CN2649218Y

CN2649218Y - Load-carrying vehicle hub axle tube upsetting-extruding shaping die

Info

Publication number: CN2649218Y
Application number: CN 200320113563
Authority: CN
Inventors: 李克敏; 王玉林; 温志高; 杜建波
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-12-26
Filing date: 2003-12-26
Publication date: 2004-10-20
Anticipated expiration: 2013-12-26

Abstract

The utility model relates to an extrusion upsetting mold for the hub axle of the truck wheel, characterized in that using the solid bar, completing the extrusion of the surface of the wheel hub axle and the deep hole by heating one time, the lower mold of the extrusion upsetting mold uses the pre-stress structure so that the lower mold will not be damaged for subjecting to huge pressure. Comparing with the exiting technology, the utility model can save the energy, materials utilization rate is high (more than 90%), the fibrous tissue is protected against destruction, the size is accurate, the surface finish is good, and greatly improves the mechanical properties of parts, doubles the anti-fatigue life. The mold is reasonable in structure, simple in processing and convenient in operation.

Description

Bogie hub axle tube upsetting extrusion mould

Technical field:

The utility model belongs to the general vehicle technical field, is specifically related to a kind of bogie hub axle tube upsetting extrusion mould.

Background technology:

Automobile hub axle tube is mainly used in the wheel limit supporting at press welding axle housing and engineering truck drive axle two ends, belongs to important security personnel's parts.It is welded in the axle housing two ends, and semiaxis therefrom passes.In the driving process of vehicle, it not only will bear the weight of whole vehicle body and vehicle-mounted cargo, and because the variation of road conditions, it also will bear the effect of complicated alternate stress, therefore require hub axle tube will have the metal streamline that distributes vertically, fine and close metal structure and high anti-fatigue life.Conventional at present Forging Technology is die forging, need through heating for multiple times, its technology is generally: heating, and---making bad,------------the finish-forging flange is shaped the blocking flange---annealing---inside and outside machined---heat treatment---fine finishining in heating, just can produce hub axle tube, this kind manufacture craft hair is bad at solid, and consumption of materials is big.And be difficult to form the full fibre metal streamline that distributes vertically, the mechanicalness of part and anti-fatigue life are all on the low side, are difficult to satisfy vehicle to its special quality requirement.

Summary of the invention:

The purpose of this utility model be a kind of technology of design simple, can save a large amount of metal materials, and the full fibre metal tissue that can obtain to distribute vertically, thus can greatly improve the bogie hub axle tube upsetting extrusion mould of part anti-fatigue life.

For reaching above-mentioned purpose, the main technical schemes that the utility model is taked is improved existing processes, technological process is: blanking → heating → die mould → shaping → punching → outer surface processing → finished product, the compacting of employing forcing press, mainly be improved to, once the real plug material workpiece after the blanking is heated to 1100-1180 ℃, adopts forcing press through die mould, shaping, punching, the complete hollow bogie hub axle tube hair that workpiece is pressed into the full fibr tissue that distributes vertically is bad.Forming process has adopted newly-designed upsetting extrusion mould, and this lower mould has adopted the pre-stress die structure.

This bogie hub axle tube of the utility model upsetting extrusion mould, because what adopt is that once heat can be with the complete extrusion molding of endoporus, workpiece is in the die cavity of sealing like this, metal is subjected to the effect of three-dimensional compressive stress, thus the automobile hub axle tube of full fibr tissue to have grain refinement, metallographic structure and a fibr tissue consistent.Because counterdie has adopted the pre-stress die structure, the employing of this structure can make the counterdie working portion be unlikely because of bearing huge pressure and lose, and has guaranteed the requirement of mould strength.

The utility model is compared with common die forging technology, have advantages such as operation is simple, labour intensity is low, cut down the consumption of energy, save raw material, stock utilization reaches more than 90%, enhance productivity, hot-pressed full fibr tissue automobile hub axle tube has grain refinement, even, the product geometric accuracy height of metallographic structure, thereby strengthened mechanical performance of products, anti-fatigue life is enhanced about more than once, and has prolonged service life.

Specific embodiment:

Reach example in conjunction with the accompanying drawings and further specify the execute example of the utility model bogie with hub axle tube upsetting extrusion mould.

Fig. 1 is a front view of the present utility model.

Referring to Fig. 1, the counterdie of the utility model bogie hub axle tube upsetting extrusion mould has adopted the pre-stress die structure, and counterdie mainly is made up of support 1, prestressing force overcoat 2, push rod 3, die 4, gland 5.Patrix is made up of during in closure state at mould forming terrace die 6, flange contour squeeze 7, connecting rod 8.Prestressing force overcoat 2 is contained in the support 1, and die 4 is contained in the prestressing force overcoat 2, and push rod 3 is contained on support 1 bottom surface in the die 4, can move up and down, and gland 5 is contained in the upper surface of support 1.Forming terrace die 6 is contained in the flange contour squeeze 7, and the upper end of forming terrace die 6 contacts when mould is in closure state with connecting rod 8, and the upper end of flange contour squeeze 7 is contained on the connecting rod 8.Wherein in the flange contour squeeze 7 stripper and steam vent are housed.

The utility model bogie with the full fiber forging method of hub axle tube is: solid bar is heated to 1110-1180 ℃, according to the constancy of volume principle, in molding press device, extrude required blank, then blank is put into upsetting squeeze Cheng Mo, along with press is descending, forming terrace die and flange contour squeeze enter in the upsetting squeeze Cheng Mo, at the beginning, forming terrace die contacts in advance with stock, and because of there not being the filled with metal space in the forming lower die, blank has only along the direction opposite with the punch direction of motion mobile, after the blank height reaches certain position, die mould is washed open and is begun to contact with blank, the upsetting flange, and so far endoporus all is shaped with flange except that the gross weight of bottom.

Claims

1, a kind of bogie hub axle tube upsetting extrusion mould has upper die and lower die, and what it is characterized in that the counterdie employing is the pre-stress die structure.

2, a kind of bogie hub axle tube upsetting extrusion mould according to claim 1, it is characterized in that described forging is extruded into the counterdie of shape mould mainly by support [1], prestressing force overcoat [2], push rod [3], die [4], gland [5] is formed, patrix is by forming terrace die [6], flange contour squeeze [7], connecting rod [8] is formed, prestressing force overcoat 2 is contained in the support [1], die [4] is contained in the prestressing force overcoat [2], push rod [3] is contained on interior support [1] bottom surface of die [4], gland [5] is contained in the upper surface of support [1], forming terrace die [6] is contained in the flange contour squeeze [7], the upper end of forming terrace die [6] contacts when mould is in closure state with connecting rod [8], and the upper end of flange contour squeeze [7] is contained on the connecting rod [8].

3, according to a kind of bogie hub axle tube upsetting extrusion mould of claim 2, it is characterized in that in the described flange contour squeeze [7] stripper and steam vent being housed.