CN105983638A - Spiral bevel gear forging device - Google Patents
Spiral bevel gear forging device Download PDFInfo
- Publication number
- CN105983638A CN105983638A CN201510040450.8A CN201510040450A CN105983638A CN 105983638 A CN105983638 A CN 105983638A CN 201510040450 A CN201510040450 A CN 201510040450A CN 105983638 A CN105983638 A CN 105983638A
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- China
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- die
- bevel gear
- spiral bevel
- gear forging
- forging apparatus
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Abstract
A spiral bevel gear forging device is used for forming a blank. The spiral bevel gear forging device includes a first die unit and a releasing unit. The first die unit includes a first die core and a first punch rod which is movably arranged through the first die core, wherein one end of the first punch rod is pressed against the bottom of the blank. The releasing unit includes at least one push against mechanism for driving the first die core to rotate with the first punch rod as a shaft, and a driving mechanism, wherein the driving mechanism can push the push against mechanism and the first punch rod to allow the push against mechanism to drive the first die core and the first punch rod to rotate so as to push out the blank. The integrality of the first punch rod and the first die core will not be destroyed in design.
Description
Technical field
The present invention relates to a kind of forging apparatus, particularly relate to one and stock is shaped to spiral umbrella
The forging apparatus of gear.
Background technology
The molding of spiral bevel gear in the past is mostly to be processed as master with machine cut, but this kind adds
Work mode can waste more material, and needs complicated processing procedure and tediously long process time, effect
Rate is relatively low, and because working angles makes metallic fiber cut-off and discontinuous, therefore the finished product processed
Structural strength is relatively low.Typically dealer is many carries out extrusion forming in forging mode, yet with spiral shell
Rotation bevel gear has a screw serrated form of negative draft angle, therefore when withdrawing pattern cannot direct demold, make
Obtain screw serrated form to need additionally with Tool in Cutting, cause such as the shortcoming of aforementioned machining.
And propose at present the forging mode of direct demold to be broadly divided into two kinds, one is to rotate
The spiral bevel gear that jumper bar pushing and withstanding machine so that it is the teeth groove in die rotates de-
Mould, but this kind of mode need to arrange such as the transmission components such as gear on jumper bar, and also need to coordinate motor,
The assemblies such as tooth bar or refining bar, configuration is complicated and destroys jumper bar intensity, and another kind of method is the most right
Jumper bar is processed to keep jumper bar intensity, change rotate die and with jumper bar spiral bevel gear ejected with
The demoulding, though but this kind of mode can keep jumper bar intensity, need separately die to be bored a hole, dig
Grooves etc. are processed, and destroy die intensity and closure on the contrary, still need to improve.
Summary of the invention
It is an object of the invention to provide a kind of spiral bevel gear holding jumper bar and die integrity
Forging apparatus.
Spiral bevel gear forging apparatus of the present invention, in order to one stock of molding, this spiral bevel gear
Forging apparatus comprises first die unit, and a demoulding unit, this first die unit
Including one in order to put the first die of this stock, and one wears this first mould movably
The first jumper bar bottom core and this stock of one end contact, this demoulding unit interlocks this first die,
It is characterized in that: this spiral bevel gear forging apparatus also comprises at least one can drive this first mould
The pushing and pressing mechanism that core rotates with this first jumper bar for axle, and a drive mechanism, this drive mechanism
Can move between a shaping position and an ejection position controllably, when this drive mechanism by
This shaping position, towards when moving between this ejection position, can promote this pushing and pressing mechanism and this first punching
Bar, makes this pushing and pressing mechanism drive this first die to rotate relative to this first jumper bar, and make this
This stock is ejected this first die by one jumper bar.
It is preferred that said spiral bevel gear forging apparatus, wherein this drive mechanism has one and holds
Connecing the die pad of this first jumper bar, this pushing and pressing mechanism has one and this first die can be promoted to rotate
The first slide block, and on a die pad being arranged at this drive mechanism and this first slide block of contact
The second slide block.
