CN110193555B - Composite die - Google Patents

Abstract

The invention relates to a mold, in particular to a composite mold integrating blanking, deep drawing, trimming, flanging and unloading, and belongs to the field of mold design and manufacture. The actions between blanking, deep drawing, trimming, flanging and unloading are carried out in an orderly manner. First, the blanking process and the deep drawing process are carried out in sequence. After the deep drawing process, the edge trimming die moves to complete the edge trimming process, and then Complete the flanging of the workpiece, and finally, the ejector rod rises to eject the machined trolley body from the deep drawing punch to realize unloading; the pressure of the push rod acts on the upper wedge block, using the characteristics of the inclined wedge block to change the direction, So that the punching force from top to bottom drives the flanging die to move from bottom to top to complete the flanging process. Beneficial effects: the five processes of blanking, deep drawing, trimming, flanging and unloading are integrated, and it is not necessary to use multiple sets of molds to carry out sequentially, which improves production efficiency and reduces mold costs.

Description

a composite mold

technical field

The invention relates to a mold, in particular to a composite mold integrating blanking, deep drawing, trimming, flanging and unloading, and belongs to the field of mold design and manufacture.

Background technique

Wheelbarrows are widely used in production and life. They are low in cost, simple in maintenance, convenient in operation and light in weight. They can work in places where motor vehicles are inconvenient to use, and are very convenient when carrying lighter items over short distances. It is indispensable The wheelbarrow body is one of the main parts of the wheelbarrow. The schematic diagram of its structure is shown in Figure 1. According to the structural characteristics of the wheelbarrow body, the punching die can be used to realize the processing of the wheelbarrow body. Stamping die is a pressure processing method that uses a die installed on a press to apply pressure to the material in the cold stamping process to cause separation or plastic deformation to obtain the required parts. It has the advantages of short production cycle, good production quality, It has the advantages of high utilization rate of materials and good economic benefits. The processing of the wheelbarrow body requires five processes of blanking, deep drawing, trimming, flanging and unloading. The traditional production method requires multiple sets of molds to be carried out in sequence, resulting in low production efficiency and high mold costs. Therefore, a A composite mold integrating blanking, deep drawing, trimming, flanging and discharging is a technical problem to be solved urgently by those skilled in the art.

SUMMARY OF THE INVENTION

In view of this, the technical problem to be solved by the present invention is: how to provide a composite mold that integrates blanking, deep drawing, trimming, flanging and unloading, and the technical scheme adopted in the present invention is as follows:

A composite mold comprises a lower die base, an upper die base and a die handle, four sliding guide guide posts are fixedly installed on the upper end surface of the lower die base, and four sliding guide guide posts are fixedly installed on the lower end surface of the upper die base to cooperate with the sliding guide guide posts The sliding guide sleeve of the upper die holder is fixed in the central circular hole of the upper end face of the upper die seat by the first screw, and the lower end of the upper die seat is connected with the upper backing plate, the blanking punch, the blanking die by the third screw in sequence. The punch fixing plate is fixedly connected, the lower end of the upper die base is fixedly connected to the upper backing plate and the deep drawing die in sequence through a second screw, and the upper end of the lower die holder is connected to the lower base and the lower backing plate sequentially through a fourth screw. , The blanking die is fixedly connected, the middle position of the upper end of the lower die base is fixedly connected to the lower backing plate and the drawing punch in sequence through a fourth screw, the lower die base is provided with cylindrical pins, and the upper ends of the cylindrical pins are sequentially Insert into the bottom plate and the deep drawing punch, the first screw, the second screw, the third screw and the fourth screw are all hexagon socket head screws, and a flat washer is arranged between the fourth screw and the lower die seat , The upper die seat, the upper backing plate and the blanking punch are provided with circular through holes for accommodating push rods, and the push rods can be inserted into the circular through holes on the upper die seat, the upper backing plate and the blanking punch. The upper die seat and the upper backing plate are provided with rectangular through holes for accommodating the upper rectangular rod of the trimming die, the deep drawing die is arranged in the trimming die, and the blanking punch, push rod, The lower end of the deep drawing die is flush, the upper end of the blanking die is fixedly installed with a stripper plate, and a cylindrical head type fixed stopper pin is arranged between the blanking die and the stripper plate, and the cylinder head type is fixed The stopper pin is fixedly installed on the blanking die, the lower backing plate and the deep drawing punch are provided with through holes for accommodating the ejector pin, the upper end surface of the ejector pin is flush with the upper end surface of the deep drawing punch, and the lower Two short sliding wedges and two long sliding wedges are slidably installed on the backing plate, and the two short sliding wedges and the two long sliding wedges are symmetrically installed on the lower backing plate, and the adjacent short sliding wedges are The angle between it and the long sliding wedge is 90°, the height of the short sliding wedge and the long sliding wedge are equal, the flanging die is slidably installed on the outside of the deep drawing punch, and the lower end of the flanging die is connected to the short sliding wedge. The wedge block and the long sliding wedge block are in contact, the lower end of the inner side of the blanking die is fixedly installed with a flanging die stopper, the lower end of the flanging die stopper is attached to the upper end of the lower backing plate, and the inner side of the blanking die is movably installed An upper wedge, a cylindrical coil spring is installed between the lower end of the upper wedge and the upper end of the flanging die block.

