CN221363187U

CN221363187U - Self-centering four-jaw chuck for laser cutting

Info

Publication number: CN221363187U
Application number: CN202323518650.9U
Authority: CN
Inventors: 尹志成
Original assignee: Foshan Nanhai Hai Yu Mechanical And Electrical Industry Co ltd
Current assignee: Foshan Nanhai Hai Yu Mechanical And Electrical Industry Co ltd
Priority date: 2023-12-22
Filing date: 2023-12-22
Publication date: 2024-07-19
Anticipated expiration: 2033-12-22

Abstract

The utility model belongs to the technical field of chucks, and particularly relates to a self-centering four-jaw chuck for laser cutting, which comprises a shell, wherein a synchronous gear is arranged in the middle of the inner side wall of the shell, four cylinders which are distributed in an annular array are arranged on the inner side wall of the shell, racks are fixedly connected to telescopic ends of each cylinder, the racks slide with the shell, four gear swing rods which are distributed in an annular array are arranged in the shell, the gear ends of the gear swing rods are meshed with the racks, and the gear ends of the gear swing rods are meshed with the synchronous gear. According to the self-centering four-jaw chuck, the four clamping jaws can be driven to move towards the center of the shell through the arrangement of the structures such as the air cylinder, the rack and the gear swing rod, the workpiece is automatically and quickly clamped, and compared with a traditional chuck, the self-centering four-jaw chuck has the characteristics of small space, small transmission clearance, stability, high precision and the like under the matched use of the structures such as the synchronous gear and the gear swing rod.

Description

Self-centering four-jaw chuck for laser cutting

Technical Field

The utility model relates to the technical field of chucks, in particular to a laser cutting self-centering four-jaw chuck.

Background

As is well known, a laser-cut self-centering four-jaw chuck is a fixture apparatus for a laser-cutting machine. The self-centering device has a self-centering function, and can ensure that a workpiece keeps stable position and direction in the cutting process. The four-jaw chuck can clamp a workpiece so that the workpiece cannot move or deform in the cutting process;

A laser cut self-centering four-jaw chuck is typically comprised of four jaws, each having a clamping face thereon. These clamp faces may contact the surface of the workpiece to clamp the workpiece. When clamping, the four-jaw chuck can adapt to workpieces with different sizes and shapes by adjusting the clamping force.

But the existing laser cutting self-centering four-jaw chuck also has certain defects, and the existing laser cutting self-centering four-jaw chuck adopts a cylinder driving mode more simply so as to finish clamping operation of clamping jaws, so that the chuck is large in size, large in clamping stroke range and poor in stability and accuracy of the clamping jaws.

Disclosure of utility model

The utility model aims to provide a self-centering four-jaw chuck for laser cutting, which solves the problems that the existing self-centering four-jaw chuck for laser cutting adopts a cylinder driving mode to finish clamping operation of clamping jaws, so that the chuck is large in size, large in clamping stroke range and poor in stability and accuracy of the clamping jaws.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a laser cutting is from four claw chucks of centering, includes the casing, the inside wall middle part of casing is provided with synchronous gear, the inside wall of casing is provided with four cylinders that are annular array and arrange, every the flexible end of cylinder is all fixedly connected with rack, the rack contacts with the casing, the inside of casing is provided with four gear pendulum rods that are annular array and arrange, the gear end and the rack meshing of gear pendulum rod, the gear end and the synchronous gear meshing of gear pendulum rod, the surface of casing is provided with four sliders that are annular array and arrange, slider and the swing plate contact of gear pendulum rod, every the equal fixedly connected with clamping jaw of surface of slider, clamping jaw and casing contact.

Preferably, the outside of casing is fixed to be cup jointed the mount pad, four evenly distributed's mounting hole I has been seted up on the horizontal part surface of mount pad, symmetrical distribution's mounting hole II has been seted up on the vertical part surface of mount pad, through the setting of mounting hole I, mounting hole II, can fix the mount pad and use, installs the chuck.

Preferably, four guide grooves which are distributed in an annular array are formed in the surface of the shell, the guide grooves are connected with the sliding blocks in a sliding mode, and stable movement of the sliding blocks can be guaranteed through the arrangement of the guide grooves.

Preferably, the inner side wall of the clamping jaw is provided with a supporting shaft, a contact piece is arranged on the outer side of the supporting shaft, and the workpiece can be clamped and fixed through the arrangement of the contact piece.

Preferably, the gear end of the gear swing rod is in a half-gear shape, and through the design of the half-gear shape, not only can the normal use of the swing plate be ensured, but also the meshing state of the gear swing rod can be ensured.

Preferably, a sliding groove is formed in the surface of each sliding block, the sliding grooves are connected with the swing rod piece of the gear swing rod in a sliding mode, and the sliding blocks can be pushed to move through the matching of the sliding grooves and the swing rod piece.

Preferably, the whole of spout is the arc, the inner wall of spout is smooth, no burr, through the spout for the design of arc form to realize the arc motion of gear pendulum rod.

Compared with the prior art, the utility model has the following beneficial effects:

According to the self-centering four-jaw chuck, the four clamping jaws can be driven to move towards the center of the shell through the arrangement of the structures such as the air cylinder, the rack and the gear swing rod, the workpiece is automatically and quickly clamped, and compared with a traditional chuck, the self-centering four-jaw chuck has the characteristics of small space, small transmission clearance, stability, high precision and the like under the matched use of the structures such as the synchronous gear and the gear swing rod.

Drawings

FIG. 1 is a perspective view of the overall structure of the present utility model;

FIG. 2 is a front view of FIG. 1 of the present utility model;

FIG. 3 is a rear perspective view of FIG. 1 of the present utility model;

Fig. 4 is a front view of fig. 3 of the present utility model.

