CN209969352U

CN209969352U - Deep-drawing and edge-extruding composite die

Info

Publication number: CN209969352U
Application number: CN201920141123.5U
Authority: CN
Inventors: 孙淑莲
Original assignee: Dalian Economic And Technological Development Zone Jingshang Mould Co Ltd
Current assignee: Dalian Economic And Technological Development Zone Jingshang Mould Co Ltd
Priority date: 2019-01-28
Filing date: 2019-01-28
Publication date: 2020-01-21
Anticipated expiration: 2029-01-28

Abstract

The utility model relates to a deep-drawing and edge-extruding composite die belongs to punching press composite die technical field. The drawing and edge-extruding composite die comprises a movable die, a static die, a push rod, an ejector plate and a blank holder, wherein the static die and the movable die are respectively arranged on an upper die frame and a lower die frame, the upper die plate and the lower die plate are in sliding connection through a guide sleeve and a guide pillar which are opposite in angle and have primary precision, so that the guiding precision of the die is higher than that of a slide block of a press machine, the upper die and the lower die move stably, and the size precision of a workpiece is ensured. The adoption of the one-level precision sliding guide can not only ensure the guide precision of the upper die and the lower die, but also improve the rigidity of the die, prolong the service life of the die, stabilize the quality of deep drawing and edge extrusion and facilitate the installation and debugging of the die. The trimming convex die and the drawing convex die are connected by adopting an embedded structure so as to meet the requirement of the installation accuracy of the convex die and the concave die. The die also has the advantages of compact structure, easy replacement of working parts, convenience in maintenance, high production efficiency and the like.

Description

Deep-drawing and edge-extruding composite die

Technical Field

The utility model relates to a deep-drawing and edge-extruding composite die belongs to punching press composite die technical field.

Background

In the existing deep drawing and edge extruding composite die, a press slide block is generally adopted for sliding guide of the die, the precision of the guide of the press slide block is not high, the deep drawing and edge extruding forming of a workpiece is not facilitated, the quality of deep drawing and edge extruding shaping is unstable, in addition, the rigidity of the die guided by the press slide block is not strong, the service life of the die is generally short, and the installation and debugging of the die are also complex.

Disclosure of Invention

The utility model provides a compound mould in crowded limit of deep-drawing, this mould merge an preface to accomplish blanking, two processes of deep-drawing, and the punching press technology on crowded limit after the mould adopts earlier deep-drawing is suitable for sheet material thickness thin (0.3 mm), and the work piece of small (6.4 +/-0.08 mm) of height dimension.

The utility model adopts the technical proposal that: a drawing and edge-extruding composite die comprises a movable die, a static die, a push rod, an ejector plate and a blank holder, wherein the static die is a punch-die, the punch-die is sequentially connected with a punch-die base plate and a lower die plate from top to bottom through a static die pin and a static die screw, and a plurality of positioning pins are arranged on the upper surface of the punch-die; the movable die comprises a trimming male die and a drawing male die, the drawing male die and the trimming male die are in an embedded structure and are fixedly connected through movable die screws, a 15-degree rake angle is arranged at the periphery of the bottom of the drawing male die, and the trimming male die is sequentially connected with a male die fixing plate and an upper die plate from bottom to top through movable die pins and trimming male die screws; the pushing rod is arranged at the central positions of the trimming male die and the drawing male die, and the upper part of the pushing rod is connected with the push rod through a boss; the blank holder is arranged on the outer side of the trimming male die, a plurality of pressing part springs are arranged between the blank holder and the upper die plate, and the top part plate is a circular plate which is arranged in the convex-concave die and is reset by the plurality of top part springs; the upper template is connected with the upper die shank through a die shank screw.

The outer diameter of the ejecting plate is the same as that of the drawing male die, the position of the ejecting plate corresponds to that of the drawing male die, and the ejecting plate is sequentially connected with the male-female die base plate and the lower die plate from top to bottom through ejecting screws.

The distance b between the lower edge of the upper template and the nut of the pressing piece screw is not more than the flange thickness of the drawing male die, the distance a between the nut of the top piece screw and the upper edge of the lower template is not less than the flange thickness of the drawing male die, and the stroke of the movable die for completing one-time drawing trimming molding is not less than two times of the flange thickness of the drawing male die.

The upper template and the lower template are connected in a sliding mode through a guide sleeve and a guide pillar which are opposite in angle and have primary precision.

