CN210125897U

CN210125897U - Pushing structure of clamping mechanism

Info

Publication number: CN210125897U
Application number: CN201920797404.6U
Authority: CN
Inventors: 庄旭彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-03-06
Anticipated expiration: 2029-05-30

Abstract

The utility model relates to a pushing structure of a clamping mechanism, which mainly comprises a work carrier and a chuck, wherein the bottom surface of the work carrier is provided with a clamping rod which is embedded into the chuck, a piston seat is arranged in the chuck, the center of the piston seat is provided with a movable seat which can be embedded by the clamping rod, the bottom of the piston seat is provided with a base body corresponding to the movable seat, the base body is provided with a boss, and the boss can provide a pushing force when the piston seat rises to release the clamping rod of the work carrier, so that the work carrier can be smoothly separated from the chuck; therefore, the effect that the auxiliary working carrier is smoothly separated and no noise is generated is achieved.

Description

Pushing structure of clamping mechanism

Technical Field

The present invention relates to a pushing structure of a clamping mechanism, and more particularly to a pushing structure capable of assisting a work stage to smoothly break away from the work stage without generating noise.

Background

It is important for semi-automatic or fully automatic machining whether the carrier with the workpiece is properly clamped in position on the chuck or completely released. For example, if the carrier is not correctly positioned on the chuck, there is a risk that the position of the workpiece may shift during machining, which may cause inaccurate dimensional accuracy of the workpiece, and of course, may cause serious damage.

The clamping mechanism of this type, as in taiwan patent publication No. I580514 "floating clamping mechanism" previously filed by the designer, is provided with a work carrier and a chuck, wherein the bottom surface of the work carrier is provided with clamping rods, the chuck can be connected with the clamping rods of the work carrier in a releasing or clamping action, wherein the chuck comprises a base with a central actuating chamber, the open end of the base is locked with a top seat, the actuating chamber of the base is provided with a piston seat, a plurality of elastic members for supporting the piston seat are annularly arranged between the piston seat and the top seat, the center of the piston seat is provided with a movable seat, the outer side of the top of the movable seat is provided with an annular inclined surface and limited at the opening of the top seat, the periphery of the movable seat is provided with a movable clamping member for horizontal displacement, and the bottom of the piston seat is provided with a base body; therefore, the clamping rod of the work carrier is embedded into the movable seat, the clamping rod is clamped by moving the clamping piece inwards, the movable seat is enabled to float upwards, the movable seat is pushed inwards to stably clamp the clamping rod under the action of the annular inclined surface of the movable seat and the opening of the top seat, and the zero-point clamping effect of the work carrier and the chuck is achieved.

According to the structure, after clamping is completed, a stable clamping processing effect can be provided, and after the processing is completed, input pressure pushes the piston seat to ascend and release clamping, so that the clamping rod of the working carrier can be separated from the clamping piece on the movable seat. However, when the work carrier and the chuck of the clamping mechanism are clamped together, the two corresponding end surfaces are flush with each other, so that the two end surfaces are in a vacuum fit state, and when the piston seat is lifted up and released for clamping, the adsorption force of the two generates separation noise, which makes the clamping mechanism somewhat unsatisfactory in use.

At present, designers especially take rich design development and practical manufacturing experience of the related industry for many years, and provide a pushing structure of a clamping mechanism so as to achieve the purpose of better practical value.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a pushing structure of a clamping mechanism, particularly to a pushing structure capable of assisting a work-loading platform to be smoothly separated without generating noise.

In order to achieve the above object, the present invention provides a pushing structure of a clamping mechanism, which comprises a work carrier, wherein a clamping rod is arranged on the bottom surface of the work carrier, the clamping rod is embedded into a chuck, a piston seat is arranged in the chuck, a through hole is arranged in the center of the piston seat, a base body for sealing the through hole is arranged at the bottom of the piston seat, a movable seat is arranged in the through hole, the clamping rod is embedded into the center of the movable seat, clamping members for clamping the clamping rod are arranged at the periphery of the movable seat, a plurality of elastic members are arranged around the piston seat, the elastic members can assist in supporting the piston seat for displacement, the clamping rod of the work carrier can be released by the ascending of the piston seat, the clamping rod of the work carrier can be clamped by the descending of the piston seat, a through hole is arranged at the bottom of the center of the movable seat, a boss is arranged at the position, corresponding to the through hole, of the base body and can push the clamping rod to move upwards.

The pushing structure of the clamping mechanism of the utility model can provide a pushing force when the piston seat rises to release the clamping rod of the work carrier, so that the work carrier can be smoothly separated from the chuck; therefore, the effect that the auxiliary working carrier is smoothly separated and no noise is generated is achieved.

The preferred embodiment of the pushing structure of the clamping mechanism as described above, wherein the piston seat and the base body are two independent components.

The preferred embodiment of the pushing structure of the clamping mechanism as described above, wherein the piston seat and the base body are an integral structure.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:

FIG. 1: the cross-sectional view of the clamping state of the utility model is schematic;

FIG. 2: the cross-sectional view of the utility model is schematically shown in the relaxed state;

FIG. 3: the utility model discloses a schematic diagram is cut away from state.

