CN202015806U

CN202015806U - Multi-way centripetal hot extrusion closed composite forging die

Info

Publication number: CN202015806U
Application number: CN2011200264980U
Authority: CN
Inventors: 李之海
Original assignee: JIANGSU HAIDA PIPE FITTINGS GROUP CO Ltd
Current assignee: JIANGSU HAIDA PIPE FITTINGS GROUP CO Ltd
Priority date: 2011-01-16
Filing date: 2011-01-16
Publication date: 2011-10-26
Anticipated expiration: 2021-01-16

Abstract

The utility model relates to a multi-way centripetal hot extrusion closed composite forging die, which is particularly applicable to the forming machining of a one-step hot (warm)-forging extrusion multi-way pipe and belongs to the technical field of hot (warm) extrusion forging. The multi-way centripetal hot extrusion closed composite forging die consists of a supporting base plate, a lower die holder, a lower female die, a transverse male die holder, a transverse male die, an upper female die, connecting rods, upper pins, lower pins and elastic rubber or spring, wherein a moving pair in a vertical direction is formed in a shaft and hole clearance fit mode between the die holder and the supporting base plate; fixed hinges of a rotary pair are formed between the supporting base plate and connecting rod through the lower pins; movable hinges of the rotary pair are formed between the connecting rods and the transverse male die holder through upper pins; a moving pair in a horizontal direction is formed in a key and key slot mode between the transverse male die holder and the lower die holder; and elastic rubber is arranged between the supporting base plate and the plane of the lower die. The multi-way centripetal hot extrusion closed composite forging die has obvious advantages of simple structure, reasonable power distribution, high working efficiency and energy conservation.

Description

The compound forging die of entad hot extrusion enclosed of multidigit

Technical field

The utility model relates to a kind of heat (temperature) and pushes compound forging die, relates in particular to a kind of multidirectional entad heat (temperature) and pushes compound forging die, is specially adapted to the shaping processing that disposable thermal (temperature) is forged extruding multi-way pipe fitting, belongs to heat (temperature) extruding forging technical field.

Background technology

Traditional heat (temperature) extruding forging die structure, the general open architecture that all adopts upper and lower mould cavity, it is according to metal fever (temperature) Principles of Plastic Molding, the metal blank of heat (temperature) attitude is put into the bed die die cavity that is fixed on the forcing press, under the powerful stamping press effect of mold die cavity, force metal from upper and lower die cavity, to do plasticity crimp, thus the hot warm-extrusion die forging that obtains required form, size and have certain mechanical performance.There is following shortcoming in upper and lower mould cavity structure like this: one, the following gesture point of mold die cavity has determined the extrusion molding degree of forging part, the stroke of therefore necessary strict control mold die cavity; Two, between the following gesture critical point of mold die cavity and bed die die cavity, must leave the slit, thereby unnecessary metal will form overlap at the place, slit, form the side cut operation in road, back therefrom; Three, can't push the forging part that requires to have multidirectional hole, blank is increased.At present also there is the vertical positive power of utilizing forcing press to make upper and lower mould cavity closure earlier, the forging die that adopts oil pump to provide the power of surging to make punch entad push multidirectional hole then occurs, but this forging die exists drawback equally: one, the complex structure of mould, and the components and parts of interlock are more; Two, the power of principal pressure machine is not fully used, and vertical positive power and multidirectional extruding force derive from two dynamical systems, thereby cause energy waste.

Summary of the invention

At shortcoming and drawback that existing hot extrusion forging die exists, the utility model provides entad hot extrusion enclosed of a kind of multidigit compound forging die, is intended to utilize a principal pressure machine to realize the shaping processing of disposable forging extruding multi-way pipe fitting.

To achieve these goals, the utility model takes following technical scheme to implement: it by bearing plate, die shoe, lower cavity die, laterally convex mould base, laterally punch, upper cavity die, connecting rod, go up pin, pin, elastomer constitute down, form the fixed hinge of rotary pair between bearing plate and the connecting rod by pin down; The hinges of forming rotary pair between connecting rod and the horizontal convex mould base by last pin; Laterally between convex mould base and the die shoe with the moving sets on the form composition horizontal direction of key and keyway; The form that cooperates with axle, interporal lacuna between die shoe and the bearing plate is formed the moving sets on the vertical direction; Be provided with elastomer between bearing plate and the die shoe plane.Pressure at right angle can be on same press, realized to the entad pressure conversion of extruding force of level by above scheme, thereby disposable shaping extruding can be realized the outer shape and the transverse holes of multi-way pipe fitting.

