CN212792681U - Full-automatic punching and blanking die - Google Patents

Abstract

The utility model discloses a full-automatic punching and blanking die, which comprises an upper die and a lower die; the lower die is provided with at least three movable positioning pins which are respectively positioned on the left side and the right side of the metal plate and on the front transmission side; the upper die comprises an upper die plate, an upper backing plate, an upper fixing plate and a concave die plate which are sequentially arranged from top to bottom; the lower die comprises a lower die machine seat plate, a lower die plate, a lower fixing plate and a convex die plate which are arranged from bottom to top in sequence; a plurality of material straightening springs are arranged between the lower fixing plate and the convex template; a punch with a hole is arranged in the middle of the concave template; the convex template is provided with a punching hole; at least one air hole communicated with an external high-pressure air source is arranged in the cavity of the groove plate; the punching and the shape cutting only use one-time pressing of the upper die, so that the utilization of the die is maximized, and the cost is saved; the air holes are communicated with a high-pressure air source, so that the finished products are automatically conveyed; utilize the locating pin, realize the accurate full automatic feeding of panel to improve production efficiency by a wide margin and whole journey need not too much manual intervention, the security is higher.

Description

Full-automatic punching and blanking die

Technical Field

The utility model relates to a technical field that panel punched a hole especially relates to a full-automatic unloading mould that punches a hole.

Background

In the machining production, holes or grooves are often required to be formed in a metal plate, and a punching die is usually adopted for machining; the traditional die needs manual feeding and blanking, the operation mode is high in labor intensity and labor cost, and the traditional die cannot be butted with a production line, so that the production efficiency is seriously influenced; the existing pressing die cannot complete two processing steps of cutting the appearance and punching at one time in the stamping process, so that the cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves is: the utility model provides a full-automatic unloading mould that punches a hole can realize punching a hole and cut appearance once-through press and accomplish and can dock with the assembly line.

In order to solve the main technical problems, the following technical scheme is adopted:

a full-automatic punching and blanking die comprises an upper die and a lower die; a guide mechanism is arranged between the upper die and the lower die; the lower die is provided with at least three movable positioning pins which are respectively positioned on the left side and the right side of the metal plate and on the front transmission side; the upper die comprises an upper die plate, an upper backing plate, an upper fixing plate and a concave die plate which are sequentially arranged from top to bottom; the lower die comprises a lower die machine seat plate, a lower die plate, a lower fixing plate and a convex die plate which are arranged from bottom to top in sequence; a plurality of material straightening springs are arranged between the lower fixing plate and the convex template; a punch with a hole is arranged in the middle of the concave template; the punch of the male die plate is matched with the cavity of the female die plate for use, and the male die is correspondingly provided with a punched hole which can penetrate through the lower die; at least one air hole communicated with an external high-pressure air source is arranged in the cavity of the groove plate.

Preferably, the two air holes are respectively positioned at two opposite sides of the top surface of the cavity.

Preferably, a control valve which is controlled to be switched on and off through a control system is arranged between the air hole and an external high-pressure air source.

Preferably, the guide mechanism comprises a limiting column and an outer guide column which are positioned on the lower die plate, an inner guide column which is positioned on the lower fixing plate and penetrates through the convex die plate, an outer guide sleeve which is positioned on the upper die plate, and an inner guide hole which is positioned on the concave die plate; the outer guide pillar is matched with the outer guide sleeve for use; the inner guide post is matched with the inner guide hole for use.

Preferably, the number of the limiting columns and the number of the outer guide columns are two; the limiting columns and the outer guide columns are distributed near four corners of the lower fixing plate; two spacing posts are arranged diagonally.

Preferably, the positioning pin comprises a pin shaft and a return spring; the pin shaft comprises a positioning end and a power end; the convex template is provided with a stepped hole which can penetrate through the convex template; the small-diameter end of the stepped hole can enable the positioning end to penetrate through, and the large-diameter end can enable the power end to penetrate through; a check ring is fixed at the large-diameter end of the stepped hole; the retainer ring is annular and only can enable the power end to pass through; a stop block is arranged between the positioning end and the power end; the reset spring is sleeved outside the power end and fixed between the stop block and the check ring; and the power end controls the pin shaft to lift through an electromagnetic switch.

Preferably, the upper die plate is provided with a plurality of upper die lifting rings; the lower die plate is provided with a plurality of lower die lifting rings.

