CN101257984B

CN101257984B - Upsetting method and upsetting apparatus

Info

Publication number: CN101257984B
Application number: CN2006800329277A
Authority: CN
Inventors: 大泷笃史
Original assignee: Showa Denko KK
Current assignee: Resonac Holdings Corp
Priority date: 2005-09-09
Filing date: 2006-09-08
Publication date: 2011-12-07
Anticipated expiration: 2026-09-08
Also published as: CN101257984A

Abstract

The present invention provides an upsetting method capable of manufacturing, by a minimum load, an upset article having swelled parts formed in a bent shape. A bar-like material (1) is mounted on a receiving die (11) so as not to move in the axial direction, the parts (2) of the material (1) are disposed in insertion holes (21) formed in guides (20) and holding the planned swelling parts (2) of the material (1) in the inserted state so as not to buckle. Next, the planned swelling parts (2) of the material (1) exposed to spaces between the heads of the guides (20) and the receiving die (11) are swelled to radially outward by moving the guides (20) in directions opposite to the moving directions of punches (30) while the planned swelling parts (2) of the material (1) are axially pressed by the punches (30). In the upsetting method, the planned swelling parts (2) of the material (1) are bent while the planned swelling parts (2) are being swelled.

Description

Upsetting processing method and upsetting processing unit (plant)

Technical field

Employed upsetting processing method and upsetting processing unit (plant) when the present invention relates to make vehicle (automobile, rail vehicle etc.) and having the product of the bellying that bloats to the direction outside radially with support, piston etc.

Background technology

Generally in upsetting processing, if adding bar-shaped blank buckling in man-hour, then its upsetting processed goods shape defect that becomes is impaired as the value of product.So,, the motion of following such upsetting processing method had been proposed in the past in order to make buckling be difficult for take place.

Promptly, bar-shaped blank is moved blocked state with axial direction be installed in and bear on the mould, and the reservations (promptly processing reservations) that bloat of blank are inserted wildcard and are placed in the inserting hole set on the guide way and remain the buckling blocked state this is bloated reservations.Then, with drift the reservations that bloat of blank are pressurizeed at axial direction on one side, guide way is moved on one side to the rightabout of the moving direction of drift, thereby the reservations that bloat that make at the leading section of guide way and bear the blank that exposes between the mould bloat (for example, with reference to patent documentation 1-4) to the direction outside radially.

According to this upsetting processing method, has following advantage: not only can prevent the buckling of blank as described above, can also the reservations that bloat of blank be bloated with low load.

Upsetting processed goods by this upsetting processing method is obtained for example is used as the preform of vehicle with the manufacturing usefulness of products such as support.

Patent documentation 1: Japanese kokai publication hei 9-253782 communique

Patent documentation 2: the flat 7-506768 communique of Japanese Unexamined Patent Application Publication

Patent documentation 3: TOHKEMY 2005-59097 communique

Patent documentation 4: TOHKEMY 2005-144554 communique

Summary of the invention

Bellying in making the product of each kind is under the situation of product of curved shape, preferably uses the blank that is pre-formed the sort of shape as preform, improves stock utilization, reduces worker ordinal number etc. seeking.

But in existing above-mentioned upsetting processing method, it is very difficult with respect to the preform of bending shaft to form bellying.On the other hand, after forming bellying, this bellying is implemented bending machining, the such difficult point of load that existence must be bigger in order to make the bellying bending.And then also have such problem: though want crooked bellying, bellying self is bending but neck flexion between bellying and the axial region not, or the interior lateral circle surface portion in the curved side of bellying produces fold and that surface texture takes place is bad.Therefore, the such processing of crooked this bellying is extremely difficult after forming bellying.

Preferred implementation of the present invention is in view of the above-mentioned and/or other problems of correlation technique is made.Preferred implementation of the present invention can significantly be improved existing method and/or device.

The present invention, finish in view of above-mentioned technical background, its purpose is, provide can with the load of trying one's best low make bellying from as the upsetting processing method of the upsetting processed goods of curved shape, by the resulting upsetting processed goods of this method and in described method employed upsetting processing unit (plant).

Other purposes of the present invention and advantage can be clear and definite by following preferred implementation.

The invention provides following scheme.Wherein, in this manual, the direction that bloats reservations of crooked blank is called the width that bloats reservations of blank.That is, the reservations that bloat of blank are bent on its width.

(1) a kind of upsetting processing method, bar-shaped blank is moved blocked state with axial direction to be installed on and to bear mould, and the reservations that bloat of blank are disposed in the inserting hole, and this inserting hole is arranged on the guide way, the reservations that bloat of blank is inserted logical the maintenance with the buckling blocked state;

Then, with drift the reservations that bloat of blank are pressurizeed in the axial direction on one side, on one side guide way is moved to the rightabout of the moving direction of drift, make thus the leading section of guide way with bear the blank that exposes between the mould bloat reservations to radially bloating outside the direction; The method is characterized in that,

On one side the reservations that bloat of blank are bloated, on one side bending bloat reservations.

(2) the upsetting processing method of being put down in writing according to preceding paragraph 1, wherein,

Support under the state of buckling blocked state will bloating reservations by the support portion, bending bloats reservations, and this support portion is configured in the side that bending bloats reservations with respect to bloating reservations.

(3) the upsetting processing method of being put down in writing according to preceding paragraph 1 or 2, wherein,

By making guide way and bearing at least one side in the mould, be that rotate at the center with turning cylinder perpendicular to the face that comprises the blank axle, thereby crooked blank bloat reservations.

(4) a kind of upsetting processed goods is by obtaining as the upsetting processing method that each is put down in writing in the preceding paragraph 1～3.

(5) a kind of upsetting processing method, the axial direction pars intermedia of bar-shaped blank is moved blocked state with axial direction to be installed on and to bear mould, and the reservations that bloat of the axial direction both sides of blank are disposed at respectively in the inserting hole, and this inserting hole is arranged on the guide way, the reservations that bloat of blank is inserted logical the maintenance with the buckling blocked state;

Then, with drift two of blank is bloated reservations pressurization in the axial direction simultaneously respectively on one side, on one side each guide way is moved to the rightabout of the moving direction of the drift of correspondence, make thus the leading section of each guide way with bear the blank that exposes between the mould two bloat reservations simultaneously respectively to radially bloating outside the direction; The method is characterized in that,

On one side make two of blank bloat reservations simultaneously respectively and bloat, on one side crooked two at least one that bloat in the reservations bloat reservations.

(6) the upsetting processing method of being put down in writing according to preceding paragraph 5, wherein,

(7) the upsetting processing method of being put down in writing according to preceding

paragraph

5 or 6, wherein,

Is that rotate at the center by making guide way with the turning cylinder perpendicular to the face that comprises the blank axle, thereby bending bloats reservations.

(8) a kind of upsetting processed goods is by obtaining as the upsetting processing method that each is put down in writing in the preceding paragraph 5～7.

(9) a kind of upsetting processing unit (plant) has: the mould that bears that bar-shaped blank is moved the blocked state installation with axial direction;

Guide way, it has inserts the logical inserting hole that keeps with the reservations that bloat of blank with the buckling blocked state;

The drift that reservations are pressurizeed in the axial direction that bloats to the blank in the inserting hole that is disposed at guide way; With

The guide way that guide way is moved to the rightabout of the moving direction of drift moves uses drive unit;

Constitute, make at the leading section of guide way and the reservations that bloat of bearing the blank that exposes between the mould bloat to the direction outside radially; This device is characterised in that,

The bending apparatus that bloats reservations that possesses crooked blank.

(10) the upsetting processing unit (plant) of being put down in writing according to preceding paragraph 9, wherein,

Constitute, Yi Bian the reservations that bloat of blank are bloated, Yi Bian bloat reservations by the bending apparatus bending.

(11) the upsetting processing unit (plant) of being put down in writing according to preceding paragraph 9 or 10, wherein,

Also possess the support portion, this support portion is configured in and bloats the reservations curved side, will bloat reservations and support to the buckling blocked state with respect to the reservations that bloat of blank.

(12) according to each upsetting processing unit (plant) of putting down in writing in the preceding paragraph 9～11, wherein,

Bending apparatus by making guide way and bearing at least one side in the mould, be that rotate at the center with the turning cylinder perpendicular to the face that comprises the blank axle, thereby bending bloats reservations.

(13) the upsetting processing unit (plant) of being put down in writing according to preceding paragraph 12, wherein,

Also possesses the change mechanism that the position of turning cylinder is changed.

(14) a kind of upsetting processing unit (plant) possesses: the mould that bears that the axial direction pars intermedia of bar-shaped blank is moved the blocked state installation with axial direction;

Two guide waies, it has inserts the logical inserting hole that keeps with the buckling blocked state respectively with the reservations that bloat of the axial direction both sides of blank;

Blank in the inserting hole that is disposed at each guide way respectively bloated two drifts that reservations are pressurizeed in the axial direction; With

Two guide waies that each guide way is moved to the rightabout of the moving direction of the drift of correspondence move uses drive unit;

Constitute, make at the leading section of each guide way and bear two of the blank that exposes between the mould bloat reservations respectively radius vector bloat to the direction outside; This device is characterised in that,

At least one that possesses that two of crooked blank bloats in the reservations bloats the bending apparatus of reservations.

(15) the upsetting processing unit (plant) of being put down in writing according to preceding paragraph 14, wherein,

(16) the upsetting processing unit (plant) of being put down in writing according to preceding paragraph 14 or 15, wherein,

Also possess the support portion, this support portion is configured in and bloats the reservations curved side, will bloat reservations and support to the buckling blocked state with respect to bloating reservations.

(17) according to each upsetting processing unit (plant) of putting down in writing in the preceding paragraph 14～16, wherein,

Bending apparatus be that rotate at the center by making guide way with the turning cylinder perpendicular to the face that comprises the blank axle, thereby bending bloats reservations.

(18) the upsetting processing unit (plant) of being put down in writing according to preceding paragraph 17, wherein,

(19) a kind of upsetting processing method is characterized in that,

Employed upsetting processing unit (plant) possesses: bear mould, it has bearing plane, and is provided with the non-retaining hole that bloats reservations with buckling blocked state insertion maintenance with bar-shaped blank on bearing plane; Guide way, it has inserts the logical inserting hole that keeps with the reservations that bloat of blank with the buckling blocked state; And drift; And, be provided with integratedly at the leading section of guide way that outstanding bloating suppresses to use projection piece on the axial direction at this guide way;

This method comprises following operation:

Bloat the reservations that bloat that reservations have been maintained at the blank in the retaining hole of bearing mould and be configured in the inserting hole of guide way non-;

After described blank bloats the arrangement step of reservations, with drift the reservations that bloat of blank are pressurizeed in the axial direction on one side, guide way is moved on one side to the rightabout of the moving direction of drift, thereby the reservations that bloat that make at the leading section of guide way and bear the blank that exposes between the bearing plane of mould, under the state that the contact site that contacts with described guide way projection piece at least one side in the thickness direction two sides that bloat reservations suppresses to bloat, to radially bloating outside the direction; And

Described bloating the reservations that bloat of blank are bloated on one side, will bloat reservations in its width bending on one side.

