, simultaneously, in order to cooperate the location centre gripping and the laser cutting of different specification work pieces 100, L type guide rail 1 slides and sets up on U type support frame 2, rotates on the U type support frame 2 lateral wall and installs the second biax screw rod 21 that the level was placed, and first sprocket 22 is installed to the front end of second biax screw rod 21, and a plurality of first sprockets 22 are connected through first chain 23.

The front ends of the first biaxial screw 312 and the two second biaxial screw 21 located at the left and right sides of the clamping and positioning platform 31 are respectively provided with a second chain wheel 24, and the second chain wheels 24 on the two adjacent first biaxial screw 312 and the second chain wheels 24 on the second biaxial screw 21 are connected through a second chain 25.

In actual use, all the second double-shaft screws 21 synchronously rotate in the same direction by the aid of the existing motor and the cooperation of the first chain wheel 22 and the first chain 23, so that the distance between the two L-shaped guide rails 1 is adjusted to match moving and conveying of workpieces 100 of different specifications; and simultaneously, the first biaxial screw 312 is rotated synchronously by the cooperation of the second sprocket 24 and the second chain 25, so that the position of the clamping platform 33 is adjusted by the guide block 34.

Referring to fig. 1 and 4, further, a second scale (not shown in the figure) is arranged on the horizontal section of the U-shaped support frame 2, and can accurately control the adjustment of the distance between the two L-shaped guide rails 1 and the distance between the two clamping platforms 33.

Referring to fig. 5, in order to ensure that the clamping platform 33 can smoothly lift the workpiece 100 and perform positioning and clamping when the workpiece 100 is moved and conveyed on the L-shaped guide rail 1, the lifting frame 36 is slidably disposed at the right end of the opposite side of the sinking block 32, a second spring 361 is connected between the lower end of the lifting frame 36 and the sinking block 32, a limiting barrier 362 is slidably disposed at the upper end of the lifting frame 36, a third spring (not shown) is connected between the inner bottoms of the lifting frame 36 at the lower end of the limiting barrier 362, and the limiting barrier 362 is located between the two clamping strips 332.

In the actual use process, the workpiece 100 is firstly contacted with the limit barrier 362 and pushes the limit barrier 362 to move rightwards, so that the second spring 361 is in a stretching state until the workpiece 100 is contacted with the clamping strip 332 at the right end of the clamping platform 33, and meanwhile, the jacking hydraulic cylinder 35 pushes the clamping platform 33 to move upwards, so that the workpiece 100 moves upwards to be separated from the L-shaped guide rail 1, and the clamping strip 332 carries out positioning clamping on the workpiece 100, thereby realizing the automatic positioning and clamping function of the workpiece 100 on the L-shaped guide rail 1; when the workpiece 100 moves up and then is out of contact with the limit barrier 362, the workpiece 100 is reset under the pulling of the second spring 361, and when the workpiece 100 moves down after completing the laser cutting, the workpiece 100 pushes the limit barrier 362 to move down, so that the third spring is in a compressed state until the limit barrier 362 moves up and resets after the workpiece 100 is removed, so as to ensure that the limit barrier 362 can limit the subsequent workpiece 100.

Referring to fig. 2, in order to prevent the subsequent workpiece 100 on the L-shaped guide rail 1 from continuously moving toward the clamping platform 33 when the clamping platform 33 clamps and positions the workpiece 100, a vertically disposed limiting clamping strip 334 is connected to the left end of the clamping platform 33, and when the clamping platform 33 moves upward, the limiting clamping strip 334 is driven to synchronously move upward, so that the limiting clamping strip 334 can block the workpiece 100 from continuously moving toward the clamping platform 33.

Referring to fig. 2, fig. 5, fig. 6, fig. 7 and fig. 8, work piece 100 has the waste material to produce in cutting process, in order to realize the automatic blanking and the collection of waste material, simultaneously in order to cooperate the interval regulation between two clamping platform 33, be connected with biax telescopic link 37 between the left end of two clamping platform 33, the fixed section at biax telescopic link 37 middle part rotates and installs stock guide 371, stock guide 371 lower extreme and centre gripping location platform 31 up end sliding fit, stock guide 371 lower extreme front and back side all slides and is provided with the cooperation board 372, the stock guide 371 lower extreme is provided with the cross-section and is the bellied bar arch 3711 of arc, cooperation board 372 up end sets up with the bellied 3711 sliding fit's of bar sunken groove 3721, cooperation board 372 upper end and the one end towards clamping platform 33 slide through the connecting rod and set up in the arc 335 of seting on clamping platform 33.

