CN203955886U - A punching die - Google Patents

Abstract

This utility model discloses a punching die. It includes an upper die assembly and a lower die assembly, with the upper die assembly located above the lower die assembly. A first driving device is connected to the upper part of the upper die assembly. The upper die assembly includes a punch, which includes a punch body. The lower surface of the punch body protrudes downwards to form a punch insert. The lower die assembly includes a die body and a die sleeve. The die body has a first through hole adapted to the die sleeve, which is compatible with the punch body. The die sleeve has a second through hole adapted to the punch insert. A second driving device is connected to the lower part of the die sleeve. This punching die of this utility model punches holes in the workpiece while simultaneously flanging the holes, improving efficiency. Different die sleeves and punches can be replaced according to the required punching size, achieving multi-purpose functionality.

Description

A punching die

technical field

The utility model relates to a mold, in particular to a punching mold.

Background technique

Mold, various molds and tools used in industrial production for injection molding, blow molding, extrusion, die-casting or forging forming, smelting, stamping, stretching and other methods to obtain the required products. In short, a mold is a tool used to shape an object. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the article through the change of the physical state of the formed material. Punching refers to punching various graphics on steel plates, leather, cloth, wood and other materials to meet different needs, specifically: cross holes, diamond holes, fish scale holes, eight-character holes, hexagonal holes, punching plates, long holes , Square holes, round holes, perforated sheet metal, triangular holes and so on.

As we all know, a punching die is a punching die used to punch a workpiece. Existing punching dies also need a special flanging die to flang the workpiece after the punching is completed.

Utility model content

Aiming at the deficiencies of the prior art, the utility model provides a punching die, the punching die punches the workpiece and at the same time completes the flanging of the hole; according to the size of the punching hole, different dies can be replaced Set and punch, to achieve a multi-purpose mold.

A punching die includes an upper die set and a lower die set, the upper die set is located above the lower die set, a first driving device is connected above the upper die set, the upper die set includes a punch, and the punch includes a punch body, The middle part of the lower surface of the punch body protrudes downward to form a punch block; the lower die set includes a die body and a die sleeve, and the die body is provided with a first through hole compatible with the die sleeve, and the first through hole Compatible with the punch body, the die sleeve is provided with a second through hole adapted to the punch block, and the bottom of the die sleeve is connected with a second driving device.

Preferably, the top of the second through hole is provided with a speed sensor capable of detecting the speed at which the punch enters the second through hole, and the first driving device and the second driving device are connected to control the first driving device according to the signal detected by the speed sensor. The driving device and the second driving device are control devices for driving force.

Preferably, the upper die set also includes an upper die base, a punch fixing plate is arranged under the upper die base, the punch is arranged on the punch fixing plate, a lower backing plate is arranged under the die body, and a lower backing plate is arranged under the lower backing plate. There is a lower mold base.

Preferably, the inner wall of the first through hole is provided with a molybdenum disulfide layer.

Preferably, both the first driving device and the second driving device are pneumatic rods.

Preferably, the lower end of the punch block is provided with a conical blade.

Preferably, the upper die set also includes a discharge plate, a discharge nail, and an elastic member, the discharge plate is arranged below the punch fixing plate, the elastic member is arranged above the discharge plate, and the discharge nail runs through the upper die base, The elastic part is connected with the unloading plate.

Compared with the prior art, the utility model has the following beneficial effects: the punching die provided by the utility model includes an upper die set and a lower die set, the upper die set is located above the lower die set, and the upper die set is connected with a second A driving device, the upper die set includes a punch head, the punch head includes a punch body, and the middle part of the lower surface of the punch body protrudes downward to form a punch block; the lower die set includes a die body, a die set, and a die body There is a first through hole adapted to the die sleeve, the first through hole is adapted to the punch body, the die sleeve is provided with a second through hole adapted to the punch into the block, and the bottom of the die sleeve is connected with a Second drive. When the punching die of the utility model punches the workpiece, it also completes the flanging of the hole, which improves the efficiency; according to the size of the punching hole, different die sets and punches can be replaced, so that one die can be used for multiple purposes.

Description of drawings

Fig. 1 is the structural representation of the utility model.

The accompanying drawings are as follows: 11- punch, 12- unloading plate, 13- punch fixing plate, 14- upper backing plate, 15- upper die holder, 16- elastic component, 17- unloading nail, 18- the first Driving device, 21-die sleeve, 22-die body, 23-lower backing plate, 24-lower die holder, 25-second driving device.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in detail.

Referring to Fig. 1, a kind of punching die of the present embodiment comprises upper die group and lower die group, and upper die group is positioned at the top of lower die group, and the top of upper die group is connected with first driving device 18, and upper die group includes punching Head 11, punch 11 comprises punch body, and the middle part of the lower surface of punch body protrudes downwards to form punch block; The first through hole adapted to the die cover 21, the first through hole is adapted to the punch body, the die cover 21 is provided with the second through hole adapted to the punch into the block, and the bottom of the die cover 21 is connected with the second through hole. Two driving means 25.

