CN101184562A - Method and apparatus for hole punching - Google Patents
Method and apparatus for hole punching Download PDFInfo
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- CN101184562A CN101184562A CNA2006800182821A CN200680018282A CN101184562A CN 101184562 A CN101184562 A CN 101184562A CN A2006800182821 A CNA2006800182821 A CN A2006800182821A CN 200680018282 A CN200680018282 A CN 200680018282A CN 101184562 A CN101184562 A CN 101184562A
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- perforate
- drift
- reservations
- blank
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Abstract
A punching method and a punching device capable of punching with high yield of material and low molding load and preventing underfill from occurring. The punching method comprises a step for pushing open the predicted punched part (2) of a raw material (1) in such a state that an unfilled part (M) remains in a cavity (12) by pressing the predicted punched part (2) of the raw material (1) disposed in the cavity (12) of a closed die (11) from both sides of the predicted punched part (2) by a pair of large and small diameter punches (15) and (13) with different diameters and disposed oppositely to each other, a step for passing the small diameter punch (13) through the predicted punched part (2) of the raw material (1) while or after relieving the pressing of the large diameter punch (15) against the predicted punched part (2) of the raw material (1), and a step for passing the large diameter punch (15) through the predicted punched part (2) of the raw material (1) while or after extracting the small diameter punch (13) passed through the predicted punched part (2) of the raw material (1) from the predicted punched part (2).
Description
Technical field
The present invention relates to employed perforate processing method and perforate processing unit (plant) in the manufacturing of perforate goods such as vehicle (motor vehicle, rail truck etc.) support, connecting rod.
Background technology
All the time, generally when making the perforate goods by forging, consider the problem on die life, the safety, not that the perforate reservations of blank are directly implemented perforate processing, but the perforate reservations of blank are shaped in the residual mode of thin clout, then expect and enforcement finishing etc. in order to remove.
In addition, in Japanese kokai publication hei 11-147157 communique, disclose such method, promptly, with stamping period dumming preform in the chamber (formingspace) of inaccessible mould, then the perforate reservations are forged and pressed in the residual mode of thin clout, afterwards, remove clout (with reference to patent documentation 1) with this drift stamping-out by the drift that is inserted in the inaccessible mould.
Patent documentation 1: Japanese kokai publication hei 11-147157 communique
Summary of the invention
So, in above-mentioned existing perforate processing method because be the method that stamping-out is removed clout behind block forging, so when forging for the generation that prevents misrun (local lack of fill) needs high shaping load, and stock utilization is low.
The present invention makes in view of above-mentioned technical background, its purpose is, a kind of stock utilization height is provided and can carries out the perforate processing method that perforate is processed, can also be prevented the generation of local lack of fill with low load, by the perforate goods of this method gained, and in described perforate processing method used perforate processing unit (plant).
The invention provides following scheme.
(1) a kind of perforate processing method is characterized in that, comprises following operation:
Perforate reservations to the blank in the chamber that is configured in inaccessible mould, different and a pair of big footpath and path drift that dispose to ground relatively with diameter, push from the mutual reverse side of clamping perforate reservations, thus the extruding of perforate reservations is expanded to the state of residual not filling part in chamber;
When the big footpath of releasing drift is to the extruding of the perforate reservations of blank or after removing, make the path drift connect the perforate reservations of blank; With
Path drift under the state that will be in the perforate reservations that connect blank makes big footpath drift connect the perforate reservations of blank when the perforate reservations are extracted or after extracting.
(2) the perforate processing method of being put down in writing as preceding paragraph 1, wherein, the leading section of path drift is formed the more and more thinner shape of front end, and the side face of the leading section of path drift, the multistage conical surface of being arranged by the mode that reduces with the preceding extreme direction cone angle towards this path drift gradually interimly forms.
(3) the perforate processing method of being put down in writing as preceding paragraph 2, wherein, when the progression of the conical surface of the side face of the leading section that will form the path drift is made as N level (wherein N 〉=2),
The leading section of big footpath drift is formed the more and more thinner shape of front end, and the side face of the leading section of big footpath drift, the conical surface by the mode progression that arrange, littler than N that reduces with the preceding extreme direction cone angle towards this big footpath drift gradually interimly forms, and is perhaps formed by the one-level conical surface.
(4) as each perforate processing method of putting down in writing in the preceding paragraph 1 to 3, wherein, in inaccessible mould, be provided with each drift and plug in drift inserting hole logical and that be communicated with chamber respectively,
Insert at each drift and to lead under the state in each self-corresponding drift inserting hole, between the side face of the side face of drift and drift inserting hole, be formed with the gap that the surplus material of the perforate reservations of blank flows in the chamber.
(5) the perforate processing method of being put down in writing as preceding paragraph 4 wherein, on the side face of drift, is provided with highlightedly outside the radial direction of this drift and prevents to flow into the weir portion of the surplus material in described gap to the outside discharge.
(6) as each perforate processing method of putting down in writing in the preceding paragraph 1 to 5, wherein, in described extruding expansion process, with the mutual reverse side of two drifts from the perforate reservations of clamping blank, so that the discontiguous each other mode of the front end of this two drift is pushed the perforate reservations of blank.
(7) as each perforate processing method of putting down in writing in the preceding paragraph 1 to 6, wherein, blank is bar-shaped, and the regulation position of the axial direction of this blank is set at the perforate reservations,
Be included in the preceding operation of in advance the perforate reservations of blank being carried out hole enlargement of described extruding expansion process by the upsetting processing unit (plant),
Described upsetting processing unit (plant), possess: the fixed mould that is connected with inaccessible mould and blank is fixed, have the perforate reservations of blank are inserted logical guide way and the pressurization drift that is held in the inserting hole of buckling blocked state, and position in mutual reverse side leading section, the clamping inserting hole of guide way, be provided with a pair of hole enlargement outstanding on the axial direction of guide way respectively integratedly and suppress to use projection piece
In described hole enlargement operation, the perforate reservations that will be fixed in the blank of fixed mould are configured in the chamber, and the perforate reservations of blank are inserted logical remaining in the inserting hole of guide way, then, thereby the pressurization drift is moved with this pressurization drift to pressurize in the axial direction to the perforate reservations of blank, guide way is moved on the direction opposite with the moving direction of pressurization drift, make the perforate reservations of the blank that between the leading section of guide way and fixed mould, exposes, suppress under the state of hole enlargement at the contact site that contacts with the guide way projection piece these perforate reservations, hole enlargement in chamber
In described extruding expansion process, to blank by hole enlargement the perforate reservations, keep being configured in the state in the chamber, with two drifts from pushing by the both sides of the hole enlargement inhibition direction of the determined perforate reservations of guide way two projection pieces.
(8) by perforate goods as the perforate processing method gained that each is put down in writing in the preceding paragraph 1 to 7.
