CN218252503U

CN218252503U - Drawing stamping die for controlling delayed resetting of pressure plate

Info

Publication number: CN218252503U
Application number: CN202222544262.7U
Authority: CN
Inventors: 聂国顺; 张�杰
Original assignee: Guangdong Tianzhuo Intelligent Equipment Technology Co ltd
Current assignee: Guangdong Tianzhuo Intelligent Equipment Technology Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-01-10
Anticipated expiration: 2032-09-26

Abstract

The utility model discloses a drawing stamping die that pressure flitch time delay was reset is pressed in control, this drawing stamping die that pressure flitch time delay was reset is pressed in control aim at solving product in the middle of the prior art when the drawing need press the material in the inside and outside of product, and interior flitch and outer pressure limit circle can exert the bullet apical force to the product simultaneously when the die sinking, make the phenomenon that the product that draws good appears warping easily, reduce the quality technical problem of product. The drawing stamping die for controlling the delayed reset of the pressure plate comprises an upper die base and a lower die base, wherein a stripper plate and a drawing female die are respectively installed in the upper die base, a drawing male die and a blank holder which are matched with the drawing female die are installed in the lower die base, a first nitrogen spring is installed in the upper die base, rotating shafts are respectively arranged at two ends of the lower die base, a delay reset block is installed on each rotating shaft, a first ejector block and a second ejector block are respectively arranged at two sides of the lower end of each delay reset block, a second nitrogen spring is installed at the lower portion of each first ejector block, and a spiral spring is arranged at the lower portion of each second ejector block.

Description

Drawing stamping die for controlling delayed resetting of pressure plate

Technical Field

The utility model belongs to the technical field of stamping die, concretely relates to drawing stamping die that time delay of control pressure flitch resets.

Background

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 thereof, thereby obtaining a desired part; the drawing is a stamping process for changing straight blanks or process pieces into curved surfaces, the curved surfaces are mainly formed by extending materials positioned at the bottom of a male die and at the upper part of a blank holder, and a drawing stamping die is used for forming and processing workpieces.

For example, chinese patent publication No.: CN107052162B discloses a stamping and drawing die, which comprises: the die comprises an upper die base and a die insert arranged at the bottom of the upper die base; the lower die base, and a blank holder and a male die which are arranged on the lower die base; a cavity arranged along the material pressing direction is formed in the upper die base, a material pressing core is arranged in the cavity in a sliding mode, and a convex molded surface used for limiting the flow speed of the blank is arranged at the bottom end of the material pressing core; the method effectively controls the blank flowing in the middle area of the plate material in the drawing forming process, thereby eliminating the quality problem of wrinkling in the blank drawing forming process, but has the following problems:

when a product needs to be pressed inside and outside the product during drawing in the prior art, the traditional method applies elastic jacking force to the product when the inner pressing plate and the outer pressing edge ring are opened, so that the drawn product is easy to deform, the probability of product disqualification is increased, and the quality of the product is reduced.

SUMMERY OF THE UTILITY MODEL

(1) Technical problem to be solved

An it is not enough to prior art, the utility model aims to provide a drawing stamping die that pressure flitch time delay was reset is pressed in control, this drawing stamping die that pressure flitch time delay was reset is aimed at solving among the prior art product need press when the material in the inside and outside of product when drawing, and interior flitch and outer pressure border can exert the bullet apical force to the product simultaneously when the die sinking, make the phenomenon that the product that draws good appears warping easily, reduce the quality technical problem of product.

(2) Technical scheme

In order to solve the technical problem, the utility model provides a such drawing stamping die that control pressure flitch time delay resets is provided, this drawing stamping die that control pressure flitch time delay resets includes upper die base and die holder, install stripper plate and drawing die in the upper die base respectively, install in the die holder and draw die matched with drawing terrace die and blank holder, install first nitrogen spring in the upper die base, the both ends of die holder are equipped with the pivot respectively, install in the pivot and postpone the reset block, the lower extreme both sides of postponing the reset block are equipped with first kicking block and second kicking block respectively, the second nitrogen spring is installed to the lower part of first kicking block, the lower part of second kicking block is equipped with coil spring, be equipped with the third nitrogen spring that is used for carrying out the back-lifting to the blank holder in the die holder.

Through delaying the reset block and rotating around the pivot and withstanding the stripper plate, do not let the stripper plate reset to make the blank holder reply the die sinking state, make the product break away from naturally, then delay the reset block and separate with the stripper plate gradually, thereby can delay the reset time of upper die base, avoid causing the phenomenon of deformation to the product

Preferably, a product is arranged between the drawing female die and the drawing male die; the product is conveniently drawn through the drawing female die and the drawing male die.