The composite mold further includes a waste slot, which is located in the space enclosed by the flanging die and the upper wedge, and the lower end of the waste slot is fitted with the upper end surfaces of the short sliding wedge and the long sliding wedge.

The lower backing plate includes a main body of the lower backing plate, the bottom surface of the hole of the central hole of the main body of the lower backing plate is fixedly installed with a central plate, the upper end surface of the central plate is flush with the upper end surface of the main body of the lower backing plate, and the center plate is fixedly installed around it Four sector plates, two short slots for installing short sliding wedges and two long slots for installing long sliding wedges are formed between adjacent sector plates.

The cross section of the long sliding wedge is equal to the shape and size of the short sliding wedge, the upper plane of the short sliding wedge is in contact with the lower end surface of the waste chute, the inclined surface and the upper plane of the short sliding wedge are the same as the The lower end of the flanging die is in contact, the side plane of the short sliding wedge is fitted with the side plane of the sector plate, and the outer end face of the short sliding wedge is fitted with the inner side of the flanging die block.

The flanging module block includes a curved section of the flanging mold block, a long rectangular section of the flanging mold block that is fixedly connected to one end of the curved section of the flanging mold block, and a long rectangular section of the flanging mold block that is fixedly connected to the other end of the curved section of the flanging mold block. A short rectangular section of the flanging module stopper, the flanging module stopper is set in the middle position of the upper end face of the curved section of the flanging module stopper, the long rectangular section of the flanging module stopper, and the short rectangular section of the flanging module stopper. groove.

The upper wedge block includes an upper wedge block body, two symmetrically arranged small wedge blocks and two symmetrically arranged large wedge blocks are fixedly installed on the lower end of the upper wedge block body, and the upper end of the cylindrical coil spring is fixedly installed on the upper wedge block. The lower end of the block body, the lower end of the cylindrical coil spring is fixedly installed on the bottom of the circular groove groove of the flanging die block, the length of the small wedge is equal to the length of the short sliding wedge and is located above the short sliding wedge, so The length of the large wedge is equal to the length of the long sliding wedge and is located above the long sliding wedge, and the length of the small wedge is equal to the length of the short rectangular section of the flanging die block and is located in the short rectangle of the flanging die block. Above the inner side of the segment, the length of the large wedge is equal to the length of the long rectangular segment of the flanging die stopper and is located above the inner side of the long rectangular segment of the flanging die stopper.

The present invention has the following advantages:

(1) The five processes of blanking, deep drawing, trimming, flanging and unloading are integrated, and it is not necessary to use multiple sets of molds in sequence, which improves production efficiency and reduces mold costs;

(2) The pressure of the push rod acts on the upper wedge, and the upper wedge compresses the cylindrical coil spring to push down the short sliding wedge and the long sliding wedge to move towards the direction close to the drawing punch. The moving short sliding wedge and the long sliding wedge The wedge block pushes the flanging die upward to complete the flanging process, and the wedge block is used to change the direction, so that the punching force from top to bottom drives the flanging die to move from bottom to top to complete the flanging process;

