CN102962698A - Rocker arm limiting device - Google Patents

Abstract

The invention discloses a rocker arm limiting device. The device comprises a base, a limiting device and a V-shaped block with a strip-shaped hole, wherein a chute is formed on the base; the V-shaped block is arranged in the chute; a positioning pin running through the strip-shaped hole is fixedly arranged on the base; a return spring is arranged between the positioning pin and the side wall of the strip-shaped hole; the limiting device comprises a rotating disk and a rocker arm; the rotating disk is hinged with the base; the rocker arm is fixedly arranged on the rotating disk; a limiting block is arranged on the rotating disk; a limiting groove is formed on the outer side of the V-shaped block; and the groove wall of the limiting groove is propped against the limiting block. The invention overcomes the defect that a clamp with a return spring can injure an operator easily during resetting in the prior art and provides an improved positioning device which can limit the resetting of the clamping so as to guarantee the safety of the operator.

Description

A kind of rocking arm stopping means

Technical field

The invention belongs to positioning device for mechanical machining, particularly a kind of rocking arm stopping means.

Background technology

During machining, the part to be processed profile, size is all different, usually all be for processing parts, make separately positioner, but it is similar to face external form, the workpiece that size is approximate, when also adopting this method, will seem there is no need the waste material so to do, a kind of anchor clamps had been improved afterwards, inner mounting spring although solved the elastic force that utilizes spring, has strengthened the size that positioner clamps work piece, but a new problem appears, sometimes spring-compressed is excessive, and after work piece took out, anchor clamps were subject to the impact of elastic potential energy of the spring, answer speed is very fast, wounds easily the operator; And when needing certain workpiece of processing in enormous quantities, these type of anchor clamps also need to reorientate, waste process time.

Summary of the invention

Technical problem to be solved by this invention is the defective of wounding easily the operator for the anchor clamps that have back-moving spring in the prior art when resetting, and the positioner after a kind of improve is provided, and can limit the safety that can guarantee the operator to resetting of anchor clamps

In order to solve the problems of the technologies described above, the invention provides following technical scheme: a kind of rocking arm stopping means, comprise pedestal, stopping means and offer the V-block of bar hole, offer chute on the pedestal, V-block is installed in the chute, be installed with an alignment pin that runs through bar hole on the described pedestal, be provided with back-moving spring between alignment pin and the bar hole sidewall;

Stopping means comprises the rolling disc and the rocking arm that be installed in rolling disc on hinged with pedestal, and rolling disc is provided with limited block;

Wherein, the V-block lateral surface offers stopper slot, and cell wall and the limited block of stopper slot offset.

Adopt a kind of rocking arm stopping means of technical solution of the present invention, the structure of V-block so that its can the clamping various shapes workpiece; V-block is installed in the chute of pedestal and along chute and moves, and is because V-block is moved along chute by workpiece extruding meeting; The bar hole that V-block is offered, be installed with an alignment pin that runs through bar hole on the pedestal, be provided with back-moving spring between alignment pin and the bar hole sidewall, because V-block can move along chute after being squeezed always, this moment, alignment pin can play the effect that the restriction V-block moves, and back-moving spring can make V-block not reset when being subject to the workpiece extruding; The operator can be by the rocking arm in the operation stopping means, then drive rolling disc, and then driving the limited block of rolling disc, the stopper slot of offering on limited block and the V-block cooperates, and can control V-block in the speed that is not subject to whether resetting and resetting when workpiece pushes.

 

The process of clamping workpiece of the present invention is as follows:

During operation, work piece is put into the V-block location, V-block is subject to the extruding of workpiece, in the enterprising line slip of chute, makes simultaneously back-moving spring stressed, elastic potential energy by spring, V-block can carry out clamping to workpiece, then adjusts rocking arm, and rocking arm drives rolling disc, so that the cell wall of the limited block on the rolling disc and the stopper slot above the V-block offsets, and then V-block is limited;

After removing workpiece, the operator can pass through control rocking arm and rolling disc, and then the control limited block, can be so that V-block temporarily can not reset.

In the time of need to resetting, by adjusting rocking arm, make and adjust revolving rocker arm to reduction point, V-block is resetted fully.

The beneficial effect that the present invention has is as follows: after 1, workpiece removed, the operator can control anchor clamps by rocking arm, so that anchor clamps can not reset the operator's that injures the danger because anchor clamps reset too fast with regard to having avoided immediately; 2, the mobile effect of anchor clamps is to drive rolling disc, rolling disc power transmission to anchor clamps by rocking arm, replaced chuck body band spring in the prior art, directly by manually controlling the defective of chuck body, inconvenient operation, can be so that operator no longer be directly controlled chuck body by the operation rocking arm, so that more convenient operation, simultaneously rocking arm is used lever principle instead, operates lightly, quick, has alleviated operator's labour intensity.

Description of drawings

Fig. 1 is structural representation of the present invention.

The specific embodiment

Shown in Fig. 1, the present invention is a kind of rocking arm stopping means, comprise pedestal 1, stopping means and offer the V-block 2 of bar hole 3, offer chute on the pedestal 1, V-block 2 is installed in the chute, be installed with an alignment pin 4 that runs through bar hole 3 on the described pedestal 1, be provided with back-moving spring 5 between alignment pin 4 and bar hole 3 sidewalls;

Stopping means comprises with the hinged rolling disc 8 of pedestal 1 and is installed in rocking arm 7 on the rolling disc 8 that rolling disc 8 is provided with limited block 9;

Wherein, also offer stopper slot 6 on described V-block 2 lateral surfaces, the cell wall of stopper slot 6 and limited block 9 offset.

During operation, work piece is put into V-block 2 location, V-block 2 is subject to the extruding of workpiece, in the enterprising line slip of chute, make simultaneously the back-moving spring 5 that is located between alignment pin 4 and bar hole 3 sidewalls stressed, by the elastic potential energy of back-moving spring 5, V-block 2 can carry out clamping to workpiece, and alignment pin 4 can also limit the movement of bar hole 3; Then adjust rocking arm 7, rocking arm 7 drives rolling discs 8, so that the cell wall of the limited block 9 on the rolling disc 8 and stopper slot 6 above the V-block 2 offsets, and then V-block 2 is limited;

After removing workpiece, the operator can avoid occuring because remove workpiece by control rocking arm 7 and rolling disc 8, and V-block 2 is subject to the elastic force direct reduction of spring, causes V-block 2 to wound operator's situation; Rolling disc 8 and then control limited block 9, limited block 9 drives V-block 2, resets to gradually alignment pin 4 by the bar hole 3 of restriction V-block 2, resets thereby reach the restriction V-block, so that V-block 2 resets fully.

Above-described only is preferred embodiment of the present invention; should be understood that; for a person skilled in the art; under the prerequisite that does not break away from structure of the present invention; can also make some distortion and improvement; these also should be considered as protection scope of the present invention, and these can not affect effect of the invention process and practical applicability.

Claims (1)

1. rocking arm stopping means, it is characterized in that: comprise pedestal, stopping means and offer the V-block of bar hole that offer chute on the pedestal, V-block is installed in the chute, be installed with the alignment pin that runs through bar hole on the described pedestal, be provided with back-moving spring between alignment pin and the bar hole sidewall;

Stopping means comprises the rolling disc and the rocking arm that be installed in rolling disc on hinged with pedestal, and rolling disc is provided with limited block;

The V-block lateral surface offers stopper slot, and cell wall and the limited block of stopper slot offset.