It is preferred that said spiral bevel gear forging apparatus, wherein this first slide block has a basis
Body, and first oblique surface being arranged on this body and sticking to this second slide block, should
Second slide block has second oblique surface sticking to this first oblique surface.
It is preferred that said spiral bevel gear forging apparatus, wherein this first die outer rim is convexly equipped with
Multiple driving sections in profile of tooth, this first slide block also have one be arranged on this body and with
The tooth-strip part of described driving section engagement.
It is preferred that said spiral bevel gear forging apparatus, wherein this first jumper bar has a card
It is placed in bottom this stock to limit the positioning end that this stock rotates.
It is preferred that said spiral bevel gear forging apparatus, wherein this first die unit also includes
The first die holder that one this first die of confession is arranged, and two ends this first jumper bar of contact respectively
And the first elastic component of this first die.
It is preferred that said spiral bevel gear forging apparatus, wherein this spiral bevel gear forging apparatus
Also comprise second die unit involutory with this first die unit, this second die unit
Including second die holder involutory with this first die holder, one be arranged in this second die holder also
Second die involutory with this first die, one be arranged at this second die holder in and wear this
Second jumper bar of two dies, and one be arranged in this second die holder and two ends contact respectively this
Two die holders and the second elastic component of this second die.
It is preferred that said spiral bevel gear forging apparatus, wherein this first cunning of this pushing and pressing mechanism
Block is arranged in this first die holder, and this pushing and pressing mechanism also has one and is arranged on this first slide block
Return unit.
It is preferred that said spiral bevel gear forging apparatus, wherein this drive mechanism also has at least
One two ends this die pad of contact and the playback elastic component of this first die holder respectively.
It is preferred that said spiral bevel gear forging apparatus, wherein this first die unit also includes
At least one is placed between this first die holder and this first die, alleviate this first die and this
The revolving part of frictional force between one die holder, this drive mechanism also has one and is arranged on this die pad
Knock-pin, this knock-pin wears this first die holder towards the direction away from this first jumper bar.
The beneficial effects of the present invention is: by this pushing and pressing mechanism can make this first die with this
One jumper bar is that axle rotates, and then this stock ejects this first die completes the demoulding, in design
It is not required to destroy this first jumper bar and the integrity of this first die.
Accompanying drawing explanation
Fig. 1 is a sectional view, and an enforcement of spiral bevel gear forging apparatus of the present invention is described
Example；
Fig. 2 is a top view, and first die of the present embodiment and a pushing and pressing machine are described
Structure；
Fig. 3 is a partial enlarged drawing, in order to aid in illustrating in Fig. 1 A at imagination wire frame；
Fig. 4 is a sectional view, and the matched moulds forming process in the present embodiment is described；And
Fig. 5 is a sectional view, and the knockout course in the present embodiment is described.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment the present invention is described in detail.
Refering to Fig. 1 and Fig. 2, for an embodiment of spiral bevel gear forging apparatus of the present invention,
And in the present embodiment, this spiral bevel gear forging apparatus 1 is to adopt vertical type to arrange to facilitate
Bright, but be not limited.This spiral bevel gear forging apparatus 1, comprises a first mould list
2, second die unit 3 involutory with this first die unit 2 of unit, and a setting
Demoulding unit 4 in this first die unit 2.This first die unit 2 includes one
The first die 22, one that one die holder 21, is arranged in this first die holder 21 may move
Wear 23, two ends of the first jumper bar this first jumper bar of contact respectively of this first die 22
23 and the first elastic component 24 of this first die 22, and three be placed in this first die holder 21
And between this first die 22, alleviate the revolving part 25 of frictional force.This first die 22 outer rim be as
It is convexly equipped with multiple driving section 221 in profile of tooth as shown in Figure 2.This first jumper bar 23 has necessarily
Position end 231, this positioning end 231 is not circular, and can be ellipse, rectangle, triangle,
Or other shape.Described revolving part 25 is bearing in the present embodiment, but is not limited.