(3) A cylindrical coil spring is installed between the lower end of the upper wedge block and the upper end of the flanging die block, and the upper wedge block can move upward and reset under the action of the rebound force of the cylindrical coil spring;

(4) The lower end of the flanging die is in contact with the short sliding wedge and the long sliding wedge. The two short sliding wedges and the two long sliding wedges are symmetrically installed on the bottom plate, and the adjacent short sliding wedges and long sliding wedges are adjacent. The angle between the blocks is 90°, and the shape and size of the cross section of the long sliding wedge and the short sliding wedge are equal, so that the lower end of the flanging die contacts the short sliding wedge and the long sliding wedge relatively smoothly.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Figure 1: Schematic diagram of the body structure of a wheelbarrow;

Fig. 2: the sectional structure schematic diagram of a kind of composite mold of the present invention;

Figure 3: A schematic view of the enlarged structure at A in Figure 2;

Figure 4: a schematic view of the trimming die structure of a composite die of the present invention;

Fig. 5: the structural representation of the bottom plate of a composite mold of the present invention;

Figure 6: a schematic diagram of the structure of the bottom plate of a composite mold of the present invention;

Figure 7: a schematic view of the structure of a short sliding wedge of a composite mold of the present invention;

Figure 8: a schematic diagram of the structure of a long sliding wedge of a composite mold of the present invention;

Figure 9: a schematic diagram of the structure of the waste chute of a composite mold of the present invention;

Figure 10: a schematic view of the cross-sectional structure of a flanging die of a composite die of the present invention;

Figure 11: a schematic structural diagram of a cylindrical coil spring of a composite mold of the present invention;

Figure 12: a schematic diagram of the structure of a flanging die block of a composite die of the present invention;

Figure 13 is a schematic diagram of the structure of the upper wedge block of a composite mold of the present invention.

Symbol Description:

1. Lower die base, 2. Lower base, 3. Lower backing plate, 4. Sliding guide guide post, 5. Blanking die, 6. Cylindrical fixed stopper pin, 7. Sliding guide bushing, 8. Stripper, 9, Upper die seat, 10, Blanking punch, 11, Upper pad, 12, Push rod, 13, Trimming die, 14, Die handle, 15, First screw, 16, Second screw , 17, third screw, 18, deep drawing die, 19, blanking punch fixing plate, 20, upper wedge, 21, cylindrical coil spring, 22, flanging die block, 23, short sliding wedge, 24, flanging die, 25, deep drawing punch, 26, ejector pin, 27, cylindrical pin, 28, waste groove, 29, fourth screw, 30, flat washer, 31, long sliding wedge, 301, bottom pad Plate body, 302, Center plate, 303, Sector plate, 304, Short gap, 305, Long gap, 2001, Upper wedge body, 2002, Small wedge, 2003, Large wedge, 2201, Flanging die stopper bent Section, 2202, Flanging Die Block Circular Groove, 2203, Flanging Die Block Long Rectangular Section, 2204, Flanging Die Block Short Rectangular Section, 2301, Upper Plane, 2302, Bevel, 2303, Side Plane, 2304, the outer end face.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The terms "first", "second", etc. in the description and claims of the present invention and the above drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can, for example, be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those expressly listed Rather, those steps or units may include other steps or units not expressly listed or inherent to these processes, methods, products or devices.

Below in conjunction with accompanying drawing and example, the present invention will be further described:

As shown in Figures 2 to 5, a composite mold includes a lower die base 1, an upper die base 9, and a die handle 14. The upper end surface of the lower die base 1 is fixedly installed with four sliding guide columns 4. For example, the sliding guide guide The lower end of the column 4 is in an interference fit with the die seat hole on the lower die seat 1, and the lower end surface of the upper die seat 9 is fixedly installed with four sliding guide guide sleeves 7 that cooperate with the sliding guide guide column 4. For example, the upper end of the sliding guide guide sleeve 7 It is an interference fit with the mold seat hole on the upper mold seat 9, and the mold handle 14 is fixed in the central circular hole on the upper end face of the upper mold seat 9 through the first screw 15. The lower end of the seat 9 is fixedly connected to the upper backing plate 11, the blanking punch 10, and the blanking punch fixing plate 19 in sequence through the third screw 17. For example, six third screws 17 are arranged around the circumference, and the lower end of the upper die seat 9 passes through the third screw 17. The two screws 16 are fixedly connected to the upper backing plate 11 and the deep drawing die 18 in turn. For example, two second screws 16 are symmetrically arranged, and the periphery of the upper end of the lower die base 1 is sequentially connected to the lower base 2 and the lower pad through the fourth screws 29. The plate 3 and the blanking die 5 are fixedly connected, and the middle position of the upper end of the lower die base 1 is fixedly connected to the lower backing plate 3 and the deep drawing punch 25 in turn through the fourth screw 29. For example, the lower die base 1 is arranged around six The fourth screw 29, two fourth screws 29 are symmetrically arranged in the middle, the lower die base 1 is provided with a cylindrical pin 27, and the upper end of the cylindrical pin 27 is inserted into the lower backing plate 3 and the deep drawing punch 25 in turn. For example, the cylindrical pin 27 is symmetrical Set two, the first screw 15, the second screw 16, the third screw 17, and the fourth screw 29 are all hexagon socket head screws, and a flat washer 30 is arranged between the fourth screw 29 and the lower die base 1, effectively preventing the The four screws 29 are loosened, and the upper die base 9, the upper backing plate 11, and the blanking punch 10 are provided with circular through holes for accommodating the push rod 12. The circular through hole on the die 10 slides up and down, the upper die base 9 and the upper backing plate 11 are provided with a rectangular through hole for accommodating the upper rectangular rod of the trimming die 13, and the deep drawing die 18 is arranged in the trimming die 13, and the cutting die 18 is set in the trimming die 13. The side die 13 can slide up and down, the lower ends of the blanking punch 10, the push rod 12 and the deep drawing die 18 are flush, and the upper end of the blanking die 5 is fixedly installed with a discharge plate 8, which is connected to the blanking die. The gap between 5 is fixed, a cylindrical head type fixed stopper pin 6 is set between the blanking die 5 and the discharge plate 8, and the cylinder head type fixed stopper pin 6 is fixedly installed on the blanking die 5, and the bottom plate 3 and the deep drawing punch 25 is provided with a through hole for accommodating the ejector pin 26, the upper end surface of the ejector pin 26 is flush with the upper end surface of the deep drawing punch 25, the ejector pin 26 can slide up and down, and the upwardly sliding ejector pin 26 can lift the sleeve For the workpiece on the drawing punch 25, two short sliding wedges 23 and two long sliding wedges 31 are slidably installed on the lower backing plate 3, and the two short sliding wedges 23 and the two long sliding wedges 31 are symmetrical Installed on the bottom plate 3, the angle between the adjacent short sliding wedges 23 and the long sliding wedges 31 is 90°, the heights of the short sliding wedges 23 and the long sliding wedges 31 are equal, and the outer side of the deep drawing punch 25 slides Install the flanging die 24, the inner wall of the flanging die 24 is fitted with the deep drawing punch 25, and the flanging die 24 can be drawn along the drawing The deep punch 25 slides up and down, the lower end of the flanging die 24 is in contact with the short sliding wedge 23 and the long sliding wedge 31, the inner and lower end of the blanking die 5 is fixedly installed with the flanging die stopper 22, for example, the flanging die stopper The outer wall of 22 is in interference fit with the inner wall of the blanking die 5, the lower end of the flanging die block 22 is fitted with the upper end of the lower backing plate 3, the upper wedge 20 is movably installed on the inner side of the blanking die 5, and the lower end of the upper wedge 20 A cylindrical coil spring 21 is installed between the upper ends of the side mold blocks 22 , and the upper wedge block 20 can slide up and down along the inner wall of the blanking die 5 .

As shown in FIGS. 2 to 3 , the composite mold according to the embodiment of the present invention further includes a waste groove 28 . The waste groove 28 is located in the space enclosed by the flanging mold 24 and the upper wedge 20 . The lower end of the waste groove 28 is connected to the short sliding wedge. 23 and the upper end surface of the long sliding wedge 31 are attached, the waste cut by the trimming die 13 falls into the waste slot 28, the outer wall surface of one side of the waste slot 28 is attached to the outer wall surface of the flanging die 24, and the waste slot 28 is on the other side. The outer wall surface of one side is in contact with the upper wedge block 20, and the upper wedge block 20 is always in contact with the outer wall surface of the waste groove 28 in the process of sliding up and down. , The short sliding wedge 23, the long sliding wedge 31, and the flanging die 24 constitute the flanging mechanism.

