CN202701134U - Stamping composite die - Google Patents

Abstract

The utility model discloses a stamping composite mold, which comprises an upper mold and a lower mold, the guide post of the lower mold is covered with a guide sleeve of the upper mold; the center of the upper mold is also provided with a bottom hole punch, The position where the upper mold avoids the bottom hole punch is provided with a flange hole punch. Concave die and blanking die. Through the above method, the utility model can combine blanking, deep drawing, bottom hole punching, flange hole punching and trimming at one time, so that only one pair of molds is needed, and blanking and deep drawing are completed before punching and trimming. The compounding of the five processes is successfully realized, which meets the requirements of modern production with high precision, low cost and high benefit.

Description

A stamping composite mold

technical field

The utility model relates to the field of mold manufacturing, in particular to a stamping composite mold. the

Background technique

At present, the basic stamping process for forming a deep-drawing part with a small hole at the bottom and a flange is: blanking, deep drawing, punching, and edge trimming. There are four specific forming process schemes as follows: 

(1) Single process forming of blanking, deep drawing, punching and edge trimming;

(2) Blanking and punching are compounded first, and then deep drawing and edge trimming are formed in a single process;

(3) Blanking and deep drawing are compounded first, and then the bottom hole is punched and the trimming is compounded.

(4) Blanking, deep drawing, and punching holes are compounded first, and then trimmed to form;

Through analysis, scheme (1) has a simple mold structure, but requires 4 sets of molds, which is very inefficient and cannot produce high-precision stamping parts; schemes (2), (3), and (4) have slightly more complicated structures and require 2 The efficiency and accuracy of molds above the pair are greatly improved. These four schemes are far from meeting the requirements of modern production with high precision, low cost and high benefit.

Contents of the invention

The technical problem mainly solved by the utility model is to provide a stamping compound mold, which can make blanking, deep drawing, bottom hole punching, flange hole punching, and edge trimming combined at one time, so that only one pair of molds is needed for blanking, deep drawing It is completed before punching and trimming, and the composite of five processes is successfully realized, which meets the requirements of modern production with high precision, low cost and high benefit. the

In order to solve the above-mentioned technical problems, a technical solution adopted by the utility model is: provide a stamping composite mold, the stamping composite mold includes an upper mold and a lower mold, the guide post of the lower mold is covered with a guide sleeve of the upper mold; It also includes that the center of the upper mold is provided with a bottom hole punch, the upper mold avoids the position of the bottom hole punch and is provided with a flange hole punch, and the flange hole punch is covered with an upper convex die; the description also includes that the lower mold is provided with a bottom hole punch and a flange hole punch. The lower convex and concave mold corresponding to the upper convex and concave mold, the lower convex and concave mold and the blanking concave mold. the

Preferably, the upper mold 16 also includes an upper mold base, an upper backing plate, a punch fixing plate, an upper convex and concave mold fixing plate, a discharge rubber, a discharge plate, a deep drawing die, a pusher plate, and a small rubber block , connecting the push rod and the push plate, the upper backing plate, the punch fixing plate, the upper punch and die fixing plate, the discharge rubber and the discharge plate are sequentially superimposed and fixed on the lower plane of the upper die seat; the upper punch and die fixing plate An upper convex die is fixed on the top, and a deep drawing die is set inside the upper convex die, a small rubber block is arranged between the upper plane of the deep drawing die and the fixed plate of the punch, and a pusher plate is arranged inside the deep drawing die; A bottom hole punch and a flange hole punch are fixed on the punch fixing plate, and the bottom hole punch and the flange hole punch pass through the small rubber block, the deep drawing die and the pusher plate in sequence; There is a push plate, the lower plane of the push plate is in contact with the upper end of the connecting push rod, and the connecting push rod passes through the upper backing plate, the punch fixing plate, the upper convex and concave die fixing plate, the small rubber block and the deep drawing die in sequence, and then abuts against the pushing plate superior. the

