CN215145860U - Laser cutting machine work platform frame and laser cutting machine - Google Patents

Abstract

The utility model discloses a laser cutting machine working platform frame and a laser cutting machine; the working platform frame comprises a first cross beam, a second cross beam, a reinforcing beam and a guide wheel assembly; the guide wheel assembly comprises a plurality of climbing wheels for climbing, a plurality of supporting wheels for supporting and a plurality of auxiliary wheels for exchanging; the climbing wheels and the supporting wheels are respectively arranged on the side wall of the first cross beam and are in sliding connection with a climbing guide rail on a machine tool; the auxiliary wheel is arranged at the bottom of the first cross beam and is in sliding connection with a guide rail on the upper surface of the translation platform; through the arrangement of the climbing wheels, the supporting wheels and the auxiliary wheels, the climbing wheels are respectively matched with the climbing guide rail, the translation guide rail and the guide rail, so that the exchange and the sliding of the working platform frame are more stable; through setting up hollow work platform frame, make the rack module setting between the stiffening beam, be favorable to reducing the volume of work platform frame, reduce the area of contact of work platform frame and laser.

Description

Laser cutting machine work platform frame and laser cutting machine

Technical Field

The utility model relates to a laser cutting machine's technical field, in particular to laser cutting machine work platform frame and laser cutting machine.

Background

The laser cutting is to emit laser through a laser device and focus the 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 melted or gasified metal. Under the action of the front and back driving mechanism, the left and right driving mechanism and the up and down driving mechanism, the laser beam moves relative to the workpiece, and finally the workpiece forms a cutting seam, so that the purpose of cutting is achieved. The laser cutting has the characteristics of high precision, rapid cutting, no limitation to cutting patterns, smooth cut and the like, thereby gradually replacing the traditional metal cutting equipment.

The existing platform frame is generally provided with a group of climbing wheels at the front end and the rear end respectively, and the exchange with a translation platform is realized by utilizing the sliding of the two groups of climbing wheels on a guide rail of a machine tool, but the stability during the movement and the exchange is poor.

It is seen that improvements and enhancements to the prior art are needed.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing prior art's weak point, an object of the utility model is to provide a laser cutting machine work platform frame and laser cutting machine, the relatively poor problem of stability when aiming at solving current platform frame exchange.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a laser cutter work platform frame comprising: the reinforcing beam is arranged on the first cross beam and the second cross beam; the first cross beams are symmetrically arranged in two numbers, the second cross beams are respectively connected with two tail ends of the two first cross beams, the first cross beams and the second cross beams are perpendicular to each other, two ends of the reinforcing beam are respectively arranged on the first cross beams at equal intervals, and the reinforcing beam is perpendicular to the first cross beams; the guide wheel assembly comprises a plurality of climbing wheels for climbing, a plurality of supporting wheels for supporting and a plurality of auxiliary wheels for exchanging; the climbing wheels and the supporting wheels are respectively arranged on the side wall of the first cross beam and are in sliding connection with a climbing guide rail on a machine tool; the auxiliary wheel is arranged at the bottom of the first cross beam and is in sliding connection with the guide rail on the upper surface of the translation platform.

The laser cutting machine work platform frame in, the climbing wheel passes through the lift leg setting and is in on the lateral wall of first crossbeam, the climbing wheel includes climbing front wheel and climbing rear wheel, climbing front wheel and climbing rear wheel set up respectively to two sets of, are climbing front wheel, climbing rear wheel, climbing front wheel and climbing rear wheel respectively from the front end to the rear end of first crossbeam, each climbing wheel corresponds a climbing guide rail.

In the working platform frame of the laser cutting machine, the supporting wheels are arranged on the side wall of the first cross beam through supporting legs, the supporting wheels are arranged into three groups, and a group of supporting wheels is arranged between two adjacent groups of climbing wheels; the auxiliary wheels are arranged into four groups, and each group of auxiliary wheels is arranged between the climbing wheel and the supporting wheel.

Laser cutting machine work platform frame in, the climbing front wheel distance the distance of first crossbeam lateral wall is greater than the climbing rear wheel distance the distance of first crossbeam lateral wall, supporting wheel slidable sets up the climbing guide rail that the climbing front wheel corresponds with the climbing guide rail that the climbing rear wheel corresponds is last.

