CN206326006U - A kind of punching-pressing composite mould - Google Patents

Abstract

The utility model discloses a stamping composite die, which comprises an upper mold base and a lower mold base which are arranged correspondingly. A punching punch, a punching and blanking convex and concave die, and a punching pulley are sequentially arranged under the upper mold base from the inside to the outside. Deep convex and concave molds, above the lower mold base, there are sequentially arranged blanking and punching convex and concave molds, drawing and punching convex and concave molds, and blanking concave and convex molds from the inside to the outside. The mold is located between the blanking die and the drawing punching die, and the punching and blanking die is located between the blanking die and the drawing die. The punching punch is arranged at the through hole in the middle of the blanking punching punch and concave die. The utility model discloses a stamping composite mold, which can make the punching, blanking, and deep-drawing processes compound at one time, and punch out three different workpieces with one mold, thereby realizing the mixed stamping of the workpieces. It meets the requirements of modern production with high precision, low cost and high efficiency.

Description

A stamping composite mold

technical field

The utility model relates to the technical field of mechanical processing equipment, in particular to a stamping composite die.

Background technique

In the stamping process, in one stroke of the press, the mold that completes two or more processes at the same station is called a composite mold, which has the characteristics of high positioning accuracy of the inner shape. Due to the increasingly sophisticated requirements of molded parts, high production efficiency and high material utilization requirements, the multi-functional composite molds in the mold industry will be further developed, especially the composite of multi-process and the composite of different workpieces stamped by one mold.

At present, for a cylindrical deep-drawing part with a round hole in the middle and two circular gaskets, the basic stamping process for forming these three workpieces separately is: blanking, punching, and deep-drawing. According to the nature of the process: punching and blanking belong to the separation process, and deep drawing belongs to the forming process. Specifically, there are several forming process schemes:

Deep-drawn parts with round holes in the middle:

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

(2) Punching and blanking are combined first, and then deep drawing is formed in a single process;

(3) Blanking and deep drawing are compounded first, and then punched to form.

(4) Compound forming by punching, blanking and deep drawing;

Round spacers:

(5) Single process forming of blanking and punching;

(6) Punching, blanking compound forming.

Through the analysis, the processing of the cylindrical deep-drawing part with a round hole in the middle and the two circular gaskets is completed. If the single-process die forming of schemes (1) and (5) is adopted, the mold structure is simple, but a total of 7 sets of molds are required , the efficiency is low, and the accuracy requirements of the inner shape of the workpiece cannot be guaranteed; schemes (2), (3), (4), and (6) require more than 2 sets of molds, the mold structure is slightly more complicated, and the efficiency and precision are improved, but the material The utilization rate is low, but these six schemes are far from meeting the requirements of modern production with high precision, low cost and high benefit.

Utility model content

In order to solve the problems existing in the prior art, the utility model provides a stamping composite die.

The purpose of the utility model is realized through the following technical solutions:

A kind of stamping composite die, comprises the upper mold base 17 and the lower mold base 1 that are arranged correspondingly, is provided with punching punch 23, punching and blanking convex and concave die 25 and punching pulley successively below described upper mold base 17 from inside to outside. Deep convex and concave die 27, above the lower mold base, are sequentially provided with a blanking punching punch and concave die 38, a deep drawing punching punch and concave die 34, and a blanking die 6. In the mold closing state, the punching The hole drawing convex and concave mold 27 is located between the blanking concave mold 6 and the drawing and punching concave and concave mold 34, and the punching and blanking convex and concave mold 25 is located between the blanking and punching convex and concave mold 38 and the drawing Between the deep punching punch and die 34 , the punching punch 23 is arranged at the through hole in the middle of the blanking punch punch and die 38 .

Further, a push-out mechanism is provided below the upper mold base 17, and the push-out mechanism includes a punching rod 20 connected to an external pressure device, a push plate 19 arranged below the punch rod 20, and one end below the push plate 19 is connected to The push plate 19 is connected, and the other end is connected with the push rod 18 of the push plate 16, and the push plate 16 is arranged opposite to the blanking and punching punch and die 38.

Further, under the upper mold base 1, a discharge mechanism is also provided, and the discharge mechanism includes a discharge screw, a discharge spring is sleeved on the discharge screw, and a discharge spring is set at the lower end of the discharge screw. A stripping plate is provided, and the lower surface of the stripping plate is set correspondingly to the upper surface of the blanking die 6 and the drawing punching die 34 .