The utlity model has that mould structure is simple, power distribution rationally, the remarkable advantage of high efficiency, energy savings.

Description of drawings

Fig. 1 is the main sectional structure schematic diagram under the utility model off working state;

Fig. 2 is an A-A cross section sectional structure schematic diagram among Fig. 1;

Fig. 3 is the main sectional structure schematic diagram under the utility model duty;

Fig. 4 is a B-B cross section sectional structure schematic diagram among Fig. 3;

Fig. 5 is a C-C cross section sectional structure schematic diagram among Fig. 4;

Fig. 6 is a kinematic sketch of the present utility model.

In the accompanying drawing: pin on 1 bearing plate, 2 die shoes, 3 connecting rods, 4 lower cavity dies, 5 gathering sills, 6 upper cavity dies, 7 horizontal punch, the 8 horizontal convex mould bases, 9,10 times pins, 11 elastomers, 12 keys, 13 keyways, 14 blanks.

The specific embodiment

As Fig. 1, Fig. 2, Fig. 5, shown in Figure 6, the form that cooperates with axle, interporal lacuna between die shoe 2 and the bearing plate 1 is formed the moving sets on the vertical direction, wherein bearing plate 1 is for fixing, and both are provided with elastomer 11 (elastomer 11 can be elastic rubber or spring, also can be the sub-assembly of the two) between the plane; Pass through the rotary pair of pin 10 composition fixed hinges down between bearing plate 1 and the connecting rod 3, wherein bearing plate 1 is for fixing; The rotary pair of forming hinges between connecting rod 3 and the horizontal convex mould base 8 by last pin 9; With the moving sets on the form composition horizontal direction of key and keyway, wherein die shoe 2 is fixing on the horizontal direction between horizontal convex mould base 8 and the die shoe 2; Laterally punch 7 is contained in the horizontal convex mould base 8.As shown in Figure 3, Figure 4, heat (temperature) attitude metal blank is put into lower cavity die 4, simultaneously the starting pressure machine; When the pressure F on coming from upper cavity die 6 plane a acts on the lower cavity die 4 plane b, closed fully between upper cavity die 6 and the lower cavity die 4, and die shoe 2 is moved downward and elastomer 11 by compression, meanwhile this pressure is delivered to horizontal convex mould base 8, goes up on pin 9 and the connecting rod 3 by die shoe 2 again, forces connecting rod 3 to do relative motion around pin 10 rotations down, connecting rod 3 with horizontal convex mould base 8.Connecting rod 3 extruding bearing plates 1 in the said process, the horizontal component of bearing plate 1 reaction force promotes horizontal convex mould base 8 and moves to the mould heart along straight line along the gathering sill on the die shoe 25, keyway 13, realize 7 pairs of blank transverse holes of horizontal punch extruding (if workpiece needs multidirectional compact making hole, then need conplane a plurality of directions be provided with simultaneously connecting rod 3, laterally convex mould base 8, on pin 9 form the rotary pair of hinges).This moment, the metallic fiber of blank inside was done the mobile expansion of plastic deformation to the die cavity gap, directly only was full of institute in the die cavity and had living space and obtain required finished product blank 14.Because being plane a, the b by upper and

lower die

6,4, the utility model transmits horizontal extruding force, and when the above and below a of upper and lower die 6,4 contacts with b, gesture point under upper cavity die 6 and the no show, therefore when laterally punch 7 pushes transverse holes, upper and

lower die

6,4 is in the full closeding state on the vertical direction all the time under the effect of normal pressure and elastomer reaction force, belong to zero between two contact-making surface a, the b at interval, the metal that flows in the extrusion process can't enter between a, the b face, thereby blank 14 non-trimmings.

Claims

1. the compound forging die of entad hot extrusion enclosed of a multidigit, it is made of bearing plate, die shoe, lower cavity die, horizontal convex mould base, horizontal punch, upper cavity die, connecting rod, last pin, following pin, elastomer, it is characterized in that passing through between bearing plate and the connecting rod fixed hinge of pin composition rotary pair down, pass through the hinges of last pin composition rotary pair between connecting rod and the horizontal convex mould base; The form that cooperates with axle, interporal lacuna between die shoe and the bearing plate is formed the moving sets on the vertical direction; Laterally between convex mould base and the die shoe by the moving sets on key and the keyway composition horizontal direction.

2. the compound forging die of entad hot extrusion enclosed of a kind of multidigit according to claim 1 is characterized in that being provided with elastomer between bearing plate and the die shoe plane.