High-precision laser cutting machine positioning tool

Abstract

The utility model relates to the technical field of laser cutting machines, in particular to a high-precision laser cutting machine positioning tool which comprises a cutting table, a support is fixedly assembled on the upper surface of the cutting table, a mounting frame is fixedly assembled on the surface of the support, and a lead screw is horizontally and rotationally connected into the mounting frame. The outer circumferential face of the lead screw is in threaded connection with a sliding block slidably connected with the inner wall of the mounting frame, a laser generator is fixedly assembled on the lower surface of the sliding block, two fixing plates are fixedly assembled on the upper surface of the cutting table, rotating pipes are horizontally and rotatably connected into the fixing plates, sliding rods slidably penetrate through the inner walls of the rotating pipes, and a supporting plate is fixedly assembled at one end of each sliding rod. A receding groove is formed in the surface of the supporting plate. According to the laser cutting device, the gear, the outer gear ring, the supporting plate and other components are matched, in the laser cutting process of the thick metal plate, after one face of the thick metal plate is cut and turned over, a cutting seam after turning over can coincide with a previous cutting seam, and then the cutting precision is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser cutting machine technical field especially relates to a high accuracy laser cutting machine positioning frock. BACKGROUND

[0002] The laser cutting machine is material surface is scanned by high power density laser beam, in extremely short time material is heated to several thousand to ten thousand degrees Celsius, makes material melt or gasification, reaches the purpose of cutting material, in the process that the laser cutting machine is used to cut metal plate, need to use frock to hold positioning metal plate.

[0003] When cutting the metal plate of thick size, the laser cutting machine needs to cut first on one side of the metal plate, then takes down the metal plate from the frock, repositions after turning over with the help of frock, then cuts the other side again, but in the actual operation process, when positioning after taking down and turning over the metal plate, it is difficult to ensure that the positions of twice cutting are completely coincident, causes the cutting seam to be misaligned, thereby causing the cutting precision to decline.

[0004] In summary, in the process that the laser cutting machine is used to cut thick metal plate in the prior art, when positioning after taking down and turning over the metal plate, it is difficult to ensure that the positions of twice cutting are completely coincident, causes the cutting seam to be misaligned, thereby causing the cutting precision to decline. UTILITY MODEL CONTENTS

[0005] In order to solve the above technical problems in the prior art, the utility model provides a high accuracy laser cutting machine positioning frock.

[0006] In order to realize the above purpose, the utility model adopts the following technical scheme: a high accuracy laser cutting machine positioning frock, including cutting table, the upper surface of cutting table is fixedly assembled with support, the surface of support is fixedly assembled with mounting frame, the horizontal rotation connection screw rod in mounting frame, the outer circumferential surface of screw rod is connected with the sliding block of mounting frame with the sliding connection of screw thread, the lower surface of sliding block is fixedly assembled with laser generator;

[0007] The upper surface of the cutting table is fixedly provided with two fixed plates, a rotating pipe is horizontally connected in the fixed plate, a sliding rod is slidably penetrated in the inner wall of the rotating pipe, a supporting plate is fixedly provided at one end of the sliding rod, a notching groove is formed in the surface of the supporting plate, a first electric push rod is fixedly provided on the surface of the supporting plate, a pressing plate is fixedly provided on the output end of the first electric push rod and penetrates through the supporting plate, a second electric push rod is fixedly provided on the side wall of the fixed plate, a rack is fixedly provided on the output end of the second electric push rod, an external gear ring is fixedly provided on the outer circumferential surface of the rotating pipe, the external gear ring is engaged with the rack, and the supporting plate can be rotated by 180 degrees to complete the turning operation of the thick metal plate through the cooperation of the rack and the external gear ring.

[0008] Preferably, a compression roller is rotatably connected to the side wall of the fixed plate, and the outer circumferential surface of the compression roller abuts against the surface of the rack.

[0009] Preferably, two blocking rings are fixedly provided on the outer circumferential surface of the compression roller, and the two blocking rings abut against the two sides of the rack, respectively.

[0010] Preferably, a plug rod is slidably penetrated in the rotating pipe, and a plurality of plug holes matched with the plug rod are formed in the surface of the sliding rod.

[0011] Preferably, a spring is sleeved on the circular arc surface of the plug rod, one end of the spring is fixedly connected with the plug rod, and the other end of the spring extends towards the rotating pipe and is connected with the rotating pipe.