(20) the upsetting processing method of being put down in writing according to preceding paragraph 19, wherein,

Bearing the bearing plane of mould, be provided with highlightedly to bloat and suppress to use side wall portion;

Bloat in the operation described, the reservations that bloat with blank, under the state that the contact site that contacts with described guide way projection piece at least one side in the thickness direction two sides that bloat reservations suppresses to bloat, and to the bearing under the state that contact site that mould side wall portion contacts suppresses to bloat of at least one side in the thickness direction two sides that bloat reservations, bloat to the direction outside radially with described.

(21) the upsetting processing method of being put down in writing according to preceding paragraph 20, wherein,

Bear the side wall portion of mould, bear the position of the thickness direction both sides that bloat reservations of the blank on the bearing plane of mould, outstanding respectively the setting at this.

(22) according to each upsetting processing method of putting down in writing in the preceding paragraph 19～21, wherein,

The projection piece of guide way in the position of mutual opposition side leading section, the clamping inserting hole of this guide way, is provided with respectively integratedly.

(23) according to each upsetting processing method of putting down in writing in the preceding paragraph 19～22, wherein,

The bearing plane of bearing mould forms forming face, and this forming face is configured as the regulation shape with at least a portion of at least one side in the width two sides that bloat reservations of blank.

(24) according to each upsetting processing method of putting down in writing in the preceding paragraph 19～23, wherein,

In described bending operation, by making guide way and bearing at least one side in the mould, be that rotate at the center, thereby blank bloated reservations in its width bending with the turning cylinder parallel with the thickness direction that bloats reservations of blank.

(25) the upsetting processing method of being put down in writing according to preceding paragraph 24, wherein,

The front edge portion of the projection piece of guide way forms on the width that bloats reservations of blank to protruding circular-arc of the front of this projection piece.

(26) according to each upsetting processing method of putting down in writing in the preceding paragraph 19～25, wherein,

In described bending operation, supporting under the state of buckling blocked state, will bloat reservations in its width bending by the reservations that bloat of support portion with blank, this support portion is configured in and bloats the reservations curved side with respect to bloating reservations.

(27) a kind of upsetting processed goods is by obtaining as each the upsetting processing method put down in writing in the preceding paragraph 19～26.

(28) a kind of upsetting processing method is characterized in that,

Employed upsetting processing unit (plant), possess: bear mould, be provided with bearing plane at the axial direction both ends respectively, and be provided with retaining hole with being communicated with two bearing plane, this retaining hole is inserted logical the maintenance with the non-reservations that bloat of the axial direction pars intermedia of bar-shaped blank with the buckling blocked state; Two guide waies, it has inserts the logical inserting hole that keeps with the buckling blocked state respectively with the reservations that bloat of the axial direction both sides of blank; With two drifts; And the leading section of at least one guide way in two guide waies is provided with integratedly that outstanding bloating suppresses to use projection piece on the axial direction at this guide way;

This method comprises following operation:

The non-reservations that bloat have been maintained at two of blank in the retaining hole of bearing mould and bloat reservations and be configured in respectively in the inserting hole of guide way;

After described blank bloats the arrangement step of reservations, with drift two of blank being bloated reservations respectively on one side pressurizes in the axial direction, each guide way is moved on one side to the rightabout of the moving direction of the drift of correspondence, thereby make two of the blank that between the leading section of each guide way and the corresponding bearing plane of bearing mould, exposes bloat reservations, under the state that the contact site that contacts with described guide way projection piece at least one side in the thickness direction two sides that bloat reservations suppresses to bloat, respectively simultaneously to radially bloating outside the direction; And

On one side make two of blank bloat reservations in the operation respectively simultaneously to bloat described bloating, on one side two at least one that bloat in the reservations are bloated reservations in its width bending.

(29) the upsetting processing method of being put down in writing according to preceding paragraph 28, wherein,

On at least one bearing plane in bearing two bearing plane of mould, outstanding setting bloats and suppresses to use side wall portion;

Bloat in the operation described, two of blank is bloated reservations, under the state that the contact site that contacts with described guide way projection piece at least one side in the thickness direction two sides that bloat reservations suppresses to bloat, and to the bearing under the state that contact site that mould side wall portion contacts suppresses to bloat of at least one side in the thickness direction two sides that bloat reservations, bloat to the direction outside radially respectively simultaneously with described.

(30) the upsetting processing method of being put down in writing according to preceding paragraph 29, wherein,

Bear the side wall portion of mould, bear the position of the thickness direction both sides that bloat reservations on the bearing plane of mould, blank, outstanding respectively the setting at this.

(31) according to each upsetting processing method of putting down in writing in the preceding paragraph 28～30, wherein,

The projection piece of guide way, the position at the mutual opposition side of the clamping inserting hole of the leading section of this guide way is provided with respectively integratedly.

(32) according to each upsetting processing method of putting down in writing in the preceding paragraph 28～31, wherein,

At least one bearing plane of bearing in two bearing plane of mould forms forming face, and this forming face is configured as the regulation shape with at least a portion of at least one side in the width two sides that bloat reservations of blank.

(33) according to each upsetting processing method of putting down in writing in the preceding paragraph 28～32, wherein,

In described bending operation, be that rotate at the center by making guide way with the turning cylinder parallel, thereby blank bloated reservations in its width bending with the thickness direction that bloats reservations of blank.

(34) the upsetting processing method of being put down in writing according to preceding paragraph 33, wherein,

(35) according to each upsetting processing method of putting down in writing in the preceding paragraph 28～34, wherein,

In described bending operation, support under the state of buckling blocked state will bloating reservations by the support portion, will bloat reservations in its width bending, this support portion is configured in and bloats the reservations curved side with respect to bloating reservations.

(36) a kind of upsetting processed goods is by obtaining as the upsetting processing method that each is put down in writing in the preceding paragraph 28～35.

(37) a kind of upsetting processing unit (plant), possess: bear mould, it has bearing plane, and bearing plane is provided with retaining hole, and this retaining hole bloats reservations with bar-shaped blank non-and inserts with the buckling blocked state and keep;

The drift that reservations are pressurizeed in the axial direction that bloats to the blank in the inserting hole that is configured in guide way; With

Constitute, make at the leading section of guide way and the reservations that bloat of bearing the blank that exposes between the bearing plane of mould bloat to the direction outside radially; This device is characterised in that,

Be provided with integratedly at the leading section of guide way that outstanding bloating suppresses to use projection piece on the axial direction at this guide way;

The projection piece of guide way, blank bloat the bloating of reservations the time, by with the thickness direction two sides that bloat reservations at least one contacts side surfaces, the contact site that bloats reservations is suppressed to bloat;

This upsetting processing unit (plant) also possesses blank is bloated the bending apparatus of reservations in its width bending.

(38) the upsetting processing unit (plant) of being put down in writing according to preceding paragraph 37, wherein,

Bending apparatus, blank bloat the bloating of reservations the time, will bloat reservations in its width bending.

(39) the upsetting processing unit (plant) of being put down in writing according to preceding paragraph 37 or 38, wherein,

Bear the side wall portion of mould, blank bloat the bloating of reservations the time, by with the thickness direction two sides that bloat reservations at least one contacts side surfaces, the contact site that bloats reservations is suppressed to bloat.

(40) the upsetting processing unit (plant) of being put down in writing according to preceding paragraph 39, wherein,

Bear the side wall portion of mould, bear the position of the thickness direction both sides that bloat reservations on the bearing plane of mould, blank, be provided with highlightedly respectively at this.

(41) according to each upsetting processing unit (plant) of putting down in writing in the preceding paragraph 37～40, wherein,

(42) according to each upsetting processing unit (plant) of putting down in writing in the preceding paragraph 37～41, wherein,

(43) according to each upsetting processing unit (plant) of putting down in writing in the preceding paragraph 37～42, wherein,

Bending apparatus by making guide way and bearing at least one side in the mould, is that rotate at the center with the turning cylinder parallel with the thickness direction that bloats reservations of blank, thereby will bloats reservations in its width bending.

(44) the upsetting processing unit (plant) of being put down in writing according to preceding paragraph 43, wherein,

(45) the upsetting processing unit (plant) of being put down in writing according to preceding

paragraph

43 or 44, wherein,

The change mechanism that also possesses the position change that makes turning cylinder.

(46) according to each upsetting processing unit (plant) of putting down in writing in the preceding paragraph 37～45, wherein,

(47) a kind of upsetting processing unit (plant), possess: bear mould, it is provided with bearing plane respectively at the axial direction both ends, and is provided with retaining hole with being communicated with two bearing plane, and this retaining hole is inserted logical the maintenance with the non-reservations that bloat of the axial direction pars intermedia of bar-shaped blank with the buckling blocked state;

Blank in the inserting hole that is configured in each guide way respectively bloated two drifts that reservations are pressurizeed in the axial direction; With

Constitute, make two of the blank that between the leading section of each guide way and the corresponding bearing plane of bearing mould, exposes bloat reservations and bloat to the direction outside radially respectively simultaneously; This device is characterised in that,

The leading section of at least one guide way in two guide waies is provided with integratedly that outstanding bloating suppresses to use projection piece on the axial direction at this guide way;

This upsetting processing unit (plant) also has at least one that two of blank is bloated in the reservations and bloats the bending apparatus of reservations in its width bending.

(48) the upsetting processing unit (plant) of being put down in writing according to preceding paragraph 47, wherein,

(49) the upsetting processing unit (plant) of being put down in writing according to preceding paragraph 47 or 48, wherein,

On at least one bearing plane in bearing two bearing plane of mould, be provided with highlightedly to bloat and suppress to use side wall portion;

(50) the upsetting processing unit (plant) of being put down in writing according to preceding paragraph 49, wherein,

(51) according to each upsetting processing unit (plant) of putting down in writing in the preceding paragraph 47～50, wherein,

(52) according to each upsetting processing unit (plant) of putting down in writing in the preceding paragraph 47～51, wherein,

(53) according to each upsetting processing unit (plant) of putting down in writing in the preceding paragraph 47～52, wherein,

Bending apparatus is that rotate at the center by making guide way with the turning cylinder parallel with the thickness direction that bloats reservations of blank, thereby will bloats reservations in its width bending.

(54) the upsetting processing unit (plant) of being put down in writing according to preceding paragraph 53, wherein,

(55) the upsetting processing unit (plant) of being put down in writing according to preceding

paragraph

53 or 54, wherein,

(56) according to each upsetting processing unit (plant) of putting down in writing in the preceding paragraph 47～55, wherein,

The present invention plays following effect.

