CN2060698U

CN2060698U - Forging rolls

Info

Publication number: CN2060698U
Application number: CN 90210143
Authority: CN
Inventors: 程玮; 李金水; 刘学广; 赵余清; 李乃清; 崔中山
Original assignee: DANDONG 518 INTERNAL COMBUSTION ENGINE FITTINGS FACTORY
Current assignee: DANDONG 518 INTERNAL COMBUSTION ENGINE FITTINGS FACTORY
Priority date: 1990-02-15
Filing date: 1990-02-15
Publication date: 1990-08-22

Abstract

The utility model relates to a forging roll, which adopts a cross wedge rolling mill as a foundation, a molding part is formed by three roll forming rollers, and a wedge cross-rolling mechanism and a roll forging mechanism, which use a roller as a common using roller, can be formed. The driver power can be determined according to a wedge cross-rolling force moment, the bidirectional blank rolling by one machine can be realized, the forcing roll can continuously work, the forcing roll has functions of two devices and overrunning advantages, and has a simple structure.

Description

Forging rolls

The utility model is a rotary squeeze equipment.

In the rotary squeeze field, have cross wedge rolling and two kinds of formers of roll forging at present.Shown in Figure 1 is the builder of cross wedge rolling machine, and it is identical that two rolls 32,33 turn to, and whenever circles blank 31 is shaped, and has higher efficient.But be subjected to the effect of wedge horizontal stroke 34.Blank needs rotate between two rollers and could be out of shape, and this characteristic determines its revolving body spare that can only be shaped.Shown in Figure 2 is the builder of forging roll, forges roller 42,43 switched in opposite for two, and blank 41 is nipped between two rollers gradually, is subjected to mould 44 card compressive strains.Being fit to the long flat forging base of great majority is shaped.But this equipment is finished shaping, and blank needs not the artificial or mechanical device of cracked ends back and forth to stir, the groove of more remodeling, and the base time is long, and efficient is low, is unfavorable for keeping the initial forging temperature of blank, and blank plasticity is bad, influences finish-forging filling performance and die life.Because it is these two kinds of base shaping forging equipment different aspects exist deficiency, nowadays desirable not to the utmost to become.

The purpose of this utility model provides a kind of roll forming machine, a kind of equipment with cross wedge rolling and roll forging ability, and it is based on cross wedge rolling machine, and the advantage that simple as far as possible structure is arranged and surmount.

The shaped portion of this roll forming machine is made of three edging rollers, and it is the cross wedge rolling mechanism and the roll forging mechanism of shared roller that three roller subregions form with the roller in the middle of being positioned at, and utilizes cross wedge rolling wedging stage plastic force smaller, and the dynamical system idle capacity is for the work of roll forging mechanism.Determine driving power by cross wedge rolling moment.Roll forging work corner is limited to before the wedging stage broadening of cross wedge rolling.Cross wedge rolling of this milling train or roll forging can work independently, and also can carry out roll forging work in cross wedge rolling work.Realization is that the basis has roll forging ability and continuous type edging equipment concurrently with the cross wedge rolling.

Fig. 3 is the utility model M curve figure.

Fig. 4 is the utility model structural representation.

Fig. 5 is the utility model builder schematic side view.

The utility model is determined structural strength and power based on cross wedge rolling machine, comprises reduction gearing mechanism.Its shaped portion is made of three edging rollers, three rollers 7,8,9 are arranged in parallel, roller 7 axis placed in the middle constitute vertical plane and clinoplains with other two rollers 8,9 respectively, and it is identical that roller 7 and roller 8 turn to, roller 7 and roller 9 switched in opposite, 7 fens sections of roller cooperate with roller 8,9, formation is the cross wedge rolling mechanism and the roll forging mechanism of shared roller with roller 7, and roller 7 middle parts are provided with cross wedge rolling die 10, and two ends are provided with roll forging mould 11, roller 8,9 mould settings are corresponding with roller 7, form a cross wedge rolling mechanism and two roll forging mechanisms.Through reductor 3 coupling spindles 4,4 ' driving, roller 9 is driven through gear 5,6 by roller 7 roller 7,8 by motor 1.

Fig. 3 has represented the relation of cross wedge rolling and roll forging work phase angle α (roller corner) and moment.Wherein curve 1 is the cross wedge rolling M curve, curve 2 is roll forging M curves, curve 3 is resultant moment curves, curve 4 is rated moment T, curve 1 shows in cross wedge rolling wedging phase angle α b, wedging moment Tb is significantly smaller than broadening moment, dynamical system has more idle capacity, load is discontented, utilize this part energy for roll forging work, satisfy roll forging work phase angle α a and be less than or equal to cross wedge rolling wedging phase angle α b, one of feature of the present utility model is that roll forging work phase angle α a is limited to before the wedging stage broadening of cross wedge rolling.Both can work simultaneously when Ta+Tb≤T, the utility model is provided with an accumulated energy flywheel 2 on the decelerator high speed shaft, drive energy during savings input and output material gap, flywheel 2 energy storage of the energy of roll forging mechanism work during mainly from cross wedge rolling input and output material gap.

The utility model cross wedge rolling and roll forging can work independently, also continuous operation simultaneously, blank 17 enters the cross wedge rolling zone by feeding pipe 15 to begin to be shaped, 12 stabilizations of guide plate, because two roll forging zones are arranged, cross wedge rolling adopts and once to roll two symmetrical blanks, promptly balance axial force, efficient is improved.Before cross wedge rolling finished, cutting knife 13 was separated into two with blank 17 symmetries.Two blanks 18 after the separation fall into blow tank 14, roller 7 is rotated further certain angle blank 18 and leaves rolling district at this moment, two blanks 18 enter roll forging zone separately, roll forging together in 7,8 pairs of next blank cross wedge rollings of roller simultaneously under deadweight and slideway 16 act on.Cross wedge rolling and roll forging are carried out simultaneously to differing formed object respectively, have realized the continuous bidirectional rolling of blank.

The utility model has been realized two kinds of shapings of edging by three forming rolls and littler driving power, and energy continuous operation, have the function of two equipment and the advantage that surmounts, and simple in structure, compare with existing equipment, enhance productivity 3 times, cutting down the consumption of raw materials 8～12%, prolong 1 times of die life, stop the forging folding and make file and hinder defective. Be specially adapted to the edging with interior blank to φ 80, such as edging internal-combustion engine of middle low power connecting rod blank.

Claims

1, roll forming machine, constitute by body, shaped portion, transmission mechanism, it is characterized in that shaped portion is made of three edging rollers, it is the cross wedge rolling mechanism and the roll forging mechanism of shared roller that three rollers constitute with the roller in the middle of being positioned at, and roll forging work phase angle is limited to before the wedging stage broadening of cross wedge rolling.

2, roll forming machine according to claim 1 is characterized in that the high speed shaft of reduction gearing mechanism is provided with an accumulated energy flywheel.

3, as claim 1,2 described roll forming machines, three rollers 7,8,9 that it is characterized in that shaped portion are and are arranged in parallel, and roller 7 axis placed in the middle form vertical plane and clinoplain with other two rollers 8,9 respectively, it is identical that roller 7 and roller 8 turn to, roller 7 and roller 9 switched in opposite, and 7 fens sections of roller cooperate with roller 8,9, roller 7 middle parts are provided with cross wedge rolling die, two ends are provided with the roll forging mould, and roller 8,9 mould settings are corresponding with roller 7, constitute a cross wedge rolling mechanism and two roll forging mechanisms.

4,, it is characterized in that the gear drive transmission that roller 9 is provided with by roller 8 sides as roll forming machine as described in the claim 3.