[0012] Preferably, a U-shaped plate is fixedly provided on the surface of the supporting plate, a transmission plate is slidably sleeved on the surface of the U-shaped plate, a plurality of rollers are rotatably connected to the side of the transmission plate close to the supporting plate, the rollers penetrate through the supporting plate, a leaf spring is fixedly provided on the lower surface of the transmission plate, and one end of the leaf spring is fixedly provided on the surface of the U-shaped plate.

[0013] Preferably, a rotating rod abutting against the surface of the supporting plate is rotatably connected to the side wall of the pressing plate.

[0014] Compared with the prior art, the utility model provides a high-precision laser cutting machine positioning tool, which has the following beneficial effects:

[0015] (1) In the utility model, through cooperation of the gear, the external gear ring and the supporting plate, after one side of the thick metal plate is cut and turned over in the process of laser cutting of the thick metal plate, the cutting seam after turning over can be overlapped with the previous cutting seam, thereby greatly improving the cutting precision.

[0016] (2) By setting the compression roller and the blocking ring, the compression roller can extrude the rack, so as to ensure that the rack is closely engaged with the external gear ring, and the blocking ring can effectively limit the position of the rack, thereby further ensuring that the rack and the external gear ring can normally work.

[0017] (3) By setting U-shaped plate, leaf spring and roller and other components, when moving thick metal plate, the roller will support the thick metal plate, thereby reducing the resistance when the thick metal plate slides, facilitating operation. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of the specification, illustrate embodiments of the present application and are used to explain the present application, and do not constitute a limitation on the present application, in the drawings:

[0019] Figure 1 It is a structure schematic view of the whole high-precision laser cutting machine positioning tool of the present application;

[0020] Figure 2 It is a structure schematic view of the fixed plate of the present application;

[0021] Figure 3 It is another angle structure schematic view of the fixed plate of the present application;

[0022] Figure 4 It is a split structure schematic view of the supporting plate of the present application.

[0023] Legend: 1, cutting table; 2, support; 3, mounting frame; 4, lead screw; 5, servo motor; 6, sliding block; 7, laser generator; 8, fixed plate; 9, rotating pipe; 10, sliding rod; 11, supporting plate; 12, first electric push rod; 13, pressing plate; 14, second electric push rod; 15, rack; 16, outer ring; 17, compression roller; 18, insertion rod; 19, insertion hole; 20, spring; 21, U-shaped plate; 22, transmission plate; 23, roller; 24, leaf spring; 25, rotating rod; 26, let go slot; 27, blocking ring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0025] As Figures 1-4The utility model provides a high accuracy laser cutting machine positioning frock, including cutting table 1, the upper surface fixed assembly of cutting table 1 is equipped with support 2, the surface fixed assembly of support 2 is equipped with mounting frame 3, the horizontal rotation connection lead screw 4 in mounting frame 3, the outer wall fixed assembly of mounting frame 3 is equipped with servo motor 5, the output of servo motor 5 is coaxially fixed with lead screw 4, the outer circumferential surface screw joint of lead screw 4 is slidably connected with the inner wall of mounting frame 3 of sliding block 6, the lower surface fixed assembly of sliding block 6 is equipped with laser generator 7, when laser cutting to thick metal plate, open servo motor 5, the output of servo motor 5 will drive lead screw 4 to rotate, lead screw 4 will drive sliding block 6 to move by means of thread, sliding block 6 moves and will drive laser generator 7 to move, when laser generator 7 operates and will emit laser to cut thick metal plate,

