CN211637986U

CN211637986U - Weak structure stamping die of big notch cuttype face

Info

Publication number: CN211637986U
Application number: CN201922163177.4U
Authority: CN
Inventors: 黄天超
Original assignee: Huizhou Jinyi Machinery Product Co ltd
Current assignee: Huizhou Jinyi Machinery Product Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-10-09
Anticipated expiration: 2029-12-06

Abstract

The utility model relates to a weak structure stamping die of big notch cuttype face, including last mould and lower mould, it has set gradually bedplate, upper padding plate, die backing plate and die from top to bottom to go up the mould, the lower mould is by lower supreme bedplate, lower bolster, the terrace die backing plate and the terrace die of having set gradually down, the die is provided with the die cavity that corresponds with the terrace die, terrace die one side is provided with takes off the flitch. The utility model discloses set up the main atress part of product on taking off the flitch, take off flitch rethread supporting spring and play the power of unloading effect, and the die cavity that punching press part was seted up through setting up in the terrace die and the die of taking off flitch one side carries out the punching press, the effectual easy damage problem of having avoided the punching press of product weak part to arouse.

Description

Weak structure stamping die of big notch cuttype face

Technical Field

The utility model relates to a hardware processing field especially relates to weak structure stamping die of big ladder face.

Background

The stamping die is a special process equipment for processing metal or nonmetal materials into parts or semi-finished products in cold stamping processing, and is called as a cold stamping die. Stamping is a press working method in which a die mounted on a press is used to apply pressure to a material at room temperature to cause separation or plastic deformation of the material, thereby obtaining a desired part.

The step surface is formed by stamping hardware in a stamping process, and generally, a product part with small volume and weight is used as a stamping part, and the stamping part is stamped through a stamping die, so that the step surface is formed. However, some products needing to process the step surface have small volume and weight parts which become weak structures due to the fact that large groove bodies or through holes are formed in the parts, and the products are easily damaged if the parts are punched by a male die independently. As shown in fig. 1, the product 1 includes a first step surface 2, a second step surface 3 and a transition surface 4 connecting the first step surface and the second step surface after being stamped, wherein the first step surface 2 has a small volume and a small weight and is provided with a groove 5 so that the first step surface becomes a weak structure and is very easy to damage during stamping. The product is a semi-processed product, interference with other parts is avoided during stamping, the second step surface 3 is provided with a plurality of through holes 6, the stamped product is required to ensure the position accuracy of the through holes after stamping, and the position change caused by the area deviation of the second step surface 3 is avoided.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model adopts the following technical scheme: the utility model provides a weak structure stamping die of big ladder face, includes mould and lower mould, it has set gradually bedplate, upper padding plate, die backing plate and die from top to bottom to go up the mould, the lower mould has set gradually bedplate, lower bolster, terrace die backing plate and terrace die by supreme down, the die cavity that corresponds with the terrace die is provided with to the die, terrace die one side is provided with takes off the flitch.

The main bearing surface of taking off the flitch as the product for the main atress part of product all lies in on the flitch that takes off that need not to process, and sets up the terrace die that needs the processing part in taking off flitch one side, and the easy difficult problem of damaging of weak structure exists in the punching press part when ingenious having avoided the product punching press.

Furthermore, the bottom of the stripper plate is connected with a plurality of supporting springs, and the other ends of the supporting springs penetrate through the male die base plate and the lower base plate and are fixedly connected with the lower base plate.

The supporting spring is not only used for resetting and supporting the stripper plate when the die is opened, but also plays a better role in buffering because the stripper plate is used as a main stressed part when in stamping, thereby preventing the part of the product from being stressed and deformed.

Furthermore, the male die is provided with a plurality of upper positioning through holes, the male die base plate is provided with a plurality of lower positioning through holes corresponding to the upper positioning through holes, and positioning pins are arranged between the upper positioning through holes and the lower positioning through holes to connect the upper positioning through holes and the lower positioning through holes.

The male die is connected with the male die base plate through the positioning pin, so that the male die base plate is fixedly connected with the male die base plate, the male die base plate is very convenient to mount and dismount, and the male die can be easily maintained or replaced.

Furthermore, a plurality of positioning blocks are arranged in the middle of the stripper plate. The positioning block is used as a positioning connecting block for the product and the stripper plate, and plays a role in positioning and fixing the product.

Furthermore, at least two limiting blocks are arranged on one side, away from the male die, of the stripper plate. The setting of stopper is mainly for the convenience of the location of the locating piece of product to be connected, makes the product find better with the benchmark locating position of locating piece through the stopper, plays the fixed action to the product after the product installation simultaneously.

Furthermore, the lower backing plate is provided with four guide posts which penetrate through the male die backing plate and extend upwards, the guide posts are in a rectangular array, and the female die is provided with guide sleeves which are respectively matched with the guide posts.

The utility model has the advantages that:

the utility model discloses set up the main atress part of product on taking off the flitch, take off flitch rethread supporting spring and play the power of unloading effect, and the die cavity that punching press part was seted up through setting up in the terrace die and the die of taking off flitch one side carries out the punching press, the effectual easy damage problem of having avoided the punching press of product weak part to arouse.

Drawings

The figures further illustrate the invention, but the embodiments in the figures do not constitute any limitation of the invention.

Fig. 1 is a schematic structural diagram of a product processed by the background art of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic view of a local structure of the lower mold of the present invention.

Detailed Description

As shown in fig. 1-3, the utility model provides a weak structure stamping die of big ladder face, including last mould 7 and lower mould 8, it has set gradually bedplate 9, upper padding plate 10, die backing plate 11 and die 12 from top to bottom to go up mould 7, lower mould 8 has set gradually bedplate 13, lower padding plate 14, punch backing plate 15 and terrace die 16 down by supreme down, die 12 is provided with the die cavity 17 that corresponds with terrace die 16, 16 one side of terrace die is provided with takes off flitch 18.