(9) a kind of perforate processing unit (plant), it is characterized in that, possess: inaccessible mould and a pair of big footpath and path drift with chamber, this a pair of drift mutually relatively is configured in the mutual reverse side that clamping is in the perforate reservations of the blank under the state in the chamber that is configured in inaccessible mould to ground, diameter is different
Perforate reservations to the blank in the chamber that is configured in inaccessible mould, push from the mutual reverse side of clamping perforate reservations with two drifts, thereby extruding expansion perforate reservations, then, when the big footpath of releasing drift is to the extruding of the perforate reservations of blank or after removing, make the path drift connect the perforate reservations of blank, then, path drift under the state that will be in the perforate reservations that connect blank makes big footpath drift connect the perforate reservations of blank when the perforate reservations are extracted or after extracting.
(10) the perforate processing unit (plant) of being put down in writing as preceding paragraph 9, wherein, the leading section of path drift is formed the more and more thinner shape of front end, and the side face of the leading section of path drift, the multistage conical surface of being arranged by the mode that reduces with the preceding extreme direction cone angle towards this path drift gradually interimly forms.
(11) the perforate processing unit (plant) of being put down in writing as preceding paragraph 10, wherein, when the progression of the conical surface of the side face of the leading section that will form the path drift is made as N level (wherein N 〉=2),
The leading section of big footpath drift is formed the more and more thinner shape of front end, and the side face of the leading section of big footpath drift, the conical surface by the mode progression that arrange, littler than N that reduces with the preceding extreme direction cone angle towards this big footpath drift gradually interimly forms, and is perhaps formed by the one-level conical surface.
(12) as each perforate processing unit (plant) of putting down in writing in the preceding paragraph 9 to 11, wherein, in inaccessible mould, be provided with each drift and plug in drift inserting hole logical and that be communicated with chamber respectively,
Insert at each drift and to lead under the state in each self-corresponding drift inserting hole, between the side face of the side face of drift and drift inserting hole, be formed with the gap that the surplus material of the perforate reservations of blank flows in the chamber.
(13) the perforate processing unit (plant) of being put down in writing as preceding paragraph 12 wherein, on the side face of drift, is provided with highlightedly outside the radial direction of this drift and prevents to flow into the weir portion of the surplus material in described gap to the outside discharge.
(14) as each perforate processing unit (plant) of putting down in writing in the preceding paragraph 9 to 13, wherein, blank is bar-shaped, and the regulation position of the axial direction of this blank is set at the perforate reservations,
Possess the upsetting processing unit (plant) that before the perforate reservations of blank being pushed expansion, the perforate reservations of blank is carried out hole enlargement,
Described upsetting processing unit (plant), possess: the fixed mould that is connected with inaccessible mould and blank is fixed, have the perforate reservations of blank are inserted the logical guide way that is held in the inserting hole of buckling blocked state, to inserting the pressurization drift that the perforate reservations lead to the blank in the inserting hole of guide way are pressurizeed in the axial direction, with the drift drive unit that guide way is moved on the direction opposite with the moving direction of pressurization drift, and at the leading section of guide way, the position of the mutual reverse side of clamping inserting hole, be provided with a pair of hole enlargement outstanding on the axial direction of guide way respectively integratedly and suppress to use projection piece
The projection piece of guide way, the part of the side face of perforate reservations and the contacts side surfaces of projection piece when the hole enlargement of the perforate reservations of blank, thus the contact site that contacts with projection piece of perforate reservations is suppressed hole enlargement.
The present invention plays following effect.
In the invention of (1), perforate reservations to the blank in the chamber that is configured in inaccessible mould, with a pair of big footpath and path drift, push from the mutual reverse side of clamping perforate reservations, thus the extruding of perforate reservations is expanded to the state of residual not filling part in chamber, therefore, can in chamber, push expansion to the perforate reservations with low load.
And then, connect the perforate reservations of blank by making the path drift, have the hole of path in the perforate reservations, therefore, can be with lower load perforate.And, by the perforation of this path drift action, the material in can the not filling part in chamber in the perforate reservations of the partially filled blank of the front side of the perforation direction of path drift.
And, connecting the perforate reservations of the blank in the hole that so has path by making big footpath drift, the hole of path is by hole enlargement, thereby has the hole in big footpath on the perforate reservations, therefore, can be with lower load perforate.And, by the perforation of this big footpath drift action, the material in can the not filling part in chamber in the perforate reservations of the partially filled blank of the front side of the perforation direction of big footpath drift.Therefore, can eliminate all filling parts not substantially in the chamber, packing material in whole chamber, thus can prevent the generation of local lack of fill.
In addition, perforate processing method of the present invention is not to remove the method that the material of the perforate reservations of blank carries out perforate by stamping-out, therefore, and the stock utilization height.
In the invention of (2), because the front end of path drift is formed the more and more thinner shape of front end, so can make the path drift connect the perforate reservations of blank with low load.And, because the side face of the leading section of path drift, the multistage conical surface of being arranged by the mode that reduces with the preceding extreme direction cone angle towards this path drift gradually interimly forms, so the setting of multistage cone angle that can be by the path drift is adjusted to shaping load the value of regulation.In addition, perforation operation by the path drift, the perforate reservations that can make blank are to the extruding expansion effectively of the radial direction outside of this path drift, thereby in can the not filling part in chamber in the part of the front side of the perforation direction of path drift, fill the material of the perforate reservations of blank reliably.
In the invention of (3), the leading section of big footpath drift is formed the more and more thinner shape of front end, so can make big footpath drift connect the perforate reservations of blank with low load.And, the side face of the leading section of big footpath drift, the conical surface by the mode progression that arrange, littler than N that reduces with the preceding extreme direction cone angle towards this big footpath drift gradually interimly forms, and is perhaps formed by the one-level conical surface, so shaping load can be adjusted to the value of regulation.In addition, perforation operation by big footpath drift, the perforate reservations that can make blank are to the extruding expansion effectively of the radial direction outside of this big footpath drift, thereby in can the not filling part in chamber in the part of the front side of the perforation direction of big footpath drift, fill the material of the perforate reservations of blank reliably.
In the invention of (4), insert at each drift and to lead under the state in each self-corresponding drift inserting hole, between the side face of the side face of drift and drift inserting hole, be formed with the gap that the surplus material of the perforate reservations of blank flows in the chamber, therefore, can fill the material of the perforate reservations of blank with the not filling part of lower load in chamber.
In the invention of (5), can prevent that the surplus material that flows into described gap from discharging to the outside by means of weir portion.
In the invention of (6), can prevent breakage, the damage of the drift front end that produces owing to the contact between the front end of two drifts.
In the invention of (7), then the perforate reservations are implemented perforate and add man-hour in advance the perforate reservations of blank being carried out hole enlargement, can carry out this processing well by operating efficiency.