[0026] In the above scheme, after cutting one side of the thick metal plate, it is difficult to ensure that the positions of the two cuts are completely coincident when the metal plate is removed and repositioned, causing misalignment of the cutting seam, thereby reducing the cutting accuracy. To avoid the above situation, the upper surface of the cutting table 1 is fixedly assembled with two fixed plates 8, the inner wall of the fixed plate 8 is slidably connected with a rotating tube 9, the inner wall of the rotating tube 9 is slidably connected with a sliding rod 10, one end of the sliding rod 10 is fixedly assembled with a supporting plate 11, the surface of the supporting plate 11 is provided with a recessed groove 26, the surface of the supporting plate 11 is fixedly assembled with a first electric push rod 12, the output end of the first electric push rod 12 is fixedly assembled with a pressing plate 13, the side wall of the fixed plate 8 is fixedly assembled with a second electric push rod 14, the output end of the second electric push rod 14 is fixedly assembled with a rack 15, the outer circumferential surface of the rotating tube 9 is fixedly assembled with an external gear ring 16, the external gear ring 16 is engaged with the rack 15, after placing the thick metal plate on the supporting plate 11 at a suitable position, the output end of the first electric push rod 12 is controlled to extend, the pressing plate 13 will press the thick metal plate tightly on the surface of the supporting plate 11, then the one side of the thick metal plate is cut, after cutting is completed, the output end of the second electric push rod 14 is controlled to extend, the rack 15 will drive the external gear ring 16 to rotate, the external gear ring 16 will drive the rotating tube 9 to rotate, the sliding rod 10 will rotate with the rotating tube 9 to drive the supporting plate 11 to rotate by 180 degrees, thereby turning over the thick metal plate without removing it, and the cutting seam after turning over will be completely coincident with the previous one, thereby greatly improving the cutting accuracy.

[0027] Further, during the movement of the rack 15, the rack 15 is prone to tilting due to the resistance of the external gear ring 16, causing the rack 15 and the external gear ring 16 to fail to engage normally, therefore the position of the rack 15 needs to be limited, specifically, the side wall of the fixed plate 8 is rotatably connected with a compression roller 17, the outer circumferential surface of the compression roller 17 abuts against the surface of the rack 15, during the movement of the rack 15, the compression roller 17 will press the rack 15, thereby ensuring that the rack 15 and the external gear ring 16 are closely engaged.

[0028] In addition, the rack 15 and the outer tooth ring 16 are prone to deviation during operation, so it is necessary to limit the movement path of the rack 15. In the embodiment, the outer circumferential surface of the compression roller 17 is fixedly provided with two stop rings 27, and the two stop rings 27 abut against the two sides of the rack 15, respectively. The two stop rings 27 can effectively limit the position of the rack 15, thereby further ensuring that the rack 15 and the outer tooth ring 16 can work normally.

[0029] Specifically, after adjusting the distance between the two supporting plates 11, the sliding rod 10 is prone to sliding along the inner wall of the rotating pipe 9, which causes the position of the thick metal plate to change, thereby reducing the cutting precision. Therefore, it is necessary to limit the position of the supporting plate 11. Specifically, the plug rod 18 is slidably inserted into the rotating pipe 9, and a plurality of plug holes 19 matched with the plug rod 18 are formed in the surface of the sliding rod 10. By inserting the plug rod 18 into the plug holes 19 at different positions, the distance between the two supporting plates 11 can be limited, thereby facilitating subsequent cutting of the thick metal plate.

[0030] After the rotating pipe 9 rotates by a certain angle, the plug rod 18 is prone to sliding out of the rotating pipe 9 and falling off, which causes the plug rod 18 to be unable to stably limit the position of the sliding rod 10. Therefore, it is necessary to prevent the plug rod 18 from falling off. In the embodiment, the plug rod 18 is sleeved with a spring 20, one end of the spring 20 is fixedly connected with the plug rod 18, and the other end of the spring 20 extends towards the rotating pipe 9 and is connected with the rotating pipe 9. The spring 20 can limit the position of the plug rod 18 by means of its own elastic force, thereby preventing the plug rod 18 from falling off from the rotating pipe 9 due to gravity.

[0031] When the thick metal plate is slid along the surface of the supporting plate 11 in the horizontal direction, the thick metal plate will have a large sliding friction with the supporting plate 11, thereby making it inconvenient to operate. Therefore, it is necessary to reduce the resistance when the thick metal plate slides. Specifically, the surface of the supporting plate 11 is fixedly provided with a U-shaped plate 21, the surface of the U-shaped plate 21 is slidably sleeved with a transmission plate 22, a plurality of rollers 23 are rotatably connected to the side of the transmission plate 22 close to the supporting plate 11, the rollers 23 penetrate through the supporting plate 11, and a leaf spring 24 is fixedly arranged on the surface of the U-shaped plate 21 and on the lower surface of the transmission plate 22. The leaf spring 24 can move upward by means of its own elastic force, so that the rollers 23 penetrate through the supporting plate 11. During the process of placing the thick metal plate on the surface of the supporting plate 11, the rollers 23 support the thick metal plate, thereby reducing the resistance when the thick metal plate slides and facilitating operation. When the thick metal plate is subsequently limited in position, the leaf spring 24 is compressed by the pressing plate 13 pressing the thick metal plate. When the thick metal plate contacts the supporting plate 11, the supporting plate 11 and the pressing plate 13 can normally limit the position of the thick metal plate.