In the working platform frame of the laser cutting machine, two groups of climbing rear wheels are provided with chamfers matched with a climbing guide rail with chamfers on a machine tool.

Laser cutting machine work platform frame in, be located first crossbeam front end the vertical two slide rails that are equipped with on the lateral wall of lift leg, sliding connection has the chain connecting block on the slide rail, the chain connecting block is connected with the actuating mechanism transmission, actuating mechanism is used for driving work platform frame reciprocating motion on the climbing guide rail.

In the working platform frame of the laser cutting machine, hanging plates are arranged on the inner side wall of the first cross beam at equal intervals.

In the working platform frame of the laser cutting machine, two sides of the reinforcing beam are respectively provided with clamping plates extending along the length direction of the reinforcing beam, the upper parts of the clamping plates protrude out of the upper part of the reinforcing beam, and a first protective layer is arranged between the two clamping plates.

In the working platform frame of the laser cutting machine, positioning plates are respectively arranged at two ends of the reinforcing beam, and each positioning plate comprises a positioning main plate and reinforcing plates arranged at two sides of the positioning main plate; the positioning main plate is an L-shaped plate, the back surface of the positioning main plate is connected with the side wall of the first cross beam, and the bottom of the positioning main plate is connected with the upper surface of the reinforcing beam; a second protective layer is arranged inside the positioning plate; and two ends of the first protective layer are respectively abutted against one end of the two second protective layers.

A laser cutting machine comprises a machine tool, a laser and a translation platform, wherein a working platform frame of the laser cutting machine is arranged on the machine tool, and a rack module used for bearing a workpiece is arranged on the working platform frame of the laser cutting machine; the translation platform is arranged on the machine tool in a sliding mode and used for bearing a workpiece; the laser is arranged at the front end of the machine tool and used for machining a workpiece on a working platform frame or a translation platform of the laser cutting machine.

Has the advantages that:

the utility model provides a laser cutting machine work platform frame and a laser cutting machine, the laser cutting machine work platform frame is respectively matched with a climbing guide rail, a translation guide rail and a guide rail by arranging a climbing wheel, a supporting wheel and an auxiliary wheel, so that the exchange and the sliding of the work platform frame are more stable; by arranging the hollow working platform frame, the rack module is arranged between the stiffening beams, so that the volume of the working platform frame is favorably reduced, the contact area of the working platform frame and laser is reduced, the occurrence of thermal deformation is reduced, and the service life of the working platform frame is prolonged; the rack module is arranged, so that the rack is more convenient to mount; when the rack needs to be replaced, the rack module is detached and then replaced, and the replacement labor intensity is favorably reduced.

Drawings

Fig. 1 is the utility model provides a structural schematic diagram of laser cutting machine work platform frame.

Fig. 2 is a schematic structural diagram of the working platform frame of the laser cutting machine with the rack module hidden.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is an enlarged view of a portion B in fig. 2.

Fig. 5 is a bottom view of the laser cutting machine work platform frame with the rack module removed.

Fig. 6 is an enlarged view of a portion C in fig. 5.

Fig. 7 is a schematic structural view of a machine tool.

Fig. 8 is an enlarged view of a portion D in fig. 7.

Fig. 9 is a schematic structural diagram of a machine tool, a climbing guide rail and a laser cutting machine platform frame.

In the drawings: 1-first beam, 2-second beam, 3-reinforcing beam, 31-clamping plate, 32-first protective layer, 33-positioning plate, 331-positioning main plate, 332-reinforcing plate, 34-second protective layer, 4-rack module, 5-guide wheel assembly, 51-climbing wheel, 501-climbing front wheel, 502-climbing rear wheel, 511-chamfer, 52-supporting wheel, 53-auxiliary wheel, 54-lifting leg, 541-sliding rail, 55-supporting leg, 6-chain connecting block, 7-hanging plate, 71-mounting hole, 8-positioning block, 100-machine tool, 200-climbing guide rail, 201-first horizontal part, 202-inclined part, 203-second horizontal part and 300-translation guide rail.

