CN201832942U

CN201832942U - Rotary forging press flange plate forming die

Info

Publication number: CN201832942U
Application number: CN2009203178937U
Authority: CN
Inventors: 孙远民; 孙栓; 孙俊领; 王方; 王磊; 邝力全; 赵华方
Original assignee: NANZHAO COUNTY XINGLONG AUTOMOBILE FITTINGS CO Ltd
Current assignee: NANZHAO COUNTY XINGLONG AUTOMOBILE FITTINGS CO Ltd
Priority date: 2009-12-18
Filing date: 2009-12-18
Publication date: 2011-05-18
Anticipated expiration: 2019-12-18

Abstract

The utility model provides a rotary forging press flange plate forming die, which comprises an upper half-die, a lower half-die, an upper tail-die, a lower tail-die, an upper die holder and a lower die holder. The forming die also comprises an annular die insert capable of being loaded into the upper half-die and the lower half-die, and the upper half-die, the lower half-die, the annular die insert and a rotary forging press rotary head form a flange plate forming die cavity. When an axle flange plate is forged through hot rolling, the annular die insert is sheathed on a workpiece and together placed into the upper half-die and the lower half-die, the workpiece is clamped, the flange plate preforging site of the workpiece is rolled under the action of the rotary head of the rotary forging press, and the flange plate is formed in the die cavity formed of the upper half-die, the lower half-die, the annular die insert and the rotary head. Since the annular die insert adopts an integral structure, the end surface of the annular die insert serves as the die cavity end surface to contact the workpiece, without a die parting surface, so as to avoid burrs on the inner end surface of the workpiece, ensure the surface quality of the workpiece; and the annular die insert is a movably element which is easy for replacement and maintenance, so as to prolong the service life of the entire die.

Description

Rotary forging press ring flange mould

Technical field

The utility model relates to a kind of rotary forging press ring flange mould, is rotary forging press is carried out the improvement of automobile axle shaft ring flange hot-working with mould.

Background technology

As shown in Figure 1, during with rotary forging press hot-working automobile axle shaft ring flange, be by last tail mould 3, lower tail mould 4 under the oil cylinder effect, the bar portion of semiaxis forging 8 is clamped, semiaxis ring flange blocking position 8a under rotary forging press yaw 9 effect by spreading, moulding in the die cavity that between upper mold section 1, female die 2, yaw 9, constitutes.Fig. 2 is a shape schematic diagram before and after semiaxis forging 8 calendering formings.Because die cavity end face and workpiece that upper mold section 1, female die 2 constitute are long time of contact, and effect for a long time is under pressure, the heat that absorbs workpiece is many, the pressure that bears is big, particularly very easily wear and tear and be out of shape in the die joint place, not only causes the work piece inner surface out-of-flatness, and the shaping workpiece burr is big, and upper mold section 1, female die are short 2 service lifes, and still do not reach 5,000 service life after repeatedly repairing.

The utility model content

The utility model will provide a kind of rotary forging press ring flange mould, by to the existing mold architecture advances, reaches the purpose that improves workpiece surface quality, improves die life.

The realization above-mentioned purpose is taked following technical scheme: a kind of rotary forging press ring flange mould, constitute by upper mold section, female die, last tail mould, lower tail mould, upper bolster, die shoe, also comprise an annular loose piece, this annular loose piece can be packed in upper mold section, the female die, constitutes flange disc molding die cavity between upper mold section, female die, annular loose piece, the rotary forging press yaw.

The utility model adopts the method that installs annular loose piece in upper mold section, female die additional to eliminate the defective that the prior art mould exists, on rotary forging press during hot-working automobile axle shaft ring flange position, annular loose piece is enclosed within puts into upper mold section, female die on the workpiece together, clamping work pieces then, semiaxis ring flange blocking position under the effect of rotary forging press yaw by spreading, moulding in the die cavity that between upper mold section, female die, annular loose piece, yaw, constitutes.

The utility model so just do not have Burr Problem on the workpiece inner face, has guaranteed the surface quality of workpiece because annular loose piece is an overall structure, and the end face of annular loose piece contacts with workpiece as the die cavity end face, does not have die joint; Because annular loose piece is a movable part, therefore be easy to change, maintain the service life of having improved a whole set of mould.

Description of drawings

Fig. 1 is a known technology mould structure schematic diagram.

Fig. 2 is a shape schematic diagram before and after the workpiece calendering forming.

Fig. 3 is the utility model mould structure schematic diagram.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described.

As shown in Figure 3, rotary forging press ring flange mould is made of upper mold section 1, female die 2, last tail mould 3, lower tail mould 4, upper bolster 5, die shoe 6, annular loose piece 7, upper mold section 1, female die 2, last tail mould 3, lower tail mould 4 are installed in the die holder of upper bolster 5, die shoe 6 formations, annular loose piece 7 is movable parts, can pack in upper mold section 1, the female die 2, be combined to form the shape of upper mold section 1 in the prior art mould, female die 2 with upper mold section 1, female die 2.Workpiece adds man-hour, annular loose piece 7 is enclosed within puts into upper mold section 1, female die 2 on the semiaxis forging 8 together, last tail mould 3, lower tail mould 4 are under the oil cylinder effect, the bar portion of semiaxis forging 8 is clamped, semiaxis ring flange blocking position 8a under rotary forging press yaw 9 effect by spreading, moulding in the die cavity that between upper mold section 1, female die 2, annular loose piece 7, yaw 9, constitutes.The end face of annular loose piece 7 contacts with the position 8a hot extrusion of semiaxis ring flange blocking as the die cavity end face, because annular loose piece 7 is overall structures, therefore do not have die joint, overcome prior art and caused the workpiece inner face problem of burr to occur, because annular loose piece 7 is conveniently to take out movable part, whenever process a workpiece, just can lift down, it is fully cooled off, also can many use by turns, increase the service life of so a whole set of mould greatly, can reach about 1.5 ten thousand.

Claims

1. rotary forging press ring flange mould, constitute by upper mold section (1), female die (2), last tail mould (3), lower tail mould (4), upper bolster (5), die shoe (6), it is characterized in that: also comprise an annular loose piece (7), this annular loose piece (7) can be packed in upper mold section (1), the female die (2), constitutes flange disc molding die cavity between upper mold section (1), female die (2), annular loose piece (7), the rotary forging press yaw (9).