CN218926297U - Chuck positioning device on numerical control machine tool - Google Patents

Abstract

The utility model discloses a chuck positioning device on a numerical control machine tool, which comprises a chuck shell, wherein a transmission disc is arranged in the chuck shell, three clamping claw parts are arranged on the transmission disc, the clamping claw parts extend out of the chuck shell, a movable area is arranged on the chuck shell, clamping areas are formed among the three clamping claw parts, a tooth clamping belt is arranged at the bottom of the transmission disc, a worm is meshed on the tooth clamping belt, three sliding grooves are arranged on the transmission disc, the sliding grooves are obliquely arranged from the center end of the transmission disc towards the edge, sliding blocks matched with the sliding grooves are arranged at the bottom of the clamping claw parts, a telescopic abutting block is further arranged at the front end of the clamping claw parts, when the worm drives the transmission disc to rotate anticlockwise, the clamping claw parts move towards the center end of the transmission disc along the sliding grooves, the clamping areas are in a reduced state, and when the worm drives the transmission disc to rotate clockwise, the clamping claw parts move towards the edge end of the transmission disc along the sliding grooves, and the clamping areas are in an expanded state. The utility model has the advantages of strong clamping tightness on workpieces and high working stability.

Description

Chuck positioning device on numerical control machine tool

Technical Field

The utility model relates to the technical field of numerical control equipment, in particular to a chuck positioning device on a numerical control machine tool.

Background

The machine tool is basic equipment for processing and forming workpieces, and different forms of machine tools are often extended according to different processing requirements, for example, the processing treatment of the workpieces is realized through a milling machine. The pneumatic chuck is often applied to a milling machine system with higher automation degree, and rapid machining is realized by automatically clamping a workpiece.

The patent with the publication number of CN210549264U discloses an air chuck, wherein a spring is arranged between the bottom wall of a sliding plate and a guide rail, the spring drives a claw to move towards the direction of a clamping area, an air cavity is arranged in a rotary plate, an air inlet communicated with the air cavity is arranged on the rotary plate, a movable piece is arranged in the air cavity, a concave cavity is arranged on the movable piece, a ball is fixed in the concave cavity, the ball extends out of the concave cavity, the claw comprises a clamping seat and a claw head, an inclined surface is arranged on the clamping seat, an opening communicated with the air cavity is arranged at the position of the rotary plate corresponding to the clamping seat, a movable block in clearance fit with the movable piece is arranged in the air cavity, one end of the movable block is penetrated out by the opening, a wedge surface is arranged on the movable block, the wedge surface on the movable block is abutted against the inclined surface on the clamping seat, and a groove for embedding the ball is arranged on one end of the movable block close to the movable piece. The clamping jaw is clamped by adopting the driving force of the spring to the clamping jaw when clamping a workpiece, and the spring is easy to fatigue and damage under the condition of long-term work, so that the workpiece cannot be clamped and fixed well, and the workpiece is inaccurate in operation position, poor in stability and directly affects the milling operation of the whole equipment when milling.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide the chuck positioning device on the numerical control machine tool, which has high working quality and good stability.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a chuck positioner on digit control machine tool, includes the chuck casing, is equipped with the driving disk in the chuck casing, be equipped with three sliding fit's claw portion on the driving disk, claw portion extends to outside the chuck casing, and is equipped with the movable zone that supplies claw portion motion on the chuck casing, forms the clamping area between three claw portion, the bottom of driving disk is equipped with the latch area, the meshing has the worm on the latch area, drives driving disk rotation through the motion of worm, be equipped with three spout on the driving disk, the spout is set up towards the edge slope by the centre of a circle end of driving disk, the bottom of claw portion is equipped with the slider with the spout adaptation, still is equipped with telescopic butt piece at the front end of claw portion, when the worm drives driving disk anticlockwise rotation, claw portion moves towards the centre of a circle end of driving disk along the spout, the clamping area is the shrink state, when the worm drives driving disk clockwise rotation, claw portion moves towards the edge end of driving disk along the spout, the clamping area is the expansion state.

The utility model is further provided with: the front end part of the clamping claw part is provided with a T-shaped groove, the supporting block is provided with a T-shaped block, the T-shaped block is assembled in the T-shaped groove, and an elastic piece is arranged between the T-shaped block and the bottom wall of the T-shaped groove.

The utility model is further provided with: the cross section of the abutting block is provided with a T-shaped block end, and gradually decreases towards the other end.

The utility model is further provided with: the end part of the worm is provided with a straight slot, and the straight slot is provided with a detachable handle.

Through adopting above-mentioned technical scheme, jack catch portion is when the motion, by worm and driving disk cooperation, realizes the motion of jack catch portion in the spout, plays the effect of diminishing or expanding the clamping area, can last effectual carrying out the centre gripping to the work piece fixedly, promotes the stability of work. Meanwhile, the telescopic supporting blocks are arranged at the end parts of the clamping parts, so that the clamping and firm shaping of the clamping parts on the workpiece are further enhanced. The setting of detachable handle can realize the motion of claw portion through operating handle under the circumstances of sudden outage, the emergency handling of being convenient for when trouble.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of the present utility model;

FIG. 2 is a second schematic diagram of the structure of the present utility model;

FIG. 3 is a third schematic diagram of the structure of the present utility model;

FIG. 4 is a schematic diagram of a fourth embodiment of the present utility model;

FIG. 5 is a schematic diagram of a drive plate configuration;

FIG. 6 is a schematic view of the worm and handle arrangement;

fig. 7 is an enlarged view of fig. 1 at a.

