CN103736770A

CN103736770A - Multi-shape cold extrusion die device of inner holes

Info

Publication number: CN103736770A
Application number: CN201410036934.0A
Authority: CN
Inventors: 王维涛; 赵永敏
Original assignee: WUXI SUPERHUMAN GEAR COLD EXTRUSION CO Ltd
Current assignee: WUXI SUPERHUMAN GEAR COLD EXTRUSION CO Ltd
Priority date: 2014-01-26
Filing date: 2014-01-26
Publication date: 2014-04-23

Abstract

The invention relates to a multi-shape cold extrusion die device of inner holes, which comprises an upper formwork and a lower formwork. The device is characterized in that an upper male die base is fixed on the lower surface of the upper formwork; an upper pressing plate is fixed on the lower surface of the upper male die base; a male die fixing sleeve is arranged in the upper male die base; a male die sleeve is arranged in the male die fixing sleeve; an upper male die is arranged in the male die sleeve; a forming surface of the upper male die is matched with an upper inner hole of a workpiece; a lower die base is fixed on the upper surface of the lower formwork; a lower pressing plate is fixed on the upper surface of the lower die base; an outer ring is arranged in the lower die base; a middle ring and a stress ring are arranged in the outer ring; an inner ring is arranged in the middle ring; a middle female ring is arranged in the stress ring; a hollow ejector rod is arranged in the inner ring and the middle female ring; a lower male die is arranged in the hollow ejector rod; and a forming surface of the lower male die is matched with a lower inner hole of the workpiece. The device can achieve once forming of the upper hole and the lower hole of the workpiece, and has the advantages of saving a raw material, reducing a processing procedure, saving the time and improving the production efficiency.

Description

Endoporus Multiple Shape cold extrusion die device

Technical field

The present invention relates to a kind of double hit cover cold extrusion die, especially a kind of endoporus Multiple Shape (as: rhombus, polygonal, square, oval etc.) cold extrusion die.

Background technology

In prior art, the processing technology of endoporus Multiple Shape generally adopts milling machine processing or moulding by casting.Existing technique cannot meet modern demand, because he long in cycle, precision is low, energy consumption is high, pollute heavily etc.

Summary of the invention

The object of the invention is to overcome the deficiencies in the prior art, a kind of endoporus Multiple Shape cold extrusion die device is provided, can once cold extrusion moulding, efficient, energy-saving and environmental protection, precision are high, easily produce.

According to technical scheme provided by the invention, described endoporus Multiple Shape cold extrusion die device, comprise top mold frame and lower mold holder, it is characterized in that: at the fixing epirelief die holder of lower surface of described top mold frame, at the fixing top board of lower surface of epirelief die holder, punch fixed cover is set in epirelief die holder, in punch fixed cover, punch case is set, upper male mould is set in punch case, and the top endoporus of the forming surface of upper male mould and workpiece matches; At the fixing die shoe of upper surface of described lower mold holder, at the fixing lower platen of upper surface of die shoe, outer ring is set in die shoe, centre circle and circle stress are set in outer ring, inner ring is set in centre circle, middle cloudy circle is set in circle stress, in inner ring and middle cloudy circle, hollow push rod is set, in hollow push rod, lower punch is set, the bottom endoporus of the forming surface of lower punch and workpiece matches.

Between described punch fixed cover and top mold frame, punch cushion block is set.

Punch cushion block and punch fixed block are set in the bottom of described inner ring, the little push rod of three equal parts is set on lower mold holder, the upper end of the little push rod of three equal parts is stretched in punch cushion block and punch fixed block, the lower end of withstanding hollow push rod.

Endoporus Multiple Shape cold extrusion die device of the present invention can be realized the one-shot forming in the upper and lower hole of workpiece, has advantages of saving material, reduces manufacturing procedure, saves time, enhances productivity.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Fig. 2 is the structural representation of described workpiece.

Fig. 3 is the top view of Fig. 2.

Fig. 4 is the upward view of Fig. 2.

