CN201579370U

CN201579370U - Wheel flange special-shaped ring forging tooling

Info

Publication number: CN201579370U
Application number: CN2009202995127U
Authority: CN
Inventors: 赵长宝; 李启才
Original assignee: JIANGYIN ZHENHONG HEAVY FORGING CO Ltd
Current assignee: JIANGYIN ZHENHONG HEAVY FORGING CO Ltd
Priority date: 2009-12-22
Filing date: 2009-12-22
Publication date: 2010-09-15
Anticipated expiration: 2019-12-22

Abstract

The utility model relates to a wheel flange special-shaped ring forging tooling, which is used for forging wheel flange special-shaped ring forgings. The tooling comprises a stepped punch head (1), a press die (2), a main mill roller (3) and a core roller (4); the stepped punch head (1) is formed by a truncated cone (1.1) and a step frustum (1.2); a stepped cavity is arranged at the center position of the press die (2); a conical bore I (2.1) is arranged on the lower portion of the stepped cavity; a stepped hole is arranged in the middle of the stepped cavity; a through hole (2.2) with a circular arc is arranged on the lower portion of the stepped hole; a conical bore II (2.3) is arranged on the upper portion of the stepped hole; a straight hole (2.4) is arranged on the upper portion of the stepped cavity; the middle of the inner edge of the main mill roller (3) is formed by sequentially connecting a straight section (3.1), an inverted conical section I (3.2), a concave arc section (3.3) and an inverted conical section II (3.4) from bottom to top in end-to-end manner; a convex shoulder (4.1) is arranged in the middle of the core roller (4); and an inclined surface (4.2) is arranged on the upper end surface of the convex shoulder (4.1). The charging weight of a wheel flange is 1080kg in charging according to a rectangular cross section mill ring, and the special-shaped ring forgings of the wheel flange special-shaped ring forging tooling only charges 730kg, thereby greatly saving raw materials.

Description

Tool for forging special-shape ring for flange

(1) technical field

The utility model relates to a kind of tool for forging special-shape ring for flange.Be used to forge forging special-shape ring for flange.Belong to technical field of forging.

(2) background technology

Wheel rim is the up strength member of walking part of large ore roller coaster, the shape of this part as shown in Figure 1, the characteristics of its cross section are the circular arcs that external diameter one end has R76mm, the other end of internal diameter has the recessed shelves of dark 78mm, wide 98.5mm.If will be with above-mentioned circular arc and recessed shelves, going out key by the rolling ring rolling be before rolling encircles, and the shape that blank is manufactured, traditional way are to roll ring by the square-section to feed intake, and weight then is 1080kg.Raw material have been wasted so greatly.

(3) summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of and can save the raw-material tool for forging special-shape ring for flange that feeds intake.

The purpose of this utility model is achieved in that a kind of tool for forging special-shape ring for flange, and described frock comprises a step drift, a press-moulding die, a king roller and a core roller;

Described step drift is made up of the first half and the latter half two parts, and wherein the first half is a frustum of a cone, and the latter half is a step frustum;

Described press-moulding die profile is square, and the press-moulding die center is provided with a stepped ramp type die cavity, and the bottom of this step die cavity is a conical bore I, the centre is a stepped hole, the bottom of this stepped hole is the through hole of a band circular arc, and the top of this stepped hole is a conical bore II, and this stepped ramp type die cavity top is a straight hole;

One straight section, an inverted cone segment I, a concave arc section and an inverted cone segment II totally four sections end to end formations are arranged in the middle of the described king roller inner edge from bottom to top successively;

Be provided with a convex shoulder in the middle of the described core roller, an inclined-plane is arranged in the upper surface of convex shoulder.

The beneficial effects of the utility model are:

Wheel rim feeds intake weight then for 1080kg if roll ring by the square-section, and adopts the utility model special-shaped ring forgeable 730kg that only feeds intake, and has saved raw material greatly.

(4) description of drawings

The rim cross section figure that Fig. 1 relates to for the utility model.

The step drift outside drawing that Fig. 2 relates to for the utility model.

The press-moulding die structural representation that Fig. 3 relates to for the utility model.

The wheel rim blank shape figure that Fig. 4 relates to for the utility model.

The king roller outside drawing that Fig. 5 relates to for the utility model.

The core roller outside drawing that Fig. 6 relates to for the utility model.

The wheel rim breaking down figure that Fig. 7 relates to for the utility model.

Fig. 8 is a wheel rim forging drawing of the present utility model.

