CN106984756A

CN106984756A - Reverse arm Bending Mould

Info

Publication number: CN106984756A
Application number: CN201610038659.5A
Authority: CN
Inventors: 秦学森
Original assignee: YIDU TONGXIN PRECISION FORGINGCO Ltd
Current assignee: YIDU TONGXIN PRECISION FORGINGCO Ltd
Priority date: 2016-01-20
Filing date: 2016-01-20
Publication date: 2017-07-28

Abstract

Reverse arm Bending Mould, including base and the pressing plate being located above base, multiple limited posts are distributed with base and pressing plate, a upset seat is bolted with the end face of base, the upset seat is done including blank socket and support base, blank socket is threadedly coupled with support base using detachable, reverse arm microcephaly's jack is provided with blank socket, angle a between the axis and base end face of the jack is less than 80 degree, the present invention can improve yield rate of the reverse arm in bending process, and it is simple in construction, save electric energy.

Description

Reverse arm Bending Mould

Technical field

The present invention relates to a kind of Bending Mould, more particularly to reverse arm Bending Mould.

Background technology

Reverse arm is that motor-car resists inclined important spare part, and reverse arm has more preferable mechanical property using cast member using forge piece ratio, more ensure that the high-speed cruising of motor-car.

Present reverse arm is the cylindrical blank that 25 kilograms of weight by 120 millimeters of a diameter in forging process, is first pulled out one end of blank using pneumatic hammer, the similar multi-diameter shaft of blank shape after pulling（As shown in Figure 7）, then ladder axis blank is placed on Bending Mould carries out bending（As illustrated in Figures 5 and 6）, after blank bending, then the thinner one end of blank flattened, corrected, machined and polished, make finished product reverse arm（As shown in Figure 8）.

But it is not in place being bent during bending at the A points of blank often in such as Fig. 5 because the thicker one end diameter of blank is excessive, cause finished product reverse arm（As shown in Figure 8）Major part lower end B points at be not fully filled, and then reduce yield rate, current settling mode is using increasing billet weight, when forging blank is placed, blank is deliberately tilted toward B points position, although yield rate is improved, but it is not clearly to improve, and need to increase billet weight, improve production cost.

The content of the invention

The technical problem to be solved in the present invention is to provide reverse arm Bending Mould, yield rate of the reverse arm in bending process can be improved, and it is simple in construction, save electric energy.

In order to solve the above problems, the technical scheme is that：Reverse arm Bending Mould, including base and the pressing plate being located above base, multiple limited posts are distributed with base and pressing plate, a upset seat is bolted with the end face of base, the upset seat is done including blank socket and support base, blank socket is threadedly coupled with support base using detachable, and reverse arm microcephaly's jack is provided with blank socket, and the angle a between the axis and base end face of the jack is less than 80 degree.

Beneficial effects of the present invention are：The thinner one end of reverse arm is inserted into jack, then the thicker one end of reverse arm is hit downwards by pressing plate using forcing press so that the material in Fig. 7 at B points is very sufficient, reduces the probability being not fully filled in Fig. 8 at B points during forging, yield rate is improved, production cost is reduced.

Brief description of the drawings

The present invention is described further below in conjunction with the accompanying drawings：

Fig. 1 is front view of the present invention,

Fig. 2 is dimensional structure diagram of the invention, in order to make it easy to understand, hide pressing plate in figure,

Fig. 3 is the diagrammatic cross-section at C-C in Fig. 1,

Fig. 4 is schematic rear view of the invention,

Fig. 5 be background technology in refer in the prior art to reverse arm carry out bending schematic front view,

Fig. 6 be background technology in refer in the prior art to reverse arm carry out bending dimensional structure diagram,

Fig. 7 is the schematic front view of the blank after pulling referred in background technology,

Fig. 8 is to be mentioned to the dimensional structure diagram of finished product reverse arm in background technology.

Embodiment

For the technological progress that those skilled in the art present invention easier to understand is done to prior art, before being elaborated to the present invention, first prior art is described further.

Present reverse arm is the cylindrical blank that 25 kilograms of weight by 120 millimeters of a diameter in forging process, is first pulled out one end of blank using pneumatic hammer, the similar multi-diameter shaft of blank shape after pulling（Shape is as shown in Figure 7）, then ladder axis blank is placed on Bending Mould carries out bending（As illustrated in Figures 5 and 6）, after blank bending, then the thinner one end of blank flattened, corrected, machined and polished, make finished product reverse arm（As shown in Figure 8）.

But it is not in place being bent during bending at the A points of blank often in such as Fig. 5 because the thicker one end diameter of blank is excessive, cause finished product reverse arm（As shown in FIG. 7 and 8）The B points of major part lower end be at A points and be not fully filled, B points position at the B points of blank reverse arm shown in Fig. 7 after bending for finished product reverse arm in Fig. 8, and then reduce yield rate, current settling mode is, using billet weight is increased, when forging blank is placed, blank deliberately to be tilted toward B points position, although yield rate is improved, but improve be not clearly, and need increase billet weight, improve production cost.

The present invention is elaborated below, as shown in Fig. 1 to 4：Reverse arm Bending Mould, including base 1 and the pressing plate 2 being located above base 1, multiple limited posts 3 are distributed with base 1 and pressing plate 2, a upset seat is bolted with the end face of base 1, the upset seat is done including blank socket 5 and support base 4, blank socket 5 is threadedly coupled with support base 4 using detachable, and reverse arm microcephaly jack 51 is provided with blank socket 5, and the angle a between the axis and the end face of base 1 of the jack 51 is less than 80 degree.

The thinner one end of reverse arm is inserted into jack 51, then hit the thicker one end of reverse arm blank 6 downwards by pressing plate 2 using forcing press, the strike point of application is located at the end of the thicker one end of reverse arm blank 6（At F points in Fig. 3）, the position that the fulcrum that reverse arm blank 6 is bent is combined positioned at the thicker one end of the blank with thinner one end（At D points in Fig. 3）Reverse arm blank 6 is during bending, reverse arm blank 6 at B points excessive because of deformation will not be extruded and attenuate to blank two ends, so that the blank in such as Fig. 3, Fig. 7 or Fig. 8 at B points is sufficient, solve the insufficient technological deficiency of reverse arm blank 6 at B points.

And in the prior art the bending of reverse arm blank when be by the pressing plate 2 in Fig. 5 or 6 by contour plate using the E points in Fig. 5 as the point of application, the two ends of reverse arm blank bend as fulcrum to blank, cause the reverse arm blank in BENDING PROCESS by the point of application as two ends extruding attenuates the blank at B points can be caused inadequate.

Therefore the yield rate in reverse arm bending production can be effectively improved using the present invention, reduces production cost.

Claims

1. reverse arm Bending Mould, including base（1）Be located at base（1）The pressing plate of top（2）, base（1）And pressing plate（2）On be distributed with multiple limited posts（3）, it is characterised in that：In base（1）End face on be bolted with a upset seat, the upset seat is done including blank socket（5）And support base（4）, blank socket（5）With support base（4）Using detachable threaded connection, in blank socket（5）It is interior to be provided with reverse arm microcephaly's jack（51）, the jack（51）Axis and base（1）End face between angle a be less than 80 degree.