The specific embodiment

Below in conjunction with concrete accompanying drawing, the invention will be further described.

As shown in Figure 1: described endoporus Multiple Shape cold extrusion die device comprises top mold frame 1, punch cushion block 2, epirelief die holder 3, lower platen 4, circle stress 5, die shoe 6, lower mold holder 7, punch fixed cover 8, top board 9, punch case 10, upper male mould 11, bolt 12, outer ring 13, hollow push rod 14, centre circle 15, inner ring 16, lower punch 17, workpiece 18, middle cloudy circle 19, punch fixed block 20, the little push rod 21 of three equal parts, punch cushion block 22 etc.

As shown in Figure 1, the present invention includes top mold frame 1 and lower mold holder 7, at the fixing epirelief die holder 3 of lower surface of top mold frame 1, at the fixing top board 9 of lower surface of epirelief die holder 3, at the interior punch fixed cover 8 that arranges of epirelief die holder 3, at the interior punch case 10 that arranges of punch fixed cover 8, at the interior upper male mould 11 that arranges of punch case 10, the top endoporus of the forming surface of upper male mould 11 and workpiece 18 matches, and between punch fixed cover 8 and top mold frame 1, punch cushion block 2 is set; Upper surface at described lower mold holder 2 is fixed die shoe 6 by bolt 12, at the fixing lower platen 4 of upper surface of die shoe 6, in the interior outer ring 13 that arranges of die shoe 6, interior centre circle 15 and the circle stress 5 of arranging in outer ring 13, at the interior inner ring 16 that arranges of centre circle 15, middle cloudy circle 19 is set circle stress 5 is interior, punch cushion block 22 and punch fixed block 20 are set in the bottom of inner ring 16, at inner ring 16 with middle cloudy circle 19 is interior that hollow push rod 14 is set, the interior lower punch 17 that arranges of hollow push rod 14, the bottom endoporus of the forming surface of lower punch 17 and workpiece 18 matches;

The little push rod 21 of three equal parts is set on described lower mold holder 2, and the upper end of the little push rod 21 of three equal parts is stretched in punch cushion block 22 and punch fixed block 20, the lower end of withstanding hollow push rod 14.

The present invention, when work, is positioned over workpiece 18 on hollow push rod 14, and the one-shot forming of hole up and down of workpiece 18, has advantages of saving material, reduces manufacturing procedure, saves time, enhances productivity.

Claims

1. an endoporus Multiple Shape cold extrusion die device, comprise top mold frame (1) and lower mold holder (7), it is characterized in that: at the fixing epirelief die holder (3) of lower surface of described top mold frame (1), at the fixing top board (9) of lower surface of epirelief die holder (3), punch fixed cover (8) is set in epirelief die holder (3), punch case (10) is set in punch fixed cover (8), upper male mould (11) is set in punch case (10), and the top endoporus of the forming surface of upper male mould (11) and workpiece (18) matches; At the fixing die shoe (6) of upper surface of described lower mold holder (2), at the fixing lower platen (4) of upper surface of die shoe (6), outer ring (13) is set in die shoe (6), centre circle (15) and circle stress (5) are set in outer ring (13), inner ring (16) is set in centre circle (15), middle cloudy circle (19) is set in circle stress (5), in inner ring (16) and middle cloudy circle (19), hollow push rod (14) is set, lower punch (17) is set in hollow push rod (14), and the bottom endoporus of the forming surface of lower punch (17) and workpiece (18) matches.

2. endoporus Multiple Shape cold extrusion die device as claimed in claim 1, is characterized in that: between described punch fixed cover (8) and top mold frame (1), punch cushion block (2) is set.

3. endoporus Multiple Shape cold extrusion die device as claimed in claim 1, it is characterized in that: punch cushion block (22) and punch fixed block (20) are set in the bottom of described inner ring (16), the little push rod of three equal parts (21) is set on lower mold holder (2), the upper end of the little push rod of three equal parts (21) is stretched in punch cushion block (22) and punch fixed block (20), withstands the lower end of hollow push rod (14).