In the invention of (8), can provide the perforate goods that local lack of fill do not take place or local lack of fill does not take place substantially.
To the invention of (14), can provide the perforate processing unit (plant) that can be applicable to perforate processing method involved in the present invention well in (9).
Description of drawings
Fig. 1 is the exploded perspective view of the related perforate processing unit (plant) of an embodiment of the invention.
Fig. 2 is the sectional block diagram of the perforate processing unit (plant) under the state before by this perforate processing unit (plant) the perforate reservations of blank being carried out hole enlargement.
Fig. 3 is the horizontal cross of the perforate processing unit (plant) under the state of Fig. 2.
Fig. 4 is along the A-A line cutaway view among Fig. 2.
Fig. 5 is the sectional block diagram that the perforate reservations of blank is carried out the perforate processing unit (plant) under the hole enlargement state midway by this perforate processing unit (plant).
Fig. 6 is the horizontal cross of the perforate processing unit (plant) under the state of Fig. 5.
Fig. 7 is the sectional block diagram that the perforate reservations of blank is carried out the perforate processing unit (plant) under the state after the hole enlargement by this perforate processing unit (plant).
Fig. 8 is the horizontal cross of the perforate processing unit (plant) under the state of Fig. 7.
Fig. 9 is along the B-B line cutaway view among Fig. 7.
Figure 10 is the cutaway view that the perforate reservations of blank is pushed the perforate processing unit (plant) under the state after the expansion by this perforate processing unit (plant).
Figure 11 makes the path drift connect the cutaway view of the perforate processing unit (plant) under the state of perforate reservations of blank by this perforate processing unit (plant).
Figure 12 makes big footpath drift connect the cutaway view of the perforate processing unit (plant) under the state of perforate reservations of blank by this perforate processing unit (plant).
Figure 13 is the stereogram by the perforate goods of this perforate processing unit (plant) gained.
Symbol description
1 blank, 2 perforate reservations
3 holes, 6 perforate goods (preform)
10 perforate processing unit (plant)s, 11 inaccessible moulds
12 chambers, 13 path drifts
14 leading sections, 15 big footpath drifts
16 leading sections, 17 drift inserting holes
18 gaps, 19 slip slot parts
20 upsetting processing unit (plant)s, 21 fixed moulds
22 guide waies, 23 inserting holes
24 hole enlargements suppress the side with projection piece 24a
The moving direction of 25 pressurization drifts, 27 guide waies
The moving direction 30 drift drive units of 28 pressurization drifts
32 guide way drive units, 33 pressurization drift drive units
M is filling part not
The specific embodiment
Next, with reference to accompanying drawing an embodiment of the invention are carried out following explanation.
In Fig. 1, the 10th, the perforate processing unit (plant) that present embodiment is related, the 1st, blank.In addition, in Figure 13, the 6th, utilize the perforate goods (perforate processed goods) of perforate processing unit (plant) manufacturing.These perforate goods 6 are used the preform of support as the vehicle of Production Example such as motor vehicle, rail truck etc.
As shown in Figure 1, blank is straight bar-shaped, is made of for example aluminium (comprise its alloy, down with).The section shape of blank 1 is circular, and the area of section of blank 1 is certain in the axial direction.
In addition in the present invention, the material of blank 1 is not limited to aluminium, can be the metal of brass, copper, stainless steel etc. for example, can also be plastics.In addition, the section shape of blank 1 is not limited to circle, can be the polygon of quadrangle, hexagon etc.
The perforate reservations 2 of this blank 1 lay respectively at the axial direction both sides of blank 1, specifically, are positioned at the both ends of blank 1, that is to say that the both ends of blank 1 become perforate reservations 2 respectively.So, be substantially after the circular plate type in each perforate reservations 2 hole enlargement with blank 1, to this by hole enlargement perforate reservations 2 impose perforate processing, thereby obtain perforate goods 6 as shown in figure 13.
In these perforate goods 6, be subjected to perforate processing the position, be that perforate adds the Ministry of worker's 5 correspondences and the linking part that with miscellaneous part be connected of vehicle with support, add in the Ministry of worker 5 formed hole 3 with for example axle bush installation retaining hole is corresponding in this perforate.This hole 3, connecting by hole enlargement is that the thickness direction of discoideus perforate reservations 2 is provided with, its section shape be a circle.
In these perforate goods 6, for example to add the diameter of the Ministry of worker 5 be 70mm in each perforate, and thickness is 24mm, and the diameter in hole 3 is 30mm, and the length that two perforates add between the Ministry of worker 5,5 is 300mm.In addition, the diameter of blank 1 is 18mm.But the diameter of the size at each position of perforate goods 6 and blank 1 is not limited to above-mentioned size in the present invention.Can set the size at each position and the diameter of blank 1, to realize purpose of the present invention with the manufactured place of perforate goods 6 such as support, connecting rod corresponding to for example vehicle (motor vehicle, rail truck etc.).
The perforate processing unit (plant) 10 of present embodiment, be to be used on the perforate reservations 2 of blank 1, getting hole 3, as shown in Figure 1, possess: inaccessible mould 11 (inaccessible metal die), a pair of two groups drift 13,15 (being the perforate drift), drift drive unit 30 and the upsetting processing unit (plant) 20 that each drift 13,15 is moved.
The perforate reservations 2 of configuration blank 1 in the chamber 12 of inaccessible mould 11.
A pair of drift 13,15, its section is formed circle respectively.Each drift the 13, the 15th is used for getting hole 3 on the perforate reservations 2 of the correspondence of blank 1.Two drifts, 13,15 mutual diameter differences.And two drifts 13,15 are configured in the mutual reverse side that clamping is in the perforate reservations 2 of the blank 1 under the state that is configured in the chamber 12 to ground mutually relatively.In other words, two drifts 13,15 are by the mutual mutual reverse side that relatively is configured in clamping chamber 12.In the present embodiment, two drifts 13,15 are disposed to ground up and down relatively.
In addition, in this manual, claim the side that diameter is bigger in two drifts 13,15 to be " big footpath drift 15 ", the less side of title diameter is " a path drift 13 ".
The diameter of big footpath drift 15 is set to the size identical with the diameter in desirable hole 3.On the other hand, the diameter of path drift 13 is set forr a short time than the diameter of big footpath drift 15, calculates definite according to the various conditions such as cone angle of the side face of the leading section of the ability of the drift drive unit 30 that drives this path drift 13, the stroke that connects perforate reservations 2 necessary path drifts 13, path drift 13.For example, the diameter of path drift 13 is set at more than 0.4 times and in the scope less than 1 times (preferred 0.66～0.95 times) of diameter of big footpath drift 15.But in the present invention, the diameter of path drift 13 is not limited to this scope.
