CN202539341U

CN202539341U - Die for punching concave board sieve

Info

Publication number: CN202539341U
Application number: CN2012201218594U
Authority: CN
Inventors: 吴玲君; 潘尔奇; 潘尔特; 李哲; 刘杨松
Original assignee: HONGHU LIANXIN MACHINERY MANUFACTURING Co Ltd
Current assignee: HONGHU LIANXIN MACHINERY MANUFACTURING Co Ltd
Priority date: 2012-03-28
Filing date: 2012-03-28
Publication date: 2012-11-21
Anticipated expiration: 2022-03-28

Abstract

The utility model provides a die for punching a concave board sieve. The die is characterized in that a fixing block is connected with a convex connection block by using internal-hexagonal bolts, two male dies are sequentially mounted in the middle of the fixing block, two guide posts are respectively mounted at the two sides of the convex connection block, a female die fixing plate is connected onto a die seat, a female die is mounted in the middle of the female die fixing plate, two guide sleeves are respectively mounted at the two sides of the die seat, one end of the die seat is connected with a material limiting plate, a locating post is mounted in the material limiting plate, a spring is sleeved on the locating post, a limiting block is mounted at the top of the spring, and the locating post is connected with the material limiting plate through a locating post pressing plate. The die has the advantages of high punching efficiency and accuracy in hole distance size control.

Description

The concave grate punching die

Technical field

The utility model relates to field of machining, specially refers to a kind of concave grate punching die.

Background technology

Concave grate is the indispensable a kind of main parts size of thresher machine; And concave grate is to be pierced through bearing pin by the dozens of tooth plate to form, because concave grate tooth plate thickness is identical with the tooth plate aperture, generally is not easy to the processing of punching die; Traditional processing method is to go boring with little drilling machine; Therefore exist working (machining) efficiency low, iron filings are difficult for from aperture, discharging, and defective such as drill bit frangible.

Summary of the invention

The purpose of the utility model is to provide a kind of concave grate punching die that utilizes punch, die and material limiting device.

For realizing above-mentioned purpose, the technical scheme of the utility model is:

A kind of concave grate punching die comprises fixed block, convex contiguous block, punch, stripper, limit flitch, die, die block, die holder, guide pin bushing, reference column, limited block, spring and guide pillar, and the fixed block of this mould is connected with the convex contiguous block with hexagon socket head cap screw; In the middle of the fixed block along the limit flitch two punch vertically are housed successively, the both sides of convex contiguous block respectively are equipped with a guide pillar respectively, are connected with die block with the die block fastening bolt on the die holder; Die is equipped with in the centre of die block; The center of circle of die is corresponding with die, and a center and the corresponding guide pin bushing of guide pillar respectively are equipped with in the both sides of die holder, and an end of die holder connects limited flitch with limit flitch fastening bolt; The limit flitch has horizontal hole; Laterally in the hole reference column is housed, is with spring on the reference column in the hole, limited block is equipped with at the top of spring; Limited post is connected with the limit flitch with the limited post pressing plate, and limited post can move around in the hole of limit flitch.

The beneficial effect of the utility model is:

1, this die punching efficient is high, and the pitch-row size Control is accurate;

2, mould can quick dispatch, and material limiting device is spacing accurately;

3, this mould manufacturing is simple, easy to operate, can improve the working (machining) efficiency of tooth plate punching greatly.

Description of drawings

Fig. 1, concave grate punching die structural representation;

Fig. 2, concave grate punching die side view;

Fig. 3, concave grate punching die vertical view and limit flitch partial sectional view.

The specific embodiment

Further specify the specific embodiment of the utility model below in conjunction with accompanying drawing 1-3.

Referring to Fig. 1, Fig. 2 and Fig. 3; With hexagon socket head cap screw 3 fixed block 1 is connected with convex contiguous block 2; Protruding handle on the convex contiguous block 2 is loaded onto punch press, be placed on workpiece on the die holder 12, operating personnel live the limited post 15 that limited post pressing plate 14 is connected with limit flitch 6 with hand; Limited post 15 compresses springs 17 and stretches out the hole on the limit flitch 6, carries out spacing to workpiece.Start punch press; Two punch 4 at fixed block 1 center; Be connected die block 11 centers on the die holder 12 and the workpiece that covers on die 9 carries out punching press to being placed on, and guide pillar 18 enters into guide pin bushing 13, carries out spacing to convex contiguous block 2 with die block fastening bolt 10; With stripper fastening bolt 8 locking strippers 5, play material returned effect.After a punching press was accomplished, operating personnel unclamped limited post 15, and limited post 15 resets under the effect of spring 17, when limited block 16 touches the hole top, and the completion that resets, the distance of two limited posts promptly is the pitch-row of workpiece.Operating personnel move forward work, can carry out next step punching operation.

Claims

1. concave grate punching die; Comprise fixed block (1), convex contiguous block (2), punch (4), stripper (5), limit flitch (6), die (9), die block (11), die holder (12), guide pin bushing (13), reference column (15), limited block (16), spring (17) and guide pillar (18); It is characterized in that: fixed block (1) is connected with convex contiguous block (2) with hexagon socket head cap screw (3); Along limit flitch (6) in the middle of the fixed block (1) two punch (4) are housed successively vertically; The both sides of convex contiguous block (2) respectively are equipped with a guide pillar (18) respectively, and die holder (12) is gone up and is connected with die block (11) with die block fastening bolt (10), and die (9) is equipped with in the centre of die block (11); The center of circle of die (9) is corresponding with die (4); A center and the corresponding guide pin bushing of guide pillar (18) (13) respectively are equipped with in the both sides of die holder (12), and an end of die holder (12) connects limited flitch (6) with limit flitch fastening bolt (7), and limit flitch (6) has horizontal hole; Laterally in the hole reference column (15) is housed; Be with spring (17) on the reference column (15) in the hole, limited block (16) is equipped with at the top of spring (17), and limited post (15) is connected with limit flitch (6) with limited post pressing plate (14).