CN205571134U - Reverse punching die - Google Patents

Abstract

The utility model discloses a reverse punching die, the loach carrying platform comprises a supporting fram, the mount pad down, ejecting pneumatic cylinder, the punching die, ejecting mould, the pull rod, go up the mount pad, hydraulic cylinder, the cover presses, the pneumatic cylinder punches a hole, the drift, this reverse punching die simple structure, and reasonable in design, promote the drift up-movement by the pneumatic cylinder that punches a hole earlier, will be in the material of punching die upper end down extrusion under the cooperation of punching die, and close on and stretch out, promote ejecting mould up extrusion to the material pulling by ejecting pneumatic cylinder again, thereby accomplish the processing of punching a hole, and extrude the inside in hole to burr downwards, therefore, the part outward appearance has been guaranteed, and can avoid burr scratch staff.

Description

A reverse punching die

technical field

The utility model relates to the field of stamping processing, in particular to a reverse punching die.

Background technique

The punching process is to drive the punching upper die to move downward through the punching machine, and the material is extruded under the action of the punching lower die to complete the punching process. Because the upper die squeezes the material, the hole will have a downward direction. The burrs will affect the appearance of the parts, and the burrs are easy to scratch the fingers of the workers. In view of the above defects, it is necessary to design a reverse punching die.

Contents of the invention

The technical problem to be solved by the utility model is to provide a reverse punching die to solve the problem of hole burrs after punching.

In order to solve the above-mentioned technical problems, the technical solution of the utility model is: a reverse punching die, including a support frame, a lower mounting seat, an ejection hydraulic cylinder, a punching die, an ejecting die, a pull rod, an upper mounting seat, a lifting Hydraulic cylinder, pressure sleeve, punching hydraulic cylinder, punch, the lower mounting seat is located on the top of the support frame, the lower mounting seat is connected to the support frame by threads, the ejection hydraulic cylinder is located on the top of the support frame, and The ejection hydraulic cylinder is located inside the lower mounting seat, the ejection hydraulic cylinder is threadedly connected to the support frame, the punching die is located inside the lower mounting seat, and the punching die is tightly connected to the mounting seat , the ejection die is located on the top of the ejection hydraulic cylinder, the ejection die is closely connected to the ejection hydraulic cylinder, the number of the pull rods is two, and the pull rods are symmetrically distributed on the left and right of the top of the lower mounting seat On both sides, the tie rod is tightly connected to the lower mounting seat, the upper mounting seat runs through the upper end of the tie rod, the upper mounting seat is connected to the tie rod by sliding fit, the lifting hydraulic cylinder is located at the top of the tie rod, and the The lifting hydraulic cylinder is located on the top of the upper mounting base, the lifting hydraulic cylinder is connected with the pull rod and the upper mounting base by threads, the pressure sleeve is located at the bottom of the upper mounting base, and the pressure sleeve is closely connected with the upper mounting base , the punching hydraulic cylinder is located at the top of the upper mounting seat, the punching hydraulic cylinder is threadedly connected with the upper mounting seat, the punch is located at the bottom of the punching hydraulic cylinder, and the punch is located at the pressure sleeve Inside, the punch is threadedly connected with the punching hydraulic cylinder.

Further, a spring is provided between the upper mounting base and the lower mounting base, and the spring passes through the pull rod, and the spring is connected with the pull rod by sliding fit.

Further, the top left end of the lower mounting base is also provided with a pushing cylinder, and the pushing cylinder is threadedly connected with the lower mounting base.

Further, a push plate is provided at the right end of the pushing cylinder, and the pushing plate is threadedly connected with the pushing cylinder.

Further, the inside of the lower mounting seat is also provided with a positioning cylinder, and the positioning cylinder is threadedly connected with the lower mounting seat.

Further, a positioning pin is provided on the top of the positioning cylinder, and the positioning pin is threadedly connected with the positioning cylinder.

Compared with the prior art, the reverse punching die first puts the parts to be stamped on the punching die in the lower mounting seat, and the positioning pin is pushed downward by the positioning cylinder, so that the positioning pin can position the part , start the lifting hydraulic cylinder, the lifting hydraulic cylinder pulls the pull rod to shrink into the inside of the lifting hydraulic cylinder, so the upper mounting plate can be pulled to move down, and the pressure sleeve can press the workpiece on the upper end of the punching die, start the punching hydraulic cylinder, and punch The hydraulic cylinder pushes the punch to move down, and through the cooperation between the punch and the punching die, the material on the punching die can be squeezed down for a certain distance, and the material extruded down is close to breaking, punching The hydraulic cylinder drives the punch to move downward, and at the same time, the ejector hydraulic cylinder pushes the ejector die to move upward, and the ejector die pushes the downwardly extruded material upward again, so as to break the extruded material, thereby Finish the punching process, and squeeze the burr of the hole upwards, so that the burr is located in the hole. After the punching process is completed, the pusher cylinder pushes the push plate to move to the right, so that the punched residual material can be pushed away from the punching hole. hole die, so as to complete the punching process of the next hole. The punching die has a simple structure and a reasonable design. First, the punch is pushed upward by the punching hydraulic cylinder. The material is extruded downward and is about to be broken, and then the ejector die is pushed upward by the ejector hydraulic cylinder to extrude the material until the material is pulled, thus completing the punching process, and the downward burrs are extruded into the inside of the hole, thus ensuring The appearance of the parts is improved, and the burrs can be avoided to scratch the staff.