A material guiding hole 38 is formed in the middle of the right side of the clamping and positioning platform 31, and a collecting frame 39 for containing cutting waste is arranged below the material guiding hole 38.

Through adopting above-mentioned technical scheme, the centre gripping platform 33 moves up can drive stock guide 371 left end and cooperation board 372 and move up in step for stock guide 371 and cooperation board 372 inclination grow, and the waste material that produces when making things convenient for work piece 100 to cut falls behind and moves the waste material guide to stock guide hole 38 through stock guide 371 and the cooperation board 372 of slope, and collects in collecting frame 39.

Therefore, based on the two embodiments, the distance between the two L-shaped guide rails 1 is adjusted according to the size of the workpiece 100, so as to ensure that the L-shaped guide rails 1 of the present invention can move and convey workpieces 100 with different specifications; meanwhile, the distance between the two clamping platforms 33 is adjusted, on one hand, the clamping platforms 33 are ensured to be positioned between the two L-shaped guide rails 1, on the other hand, the clamping platforms 33 are ensured to clamp the edge position of the workpiece 100, and the influence of the clamping platforms 33 on the cutting position of the workpiece 100 is avoided as much as possible; secondly, the limiting barrier strip 362 can limit the workpiece 100 to ensure that the clamping strip 332 can smoothly position and clamp the workpiece 100, and the limiting assembly 12 is matched to accurately align the cutting position of the workpiece with the cutting execution end position of the laser cutting machine body 5, and meanwhile, the limiting clamping strip 334 can prevent the subsequent workpiece 100 on the L-shaped guide rail 1 from continuously moving towards the clamping platform 33; then, the scraps generated when the workpiece 100 is cut can be smoothly transferred and guided to the collection frame 39 through the guide holes 38 by the engagement of the guide plate 371 and the engagement plate 372.

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 full-automatic laser cutting machine, includes L type guide rail (1), L type guide rail (1) quantity is two and front and back symmetric distribution, two install on U type support frame (2) of evenly distributed about a plurality of L type guide rail (1), evenly be provided with a plurality of drive rollers (11), two on the horizontal segment of L type guide rail (1) be provided with between L type guide rail (1) centre gripping positioner (3), centre gripping positioner (3) top is provided with laser cutting machine body (5) of installing at elevating gear (4) lower extreme, and elevating gear (4) fix on L type mount (6), its characterized in that:

the clamping and positioning device (3) comprises a clamping and positioning platform (31), two isosceles trapezoid sinking blocks (32) which are symmetrically distributed in the front and back are placed at the upper end of the clamping and positioning platform (31), a clamping platform (33) is arranged right above the sinking blocks (32), two clamping chutes (331) which are symmetrically distributed in the left and right are formed in the clamping platform (33), clamping strips (332) are arranged in the clamping chutes (331) in a sliding manner, and the lower ends of the clamping strips (332) are matched with the isosceles inclined walls of the sinking blocks (32);

the left side and the right side of the sinking block (32) are respectively provided with a guide block (34), the guide blocks (34) are arranged on the outer wall of the clamping and positioning platform (31), one end, far away from the sinking block (32), of each guide block (34) is provided with a jacking hydraulic cylinder (35), and the upper end of each jacking hydraulic cylinder (35) is connected with the clamping platform (33);

two limiting assemblies (12) distributed left and right are arranged on the L-shaped guide rail (1), and the limiting assemblies (12) are located right above the clamping and positioning platform (31).

2. The full-automatic laser cutting machine according to claim 1, characterized in that: a limiting guide strip (3311) is arranged on the side wall of the clamping sliding groove (331), a limiting hole in sliding fit with the limiting guide strip (3311) is formed in the clamping strip (332), and a first spring (3312) is connected between the clamping strip (332) and the clamping sliding groove (331);

centre gripping strip (332) lower extreme is installed two connecting strip (3321) of front and back symmetric distribution, set up on the isosceles inclined wall with connecting strip (3321) sliding fit's cooperation groove (321) down, and cooperation groove (321) and the interior cavity (322) intercommunication of having seted up of down piece (32), rotate between two connecting strip (3321) that are located centre gripping strip (332) and install guide roll (3322), and guide roll (3322) are located cavity (322).

3. The full-automatic laser cutting machine according to claim 1, characterized in that: the lower end of the clamping platform (33) is connected with two square correcting strips (333) which are distributed left and right, and the lower ends of the square correcting strips (333) sequentially penetrate through the sinking block (32) and the clamping and positioning platform (31).