Further, a fixing plate is arranged at the top end of the first nitrogen spring, an installation plate is arranged right above the fixing plate, and the installation plate is fixedly installed inside the upper die base; conveniently assemble first nitrogen gas spring through fixed plate and mounting panel, make things convenient for the later stage to maintain.

Furthermore, two heading blocks are arranged between every two adjacent first nitrogen springs, and each heading block is symmetrically provided with two assembling holes; can carry on spacingly to the upper die base through mound piece, be convenient for prescribe a limit to the distance that the upper die base moved down.

Furthermore, a gap is formed between the bottom end of the first nitrogen spring and the drawing female die, and the length of the extending end of the first nitrogen spring is larger than the gap; a gap is formed between the bottom end of the first nitrogen spring and the drawing female die, so that the first nitrogen spring does not work at the beginning, and the drawing female die is used for positioning a product.

Furthermore, the bottom parts of the second nitrogen spring and the third nitrogen spring are respectively provided with an assembling plate, and the assembling plates are fixed inside the lower die seat; the convenience is installed second nitrogen gas spring and third nitrogen gas spring, conveniently assembles the equipment, the later maintenance of being convenient for.

Advantageous effects

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses a pivot, postpone reset block, first kicking block, second kicking block, coil spring and second nitrogen spring, the reset time of the interior flitch of mould in can delaying time, let the border will be ejecting with the product after, the interior flitch of pressing just begins to reset to avoid the product to appear the phenomenon of deformation at the in-process of drawing, increase the qualification probability of product, improve the quality of product.

Drawings

Fig. 1 is a schematic overall three-dimensional structure diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of an integrally separated three-dimensional structure according to an embodiment of the present invention;

FIG. 3 is a schematic view of an integrally separated three-dimensional structure according to an embodiment of the present invention;

FIG. 4 is a schematic top view of an embodiment of the present invention;

FIG. 5 isbase:Sub>A cross-sectional view taken at A-A of FIG. 4 in accordance with an embodiment of the present invention;

fig. 6 is a schematic structural view of the mold opening state of fig. 5 according to an embodiment of the present invention;

FIG. 7 is a cross-sectional view taken at B-B of FIG. 4 in accordance with an embodiment of the present invention;

fig. 8 is a schematic view of the structure of the mold opening state in fig. 7 according to an embodiment of the present invention.

The labels in the figures are: 1. an upper die holder; 2. a material removing plate; 3. drawing a female die; 4. drawing a male die; 5. a lower die holder; 6. a first nitrogen spring; 7. a blank holder; 8. a first top block; 9. a second top block; 10. a coil spring; 11. a delay reset block; 12. a rotating shaft; 13. a second gas spring; 14. a third nitrogen spring; 15. producing a product; 16. a fixing plate; 17. mounting a plate; 18. upsetting blocks; 19. and assembling the plate.

Detailed Description

The drawing and stamping die for controlling the delayed reset of the pressure plate comprises an upper die holder 1 and a lower die holder 5, wherein a stripper plate 2 and a drawing female die 3 are respectively installed in the upper die holder 1, a drawing male die 4 and a blank holder 7 which are matched with the drawing female die 3 are installed in the lower die holder 5, a first nitrogen spring 6 is installed in the upper die holder 1, two ends of the lower die holder 5 are respectively provided with a rotating shaft 12, a delay reset block 11 is installed on the rotating shaft 12, a first ejector block 8 and a second ejector block 9 are respectively arranged on two sides of the lower end of the delay reset block 11, a second nitrogen spring 13 is installed on the lower portion of the first ejector block 8, a spiral spring 10 is arranged on the lower portion of the second ejector block 9, and a third nitrogen spring 14 for carrying out the back jacking on the blank holder 7 is arranged in the lower die holder 5.

For the present embodiment, the specification of the delay reset block 11 may be set as needed.

Wherein a product 15 is arranged between the drawing female die 3 and the drawing male die 4.

In addition, a fixed plate 16 is arranged at the top end of the first nitrogen spring 6, an installation plate 17 is arranged right above the fixed plate 16, and the installation plate 17 is fixedly installed inside the upper die holder 1.

In addition, all be equipped with the mound piece 18 between the adjacent first nitrogen spring 6, two pilot holes have all been seted up to the equal symmetry on every mound piece 18.

In addition, a gap is formed between the bottom end of the first nitrogen spring 6 and the drawing die 3, and the length of the extended end of the first nitrogen spring 6 is greater than the gap.

