Chuck for laser cutting machine

Abstract

The utility model provides a chuck for a laser cutting machine, which comprises a bearing seat, one side of the bearing seat is connected with a chuck assembly through a driving assembly, and the other side of the bearing seat is connected with a gas circuit distribution assembly used for the driving assembly. Stepless movement of the clamping jaw can be achieved, so that when the clamping jaw is used, clamping is more accurate, and the cutting accuracy of the laser cutting machine can be better guaranteed. And meanwhile, equipment stability is improved, the service life is long, and machining noise is low.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of machining equipment, in particular to a chuck for laser cutting machine. BACKGROUND

[0002] At present, the optical fiber laser has become increasingly mature, and the laser cutting has gradually replaced the traditional cutting technology such as wire cutting, and has become the preferred processing method in sheet metal processing. The advantage of laser is that the cutting precision is relatively high, the cutting speed is fast, and the cutting surface is relatively flat and smooth; and the laser cutting also has the advantages of small working surface, clean and pollution-free processing process and the like.

[0003] However, with the increasingly wide application range of the laser cutting machine, the requirements for the chuck used for the clamping part thereof are also increasingly high. The driving assembly part of the current laser cutting machine is driven by gear and rack transmission. For high-precision cutting, the clamping tightness of this driving mode cannot be linearly adjusted, the clamping tightness is unstable, and it is easy to cause the cutting precision to be reduced. In addition, the gear transmission mode also has the disadvantages of easy wear, high failure rate after long operation, and increased use cost. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a chuck for laser cutting machine which is stable in clamping, good in precision, low in failure and low in cost.

[0005] In order to solve the above technical problems, the technical scheme adopted by the present application is as follows:

[0006] A chuck for laser cutting machine, comprising a bearing seat, a chuck assembly is connected to one side of the bearing seat through a driving assembly, and a gas path distribution assembly for the driving assembly is connected to the other side of the bearing seat, and the innovation point lies in that

[0007] The driving assembly comprises a gas cylinder, a dial and a sliding block guide column, one end of the sliding block guide column is in the arc groove of the dial, and the gas cylinder drives the dial and the sliding block guide column to slide in the arc groove through the piston rod thereof;

[0008] The chuck assembly comprises a chuck body and a jaw, three or more than three sliding grooves are uniformly arranged on the chuck body, a sliding block is slidably connected in each sliding groove, and one jaw is connected to each sliding block; the jaw slides along the sliding groove on the chuck body to realize the clamping or loosening state of the jaw.

[0009] Further, the driving assembly is two groups, the two dials are arranged staggered, a dial rod is connected to the dial, the other end of the dial rod is connected with a gas cylinder joint fixedly connected with the piston rod of the gas cylinder; the dial is provided with an arc groove, one end of the sliding block guide column is in the arc groove, and the other end of the sliding block guide column is fixedly connected with the sliding block through the sliding groove of the chuck body.

[0010] Further, two circular arc grooves are oppositely formed on each dial, the two dials are oppositely arranged, the clamping claws are four, and each dial drives each clamping claw to realize the clamping or loosening state through the sliding block guide column.

[0011] Further, the chuck body is rotationally connected with the bearing seat through a cylinder positioning shaft, and the cylinder is fixedly connected with the cylinder positioning shaft through a cylinder rotation support plate.

[0012] The other side of the bearing seat is fixedly connected with a speed reduction mechanism, the speed reduction mechanism comprises a speed reducer mounting seat, a driving gear and a driven gear, the speed reducer mounting seat is fixedly arranged on one side of the bearing seat through screws, the driving gear and the driven gear are mounted in the speed reducer mounting seat, the driven gear is fixedly connected with the rear end of the sealing disc, the driving gear is engaged with the driven gear, and the rear end of the driving gear is fixedly connected with a mounting sleeve.

[0013] Further, the chuck body is further fixedly connected with a dial seat, and the two dials are rotationally mounted on the dial seat and have balls between the dial seat and the dials.