Detailed Description

The utility model provides a laser cutting machine work platform frame and laser cutting machine, for making the utility model discloses a purpose, technical scheme and effect are clearer, make clear and definite, and it is right that the following refers to the drawing and the embodiment is lifted the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The arrows in fig. 1, 2, 5, 7, 9 indicate the rear direction and vice versa the front direction.

Referring to fig. 1-9, the present invention provides a working platform frame of a laser cutting machine, comprising: the device comprises a first cross beam 1, a second cross beam 2, a reinforcing beam 3 and a guide wheel assembly 5; the first cross beams 1 are symmetrically arranged in two, the second cross beams 2 are respectively connected with two tail ends of the two first cross beams 1, the first cross beams 1 and the second cross beams 2 are perpendicular to each other, two ends of the reinforcing beam 3 are respectively arranged on the first cross beams 1 at equal intervals, and the reinforcing beam 3 is parallel to the second cross beams 2 and is perpendicular to the first cross beams 1; the guide wheel assembly 5 comprises a plurality of climbing wheels 51 for climbing, a plurality of supporting wheels 52 for supporting and a plurality of auxiliary wheels 53 for exchanging; the climbing wheels 51 and the supporting wheels 52 are respectively arranged on the side walls of the first cross beam 1 and are in sliding connection with a climbing guide rail 200 on the machine tool 100; the auxiliary wheel 53 is arranged at the bottom of the first beam 1 and is slidably connected with a guide rail (not shown) on the upper surface of a translation platform (not shown).

In practical application, the working platform frame is a climbing platform, a translation platform (not shown in the figure) is further arranged on the machine tool 100, the climbing platform and the translation platform alternately slide to the lower side of a laser (not shown in the figure), and the laser performs laser cutting on a workpiece on the climbing platform or the translation platform. The guide wheel assembly 5 is arranged, so that the working platform frame can climb, slide and exchange on the machine tool 100 conveniently; the chain has high transmission efficiency and good stability. Referring to fig. 7 and 9, in the present invention, the climbing rail 200 includes a first horizontal portion 201, an inclined portion 202 and a second horizontal portion 203, the height of the second horizontal portion 203 is higher than that of the first horizontal portion 201, when the working platform frame is located at the front end of the machine tool 100 (at this time, the laser performs workpiece processing), the climbing wheel 51 is located on the first horizontal portion 201, the supporting wheel 52 is located on the second horizontal portion 203, and the auxiliary wheel 53 is suspended; when the climbing wheel 51 is positioned on the inclined part 202 (climbing is performed at this time), the supporting wheel 52 and the auxiliary wheel 53 are both suspended; when the climbing wheel 51 is positioned on the second horizontal part 203, the supporting wheel 52 and the auxiliary wheel 53 are both suspended; the working platform frame continues to move backwards (the translation platform also moves forwards through the translation guide rail 300), the auxiliary wheels 53 slide to the guide rails on the upper surface of the translation platform, and after the climbing platform and the translation platform complete exchange, the supporting wheels 52 play a supporting role. Through the arrangement, the exchange process is more ingenious, and the exchange stability is improved.

Referring to fig. 1, in practical applications, rack modules 4 are respectively disposed between the stiffening beams 3, and the rack modules 4 are embedded in the hollow structure of the working platform frame for bearing a workpiece. In the prior art, the mounting bars are arranged on the first cross beam, and the racks are arranged above the first cross beam at intervals through the mounting bars. Meanwhile, when a workpiece with a large width or length is machined, the workpiece is possibly positioned close to the edge of the rack (namely when the workpiece is positioned above the first cross beam), and laser easily penetrates through the workpiece to reach the first cross beam, so that the thermal deformation probability of the first cross beam is increased. In the utility model, the working platform frame is made to be a hollow structure by arranging the first beam 1, the second beam 2 and the stiffening beam 3, the stiffening beam 3 divides the working platform frame into a plurality of accommodating cavities, and each accommodating cavity is embedded with two rack modules 4, the rack modules 4 are welded on the inner side wall of the first beam 1, thereby not only being beneficial to reducing the volume of the working platform frame, but also being beneficial to reducing the contact area between the working platform frame and laser, reducing the occurrence of thermal deformation, and prolonging the service life of the working platform frame; the rack module 4 is arranged, so that the rack is more convenient to mount; when the rack needs to be replaced, the rack module 4 is detached and then replaced, and the replacement labor intensity is favorably reduced.