The utility model has the advantages that: the drawing and edge-extruding composite die comprises a movable die, a static die, a push rod, an ejector plate and a blank holder, wherein the static die and the movable die are respectively arranged on an upper die frame and a lower die frame, the upper die plate and the lower die plate are in sliding connection through a guide sleeve and a guide pillar which are opposite in angle and have primary precision, so that the guiding precision of the die is higher than that of a slide block of a press machine, the upper die and the lower die move stably, and the size precision of a workpiece is ensured. The adoption of the one-level precision sliding guide can not only ensure the guide precision of the upper die and the lower die, but also improve the rigidity of the die, prolong the service life of the die, stabilize the quality of deep drawing and edge extrusion and facilitate the installation and debugging of the die. The trimming convex die and the drawing convex die are connected by adopting an embedded structure so as to meet the requirement of the installation accuracy of the convex die and the concave die. The die also has the advantages of compact structure, easy replacement of working parts, convenience in maintenance, high production efficiency and the like.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a structural view of a drawing and extruding composite die.

Fig. 2 is a cross-sectional view taken along line C-C of fig. 1.

Fig. 3 is a cross-sectional view taken along line D-D in fig. 1.

Fig. 4 is a workpiece diagram.

In the figure: 1. the device comprises an upper template, 2, a lower template, 3, a guide sleeve, 4, a guide pillar, 5, a punch fixing plate, 6, an edge cutting punch, 7, a drawing punch, 8, a push rod, 9, a pushing part rod, 10, a die shank, 11, a blank holder, 12, a movable die pin, 13, an edge cutting punch screw, 14, a pressing part screw plug, 15, a pressing part spring, 16, a movable die screw, 17, a pressing part screw, 18, a flattening ring screw, 19, a die shank screw, 20, a blank holder pin, 21, a punch-die backing plate, 22, a punch-die, 23, an ejection plate, 24, a static die pin, 25, a static die screw, 26, a positioning pin, 27, an ejection spring, 28, an ejection screw, 29, an ejection plug screw, 30 and a workpiece.

Detailed Description

The embodiments are further described below with reference to the accompanying drawings.

Fig. 1, 2 and 3 show a structure diagram of a drawing and extruding compound die. In the figure, the drawing and edge-extruding composite die comprises a movable die, a static die, a push rod 9, an ejector plate 23 and an edge pressing ring 11. The static die is a punch-die 22, which is sequentially connected with a punch-die backing plate 21 and a lower template 2 from top to bottom through a static die pin 24 and a static die screw 25, and the punch-die 22 is provided with a plurality of positioning pins 26. The movable die comprises a trimming convex die 6 and a drawing convex die 7, the drawing convex die 7 and the trimming convex die 6 are in an embedded structure and are fastened and connected through movable die screws 16, through holes for allowing the trimming convex die to freely pass through are formed in the positions, corresponding to the movable die screws 16, of the convex die fixing plate 5 and the upper die plate 1, 15-degree tilt angles are arranged on two sides of the bottom edge of the trimming convex die 6, the trimming convex die fixing plate 5 and the upper die plate 1 are sequentially connected from bottom to top through movable die pins 12, the trimming convex die 6 is connected with the convex die fixing plate 5 through trimming convex die screws 13, and through holes for allowing the trimming convex die screws 13 to freely pass through are formed in. The upper die plate 1 is connected to the die shank 10 above it by shank screws 19.

The pushing rod 9 is arranged at the center of the trimming convex die and the drawing convex die, the upper part of the pushing rod is connected with the push rod 8, and the push rod 8 sequentially penetrates through the convex die fixing plate 5, the upper die plate 1 and the die shank 10 from bottom to top; the blank holder 11 is arranged around the trimming male die 6, the position of the blank holder corresponds to that of the male and female dies 22, the blank holder 11 is sequentially connected with the male die fixing plate 5 and the upper die plate 1 from bottom to top through blank holder screws 18, and the upper surface of the blank holder is sequentially connected with the male die fixing plate 5 and the upper die plate 1 from bottom to top through a pressing piece spring 15 with a pressing piece screw plug 14 arranged at the top; the top piece plate 23 is a circular plate arranged in the cavity of the punch-die 22, the diameter of the top piece plate is the same as the outer diameter of the drawing punch 7, the position of the top piece plate corresponds to the drawing punch 7, the top piece plate 23 is sequentially connected with the punch-die backing plate 21 and the lower template 2 from top to bottom through a top piece screw 28, and the lower surface of the top piece plate is sequentially connected with the punch-die backing plate 21 and the lower template 2 from top to bottom through a top piece spring 27 with a top piece screw plug 29 at the bottom end.

