CN210172340U - Sliding block mechanism and stamping and bending die thereof - Google Patents

Abstract

The utility model relates to a slider mechanism, it pushes away a, slider and drives above-mentioned slider and carry out the swing piece that removes for the lower mould along left right direction including the braking. The braking pushing piece is fixed on the upper die base and penetrates through the material pressing plate. The upper end of the swinging piece is hinged to the lower die, and the lower end of the swinging piece is provided with a propping bending part. The top bending part is right corresponding to the left side wall of the sliding block. In addition, a torque application extension portion is provided on the side wall of the oscillating piece. When going up the mould and moving downwards for the lower mould, at first, the flitch is compressed tightly to the pressure flitch, and the upper die base continues to push down afterwards to make the swing piece swing around its pin joint along anticlockwise under the effect of braking ejector pad top thrust, and then lean on the portion of bending through the top and promote the slider and slide right, accomplish the flitch and bend. Therefore, on the premise of not changing the original sizes of the braking pushing piece and the sliding block, the action stroke of the sliding block is increased by adding the swinging piece, and the amplification factor can reach 3 times.

Description

Sliding block mechanism and stamping and bending die thereof

Technical Field

The utility model belongs to the technical field of the stamping die technique and specifically relates to a slider mechanism and punching press mould of bending thereof.

Background

For the bending treatment of parts needing inner buckling edges, the existing stamping and bending die generally realizes the processing of the parts through an upper die inclined wedge sliding block device and a lower die inclined wedge sliding block device, and achieves the purpose of stamping forming through a braking pushing piece and a sliding block which are respectively arranged on an upper die and a lower die and provided with matched inclined planes. In the prior art, the stroke of the slide is determined by the width of the brake push rod. When the bending depth is large, the width of the brake push rod needs to be increased, so that the whole size of the stamping die is inevitably increased, and the manufacturing cost of the stamping die is increased. Thus, a skilled person is urgently needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a structural design is simple, slider action stroke is big and need not the slider mechanism that the increase braking pushed away a width size.

The to-be-solved technical problem of the utility model is to provide a punching press mould of bending that contains above-mentioned slider mechanism.

In order to solve the technical problem, the utility model relates to a slider mechanism, it pushes away a, slider and drives above-mentioned slider and carry out the swing piece that removes for the die holder along left right direction including the braking. The braking pushing piece is fixed on the upper die base and penetrates through the material pressing plate. The upper end of the swinging piece is hinged to the lower die, and the lower end of the swinging piece is provided with a propping bending part. The top bending part is right corresponding to the left side wall of the sliding block. In addition, a torque application extension portion is provided on the side wall of the oscillating piece. When going up the mould and moving downwards for the lower mould, at first, the flitch is compressed tightly to the pressure flitch, and the upper die base continues to push down afterwards to make the swing piece swing around its pin joint along anticlockwise under the effect of braking ejector pad top thrust, and then lean on the portion of bending through the top and promote the slider and slide right, accomplish the flitch and bend.

Further, the torque is exerted the working face that extension portion and top leaned on the portion of bending and all sets up to circular-arc, and has the wearing layer in the surface coating.

Furthermore, the extending direction of the torque applying extending part is opposite to the extending direction of the propping bending part.

Further, the bending angle of the abutting bending part is 100-120 degrees.

Furthermore, the abutting surface at the lower end of the braking pushing piece is arranged obliquely upwards, and the inclination angle of the abutting surface relative to the horizontal direction is 15-30 degrees.

Furthermore, the lower end part of the braking pushing piece is hinged with a roller. When the brake pusher is moved downwardly, the roller is free to roll relative to the working surface of the torque application extension.

The utility model also discloses a punching press mould of bending, it includes above-mentioned slider mechanism.

Through adopting above-mentioned technical scheme to set up, under the prerequisite that does not change braking and pushes away piece and slider original dimension, increased the action stroke of slider through the mode that adopts add the swing piece, the magnification factor can reach 3 times, and simple structure, and the cost of manufacture is low, simple to operate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram of the operation of a slider mechanism in the prior art.

Fig. 2 is the local structure schematic diagram of the middle stamping bending die of the present invention.

Fig. 3 is a schematic structural diagram of the oscillating member in the slider mechanism of the present invention.

Fig. 4 is a schematic structural diagram of a first embodiment of the braking pushing member in the sliding block mechanism of the present invention.

Fig. 5 is a schematic structural diagram of a second embodiment of the braking pushing element in the sliding block mechanism of the present invention.

Fig. 6 is a schematic diagram of the operation of the middle slider mechanism of the present invention.

1-a slider mechanism; 11-braking the pushing piece; 111-a roller; 12-a slide block; 13-a pendulum; 131-against the bending part; 132-torque application extension; 2-lower mould; 21-a lower die holder; 3, molding the die; 31-an upper die holder; 32-a pressure plate.

Detailed Description

Fig. 1 shows a schematic action diagram of a slider mechanism in the prior art, which includes a braking pusher and a slider, when an upper die moves downward relative to a lower die, first, a material pressing plate presses a material plate, and then an upper die base continues to press downward, so that the slider slides rightward under the action of the pushing force of the braking pusher, and bending of the material plate is completed. The stroke of the slide block corresponds to the width dimension of the brake pushing piece. In the bending process with the increased depth, the problem needs to be solved by increasing the width of the braking and pushing piece, and the manufacturing cost of the stamping die is inevitably increased.

