CN2573110Y

CN2573110Y - Simple extra short deep-hole punching die

Info

Publication number: CN2573110Y
Application number: CN 02260207
Authority: CN
Inventors: 杜继涛; 麦云飞
Original assignee: University of Shanghai for Science and Technology
Current assignee: University of Shanghai for Science and Technology
Priority date: 2002-09-24
Filing date: 2002-09-24
Publication date: 2003-09-17
Anticipated expiration: 2012-09-24

Abstract

The utility model relates to a simple extra short deep-hole punching die, which is characterized in that the length of a convex die is 1/3 of that of an ordinary punching convex die and is 12-15 mm. The convex die and the concave die are combined into a whole body with no upper die. Because the length of the convex die is shorter than that of the existing extra short convex die, the utility model has the advantages of guide stability enhancement and enhancement of convex die intensity and rigidity. Because the convex die and the concave die are combined into a whole body no upper die, pore punching can be completed by a pressing machine and can be realized by an air cylinder, a hydraulic cylinder, etc. Thus, deep hole punching is more convenient and flexible.

Description

Simple and easy ultrashort deep hole blanking die

Technical field

The utility model relates to a kind of simple and easy ultrashort deep hole blanking die, belongs to the sheet-metal press working technical field.

Background technology

The structure of four kinds of blanking dies is mainly adopted in deep hole punching out at present, the one, punch adopt total length mourn to structure, its subject matter is guide pad manufacturing assembling difficulty, adopt float die shank and ball guide pillar guide pin bushing mould bases, this height of die assembly; The 2nd, adopt ultrashort punch structure, punch is fixed on the stripper, finishes punching by impact block bump punch, and its subject matter is to adopt float die shank and ball guide pillar guide pin bushing mould bases, this height of die assembly; The 3rd, adopt stripper to give the structure of the local guiding of punch, to be punch strength and rigidity hour be difficult to guarantee its subject matter, the 4th, the ultrashort punch structure that adopts die shank to float, guide plate and patrix are fixed together, and its subject matter is to make assembling to bother.All there is following subject matter in the structure of above-mentioned four kinds of blanking dies: mould must be installed on the forcing press and work, and must throw off die shut height height, poor stability when upper and lower die worker does.

Summary of the invention

The purpose of this utility model is in order to overcome the shortcoming of prior art, a kind of no patrix to be provided, and die shut height is low, can be without forcing press, and any simple and easy ultrashort deep hole blanking die that can provide enough pressure just can finish the deep hole stamping-out.

The technical solution of the utility model is: punch length is 1/3rd of general piercing punch length, is 12～15mm; Punch and die are integral, no patrix.

Because the length of punch is shorter than existing ultrashort punch length, greatly improve guiding stability, improved the intensity and the rigidity of punch.Because punch and die are integral, no patrix both can be finished also and can be made the deep hole punching press convenient flexibly by realizations such as cylinder or hydraulic cylinders towards aperture by press.

Description of drawings

Fig. 1 is the utility model structural representation.