The cavity 17 corresponds to the first step face 2 and the transition face 4 of the product 1. The upper padding plate 10, the female die padding plate 11 and the female die 12 can be fixedly connected with the upper seat plate 9 in a screw locking mode or can be respectively locked by screws between adjacent parts, and can also be fixed in any fixing mode in the prior art, which is not described herein in detail. The lower cushion plate 14 and the convex mold cushion plate 15 can be fixedly connected with the lower seat plate 13 in a screw locking mode or can be respectively locked between the adjacent lower cushion plate and the convex mold cushion plate through screws, and can also be fixed in any fixing mode in the prior art, which is not described herein again.

The bottom of the stripper plate 18 is connected with a plurality of supporting springs 19, and the other ends of the supporting springs 19 penetrate through the punch backing plate 15 and the lower backing plate 14 and are fixedly connected with the lower seat plate 13. The stripper plate 18 has a higher upper surface than the punch 16 in the open mold state to avoid interference with the punch when the product 1 to be stamped is mounted.

The male die 16 is provided with a plurality of upper positioning through holes 20, the male die backing plate 15 is provided with a plurality of lower positioning through holes 21 corresponding to the upper positioning through holes 20, and positioning pins 22 are arranged between the upper positioning through holes 20 and the lower positioning through holes 21 to connect the upper positioning through holes and the lower positioning through holes. The male die 16 is connected with the male die backing plate 15 in the form of an insert in the die, considering that the size and the area of the male die 16 are far smaller than those of the female die 12, the male die 16 is easy to cause certain abrasion after repeated stamping, in order to ensure the precision of a processed product 1, the male die 16 needs to be maintained or replaced, the male die 16 is connected with the male die backing plate 15 through the positioning pin 22, the replacement is convenient, and the stability is good.

The middle part of the stripper plate 18 is provided with a plurality of positioning blocks 23. Have a plurality of through-holes 6 on the second step face 3 of product 1, for the position accuracy of guaranteeing product 1 when the punching press to through-hole 6 is as the location benchmark, consequently has set up a plurality of locating pieces 23 on ejector plate 18, the position and the through-hole 6 one-to-one of locating piece 23, ejector plate 18 is under supporting spring 18 effect, ejector plate 18 upper surface of not punching press state is higher than terrace die 16, so can be convenient for the installation location of product 1 before the punching press.

At least two limiting blocks 24 are arranged on the side, away from the male die 16, of the stripper plate 18. The product 1 is directly positioned by the positioning blocks 23 and is inconvenient to place, and the limiting blocks 24 are arranged to assist in positioning the positioning blocks 23, so that the fixing efficiency of the product 1 is improved.

The lower backing plate 14 is provided with four guide posts 25 penetrating the male backing plate 15 and extending upwards, the guide posts 25 are in a rectangular array, and the female die 12 is provided with guide sleeves 26 respectively matched with the guide posts 25. The upper die 7 and the lower die 8 are connected, opened and closed through the matching of the guide posts 25 and the guide sleeves 26, and the guide posts 25 in the rectangular array are stressed uniformly.

The working principle is as follows: product 1 is placed on taking off flitch 18 for the benchmark through stopper 24, make through-hole 6 and the installation of locating piece 23 one-to-one, the compound die punching press, product 1 is located the partial centre gripping of taking off flitch 18 and die 12 plane part unchangeable, product 1 is located die 12 and the part that terrace die 16 corresponds receives the punching press deformation, make product 1 first step face 2 appear, second step face 3 and connect excessive face 4 between them, because the main atress part of product 1 all is on taking off flitch 18, be difficult for causing the damage because of the atress is too big to the weak structure that has cell body 5, and supporting spring 19's setting makes product 1 have the cushioning effect in the part of taking off flitch 18, prevent this part pressurized deformation. When the die is opened, the product 1 cannot be attached to the female die 12 due to the existence of the positioning block 23 and the limiting block 24, and the product 1 is taken down after the stripper plate 18 rebounds.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a weak structure stamping die of big ladder face which characterized in that: including last mould and lower mould, it has set gradually bedplate, upper padding plate, die backing plate and die from top to bottom to go up the mould, the lower mould has set gradually bedplate, lower bolster, terrace die backing plate and terrace die by supreme down, the die is provided with the die cavity that corresponds with the terrace die, terrace die one side is provided with takes off the flitch.

2. The stamping die for the weak structure of the large stepped surface as claimed in claim 1, wherein: the bottom of the stripper plate is connected with a plurality of supporting springs, and the other ends of the supporting springs penetrate through the male die base plate and the lower base plate and are fixedly connected with the lower base plate.

3. The stamping die for the weak structure of the large stepped surface as claimed in claim 2, wherein: the male die is provided with a plurality of upper positioning through holes, the male die base plate is provided with a plurality of lower positioning through holes corresponding to the upper positioning through holes, and positioning pins are arranged between the upper positioning through holes and the lower positioning through holes to connect the upper positioning through holes and the lower positioning through holes.

4. The stamping die for the weak structure of the large stepped surface as claimed in claim 3, wherein: and a plurality of positioning blocks are arranged in the middle of the stripper plate.

5. The stamping die for the weak structure of the large stepped surface as claimed in claim 4, wherein: and at least two limiting blocks are arranged on one side of the stripper plate, which is far away from the male die.

6. The stamping die for the weak structure with the large stepped surface as claimed in any one of claims 1 to 5, wherein: the lower base plate is provided with four guide posts which penetrate through the male die base plate and extend upwards, the guide posts are in a rectangular array, and the female die is provided with guide sleeves which are respectively matched with the guide posts.