Further, above the lower mold base 1, an ejection mechanism is also provided, and the ejection mechanism includes an ejector rod 36 connected with external pressure equipment, and a first ejector block 32 is arranged at the upper end of the ejector rod, and the first ejector block 32 is arranged on the upper end of the ejector rod. A jacking block 32 is arranged between the blanking die 6 and the drawing and punching punch and die 34, and is opposite to the punching and drawing punch and die 27, and also includes a second jacking block 35, the The second jacking block 35 is arranged between the drawing punching punch 34 and the blanking punching punching die 38, and the first jacking block 32 and the second jacking block 35 are fixedly connected by a horizontal pin 33 .

Further, a lower mold guide column 30 is vertically arranged on the lower mold base 1, and an upper mold guide sleeve 29 is vertically arranged on the upper mold base 17, and the upper mold guide sleeve 29 is sleeved on the upper mold base 17. On the lower die guide post 30, and move up and down along the lower die guide post 30.

Further, a punching punch fixing plate 24 is arranged between the punching punch 23 and the punching blanking punch 25 , and the punching punch fixing plate 24 fixes the punching punch 23 .

Further, an upper bushing 14 is arranged between the punching and blanking punch 25 and the punching and drawing punch 27 .

Further, a lower bushing 37 is provided between the blanking and punching punch 38 and the drawing and punching punch 34 , and the lower bushing 37 is opposite to the punching and blanking punch 25 .

Further, it also includes an upper backing plate 11 and a lower backing plate 3 , the upper backing plate 11 is set on the lower surface of the upper mold base 17 , and the lower backing plate 3 is set on the upper surface of the lower mold base 1 .

Further, under the upper backing plate 11, an upper fixing plate 9 is arranged on the outer side of the punching and drawing punch and die 27, and above the lower backing plate 3, the drawing and punching punch and concave die 34 The outer side is provided with lower fixing plate 4.

The beneficial effects of the utility model are:

The utility model discloses a stamping conforming die, which can combine the processes of punching, blanking and deep drawing at one time, and punch out three different workpieces with one die, thus realizing the mixed stamping of the workpieces. In this way, only one pair of dies is needed to punch out a cylindrical deep-drawing part with a round hole in the middle, and two washers of different sizes, which successfully realizes the compounding of multiple processes, and also realizes the mixed stamping of three different types of workpieces. , which meets the requirements of modern production with high precision, low cost and high efficiency.

Description of drawings

Fig. 1 is a schematic cross-sectional structure diagram of a stamping composite die in a clamped state disclosed by the utility model.

detailed description

The specific implementation of the present utility model will be described in detail below in conjunction with specific examples.

As shown in Fig. 1, the utility model discloses a kind of stamping composite mold, and this composite mold comprises upper mold and lower mold, and the guide sleeve 29 of upper mold is set on the guide post 30 of described lower mold; There is a punching and drawing punch and die 27, a punching and blanking punch and die 25 for processing large gaskets, and a punching punch 23 for processing small washers. The lower die is provided with a blanking die 6, a punching die 34 for deep drawing and punching, and a punching die 38 for blanking and punching for processing small washers.

The upper mold also includes an upper mold base 17, a mold handle 21, a stop screw 22, an upper fixing pin 26, an upper fastening screw 28, an upper backing plate 11, an upper fixing plate 9, an upper bushing 14, and a punching punch fixing plate 24. Large discharge screw 10, large discharge spring 8, large discharge plate 7, small discharge screw 15, small discharge spring 13, small discharge plate 12, push plate 16, push plate 19, driving rod 20 . The upper backing plate 11, the upper fixing plate 9, the large discharge spring 8 and the large discharge plate 7 are sequentially stacked and fixed on the lower plane of the upper mold base 17; the upper fixing pin 26 is used to ensure the accuracy of the upper mold parts in the horizontal direction , The upper fastening screw 28 is used for the vertical connection of the upper mold parts. The upper backing plate 11, upper bushing 14, small unloading spring 13 and small unloading plate 12 are also sequentially superimposed and fixed on the lower plane of the upper mold base; the upper fixing plate 9 is fixed by a shoulder pressing method There is a punching and drawing convex and concave die 27. Similarly, the upper bushing 14 is pressed and fixed in the punching and deep drawing convex and concave die 27, and the punching and blanking convex and concave die 25 for processing large washers is pressed and fixed in the upper bushing 14. The punching punch fixing plate 24 is pressed into and fixed in the punching and blanking punch and concave die 25 for processing large washers, and the upper plane of the upper fixing plate 9, the upper bushing 14 and the punching punch fixing plate 24 is against the lower plane of the upper backing plate 11 .