The leading section 14 of path drift 13 forms thin more shape as shown in Figure 4 more forward.And the side face of the leading section 14 of path drift 13 is formed by multistage conical surface 14a, 14b, and this multistage conical surface is to arrange towards the preceding extreme direction cone angle 1 of this path drift 13, the mode that α 2 reduces gradually interimly.In the present embodiment, the progression of conical surface 14a, 14b is 2 sections.Therefore, among the cone angle 1 of these conical surfaces 14a, 14b, the α 2, from the cone angle 1 and the partial cone angle 2 of the preceding terminal number first order of path drift 13, be set to α 1＜α 2.
The leading section 16 of big footpath drift 15 forms thin more shape more forward.Here for convenience of description, the progression of conical surface 14a, 14b of side face that forms the leading section 14 of path drift 13 is made as N level (wherein N 〉=2).In this case, the side face of the leading section 16 of big footpath drift 15 is formed by the conical surface 16a of the mode progression that arrange, littler than N that reduces with the preceding extreme direction cone angle towards this big footpath drift 15 gradually interimly.In the present embodiment, because N=2, so the side face of the leading section 16 of big footpath drift 15 is formed by one-level conical surface 16a.β 1 is the cone angle of this conical surface 16a.
N 〉=2 in addition, in the present invention, are not limited to N=2, as long as for example can also be N=3,4 or 5.In addition, forming the big directly progression of the conical surface 16a of the side face of the leading section 16 of drift 15, be not limited to 1 grade, so long as the progression littler than N gets final product, can be 1 section or 2 sections when N=3 for example, can be 1～3 grade when N=4, can be 1～4 grade when N=5.
Here, in this manual, the cone angle 1 of conical surface 14a, 14b, 16a, α 2, β 1 are meant conical surface 14a, 14b, the 16a axis angulation with respect to drift 13,15.
In addition, the front end face of each drift 13,15 is formed plane.But, in the present invention, be not limited to front end face with each drift 13,15 and form planely, can also be bent to form and be convex-shaped.
In addition, two drifts 13,15 are connected with drift drive unit 30 respectively.So, by making drift drive unit 30 action, each self-corresponding drift 13,15 is moved free to advance or retreatly relative to chamber 12, that is, drift 13,15 is moved and enter in the chamber 12, perhaps make it mobile and in chamber 12, withdraw from.
Position in the mutual reverse side of the clamping chamber 12 of inaccessible mould 11 (be in the present embodiment both sides) up and down is provided with the drift inserting hole 17,17 of inserting logical each drift 13,15 respectively and being communicated with chamber 12.So each drift 13,15 above-below direction moves and inserts logical being configured in each self-corresponding drift inserting hole 17,17 freely.Under this state, as shown in Figure 4, between the side face of the side face of each drift 13,15 and each drift inserting hole 17,17, the whole circumference direction that spreads all over each drift 13,15 is formed with gap 18 (clearance between so-called drift 13,15 and each the drift inserting hole 17,17).The surplus material of the perforate reservations 2 of blank 1 (so-called clout) flows into this gap 18 (with reference to Figure 11 and Figure 12) from chamber 12.In addition, the surplus material 2 that flows into this gap 18 remains in the circumferential edges in hole 3 as overlap.
And, on the side face of each drift 13,15, spread all over the 13a of weir portion, 15b that surplus material 2a that being formed with in full week of drift 13,15 prevent to flow into gap 18 discharges to the outside of inaccessible mould 11, this two weirs portion is to the radial direction outside of drift 13,15 and bloats shape.
Upsetting processing unit (plant) 20 is to be used for simultaneously two perforate reservations 2,2 of blank 1 being carried out hole enlargement.
This upsetting processing unit (plant) 20, as Fig. 1～shown in Figure 3, possess: the fixed mould that is connected with inaccessible mould 11 and blank 1 is fixed 21, two 22,22, two pressurization drifts 25,25 of guide way (being the upsetting drift), 32,32 and two pressurization drift drive units 33,33 of two guide way drive units.
Fixed mould 21 is made of the position between two chambers 12,12 of inaccessible mould 11, forms with inaccessible mould 11 one with being connected with.Fixed mould 21 is divided into two up and down along its axial direction.And the side of cutting apart of inaccessible mould 11 and fixed mould 21 is retained the state of mutual assembling each other by mould holding member (not having diagram), and inaccessible thus mould 11 and fixed mould 21 can not decompose on non-original idea ground.In addition, in the present invention, fixed mould 21 can be the parts with inaccessible mould 11 splits.
Fixed mould 21 is used for blank 1 is fixed, and makes blank 1 not move to non-original idea in the axial direction when hole enlargement.On this fixed mould 21, on the axial direction of fixed mould 21, extend and be provided with communicatively with two chambers 12,12 that blank is fixing use embedded hole 21a, in this embedded hole 21a, embed the axial direction pars intermedia of fixing as the non-perforate reservations of blank 14.This blank is fixing uses embedded hole 21a because the axial direction pars intermedia 4 of blank 1 embeds, thereby blank 1 is fixed to such an extent that can't move in the axial direction, and has stoped the hole enlargement and the buckling of the axial direction pars intermedia 4 of blank 1.
Two guide waies 22,22 constitute identical mutually.Each guide way 22,22 has the perforate reservations 2 slotting logical inserting holes 23 that are held in the buckling blocked state with the correspondence of blank 1.This inserting hole 23 is set to extend and run through guide way 20 on the axial direction of guide way 20.The diameter dimension of this inserting hole 23 is set to, can be with the perforate reservations 2 of blank 1 with proper state and insert sliding freely in the axial direction in this inserting hole 23.
In addition, position in the mutual reverse side of the clamping inserting hole 23 of the leading section of guide way 22, being provided with a pair of hole enlargement outstanding on the axial direction of guide way 22 respectively integratedly suppresses with projection piece 24,24, be accompanied by moving of guide way 22, two projection pieces 24,24 and guide way 22 move integratedly.In addition, be in the part of the side face of the perforate reservations 2 of inserting the blank 1 under the state that leads in the inserting hole 23 of guide way 22, when the hole enlargement of perforate reservations 2, contact with the side 24a towards inserting hole 23 sides of each projection piece 24, thus, contact site perforate reservations 2 and projection piece 24 is suppressed hole enlargement.
On the other hand, on the upper and lower surface of the chamber 12 of inaccessible mould 11, be respectively arranged with the slip slot part 19 that on the axial direction of inaccessible mould 11, extends.The projection piece 24 of guide way 22 inserts this slip slot part 19 sliding freely on the axial direction of inaccessible mould 11.