Compared with the prior art, the utility model discloses be applied to one shot forming and the utensil that punches a hole to sheet metal and have following advantage:

the punching and the shape cutting only use one-time pressing of the upper die, so that the utilization of the die is maximized, and the cost is saved; be provided with the gas pocket in the die cavity of cavity die plate, the gas pocket can be through communicating with each other with high pressurized air source, realizes full-automatic material loading, utilizes locating pin and feed mechanism to make whole blanking production line production efficiency that punches a hole improve by a wide margin and whole journey need not too much intervention of manpower, and the security is higher.

Drawings

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

Fig. 1 is a schematic structural diagram of a product provided in an embodiment of the present invention;

fig. 2 is a schematic diagram of a cutting route of a metal plate according to an embodiment of the present invention;

fig. 3 is a schematic view of the overall structure provided by the embodiment of the present invention;

fig. 4 is a schematic structural view of an upper die provided in an embodiment of the present invention;

fig. 5 is a schematic structural view of a lower die according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a lifter spring according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a normal working state (power-off state) of the positioning pin according to the embodiment of the present invention;

fig. 8 is a schematic structural view of a power-on state of the positioning pin according to the embodiment of the present invention.

In the figure: 1 is an upper die;

2 is a lower die;

3 is a positioning pin, 31 is a positioning end, 32 is a power end, 33 is an electromagnetic switch, 34 is a stop block, 35 is a check ring, and 36 is a return spring;

4 is an upper die plate, 5 is an upper backing plate, and 6 is an upper fixing plate;

7 is a concave template, 71 is a cavity and 72 is a hole punch;

8 is a lower die machine seat plate, 9 is a lower die plate and 10 is a lower fixing plate;

11 is a convex template, 111 is a convex mold punch, 112 is a punching hole, and 113 is a stepped hole;

12 is an air hole, 13 is a limit column, 14 is an outer guide column, 15 is an outer guide sleeve, 16 is an inner guide column, 17 is an inner guide hole, 18 is an upper die hanging ring, 19 is a lower die hanging ring, and 20 is a lifter spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection accessories according to specific implementation conditions.

Referring to fig. 1-7, a full-automatic punching and blanking die includes an upper die 1 and a lower die 2; the upper die 1 and the lower die 2 are matched for use, the upper die 1 can move up and down relative to the lower die 2 under the action of a lifting mechanism, and the lifting mechanism is arranged according to the prior art; the plate to be processed is a continuous metal plate; the metal plate is fed between the upper die 1 and the lower die 2 under the action of the feeding mechanism.

The upper die 1 comprises an upper die plate 4, an upper backing plate 5, an upper fixing plate 6 and a concave die plate 7 which are sequentially arranged from top to bottom; the upper die plate 4 is fixed with the lifting mechanism and drives the upper die 1 to lift; the cross sections of the upper backing plate 5, the upper fixing plate 6 and the concave template 7 are consistent in size; the cross-sectional dimension of the upper die plate 4 is larger than the cross-sectional dimension of the cavity plate 7; the connection among the upper die plate 4, the upper backing plate 5, the upper fixing plate 6 and the cavity plate 7 is according to the prior art; the middle of the concave die plate 7 is provided with a cavity 71 which is concave towards the upper die 1; a punch 72 with a hole is arranged in the middle of the cavity 71; the size, number and position of the hole punches 72 are set according to the requirements of the workpiece; at least one air hole 12 is arranged in the cavity 71; the air hole 12 is communicated with an external high-pressure air source through a pipeline, and a control valve is arranged between the air hole 12 and the high-pressure air source and can be opened and closed under the action of a control system; the air hole 12 is positioned on the top surface of the cavity 71, the air hole 12 releases high-pressure air, the product after being cut into the shape is separated from the cavity 71, and at the moment, the product can be brought to a position far away from the position between the upper die 1 and the lower die 2 by virtue of auxiliary blanking equipment; unloading auxiliary assembly also can simply adopt a horizontal telescopic machanism according to prior art, goes up mould 1 promptly and drives the product and keep away from lower mould 2, and telescopic machanism extends one end and goes up mould 1 under and be located lower mould 2 directly over, and the gas in gas pocket 12 blows off the product to telescopic machanism this moment, and telescopic machanism receives to keep away from after the product and goes up between mould 1 and the lower mould 2.