In the figure: 1. a gear swing rod; 2. a rack; 3. a cylinder; 4. a slide block; 5. a synchronizing gear; 6. a clamping jaw; 7. a housing.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, a self-centering four-jaw chuck for laser cutting comprises a housing 7, wherein a synchronous gear 5 is arranged in the middle of the inner side wall of the housing 7, four cylinders 3 which are distributed in an annular array are arranged on the inner side wall of the housing 7, racks 2 are fixedly connected to telescopic ends of each cylinder 3, the racks 2 are in contact with the housing 7, four gear swing rods 1 which are distributed in an annular array are arranged in the housing 7, the gear ends of the gear swing rods 1 are meshed with the racks 2, the gear ends of the gear swing rods 1 are meshed with the synchronous gear 5, four sliding blocks 4 which are distributed in an annular array are arranged on the surface of the housing 7, the sliding blocks 4 are in contact with a swinging plate of the gear swing rods 1, clamping jaws 6 are fixedly connected to the surface of each sliding block 4, and the clamping jaws 6 are in contact with the housing 7.

Referring to fig. 1, 3 and 4, the outer side of the shell 7 is fixedly sleeved with a mounting seat, the surface of the horizontal part of the mounting seat is provided with four mounting holes I which are uniformly distributed, the surface of the vertical part of the mounting seat is provided with mounting holes II which are symmetrically distributed, the mounting seat can be fixedly used through the arrangement of the mounting holes I and II, the chuck is mounted, the surface of the shell 7 is provided with four guide grooves which are distributed in an annular array, the guide grooves are slidably connected with the sliding block 4, the stable movement of the sliding block 4 can be ensured through the arrangement of the guide grooves, the inner side wall of the clamping jaw 6 is provided with a supporting shaft, the outer side of the supporting shaft is provided with a contact piece, and the workpiece can be clamped and fixed through the arrangement of the contact piece.

Referring to fig. 1 and 2, the gear end of the gear swing rod 1 is in a half gear shape, through the design of the half gear shape, not only the normal use of the swing plate can be ensured, but also the meshing state of the gear swing rod 1 can be ensured, the surface of each sliding block 4 is provided with a sliding groove, the sliding groove is in sliding connection with the swing rod piece of the gear swing rod 1, the sliding blocks 4 can be pushed to move through the matched use of the sliding grooves and the swing rod piece, the whole sliding groove is arc-shaped, the inner wall of the sliding groove is smooth and free of burrs, and the arc-shaped movement of the gear swing rod 1 is realized through the design of the arc-shaped sliding groove.

The specific implementation process of the utility model is as follows: when the self-centering four-jaw chuck for laser cutting needs to be used, the rack 2 is pushed through the telescopic action of the air cylinder 3, under the meshing relationship, and the arrangement of the sliding grooves is matched, so that the rack 2 and the gear swing rod 1 can swing up and down in an arc shape, the gear swing rod 1 and the sliding block 4 of the clamping jaw 6 are connected and matched to slide up and down in the guide groove, the action of opening and clamping is achieved, the gear swing rod 1 is meshed with the synchronous gear 5 at the same time, the action synchronization and the precision of the upper gear swing rod 1 and the lower gear swing rod 1 can be guaranteed, and the clamping force is changed by the magnitude of external air pressure, so that materials with different thicknesses can be clamped without deformation.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A laser cutting self-centering four-jaw chuck comprising a housing (7), characterized in that: the novel lifting mechanism is characterized in that a synchronous gear (5) is arranged in the middle of the inner side wall of the shell (7), four cylinders (3) which are distributed in an annular array are arranged on the inner side wall of the shell (7), each cylinder (3) is fixedly connected with a rack (2) at the telescopic end, each rack (2) is in contact with the shell (7), four gear swinging rods (1) which are distributed in an annular array are arranged inside the shell (7), the gear ends of the gear swinging rods (1) are meshed with the racks (2), the gear ends of the gear swinging rods (1) are meshed with the synchronous gear (5), four sliding blocks (4) which are distributed in an annular array are arranged on the surface of the shell (7), each sliding block (4) is in contact with a swinging plate of the gear swinging rods (1), clamping jaw (6) are fixedly connected to the surface of each sliding block (4), and the clamping jaw (6) is in contact with the shell (7).

2. A laser cut self-centering four-jaw chuck as claimed in claim 1, wherein: the outer side of the shell (7) is fixedly sleeved with a mounting seat, the surface of the horizontal part of the mounting seat is provided with four mounting holes I which are uniformly distributed, and the surface of the vertical part of the mounting seat is provided with mounting holes II which are symmetrically distributed.

3. A laser cut self-centering four-jaw chuck as claimed in claim 1, wherein: four guide grooves which are distributed in an annular array are formed in the surface of the shell (7), and the guide grooves are connected with the sliding blocks (4) in a sliding mode.

4. A laser cut self-centering four-jaw chuck as claimed in claim 1, wherein: the inner side wall of the clamping jaw (6) is provided with a supporting shaft, and the outer side of the supporting shaft is provided with a contact piece.

5. A laser cut self-centering four-jaw chuck as claimed in claim 1, wherein: the gear end of the gear swing rod (1) is in a half-gear shape.

6. A laser cut self-centering four-jaw chuck as claimed in claim 1, wherein: the surface of each sliding block (4) is provided with a sliding groove, and the sliding grooves are in sliding connection with the swing rod piece of the gear swing rod (1).

7. The laser cut self-centering four-jaw chuck of claim 6, wherein: the whole of spout is the arc, the inner wall of spout is smooth, no burr.