Description of drawings

Fig. 1 is the sectional view of reverse punching die;

The cross-sectional view of the lower mounting seat in Fig. 2;

Fig. 3 is a sectional view of the lower mount portion.

Support frame 1, lower mounting seat 2, ejection hydraulic cylinder 3, punching die 4, ejection die 5, tie rod 6, upper mounting seat 7, lifting hydraulic cylinder 8, pressure sleeve 9, punching hydraulic cylinder 10, punch 11. Push material cylinder 201, push plate 202, positioning cylinder 203, positioning pin 204, spring 601.

The following specific embodiments will be further described in conjunction with the above-mentioned drawings.

detailed description

In the following, numerous specific details are set forth in order to provide a thorough understanding of the concepts underlying the described embodiments. It will be apparent, however, to one skilled in the art that the described embodiments may be practiced without some or all of these specific details. In other instances, well known processing steps have not been described in detail.

As shown in Figure 1, Figure 2, and Figure 3, a reverse punching die includes a support frame 1, a lower mounting seat 2, an ejection hydraulic cylinder 3, a punching die 4, an ejection die 5, a pull rod 6, an upper Mounting seat 7, lifting hydraulic cylinder 8, pressure sleeve 9, punching hydraulic cylinder 10, punch 11, pushing cylinder 201, push plate 202, positioning cylinder 203, positioning pin 204, spring 601, the lower mounting seat 2 Located on the top of the support frame 1, the lower mounting seat 2 is threadedly connected to the support frame 1, the ejection hydraulic cylinder 3 is located on the top of the support frame 1, and the ejection hydraulic cylinder 3 is located inside the lower mounting seat 2, The ejection hydraulic cylinder 3 is threadedly connected with the support frame 1, the punching die 4 is located inside the lower mounting seat 2, the punching die 4 is closely connected with the mounting seat 2, and the ejection die 5 is located at the top of the ejection hydraulic cylinder 3, the ejection die 5 is tightly connected to the ejection hydraulic cylinder 3, the number of the pull rods 6 is two, and the pull rods 6 are symmetrically distributed on the top of the lower mounting seat 2. On both sides, the tie rod 6 is tightly connected to the lower mounting seat 2, the upper mounting seat 7 runs through the upper end of the tie rod 6, the upper mounting seat 7 is connected to the pull rod 6 by sliding fit, and the lifting hydraulic cylinder 8 is located at the top of the pull rod 6, and the lifting hydraulic cylinder 8 is located at the top of the upper mounting base 7, the lifting hydraulic cylinder 8 is threadedly connected with the pull rod 6 and the upper mounting base 7, and the pressure sleeve 9 is located on the upper mounting base 7 At the bottom end, the pressure sleeve 9 is closely connected with the upper mounting seat 7, the punching hydraulic cylinder 10 is located on the top of the upper mounting seat 7, and the punching hydraulic cylinder 10 is threadedly connected with the upper mounting seat 7, so that The punch 11 is located at the bottom of the punching hydraulic cylinder 10, and the punch 11 is located inside the pressure sleeve 9, the punch 11 is threadedly connected with the punching hydraulic cylinder 10, and the upper mounting seat 7 is connected with the There is also a spring 601 between the lower mounting bases 2, and the spring 601 runs through the pull rod 6, the spring 601 is connected with the pull rod 6 by sliding, and the top left end of the lower mounting base 2 is also provided with a pushing cylinder 201, the pusher cylinder 201 is threadedly connected with the lower mounting seat 2, and the right end of the pusher cylinder 201 is also provided with a push plate 202, and the push plate 202 is threadedly connected with the pusher cylinder 201, and the lower Mounting seat 2 is also provided with positioning cylinder 203 inside, and described positioning cylinder 203 is connected with lower mounting seat 2 threads, and described positioning cylinder 203 top is also provided with positioning pin 204, and described positioning pin 204 is threaded with positioning cylinder 203. Connected, the reverse punching die, first place the parts that need to be stamped on the punching die 4 in the lower mounting seat 2, and push the positioning pin 204 downwards by the positioning cylinder 203, so that the positioning pin 204 positions the parts , start the lifting hydraulic cylinder 8, and the lifting hydraulic cylinder 8 pulls the pull rod 6 to shrink to the inside of the lifting hydraulic cylinder 8, so the upper mounting plate 7 can be pulled to move downward, and the pressure sleeve 9 can press the workpiece on the upper end of the punching die 4, and start The punching hydraulic cylinder 10, the punching hydraulic cylinder 10 pushes the punch 11 to move downward, and the punch 11 cooperates with the punching die 4, so that the material of the part on the punching die 4 can be squeezed down for a certain distance, and reach down extrusion The material is close to fracture, the punching hydraulic cylinder 10 drives the punch 11 to move downward, and the ejection hydraulic cylinder 3 pushes the ejection die 5 to move upward, and the ejection die 5 pushes the downwardly extruded material upward again , so as to achieve the breaking of the extruded material, thereby completing the punching process, and pressing the burr at the orifice upwards, so that the burr is located in the hole. After the punching process is completed, the pusher cylinder 201 pushes the push plate 202 toward the Right movement, so that the punching residual material can be pushed away from the punching die 4, so that the punching process of the next hole can be completed, wherein the support frame 1 is used to install and fix the lower support seat 2 and the ejection hydraulic cylinder 3, The lower support base 2 is to fix the punching die 4 and the pull rod 6, the upper mounting base 7 is to install and fix the lifting hydraulic cylinder 8, the punching hydraulic cylinder 10 and the pressure sleeve 9, and the spring 601 is to fix the upper mounting base. 7 plays a supporting role, so when not working, the lifting hydraulic cylinder 8 is protected.