Referring to fig. 1-2, 5-6, and 7-9, further, the climbing wheels 51 are disposed on the side wall of the first beam 1 through the lifting legs 54, the climbing wheels 51 include a climbing front wheel 501 and a climbing rear wheel 502, the climbing front wheel 501 and the climbing rear wheel 502 are respectively disposed in two sets, the climbing front wheel 501, the climbing rear wheel 502, the climbing front wheel 501 and the climbing rear wheel 502 are respectively disposed from the front end to the rear end of the first beam 1, and each climbing wheel 51 corresponds to one climbing guide rail 200. That is, four climbing guide rails 200 are provided on the machine tool 1, wherein the extension lines of the climbing guide rails 200 corresponding to the two climbing front wheels 501 coincide with each other, and the extension lines of the climbing guide rails 200 corresponding to the two climbing rear wheels 502 coincide with each other. In practical application, the climbing front wheels 501 arranged in front and back can successively slide to the two climbing guide rails 200 with the overlapped extension lines in the sliding process, similarly, the climbing rear wheels 502 arranged in front and back can successively slide to the two climbing guide rails 200 with the overlapped extension lines in the sliding process, when one group of the climbing front wheels 501 or the climbing rear wheels 502 slides to the disconnection parts of the two climbing guide rails 200, the supporting wheels 52 and the auxiliary wheels 53 play a role in supporting, the working platform frame is prevented from falling from the climbing guide rails 200, the cost for arranging the group of climbing guide rails 200 at the disconnection parts can be saved, and the size of the machine tool 100 can be reduced. The arrangement is ingenious, so that the working platform framework has good stability when climbing and sliding.

Referring to fig. 1-2, 5-6 and 9, further, the supporting wheels 52 are disposed on the side wall of the first beam 1 through supporting legs 55, the supporting wheels 52 are disposed in three groups, and a group of supporting wheels 52 is disposed between two adjacent groups of climbing wheels 51; the auxiliary wheels 53 are provided in four sets, and each set of auxiliary wheels 53 is provided between the climbing wheel 51 and the support wheel 52. Specifically, the guide wheel assemblies 5 sequentially from the front end to the rear end of the first cross beam 1 are respectively as follows: climbing front wheel 501, auxiliary wheel 53, supporting wheel 52, climbing rear wheel 502, auxiliary wheel 53, supporting wheel 52, auxiliary wheel 53, climbing front wheel 501, supporting wheel 52, auxiliary wheel 53, climbing rear wheel 502. The climbing, sliding and exchanging of the platform frame are smooth by limiting the number of the climbing wheels 51, the supporting wheels 52 and the auxiliary wheels 53; compared with the prior art, the quantity of the climbing wheels 51 and the supporting wheels 52 is increased, the bearing capacity of the working platform frame is improved, and plates with large weight and large breadth can be processed and cut.

Referring to fig. 5-6 and 9, further, the distance between the front climbing wheels 501 and the side wall of the first beam 1 is greater than the distance between the rear climbing wheels 502 and the side wall of the first beam 1, and the support wheels 52 are slidably disposed on the climbing guide rail 200 corresponding to the front climbing wheels 501 and the climbing guide rail 200 corresponding to the rear climbing wheels 502. That is, the climbing guide rails 200 corresponding to the climbing front wheels 501 and the climbing rear wheels 502 are relatively close to each other, the wheel surfaces of the supporting wheels 52 are relatively large, and when the two climbing guide rails 200 are located on the same horizontal plane, the supporting wheels 52 can slide on the two climbing guide rails 200, so that the supporting effect of the supporting wheels 52 on the working platform frame is better through the arrangement, and the stability of the working platform frame is better.

Referring to fig. 5-6 and 8, further, two sets of the rear climbing wheels 502 are provided with chamfers 511 adapted to the climbing guide rails 200 with chamfers on the machine tool 100. Through the arrangement, the stability of the working platform frame during climbing and exchanging is improved.