The lower die 2 comprises a lower die machine seat plate 8, a lower die plate 9, a lower fixing plate 10 and a convex die plate 11 which are arranged from bottom to top in sequence; the lower die machine seat plate 8 is fixed on the machine seat platform, and the base plate of the lower die 2, the lower die plate 9, the lower fixing plate 10 and the convex die plate 11 are connected according to the prior art; the cross section of the lower die machine seat plate 8 is larger than that of the lower die plate 9; the cross-sectional dimension of the lower die plate 9 is larger than that of the lower fixing plate 10; the cross section of the lower fixing plate 10 is consistent with that of the convex template 11; the top of the male die plate 11 is provided with a male die punch 111 protruding towards the outer side of the lower die 2, and the male die punch 111 is matched with the die cavity 71 for use to cut the product appearance of the plate; the male die punch 111 is also provided with a punching hole 112 longitudinally penetrating through the lower die 2, and the punching hole 112 is matched with the hole punch 72 to be used for punching a pair of plates; a plurality of material straightening springs 20 are arranged between the lower fixing plate 10 and the convex template 11; the material straightening spring 20 surrounds the punch head 111 for one circle; the lifter spring 20 can push the molded product to the interior of the cavity plate 7 and the cavity 71.

A guide mechanism for ensuring the matching accuracy of the upper die 1 and the lower die 2 is arranged between the upper die 1 and the lower die 2; the guide mechanism comprises a limiting column 13, an outer guide column 14, an outer guide sleeve 15, an inner guide column 16 and an inner guide hole 17; the limiting column 13 is positioned on the lower die plate 9, and the limiting column 13 prevents the die from being damaged when the die closing height is set wrongly; the outer guide posts 14 are also fixed to the lower die plate 9; two outer guide posts 14 and two limiting posts 13 are respectively positioned at the outer sides of four corners of the convex template 11; the two outer guide posts 14 are distributed diagonally, and the two limiting posts 13 are also distributed diagonally; the outer guide sleeve 15 is fixed on the upper die plate 4; the outer guide sleeves 15 are matched with the outer guide pillars 14 in a one-to-one correspondence manner; the inner guide hole 17 is positioned on the concave template 7; the inner guide holes 17 are correspondingly matched with the inner guide posts 16 one by one; the outer guide post 14 and the outer guide sleeve 15, and the inner guide post 16 and the inner guide sleeve ensure the matching accuracy of the upper die 1 and the lower die 2.

The male die plate 11 is provided with three stepped holes 113; the three stepped holes 113 are movably provided with positioning pins 3 capable of ascending and descending; the three positioning pins 3 are respectively positioned in front of the metal plate and at the left side and the right side of the metal plate in the transmission direction; the positioning pin 3 is used for positioning the automatically-fed metal plate; the positioning pin 3 comprises a pin shaft and a return spring 36; one end of the pin shaft is a positioning end 31 used for extending out of the upper surface of the punch 111 of the male die, and the other end of the pin shaft is a power end 32 connected with a power mechanism; the positioning end 31 has a larger cross-sectional dimension than the power end 32; a stop block 34 is arranged between the positioning end 31 and the power end 32; the positioning end 31, the power end 32 and the stopper 34 are integrally formed; the positioning end 31 has a larger cross-sectional dimension than the power end 32; the stop 34 has a cross-sectional dimension greater than the power end 32; the size of the cross section of the stop block 34 is similar to that of the large-diameter end of the stepped hole 113; the stopper 34 is axially movable back and forth along the large-diameter end of the stepped hole 113; the size of the small-diameter end of the stepped hole 113 is close to that of the positioning end 31 of the positioning pin 3, and the positioning end 31 of the positioning pin 3 can axially move back and forth along the small-diameter end of the stepped hole 113; the end surface of the large-diameter end of the stepped hole 113 far away from the small-diameter end is provided with a retainer ring 35; the retainer ring 35 is annular, the outer diameter of the retainer ring 35 is consistent with the inner diameter of the large-diameter end of the stepped hole 113, and the inner diameter of the retainer ring 35 is consistent with the power end 32; the reset spring 36 is sleeved outside the power end 32, and two ends of the reset spring are respectively connected with the stop block 34 and the retainer ring 35; when power end 32 is connected with electromagnetic switch 33, power end 32 drives positioning end 31 to descend, return spring 36 is compressed, positioning end 31 is completely retracted into stepped hole 113, and at the moment, the plate can move forward under the action of feeding mechanism; when the power is lost, the positioning end 31 extends out of the stepped hole 113 under the action of the return spring 36, so that the advance of the sheet material is limited.