As shown in FIGS. 5-6 , the lower backing plate 3 includes a lower backing plate main body 301 , the bottom surface of the center hole of the lower backing plate main body 301 is fixedly installed with the central plate 302 , and the upper end surface of the central plate 302 is flush with the upper end surface of the lower backing plate main body 301 , for example, the main body 301 of the lower backing plate and the center plate 302 can be fixed by welding or integrally processed, four fan-shaped plates 303 are fixedly installed around the center plate 302, and the adjacent fan-shaped plates 303 are formed for installation of short sliding The two short openings 304 of the wedge block 23 and the two long openings 305 for installing the long sliding wedge block 31, for example, the center plate 302 and the sector plate 303 can be fixed by welding or integrally processed.

As shown in FIGS. 7-10 , the cross-section of the long sliding wedge 31 and the cross-section of the short sliding wedge 23 are the same in shape and size, the length of the long sliding wedge 31 is greater than that of the short sliding wedge 23 , and the short sliding wedge 23 The upper plane 2301 of the short sliding wedge 23 is in contact with the lower end surface of the waste chute 28, the inclined plane 2302 and the upper plane 2301 of the short sliding wedge block 23 are in contact with the lower end of the flanging die 24, and the side plane 2303 of the short sliding wedge block 23 is in contact with the side plane of the sector plate 303. The outer end surface 2304 of the short sliding wedge 23 is in contact with the inner surface of the flanging die block 22, the short sliding wedge 23 is in contact with the middle of the short side of the waste groove 28, and the long sliding wedge 31 is in contact with the middle of the long side of the waste groove 28. .

As shown in FIGS. 11 to 12 , the flanging mold block 22 includes a flanging mold block curved section 2201 , a flanging mold block long rectangular section 2203 fixedly connected to one end of the flanging mold block curved section 2201 , and a flanging mold block curved section 2203 . A short rectangular section 2204 of the flanging mold block fixedly connected to the other end of the bending section of the mold block 2201, a four-stage flanging mold block bending section 2201, a long rectangular section 2203 of a two-stage flanging mold block, and a two-stage flanging mold block The short rectangular section 2204 of the block is surrounded by a ring structure. For example, the bending section 2201 of the flanging mold block, the long rectangular section 2203 of the flanging mold block, and the short rectangular section 2204 of the flanging mold block are integrally processed, and the flanging mold block is integrally processed. The block bending section 2201 , the flanging mold block long rectangular section 2203 , and the flanging mold block short rectangular section 2204 are all provided with a flanging mold block circular groove 2202 at the middle position of the upper end surface.

As shown in FIGS. 11-13 , the upper wedge 20 includes an upper wedge main body 2001 , and two symmetrically arranged small wedges 2002 and two symmetrically arranged large wedges 2003 are fixedly mounted on the lower end of the upper wedge main body 2001 . , the small wedge 2002 and the upper wedge body 2001 can be fixed by welding, the large wedge 2003 and the upper wedge body 2001 can be fixed by welding, and the upper end of the cylindrical coil spring 21 is fixedly installed on the lower end of the upper wedge body 2001. The lower end of the coil spring 21 is fixedly installed at the bottom of the circular groove 2202 of the flanging die block. The length of the small wedge 2002 is equal to the length of the short sliding wedge 23 and is located above the short sliding wedge 23. The length of the large wedge 2003 The length is equal to that of the long sliding wedge 31 and is located above the long sliding wedge 31. During the vertical downward movement of the upper wedge 20, the slope of the lower end of the vertically downward small wedge 2002 is the same as the slope of the outer side of the short sliding wedge 23. 2302 contacts and pushes the short sliding wedge 23 to move in the direction close to the drawing punch 25, and the slope of the lower end of the large wedge 2003 that moves vertically downward contacts the long sliding wedge 31 and pushes the long sliding wedge 31 to approach the deep drawing. The direction of the punch 25 moves, and the short sliding wedge 23 and the long sliding wedge 31 moving toward the drawing punch 25 push the flanging die 24 upward together, and the length of the small wedge 2002 is shorter than the flanging die stopper The length of the rectangular section 2204 is the same and is located above the inner side of the short rectangular section 2204 of the flanging mold block. The length of the large wedge 2003 is equal to the length of the long rectangular section 2203 of the flanging mold block and is located in the long rectangular section 2203 of the flanging mold block. top inside.