Referring to fig. 2 and 4, further, two sliding rails 541 are vertically arranged on the outer side wall of the lifting leg 54 located at the front end of the first cross beam 1, a chain connecting block 6 is slidably connected to the sliding rails 541, the chain connecting block 6 is in transmission connection with a driving mechanism (not shown in the figure), and the driving mechanism is used for driving the working platform frame to move back and forth on the climbing guide rail 200. When lift leg 54 climbs the slope, chain connecting block 6 takes place relative displacement through slide rail 541 and lift leg 54, through the aforesaid setting, drags the chain through chain connecting block 6 when avoiding lift leg 54 to climb the slope to avoid the emergence of interference.

Referring to fig. 2, further, hanging plates 7 are equidistantly arranged on the inner side wall of the first cross beam 1, and the hanging plates 7 are used for supporting the rack module 4. During assembly, the rack module 4 is fixedly connected with the hanging plate 7 through the mounting hole 71. The upper surface of the second cross beam 2 at the front end is provided with at least one positioning block 8, and the inner side wall of the positioning block 8 is abutted to the rack module 4. Through setting up locating piece 8 for fix a position first rack module 4, the installation of subsequent rack module 4 of being convenient for.

Referring to fig. 2-3, further, two sides of the reinforcing beam 3 are respectively provided with a clamping plate 31 extending along the length direction of the reinforcing beam 3, the upper portion of the clamping plate 31 protrudes out of the upper portion of the reinforcing beam 3, and a first protective layer 32 is disposed between the two clamping plates 31. The two clamping plates 31 play a limiting role, so that the first protective layer 32 is arranged on the upper surface of the reinforcing beam 3, the reinforcing beam 3 is effectively protected, and the probability of thermal deformation is reduced. Specifically, the first protective layer 32 is a graphite layer.

Referring to fig. 2-3, further, two ends of the reinforcing beam 3 are respectively provided with a positioning plate 33, and the positioning plate 33 includes a positioning main plate 331 and reinforcing plates 332 disposed at two sides of the positioning main plate 331; the positioning main plate 331 is an L-shaped plate, the back surface of the positioning main plate is connected with the side wall of the first cross beam 1, and the bottom of the positioning main plate is connected with the upper surface of the reinforcing beam 3; a second protective layer 34 is arranged inside the positioning plate 33; both ends of the first protective layer 32 are respectively abutted against one end of the two second protective layers 34. The second protective layer 34 is arranged on the upper surface of the reinforcing beam 3 by arranging the positioning plate 33; the second protective layer 34 is arranged, so that the two ends of the reinforcing beam 3 are effectively protected; the first protective layer 32 is closely connected with the second protective layer 34, so that gaps are reduced, and laser is prevented from directly irradiating the reinforcing beam 3. Specifically, the second protective layer 34 is a graphite layer.

The utility model also provides a laser cutting machine, including lathe 100, laser instrument and translation platform, be provided with the laser cutting machine work platform frame on the lathe 100, be equipped with the rack module 4 that is used for bearing the weight of the work piece on the laser cutting machine work platform frame; the translation platform is slidably arranged on the machine tool 100 and used for bearing a workpiece; the laser is arranged at the front end of the machine tool 100 and is used for machining a workpiece on a working platform frame or a translation platform of the laser cutting machine.

To sum up, laser cutting machine work platform frame through set up climbing wheel 51, supporting wheel 52 and auxiliary wheel 53, respectively with climbing guide rail 200, translation guide rail 300 and guide rail's cooperation down, make the exchange, slide more steady. By limiting the number of climbing wheels 51, support wheels 52 and auxiliary wheels 53, the load-bearing capacity and the smoothness of the work platform frame are improved. The working platform frame is of a hollow structure by arranging the first cross beam 1, the second cross beam 2 and the reinforcing beam 3, the working platform frame is divided into a plurality of accommodating cavities by the reinforcing beam 3, a rack module 4 is embedded in each accommodating cavity, and the rack modules 4 are welded on the inner side wall of the first cross beam 1, so that the size of the working platform frame is favorably reduced, the contact area of the working platform frame and laser is favorably reduced, the occurrence of thermal deformation is reduced, and the service life of the working platform frame is prolonged; the rack module 4 is arranged, so that the rack is more convenient to mount; when the rack needs to be replaced, the rack module 4 is detached and then replaced, and the replacement labor intensity is favorably reduced. By arranging the first protective layer 32 and the second protective layer 34, the reinforcing beam 3 is protected, and the reinforcing beam 3 is prevented from being directly contacted with laser.