In order to solve the above problem, the present invention discloses a slider mechanism, which is described in detail below, and fig. 2 shows the present invention discloses a local structure diagram of a middle stamping bending die, which comprises an upper die 3, a lower die 2, and a slider mechanism 1 disposed therebetween, wherein the slider mechanism 1 comprises a brake pushing piece 11, a slider 12, and a swinging piece 13 for driving the slider 12 to move along the left and right direction relative to a lower die holder 21. The braking pushing member 11 is detachably fixed to the upper die holder 31 by a screw coupling, and passes through the pressure plate 32. The upper end of the swinging member 13 is hinged to the lower die 2, and the lower end of the swinging member 13 is provided with a bending part 131. The abutting bend 131 corresponds to the left side wall of the slider 12. In addition, a torque application extension 132 (shown in fig. 3) is also provided on the side wall of the swinging member 13. The abutting surface of the lower end of the brake pusher 11 corresponding to the torque application extension 132 is inclined upward (as shown in fig. 4), and preferably inclined at an angle of 15 to 30 ° with respect to the horizontal direction. Preferably, the extension direction of the torque application extension portion 132 is opposite to the extension direction of the abutting bending portion 131. Thus, when the upper die 3 moves downward relative to the lower die 2, firstly, the material pressing plate 32 presses the material plate, and then the upper die holder 31 continues to press downward, so that the swinging member 13 swings around the hinge point thereof in the counterclockwise direction under the action of the abutting force of the braking pushing member 11, and then the abutting bending portion 131 pushes the slider 12 to slide rightward, thereby completing the bending of the material plate (as shown in fig. 6).

The most outstanding beneficial effect of the technical scheme is as follows: on the premise of not changing the original sizes of the braking pushing piece 11 and the sliding block 12, the action stroke of the sliding block 12 can be increased by adding the swinging piece 13, the amplification factor can reach 3 times, and the braking pushing piece is simple in structure, low in manufacturing cost and convenient to install.

In order to ensure that the transmission process of the force applied to the oscillating member 13 by the braking pusher 11 and the abutting force applied to the slider 12 by the oscillating member 13 is smoother and more stable, the working surfaces of the torque applying extension portion 132 and the abutting bending portion 131 on the oscillating member may be set to be arc-shaped, and the radius of the arc may be set according to actual conditions. Furthermore, the working surfaces of the extended portion 132 and the abutting bending portion 131 may be coated with a wear-resistant layer, so as to reduce the relative friction coefficient and prolong the service life of the swinging member 13.

In order to make the slider mechanism 1 have a distance amplification factor as large as possible, the bending angle of the abutting bending portion 131 needs to be limited, and is generally controlled to be 100 to 120 °.

Fig. 5 is a schematic structural diagram of a second embodiment of the brake pusher in the slider mechanism of the present invention, which is different from the second embodiment of the brake pusher in that a roller 111 is hinged to a lower end of the brake pusher 11. When the brake pusher 11 moves downward, the roller 111 rolls freely with respect to the working surface of the torque application extension 132. Through adopting the above scheme to set up to make the motion fit relation of braking ejector sleeve 11 and swing piece 13 change rolling friction into from sliding friction, and then reduce both's rate of wear, reduce the maintenance frequency of punching press mould of bending. As a further optimization, in order to reduce the instant impact force of the braking and pushing member 11 on the swinging member 13 and reduce the damage rate of the hinged joint of the roller 111, a plastic layer may be further wrapped on the outer wall of the roller 111.

Finally, the utility model also discloses a punching press mould of bending, it contains foretell slider mechanism.

In the above description of the present invention, it should be understood that the terms "left", "right", "upper", "lower", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. A sliding block mechanism is characterized by comprising a braking pushing piece, a sliding block and a swinging piece for driving the sliding block to move along the left and right directions relative to a lower die base; the braking pushing piece is fixed on the upper die base and penetrates through the material pressing plate; the upper end part of the swinging piece is hinged to the lower die, and the lower end part of the swinging piece is provided with a propping bending part; the abutting bending part is right corresponding to the left side wall of the sliding block; in addition, a torque applying extension part is also arranged on the side wall of the device; when the upper die moves downwards relative to the lower die, firstly, the material pressing plate presses the material plate, and then the upper die base continues to press downwards, so that the swinging piece swings around the hinged point of the swinging piece along the anticlockwise direction under the action of the jacking force of the braking pushing piece, and then the jacking bending part pushes the sliding block to slide rightwards, and the bending of the material plate is completed.

2. The slider mechanism according to claim 1, wherein the torque application extension portion and the working surface of the abutting bend are both formed in a circular arc shape and coated with a wear-resistant layer on the surface.

3. A slider mechanism as claimed in claim 1, wherein the torque applying extensions are of opposite extent to the abutment bends.

4. The slider mechanism according to claim 1, wherein the bending angle of the abutting bending part is 100 to 120 °.

5. The slider mechanism according to any one of claims 1 to 4, wherein the abutting surface at the lower end of the stopper pusher is inclined upward at an angle of 15 to 30 ° with respect to the horizontal direction.

6. The slider mechanism according to any of claims 1 to 4, wherein a roller is hinged at the lower end of the brake pusher; when the brake pusher moves downward, the roller rolls freely relative to the working surface of the torque application extension.

7. A press bending die comprising a slider mechanism as claimed in any one of claims 1 to 6.

Images