The present invention is used in connection with the open double-column fixed table press JA21-200. When the present invention works:

(1) The cut steel strip is guided by the guide pin, and the cylindrical head type fixed stopper pin 6 is positioned. As the press drives the die handle 14 downward, the blanking punch 10 and the blanking die 5 act on the steel plate. The strip material starts the blanking process to punch out the blank of the trolley bucket. After the blanking is completed, it continues to push the blank downward. At the same time, the drawing punch 25 and the deep drawing die 18 start to work for the drawing process. When the fixing plate 19 is in contact with the upper surface of the stripper plate 8, the drawing process is completed;

(2) After the deep drawing process is completed, the trimming die 13 starts to move downward under the pressure of the power machine of the trimming die 13 and completes the trimming process, so that the material supplied by the trolley bucket for the flanging process is uniform, and the trimming die 13 cuts The lower waste material falls into the waste tank 28, and after the trimming is completed, the trimming die 13 is retracted, and the trimming process is completed;

(3) After the trimming process is completed, the push rod 12 slides down and passes through the circular through holes on the upper die base 9, the upper backing plate 11 and the blanking punch 10 under the pressure of the push rod 12 power machine. The stripper plate 8 acts on the upper wedge 20, the upper wedge 20 compresses the cylindrical coil spring 21 and pushes the short sliding wedge 23 and the long sliding wedge 31 to move toward the direction close to the drawing punch 25. The moving short sliding wedge 23. The long sliding wedge 31 pushes the flanging die 24 upward to complete the flanging process. After a certain period of time, the flanging process is completed, and the trolley body is stamped and formed;

(4) With the upward movement of the die handle 14, the deep drawing die 18 moves upward from the workpiece, and the ejector pin 26 moves upward along the through holes on the lower backing plate 3 and the deep drawing punch 25 under the pressure of the ejector pin 26 power machine to remove the workpiece. The workpiece is ejected, the push rod 12 is retracted, the upper wedge 20 moves upward under the elastic force of the cylindrical coil spring 21, and the flanging die 24, the short sliding wedge 23 and the long sliding wedge 31 are reset manually.

The operations of blanking, deep drawing, trimming, flanging and unloading of the present invention are performed in an orderly manner. First, the blanking process and the deep drawing process are performed in sequence. After the deep drawing process, the trimming die 13 moves to complete the cutting process. Then, the flanging of the workpiece is completed, and finally, the ejector rod 26 rises to eject the processed trolley body from the drawing punch 25 to realize unloading.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (6)