[0014] Further, the chuck body and the bearing seat further have an air ring seat.

[0015] Further, the chuck body is provided with a sliding groove on the side where the clamping claw is mounted, a sliding block is arranged in the sliding groove, and the two sides of the sliding block are further provided with upper pressing strips, and the upper pressing strips are fixedly connected with the chuck body.

[0016] Further, the upper pressing strips are fixedly connected with a bridge connecting plate, the bridge connecting plate is threadedly connected with a positioning rod, and the front end of the positioning rod abuts against the clamping claw.

[0017] Further, the driving gear and the driven gear are cylindrical gears.

[0018] In summary, the technical scheme of the present application has the following beneficial effects compared with the conventional technical means:

[0019] 1. The present application adopts the form of cylinder driving dial, through the transmission of sliding groove guide block, the stepless motion of the clamping claw can be realized, so that the clamping is more accurate when the clamping claw is used, thereby the cutting accuracy of the laser cutting machine can be more ensured.

[0020] 2. The structure of the present application reduces the instability of gear transmission and the complexity of gear transmission installation, and the friction between the gear and the rack is easy to wear, the dial structure in the present application can effectively ensure the motion stability for a long time.

[0021] 3. The dial structure of the present application can reduce the noise caused by friction, so that the production environment is more quiet and safe.

[0022] In summary, the chuck for laser cutting machine of the present application adopts a new driving structure form, which can achieve more accuracy in function and has better stability than the gear transmission structure form, which is obvious. BRIEF DESCRIPTION OF DRAWINGS

[0023] The present application will be further described in detail below with reference to the accompanying drawings.

[0024] Figure 1 is a structural schematic diagram of the present application;

[0025] Figure 2 is an exploded view of the structural schematic diagram of the present application;

[0026] Figure 3 is Figure 1 a front view;

[0027] Figure 4 is a structural schematic diagram of the driving assembly and the chuck assembly of the present application;

[0028] Figure 5 is a structural schematic diagram of the dial of the present application.

[0029] Wherein: 1. bearing seat, 2. driving assembly, 3. chuck assembly, 4. air distribution assembly, 5. speed reducer, 6. gas ring seat, 210. air cylinder, 211. dial, 212. sliding block guide column, 312. sliding groove, 310. chuck body, 313. sliding block, 311. chuck jaw, 314. dial seat, 315. upper pressing strip, 316. bridge connecting plate, 317. positioning rod, 213. dial rod, 214. air cylinder joint, 215. circular arc groove, 216. air cylinder positioning shaft, 217. air cylinder rotating support plate, 503. speed reducer mounting seat, 504. mounting sleeve. DETAILED DESCRIPTION

[0030] The following embodiments of the present application are for illustration, and through the following description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content of the specification, and must be determined according to the scope of the claims.

[0031] The present application is further described with reference to the following drawings:

[0032] Reference is made to the accompanying Figures 1-5 A chuck for laser cutting machine, comprising a bearing seat 1, the bearing seat 1 is connected with a chuck assembly 3 on one side through a driving assembly 2, the other side of the bearing seat 1 is connected with an air distribution assembly 4 for the driving assembly 2, the innovation point of which is that,

[0033] The driving assembly 2 comprises a cylinder 210, a dial plate 211 and a slider guide column 212, one end of the slider guide column 212 is in an arc slot 215 of the dial plate 211, the cylinder 210 drives the dial plate 211 to drive the slider guide column 212 to slide in the arc slot 215 through the piston rod of the cylinder 210;

[0034] The chuck assembly 3 comprises a chuck body 310 and a jaw 311, three or more slide grooves 312 are uniformly arranged on the chuck body 310, a sliding block 313 is slidably connected in each slide groove 312, and one jaw 311 is connected to each sliding block 313; the jaw 311 slides along the slide groove 312 on the chuck body 310 to realize the clamping or loosening state of the jaw 311. The present application adopts a four-jaw form, which can clamp various workpieces such as round pipes, square pipes, rectangular pipes and profiles, has stable clamping, high precision and small noise in the production process, and is suitable for most current laser cutting scenes.