The reference numbers illustrate:

1 work carrier

11 clamping rod

2 clamping head

21 piston seat

211 through hole

22 base body

221 boss

23 movable seat

231 through hole

24 clamping part

25 elastic member

Detailed Description

To make the technical contents and objects of the present invention and the functions achieved thereby more complete and clear, reference is now made to the following detailed description, taken in conjunction with the accompanying drawings and in the accompanying drawings, in which:

firstly, please refer to fig. 1 to 3, which are schematic cross-sectional views of a pushing structure of a clamping mechanism of the present invention, mainly comprising a work stage 1, a clamping rod 11 disposed on a bottom surface of the work stage 1, the clamping rod 11 embedded in a chuck 2, a piston seat 21 disposed in the chuck 2, a through hole 211 disposed in a center of the piston seat 21, a base body 22 disposed at a bottom of the piston seat 2, the base body 22 sealing the through hole 211, a movable seat 23 disposed in the through hole 211, a clamping member 24 disposed at a periphery of the movable seat 23 for clamping the clamping rod 11, a plurality of elastic members 25 annularly disposed around the piston seat 21, the elastic members 25 assisting in supporting the piston seat 21 to move, and an ascending of the piston seat 21 releasing the clamping rod 11 of the work stage, the descending of the piston seat 21 can clamp the clamping rod 11 of the work carrier, wherein:

a through hole 231 is formed at the bottom of the center of the movable seat 23, a boss 221 is formed at the position of the base body 22 corresponding to the through hole 231, and the boss 221 can correspondingly push the clamping rod 11 to move upwards.

Referring to fig. 1 to 3, the clamping member 24 of the present invention may be a slider or a ball, and the ball is used as the clamping member 24 in the drawings; when the working carrier 1 is not yet inserted into the chuck 2, the piston seat 21 is input into the inner space of the chuck 2 through a power (hydraulic pressure) to make the piston seat 21 compress the elastic member 25 upward to be in a propping state (i.e. normally open state). When the chuck 2 is embedded with the clamping rod 11 of the work carrier 1, the power in the chuck 2 is released, and the elastic part 25 on the piston seat 21 stretches the elastic force to support and push the piston seat 21 to move downwards, when the piston seat 21 moves downwards, the piston seat 21 can support the clamping part 24 to move towards the center and clamp the clamping rod 11, so that the movable seat 23 can be pulled downwards to clamp the clamping rod 11, and simultaneously, the bottom surface of the work carrier 1 and the top surface of the chuck 2 can be closely attached to each other, thereby achieving the zero-point clamping efficacy of the work carrier 1 and the chuck 2.

Then, when the machining is completed and the work carrier 1 is separated from the chuck 2, a power is input into the chuck 2 to raise the piston seat 21 to compress the elastic member 25 and push the movable seat 23 to slightly raise, so that the clamping member 24 is displaced outward and separated from the clamping rod 11, and simultaneously, the piston seat 21 is raised to drive the base body 22 to be raised and displaced, and the boss 221 of the base body 22 pushes the clamping rod 11, so that the bottom surface of the work carrier 1 is separated from the top surface of the chuck 2, and the close contact state is released, so that the work carrier 1 can be smoothly separated from the chuck.

Further, the piston seat 21 and the base body 22 may be two independent components (as described above) to be synchronously coupled, or the piston seat 21 and the base body 22 may be an integral structure.

Through the above, can learn from the constitution of the utility model discloses structure and use the implementation explanation, have following advantage:

1. the utility model discloses a fixture's top pushes away the structure, with the piston seat rise and let the boss provide a jacking force in the bottom of supporting rod, makes its work carrier can break away from the chuck terminal surface of close subsides smoothly to reach the efficiency that supplementary work carrier breaks away from and does not produce the noise.

2. The utility model discloses a fixture's top pushes up the structure, rises through the piston seat and takes ejecting mechanism in succession, need not to set up the ejection apparatus who needs power in addition, reaches to accomplish ejecting efficiency with simple structure, can effectively save the cost and accord with economic benefits's demand.

The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention. Moreover, it should be noted that the components of the present invention are not limited to the above-mentioned integral application, and various technical features described in the present invention can be selected to be used alone or in combination according to actual needs, so that the present invention naturally covers other combinations and specific applications related to the invention of the present invention.

Claims

1. A pushing structure of a clamping mechanism is provided with a work carrier, a clamping rod is arranged on the bottom surface of the work carrier and can be embedded into a chuck, a piston seat is arranged in the chuck, a through hole is formed in the center of the piston seat, a base body for sealing the through hole is arranged at the bottom of the piston seat, a movable seat is arranged in the through hole, the center of the movable seat is used for embedding the clamping rod, clamping pieces for clamping the clamping rod are arranged on the periphery of the movable seat, a plurality of elastic pieces are annularly arranged around the piston seat and can assist in supporting the piston seat to move, the clamping rod of the work carrier can be released when the piston seat rises, and the clamping rod of the work carrier can be clamped when the piston seat falls, and the clamping rod of the work carrier is characterized in that:

the clamping rod is arranged on the base body, and the clamping rod is arranged on the base body and can move upwards.

2. The jacking structure of claim 1, wherein said piston seat is integrally formed with said base body.