4. The full-automatic laser cutting machine according to claim 1, characterized in that: the limiting assembly (12) comprises limiting fixing frames (121) fixed on the L-shaped guide rail (1), limiting guide plates (122) are arranged on opposite sides of the two limiting fixing frames (121) which are distributed in the front and back direction, the limiting guide plates (122) are arranged on the limiting fixing frames (121) in a sliding mode through guide sliding rods (123), distance adjusting bolts (124) are rotatably installed at one ends, facing the limiting fixing frames (121), of the limiting guide plates (122), and the distance adjusting bolts (124) are connected to the limiting fixing frames (121) in a threaded mode;

a first scale is arranged on the guide slide rod (123); the lower end of the limiting guide plate (122) is provided with a guide plate (1221) which inclines towards one side of the limiting fixing frame (121), and one end, away from the limiting fixing frame (121), of the limiting guide plate (122) is a vertical smooth surface.

5. The full-automatic laser cutting machine according to claim 1, characterized in that: the guide block (34) is arranged on the outer side wall of the clamping and positioning platform (31) in a sliding mode, the left side wall and the right side wall of the clamping and positioning platform (31) are both provided with strip-shaped guide grooves (311), and the guide block (34) is provided with strip-shaped blocks (341) in sliding fit with the strip-shaped guide grooves (311); the left side and the right side of the clamping and positioning platform (31) are respectively provided with a first double-shaft screw rod (312), and the guide block (34) is in threaded connection with the first double-shaft screw rods (312);

the guide block (34) has seted up the bar towards one side of sinking piece (32) and has erect groove (342), be provided with on sinking piece (32) lateral wall with the bar erect groove (342) sliding fit's spacing (323).

6. The full-automatic laser cutting machine according to claim 5, characterized in that: the L-shaped guide rail (1) is arranged on the U-shaped support frame (2) in a sliding mode, a second double-shaft screw (21) horizontally placed is rotatably installed on the side wall of the U-shaped support frame (2), a first chain wheel (22) is installed at the front end of the second double-shaft screw (21), and the first chain wheels (22) are connected through a first chain (23);

second chain wheels (24) are mounted at the front ends of the first double-shaft screws (312) and the front ends of the two second double-shaft screws (21) positioned at the left side and the right side of the clamping and positioning platform (31), and the second chain wheels (24) on the two adjacent first double-shaft screws (312) are connected with the second chain wheels (24) on the second double-shaft screws (21) through second chains (25);

and a second scale is arranged on the horizontal section of the U-shaped support frame (2).

7. The full-automatic laser cutting machine according to claim 3, characterized in that: and the clamping and positioning platform (31) is provided with a guide hole (313) which is in sliding fit with the square correcting strip (333) in the front-back direction.

8. The full-automatic laser cutting machine according to claim 1, characterized in that: a lifting frame (36) is slidably arranged at the right end of one side, opposite to the sinking block (32), of the sinking block (32), a second spring (361) is connected between the lower end of the lifting frame (36) and the sinking block (32), a limiting barrier strip (362) is slidably arranged at the upper end of the lifting frame (36), a third spring is connected between the inner bottom of the lifting frame (36) at the lower end of the limiting barrier strip (362), and the limiting barrier strip (362) is located between the two clamping strips (332);

the left end of the clamping platform (33) is connected with a vertically arranged limiting clamping strip (334).

9. The full-automatic laser cutting machine according to claim 1, characterized in that: a double-shaft telescopic rod (37) is connected between the left ends of the two clamping platforms (33), a guide plate (371) is rotatably mounted at a fixed section in the middle of the double-shaft telescopic rod (37), the lower end of the guide plate (371) is in sliding fit with the upper end face of the clamping and positioning platform (31), a matching plate (372) is arranged on the front side and the rear side of the lower end face of the guide plate (371) in a sliding manner, a strip-shaped protrusion (3711) with an arc-shaped protrusion cross section is arranged at the lower end of the guide plate (371), a recessed groove (3721) in sliding fit with the strip-shaped protrusion (3711) is formed in the upper end of the matching plate (372), and one end of the matching plate (372) facing the clamping platform (33) is arranged in an arc-shaped groove (335) formed in the clamping platform (33) in a sliding manner through a connecting rod;

the middle part of the right side of the clamping and positioning platform (31) is provided with a material guide hole (38), and a collecting frame (39) used for containing cutting waste is arranged below the material guide hole (38).