The utility model is not limited to the above-mentioned specific implementation manners, and various transformations made by those skilled in the art starting from the above-mentioned ideas without creative work all fall within the protection scope of the utility model.

Claims (6)

1. A reverse punching die, characterized in that it includes a support frame, a lower mounting seat, an ejection hydraulic cylinder, a punching die, an ejection die, a pull rod, an upper mounting seat, a lifting hydraulic cylinder, a pressure sleeve, and a punching hydraulic pressure Cylinder, punch, the lower mounting seat is located at the top of the support frame, the lower mounting seat is threadedly connected with the support frame, the ejection hydraulic cylinder is located at the top of the support frame, and the ejection hydraulic cylinder is located at the bottom Inside the mounting seat, the ejection hydraulic cylinder is threadedly connected to the support frame, the punching die is located inside the lower mounting seat, the punching die is closely connected to the mounting seat, and the ejection die is located on the top Out of the top of the hydraulic cylinder, the ejection mold is closely connected with the ejection hydraulic cylinder, the number of the tie rods is two, and the tie rods are symmetrically distributed on the left and right sides of the top of the lower mounting seat. The mounting seat is closely connected, the upper mounting seat runs through the upper end of the tie rod, the upper mounting seat is connected with the tie rod by sliding fit, the lifting hydraulic cylinder is located at the top of the tie rod, and the lifting hydraulic cylinder is located on the upper mounting seat At the top, the lifting hydraulic cylinder is threadedly connected with the pull rod and the upper mounting base, the pressure sleeve is located at the bottom of the upper mounting base, the pressure sleeve is closely connected with the upper mounting base, and the punching hydraulic cylinder is located at the bottom of the upper mounting base. On the top of the upper mounting seat, the punching hydraulic cylinder is threadedly connected with the upper mounting seat, the punch is located at the bottom of the punching hydraulic cylinder, and the punch is located inside the pressure sleeve, the punch and the punch The hole hydraulic cylinder is threaded. 2. A reverse punching die as claimed in claim 1, characterized in that a spring is also provided between the upper mount and the lower mount, and the spring runs through the pull rod, and the spring Slidingly connected with the tie rod. 3. A reverse punching die as claimed in claim 2, characterized in that the top left end of the lower mounting seat is provided with a pushing cylinder, and the pushing cylinder is threadedly connected with the lower mounting seat. 4. A reverse punching die as claimed in claim 3, characterized in that a push plate is provided at the right end of the pushing cylinder, and the pushing plate is threadedly connected with the pushing cylinder. 5. A reverse punching die as claimed in claim 4, characterized in that a positioning cylinder is provided inside the lower mounting seat, and the positioning cylinder is threadedly connected with the lower mounting seat. 6. A reverse punching die as claimed in claim 5, characterized in that a positioning pin is provided on the top of the positioning cylinder, and the positioning pin is threadedly connected with the positioning cylinder.