Preferably, the lower die also includes a lower die base, a lower backing plate, a blanking die, a small backing plate and a top plate, and the lower backing plate and the blanking die are sequentially superimposed and fixed on the upper plane of the lower die base There is a lower convex and concave die in the middle of the blanking die, a small backing plate is provided between the lower convex and concave die one and the lower backing plate, the lower convex and concave die is covered with a lower convex and concave die, and the lower bottom surface of the lower convex and concave die is against the small backing plate An ejector plate is arranged between the upper and lower convex dies and the blanking die. the

The beneficial effects of the utility model are: the utility model is a stamping composite mold, which can make blanking, deep drawing, punching bottom hole, punching flange hole, and edge trimming compound at one time, so that only one pair of molds is needed, blanking, drawing The depth is completed before punching and trimming, and the composite of five processes is successfully realized, which meets the requirements of modern production with high precision, low cost and high benefit. the

Description of drawings

Fig. 1 is a structural schematic diagram of a preferred embodiment of a stamping composite die of the present invention. the

Detailed ways

The preferred embodiments of the utility model will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, so as to make a clearer definition of the protection scope of the utility model. the

Please refer to Fig. 1, the utility model embodiment comprises:

A stamping composite die, the stamping composite die includes an upper die 16 and a lower die 33, the guide post 36 of the lower die 33 is covered with the guide sleeve 18 of the upper die 16; the center of the upper die 16 is also provided with a bottom Hole punch 9, upper mold 16 avoids the position of bottom hole punch 9 and is provided with flange hole punch 4, and flange hole punch 4 is overcoated with upper punch and die 3; Described also includes lower mold 33 and is provided with bottom hole punch 9, flange hole punch 4 and The lower convex and concave mold 1 corresponding to the upper convex and concave mold 4, the lower convex and concave mold 26 and the blanking concave mold 23.

The upper mold 16 also includes an upper mold base 19, an upper backing plate 6, a punch fixing plate 5, an upper convex and concave mold fixing plate 2, a discharge rubber 20, a discharge plate 22, a deep drawing die 21, and a pusher plate 1 , small rubber block 15, connecting push rod 10 and push plate 13, the upper backing plate 6, the punch fixing plate 5, the upper convex and concave die fixing plate 2, the discharge rubber 20 and the discharge plate 22 are superimposed successively and fixed on the upper The lower plane of the mold base 19; the upper convex and concave mold fixing plate 2 is fixed with an upper convex and concave mold 3, and the upper convex and concave mold 3 is provided with a drawing die 21, and the upper plane of the drawing die 21 and the punch fixing plate 5 A small rubber block 15 is provided, and a pusher plate 1 is provided on the lower plane of the drawing die 21; a bottom hole punch 9 and a flange hole punch 4 are fixed on the punch fixing plate 5, and the bottom hole punch 9 and the flange hole punch 4 are passed through in turn. Too small rubber block 15, deep drawing die 21 and pusher plate 13; said also includes a push plate 13 between the upper backing plate 6 and the upper die base 19, the lower plane of the push plate 13 is in contact with the upper end of the connecting push rod 10 , the connecting push rod 10 passes through the upper backing plate 6, the punch fixed plate 5, the upper convex and concave mold fixed plate 2, the small rubber block 15 and the deep drawing die 21, and then abuts on the pusher plate 1. the

The lower die 33 also includes a lower die base 34, a lower backing plate 35, a blanking die 23, a small backing plate 32 and a top plate 25, and the lower backing plate 35 and the blanking die 23 are sequentially superimposed and fixed on the lower die. Die base 34 is on the plane, blanking die 23 is provided with a lower convex die 1 31, a small backing plate 32 is provided between the lower convex die 1 31 and the lower backing plate 35, and the lower convex die 1 31 is covered with a lower convex die 26 , The lower bottom surface of the lower convex and concave die 26 is against the small backing plate 32, and a top plate 25 is arranged between the lower convex and concave die 26 and the blanking die 23. the