In order to facilitate the disassembly of the mould, the upper mould plate 4 is provided with a plurality of upper mould lifting rings 18; the lower die plate 9 is provided with a plurality of lower die lifting rings 19.

The utility model discloses a working process does: the metal plate is conveyed between the upper die 1 and the lower die 2 under the action of the feeding mechanism; when the foremost side of the plate abuts against the positioning pin 3 positioned on the front side of the plate, the plate stops moving; the upper die 1 descends with the cavity 71; under the action of the hole punch 72 and the male die punch 111, punching and forming of the plate are completed at one time, the formed product is located in the cavity 71 and ascends along with the ascending of the upper die 1, in the process, the blanking auxiliary equipment moves to a position between the upper die 1 and the lower die 2, the air hole 12 gives downward impact force to the product under the action of the control valve, and the product falls to the blanking auxiliary equipment; meanwhile, the positioning pin 3 is completely contracted into the convex template 11 under the action of the electromagnetic switch 33, the plate is conveyed forwards under the action of the feeding mechanism, the positioning pin 3 extends out of the convex template 11, after the rearmost edge of the appearance hole of the plate supports against the positioning pin 3, the blanking auxiliary equipment is far away from the position between the upper die 1 and the lower die 2, the upper die 1 moves towards the lower die 2 again, and continuous automatic punching and blanking are achieved.

It should be noted that, in the present invention, "upper, lower, left, right, inner and outer" are defined based on the relative position of the components in the drawings, and are only for the clarity and convenience of describing the technical solution, it should be understood that the application of the directional terms does not limit the protection scope of the present application.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or some of the technical features may be substituted by equivalent substitutions, modifications and the like, all of which are within the spirit and principle of the present invention.

Claims (7)

1. The utility model provides a full-automatic unloading mould that punches a hole which characterized in that: comprises an upper die and a lower die; a guide mechanism is arranged between the upper die and the lower die; the lower die is provided with at least three movable positioning pins which are respectively positioned on the left side and the right side of the metal plate and on the front transmission side; the upper die comprises an upper die plate, an upper backing plate, an upper fixing plate and a concave die plate which are sequentially arranged from top to bottom; the lower die comprises a lower die machine seat plate, a lower die plate, a lower fixing plate and a convex die plate which are arranged from bottom to top in sequence; a plurality of material straightening springs are arranged between the lower fixing plate and the convex template; a punch with a hole is arranged in the middle of the concave template; the punch of the male die plate is matched with the cavity of the female die plate for use, and the male die is correspondingly provided with a punched hole which can penetrate through the lower die; at least one air hole communicated with an external high-pressure air source is arranged in the cavity of the concave die plate.

2. The full-automatic punching and blanking die of claim 1, characterized in that: the gas hole has two and is located the relative both sides of die cavity top surface respectively.

3. The full-automatic punching and blanking die of claim 1, characterized in that: and a control valve which is controlled to be switched on and off through a control system is arranged between the air hole and an external high-pressure air source.

4. The full-automatic punching and blanking die of claim 1, characterized in that: the guide mechanism comprises a limiting column and an outer guide column which are positioned on the lower die plate, an inner guide column which is positioned on the lower fixing plate and penetrates through the convex die plate, an outer guide sleeve which is positioned on the upper die plate, and an inner guide hole which is positioned on the concave die plate; the outer guide pillar is matched with the outer guide sleeve for use; the inner guide post is matched with the inner guide hole for use.

5. The full-automatic punching and blanking die of claim 4, characterized in that: two limiting columns and two outer guide columns are arranged; the limiting columns and the outer guide columns are distributed near four corners of the lower fixing plate; two spacing posts are arranged diagonally.

6. The full-automatic punching and blanking die of claim 1, characterized in that: the positioning pin comprises a pin shaft and a return spring; the pin shaft comprises a positioning end and a power end; the convex template is provided with a stepped hole which can penetrate through the convex template; the small-diameter end of the stepped hole can enable the positioning end to penetrate through, and the large-diameter end can enable the power end to penetrate through; a check ring is fixed at the large-diameter end of the stepped hole; the retainer ring is annular and only can enable the power end to pass through; a stop block is arranged between the positioning end and the power end; the reset spring is sleeved outside the power end and fixed between the stop block and the check ring; and the power end controls the pin shaft to lift through an electromagnetic switch.

7. The full-automatic punching and blanking die of claim 1, characterized in that: the upper die plate is provided with a plurality of upper die lifting rings; the lower die plate is provided with a plurality of lower die lifting rings.

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