In the invention of (1), with drift the reservations that bloat of bar-shaped blank are pressurizeed in the axial direction on one side, guide way is moved on one side to the rightabout of the moving direction of drift, thereby the reservations that bloat that make at the leading section of guide way and bear the blank that exposes between the mould bloat to the direction outside radially, thus, can prevent the buckling of blank, can also the reservations that bloat of blank be bloated with low load.And, while because make the reservations that bloat of blank bloat bending and bloat reservations, so can bloat reservations with low load bending.That is, in the present invention, not only can the reservations that bloat of blank be bloated, and can bloat reservations with low load bending with low load.Therefore, can make the upsetting processed goods that bellying is a curved shape reliably with the low load of trying one's best.

In the invention of (2), because bending bloats reservations under the state that is bloated reservations by the support portion with the support of buckling blocked state, so can stop the buckling that bloats reservations reliably.

In the invention of (3), bending bloats reservations reliably.

In the invention of (4), can improve surface texture good, bellying is the upsetting processed goods of curved shape.

In the invention of (5), the same with the invention of (1), can prevent the buckling of blank, also can the reservations that respectively bloat of blank be bloated with low load.And then, bloat respectively simultaneously because can make two of blank bloat reservations, so can be manufactured on the upsetting processed goods that the axial direction both sides form bellying respectively efficiently.And, Yi Bian because making two of blank bloat reservations bloats respectively simultaneously, Yi Bian crooked this two at least one that bloats in the reservations bloats reservations, so can be with the reservations that bloat of the crooked regulation of low load.That is, in the present invention, not only can make two of blank bloat reservations with low load and bloat, and can be with the reservations that bloat of the crooked regulation of low load.Therefore, can make the upsetting processed goods that bellying is a curved shape reliably with the low load of trying one's best.

In the invention of (6), can stop the buckling that bloats reservations reliably.

In the invention of (7), bending bloats reservations reliably.

In the invention of (8), can improve surface texture good, bellying is the upsetting processed goods of curved shape.

In the invention of (9)～(12), can provide the upsetting processing unit (plant) of the related upsetting processing method of any one invention that is applicable in above-mentioned (1)～(4).

In the invention of (13), can suitably the position of turning cylinder be changed according to the curved shape of desired bellying.

In the invention of (14)～(17), can provide the upsetting processing unit (plant) of the related upsetting processing method of any one invention that is applicable in above-mentioned (5)～(8).

In the invention of (18), can suitably the position of turning cylinder be changed according to the curved shape of desired bellying.

Invention according to (19), in bloating operation, the reservations that bloat with blank, under the state that the contact site that contacts with described guide way projection piece of at least one side in the thickness direction two sides that this bloated reservations suppresses to bloat, to radially bloating outside the direction, so at least one side that can form in the thickness direction two sides has been suppressed the bellying that bloats.

And then, because in bending operation,,, can also make with low load to bloat reservations and bloat so can bloat reservations with low load bending while make the reservations that bloat of blank bloat this is bloated reservations in its width bending.

Therefore, in this invention, can produce as far as possible for example following preform with low load near shape of product, that is, this preform is used for making at least one side with thickness direction two sides and has been suppressed the bellying that bloats and this bellying self product with respect to the axial direction bending.

Invention according to (20), in bloating operation, the reservations that bloat with blank, under the state that the contact site that contacts with the guide way projection piece of at least one side in the thickness direction two sides that this bloated reservations suppresses to bloat, and at least one side in the thickness direction two sides that bloat reservations with bear the state that contact site that mould side wall portion contacts suppresses to bloat under, to radially bloating outside the direction, so can bloat inhibition at least one side in the thickness direction both sides that bloat reservations of blank reliably.

According to the invention of (21), can be respectively the thickness direction two sides that bloat reservations of blank be bloated inhibition.

According to the invention of (22), can be respectively reliably the thickness direction two sides that bloat reservations of blank be bloated inhibition.

According to the invention of (23), can utilize the bearing plane of bearing mould, at least a portion with at least one side in the width two sides that bloat reservations of blank is configured as shape of product or the shape approaching with it.

According to the invention of (24), can be with blank bloat reservations reliably in its width bending.

According to the invention of (25), in bending operation, can prevent that the front edge portion of the projection piece of guide way from interfering bearing mould.

According to the invention of (26), can in bending operation, stop the buckling that bloats reservations of blank reliably.

According to the invention of (27), the bellying that can provide at least one side that has in the thickness direction two sides to be suppressed to bloat and this bellying self are with respect to the upsetting processed goods of axial direction bending.

According to the invention of (28), play and above-mentioned (19) identical effect.And then, because in bloating operation, make two of blank bloat reservations simultaneously respectively to radially bloating outside the direction, so can be manufactured on the upsetting processed goods that the axial direction both sides form bellying respectively efficiently.

According to the invention of (29)～(35), can play the same effect of invention respectively with above-mentioned (20)～(26).

According to the invention of (36), can be provided at the axial direction both sides form respectively at least one side in its thickness direction two sides of at least one bellying in bellying and two bellyings be suppressed bloat and this bellying self with respect to the upsetting processed goods of axial direction bending.

According to the invention of (37)～(44), can provide the upsetting processing unit (plant) of the related upsetting processing method of any one invention that is applicable in above-mentioned (19)～(25).

According to the invention of (45), can suitably the position of turning cylinder be changed according to the curved shape of desired bellying.

According to the invention of (46), can provide the upsetting processing unit (plant) of the related upsetting processing method of the invention that is applicable to above-mentioned (26).

According to the invention of (47)～(54), can provide the upsetting processing unit (plant) of the related upsetting processing method of any one invention that is applicable in above-mentioned (28)～(34).

According to the invention of (55), can suitably the position of turning cylinder be changed according to the curved shape of desired bellying.

According to the invention of (56), can provide the upsetting processing unit (plant) of the related upsetting processing method of the invention that is applicable to above-mentioned (35).

Description of drawings

Fig. 1 is that the part of the related upsetting processing unit (plant) of first embodiment of the present invention is dissectd stereogram.

Fig. 2 is the cutaway view that reservations bloat the upsetting processing unit (plant) under the preceding state that bloats of blank.

Fig. 3 is the cutaway view that reservations bloat the upsetting processing unit (plant) under midway the state that bloats of blank.

Fig. 4 is the cutaway view of the upsetting processing unit (plant) under the state after reservations bloat of bloating of blank.

Fig. 5 be to use this upsetting processing unit (plant) to carry out upsetting processing and the stereogram of upsetting processed goods.

Fig. 6 is the cutaway view of upsetting processing unit (plant) under the state after reservations bloat of bloating of blank, that second embodiment of the present invention is related.

Fig. 7 is that the part of the related upsetting processing unit (plant) of the 3rd embodiment of the present invention is dissectd stereogram.

Fig. 8 is the stereogram of the end of bearing mould of this upsetting processing unit (plant).

Fig. 9 is the stereogram of the guide way of this upsetting processing unit (plant).

Figure 10 is the cutaway view that reservations bloat the upsetting processing unit (plant) under the preceding state that bloats of blank.

Figure 11 is the cutaway view that reservations bloat the upsetting processing unit (plant) under midway the state that bloats of blank.

Figure 12 is the cutaway view of the upsetting processing unit (plant) under the state after reservations bloat of bloating of blank.

Figure 13 be to use this upsetting processing unit (plant) to carry out upsetting processing and the stereogram of upsetting processed goods.

Figure 14 is the cutaway view of the upsetting processing unit (plant) under the change turning cylinder state.

Symbol description

1: blank 2: bloat reservations

3: axial direction pars intermedia (the non-reservations that bloat) 5: upsetting processed goods

6: bellying 7: axial region

10A, 10B: upsetting processing unit (plant) 11: bear mould

12: retaining hole (blank installing hole) 15: support portion

20: guide way 21: inserting hole 23: the guide way support

25: guide way moves with drive unit 30: drift

31: drift drive unit 40: bending apparatus

41: guide way rotating mechanism 42: guide rail

43: workbench 44: Working table driving device

50: change mechanism 51: the guide way support moves uses guide rail

52: guide way carriage drive device 53: bear mould and move and use guide rail

54: bear die drive unit F: freely bloat the space

P: turning cylinder 101: blank 102: bloat reservations

103: the non-reservations (axial direction pars intermedia) that bloat

105: upsetting processed goods (preform) 106: bellying

107: axial region 110: the upsetting processing unit (plant)

111: bear mould 112: retaining hole

113: bearing plane 114: bloat and suppress to use side wall portion

115: support portion 119: divisional plane

120: guide way 121: inserting hole

122: bloat and suppress to use projection piece 122b: front edge portion

125: guide way moves with drive unit 130: drift

131: drift drive unit 140: bending apparatus

141: guide way rotating mechanism 142: circular-arc guide rail

143: workbench 144: Working table driving device

150: change mechanism 151: the guide way support moves uses guide rail

152: guide way carriage drive device 153: bear mould and move and use guide rail

154: bear die drive unit E: bloat space P: turning cylinder

The specific embodiment

Next, with reference to accompanying drawing several embodiments of the present invention is described.

Fig. 1～Fig. 5 is the figure that is used to illustrate first embodiment of the present invention.

In Fig. 1,10A is the related upsetting processing unit (plant) of first embodiment.This upsetting processing unit (plant) 10A, the words of detailed description are free upsetting processing unit (plant)s.In addition, the 1st, bar-shaped blank.

In Fig. 5, the 5th, the upsetting processed goods that utilizes upsetting processing unit (plant) 10A to be processed.This upsetting processed goods 5 forms respectively to radially spreading all over the bellying 6 (wide diameter portion) that whole girth bloats (hole enlargement) outside the direction at the both ends of straight axial region 7.Each bellying 6 is crooked in the axial direction.Describe in detail, bellying 6 self bending, bellying 6 bloats on Zhou Fangxiang unevenly in addition.Describe in detail more, the amount of bloating of the opposition side of the curved side of bellying 6 is compared greatly with the amount of bloating of the curved side of bellying 6, and in other words, bellying 6 is compared the curved side of this bellying 6, bloats greatlyyer at its opposition side.This upsetting processed goods 5 is for example as making the preform of vehicles such as automobile, rail vehicle with support.In addition, each bellying 6 of this upsetting processed goods 5 is the processed positions of linking part (for example, lining installing department, fork, ball-and-socket joint portion) that link as the parts with other in the operation of back.

As Fig. 1 and shown in Figure 2, blank 1, with its axial direction both sides as bloating

reservations

2,2, with axial direction pars intermedia 3 as the non-reservations that bloat.The axial direction pars intermedia 3 of blank 1 becomes the axial region 7 of upsetting processed goods 5 after upsetting processing.

This blank 1 is that to be set at the straight filled circles of specific length bar-shaped, is made of metal material, and the words of detailed description are made of the aluminum or aluminum alloy material.The section shape of blank 1 is a toroidal, and the diameter of blank 1 is certain on its axial direction.

In addition in the present invention, the material of blank 1 is not limited to aluminum or aluminum alloy, in addition, also can be metals such as brass, copper (alloy that comprises it), stainless steel, also can be plastics, but especially preferred aluminum or aluminum alloy.In addition, the section shape of blank 1 is not to be defined in toroidal, in addition, can be polygons such as quadrangle, hexagon yet.In addition, blank 1 for example also can be made of extrusion, also can be to utilize the continuous casting rolled parts of Pu Luopoze aluminum steel continuous casting rolling manufacturing to constitute, and also can utilize other method manufacturing.