1. A composite mold comprising a lower die base, an upper die base and a die handle, characterized in that: the upper end face of the lower die base is fixedly installed with four sliding guide columns, and the lower end face of the upper die base is fixedly installed with four The sliding guide guide sleeve cooperates with the sliding guide guide post, the die handle is fixed in the central circular hole on the upper end face of the upper die seat by the first screw, and the lower end of the upper die seat is connected to the upper backing plate, the drop plate and the lower end of the upper die seat in turn through the third screw. The blanking punch and the blanking punch fixing plate are fixedly connected, the lower end of the upper die base is fixedly connected to the upper backing plate and the deep drawing die in turn through the second screw, and the upper end of the lower die base is connected to the upper end through the fourth screw. The lower base, the lower backing plate, and the blanking die are fixedly connected, and the middle position of the upper end of the lower die base is fixedly connected to the lower backing plate and the drawing punch in sequence through a fourth screw, and a cylindrical pin is arranged on the lower die holder. The upper end of the cylindrical pin is inserted into the bottom plate and the deep drawing punch in sequence, the first screw, the second screw, the third screw and the fourth screw are all hexagon socket head screws, and the fourth screw is connected to the lower mold. A flat washer is arranged between the seats, and a circular through hole for accommodating a push rod is set on the upper die seat, the upper backing plate and the blanking punch. The upper die seat and the upper backing plate are provided with a rectangular through hole for accommodating the upper rectangular rod of the trimming die, the deep drawing die is arranged in the trimming die, and the blanking die is The lower ends of the punch, the push rod and the deep drawing die are flush, the upper end of the blanking die is fixedly installed with a stripper plate, and a cylindrical fixed stopper pin is arranged between the blanking die and the stripper plate. The cylindrical head type fixed stopper pin is fixedly installed on the blanking die, the lower backing plate and the deep drawing punch are provided with through holes for accommodating the ejector pin, and the upper end face of the ejector pin is connected to the upper end face of the deep drawing punch. are flush, two short sliding wedges and two long sliding wedges are slidably installed on the bottom plate, and the two short sliding wedges and the two long sliding wedges are symmetrically installed on the bottom plate, The angle between the adjacent short sliding wedges and the long sliding wedges is 90°, the heights of the short sliding wedges and the long sliding wedges are equal, and the flanging die is slidably installed on the outside of the deep drawing punch. The lower end of the side die is in contact with the short sliding wedge block and the long sliding wedge block, and the lower end of the inner side of the blanking die is fixedly installed with a flanging die block, and the lower end of the flanging die block is fitted with the upper end of the lower backing plate. An upper wedge is movably installed on the inner side of the die, and a cylindrical coil spring is installed between the lower end of the upper wedge and the upper end of the flanging die stop. 2. A composite mold according to claim 1, characterized in that: the composite mold further comprises a waste slot, the waste slot is located in the space enclosed by the flanging mould and the upper wedge, and the waste slot is The lower end fits with the upper end faces of the short sliding wedge and the long sliding wedge. 3. A composite mold according to claim 1 or 2, wherein the lower backing plate comprises a lower backing plate main body, the bottom surface of the hole of the central hole of the lower backing plate main body is fixedly installed with a center plate, and the center The upper end surface of the upper plate is flush with the upper end surface of the main body of the lower backing plate, four fan-shaped plates are fixedly installed around the center plate, and two short openings for installing short sliding wedges and one for installing long Slide the two long notches of the wedge. 4 . The composite mold according to claim 1 , wherein the cross section of the long sliding wedge and the short sliding wedge are equal in shape and size, and the upper plane of the short sliding wedge is the same as the waste material. 5 . The lower end face of the groove is fitted, the inclined surface and the upper plane of the short sliding wedge are in contact with the lower end of the flanging die, the side plane of the short sliding wedge is fitted with the side plane of the sector plate, and the outer surface of the short sliding wedge is in contact with the lower end of the flanging die. The end face is fitted with the inner side of the flanging die block. 5 . The composite mold according to claim 4 , wherein the flanging die block comprises a curved segment of the flanging die block, and a flanging die block fixedly connected to one end of the curved segment of the flanging die block. 6 . A long rectangular section of the block, a short rectangular section of the flanging mold block fixedly connected to the other end of the curved section of the flanging mold block, the curved section of the flanging mold block, the long rectangular section of the flanging mold block, and the flanging mold block The middle position of the upper end face of the short rectangular segment of the block is provided with a circular groove for the flanging die block. 6. A composite mold according to claim 1 or 4, wherein the upper wedge block comprises an upper wedge block main body, and the lower end of the upper wedge block main body is fixedly installed with two symmetrically arranged small wedge blocks and Two symmetrically arranged large wedges, the upper end of the cylindrical coil spring is fixedly installed on the lower end face of the main body of the upper wedge block, the lower end of the cylindrical coil spring is fixedly installed at the bottom of the circular groove groove of the flanging die block, the small wedge The length of the block is equal to and above the short sliding wedge, the large wedge is the same length as and above the long sliding wedge, and the small wedge is the same length as the long sliding wedge. The length of the short rectangular section of the flanging die block is equal and is located above the inner side of the short rectangular section of the flanging die block, and the length of the large wedge is equal to the length of the long rectangular section of the flanging die block and is located at the flanging die block. Above the inside of the long rectangular segment.

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