[0035] As shown in Figure 1 , 4 , 5, the driving assembly 2 is two groups, the two dial plates 211 are arranged staggered, the dial plate 211 is connected with a dial plate rod 213, the other end of the dial plate rod 213 is connected with a cylinder joint 214 fixedly connected with the piston rod of the cylinder 210; the dial plate 211 is provided with an arc slot 215, one end of the slider guide column 212 is in the arc slot 215, and the other end penetrates through the slide groove 312 of the chuck body 310 and is fixedly connected with the sliding block 313. Of course, the present application can also be provided in a clamping mode of more than two groups of driving assemblies, according to the needs, theoretically, the more the driving assemblies 2 are provided, the higher the clamping precision is, and more occasions and more shapes of the workpieces to be cut can be adapted to. In the present application, the arc slot 215 drives the slider guide column 212 clamped in the slot to move, so that the slider guide column 212 drives the sliding block 313 to move along the radial direction of the chuck, and the chuck clamping or loosening program is realized.

[0036] Two arc slots 215 are oppositely arranged on each dial plate 211, the two dial plates 211 are oppositely arranged, the jaw 311 has four, and each dial plate 211 drives each jaw to realize the clamping or loosening state through the slider guide column 212. In the present application, the two dial plates are oppositely arranged, and the arc slots 215 are symmetrically arranged on each dial plate 211, which is equivalent to that the four jaws 311 are uniformly pushed by the slider guide column 212 in the arc slot 215. The slider guide column 212 driven by each dial plate 211 is linked, and does not have any hysteresis, and the two jaws 311 oppositely arranged are synchronized to clamp or loosen.

[0037] As shown in Figure 1 , 2As shown, the chuck body 310 is rotatably connected with the bearing seat 1 through a cylinder positioning shaft 216, and the cylinder 210 is fixedly connected with the cylinder positioning shaft 216 through a cylinder rotating support plate 217. This mounting mode can ensure stable installation of the cylinder 210 and does not affect the cooperation movement.

[0038] The other side of the bearing seat 1 is fixedly connected with a speed reduction mechanism 5, the speed reduction mechanism 5 comprises a speed reducer mounting seat 503, a driving gear and a driven gear, the speed reducer mounting seat 503 is fixedly arranged on one side of the bearing seat 1 through screws, the driving gear and the driven gear are mounted in the speed reducer mounting seat 503, the driven gear is fixedly connected with the rear end of the sealing disc, the driving gear is engaged with the driven gear, and the rear end of the driving gear is fixedly connected with a mounting sleeve 504. The driving gear and the driven gear are cylindrical gears.

[0039] As shown in the figure, Figure 1 The chuck body 310 is further fixedly connected with a dial seat 314, two dials 211 are rotatably mounted on the dial seat 314, and the dial seat 314 and the dial 211 are provided with balls.

[0040] As shown in the figure, Figures 1-5 The chuck body 310 and the bearing seat 1 are further provided with a gas ring seat 6. The gas ring seat 6 can ensure the stable effect of the gas circuit of the cylinder in high-speed operation and does not affect the entire gas circuit.

[0041] As shown in the figure, Figure 1 , 5 The chuck body 310 is provided with a sliding groove 312 on one side of the chuck claw mounting, a sliding block 313 is arranged in the sliding groove 312, and the two sides of the sliding block 313 are further provided with upper pressing strips 315, and the upper pressing strips 315 are fixedly connected with the chuck body 310. The upper pressing strips 315 are fixedly connected with a bridge connecting plate 316, the bridge connecting plate 316 is threadedly connected with a positioning rod 317, and the front end of the positioning rod 317 abuts against the chuck claw 311. This structure can effectively ensure stable movement of the sliding block 313 in the sliding groove 213 and prevent the sliding block 313 from moving, thereby effectively ensuring the precision of the chuck.