[0032] In the process that the first electric push rod 12 drives the pressing plate 13 to move, the position of the pressing plate 13 is prone to deviate, so that the thick metal plate cannot be positioned normally, and therefore the movement path of the pressing plate 13 needs to be limited, and specifically, a rotating rod 25 is rotationally connected to the side wall of the pressing plate 13 and abuts against the surface of the supporting plate 11, the pressing plate 13 moves to drive the rotating rod 25 to roll along the surface of the supporting plate 11, and the rotating rod 25 can limit the movement path of the pressing plate 13.

[0033] In the description of the present application, the terms "first", "second", "another", "yet another" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0034] In the description of the present application, it should be pointed out that, unless otherwise specifically defined and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0035] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A high-precision laser cutting machine positioning tool, comprising a cutting table (1), characterized in that: The upper surface of the cutting table (1) is fixedly provided with a support (2), the surface of the support (2) is fixedly provided with a mounting frame (3), a lead screw (4) is horizontally rotationally connected in the mounting frame (3), the outer circumferential surface of the lead screw (4) is threadedly connected with a sliding block (6) which is slidingly connected with the inner wall of the mounting frame (3), and the lower surface of the sliding block (6) is fixedly provided with a laser generator (7); The upper surface of the cutting table (1) is fixedly provided with two fixed plates (8), the fixed plates (8) are horizontally rotationally connected with a rotating pipe (9), the inner wall of the rotating pipe (9) is slidingly penetrated by a sliding rod (10), one end of the sliding rod (10) is fixedly provided with a supporting plate (11), the surface of the supporting plate (11) is provided with a recess (26), the surface of the supporting plate (11) is fixedly provided with a first electric push rod (12), the output end of the first electric push rod (12) is fixedly provided with a pressing plate (13) penetrating through the supporting plate (11), the side wall of the fixed plate (8) is fixedly provided with a second electric push rod (14), the output end of the second electric push rod (14) is fixedly provided with a rack (15), the outer circumferential surface of the rotating pipe (9) is fixedly provided with an external gear ring (16), the external gear ring (16) is engaged with the rack (15), and through the cooperation of the rack (15) and the external gear ring (16), the supporting plate (11) can be rotated by one hundred and eighty degrees to complete the turning operation of the thick metal plate.

2. The positioning tool of claim 1, wherein: The side wall of the fixed plate (8) is rotationally connected with a compression roller (17), and the outer circumferential surface of the compression roller (17) abuts against the surface of the rack (15).

3. The positioning tool of claim 2, wherein: The outer circumferential surface of the compression roller (17) is fixedly provided with two retaining rings (27), and the two retaining rings (27) abut against the two sides of the rack (15) respectively.

4. The positioning tool of any one of claims 1-3, wherein: The rotating pipe (9) is slidingly penetrated by a plug rod (18), and the surface of the sliding rod (10) is provided with a plurality of plug holes (19) matched with the plug rod (18).

5. The positioning tool of claim 4, wherein: The curved surface of the plug rod (18) is sleeved with a spring (20), one end of the spring (20) is fixedly connected with the plug rod (18), and the other end of the spring (20) extends towards the rotating pipe (9) and is connected therewith.

6. The positioning tool of claim 5, wherein: The surface of the supporting plate (11) is fixedly provided with a U-shaped plate (21), the surface of the U-shaped plate (21) is slidingly sleeved with a transmission plate (22), a plurality of rollers (23) are rotationally connected to the side of the transmission plate (22) close to the supporting plate (11), the rollers (23) penetrate through the supporting plate (11), the lower surface of the transmission plate (22) is fixedly provided with a leaf spring (24), and one end of the leaf spring (24) is fixedly provided on the surface of the U-shaped plate (21).

7. The positioning tool of claim 6, wherein: The side wall of the pressing plate (13) is rotationally connected with a rotating rod (25) abutting against the surface of the supporting plate (11).

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