The diameter of blank 1 for example is 10～20mm (being specified as 16mm).In addition, in upsetting processed goods 5, for example the maximum gauge of each bellying 6 is 50～70mm (being specified as 60mm), and the length of each bellying 6 is 65～80mm (being specified as 72mm), and the length of axial region 7 is 150～250mm (being specified as 220mm).The size at each position of the diameter of blank 1 and upsetting processed goods 5 is not limited to above-mentioned size but in the present invention.For example, can be according to the making of vehicle with the desired product of support, connecting rod, piston etc., the size at each position of the diameter of blank 1 and upsetting processed goods 5 is set, to realize purpose of the present invention.

Upsetting processing unit (plant) 10A possesses: bear 20,20,2 guide waies of 11,2 guide waies of mould and move with 31,31 and two bending

apparatus

40,40 of 30,30,2 drift drive units of 25,25,2 drifts of drive unit.

Bear mould 11, that bears blank 1 respectively bloats the bellying 6 that reservations 2 bloat, with these axial direction both ends of bearing mould 11 respectively as bearing

plane

11a, 11a (also claiming the portion of bearing).Bear on the mould 11 at this, connect and bear the retaining hole 12 (also claiming installing hole) that mould 11 ground are provided with connection two bearing plane 11a, 11a.Therefore, bearing on two bearing plane 11a, the 11a of mould 11, be respectively equipped with the open-ended of retaining hole 12.Retaining hole 12 is extended on the axial direction that bears mould 11 as the crow flies.This retaining hole 12, moving blocked state as the non-axial direction pars intermedia 3 that bloats reservations with buckling blocked state and axial direction and insert logical maintenance the blank 1.Therefore, the axial direction pars intermedia 3 of blank 1 moves blocked state with axial direction and the buckling blocked state embeds in this retaining hole 12.Thus, the axial direction pars intermedia 3 of blank 1 is installed in and bears in the mould 11.Also have, this bears mould 11, is divided into 2 by the divisional plane of vertical profile retaining hole 12.

2 guide

way

20,20 identical each other formations.Each guide way 20 has inserting hole 21, and this inserting hole bloats reservations 2 with what the buckling blocked state was inserted the logical correspondence that keeps blank 1.This inserting hole 21 connects the axial direction of this guide way 20 and is provided with on guide way 20.The outlet of inserting hole 21 is located at the leading section of guide way 20.The section shape of inserting hole 21 forms identically with the section shape that bloats reservations 2 of blank 1, and in this inserting hole 21, with proper state and also insert logical blank 1 in the axial direction slidably bloat reservations 2.And, by the logical blank 1 of inserting hole 21 interpolations, inserting hole 21 in configuration blank 1 bloat reservations 2, thereby bloat reservations 2 with buckling blocked state maintenance blank 1.

In addition, each guide way 20 is taken in slidably in the axial direction and is remained in the guide way support 23.In addition, the 24th, liner between guide way 20 and guide way support 23, that be used to reduce force of sliding friction between the two.

The formation that 2 drifts 30,30 are identical each other.Each drift 30 is to be used for the reservations 2 that bloat of the correspondence of blank 1 are pushed pressurization on its axial direction.2

guide waies

20,20, the mutual subtend ground configuration in the axial direction both sides of blank 1.

The formation that 2

drift drive units

31,31 are identical each other.Each drift drive unit 31 is to be used to make drift 30 to move on the axial direction of blank 1.This drift drive unit 31 is connected with each drift 30.So, by making 31 work of drift drive unit, make drift 30 move, pressurize on its axial direction with the reservations 2 that bloat of 30 pairs of blanks 1 of this drift.As the drive source of drift drive unit 31, use for example fluid pressure cylinder (oil hydraulic cylinder, pneumatic cylinder etc.).

2 guide waies move with the identical each other formation of drive unit 25,25.Each guide way moves with drive unit 25, is that guide way 20 is moved to the rightabout of the moving direction (that is, utilizing 30 pairs of blanks of drift to bloat the compression aspect of reservations 2) of the drift 30 of correspondence.As the drive source of this drive unit 25, use for example fluid pressure cylinder (oil hydraulic cylinder, pneumatic cylinder etc.).By utilizing this guide way to move guide way 20 is moved with drive unit 25, thereby at the leading section of guide way 20 and bear to form between the mould 11 (words of detailed description are to bear the bearing plane 11a of mould 11) and freely bloat space F.This freely bloats space F, is the space that reservations 2 can freely bloat to the outside of direction radially that bloats of blank 1.The reservations 2 that bloat of blank 1 bloat among the F of space because freely bloat at this, so this upsetting processing method is listed the upsetting processing method of not using the closed mould with enclosed cavity in, is the category of free upsetting processing method.

The formation that 2

bending apparatus

40,40 are identical each other.Each bending apparatus 40 is to be used for blank 1 respectively bloated reservations 2 bendings.In the present embodiment, bending apparatus 40 (is called this axle " turning cylinder P " by making guide way 20 with the axle perpendicular to the face that comprises the blank axle.Down with) be the center rotation, will bloat reservations 2 and be bent to circular-arc etc.

In the present embodiment, blank 1 horizontal arrangement, so also horizontal arrangement of blank axle.In addition, the face that comprises the blank axle is a horizontal plane, so turning cylinder P is towards above-below direction.

Each bending apparatus 40 possesses that to make guide way 20 be the guide way rotating mechanism 41 that middle heart is rotated with turning cylinder P.

Each guide way rotating mechanism 41 has: with turning cylinder P be the center circle arcuation guide rail 42 that extends configuration, the workbench 43 that moves along this guide rail 42 and the Working table driving device 44 that this workbench 43 is moved in the mode along guide rail 42.For example fluid pressure cylinder (oil hydraulic cylinder, pneumatic cylinder etc.) as the drive source of Working table driving device 44 is connected with workbench 43.On workbench 43, move with

guide rail

51,51 by guide way support described later and to be provided with guide way support 23.In this guide way support 23, take in as mentioned above and maintain guide way 21.

So, in this guide way rotating mechanism 41, work by making Working table driving device 44, thereby guide way 20 is moved in the mode along circular-arc guide rail 42 on each workbench 43, thus, guide way 20 is that rotate at the center with turning cylinder P.So, so, because guide way 20 rotations, thereby the reservations 2 that bloat of blank 1 are being bloated bending midway.

In addition in the present invention, guide way rotating mechanism 41 is not to be defined in above-mentioned mechanism, in addition can also be the mechanism that for example utilizes gear mechanism.

And then this upsetting processing unit (plant) 10A has two

change mechanisms

50,50 of the position change of the turning cylinder P that makes each guide way 20.

Two identical each other formations of change mechanism 50,50.Each changes mechanism 50, has: the described guide way support that is laid on the workbench 43 moves with

guide rail

51,51; The guide way carriage drive device 52 that guide way support 23 is moved in the mode along this guide rail 51; Bearing mould moves with

guide rail

53,53; Bear mould 11 and bear die

drive unit

54,54 with making with what the mode along this

guide rail

53,53 moved.The guide way support moves with guide rail 51 and bears mould and move with guide rail 53, respectively to be provided with at the upwardly extending state in the side vertical with the blank axle.As the drive source of guide way carriage drive device 52 for example fluid pressure cylinder be connected with guide way support 23.As the drive source that bears die drive unit 54 for example fluid pressure cylinder with bear mould 11 and be connected.In addition, this bears die drive unit 54, also as opening and closing the drive unit that bears mould 11.

So, in this change mechanism 50, by making 52 work of guide way carriage drive device, thereby make guide way 20 in each guide way support 23, move relative to workbench 43 along guide rail 51, and then, bear die drive unit 54 work by making, bear mould 11 and move along guide rail 53 thereby make.So, on same direction, move mutually with bearing mould 11 by making guide way 20, thus the position of change turning cylinder P.

Then, below the upsetting processing method of using above-mentioned upsetting processing unit (plant) 10A is described.

At first, as Fig. 1 and shown in Figure 2, embedding as the non-axial direction pars intermedia 3 that bloats reservations of blank 1 born in the retaining hole 12 of mould 11.Thus, the axial direction pars intermedia 3 of blank 1 retrains in retaining hole 12 and is held in the buckling blocked state and axial direction moves blocked state, and the axial direction pars intermedia 3 of blank 1 is installed on and bears in the mould 11 like this.

Then, two of blank 1 is

bloated reservations

2,2 and insert the inserting hole 21 interior (blank bloats the arrangement step of reservations) that wildcard places each self-corresponding guide way 20.Thus, the reservations 2 that respectively bloat with blank 1 remain in the inserting hole 21 with the buckling blocked state.

Then, with two of each self-corresponding drift 30 pair blanks 1

bloat reservations

2,2 in the axial direction simultaneously pressurization on one side, utilize guide way to move on one side each guide way 20 is moved simultaneously to the rightabout of the moving direction of the drift 30 of correspondence with drive unit 25.Thus, make what freely bloat blank 1 that space F exposes two to bloat

reservations

2,2 and bloat (bloating operation) to the direction outside radially freely bloating space F simultaneously respectively, this freely bloats space F and is formed at the leading section of each guide way 20 and bears between the mould 11 (words of detailed description are to bear the bearing plane 11a of mould 11).

Then, as shown in Figure 3, Yi Bian make two to bloat

reservations

2,2 and bloat respectively simultaneously like this, Yi Bian utilize crooked respectively simultaneously this of bending

apparatus

40,40 two to bloat reservations 2,2 (bending operation).

The bending method that uses this bending apparatus 40 is described, the contents are as follows.

That is, will bear the fixed-site of mould 11 in advance, bloat respectively simultaneously, Yi Bian the Working

table driving device

44,44 of two bending

apparatus

40,40 is worked simultaneously Yi Bian make two of blank 1 bloat reservations 2,2.So, each guide way 20 under the part that bloats reservations 2 of blank 1 remains in state in its inserting hole 21, moves along guide rail 42 on each workbench 43, and each guide way 20 is that rotate at the center with turning cylinder P.So, be accompanied by the rotation of guide way 20, while make the reservations 2 that bloat of blank 1 bloat and this is bloated reservations 2 be bent into circular-arc etc.

In addition, the translational speed of workbench 43, be the speed that bloats reservations 2 of crooked blank 1, can suitably set according to the curved shape of bellying 6.

Then, as shown in Figure 4, respectively bloat reservations 2 when bloating to the regulation shape what make blank 1, stop to move of drift 30 and moving of guide way 20, stop table 43 moves simultaneously.

Then, by blank 1 is taken out, thereby obtain desired upsetting processed goods 5 from bear mould 11.

By with the upsetting processed goods 5 of such gained as preform, its bellying 6 is processed into the regulation shape in subsequent handling, thereby makes desired vehicle support.

According to this upsetting processing method, when manufacturing is used to make the preform of product of bellying bending, can make more preform near shape of product.