In addition, with the side 24a of the part projection piece 24 that contact, guide way 22 of the side face of the perforate reservations 2 of blank 1, be formed corresponding of the side face shape of the perforate reservations 2 after the hole enlargement with blank 1.And, under projection piece 24 is inserted into state in the slip slot part 19, the side 24a of projection piece 24 and chamber 12 top or below be linked to be a face.In addition, in the present embodiment, the side 24a of this projection piece 24 is that the face of circle of thickness direction both sides of substantially discoideus perforate reservations 2 is corresponding with hole enlargement, is formed plane.
In addition, each guide way 22 is divided into two up and down by the divisional plane of vertical profile inserting hole 23.And the side of cutting apart of each guide way 22 is retained the state of mutual assembling each other by guide way holding member (not having diagram), and guide way 22 can not decompose on non-original idea ground thus.
Each drift 25 that pressurizes is used in the axial direction the perforate reservations 2 of the correspondence of blank 1 are pressurizeed.Two pressurization drifts 25,25 are configured in the axial direction both sides of blank 1 mutually relatively to ground.
Each drift drive unit 33 that pressurizes is used to make the drift 25 that respectively pressurizes to move on the axial direction of blank 1 respectively, and pressurization drift 25 given is used for driving force that the perforate reservations 2 of blank 1 are pressurizeed.This drift drive unit 33 that respectively pressurizes is connected with corresponding pressurization drift 25.Pressurization drift drive unit 33 is pressed (oil pressure, air pressure etc.), electro-motor etc. by the mechanical cam, the fluid that utilize forcing press, gives driving force to pressurization drift 25.
Each guide way drive unit 32 makes each guide way 22 move (with reference to Fig. 6) on the rightabout 27 of the moving direction 28 of each self-corresponding pressurization drift 25 compression aspect of 25 pairs of blank perforates of pressurization drift reservations 2 (promptly by).This each guide way drive unit 32 is connected with corresponding guide way 22.Guide way drive unit 32 is pressed (oil pressure, air pressure etc.), electro-motor, spring etc. by the mechanical cam, the fluid that utilize forcing press, gives driving force to guide way 22.
Next, the perforate processing method of having used above-mentioned perforate processing unit (plant) 10 is carried out following explanation.
At first, as Fig. 2～shown in Figure 7, carry out the hole enlargement operation, that is, each perforate reservations 2 of the 20 pairs of blanks 1 of upsetting processing unit (plant) by perforate processing unit (plant) 10 are carried out hole enlargement in advance.In the present embodiment, simultaneously two perforate reservations 2,2 of blank 1 are carried out hole enlargement.
This diameter enlarging method is carried out following explanation.
As Fig. 2～shown in Figure 4, by the non-perforate reservations with blank 1 is fixing the using among the embedded hole 21a of blank that axial direction pars intermedia 4 embeds fixed mould 21, thereby with blank 1 be fixed on make in the fixed mould 21 blank 1 can be non-original idea ground move in the axial direction, and each perforate reservations 2 of blank 1 are configured in each self-corresponding chamber 12.In the present embodiment, in chamber 12, connect the perforate reservations 2 of shape ground configuration blank 1.Therefore, only have the part of close axial direction pars intermedia to be configured in the chamber 12 in the perforate reservations 2 of blank 1, the distolateral part of perforate reservations 2 is configured to from the outstanding state of chamber 12.
And then, each perforate reservations 2 of blank 1 are inserted the inserting hole 23 that leads to each self-corresponding guide way 22, thus each perforate reservations 2 is held in the buckling blocked state.Also have, in the slot part 19 that respectively slides of inaccessible mould 11, insert the projection piece 24 of each self-corresponding guide way 22.Under this state, the position of the mutual reverse side of the side face of each perforate reservations 2 of blank 1 contacts with side 24a, the 24a of two projection pieces 24,24 of guide way 22.
Next, as Fig. 5 and shown in Figure 6, thereby make 33,33 actions simultaneously of two pressurization drift drive units that two pressurization drifts 25,25 are moved simultaneously on one side, two perforate reservations 2,2 of blank 1 are by the pressurization simultaneously in the axial direction of each self-corresponding pressurization drift 25,25, on one side thus two guide way drive units 32,32 moves simultaneously make 22,22 whiles of two guide waies mobile on the direction 27 opposite with the moving direction 28 of each self-corresponding pressurization drift 25,25.Thus, the part of the side face of the perforate reservations 2 of the blank 1 that exposes between the leading section of each guide way 22 and fixed mould 21 contacts with side 24a, the 24a of two projection pieces 24,24 of guide way 22, thereby to suppressing hole enlargement by the contact sites with two projection pieces 24,24 guide way these perforate reservations 2, under this state, in chamber 12, these perforate reservations 2 (specifically, be these perforate reservations 2 except that the part side face and the contact site that guide way two projection pieces 24,24 contact) are carried out hole enlargement.
In addition, in the present invention, the translational speed, the translational speed of guide way 22 of pressurization drift 25 are set according to the hole enlargement design shape of the perforate reservations 2 of blank 1.In addition, these translational speeds can be certain, also can change.
With moving together of pressurization drift 25 and guide way 22, the perforate reservations 2 of blank 1, as mentioned above like that under the state to the contact site that contact with guide way two projection pieces 24, the 24 inhibition hole enlargement of these perforate reservations 2, by slowly hole enlargement, the material of these perforate reservations 2 is filled in the chamber 12 in chamber 12.
Next, as Fig. 7～shown in Figure 9, in the perforate reservations 2 of blank 1 by hole enlargement during for the regulation shape, the moving of stop to pressurize drift 25 and guide way 22.At this moment, the part of the material of residual perforate reservations 2 of not filling blank 1 as yet, i.e. filling part M not in chamber 12.In this state, the perforate reservations 2 of blank 1 are cardinal principle circular arc in its width both sides difference hole enlargement only, almost do not have hole enlargement on thickness direction.
As mentioned above, two perforate reservations 2,2 of blank 1 are carried out hole enlargement.
Next, as shown in figure 10, respectively in the following order to the hole enlargement of blank 1 each perforate reservations 2 impose perforate processing.
Be about to it and be configured under state chamber 12 in each the perforate reservations 2 after the hole enlargement of blank 1 not being taken out in the chamber 12, thereby make 30,30 actions of drift drive unit make big footpath and 13,15 whiles of path drift in chamber 12, enter mobile.Thus, with two drifts 13,15, from the mutual reverse side of these perforate reservations 2 of clamping so that discontiguous mode between the front end of two drifts 13,15 simultaneously perforate reservations 2 are pushed.In the present embodiment, with two drifts 13,15, the hole enlargements of determining from two projection pieces 24,24 by guide way 22 of perforate reservations 2 suppress the both sides (that is the thickness direction both sides of perforate reservations, 2) of direction and push.Thus, as shown in figure 10, the leading section 14,16 of two drifts 13,15 is pressed into perforate reservations 2, makes perforate reservations 2 in chamber 12, push expansion, (extruding expansion process).
