CN202479345U

CN202479345U - Trimming and punching composite die for engineering mechanical track link

Info

Publication number: CN202479345U
Application number: CN2011205114759U
Authority: CN
Inventors: 张艳春; 姬连凯
Original assignee: CSR Shijiazhuang Rolling Stock Co Ltd
Current assignee: CRRC Shijiazhuang Co Ltd
Priority date: 2011-12-09
Filing date: 2011-12-09
Publication date: 2012-10-10
Anticipated expiration: 2021-12-09

Abstract

The utility model relates to a trimming and punching composite die for an engineering mechanical track link, belonging the technology field of punching and shearing dies; the trimming and punching composite die comprises an upper die seat and a lower die seat, the upper die seat and the lower die seat are connected via a guide column and a guide sleeve, a concave die and a punch are fixed at the lower part of the upper die seat, and a convex die is fixed at the top surface of the upper die seat, the trimming and punching composite die is characterized by also comprising a die plate in a floating disposing between the upper die seat and the concave die, an ejector is fixed at the bottom surface of the die plate, the two sides of the die plate are respectively fixedly connected with a U-shaped plate, the U-shaped plate is in a sliding cooperation with a pull bar, the pull bar is vertically fixed on the lower die seat, and a stop boss is disposed at the top of the pull bar; The trimming and punching composite die is adopted, in one work stroke of a press, steps of trimming, punching and forge piece ejecting are completed; trimming and punching are not performed simultaneously, with punching before trimming, and load of the press can be reduced, and the novel die is also advantaged by convenient operation, safety and reliability, capability of reducing labor intensity, reducing punching steps, and reducing production cost, and improvement of production efficiency and device utilization rate.

Description

A kind of engineering machinery chain rail joint edge-cutting and hole-punching composite die

Technical field

The utility model relates to a kind of engineering machinery chain rail joint edge-cutting and hole-punching composite die, belongs to the punching and shearing die technical field.

Background technology

Chain rail joint be excavator four-wheel one with on important forging, its technological process is: band sawing machine sawing-Frequency Induction Heating-pneumatic hammer blocking-friction press finish-forging-crank press side cut-punch press punching-friction press shaping-cooling.Can be known that by above technological process this forging technological process is long, production efficiency is low, and labor strength is big, and production cost is high and to take equipment many.

The utility model content

The utility model technical issues that need to address provide a kind of engineering machinery chain rail joint edge-cutting and hole-punching composite die, and the hot forging of realizing die-forging forming is accomplished side cut, four hole two procedures of punching out in the one action stroke of crank press.

For solving the problems of the technologies described above, the technical scheme that the utility model adopted is:

Comprise upper and lower die holder, connect by guide pillar, guide pin bushing between the upper and lower die holder that the upper bolster below is die and drift fixedly; Die shoe end face solid punch, also comprising floats be arranged between upper bolster and the die template, the template bottom surface is backing-out punch fixedly; The template both sides U template that is connected; The U template pull bar that is slidingly matched, pull bar vertically is fixed on the die shoe, and the pull bar top is provided with stop ledge.

The further improvement of the utility model is:

Said drift comprises drift one, drift head two and drift three.

Said punch and die and drift and radially single face gap protruding, die are 1mm; Drift and backing-out punch, and the radially single face gap of die and backing-out punch is 2mm.

Because the technological progress of having adopted technique scheme, the utility model to obtain is:

The utility model adopts the edge-cutting and hole-punching composite die, in the one action stroke of forcing press, and work step such as accomplish that side cut, punching and forging eject.

Side cut, punching are staggered and are carried out; Punching is preceding, cut edge after, can reduce the load of forcing press; Forging leans on the punch location; Can satisfy forging quality and batch production requirement, and easy to operate, safe and reliable, reduced labour intensity, reduced die-cut step, reduced production cost, production efficiency and usage ratio of equipment all must improve.

Description of drawings

Fig. 1 is a kind of structural representation master cutaway view of engineering machinery chain rail joint edge-cutting and hole-punching composite die;

Fig. 2 is a kind of structural representation left view of engineering machinery chain rail joint edge-cutting and hole-punching composite die.

