CN202224580U

CN202224580U - Roll forging composite die for blanks

Info

Publication number: CN202224580U
Application number: CN2011203066801U
Authority: CN
Inventors: 倪建良; 陶亚征
Original assignee: JIANGSU HONGBAO FORGING CO Ltd
Current assignee: JIANGSU HONGBAO FORGING LIMITED BY SHARE LTD.
Priority date: 2011-08-23
Filing date: 2011-08-23
Publication date: 2012-05-23
Anticipated expiration: 2021-08-23

Abstract

The utility model discloses a roll forging composite die for blanks, which comprises a plurality of roll forging upper dies and a plurality of roll forging lower dies. Each roll forging upper die consists of an upper die holder and a first insert fixedly disposed on the upper die holder, each roll forging lower die comprises a lower die holder and a second insert fixedly disposed on the lower die holder, each first insert is connected with the corresponding upper die holder by a screw, each second insert is connected with the corresponding lower die holder by a screw, the upper die holders and the lower die holders are made of Number 45 steel, the first inserts and the second inserts are made of high-speed steel, and die cavities are disposed on the first inserts and the second inserts. The roll forging die is long in service life, high in productivity and low in production cost.

Description

A kind of preforming roll forging composite die

Technical field

The utility model relates to a kind of preforming roll forging composite die, relates in particular to a kind of roll forging composite die that is used to process the connecting rod base.

Background technology

China produces the producer of connecting rod and adopts roller forging sheet stamping technology at present; After the blank heating; Through last forging roller die tool and the type groove of forging the roller die tool down, blank is adopted living plastic deformation, thereby obtains needed shape; Connecting rod forging with the production of roller forging sheet stamping method; All can reach the requirement higher at aspects such as surface quality, interior metal tissue, metallic fiber direction and mechanical strengths, and equipment is simple, working condition is good, productivity ratio is higher, be convenient to realize mechanization, automation, is suitable in large quantities of a large amount of productions, using than other blank-making methods.

In the prior art, going up of producing that connecting rod uses forged the roller die tool and forged the roller die tool down and process by the 5CrNiMo material, and the defective of the mould of processing with this material is: die life is shorter, and production capacity is lower, and production cost is higher.

Therefore, be necessary to provide a kind of roll forging mould that solves the problems of the technologies described above.

The utility model content

The utility model technical problem to be solved is: a kind of roll forging composite die that can improve die life and production capacity is provided.

For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of preforming roll forging composite die, and it comprises: several roll forging patrix and several roll forging counterdie, said roll forging patrix comprises: upper bolster and be immobilizated in first on the upper bolster and insert; Said roll forging counterdie comprises: die shoe and be immobilizated in second on the die shoe and insert; Said first insert with upper bolster between adopt screw to be connected, said second insert with die shoe between the employing screw be connected, said upper bolster and die shoe are processed by No. 45 steel; Said first, second inserted and processed by high-speed steel, and said first, second is equipped with die cavity on inserting.

The beneficial effect of the utility model is: process by No. 45 steel through said upper bolster and die shoe, said first, second inserted and processed by high-speed steel, and said first, second is equipped with die cavity on inserting.Thereby the wearability of high-speed steel capable of using and high-temperature stability reach the purpose that improves die life.

Description of drawings

Fig. 1 is the structural representation of roll forging composite die.

Among Fig. 1: 1, roll forging patrix, 10, upper bolster, 100, the preforming roll forging composite die, 11, first inserts, and 110,210, die cavity, 12, screw, 2, the roll forging counterdie, 20, die shoe, 21, second inserts.

The specific embodiment

See also Fig. 1; A kind of preforming roll forging composite die 100; Said preforming roll forging composite die 100 comprises: several roll forging patrix 1 and several roll forging counterdie 2; Said roll forging patrix 1 comprises: upper bolster 10 and be immobilizated in first on the upper bolster 10 and insert 11, said roll forging counterdie 2 comprises: die shoe 20 and be immobilizated in second on the die shoe 20 and insert 21, said first insert 11 with upper bolster 10 between adopt screw 12 to be connected; Said second insert 21 with die shoe 20 between adopt screw to be connected; Said upper bolster 10 and die shoe 20 are processed by No. 45 steel, and said first, second inserted and 11,21 processed by high-speed steel, and said first, second inserted and be equipped with die cavity 110,210 on 11,21.

The utility model is processed by No. 45 steel through said upper bolster 10 and die shoe 20, and said first, second inserted and 11,21 processed by high-speed steel, and said first, second inserted and be equipped with die cavity on 11,21.Thereby the wearability of high-speed steel capable of using and high-temperature stability reach the purpose that improves die life.This kind roll forging mould also has advantages such as production capacity height, production cost be low in addition.

Claims

1. preforming roll forging composite die; It is characterized in that: said preforming roll forging composite die comprises: several roll forging patrix and several roll forging counterdie; Said roll forging patrix comprises: upper bolster and be immobilizated in first on the upper bolster and insert, said roll forging counterdie comprises: die shoe and be immobilizated in second on the die shoe and insert, said first insert with upper bolster between adopt screw to be connected; Said second insert with die shoe between adopt screw to be connected; Said upper bolster and die shoe are processed by No. 45 steel, and said first, second inserted and processed by high-speed steel, and said first, second is equipped with die cavity on inserting.