The working mode of a stamping composite die of the utility model is: the slide block of the press machine is not marked in the drawing and is driven by the upper die to move downward, the unloading plate 22 first touches the processed blank placed on the blanking die 23, The unloading rubber 20 is continuously compressed, and the unloading plate 22 presses the blank. Since the upper end surface A of the upper convex and concave die 3 is lower than the upper end surface B of the blanking die 23 by about one material thickness, the upper mold goes down again, that is, the upper convex and concave die 3 Move down about one material thickness to complete the blanking; the upper die continues to move downward to start deep drawing, and the top plate 25 and the lower convex and concave die 26 are used to hold the edge during deep drawing. As the drawing progresses, when the upper die goes down When the lower surface of the lower convex and concave die 26 touches the upper surface of the small backing plate 32, the lower convex and concave die 26 and the drawing die 21 stop moving, and the drawing ends; the upper die drives the upper convex and concave die 3 to continue downward and start trimming. At the same time, the bottom hole punch 9 touches the blank and starts punching the bottom hole, and the flange hole punch 4 touches the blank and starts punching the flange hole until the upper and lower dies are completely closed. Finish;

On the contrary during the return journey, the press drives the upper die to move upwards, mainly through the discharge plate 22 and the top plate 25 to complete the discharge of waste and blanks, and through the lower convex and concave die 26 and the push plate 1 to complete the top piece and push piece respectively.

The utility model is a stamping composite mold, which can make blanking, deep drawing, bottom hole punching, flange hole punching, and edge trimming combined at one time, so that only one pair of molds is needed, and blanking, deep drawing are before punching and edge trimming Completed, successfully realized the compounding of five processes, which met the requirements of modern production with high precision, low cost and high benefit.

The above is only an embodiment of the utility model, and does not limit the patent scope of the utility model. Any equivalent structure or equivalent process conversion made by using the utility model specification and accompanying drawings, or directly or indirectly used in other Related technical fields are all included in the patent protection scope of the present utility model in the same way. the

Claims (3)

1. A stamping composite mold, characterized in that: the stamping composite mold comprises a patrix and a lower die, the guide post of the patrix is covered with a guide sleeve of the patrix; the center of the patrix is also provided with a bottom hole punch , the upper die avoids the position of the bottom hole punch to be provided with a flange hole punch, and the flange hole punch overcoat has an upper convex and concave die; the description also includes that the lower mold is provided with a lower convex and concave die corresponding to the bottom hole punch, the flange hole punch and the upper convex and concave die. Lower convex die and blanking die. 2. A kind of stamping compound mold according to claim 1, it is characterized in that: described upper mold also comprises upper mold base, upper backing plate, punch fixing plate, upper convex and concave mold fixing plate, unloading rubber, unloading rubber Plate, deep drawing die, pusher plate, small rubber block, connecting push rod and push plate, the upper backing plate, punch fixing plate, upper punch and die fixing plate, discharge rubber and discharge plate are superimposed and fixed in sequence On the lower plane of the upper die base; the upper convex and concave die fixing plate is fixed with the upper convex and concave die, the upper convex and concave die is covered with a drawing die, and a small rubber block is arranged between the upper plane of the drawing die and the punch fixing plate , the drawing die is provided with a pusher plate; the punch fixing plate is fixed with a bottom hole punch and a flange hole punch, and the bottom hole punch and the flange hole punch pass through the small rubber block, the deep drawing die and the pusher plate in sequence; It also includes that a push plate is arranged between the upper backing plate and the upper die base, the lower plane of the push plate is in contact with the upper end of the connecting push rod, and the connecting push rod passes through the upper backing plate, the punch fixing plate, the upper convex and concave die fixing plate, After the small rubber block and the deep-drawing die are pressed against the push piece plate. 3. A kind of stamping composite die according to claim 1, characterized in that: the lower die also includes a lower die base, a lower backing plate, a blanking die, a small backing plate and an ejector plate, and the lower backing plate The plate and the blanking die are sequentially superimposed and fixed on the lower die base. There is a lower convex and concave die in the middle of the blanking die. A small backing plate is provided between the lower convex and concave die and the lower backing plate. Die, the lower bottom surface of the lower convex and concave die is against the small backing plate, and a top plate is arranged between the lower convex and concave die and the blanking die.

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