In this embodiment, the die cover 21 is placed in the first through hole, the upper surface of the die cover 21 is flush with the upper surface of the die body 22, the workpiece is placed on the die body 22, and the first driving device 18 drives it The die set moves down, and the punch enters the block to contact the workpiece and punches it. After completion, the second driving device 25 drives the die sleeve 21 to move down along the first through hole, and the lower die set continues to move down, and the punch body completes alignment. After the flanging of the workpiece, the upper die set and the die cover 21 are reset, and the punch 11 and the die cover 21 can be replaced according to the actual punching needs. The punching die of the present invention also completes the punching of the workpiece. The flanging of the hole; according to the size of the punching hole, different die sets 21 and punches 11 can be replaced, so that one die can be used for multiple purposes.

Preferably, the top of the second through hole is provided with a speed sensor capable of detecting the speed at which the punch enters the second through hole, and the first driving device 18 and the second driving device 25 are connected with signals detected by the speed sensor to control The first driving device 18 and the second driving device 25 are control devices for driving force. After the punching is completed, the punch continues to move down. The speed sensor detects the speed at which the punch enters the second through hole and converts it into an electrical signal and transmits it to the control device. The control device adjusts the first drive according to the electrical signal. The magnitude of the downward driving force of the device 18 and the second driving device 25 makes the punch 11 and the die sleeve 21 move down according to a predetermined speed, and completes the flanging. The utility model adopts a speed sensor and a control device well known to those skilled in the art, so that the flanging process is stable, the workpiece is flat, and the product quality is guaranteed.

Upper die group also comprises upper die base 15, the below of upper die base 15 is provided with punch fixed plate 13, and punch 11 is located on the punch fixed plate 13, is provided between upper die base 15 and punch fixed plate 13. The upper backing plate 14, the lower backing plate 23 is provided below the die body 22, the lower backing plate 23 is provided with a lower mold base 24 below the lower backing plate 23, the inwall of the first through hole is provided with a molybdenum disulfide layer, the first driving device 18, the second Two driving devices 25 are pneumatic rods. Molybdenum disulfide has good lubricity, which can make the die sleeve 21 move up and down smoothly in the first through hole and reduce wear.

The upper module also includes a discharge plate 12, a discharge nail 17, and an elastic member 16. The discharge plate 12 is arranged below the punch fixing plate 13, and the elastic member 16 is arranged above the discharge plate 12. The discharge nail 17 is in turn Through the upper mold base 15, the elastic part 16 is connected with the discharge plate 12, and the lower end of the punch block is provided with a conical blade. The blade of this shape effectively reduces the contact area between the workpiece and the punch block, makes the punching pressure more concentrated, better completes the punching, and improves the punching quality.

The applicant declares that the utility model illustrates the detailed structure and process of the utility model through the above-mentioned embodiments, but the utility model is not limited to the above-mentioned detailed structure and process, that is, it does not mean that the utility model must rely on the above-mentioned detailed structure and process can be implemented. Those skilled in the art should understand that any improvement of the utility model, the equivalent replacement of each raw material of the utility model product, the addition of auxiliary components, the selection of specific methods, etc., all fall within the scope of protection and disclosure of the utility model within.

Claims (7)

1. a punching die, is characterized in that, comprises module and lower module, and described upper module is positioned at the top of described lower module, and the top of described upper module is connected with the first drive unit (18),

Described upper module comprises drift (11), and described drift (11) comprises punching pin body, and the lower surface middle part of described punching pin body is protruded formation punching pin downwards and entered piece;

Described lower module comprises die body (22), die case (21), described die body (22) offers the first through hole adapting with described die case (21), described the first through hole and described punching pin body adapt, described die case (21) offers with described punching pin and enters the second through hole that piece adapts, and the below of described die case (21) is connected with the second drive unit (25).

2. punching die according to claim 1, it is characterized in that, the top of described the second through hole is provided with can be detected described punching pin and enter the velocity sensor that piece enters the speed of the second through hole, and described the first drive unit (18), the second drive unit (25) are connected with the control device of following the signal detecting according to velocity sensor to control described the first drive unit (18), the second drive unit (25) driving force size.

3. punching die according to claim 1, it is characterized in that, described upper module also comprises upper bolster (15), the below of described upper bolster (15) is provided with described punch fixing plate (13), described drift (11) is located on described punch fixing plate (13), below described die body (22), be provided with lower bolster (23), described lower bolster (23) is provided with die shoe (24) below.

4. punching die according to claim 1, is characterized in that, the inwall of described the first through hole is provided with curing molybdenum layer.

5. punching die according to claim 1, is characterized in that, described the first drive unit (18), the second drive unit (25) are atmospheric pressure pole.

6. punching die according to claim 1, is characterized in that, the lower end that described punching pin enters piece offers and is conical blade.

7. punching die according to claim 3, it is characterized in that, described upper module also comprises stripper (12), discharging nail (17), elastomeric element (16), described stripper (12) is located at the below of punch fixing plate (13), described elastomeric element (16) is located at the top of described stripper (12), and described discharging nail (17) runs through described upper bolster (15) successively, elastomeric element (16) is connected with described stripper (12).