The lower die also includes a lower mold base 1, a lower fixing pin 2, a lower fastening screw 31, a lower backing plate 3, a lower fixing plate 4, an intermediate backing plate 5, a first top block 32, a second top block 35, a top block Rod 36, lower bushing 37. The lower backing plate 3, the lower fixing plate 4, the middle backing plate 5, and the blanking die 6 are sequentially stacked and fixed on the upper plane of the lower mold base 1; the lower fixing pin 2 is used to ensure the accuracy of the horizontal direction of the lower mold parts , The lower fastening screw 28 is used for the vertical connection of the lower mold parts. The lower fixing plate 4 is fixed with a drawing and punching convex and concave die 34 by adopting a shoulder press-in method. Similarly, the lower bushing 37 is pressed and fixed in the drawing and punching punch and concave die 34, and the blanking punch for processing the small gasket The hole convex and concave dies 38 are pressed into and fixed in the lower bushing 37 . The second jacking block 35 and the first jacking block 32 are connected by the pin 33, and they act synchronously under the promotion of the push rod 36.

The working method of the stamping composite mold described in the utility model is: according to the use conditions and technical requirements of the parts, the drawn parts can be formed by one-time drawing, and the fillet radius of the cylinder wall and the cylinder bottom is greater than the thickness of the material, so there is no need to Shaping; the ratio of the inner hole size of the deep-drawing part to the diameter of the drawn cylinder is much smaller than the ratio of the blanking blank diameter to the diameter of the drawn cylinder, indicating that the shape and size of the hole after drawing will not change, and punching and drawing can simultaneously.

When closing the mold, the slider (not shown in the figure) of the press drives the upper mold to move downward, and the large unloading plate 7, small unloading plate 12, and push piece plate 16 first touch and feed on the blanking die 6 The blank to be processed, the unloading springs 8, 13 are compressed, so that the unloading plates 7, 12 press the blank, start stamping, the blanking and drawing punch and die 27 enters the blanking die 6, and the drawing and punching punch and die 34 enters Blanking and drawing convex and concave die 27 realize blanking and deep drawing, and the stamping of the cylindrical drawn part is completed; at the same time, the punching and blanking convex and concave die 25 for processing large washers enter the drawing and punching punch and concave die 34, and the small washer is punched The blanking punch 38 enters the punching and blanking punch 25 for processing the large washer to realize punching and blanking, and the punching of the big washer is completed; meanwhile, the punching punch 23 for processing the small washer enters the punching and blanking punch 38 for the small washer, The waste material leaks out from the leakage hole of the punching and blanking convex and concave die 38 of the small gasket, realizes punching and blanking, and the small gasket stamping is completed.

During the return journey, the slider (not shown in the figure) of the press drives the upper die to move upward, the punching and drawing punch 27, the punching and blanking punch 25 for processing the large washer, and the punching punch 23 for processing the small washer up. The unloading spring 8 is reset, and the unloading plate 7 is driven to unload the waste from the punching and drawing convex and concave die 27; Down. The push-out mechanism (not shown in the figure) of the press pushes the rod 20, the rod 20 pushes the push plate 19, the push plate 19 pushes the rod 18, the push rod 18 pushes the pusher plate 16, and the pusher plate 16 pushes the small washer from the large The punching and blanking convex and concave dies 25 of the gasket are released, and the above-mentioned hitting rod 20, the push plate 19, the push rod 18, and the push piece plate 16 are collectively referred to as the ejection mechanism of the mould. At the same time, in the lower die part, the ejector rod 36 is moved upward by the ejector mechanism (not shown in the figure) of the press, and the ejector rod 36 pushes the first ejector block 32 to move upward, and the first ejector block 32 pushes the drawn part from the deep-drawn The punching punch 34 is removed; the second jacking block 35 is connected with the first jacking block 32 by the fixed pin 33 and moves upwards synchronously to eject the large gasket from the drawing punching punch 34 . The ejector rod 36, the first ejector block 32, and the second ejector block 35 are collectively referred to as the ejection mechanism of the mould. So far, all three workpieces and waste materials have been taken out from the mold, and the stamping process has been completed.