So, upsetting processing method according to above-mentioned first embodiment, by in the axial direction the reservations 2 that bloat of blank 1 being pressurizeed with drift 30 on one side, guide way 20 is moved on the rightabout of the moving direction of drift 30, thereby the reservations 2 that bloat that make at the leading section of guide way 20 and bear the blank 1 that exposes between the mould 11 bloat to the direction outside radially, therefore can prevent to add in upsetting the buckling of the blank 1 that takes place man-hour.And then, the reservations 2 that respectively bloat of blank 1 are bloated.Promptly, by in the axial direction the reservations 2 that bloat of blank 1 being pressurizeed on one side, this is bloated reservations 2 bendings on one side, thereby, therefore can make to bloat reservations 2 and bloat with low load based on making this bloat reservations 2 to the radially protruding distortion of direction outside drum with the same principle of the protruding shaping of drum processing.And, because being

bloated reservations

2,2, two of blank 1 bloats respectively simultaneously, so can be manufactured on the upsetting processed goods 5 that the axial direction both sides form bellying 6 respectively efficiently.

And, because the reservations 2 that respectively bloat of blank 1 are bloated, and meanwhile this is bloated reservations 2 bendings, so can will respectively bloat reservations 2 bendings with low load.

That is, in this upsetting processing method, can the reservations 2 that respectively bloat of blank 1 be bloated with low load, and, can also this be bloated reservations 2 bendings with low load.And, can prevent the inboard facial fold that produces in the curved side of bellying 6.Therefore, can and not produce fold ground with alap load and make the upsetting processed goods 5 that bellying 6 is a curved shape reliably.

Certainly, in this upsetting processing method, do not use closed mould, so can process with lower cost with closed cavity.

And, be center rotation by making guide way 20 with axle (being turning cylinder P), thereby can be reliably blank 1 be bloated reservations 2 bendings perpendicular to the face that comprises the blank axle.

In above-mentioned upsetting processing unit (plant) 10A, when the position of the turning cylinder P that changes guide way 20, make guide way carriage drive device 52 work of change mechanism 50, guide way 20 is moved relative to workbench 43 along guide rail 51 in each guide way support 23.And then, bear die drive unit 54 work by making, bear mould 11 and move thereby make along guide rail 53.So make guide way 20 and bear mould 11 and on same direction, move mutually, thus the position that can change turning cylinder P.

Therefore, utilize this upsetting processing unit (plant) 10A, can suitably change the position of turning cylinder P according to the curved shape of desired bellying 6.

Fig. 6 is the figure that is used to illustrate second embodiment of the present invention.

The related upsetting processing unit (plant) 10B of this second embodiment possesses with the buckling blocked state blank 1 is respectively bloated two

support portions

15,15 that reservations 2 support.The formation that two

support portions

15,15 are same each other.Each support portion 15 is configured the side that this bloats reservations 2 bendings with respect to the reservations 2 that bloat of blank 1.In the present embodiment, each support portion 15 is arranged on integratedly and bears on the mould 11.In addition in the present invention, support portion 15 can also with bear mould 11 split settings, promptly can also be support component.

Other of this upsetting processing unit (plant) 10B constitutes, and be identical with the upsetting processing unit (plant) 10A of above-mentioned first embodiment.

In the upsetting processing method of using this upsetting processing unit (plant) 10B, the reservations 2 that respectively bloat of blank 1 are bloated on one side, will bloat reservations 2 bendings Yi Bian bloat reservations 2 under by the state of support portion 15 with the support of buckling blocked state at this.So, can prevent to bloat the buckling of reservations 2 reliably.

More than, several embodiments of the present invention is illustrated, but the present invention is not limited to shown in the above-mentioned embodiment, can carry out various design alterations.

For example, in the above-described embodiment, two of blank 1 is

bloated reservations

2,2 bending simultaneously, but in the present invention, in addition any one that can also only two of blank 1 be bloated in the

reservations

2,2 bloats reservations 2 bendings.

In addition, in the above-described embodiment, the reservations 2 that bloat of blank 1 are two places, but in the present invention, in addition a place that bloats axial direction one end that reservations 2 can also only be blanks 1 or axial direction pars intermedia etc. of blank 1.In addition, in the present invention, bloat reservations 2 when only being a place at blank 1, when this being bloated reservations 2 bendings, both can make guide way 20 is that rotate at the center with turning cylinder P, also can make and bear mould 11 is that rotate at the center with turning cylinder P, and both are the mutual backwards rotation in center with turning cylinder P with bearing mould 11 can also to make guide way 20.

In addition, in the present invention, in bloating operation, can remain in the part that bloats reservations 2 of blank 1 under the state in the inserting hole 21 of guide way 20 and finish to bloat, can also all extrude the back in the inserting hole 21 of guide way 20 and finish to bloat at once will bloating reservations 2.

In addition, in the present invention, both can blank 1 heating can not heated yet man-hour adding.That is, in the present invention, for the processing temperature condition of blank 1 without any restriction.

Certainly, upsetting processing unit (plant) involved in the present invention and upsetting processing method, be not limited to make and be used to make the preform of vehicle with support, can be used to make various industrial products preforms, for example can be used to make axle with preform, framework with preform, connecting rod piston preform with preform, compressor.

Fig. 7～Figure 14 is the figure that is used to illustrate the 3rd embodiment of the present invention.The 3rd embodiment is in view of above-mentioned " background technology " prior art background of being put down in writing of part and following technical background are made.

In existing upsetting processing method, in general be that the reservations that bloat with blank spread all over the even geocentric vertical direction of its whole girth outside and bloat.

So existing upsetting processing method is mainly used in the employed preform of manufacturing of process industry product.But the automobile support of for example diplopore shape in the industrial products is formed with the linking part that links with other parts in the end of its axial region, and this linking part only bloats and bloats hardly on thickness direction in the width both sides.When utilizing the preform of the such product of above-mentioned upsetting processing method manufacturing, there is following difficult point.

Promptly, in above-mentioned upsetting processing method, because make the reservations that bloat of blank spread all over the even geocentric vertical direction of the whole girth outside and bloat as mentioned above, so after upsetting processing, become the shape of linking part, the bellying extruding need be flat ground plastic deformation in order to make bellying, perhaps bellying is cut etc., bellying is implemented processing (being secondary operations) once more, consequently, have the increase of worker ordinal number, the low such difficult point of stock utilization.

In addition, in upsetting processing method that utilize to use shaping dies, when promptly retraining the upsetting processing method and make preform with closed cavity, with drift to the blank in the closed cavity that is configured in shaping dies bloat reservations when pressurizeing, must use higher load.Therefore, need to produce drift drive unit, its result, a difficult problem that exists the purchase cost of upsetting processing unit (plant) to improve than top load.

In addition, in general, the bellying in making various products preferably uses the blank that is pre-formed to this shape as this preform, with the reduction of seeking the worker ordinal number, the raising of stock utilization during with respect to the product of axial direction bending.

But in existing upsetting processing method, the formation bellying is very difficult with respect to the preform of axial direction bending.On the other hand, proposed after forming bellying, this bellying to be implemented the method for bending machining, but this motion method exists for bellying is a crooked and difficult problem load that must be bigger.And then, in this motion method, there is following difficult point, promptly, though want the bellying bending, bellying self does not but have bending and neck flexion between bellying and the axial region, or produces fold and to produce surface texture bad at the curved side of bellying inboard facial.Therefore, after bellying forms, be extremely difficult with the such processing of this bellying bending.

The 3rd embodiment of the present invention, in view of above-mentioned " background technology " existing technical background of being put down in writing of part and above-mentioned technical background are made, its purpose is, except above-mentioned purpose, a kind of upsetting processing method also is provided, by the resulting upsetting processed goods of this method, and employed upsetting processing unit (plant) in the described method, this upsetting processing method can make the reservations that bloat of blank bloat to the direction outside radially under the state that the assigned position of its all direction is suppressed to bloat, and can to make bellying with low load be the upsetting processed goods of the shape of direction bending to axial.

Other purpose of the present invention and advantage can be clear and definite according to following preferred implementation.

In Fig. 7, the 110th, the upsetting processing unit (plant) that the 3rd embodiment of the present invention is related.The 101st, bar-shaped blank.

In Fig. 7, the 105th, the upsetting processed goods that utilizes upsetting processing unit (plant) 110 to be processed.This upsetting processed goods 105 forms respectively at the both ends of bar-shaped axial region 107 to the bellying 106 that bloats of ground such as or not direction thickness as outside radially.Axial region 107 is straight.The shape that two bellyings 106,106 are same each other.The state that bloats that each bellying 106 is described in detail in detail is as follows: each bellying 106, and the width two sides bloat respectively roughly circular-arcly, and the thickness direction two sides all do not bloat or almost do not bloat on the other hand.Therefore, each bellying 106 forms the discoideus of how many distortion, and the diameter of the thickness of each bellying 106 and axial region 107 is roughly the same.And, bellying 106 on width with respect to the axial direction bending.Specifically, the amount of bloating of the opposition side of the curved side on the width of bellying 106 is bigger than the amount of bloating of the curved side on the width of bellying 106.That is, bellying 106 is compared the curved side of its width, bloats greatlyyer at opposition side.Like this, the state of bloating of bellying 106 becomes the state that thickness does not wait on Zhou Fangxiang.

This upsetting processed goods 105 is as the preform of making prescribed product.Therefore, in the present invention, upsetting processing unit (plant) 110 can use as the manufacturing installation of preform, and in addition, the upsetting processing method can be used as the manufacture method of preform,

In the present embodiment, this upsetting processed goods 105 is as being used to make the preform use of the vehicle of automobile, rail vehicle etc. with support.And each bellying 106 of this upsetting processed goods 105 is the positions that process in subsequent handling as the linking part (for example lining installation portion) that links with other parts.As the processing in the subsequent handling, can enumerate and for example on bellying 106, offer the perforate operation of lining installation with retaining hole.

Blank 101, as Fig. 7 and shown in Figure 10, with its axial direction pars intermedia as the non-reservations 103 that bloat, with the axial direction both sides respectively as bloating reservations 102.The non-reservations 103 that bloat of blank 101, after upsetting processing, corresponding with the axial region 107 of upsetting processed goods 105.

This blank 101 is that to be set at the straight filled circles of specific length bar-shaped, is made of metal material, and detailed description is made of the aluminum or aluminum alloy material.The section shape of blank 101 is a toroidal, and the diameter of blank 101 is certain on its axial direction.

In addition in the present invention, the material of blank 101 is not limited to aluminum or aluminum alloy, can also be the metal of brass, copper (comprising its alloy), stainless steel etc. for example, can also be plastics, but especially preferred aluminum or aluminum alloy.In addition, the section shape of blank 101 is not limited to toroidal, in addition for example can also be the polygon of quadrangle, hexagon etc.In addition, blank 101 can be made of extrusion, also can be to utilize the continuous casting rolled parts of Pu Luopoze aluminum steel continuous casting rolling manufacturing to constitute, and also can be to utilize other method to make.