Among the figure:

Step drift 1, frustum of a cone 1.1, step frustum 1.2;

Press-moulding die 2, conical bore I 2.1, through hole 2.2, conical bore II 2.3, straight hole 2.4;

King roller 3, straight section 3.1, an inverted cone segment I 3.2, a concave arc section 3.3 and an inverted cone segment II 3.4;

Core roller 4, convex shoulder 4.1, inclined-plane 4.2.

(5) specific embodiment

The shape of wheel rim part as shown in Figure 1, the characteristics of its cross section are the circular arcs that external diameter one end has R76mm, the other end of internal diameter has the recessed shelves of dark 78mm, wide 98.5mm.If will will above-mentioned circular arc and recessed shelves, by roll over ring rolling go out key be roll over ring before, the shape that blank is manufactured when having designed base for this reason, forges the step drift 1 that comes with the recessed shelves of endoporus and sees shown in Figure 2ly, and the circular arc of cylindrical is extruded next press-moulding die 2 sees shown in Figure 3.

Adopt the above-mentioned row of go up putting into to carry out base, the shape that makes the wheel rim blank as shown in Figure 4.According to the situation of workpiece section material distribution and the principle of metal plastic deformation, the required material of workpiece the first half when rolling wants many, so when base, required many materials are increased on the height that is placed on the first half.When the design king roller, just consider that leaving one section highly makes material requested can enter die cavity in proper order when rolling, as shown in Figure 5 like this.According to the recessed shelves of workpiece diameter, when design core roller, increase a corresponding convex shoulder, plastic deformation of metal when rolling has designed a corresponding inclined-plane in the convex shoulder upper surface, sees shown in Figure 6.Prepare by technology and frock, roll out the collar forging of odd-shaped cross section, forging drawing is seen Fig. 7 and Fig. 8 after schematic diagram during its blank breaking down and the finish to gauge.

Shape and structure feature to described step drift, press-moulding die, king roller and core roller describes in further detail below:

Referring to Fig. 2, the step drift outside drawing that Fig. 2 relates to for the utility model.As seen from Figure 2, described step drift 1 is made up of the first half and the latter half two parts, wherein the first half is a frustum of a cone 1.1, the top butt place rounding off of this frustum of a cone 1.1, the latter half is a step frustum 1.2, the step place rounding off of this step frustum 1.2, this step frustum 1.2 and described frustum of a cone 1.1 bottom rounding ofves.

Referring to Fig. 3, the press-moulding die structural representation that Fig. 3 relates to for the utility model.As seen from Figure 3, described press-moulding die 2 profiles are square, press-moulding die 2 centers are provided with a stepped ramp type die cavity, the bottom of this step die cavity is a conical bore I 2.1, the centre is a stepped hole, the bottom of this stepped hole is the through hole 2.2 of a band circular arc, and the top of this stepped hole is a conical bore II 2.3, and this stepped ramp type die cavity top is a straight hole 2.4.

Referring to Fig. 5, the king roller outside drawing that Fig. 5 relates to for the utility model.As seen from Figure 5, in the middle of described king roller 3 inner edges straight section 3.1, an inverted cone segment I 3.2, a concave arc section 3.3 and an inverted cone segment II 3.4 totally four sections end to end formations are arranged successively from bottom to top.

Referring to Fig. 6, the core roller outside drawing that Fig. 6 relates to for the utility model.As seen from Figure 6, be provided with a convex shoulder 4.1 in the middle of the described core roller 4, an inclined-plane 4.2 is arranged in the upper surface of convex shoulder 4.1.

Claims

1. a tool for forging special-shape ring for flange is characterized in that described frock comprises a step drift (1), a press-moulding die (2), a king roller (3) and a core roller (4);

Described step drift (1) is made up of the first half and the latter half two parts, and wherein the first half is a frustum of a cone (1.1), and the latter half is a step frustum (1.2);

Described press-moulding die (2) profile is square, press-moulding die (2) center is provided with a stepped ramp type die cavity, the bottom of this step die cavity is a conical bore I (2.1), the centre is a stepped hole, the bottom of this stepped hole is the through hole (2.2) of a band circular arc, the top of this stepped hole is a conical bore II (2.3), and this stepped ramp type die cavity top is a straight hole (2.4);

One straight section (3.1), an inverted cone segment I (3.2), a concave arc section (3.3) and an inverted cone segment II (3.4) totally four sections end to end formations are arranged in the middle of described king roller (3) inner edge from bottom to top successively;

Be provided with a convex shoulder (4.1) in the middle of the described core roller (4), an inclined-plane (4.2) is arranged in the upper surface of convex shoulder (4.1).