[0042] The chuck for the laser cutting machine adopts the form of a cylinder driving dial, drives the sliding block and the chuck claw to realize movement clamping and loosening through the transmission of the sliding groove guide block. The cylinder controls the movement of the piston rod through air pressure, thereby ensuring the clamping force of the chuck. The present application not only has more accurate functions, but also has better stability than the existing gear transmission structure.

Claims

1. A chuck for laser cutting machine, comprising a bearing seat (1), a chuck assembly (3) is connected to one side of the bearing seat (1) through a driving assembly (2), and a gas path distribution assembly (4) for the driving assembly (2) is connected to the other side of the bearing seat (1), characterized in that, the driving assembly (2) comprises a cylinder (210), a dial plate (211) and a slider guide column (212), one end of the slider guide column (212) is in an arc slot (215) of the dial plate (211), and the cylinder (210) drives the dial plate (211) to slide in the arc slot (215) through a piston rod thereof. the chuck assembly (3) comprises a chuck body (310) and a jaw (311), three or more than three sliding grooves (312) are uniformly arranged on the chuck body (310), a sliding block (313) is slidably connected in each sliding groove (312), and one jaw (311) is connected to each sliding block (313); the jaw (311) slides along the sliding groove (312) on the chuck body (310) to realize a clamping or loosening state of the jaw (311).

2. The chuck for a laser cutting machine according to claim 1, characterized in that: the driving assembly (2) is two groups, the two dial plates (211) are arranged staggeredly, a dial plate rod (213) is connected to the dial plate (211), and the other end of the dial plate rod (213) is connected with a cylinder joint (214) fixedly connected with the piston rod of the cylinder (210); the dial plate (211) is provided with the arc slot (215), one end of the slider guide column (212) is in the arc slot (215), and the other end of the slider guide column (212) penetrates through the sliding groove (312) of the chuck body (310) and is fixedly connected with the sliding block (313).

3. The chuck as claimed in claim 2, wherein: two arc slots (215) are oppositely arranged on each dial plate (211), the two dial plates (211) are oppositely arranged, the jaw (311) has four, and each dial plate (211) drives each jaw to realize a clamping or loosening state through the slider guide column (212).

4. The chuck as claimed in claim 1, wherein: a cylinder positioning shaft (216) is rotatably connected between the chuck body (310) and the bearing seat (1), and the cylinder (210) is fixedly connected with the cylinder positioning shaft (216) through a cylinder rotating support plate (217).

5. The chuck as claimed in claim 1, wherein: a reduction mechanism (5) is fixedly connected to the other side of the bearing seat (1), the reduction mechanism (5) comprises a reduction mechanism mounting seat (503), a driving gear and a driven gear, the reduction mechanism mounting seat (503) is fixedly arranged on one side of the bearing seat (1) through screws, the driving gear and the driven gear are mounted in the reduction mechanism mounting seat, the driven gear is fixedly connected with the rear end of a sealing disc, the driving gear is engaged with the driven gear, and the rear end of the driving gear is fixedly connected with a mounting sleeve (504).

6. The chuck as claimed in claim 2, wherein: a dial plate seat (314) is further fixed on the chuck body (310), the two dial plates (211) are rotatably mounted on the dial plate seat (314), and the dial plate seat (314) and the dial plate (211) have balls therebetween.

7. The chuck as claimed in claim 1, wherein: the chuck body (310) and the bearing seat (1) further have a gas ring seat (6).

8. The chuck as claimed in claim 1, wherein: The chuck body (310) is provided with a sliding groove (312) on the chuck jaw mounting side, a sliding block (313) is in the sliding groove (312), and the two sides of the sliding block (313) are further provided with upper pressing strips (315) which are fixedly connected with the chuck body (310).

9. The chuck as claimed in claim 8, wherein: The upper pressing strips (315) are fixedly connected with bridge connecting plates (316), the bridge connecting plates (316) are threadedly connected with positioning rods (317), and the positioning rods (317) abut against the front ends of the chuck jaws (311).

10. The chuck as claimed in claim 5, wherein: The driving gear and the driven gear are cylindrical gears.

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