The diameter of blank 101 for example is 10～30mm (being specified as 16mm etc.).In addition, in upsetting processed goods 105, for example the diameter of each bellying 106 is 30～100mm (being specified as 50mm etc.), the thickness of bellying 106 is that diameter to the diameter of blank 101 of blank 101 adds 30mm (being specified as 26mm etc.), and the length of axial region 107 is 20～300mm (being specified as 160mm).The size at each position of the diameter of blank 101 and upsetting processed goods 105 is not limited to above-mentioned size but in the present invention.For example, can be according to the making of vehicle with the desired product of support etc., the size at each position of the diameter of blank 101 and upsetting processed goods 105 is set, to realize purpose of the present invention.

Upsetting processing unit (plant) 110 possesses: bear 120,120,2 guide waies of 111,2 guide waies of mould and move with 131,131 and 2 bending apparatus 140,140 of 130,130,2 drift drive units of 125,125,2 drifts of drive unit.

Bear mould 111, bear the material that this bloats reservations 102 when reservations 102 bloat, form bearing plane 113 respectively at these axial direction both ends of bearing mould 111 respectively bloating of blank 101.Bear on the mould 111 at this, be communicated with the retaining hole 112 that two bearing plane, 113,113 ground are provided with straight extension on its axial direction.Therefore, as shown in Figure 8,, be respectively equipped with the open-ended of retaining hole 112 bearing on two bearing plane 113,113 of mould 111.

Bear the retaining hole 112 of mould 111, blank 101 non-bloated reservations 103 move blocked state with buckling blocked state and axial direction and insert logical the maintenance.This retaining hole 112 can also be used as being used for that blank 101 is installed on the blank installing hole that bears mould 111.The section shape of retaining hole 112 is the non-corresponding shape of section shape that bloats reservations 103 with blank 101, i.e. toroidal.In addition, the diameter of this retaining hole 112 is set to the non-diameter that bloats reservations 103 of blank 101 and compares slightly little size.Bear mould 111, be divided into two parts by the divisional plane 119 of this retaining hole 112 of vertical profile.So, blank 101 non-bloats the retaining hole 112 that reservations 103 embed two cutting plates that bear mould 111 and cuts apart between the slot part, then, two cutting plates are made up mutually make it integrated, what are closely inserted wildcards and place in the retaining hole 112 thereby blank 101 non-bloated reservations 103.Thus, the non-reservations 103 that bloat of blank 101 move the restrained maintenance of blocked state with buckling blocked state and axial direction in retaining hole 112.

Bear the same each other formation of two bearing plane 113,113 of mould 111.As shown in Figure 8, bear each bearing plane 113 of mould 111, comprise concave surface, this concave recess one-tenth section on the width that bloats reservations 102 of blank 101 is circular-arc.Thus, each bearing plane 113 forms such forming face, that is, this forming face is formed separately the part of the width two sides that bloat reservations 102 of blank 101 and is regulation shape (promptly circular-arc).

And then, bear on each bearing plane 113 of mould 111, for the mutual opposition side of clamping retaining hole 112 and be the position of the thickness direction both sides that bloat reservations 102 of blank 101, be respectively equipped with to bloat and suppress with side wall portion 114, this side wall portion is outstanding to the axial direction that bears mould 111 (in other words being the axial direction of blank 101), with bear mould 111 and be made as one.This two side portion 114,114 extends along bearing plane 113, and configuration relatively.This two side portion 114,114, blank 101 bloat the bloating of reservations 102 time, contact with the thickness direction two sides that bloat reservations 102, thereby suppress to bloat at this contact site that bloats reservations 102.

And then, bear on each bearing plane 113 of mould 111, be positioned at crooked this and bloat the position of reservations 102 sides with respect to the reservations 102 that bloat of blank 101, constitute with bloat the support portion 115 that reservations 102 support of buckling blocked state blank 101.

2 guide way 120,120 identical each other formations.Each guide way 120 as shown in Figure 9, has with the buckling blocked state and inserts the logical inserting hole that bloats reservations 102 121 that keeps the correspondence of blank 101.This inserting hole 121 is arranged at this guide way 120 axial direction of perforation guide way 120.The inlet of inserting hole 121 is located at the base end part of guide way 120, and the outlet of inserting hole 121 is located at the leading section of guide way 120.Form the section shape of inserting hole 121 identical, and in this inserting hole 121 with the section shape that bloats reservations 102 of blank 101, with proper state and also can insert logical blank 101 in the axial direction slidably bloat reservations 102.So, the logical blank 101 of inserting hole 121 interpolations, inserting hole 121 in, dispose blank 101 bloat reservations 102, thereby bloat reservations 102 with what the buckling blocked state kept blank 101 in inserting hole 121.

And then, on the leading section of each guide way 120, for the mutual opposition side of clamping inserting hole 121 and be the position of the thickness direction both sides that bloat reservations 102 of blank 101, be provided with integratedly to outstanding the bloating of the axial direction of this guide way 120 with this guide way 120 respectively and suppress with projection piece 122.This two projection piece 122,122 relatively disposes.The 122b of front edge portion of each projection piece 122 forms on the width that bloats reservations 102 of blank 101 to protruding roughly circular-arc of the front of this projection piece 122.This two projection piece 122,122, blank 101 bloat reservations 102 when bloating, contact with the thickness direction two sides that bloat reservations 102, thereby suppress to bloat at this contact site that bloats reservations 102.

On the one hand, as shown in Figure 8, in near the position of bearing each bearing plane 113 of mould 111, outstanding and be provided with supporting walls portion 116 integratedly with bearing mould 111 to the axial direction that bears mould 111, the lateral surface of a projection piece 122 in two projection pieces 122,122 of this supporting walls portion and guide way 120 contacts, this projection piece 122 is supported.

In addition, as Fig. 7 and shown in Figure 10, each guide way 120 can axial direction be taken in slidably and is remained in the guide way support 123.In addition, in Fig. 7, the 124th, liner between guide way 120 and guide way support 123, that be used to lower force of sliding friction between the two.

Two drifts 130,130 constitute each other equally.Each drift 130 is used for the reservations 102 that bloat of the correspondence of blank 101 are pushed pressurization on its axial direction.Two drifts 130,130 are in the configuration relatively mutually of the axial direction both sides of blank 101.

Two drift drive units 131,131 constitute each other equally.Each drift drive unit 131 is used to make corresponding drift 130 to move on the axial direction of blank 101.This drift drive unit 131 and corresponding drift 130 connections.So, move by making drift drive unit 131, thereby drift 130 is moved, pressurize on its axial direction with the reservations 102 that bloat of 130 pairs of blanks 101 of this drift.As the drive source of drift drive unit 131, use for example fluid pressure cylinder (oil hydraulic cylinder, pneumatic cylinder etc.).

Two guide waies move with drive unit 125,125 identical each other formations.Each guide way moves with drive unit 125, is used to make guide way 120 to move to the rightabout of the moving direction (that is, utilizing 130 pairs corresponding of drifts to bloat the direction of reservations 102 pressurizations) of the drift 130 of correspondence.As the drive source of this drive unit 125, use for example fluid pressure cylinder (oil hydraulic cylinder, pneumatic cylinder etc.).By utilizing this drive unit 125 that guide way 120 is moved, thereby at the leading section of guide way 120 and bear to form between the bearing plane 113 of mould 111 and bloat space E (with reference to Figure 11).This bloats space E, is the space that reservations 102 can bloat to the outside of direction radially that bloats of blank 101.That is, bloat at this reservations 102 that bloat of blank 101 are bloated.

Two bending apparatus 140,140 constitute each other equally.Each bending apparatus 140, blank 101 respectively bloat reservations 102 when bloating, will bloat reservations 102 in its width bending.In the present embodiment, bending apparatus 140 is so that (this axle is called " turning cylinder P " as axle turning cylinder, parallel with the thickness direction that bloats reservations 102 of blank 101 perpendicular to the face that comprises the blank axle.Below identical.) rotate for the center makes guide way 120, thereby bend to the reservations 102 that bloat of blank 101 circular-arc etc. at width.

In the present embodiment, blank 101 is by horizontal arrangement, and the thickness direction that bloats reservations 102 of blank 101 is consistent with above-below direction.Therefore, the turning cylinder P of guide way 120 is towards above-below direction.

Each bending apparatus 140 possesses that to make guide way 120 be the guide way rotating mechanism 141 that rotate at the center with turning cylinder P.

Each guide way rotating mechanism 141 has: with turning cylinder P is that the center circle arcuation is arranged on the circular-arc guide rail 142 on the level ground (not diagram) with extending; The workbench 143 that moves along this circular-arc guide rail 142; With the Working table driving device 144 that this workbench 143 is moved in the mode along circular-arc guide rail 142.As the drive source of Working table driving device 144 for example fluid pressure cylinder (oil hydraulic cylinder, pneumatic cylinder etc.) be connected with workbench 143.On workbench 143, move with guide rail 151,151 by guide way support described later guide way support 123 is set.In this guide way support 123, take in as mentioned above and maintain guide way 120.

So, in this guide way rotating mechanism 141, by making Working table driving device 144 actions, as Figure 11 and shown in Figure 12, guide way 120 moves in the mode along circular-arc guide rail 142 on each workbench 143, thus, makes that guide way 120 is that rotate at the center with turning cylinder P.So, rotate by making guide way 120 like this, make blank 101 to bloat reservations 102 crooked on its width when bloating.

In addition in the present invention, guide way rotating mechanism 141 is not limited to utilize the mechanism of circular-arc guide rail 142, in addition, can also for example utilize gear mechanism.

And then this upsetting processing unit (plant) 110 possesses two of the position change mechanisms 150,150 of the turning cylinder P of each guide way 120 of change.

Two change mechanisms 150,150 constitute each other equally.As Fig. 7 and shown in Figure 10, each changes mechanism 150 has: the described guide way support that is arranged on the workbench 143 moves with guide rail 151,151; The guide way carriage drive device 152 that guide way support 123 is moved in the mode along this guide rail 151,151; Bearing mould moves with guide rail 153,153; Bear mould 111 and bear die drive unit 154,154 with making with what the mode along this guide rail 153,153 moved.By the driving force of bearing die drive unit 154,154, bear mould 111 and move with guide rail 153,153 and move along bearing mould.The guide way support moves with guide rail 151 and bears mould and move with guide rail 153, it is vertical and along the state of horizontal direction extension to be in axle with blank 101 respectively, promptly be in the state that extends on the width that bloats reservations 102 of blank 101, be arranged on the level ground (not diagram).As the drive source that bears die drive unit 154 for example fluid pressure cylinder with bear mould 111 and be connected.In addition, as the drive source of guide way carriage drive device 152 for example fluid pressure cylinder be connected with guide way support 123.