In addition, the bottom parts of the second nitrogen spring 13 and the third nitrogen spring 14 are both provided with a fitting plate 19, and the fitting plate 19 is fixed inside the lower die holder 5.

The drawing stamping die for controlling the delayed resetting of the pressure plate has the integral three-dimensional structure shown in figure 1 and the integral separated three-dimensional structure shown in figure 2.

As shown in fig. 6, in the downward movement process of the upper die holder 1, the stripper plate 2 and the drawing die 3 position the product 15 first, the upper die holder 1 continues to move downward, the first nitrogen spring 6 starts to compress to press the product 15 on the drawing punch 4, meanwhile, the drawing die 3 and the blank holder 7 press the product 15 to do drawing work downward, the first ejector block 8 starts to contact the second nitrogen spring 13 along with the downward movement of the blank holder 7, because the force of the second nitrogen spring 13 is greater than the spiral spring 10 below the second ejector block 9, the first ejector block 8 is forced by the second nitrogen spring 13 to rotate the delay reset block 11 around the shaft 12, at this time, the delay reset block 11 rotates to the position of the die closing state in fig. 5, and abuts against the stripper plate 2, the die continues to move downward to complete the drawing action; after the drawing operation is finished, the upper die base 1 starts to move upwards, the blank holder 7 starts to push back under the action of the third nitrogen spring 14, the delay reset block 11 abuts against the stripper plate 2 at the moment and is not reset, the die continues to move upwards, the blank holder 7 returns to the die opening state, the product 15 is separated from the drawing male die 4 at the moment and is in a natural state, the delay reset block 11 is gradually separated from the stripper plate 2, the stripper plate 2 starts to reset, the second nitrogen spring 13 is separated from the first ejector block 8 at the moment, the second ejector block 9 pushes the delay reset block 11 oppositely to the die opening state under the action of the spiral spring 10, the die moves upwards to reach the highest point of the punch press, and one working process is finished.

As shown in fig. 5 and 6, the delayed reset block 11 can be used for abutting against the stripper plate 2 to prevent the stripper plate from resetting, so that the reset time of the stripper plate in the upper die can be delayed, the phenomenon that a drawn workpiece is deformed is avoided, and the drawing and stamping quality is improved.

All the technical features in the embodiment can be freely combined according to actual needs.

The above-mentioned embodiment does the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.

Claims

1. The utility model provides a drawing stamping die that control pressure flitch time delay was reset, this drawing stamping die that control pressure flitch time delay was reset includes upper die base (1) and die holder (5), its characterized in that: the drawing die is characterized in that a stripper plate (2) and a drawing female die (3) are respectively installed in an upper die base (1), a drawing male die (4) and a blank holder (7) which are matched with the drawing female die (3) are installed in a lower die base (5), a first nitrogen spring (6) is installed in the upper die base (1), rotating shafts (12) are respectively arranged at two ends of the lower die base (5), a delay reset block (11) is installed on the rotating shafts (12), a first ejector block (8) and a second ejector block (9) are respectively arranged on two sides of the lower end of the delay reset block (11), a second nitrogen spring (13) is installed on the lower portion of the first ejector block (8), a spiral spring (10) is arranged on the lower portion of the second ejector block (9), and a third nitrogen spring (14) used for carrying out back jacking on the blank holder (7) is arranged in the lower die base (5).

2. The drawing stamping die for controlling the delayed resetting of the pressure plate according to claim 1, characterized in that: and a product (15) is arranged between the drawing female die (3) and the drawing male die (4).

3. The drawing stamping die for controlling the delayed resetting of the pressure plate as claimed in claim 1, wherein: the top of first nitrogen spring (6) is equipped with fixed plate (16), be equipped with mounting panel (17) directly over fixed plate (16), and mounting panel (17) fixed mounting is in the inside of upper die base (1).

4. The drawing stamping die for controlling the delayed resetting of the pressure plate as claimed in claim 1, wherein: and each adjacent first nitrogen spring (6) is provided with a blocking block (18), and each blocking block (18) is symmetrically provided with two assembling holes.

5. The drawing stamping die for controlling the delayed resetting of the pressure plate as claimed in claim 1, wherein: a gap is formed between the bottom end of the first nitrogen spring (6) and the drawing die (3), and the length of the extending end of the first nitrogen spring (6) is larger than the gap.

6. The drawing stamping die for controlling the delayed resetting of the pressure plate as claimed in claim 1, wherein: the bottom of the second nitrogen spring (13) and the bottom of the third nitrogen spring (14) are both provided with an assembling plate (19), and the assembling plate (19) is fixed inside the lower die holder (5).