But, in this extruding expansion process, as shown in figure 10, under the state after the perforate reservations 2 extruding expansion of blank 1, the residual part of the material of perforate reservations 2, i.e. the filling part M not of not filling as yet in chamber 12.
In addition, preferred in this extruding expansion process, simultaneously perforate reservations 2 are pushed with two drifts 13,15.If utilize 13,15 pairs of perforate reservations 2 of two drifts to push not is simultaneously, influx in the gap 18,18 of the material of then perforate reservations 2 between the side face of the side face of drift 13,15 and drift inserting hole 17,17 increases, the possibility that exists stock utilization to reduce.But in the present invention, the extruding that does not limit 13,15 pairs of perforate reservations 2 of two drifts is simultaneously.
Next, as shown in figure 11, big footpath drift 15 being moved in chamber 12 on one side withdraws from, remove the extruding of the perforate reservations 2 of 15 pairs of blanks 1 of big footpath drift, make the leading section 14 of path drift 13 deeper insert perforate reservations 2 on one side, make path drift 13 on the thickness direction of perforate reservations 2, run through these perforate reservations (the perforation operation of path drift 13).Consequently, leave through hole 3a with the corresponding path of diameter of path drift 13 in perforate reservations 2.In the present invention, can after the extruding of releasing, make path drift 13 connect perforate reservations 2 by the perforate reservations 2 of 15 pairs of blanks 1 of big footpath drift.
By the perforation operation to perforate reservations 2 of this path drift 13, the gap 18,18 between the side face of the surplus material 2a of perforate reservations 2 each drift 13,15 of inflow in chamber 12 and the side face of drift inserting hole 17,17.The surplus material 2a of this inflow becomes overlap.In addition, the surplus material 2a of this inflow is blocked by the 13a of weir portion, the 15a of each drift 13,15, prevents that it is to outside of inaccessible mould 11 discharge.And, with the perforation of this path drift 13 operation together, the part M1 among the not filling part M chamber 12 in, the material of the perforate reservations 2 of filling blank 1 in the front side of the perforation direction of path drift 13.
Next, as shown in figure 12, path drift 13 being moved in chamber 12 on one side withdraws from, the path drift 13 that will be in the state that connects perforate reservations 2 is extracted from perforate reservations 2, the leading section 16 of big footpath drift 15 is pressed into the hole 3a of the path that is formed on perforate reservations 2 on one side, make and to connect perforate reservations 2 by big footpath drift 15, (the perforation operation of big footpath drift 15).Thus, the hole 3a of path is extended, thereby has got the hole 3 with corresponding, the desired big footpath of the diameter of big footpath drift 15 on perforate reservations 2.In addition in the present invention, also can after being extracted from perforate reservations 2, path drift 13 make big footpath drift 15 connect perforate reservations 2.
Perforation operation by 15 pairs of perforate reservations 2 of this big footpath drift, the surplus material 2a of perforate reservations 2 flows into the gap 18,18 between the side face of the side face of each drift 13,15 and drift inserting hole 17,17 in the chamber 12.The surplus material 2a of this inflow becomes overlap.In addition, the surplus material 2a of this inflow is blocked by the 13a of weir portion, the 15a of each drift 13,15, prevents that it is to outside of inaccessible mould 11 discharge.And, with the perforation of this big footpath drift 15 operation together, the part M2 among the not filling part M chamber 12 in, the material of the perforate reservations 2 of filling blank 1 in the front side of the perforation direction of big footpath drift 15.Consequently, eliminated the whole not filling part M in the chamber 12, packing material in whole chamber 12.
Next, big footpath drift 15 is moved in chamber 12 withdraw from, the big footpath drift 15 that will be in the state that connects perforate reservations 2 is extracted from perforate reservations 2.
Next, inaccessible mould 11 and fixed mould 21 are decomposed, blank 1 is taken out in chamber 12.Afterwards, as required, remove in the hole 3 the formed overlap 2a of circumferential edges, thereby obtain desired perforate goods (preform) 6 as shown in figure 13.
So, in the perforate processing method of above-mentioned embodiment, by with a pair of big footpath and path drift 13,15, from the mutual reverse side of clamping perforate reservations 2 the perforate reservations 2 of the blank 1 in the chamber 12 that is configured in inaccessible mould 11 are pushed, thereby make 2 extruding of perforate reservations be expanded to the state of residual not filling part M in chamber 12, therefore can in chamber 12, push expansion to perforate reservations 2 with low load.
In addition, connect the perforate reservations 2 of blank 1, get the hole 2a of path in perforate reservations 2, so can get hole 2a with lower load by making path drift 13.And, the perforation action by this path drift 13, the part M1 among the not filling part M chamber 12 in, the material of the perforate reservations 2 of filling blank 1 in the front side of the perforation direction of path drift 13.
And then, connecting the perforate reservations 2 of the blank 1 of the hole 2a that has got path like this by making big footpath drift 15, the hole 2a of path is extended, leaves the hole 3 in big footpath on perforate reservations 2, so can get hole 3 with lower load.And, by the perforation action of this big footpath drift 15, the part M2 of the front side of the perforation direction of the big footpath drift 15 among the not filling part M in chamber 12, the material of the perforate reservations 2 of filling blank 1.Consequently, can eliminate the whole not filling part M in the chamber 12, packing material in whole chamber 12, thus prevent the generation of local lack of fill.
In addition, because the perforate processing method of present embodiment, do not comprise that stamping-out removes the operation of material of the perforate reservations 2 of blank 1, so the stock utilization height.
In addition, because the leading section 14 of path drift 13 forms the more and more thinner shape of front end, so can make path drift 13 connect the perforate reservations 2 of blank 1 with low load.And, because the side face of the leading section 14 of path drift 13, by forming, so the cone angle 1 of two-stage that can be by path drift 13, the setting of α 2 are adjusted to shaping load the value of regulation with two sections conical surface 14a, 14b that arrange towards the preceding extreme direction cone angle 1 of this path drift 13, mode that α 2 reduces gradually interimly.In addition, perforation operation by path drift 13, the perforate reservations 2 that can make blank 1 are to the extruding expansion effectively of the radial direction outside of this path drift 13, thereby can be in chamber among 12 the not filling part M in the part M1 of the front side of the perforation direction of path drift 13, fill the material of the perforate reservations 2 of blank 1 reliably.
In addition, because the leading section 16 of big footpath drift 15 is formed the more and more thinner shape of front end, so can make big footpath drift 15 connect the perforate reservations 2 of blank 1 with low load.And the side face of the leading section 16 of big footpath drift 15 is formed by one-level conical surface 16a, so the setting of cone angle beta 1 that can be by this conical surface 16a is adjusted to shaping load the value of regulation.In addition, perforation operation by big footpath drift 15, the perforate reservations 2 that can make blank 1 are to the extruding expansion effectively of the radial direction outside of this big footpath drift 15, thereby can be in chamber among 12 the not filling part M in the part M2 of the front side of the perforation direction of big footpath drift 15, fill the material of the perforate reservations 2 of blank 1 reliably.Therefore, can prevent the generation of local lack of fill reliably.