The distance b between the lower edge of the upper template 1 and the nut of the pressing piece screw 17 is not more than the flange thickness of the drawing convex die 7, the distance a between the nut of the top piece screw 28 and the upper edge of the lower template 2 is not less than the flange thickness of the drawing convex die 7, and the stroke of the movable die for completing one-time drawing and trimming molding is not less than twice the flange thickness of the drawing convex die 7.

The upper template 1 and the lower template 2 are connected in a sliding way through a guide sleeve 3 and a guide post 4 which are arranged at the opposite angles with primary precision.

Fig. 4 shows a block diagram of the finished workpiece 30. The height of the workpiece 30 is h, which is equal to the thickness of the projecting edge thickness workpiece 30 of the drawing punch 7.

The working process of the deep drawing and edge extruding composite die is as follows: firstly, a blank strip material is placed on the working surface of the punch and die 22, and the positioning pins 26 are used for guiding and spacing. The moving die moves downwards along with the sliding block, when the blank holder 11 is in contact with a workpiece blank, drawing begins to work, the blank holder 11 and the punch-die 22 tightly press the blank, blank holding force is provided by the pressing piece spring 15, the drawing punch 7 and the jacking piece plate 23 clamp the blank to move downwards together with the sliding block, when the upper die moves downwards until the trimming punch 6 enters the die, the drawing process is completed, then downward edge extrusion begins to work, the sliding block reaches a lower stop point, and the edge extrusion process is completed. And (3) returning the slide block, wherein the ejector plate 23 ejects the workpiece 30 out of the cavity of the punch-die 22 under the action of the ejector spring 27, the workpiece 30 wrapped on the drawing punch 7 is pushed by the push rod 8 under the action of the punch striking rod, the push rod 9 is pushed by the push rod 8 to push the workpiece 30 out of the drawing punch, the waste material edge pressing ring 11 wrapped on the edge cutting punch 6 is unloaded under the action of the pressing piece spring 15, and the slide block reaches the upper dead point to finish drawing and edge extrusion, namely, a workpiece 30 is processed repeatedly.

Claims

1. The utility model provides a deep-drawing and edge-extruding composite die, includes movable mould, quiet mould, pushes away a pole (9), kicking plate (23) and blank holder (11), characterized by: the static die is a punch-die (22), the punch-die (22) is sequentially connected with a punch-die backing plate (21) and a lower template (2) from top to bottom through a static die pin (24) and a static die screw (25), and a plurality of positioning pins (26) are arranged on the upper surface of the punch-die (22); the movable die comprises a trimming convex die (6) and a deep drawing convex die (7), the deep drawing convex die (7) and the trimming convex die (6) are in an embedded structure and are fixedly connected through movable die screws (16), a 15-degree rake angle is arranged at the periphery of the bottom of the deep drawing convex die (7), and the trimming convex die (6) is sequentially connected with a convex die fixing plate (5) and an upper template (1) from bottom to top through a movable die pin (12) and a trimming convex die screw (13); the pushing rod (9) is arranged at the central positions of the trimming convex die (6) and the drawing convex die (7), and the upper part of the pushing rod (9) is connected with the push rod (8) through a boss; the blank holder (11) is arranged on the outer side of the trimming male die (6), a plurality of pressing piece springs (15) are arranged between the blank holder (11) and the upper die plate (1), and the top piece plate (23) is a circular plate which is arranged in the male and female die (22) and is reset by the plurality of top piece springs (27); the upper template (1) is connected with a die handle (10) above through a die handle screw (19).

2. A deep-drawing and edge-extruding composite die as claimed in claim 1, wherein: the outer diameter of the ejecting plate (23) is the same as that of the drawing male die (7), the position of the ejecting plate corresponds to that of the drawing male die (7), and the ejecting plate (23) is sequentially connected with the male-female die base plate (21) and the lower die plate (2) from top to bottom through an ejecting screw (28).

3. A deep-drawing and edge-extruding composite die as claimed in claim 1, wherein: the distance b between the lower edge of the upper template (1) and the nut of the pressing piece screw (17) is not more than the flange thickness of the deep drawing male die (7), the distance a between the nut of the top piece screw (28) and the upper edge of the lower template (2) is not less than the flange thickness of the deep drawing male die (7), and the stroke of the movable die for completing one-step deep drawing and trimming molding is not less than twice the flange thickness of the deep drawing male die (7).

4. A deep-drawing and edge-extruding composite die as claimed in claim 1, wherein: the upper template (1) and the lower template (2) are connected in a sliding mode through a guide sleeve (3) and a guide post (4) which are opposite in angle and have primary precision.