So, in this change mechanism 150, as shown in figure 14, work by making guide way carriage drive device 152, thereby make guide way 120 relatively move with respect to workbench 143 along guide rail 151,151 at each guide way support 123.Meanwhile, bear die drive unit 154 work, bear mould 111 and move along guide rail 153 thereby make by making.Guide way 120 and the moving direction that bears mould 111 for example are the widths that bloats reservations 102 of blank 101.So, on same direction, move mutually with bearing mould 111 by making guide way 120, thus the position that can change turning cylinder P.

The position of turning cylinder P, can be as shown in figure 10 on the axle of blank 101, also can be as shown in figure 14 in position that the axle from blank 101 departs from.That is, in the present invention, can be when bending operation guide way 120 with bear under the condition that mould 111 can not interfere the position of various change turning cylinder P.

Then, below the upsetting processing method of using above-mentioned upsetting processing unit (plant) 110 is described.

At first, as Fig. 7 and shown in Figure 10, the non-reservations 103 that bloat of blank 101 are inserted logical being configured in the retaining hole 112 of bearing mould 111.Thus, blank 101 non-bloats reservations 103 and retrains in retaining hole 112 and be held in the buckling blocked state and axial direction moves blocked state.

And then, two of blank 101 is bloated reservations 102,102 insert the logical inserting hole 121 interior (blank bloats the arrangement step of reservations) that is configured in corresponding guide way 120 respectively.Thus, the reservations 102 that respectively bloat of blank 101 are held in the buckling blocked state in inserting hole 121.Under this state, the lateral surface of a projection piece 122 in two projection pieces 122,122 of supporting walls portion 116 and guide way 120 contacts, and supports projection pieces 122 by supporting walls portion 116 thus.

Then, on one side simultaneously two of blank 101 is bloated reservations 102,102 in the axial direction and pressurize with each self-corresponding drift 130, by guide way move with drive unit 125 and make each guide way 120 to the rightabout of the moving direction of the drift 130 of correspondence simultaneously mobile on one side.Thus, as shown in figure 11, make two of the blank 101 that between the leading section of each guide way 120 and the corresponding bearing plane 113 of bearing mould 111, exposes bloat reservations 102,102, under the state that the contact site that contacts with guide way two projection pieces 122,122 for the thickness direction two sides that respectively bloat reservations 102 suppresses to bloat, and for the thickness direction two sides that respectively bloat reservations 102 with bear the state that contact site that mould two side portion 114,114 contacts suppresses to bloat under, bloat (bloating operation) to the direction outside radially simultaneously respectively.

In addition, about bloat in the operation part that bloats reservations 102 of the blank 101 that bloats to the direction outside radially at this, details are as follows: this part is meant, bloat the part beyond the contact site of reservations 102 and guide way two projection pieces 122,122 and bloat part beyond reservations 102 and the contact site that bears mould two side portion 114,114.That is, in bloating reservations 102, not with guide way two projection pieces 122,122 with bear noncontact portion that mould two side portion 114,114 contacts and bloat to the direction outside radially.

And then, as shown in figure 11, bloat on one side and make two of blank 101 bloat reservations 102,102 in the operation simultaneously to bloat respectively, Yi Bian utilize each self-corresponding bending apparatus 140 to make this two bloat reservations 102,102 simultaneously respectively to its width bending (bending operation) at this.

The bending method that utilizes this bending apparatus 140 is described, as described below.

That is, will bear the fixed-site of mould 111 earlier, during bloating operation simultaneously respectively make two of blank 101 bloat reservations 102,102 to bloat on one side, make Working table driving device 144,144 work of two bending apparatus 140,140 on one side simultaneously.So, each guide way 120 under the part that bloats reservations 102 of blank 101 remains in state in the inserting hole 121, moves along circular-arc guide rail 142 on each workbench 143, and each guide way 120 is that rotate at the center with turning cylinder P.So, be accompanied by guide way 120 and rotate, Yi Bian the reservations 102 that bloat of blank 101 are bloated, Yi Bian make this bloat reservations 102 bending on width under the state that supports to the buckling blocked state by support portion 115.In addition, when this bloated, the material that bloats reservations 102 was born by the bearing plane 113 of bearing mould 111.

In addition, the translational speed of workbench 143, be the speed that bloats reservations 102 of crooked blank 101, can suitably set according to the curved shape of desired bellying 106.

In addition, in the present embodiment, the Working table driving device 144,144 of two bending apparatus 140,140 is worked simultaneously, but in the present invention, and nonessential it is worked simultaneously.That is, in the present invention, there is no need necessarily to bloat reservations 102,102 bending respectively simultaneously with two, also can earlier two any one that bloat in the reservations 102,102 be bloated reservations 102 bendings, crooked another bloats reservations 102 more afterwards.

Afterwards, as shown in figure 12, with blank 101 respectively bloat reservations 102 when bloating established practice setting shape, stop drift 130 move and the moving of guide way 120 in, the moving of stop table 143.

Then, by blank 101 is taken out from the retaining hole 112 of bearing mould 111, obtain desired upsetting processed goods 105 as shown in figure 13.

The upsetting processed goods 105 that obtains like this as preform, as required, is processed its bellying 106 in subsequent handling.As the processing in subsequent handling, for example can enumerate and on bellying 106, offer the perforate processing of lining installation with retaining hole.

In this upsetting processing method, will utilize drift 130 when blank bloats reservations 102 pressurization beginning, blank 101 bloat reservations 102 when beginning to bloat in the leading section of guide way 120 and the length that bloats reservations 102 of bearing the blank 101 that exposes between the bearing plane 113 of mould 111, be set in this buckling critical length that bloats reservations 102 following (preferred) less than the buckling critical length.

In addition, can also postpone to setting-up time between the mobile zero hour of guide way 120 zero hour utilizing drift 130 to bloat reservations 102 pressurization to blank.So, the area of section that bloats reservations 102 when bloating the initial stage increases, so can prevent buckling more reliably.

In this upsetting processing method, can be when manufacturing be used for the preform of manufacturing of product of following shape, produce more the preform near shape of product, being shaped as of this product has that the width two sides bloat respectively and the thickness direction two sides are suppressed the bellying 106 that bloats and this bellying 106 respectively with respect to the axial direction bending.

In addition, in this upsetting processing method, not making blank 101 in bloating these two operations of operation and bending operation is that rotate at the center with its axle, and blank 101 is rotated from axle.Therefore, the reservations 102 that bloat of blank 101 are bloated uneven thickness on Zhou Fangxiang.On the other hand, make blank 101 under the state that axle rotates with blank 101 bloat reservations 102 when crooked, bloating reservations 102 can bloat on Zhou Fangxiang equably, can not bloat uneven thickness.

So, utilize the upsetting processing method of above-mentioned the 3rd embodiment, pressurize in the axial direction with the reservations 102 that bloat of 130 pairs of blanks 101 of drift on one side, guide way 120 is moved on the rightabout of the moving direction of drift 130, thereby the reservations 102 that bloat that make at the leading section of guide way 120 and bear the blank 101 that exposes between the bearing plane 113 of mould 111 bloat to the direction outside radially, therefore can prevent to add in upsetting the buckling of the blank 101 that produces man-hour.

And, in bloating operation, while make the reservations 102 that bloat of blank 101 bloat this is bloated reservations 102 in the width bending, therefore, can will bloat reservations 102 bendings with lower load, also can prevent the inboard facial fold that produces in the curved side of bellying 106.

And, while make the reservations 102 that bloat of blank 101 bloat this is bloated reservations 102 in the width bending, therefore, can make with lower load to bloat reservations 102 and bloat.Promptly, on one side in the axial direction this is being bloated reservations 102 pressurizations in order to make the bloating that reservations 102 bloat of blank 101, when crooked this bloats reservations 102 on one side, this bloats reservations 102, based on processing identical principle, be out of shape in the protruding mode of opposition side drum of curved side so that bloat reservations 102 with the protruding shaping of drum.Therefore, its situation about bloating is compared, can be made with low load to bloat reservations 102 and bloat with not crooked reservations 102 ground that bloat.

And, what make blank 101 bloats reservations 102, under the state that suppresses to bloat at the contact site that contacts with guide way two projection pieces 122,122 of the thickness direction two sides that this bloated reservations 102, and the thickness direction two sides that this bloated reservations 102 with bear the state that contact site that mould two side portion 114,114 contacts suppresses to bloat under, to radially bloating outside the direction, so can suppress reliably respectively the thickness direction two sides that bloat reservations 102 to bloat.Therefore, can form the thickness direction two sides by the bellying 106 that suppresses reliably to bloat.

And, in bloating operation, make two of blank 101 bloat reservations 102,102 simultaneously respectively to radially bloating outside the direction, therefore can be manufactured on the upsetting processed goods 105 that the axial direction both sides form bellying 106,106 respectively efficiently.

In addition, each bearing plane 113 of bearing mould 111 forms such forming face, promptly, this forming face is formed separately the part of the width two sides that bloat reservations 102 of blank 101 and is the regulation shape, therefore the width two sides that bloat reservations 102 of blank 101 can be formed separately for shape of product or approach shape of product.

In addition, in bending operation, be that rotate at the center with the turning cylinder P parallel with the thickness direction that bloats reservations 102 of blank 101 by making guide way 120, thereby can with blank 101 to bloat reservations 102 crooked reliably at its width.

In addition, front edge portion with each projection piece 122 of guide way 120, on the width that bloats reservations 102 of blank 101, form to protruding circular-arc of the front of this projection piece 122, therefore, can prevent guide way 120 in bending operation projection piece 122 the 122b of front edge portion with bear mould 111 and interfere.

Certainly, in this upsetting processing method, do not use shaping dies, therefore can process with low cost with enclosed cavity.

In addition, this upsetting processing unit (plant) 110 possesses the change mechanism 150 of position of the turning cylinder P of change guide way 120, therefore can change according to the curved shape of the desired bellying 106 location-appropriate ground to turning cylinder P.Therefore, can diversely change the curved shape of bellying 106.

In addition, be supported for by support portion 115 in the reservations 102 that bloat of blank 101 that bending bloats reservations 102 under the state of buckling blocked state, therefore, can when bending operation, stop the buckling that bloats reservations 102 reliably.

More than, several embodiments of the present invention is illustrated, but the present invention is not limited to above-mentioned embodiment, can carry out various design alterations.

For example, in the above-described embodiment, two of crooked respectively blank 101 bloats reservations 102,102, but in the present invention, and two any one that bloat in the reservations 102,102 that in addition can also only crooked blank 101 bloat reservations 102.

In addition, in the above-described embodiment, the reservations 102 that bloat of blank 101 are two places, but in the present invention, blank 101 bloat places such as axial direction one sidepiece that reservations 102 can also only be blanks 101 or axial direction pars intermedia.In the present invention, the reservations 102 that bloat at blank 101 only are under the situation at a place, when this being bloated reservations 102 bendings, can be shown in above-mentioned embodiment, making guide way 120 is that rotate at the center with turning cylinder P, guide way 120 is rotated and with the fixed-site of guide way 120, making and bearing mould 111 is that rotate at the center with turning cylinder P.And then both are the mutual backwards rotation in center with turning cylinder P with bearing mould 111 can also to make guide way 120.

