CN203062575U

CN203062575U - Symmetric clamping device

Info

Publication number: CN203062575U
Application number: CN 201220671212
Authority: CN
Inventors: 姜静慧
Original assignee: Chongqing Tianzhidao Technology Development Co Ltd
Current assignee: Chongqing Tianzhidao Technology Development Co Ltd
Priority date: 2012-12-09
Filing date: 2012-12-09
Publication date: 2013-07-17
Anticipated expiration: 2022-12-09

Abstract

The utility model relates to a clamping device, in particular to a symmetric clamping device. The symmetric clamping device comprises a fixture body, clamping jaws used for pressing a workpiece, connecting pieces, transmission bars, a pushing rod which is used as a force application device and a spring, wherein one ends of the clamping jaws are used for pressing the workpiece, the other ends of the clamping jaws and the end portions of the connecting pieces are fixedly connected on the fixture body in a hinged mode, the other ends of the connecting pieces are connected with the end portions of the transmission bars in a hinged mode, the other ends of the transmission bars penetrate through inclined holes and are connected with the end portion of the pushing rod in a hinged mode, the inclined holes are formed in the fixture body, the other end of the pushing rod penetrates through a horizontal hole formed in the fixture body and the spring in sequence, the spring can drive the pushing rod, the clamping jaws are enabled to be maintained in a clamping tendency, the clamping jaws, the connecting pieces and the transmission bars take the pushing rod as a symmetrical axis and are arranged to be two sets in an up-and-down mode, and the hole diameters of the inclined holes are larger than the diameters of the transmission bars. By the utilization of the structure, the symmetric clamping device has the advantages of being automatic in clamping, simple in structure and low in cost.

Description

The symmetry clamping device

Technical field

The utility model relates to a kind of clamping device, is specifically related to a kind of symmetrical clamping device.

Background technology

Nowadays clamping device is used to a plurality of fields, comprise machinery, carpenter etc., different clamping devices can be applicable to different process requirements, and clamping device is mainly used in clamping and the location of workpiece, so that workpiece obvious displacement does not take place adding man-hour, thereby improve machining accuracy.

At the small-scale workshops scene, because the restriction of cost, the general ingenious effect of utilizing compound modes such as lever, spring, pulley, cam, handle to reach clamping work pieces of clamping device, though solved the clamping problem in the process to a certain extent, but because the locking process is the manually-operated apparatus, the many human errors that can't avoid so bring.

The utility model content

The technical problems to be solved in the utility model provides a kind of automatic clamping, simple in structure and symmetrical clamping device that cost is low.

In order to solve the problems of the technologies described above, the utility model provides a kind of symmetrical clamping device, include chuck body, the jaw that is used for workpiece pressing, brace, drive link, push rod as force application apparatus, spring, wherein, jaw one end is used for workpiece pressing, the other end then is fixedly hinged on chuck body with the end of brace, the other end of brace is then hinged with the end of drive link, the drive link other end passes the inclined hole that is arranged on the chuck body, and it is hinged with the end of push rod, the other end of push rod passes lateral aperture and the spring that is arranged on the chuck body successively, this spring can drive push rod, make jaw keep clamping trend, described jaw, for the symmetry axis upper and lower settings has two groups, the aperture of described inclined hole is greater than the drive link diameter with the push rod for brace and drive link.

Adopt a kind of symmetrical clamping device of technique scheme to have following advantage: 1, owing to set up spring at push rod, spring locking replaces artificial locking, and more time saving and energy saving, clamping process belongs to automatic clamping, has reduced human error; 2, the transmission of having used lever merely owing to symmetrical clamping device, and the setting of symmetric mode, therefore simple in structure and with low cost.

As preferred version, consider the elastic fatigue of spring, after long-time the use, in order better to reach the clamping effect, described push rod is provided with the nut for the regulating spring degree of tightness.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment symmetry clamping device.

The specific embodiment

Below in conjunction with drawings and Examples technical solutions of the utility model are further specified:

As shown in Figure 1, the utility model provides a kind of symmetrical clamping device, include chuck body 1, the jaw 2 that is used for workpiece pressing, brace 3, drive link 4, push rod 5 as force application apparatus, spring 6, wherein, jaw 2 one ends are used for workpiece pressing, the other end then is fixedly hinged on chuck body 1 with the end of brace 3, the other end of brace 3 is then hinged with the end of drive link 4, drive link 4 other ends pass the inclined hole that is arranged on the chuck body 1, and it is hinged with the end of push rod 5, the other end of push rod 5 passes lateral aperture and the spring 6 that is arranged on the chuck body 1 successively, this spring 6 can drive push rod 5, make jaw 2 keep clamping trend, push rod 5 is provided with the nut 7 for regulating spring 6 degrees of tightness, jaw 2, brace 3 and drive link 4 are that the symmetry axis upper and lower settings has two groups with push rod 5, and the aperture of inclined hole is greater than drive link 4 diameters.

Concrete using method is: horizontal pushing pressure push rod 5, and under the drive of two drive links 4, two jaws 2 rotate simultaneously, can put into workpiece this moment, unclamp push rod 5 then, because the elastic force effect of spring 6 drives push rod 5 motion in the other direction, transmission through drive link 4, two jaw 2 opposite spins, thereby automatic clamping work pieces, in addition, also can rotate the elastic force that nut 7 is used for regulating spring 6 at any time according to the demand of clamping force.

Above-described only is preferred embodiment of the present utility model, should be pointed out that for a person skilled in the art, under the prerequisite that does not break away from the utility model structure, can also make some distortion and improvement, these can not influence effect and practical applicability that the utility model is implemented.

Claims

1. symmetrical clamping device, include chuck body, the jaw that is used for workpiece pressing, brace, drive link, push rod as force application apparatus, spring, wherein, jaw one end is used for workpiece pressing, the other end then is fixedly hinged on chuck body with the end of brace, the other end of brace is then hinged with the end of drive link, the drive link other end passes the inclined hole that is arranged on the chuck body, and it is hinged with the end of push rod, the other end of push rod passes lateral aperture and the spring that is arranged on the chuck body successively, this spring can drive push rod, make jaw keep clamping trend, it is characterized in that: described jaw, for the symmetry axis upper and lower settings has two groups, the aperture of described inclined hole is greater than the drive link diameter with the push rod for brace and drive link.

2. symmetrical clamping device according to claim 1, it is characterized in that: described push rod is provided with the nut for the regulating spring degree of tightness.