In the description of the present invention, it is to be understood that the terms "inner", "outer", "front", "rear", "left", "right", "horizontal", "vertical", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.

Claims (10)

1. A laser cutting machine work platform frame, comprising: the reinforcing beam is arranged on the first cross beam and the second cross beam; the first cross beams are symmetrically arranged in two numbers, the second cross beams are respectively connected with two tail ends of the two first cross beams, the first cross beams and the second cross beams are perpendicular to each other, two ends of the reinforcing beam are respectively arranged on the first cross beams at equal intervals, and the reinforcing beam is perpendicular to the first cross beams; the guide wheel assembly comprises a plurality of climbing wheels for climbing, a plurality of supporting wheels for supporting and a plurality of auxiliary wheels for exchanging; the climbing wheels and the supporting wheels are respectively arranged on the side wall of the first cross beam and are in sliding connection with a climbing guide rail on a machine tool; the auxiliary wheel is arranged at the bottom of the first cross beam and is in sliding connection with the guide rail on the upper surface of the translation platform.

2. The working platform frame of the laser cutting machine according to claim 1, wherein the climbing wheels are disposed on the side wall of the first beam through lifting legs, the climbing wheels include a climbing front wheel and a climbing rear wheel, the climbing front wheel and the climbing rear wheel are respectively disposed in two groups, the climbing front wheel, the climbing rear wheel, the climbing front wheel and the climbing rear wheel are respectively disposed from the front end to the rear end of the first beam, and each climbing wheel corresponds to one climbing guide rail.

3. The laser cutting machine work platform frame according to claim 2, wherein the support wheels are arranged on the side wall of the first cross beam through support legs, the support wheels are arranged in three groups, and a group of support wheels is arranged between two adjacent groups of climbing wheels; the auxiliary wheels are arranged into four groups, and each group of auxiliary wheels is arranged between the climbing wheel and the supporting wheel.

4. The laser cutting machine work platform frame of claim 2, wherein the distance from the front climbing wheel to the first beam side wall is greater than the distance from the rear climbing wheel to the first beam side wall, and the support wheels are slidably disposed on the climbing guide rail corresponding to the front climbing wheel and the climbing guide rail corresponding to the rear climbing wheel.

5. The laser cutting machine work platform frame of claim 2, wherein the two sets of rear climbing wheels are provided with chamfers adapted to the climbing rails with chamfers on the machine tool.

6. The laser cutting machine work platform frame according to claim 2, characterized in that two slide rails are vertically arranged on the outer side wall of the lifting leg at the front end of the first beam, a chain connecting block is connected to the slide rails in a sliding manner, and is in transmission connection with a driving mechanism, and the driving mechanism is used for driving the work platform frame to move back and forth on the climbing guide rail.

7. The laser cutting machine work platform frame of claim 1, wherein the inner side wall of the first beam is provided with hanging plates at equal intervals.

8. The laser cutting machine work platform frame according to claim 1, wherein the reinforcing beam is provided with two clamping plates on two sides thereof, the clamping plates extending along the length direction of the reinforcing beam, the upper parts of the clamping plates protrude out of the upper part of the reinforcing beam, and a first protective layer is arranged between the two clamping plates.

9. The laser cutting machine work platform frame according to claim 8, wherein the two ends of the reinforcement beam are respectively provided with a positioning plate, and the positioning plate comprises a positioning main plate and reinforcing plates arranged on two sides of the positioning main plate; the positioning main plate is an L-shaped plate, the back surface of the positioning main plate is connected with the side wall of the first cross beam, and the bottom of the positioning main plate is connected with the upper surface of the reinforcing beam; a second protective layer is arranged inside the positioning plate; and two ends of the first protective layer are respectively abutted against one end of the two second protective layers.

10. A laser cutting machine comprises a machine tool, a laser and a translation platform, and is characterized in that a laser cutting machine working platform frame according to any one of claims 1-9 is arranged on the machine tool, and a rack module for bearing a workpiece is arranged on the laser cutting machine working platform frame; the translation platform is arranged on the machine tool in a sliding mode and used for bearing a workpiece; the laser is arranged at the front end of the machine tool and used for machining a workpiece on a working platform frame or a translation platform of the laser cutting machine.

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