The specific embodiment

By shown in Figure 1, the characteristics of simple and easy ultrashort deep hole blanking die are that (1) punch partly comprises holder 6, contour cover 7, screw 8, float and hit plate 9, punch 10, spring 11, bullet nail device 12, punch fixedly inserts 13, rubber 14, punch 10 is placed on punch and fixedly inserts in 13 the hole, can in 13, move up and down and rely on these holes to give punch 10 guiding, punch is fixedly inserted and 13 is connected with holder 6, its both cooperations are H7/r6, holder 6 hits plate 9 and is connected by screw 8 with floating, hit the robust motion of plate 9 for keeping floating, adopt contour covers 7 to be connected at screw 8 with unsteady 9 of the plates that hit, the contour cover 7 and the cooperation of hitting 9 of plates of floating are H7/h6, the come-up of hitting plate 9 relies on the rubber 14 that is placed in the holder 6 to finish, contour cover 7 is to guarantee to hit after the assembling plate 9 vital part stably that moves, and also is the key of entire die success; Die partly comprises die holder 1, stop collar 2, locating piece 3, float plate 4, guide pin bushing 5, guide nail 15, die plate insert 16, concave template 17, guide pillar 18, spring 19, screw 20, straight pin 21, fixed head 22, float plate 4 partly is connected the dependence screw with punch and straight pin tightens together, float plate 4 is keys of upper and lower mould contact, and be one of key of entire die operate as normal, therefore, float plate 4 adopts three guiding mechanisms: outside guiding relies on the inner surface of stop collar 2 to finish, and by the position of the control come-up of the boss on the stop collar 2, inboard guiding relies on fixedly insert 13 outer surface of concave template 17 and punch to finish, the guiding dependence of interstitial hole be pressed in the float plate 4 guide pin bushing 5 be fixed on fixed head 22 on guide pillar 18 cooperate realization; The come-up of float plate 4 relies on spring 19 to realize, guide pillar 18 is pressed in the fixed head 22 by interference fit, fixed head 22 is positioned on the die holder 1 by straight pin, die plate insert 16 is pressed on the concave template 17 by interference fits, concave template 17 is located by connecting by means of the outstanding position on the locating piece 3, and locating piece 3 is pressed in the fixed head 22 by interference fits; By above-mentioned relation part of the upper die and part of the lower die are become one.(2) general piercing punch length is 12-15mm through the existing punch length of architecture advances between 35-50mm, is the 1/2-1/3 of general piercing punch length, has greatly improved the intensity and the rigidity of punch; (3) Yi Qian mould must be finished on press, because part of the upper die and part of the lower die become one, eliminated traditional part of the upper die, therefore now, both can finish also to float to harden and wait realization, and make the deep hole punching press convenient flexible by press by cylinder or hydraulic cylinder bump.

The utility model is placed on the blank that is dashed on the concave template 17 when work, relies on guide nail 15 location; External force acts on to float hits plate 9, and it is descending along guide pillar 18 that holder 6 drives float plate 4, and punch 10 is simultaneously descending, but rubber 14 do not compress, and touches blank and draws back up to punch 10, fixedly inserts 13 to contact with blank, and rubber 14 begins to compress the generation pressure-plate-force; External force continuation effect, the unsteady plate 9 that hits forces rubber 14 compressions, and its bottom acts on the large end face of punch 10, and punch is pressed into die, finishes the deep hole punching press; After external force was removed, because the effect of spring 19, it is up that float plate 4 drives holders 6, and spring 11 acts on and plays apical organ 12, makes towards part from punch 10 to back off.

Claims

1, a kind of simple and easy ultrashort deep hole blanking die of being made up of punch and die is characterized in that,

(1) punch and die are integral;

(2) punch length is 12～15mm.

2, simple and easy ultrashort deep hole blanking die according to claim 1, it is characterized in that, described punch partly comprises holder (6), contour cover (7), screw (8), float and hit plate (9), punch (10), spring (11), bullet nail device (12), punch fixedly insert (13), rubber (14), punch (10) is placed on punch and fixedly inserts (13) as in the hole of leading, punch fixedly insert (13) be connected for interference fit with holder (6), holder (6) hits plate (9) and is connected by screw (8) with floating, be connected by interference fits with floating to hit between plate (9) and contour cover (7) at screw (8), in the holder (6) of the bottom of hitting plate (9), be equipped with rubber (14); Die partly comprises die holder (1), stop collar (2), locating piece (3), float plate (4), guide pin bushing (5), guide nail (15), die plate insert (16), concave template (17), guide pillar (18), spring (19), screw (20), straight pin (21), fixed head (22), float plate (4) partly is connected the dependence screw with punch and straight pin tightens together, float plate (4) adopts three guiding mechanisms: outside guiding is by the inner surface of stop collar (2), inboard guiding is by concave template (17) and the punch outer surface of (13) of fixedly inserting, the guiding of interstitial hole by be pressed in the float plate (4) guide pin bushing (5) be fixed on fixed head (22) on the cooperating of guide pillar (18); Guide pillar (18) is pressed in the fixed head (22) by interference fit, fixed head (22) is positioned on the die holder (1) by straight pin (21), die plate insert (16) is pressed on the concave template (17) by interference fits, concave template (17) is located by connecting by means of the outstanding position on the locating piece (3), and locating piece (3) is pressed in the fixed head (22) by interference fits.