In addition, in the above-described embodiment, the number of the projection piece 122 of each guide way 120 is two, but in the present invention for example the number of projection piece 122 can also be one.

In addition, in the above-described embodiment, the number of side wall portion 114 of bearing each bearing plane 113 of mould 111 is 2, but in the present invention, for example the number of side wall portion 114 can also be 1.

In addition, in the above-described embodiment, be provided with projection piece 22 respectively at the leading section of 2 guide waies 120,120, but in the present invention, for example only the leading section of any guide way 120 in two guide waies 120,120 is provided with projection piece 122.

In the above-described embodiment, be respectively arranged with side wall portion 114 in two bearing plane 113,113 of bearing mould 111, but for example can also only be provided with side wall portion 114 on any one bearing plane 113 in bearing two bearing plane 113,113 of mould 111 in the present invention.

In addition, in the present invention, in bloating operation, both can remain under the state in the inserting hole 121 of guide way 120 and finish to bloat, also can finish at once to bloat after all in the inserting hole 121 of guide way 120, extruding will bloating reservations 102 in the part that bloats reservations 102 of blank 101.

In addition, in the present invention, when bloating operation and bending operation, both can blank 101 heating can not heated yet.Promptly in the present invention to the processing temperature condition of blank 101 without any qualification.

Certainly, upsetting processing method involved in the present invention and upsetting processing unit (plant), be not limited to be used to make vehicle with support manufacturing preform, can be used to make various industrial products preforms, for example can be used to make axle with preform, framework with preform, connecting rod piston preform with preform, compressor.

The application, advocate that the Japanese patent application laid that proposed on September 9th, 2005 is willing to the U.S. Provisional Application 60/716 of 2005-262192 number priority, proposition on September 14th, 2005, the Japanese patent application laid that No. 520 priority, on October 21st, 2005 propose is willing to 2005-307849 number priority and the U.S. Provisional Application 60/730 that proposed on October 27th, 2005, No. 366 priority, its disclosed content has intactly constituted the application's a part.

Must recognize, in this employed term and expression, use in order to describe, be not used to carry out limited explanation, be not precluded within shown in this and the feature item of explanation any is equal to replacement, allow the various distortion in claim scope of the present invention.

The present invention can obtain particularly with different ways, the disclosure should be regarded as providing the embodiment of principle of the present invention, these embodiment and do not mean that with the present invention be defined as here record also/or illustrated preferred implementation, on the basis of this understanding, put down in writing a plurality of illustrated embodiments here.

Several illustrated embodiments of the present invention have been put down in writing here, but the various preferred implementations that the present invention is not limited to here to be put down in writing, also comprise have those skilled in the art based on the disclosure all embodiments that are equal to key element, correction, deletion, combination (combination of features that for example spreads all over various embodiments), improvement and/or change that can confirm.The qualification item of claim should broadly explain based on the employed term of this claim, and should not be defined in the embodiment that is put down in writing in this specification or the application's process, and such embodiment should do non-exclusive explanation.

The present invention can be applied to vehicle (automobile, rail vehicle) and have the making of product of the bellying that bloats to the outside of direction radially with support, piston etc. with upsetting processing method and upsetting processing unit (plant).

Claims

1. upsetting processing method, bar-shaped blank is moved blocked state with axial direction to be installed on and to bear mould, and the reservations that bloat of blank are disposed in the inserting hole, and this inserting hole is arranged on the guide way, the reservations that bloat of blank is inserted logical the maintenance with the buckling blocked state;

On one side the reservations that bloat of blank are bloated, on one side bending bloat reservations, make bellying thus from upsetting processed goods as curved shape.

2. the upsetting processing method of putting down in writing according to claim 1, wherein,

Supporting under the state of buckling blocked state by the reservations that bloat of support portion with blank, bending bloats reservations, and this support portion is configured in the side that bending bloats reservations with respect to bloating reservations.

3. the upsetting processing method of being put down in writing according to claim 1 or 2, wherein,

4. a upsetting processed goods obtains by the upsetting processing method of putting down in writing as claim 1.

5. upsetting processing method, the axial direction pars intermedia of bar-shaped blank is moved blocked state with axial direction to be installed on and to bear mould, and the reservations that bloat of the axial direction both sides of blank are disposed at respectively in the inserting hole, and this inserting hole is arranged on the guide way, the reservations that bloat of blank is inserted logical the maintenance with the buckling blocked state;

On one side make two of blank bloat reservations simultaneously respectively and bloat, on one side crooked two at least one that bloat in the reservations bloat reservations, make bellying thus from upsetting processed goods as curved shape.

6. the upsetting processing method of putting down in writing according to claim 5, wherein,

7. the upsetting processing method of being put down in writing according to claim 5 or 6, wherein,

8. a upsetting processed goods obtains by the upsetting processing method of putting down in writing as claim 5.

9. a upsetting processing unit (plant) has: the mould that bears that bar-shaped blank is moved the blocked state installation with axial direction;

Constitute, make at the leading section of guide way and the reservations that bloat of bearing the blank that exposes between the mould bloat to the direction outside radially,

And this device is made bellying from the upsetting processed goods as curved shape; This device is characterised in that,

The bending apparatus that bloats reservations that possesses crooked blank,

Constitute one side the reservations that bloat of blank are bloated, by bending apparatus bending bloat reservations on one side.

10. the upsetting processing unit (plant) of putting down in writing according to claim 9, wherein,

11. the upsetting processing unit (plant) of putting down in writing according to claim 9, wherein,

12. the upsetting processing unit (plant) of putting down in writing according to claim 11, wherein,

13. a upsetting processing unit (plant) possesses: the mould that bears that the axial direction pars intermedia of bar-shaped blank is moved the blocked state installation with axial direction;

Constitute, make at the leading section of each guide way and bear two of the blank that exposes between the mould bloat reservations respectively radius vector bloat to the direction outside,

At least one that possesses that two of crooked blank bloats in the reservations bloats the bending apparatus of reservations,

14. the upsetting processing unit (plant) of putting down in writing according to claim 13, wherein,

15. the upsetting processing unit (plant) of putting down in writing according to claim 13, wherein,

16. the upsetting processing unit (plant) of putting down in writing according to claim 15, wherein,

17. make bellying from upsetting processing method for one kind as the upsetting processed goods of curved shape, it is characterized in that,

This method comprises following operation:

Described bloating the reservations that bloat of blank are bloated on one side, will bloat reservations in its width bending on one side, bellying made thus from upsetting processed goods as curved shape.

18. the upsetting processing method of putting down in writing according to claim 17, wherein,

19. the upsetting processing method of putting down in writing according to claim 18, wherein,

20. the upsetting processing method of putting down in writing according to claim 17, wherein,

21. the upsetting processing method of putting down in writing according to claim 17, wherein,

22. the upsetting processing method of putting down in writing according to claim 17, wherein,

23. the upsetting processing method of putting down in writing according to claim 22, wherein,

24. the upsetting processing method of putting down in writing according to claim 17, wherein,

25. a upsetting processed goods obtains by the upsetting processing method of putting down in writing as claim 17.

26. make bellying from upsetting processing method for one kind as the upsetting processed goods of curved shape, it is characterized in that,

Employed upsetting processing unit (plant), possess: bear mould, it is provided with bearing plane at the axial direction both ends respectively, and is provided with retaining hole with being communicated with two bearing plane, and this retaining hole is inserted logical the maintenance with the non-reservations that bloat of the axial direction pars intermedia of bar-shaped blank with the buckling blocked state; Two guide waies, it has inserts the logical inserting hole that keeps with the buckling blocked state respectively with the reservations that bloat of the axial direction both sides of blank; With two drifts; And the leading section of at least one guide way in two guide waies is provided with integratedly that outstanding bloating suppresses to use projection piece on the axial direction at this guide way;

This method comprises following operation:

On one side make two of blank bloat reservations in the operation respectively simultaneously to bloat described bloating, on one side two at least one that bloat in the reservations are bloated reservations in its width bending, bellying made thus from upsetting processed goods as curved shape.

27. the upsetting processing method of putting down in writing according to claim 26, wherein,

28. the upsetting processing method of putting down in writing according to claim 27, wherein,

29. the upsetting processing method of putting down in writing according to claim 26, wherein,

30. the upsetting processing method of putting down in writing according to claim 26, wherein,

31. the upsetting processing method of putting down in writing according to claim 26, wherein,

32. the upsetting processing method of putting down in writing according to claim 31, wherein,

33. the upsetting processing method of putting down in writing according to claim 26, wherein,

34. a upsetting processed goods obtains by the upsetting processing method of putting down in writing as claim 26.

35. a upsetting processing unit (plant) possesses: bear mould, it has bearing plane, and bearing plane is provided with retaining hole, this retaining hole bloats reservations with bar-shaped blank non-and inserts with the buckling blocked state and keep;

Constitute, make at the leading section of guide way and the reservations that bloat of bearing the blank that exposes between the bearing plane of mould bloat to the direction outside radially,

This upsetting processing unit (plant) also possesses blank is bloated the bending apparatus of reservations in its width bending;

36. the upsetting processing unit (plant) of putting down in writing according to claim 35, wherein,

37. the upsetting processing unit (plant) of putting down in writing according to claim 36, wherein,

38. the upsetting processing unit (plant) of putting down in writing according to claim 35, wherein,

39. the upsetting processing unit (plant) of putting down in writing according to claim 35, wherein,

40. the upsetting processing unit (plant) of putting down in writing according to claim 35, wherein,

41. the upsetting processing unit (plant) of putting down in writing according to claim 40, wherein,

42. the upsetting processing unit (plant) of putting down in writing according to claim 40, wherein,

43. the upsetting processing unit (plant) of putting down in writing according to claim 35, wherein,

44. upsetting processing unit (plant), possess: bear mould, it is provided with bearing plane respectively at the axial direction both ends, and is provided with retaining hole with being communicated with two bearing plane, and this retaining hole is inserted logical the maintenance with the non-reservations that bloat of the axial direction pars intermedia of bar-shaped blank with the buckling blocked state;

Constitute, make two of the blank that between the leading section of each guide way and the corresponding bearing plane of bearing mould, exposes bloat reservations and bloat to the direction outside radially respectively simultaneously,

This upsetting processing unit (plant) also has at least one that two of blank is bloated in the reservations and bloats the bending apparatus of reservations in its width bending;

45. the upsetting processing unit (plant) of putting down in writing according to claim 44, wherein,

46. the upsetting processing unit (plant) of putting down in writing according to claim 45, wherein,

47. the upsetting processing unit (plant) of putting down in writing according to claim 44, wherein,

48. the upsetting processing unit (plant) of putting down in writing according to claim 44, wherein,

49. the upsetting processing unit (plant) of putting down in writing according to claim 44, wherein,

50. the upsetting processing unit (plant) of putting down in writing according to claim 49, wherein,

51. the upsetting processing unit (plant) of putting down in writing according to claim 49, wherein,

52. the upsetting processing unit (plant) of putting down in writing according to claim 44, wherein,