CN1049463A

CN1049463A - A kind of new method of ring blank processing

Info

Publication number: CN1049463A
Application number: CN 89106636
Authority: CN
Inventors: 于德弘; 邢光汉; 王太川; 陈奇明
Original assignee: Xian Jiaotong University
Current assignee: Xian Jiaotong University
Priority date: 1989-08-28
Filing date: 1989-08-28
Publication date: 1991-02-27
Also published as: CN1015603B

Abstract

A kind of new method that belongs to the ring blank moulding of metal manufacture field, its main feature are to adopt the seamless steel pipe material, finish the processing of ring blank by precise blanking and bulk forming technology.The present invention provides the new method for processing of a kind of low material consumption, low energy consumption, high-quality, high benefit for the production of ring blank.Adopt the present invention to process ring blank, but material-saving about 60%, operation reduces 20%, and the geometry of blank, dimensional accuracy and inherent quality all are significantly improved.

Description

A kind of new method of ring blank processing

The invention belongs to the metal manufacture field, relate to the new method of the ring blank shaping of using on a kind of ring spinning frame.

The processing of ring blank is the basis in the rings process, and the processing method that adopts has two kinds at present: first method-generally the method for employing is to utilize Sheet Metal Processing at present.Its technological process is: blanking-blanking, draw-cut edge-shaping-and the end of towards.The major defect of this method is that stock utilization is low, and operation is more, and the geometric parameter of blank and dimensional accuracy are not high, the inherent quality instability, and percent defective is higher.Second method-employing pipe material directly is shaped by lathe turning.Its technological process is: grow material to prescind-turning, cut off.The major defect of this method is that stock utilization is low, and productivity ratio is low, owing to reasons such as metallic fiber are cut off, causes the inherent quality of blank not high, directly influences the quality of finished product.

The objective of the invention is:, provide the novel processing method of a kind of low material consumption, low energy consumption, high efficiency, high-quality ring blank at the shortcoming that above two kinds of prior aries exist.

The present invention utilizes the basic principle of metal forming and the characteristics of bulk forming, adopts seamless steel pipe to do blank, finishes the processing of ring blank by technologies such as precise blanking and bulk formings.The first cover technological process of the present invention is: pipe blanking-upsetting extrusion-expansion is put in order-is cut edge; The second cover technological process is: pipe blanking-expansion is extruded into shape-side cut.

The present invention compared with prior art, major advantage is: stock utilization height, but material-saving about 60%, basic working procedure reduces more than 20%, be convenient to postorder processing, and the geometry of part, dimensional accuracy and inherent quality is significantly improved all; Moulds of industrial equipment are simple, long service life and easy to maintenance, rings factory only need use the required mould of new technology of the present invention instead and get final product, therefore invest little, instant effect.With PG1-4251 shaped steel neck is example, and prior art consumptive material 0.115kg adopts only consumptive material 0.045kg of new technology of the present invention, economical with materials 61%; With PG1-3551 shaped steel neck is example, and prior art consumptive material 0.095kg adopts only consumptive material 0.03kg of new technology of the present invention, material-saving 68%.At present about 6,000 ten thousand of rings is produced in the whole nation per year, calculates by every consumptive material 0.1kg, needs 6000 tons of high-quality steel (not comprising percent defective) altogether, but adopts every year of the present invention material-saving more than 3600 tons, and economic benefit is very remarkable.

Below in conjunction with accompanying drawing content of the present invention is described further.

Fig. 1 is the employed particular manufacturing craft schematic diagram of upsetting extrusion.

Fig. 2 expands to be made into the employed particular manufacturing craft schematic diagram of shape.

Fig. 3 expands to be extruded into the employed particular manufacturing craft schematic diagram of shape.

Wherein, [1] pipe among Fig. 1, [2] die, [3] patrix, [4] punch, [5] ejection ring, [6] ejector beam, [7] liftout plate, [8] lower bolster; The blank that [9] have been shaped among Fig. 2, [10] punch, [11] die, [12] backing plate, [13] ejector beam, [14] lower bolster; [15] punch among Fig. 3, [16] die, [17] lower cushion block, [18] knock-pin, [19] lower bolster.

When enforcement is of the present invention, at first with the seamless steel pipe of wall thickness with the prominent eaves thickness identical (or bigger) of ring blank, by the expansion of blank height+1.0 millimeters shearing (or saw, cut) blank circlewise, then annular blank is put into special-purpose mould and carried out upsetting extrusion, the structural principle of this mould as shown in Figure 1, good down pipe [1] is put into die [2], and patrix [3] is when depressing, and blank is at the die cavity internal shaping of being made up of punch [4], ejection ring [5] and die [2].After shaping is finished, patrix [3] backhaul, ejection ring [5] ejects by the blank that ejector beam [6] and liftout plate [7] will be shaped.Thereafter putting into second mold again expands and is made into shape, this mould structure as shown in Figure 2, the blank [9] that has been shaped is put into die [11], and punch [10] is when depressing, technology such as blank is finished expansion, turned in the die cavity of being made up of die [11], backing plate [12] and punch [10], shaping.Expand be made into shape and finish after, punch [10] backhaul, backing plate [12] ejects by ejector beam [13] blank of shaping.In the edger of routine, cut edge at last.Above-mentioned operation all can be carried out on common crank press.

For type blanks such as novel durable economize on electricity rings, when enforcement is of the present invention, can select the second cover technological process for use.At first with the seamless steel pipe of wall thickness with the prominent eaves thickness identical (or bigger) of ring blank, by the expansion height of blank+1.0 millimeters shearing (or saw, cut) pipe [1] circlewise, the mould of then ring-type pipe [1] being put into special use expands and is extruded into shape.The structural principle of this mould is put into die [16] with pipe [1] as shown in Figure 3, and punch [15] is when depressing, pipe [1], forming technology such as finish expansion in the die cavity that punch [15], die [16] and lower cushion block [17] are formed, squeeze, turn over.After shaping was finished, lower cushion block [17] ejected by the blank that knock-pin [18] will be shaped.In the edger of routine, cut edge then.Above-mentioned operation all can be carried out on common crank press.

Claims

1, the new method that is shaped of a kind of ring blank that belongs to the metal manufacture field is characterized in that adopting seamless steel pipe to do blank, finishes the processing of blank by precise blanking methods such as (comprise shearing) sawing, cut and bulk forming technology, and its technological process has two covers:

The first cover technological process is: pipe blanking-upsetting extrusion-expansion is put in order-is cut edge;

The second cover technological process is: pipe blanking-expansion is extruded into shape-side cut.

2, the new method that is shaped of ring blank as claimed in claim 1 is characterized in that the particular manufacturing craft that is used for upsetting extrusion in the first cover technological process is made up of die [2], patrix [3], punch [4], ejection ring [5], ejector beam [6], liftout plate [7] and lower bolster [8]; Being used to expand the particular manufacturing craft that is made into shape is made up of punch [10], die [11], backing plate [12], ejector beam [13] and lower bolster [14].

3, the new method of the adjacent blank forming of steel as claimed in claim 1 is characterized in that being used to expand the particular manufacturing craft that is extruded into shape in the second cover technological process is made up of punch [15], die [16], lower cushion block [17], knock-pin [18] and lower bolster [19].