Wherein: 1, guide pin bushing, 2, guide pillar, 3, upper bolster, 4, backing-out punch, 5, drift one, 6, drift two, 7, drift three, 8, template, 9, the U-shaped plate, 10, die socket, 11, die, 12, punch, 13, pull bar, 14, die shoe.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is explained further details:

Fig. 1 or shown in Figure 2, this utility model comprises upper and lower die

holder

3,14, upper and lower die holder 3, is connected by guide pillar 2, guide pin bushing 1 between 14; Upper bolster 3 belows are drift fixedly, and drift comprises drift 1, drift 26, drift 37 and die 11, die shoe 14 end face solid punch 12; Also comprising floats be arranged between upper bolster 3 and the die 11 template 8; Template 8 bottom surfaces are backing-out punch 4 fixedly, the template 8 both sides U template 9 that is connected, U template 9 pull bar 13 that is slidingly matched; Pull bar 13 vertically is fixed on the die shoe 14, and pull bar 13 tops are provided with stop ledge.

Punch 12 and die 11 and drift and radially single face gap protruding, die 12,11 are 1mm; Drift and backing-out punch 4, and the radially single face gap of die 11 and backing-out punch 4 is 2mm.

When the slide block of forcing press was in top dead-centre, pull bar 13 was held U-shaped plate 9 drive templates 8 through its head stop ledge and is contacted with die socket 10, and backing-out punch 4 is in extreme lower position.

The task of this mould be the hot forging of die-forging forming in the one action stroke of forcing press, accomplish two work steps of edge-cutting and hole-punching.

During work, the hot forging of die-forging forming is placed on the punch 12, when the slide block of forcing press moves down; Backing-out punch 4 at first contacts forging and it is compressed, and drift 1, drift 26, drift 37 contact punching with the forging gross weight to begin, along with the slide block of forcing press continues to move down; Die 11 contacts with forging flash; Punching finishes, and the beginning of cutting edge arrives bottom dead centre for extremely up to the slide block of forcing press.During backhaul; Die 11, drift 1, drift 26, drift 37, backing-out punch 4, U-shaped plate 9, template 8, upper bolster 3 are up together; On move certain stroke back stay 13 and hold through its head stop ledge that U-shaped plate 9 drives templates 8, backing-out punch 4 relative dies 11 move downward; Forging is ejected in die 11, thereby realized separating of forging and drift 1, drift 26, drift 37 that the slide block of forcing press arrives top dead-centre.Punched scrap is discharged from the die shoe hole, and forging is taken out from punch 12, and edge-cutting and hole-punching finishes.

Because punching hole diameter is less, drift is thinner, is turned round for a long time and damages for fear of drift, and it is fixed on the upper bolster, and punch is fixed on die shoe, and die is fixed on upper bolster, and backing-out punch ejects forging from top to down.

Be to reduce the load of forcing press, edge-cutting and hole-punching is staggered carry out, punching is preceding, cut edge after, forging leans on punch 12 location;

Mould is reasonable in design, can satisfy forging quality and batch production requirement, and easy to operate, safe and reliable, reduced labour intensity, reduced die-cut step, reduced production cost, production efficiency and usage ratio of equipment improve.

Claims

1. an engineering machinery chain rail joint edge-cutting and hole-punching composite die comprises upper and lower die holder, is connected by guide pillar, guide pin bushing between the upper and lower die holder; Upper bolster below is die and drift fixedly, and die shoe end face solid punch is characterized in that: also comprising unsteady be arranged between upper bolster and the die template; The template bottom surface is backing-out punch fixedly, the template both sides U template that is connected, the U template pull bar that is slidingly matched; Pull bar vertically is fixed on the die shoe, and the pull bar top is provided with stop ledge.

2. a kind of engineering machinery chain rail joint edge-cutting and hole-punching composite die according to claim 1, it is characterized in that: said drift comprises drift one, drift head two and drift three.

3. a kind of engineering machinery chain rail joint edge-cutting and hole-punching composite die according to claim 2, it is characterized in that: said punch and die and drift and radially single face gap protruding, die are 1mm; Drift and backing-out punch, and the radially single face gap of die and backing-out punch is 2mm.