In addition, in each 13,15 slotting leading under the state in each self-corresponding drift inserting hole 17,17 of drift, between the side face of the side face of drift 13,15 and drift inserting hole 17,17, be formed with the gap 18,18 that the surplus material 2a of the perforate reservations 2 of blank 1 flows in the chamber 12, so this perforate processing method is included into the forging method of shunting mode.Therefore, can the material of the perforate reservations 2 of blank 1 be filled among the not filling part M in the chamber 12 with lower load.
In addition, because be formed with the 13a of weir portion, the 15a that the surplus material 2a that prevents to flow into gap 18 discharges to the outside, discharge to the outside of inaccessible mould 11 so can prevent surplus material 2a at the side face of each drift 13,15.
In addition, in the extruding expansion process, by with two drifts 13,15, so that discontiguous mode between the front end of this two drift 13,15, perforate reservations 2 to blank 1 are pushed, thereby can prevent breakage, the damage of the drift front end 14,16 that produces owing to the contact between the front end of two drifts 13,15.
In addition, in the perforate processing method of present embodiment, be included in the hole enlargement operation of in advance the perforate reservations 2 of blank 1 being carried out hole enlargement before the extruding expansion process.In the extruding expansion process, to in the hole enlargement operation by the perforate reservations 2 of the blank 1 of hole enlargement to keep being configured in the state in the chamber 12, with two drifts 13,15, suppress the both sides of direction from hole enlargement and push by guide way two projection pieces 24,24 determined perforate reservations 2.Therefore, then 2 enforcement perforates add man-hour to the perforate reservations in advance the perforate reservations 2 of blank 1 being carried out hole enlargement, can carry out this processing well by operating efficiency.
More than an embodiment of the invention are illustrated, but the present invention is not limited to the situation shown in the above-mentioned embodiment, can carry out various setting change.
For example, perforate processing method involved in the present invention and perforate processing unit (plant), be not limited to make and be used for the preform that vehicle is made with support, also can be used for making various industrial products preforms, for example can be used to make the connecting rod preform, also can be used for making gear preform with axis hole.
In addition, in the present invention, the perforate reservations 2 of blank 1 can also only be positioned at a place of the axial direction pars intermedia, axial direction one end etc. of blank 1.Certainly, in the present invention, the shape of blank 1 is not limited to bar-shaped, and the present invention can be applicable to the blank 1 of different shape.In addition, in the present invention, blank 1 can be made of for example extrusion, can also constitute by the rolled parts that utilizes the Pu Luopoze aluminum steel to cast the continuous casting rolled parts etc. of rolling manufacturing continuously, also can constitute by the blank that utilizes other manufacture method manufacturings.
This application, advocate that the Japanese patent application laid that proposed on May 26th, 2005 is willing to 2005-153770 number and the priority of No. 60/685,870, the U.S. Provisional Application of proposition on June 1st, 2005, its disclosed content has intactly constituted the application's a part.
Must recognize, in this employed term and expression, for being described, embodiments of the present invention use, can not be used to carry out limited explanation, can not get rid of feature item any shown here and explanation and be equal to replacement, also allow the various distortion in claim scope of the present invention.
Utilize possibility on the industry
The present invention can be applied to vehicle (motor vehicle, rail truck etc.) opening with support, connecting rod etc. The perforate processing method that the manufacturing of hole goods is used and perforate processing unit (plant).
Claims (14)
1. a perforate processing method is characterized in that, comprises following operation:
Perforate reservations to the blank in the chamber that is configured in inaccessible mould, different and a pair of big footpath and path drift that dispose to ground relatively with diameter, push from the mutual reverse side of clamping perforate reservations, thus the extruding of perforate reservations is expanded to the state of residual not filling part in chamber;
When the big footpath of releasing drift is to the extruding of the perforate reservations of blank or after removing, make the path drift connect the perforate reservations of blank; With
Path drift under the state that will be in the perforate reservations that connect blank makes big footpath drift connect the perforate reservations of blank when the perforate reservations are extracted or after extracting.
2. the perforate processing method of putting down in writing as claim 1, wherein, the leading section of path drift is formed the more and more thinner shape of front end, and the side face of the leading section of path drift, the multistage conical surface of being arranged by the mode that reduces with the preceding extreme direction cone angle towards this path drift gradually interimly forms.
3. the perforate processing method of putting down in writing as claim 2, wherein, when the progression of the conical surface of the side face of the leading section that will form the path drift is made as N level (wherein N 〉=2),
The leading section of big footpath drift is formed the more and more thinner shape of front end, and the side face of the leading section of big footpath drift, the conical surface by the mode progression that arrange, littler than N that reduces with the preceding extreme direction cone angle towards this big footpath drift gradually interimly forms, and is perhaps formed by the one-level conical surface.
4. the perforate processing method of putting down in writing as claim 1 wherein, is provided with each drift and plugs in drift inserting hole logical and that be communicated with chamber respectively in inaccessible mould,
Insert at each drift and to lead under the state in each self-corresponding drift inserting hole, between the side face of the side face of drift and drift inserting hole, be formed with the gap that the surplus material of the perforate reservations of blank flows in the chamber.
5. the perforate processing method of putting down in writing as claim 4 wherein, on the side face of drift, is provided with highlightedly outside the radial direction of this drift and prevents to flow into the weir portion of the surplus material in described gap to the outside discharge.
6. the perforate processing method of putting down in writing as claim 1, wherein, in described extruding expansion process, with the mutual reverse side of two drifts from the perforate reservations of clamping blank, so that the discontiguous each other mode of the front end of this two drift is pushed the perforate reservations of blank.
7. as each perforate processing method of putting down in writing in the claim 1 to 6, wherein, blank is bar-shaped, and the regulation position of the axial direction of this blank is set at the perforate reservations,
Be included in the preceding operation of in advance the perforate reservations of blank being carried out hole enlargement of described extruding expansion process by the upsetting processing unit (plant),
Described upsetting processing unit (plant), possess: the fixed mould that is connected with inaccessible mould and blank is fixed, have the perforate reservations of blank are inserted logical guide way and the pressurization drift that is held in the inserting hole of buckling blocked state, and position in mutual reverse side leading section, the clamping inserting hole of guide way, be provided with a pair of hole enlargement outstanding on the axial direction of guide way respectively integratedly and suppress to use projection piece
In described hole enlargement operation, the perforate reservations that will be fixed in the blank of fixed mould are configured in the chamber, and the perforate reservations of blank are inserted logical remaining in the inserting hole of guide way, then, thereby the pressurization drift is moved with this pressurization drift to pressurize in the axial direction to the perforate reservations of blank, guide way is moved on the direction opposite with the moving direction of pressurization drift, make the perforate reservations of the blank that between the leading section of guide way and fixed mould, exposes thus, suppress under the state of hole enlargement at the contact site that contacts with the guide way projection piece these perforate reservations, hole enlargement in chamber
In described extruding expansion process, to blank by hole enlargement the perforate reservations, keep being configured in the state in the chamber, with two drifts from pushing by the both sides of the hole enlargement inhibition direction of the determined perforate reservations of guide way two projection pieces.