1. A chuck housing; 2. a drive plate; 20. a toothed belt; 21. a worm; 22. a straight slot; 23. a chute; 3. a clamping claw part; 30. a slide block; 31. abutting blocks; 32. a T-shaped block; 33. a T-shaped groove; 34. an elastic member; 35. a clamping area; 4. a handle.

Detailed Description

Embodiments of the present utility model will be further described with reference to fig. 1 to 7. The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure for the purpose of understanding and reading by those skilled in the art, and are not intended to limit the scope of the utility model, so that any structural modifications, proportional changes, or dimensional adjustments should not be construed as essential to the technology, but should still fall within the scope of the present disclosure without affecting the efficacy or achievement of the present utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.

The utility model provides a chuck positioner on digit control machine tool, includes chuck housing 1, is equipped with driving disk 2 in chuck housing 1, be equipped with three sliding fit's jack catch portion 3 on the driving disk 2, jack catch portion 3 extends to chuck housing 1 outside, and is equipped with the movable zone that supplies jack catch portion 3 to move on the chuck housing 1, forms clamping area 35 between three jack catch portion 3, the bottom of driving disk 2 is equipped with latch area 20, the meshing has worm 21 on the latch area 20, through the motion of worm 21, drives driving disk 2 rotation motion, be equipped with three spout 23 on the driving disk 2, spout 23 is set up by the centre of a circle end slope towards the edge of driving disk 2, the bottom of jack catch portion 3 is equipped with the slider 30 with spout 23 adaptation, still is equipped with telescopic supporting piece 31 at the front end of jack catch portion 3, when worm 21 drives driving disk 2 anticlockwise rotation, jack catch portion 3 moves towards driving disk 2's centre of a circle end along spout 23, clamping area 35 is the shrink state, when worm 21 drives driving disk 2 clockwise rotation, 3 moves towards driving disk 2's centre of a circle end along spout 23. The front end of the claw part 3 is provided with a T-shaped groove 33, the supporting block 31 is provided with a T-shaped block 32, the T-shaped block 32 is assembled in the T-shaped groove 33, and an elastic piece 34 is arranged between the T-shaped block 32 and the bottom wall of the T-shaped groove 33. The cross section of the abutting block 31 is provided with a T-shaped block 32 end, and gradually decreases towards the other end. The end of the worm 21 is provided with a straight slot 22, and the straight slot 22 is provided with a detachable handle 4.

Working principle: the worm 21 drives the driving disc 2 to move anticlockwise, the clamping claw part 3 moves towards the center end of the driving disc 2, the clamping area 35 is reduced, and the workpiece is fixed in the clamping area 35, so that the processing is facilitated. The claw portion 3 is provided with a telescopic elastic abutment 31, which can improve the clamping force to the workpiece. The supporting block 31 is telescopic through the elastic piece 34, even if the elastic piece 34 loses elasticity, the supporting block 31 can tightly attach to the inner wall of the T-shaped groove 33 through the displacement of the T-shaped block 32 in the T-shaped groove 33 when tightly abutting against the workpiece, the clamping and fixing of the workpiece can still be realized, and the work of the clamping part 3 is not influenced. When the workpiece is required to be loosened, the worm 21 drives the transmission disc 2 to rotate clockwise. The handle 4 is provided with the linear inserting block, the operating handle 4 drives the clamping part 3 to move through the matching of the inserting block and the linear slot 22 on the worm 21, and the device can be manually operated in emergency such as sudden power failure, so that the practicability of the device is improved.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (4)

1. The utility model provides a chuck positioner on digit control machine tool, includes the chuck casing, is equipped with the driving disk in the chuck casing, be equipped with three sliding fit's claw portion on the driving disk, claw portion extends to outside the chuck casing, and is equipped with the movable zone that supplies claw portion motion on the chuck casing, forms clamping area, its characterized in that between three claw portion: the bottom of driving disk is equipped with the latch area, the meshing has the worm on the latch area, through the motion of worm, drives driving disk rotary motion, be equipped with three spouts on the driving disk, the spout is set up towards the edge slope by the centre of a circle end of driving disk, the bottom of claw portion is equipped with the slider with the spout adaptation, still is equipped with telescopic support the piece at the front end of claw portion, when the worm drives the driving disk anticlockwise rotation, claw portion moves towards the centre of a circle end of driving disk along the spout, the clamping area is the shrink state, when the worm drives the driving disk clockwise rotation, claw portion moves towards the marginal end of driving disk along the spout, the clamping area is the expansion state.

2. The chuck positioning device on a numerical control machine according to claim 1, wherein: the front end part of the clamping claw part is provided with a T-shaped groove, the supporting block is provided with a T-shaped block, the T-shaped block is assembled in the T-shaped groove, and an elastic piece is arranged between the T-shaped block and the bottom wall of the T-shaped groove.

3. The chuck positioning device on a numerical control machine according to claim 2, wherein: the cross section of the abutting block is provided with a T-shaped block end, and gradually decreases towards the other end.

4. The chuck positioning device on a numerical control machine according to claim 1, wherein: the end part of the worm is provided with a straight slot, and the straight slot is provided with a detachable handle.

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