The invention is a stamping compound die, which can compound the three processes of punching, blanking and deep drawing at one time, and one die can produce three different types of workpieces. In this way, only one pair of molds is needed, and the compounding of multiple processes is successfully realized. In particular, the optimization of the mold structure realizes the mixed stamping of three different types of workpieces, which meets the requirements of modern production with high precision, low cost and high efficiency. .

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. a kind of punching-pressing composite mould, including the upper bolster being correspondingly arranged（17）And die shoe（1）, it is characterised in that：Described Upper bolster（17）Lower section is disposed with piercing punch from the inside to the outside（23）, punching and blanking punch-die（25）And punching drawing is convex Cavity plate（27）, by being disposed with blanking and punching punch-die outside interior above the die shoe（38）, drawing punching punch-die （34）And blanking die（6）, under matched moulds state, the punching drawing punch-die（27）Positioned at the blanking die（6）With The drawing punching punch-die（34）Between, the punching and blanking punch-die（25）Positioned at the blanking and punching punch-die（38）With The drawing punching punch-die（34）Between, the piercing punch（23）It is arranged on the blanking and punching punch-die（38）Middle Through hole.

2. a kind of punching-pressing composite mould according to claim 1, it is characterised in that：In the upper bolster（17）Lower section is set There is an ejecting mechanism, the ejecting mechanism includes and external pressure equipment is connected makes bar（20）, be arranged on beat bar（20）Lower section Push pedal（19）And it is arranged on push pedal（19）Lower section one end and push pedal（19）Connection, the other end and push piece plate（16）The push rod of connection （18）, the push piece plate（16）With blanking and punching punch-die（38）It is oppositely arranged.

3. a kind of punching-pressing composite mould according to claim 1, it is characterised in that：In the upper bolster（1）Lower section, also sets Shedding mechanism is equipped with, the shedding mechanism includes unloading bolt, discharging spring is arranged with the unloading bolt, is unloaded described Material screw lower end is provided with stripper, the stripper lower surface and the blanking die（6）With the drawing punching punch-die （34）Upper surface is correspondingly arranged.

4. a kind of punching-pressing composite mould according to claim 1, it is characterised in that：In the die shoe（1）Top, also sets Ejecting mechanism is equipped with, the ejecting mechanism includes the push rod being connected with external pressure equipment（36）, is provided with push rod upper end One jacking block（32）, first jacking block（32）It is arranged on the blanking die（6）With the drawing punching punch-die（34）Between, And with the punching drawing punch-die（27）Position is relative, also including the second jacking block（35）, second jacking block（35）It is arranged on The drawing punching punch-die（34）With the blanking and punching punch-die（38）Between, first jacking block（32）With described second Jacking block（35）Pass through horizontal pin（33）It is fixedly connected.

5. a kind of punching-pressing composite mould according to claim 1, it is characterised in that：In the die shoe（1）On set vertically It is equipped with lower die guiding post（30）, in the upper bolster（17）On be vertically arranged with upper die guide sleeve（29）, the upper die guide sleeve（29）Set It is located at the lower die guiding post（30）On, and along the lower die guiding post（30）Move up and down.

6. a kind of punching-pressing composite mould according to claim 1, it is characterised in that：In the piercing punch（23）With it is described Punching and blanking punch-die（25）Between be provided with piercing punch fixed plate（24）, the piercing punch fixed plate（24）To the punching Hole punch-pin（23）It is fixed.

7. a kind of punching-pressing composite mould according to claim 1, it is characterised in that：In the punching and blanking punch-die（25） And the punching drawing punch-die（27）Between be provided with upper bushing（14）.

8. a kind of punching-pressing composite mould according to claim 1, it is characterised in that：The blanking and punching punch-die（38）With The drawing punching punch-die（34）Between be provided with lower bushing（37）, the lower bushing（37）With the punching and blanking punch-die （25）Position is relative.

9. a kind of punching-pressing composite mould according to claim 1, it is characterised in that：Also include upper padding plate（11）With lower bolster （3）, the upper padding plate（11）It is arranged on the upper bolster（17）Lower surface, the lower bolster（3）It is arranged on the die shoe（1） Upper surface.

10. a kind of punching-pressing composite mould according to claim 9, it is characterised in that：In the upper padding plate（11）Lower section, The punching drawing punch-die（27）Outside be provided with upper mounted plate（9）, in the lower bolster（3）Top, the drawing Punching punch-die（34）Outside be provided with bottom plate（4）.