8. perforate fabricated product, it is by obtaining as the perforate processing method that each is put down in writing in the claim 1 to 7.
9. perforate processing unit (plant), it is characterized in that, possess: inaccessible mould and a pair of big footpath and path drift with chamber, this a pair of drift mutually relatively is configured in the mutual reverse side that clamping is in the perforate reservations of the blank under the state in the chamber that is configured in inaccessible mould to ground, diameter is different
Perforate reservations to the blank in the chamber that is configured in inaccessible mould, push from the mutual reverse side of clamping perforate reservations with two drifts, thereby extruding expansion perforate reservations, then, when the big footpath of releasing drift is to the extruding of the perforate reservations of blank or after removing, make the path drift connect the perforate reservations of blank, then, path drift under the state that will be in the perforate reservations that connect blank makes big footpath drift connect the perforate reservations of blank when the perforate reservations are extracted or after extracting.
10. the perforate processing unit (plant) of putting down in writing as claim 9, wherein, the leading section of path drift is formed the more and more thinner shape of front end, and the side face of the leading section of path drift, the multistage conical surface of being arranged by the mode that reduces with the preceding extreme direction cone angle towards this path drift gradually interimly forms.
11. the perforate processing unit (plant) of putting down in writing as claim 10, wherein, when the progression of the conical surface of the side face of the leading section that will form the path drift is made as N level (wherein N 〉=2),
The leading section of big footpath drift is formed the more and more thinner shape of front end, and the side face of the leading section of big footpath drift, the conical surface by the mode progression that arrange, littler than N that reduces with the preceding extreme direction cone angle towards this big footpath drift gradually interimly forms, and is perhaps formed by the one-level conical surface.
12. the perforate processing unit (plant) as claim 9 is put down in writing wherein, is provided with each drift and plugs in drift inserting hole logical and that be communicated with chamber respectively in inaccessible mould,
Insert at each drift and to lead under the state in each self-corresponding drift inserting hole, between the side face of the side face of drift and drift inserting hole, be formed with the gap that the surplus material of the perforate reservations of blank flows in the chamber.
13. the perforate processing unit (plant) as claim 12 is put down in writing wherein, on the side face of drift, is provided with highlightedly outside the radial direction of this drift and prevents to flow into the weir portion of the surplus material in described gap to the outside discharge.
14. as each perforate processing unit (plant) of putting down in writing in the claim 9 to 13, wherein, blank is bar-shaped, and the regulation position of the axial direction of this blank is set at the perforate reservations,
Possess the upsetting processing unit (plant) that before the perforate reservations of blank being pushed expansion, the perforate reservations of blank is carried out hole enlargement,
Described upsetting processing unit (plant), possess: the fixed mould that is connected with inaccessible mould and blank is fixed, have the perforate reservations of blank are inserted the logical guide way that is held in the inserting hole of buckling blocked state, to inserting the pressurization drift that the perforate reservations lead to the blank in the inserting hole of guide way are pressurizeed in the axial direction, with the drift drive unit that guide way is moved on the direction opposite with the moving direction of pressurization drift, and at the leading section of guide way, the position of the mutual reverse side of clamping inserting hole, be provided with a pair of hole enlargement outstanding on the axial direction of guide way respectively integratedly and suppress to use projection piece
The projection piece of guide way, the part of the side face of perforate reservations and the contacts side surfaces of projection piece when the hole enlargement of the perforate reservations of blank, the contact site that contacts with projection piece to the perforate reservations suppresses hole enlargement thus.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP153770/2005 | 2005-05-26 | ||
| JP2005153770 | 2005-05-26 | ||
| US68587005P | 2005-06-01 | 2005-06-01 | |
| US60/685,870 | 2005-06-01 | ||
| PCT/JP2006/310418 WO2006126622A1 (en) | 2005-05-26 | 2006-05-25 | Punching method and punching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101184562A true CN101184562A (en) | 2008-05-21 |
| CN101184562B CN101184562B (en) | 2011-06-22 |
Family
ID=39449439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800182821A Expired - Fee Related CN101184562B (en) | 2005-05-26 | 2006-05-25 | Method and apparatus for hole punching |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPWO2006126622A1 (en) |
| CN (1) | CN101184562B (en) |
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| CN102501038A (en) * | 2011-09-27 | 2012-06-20 | 张志通 | Processing method for feed inlet of die-casting mold |
| CN102574196A (en) * | 2009-08-26 | 2012-07-11 | 山阳特殊制钢株式会社 | Method for manufacturing mechanical part excellent in rolling fatigue life |
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| CN103987475A (en) * | 2011-12-09 | 2014-08-13 | 山阳特殊制钢株式会社 | Method for manufacturing mechanical parts with superior rolling fatigue life |
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2006
- 2006-05-25 CN CN2006800182821A patent/CN101184562B/en not_active Expired - Fee Related
- 2006-05-25 JP JP2007517884A patent/JPWO2006126622A1/en active Pending
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| CN102989965B (en) * | 2011-09-19 | 2015-09-09 | 上海交大中京锻压有限公司 | A kind of automobile besides-star wheel forging die structure |
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| CN102501038A (en) * | 2011-09-27 | 2012-06-20 | 张志通 | Processing method for feed inlet of die-casting mold |
| CN103987475A (en) * | 2011-12-09 | 2014-08-13 | 山阳特殊制钢株式会社 | Method for manufacturing mechanical parts with superior rolling fatigue life |
| CN103357692A (en) * | 2013-07-15 | 2013-10-23 | 西南铝业（集团）有限责任公司 | Breathable perforation die |
| CN103357692B (en) * | 2013-07-15 | 2015-04-29 | 西南铝业（集团）有限责任公司 | Breathable perforation die |
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| CN111745115B (en) * | 2020-07-21 | 2022-09-30 | 山东成通锻造有限公司 | Forging die and method for forging sprocket body |
| CN118254249A (en) * | 2024-05-31 | 2024-06-28 | 江西富龙皇冠实业有限公司 | Automatic positioning and trimming equipment for solid wood furniture boards |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2006126622A1 (en) | 2008-12-25 |
| CN101184562B (en) | 2011-06-22 |
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