This second die unit 3 include second die holder 31 involutory with this first die holder 21,
In one is arranged at this second die holder 31 and second die 32 involutory with this first die 22,
In one is arranged at this second die holder 31 and wear the second jumper bar 33 of this second die 32, and
In one is arranged at this second die holder 31 and two ends this second die holder 31 of contact respectively and this second
Second elastic component 34 of die 32.
This demoulding unit 4 includes a drive mechanism 41, and two pushing and pressing mechanisms 42.This drives
Motivation structure 41 have one be arranged at this first die holder 21 in and accept this first jumper bar 23
Die pad 411, one is arranged at this die pad 411 face in contrast to this first jumper bar 23
The knock-pin 412 of this first die holder 21 above and is worn towards the direction away from this first jumper bar 23,
And two two ends this die pad 411 of contact and the playback elastic components of this first die holder 21 respectively
413.This knock-pin 412 connects the power source such as cylinder or oil hydraulic cylinder and can be relative to this first mould
Seat 21 moves up and down.Each pushing and pressing mechanism 42 has an one end and this first die 22
421, two ends of the first slide block of being meshed of described driving section 221 contact respectively this first
Slide block 421 and the second slide block 422 of this die pad 411, and one wear this first die holder 21
And it is fixed on the return unit 423 on this first slide block 421.Described first slide block 421 is such as figure
It is spaced and be arranged in parallel shown in 2.Fig. 3 is the partial enlarged drawing of A at Fig. 1 imagination wire frame.
Each first slide block 421 has a body 424, and is arranged on this body 424
And engage the tooth-strip part 425 of described driving section 221, and one is arranged on this body 424
And stick to the first oblique surface 426 of this second slide block 422 as illustrated in fig. 3.This second slide block
422 have second oblique surface 427 sticking to this first oblique surface 426 as illustrated in fig. 3.
Refering to Fig. 1 and Fig. 4, the operating procedure of the present invention is as follows: first this stock B is inserted tool
In having first die 22 of screw serrated form feature of negative draft angle, then by this second die unit 3
Lower pressure makes it involutory with this first die unit 2, now this first die holder 21 and this second mould
Seat about 31 is the most involutory.This first die 22 and this second die 32 are involutory.Now should
First jumper bar 23 and the second jumper bar 33 are bottom and the tops laying respectively at this stock B.Then
Carry out forging molding, drive this second die unit 3 to press under continuing, make this second jumper bar 33
It is pressed down against this stock B and the first jumper bar 23 with upwards contact this stock B coordinates, extruding
This stock B makes it deform, and fills uniformly with in this first die 22, and then molds
Flute profile feature as shown in Figure 4 and be shaped to a spiral bevel gear.At this second die unit
During 3 times pressures, this second elastic component 34 can by the pushing and pressing of this second die holder 31 quilt
Compression, and then produce the elasticity forcing this second die 32 to be close to this first die 22 partially
Shifting power, make this first die 22 and the second die 32 during forging molding be mutually tight against
And it is airtight.
Refering to Fig. 2, Fig. 3, and Fig. 5, after completing forging molding, by this second die unit
3 (see Fig. 4) upwards reset, and start power source (not shown) and make this drive mechanism 41 by one
Shaping position as shown in Figure 4 moves to an ejection position as shown in Figure 5, moves at this
During, the knock-pin 412 of this drive mechanism 41 promotes this die pad 411 to move up,
And drive described second slide block 422 and this first jumper bar 23 upwards pushing and withstanding, make described second to slide
Described second oblique surface 427 of block 422 described first oblique with described first slide block 421 respectively
Guide face 426 produces Relative sliding, and the direction making described first slide block 421 towards each other close is moved
Dynamic, by intermeshing described tooth-strip part 425 and described driving section 221, make this first mould
Core 22 rotates for axle with this first jumper bar 23 along the flute profile characteristic direction of this stock B.And be somebody's turn to do
The positioning end 231 of the first jumper bar 23 is the bottom being placed in this stock B, and by this location
The shape of end 231 makes the stock B being inserted to rotate, to coordinate this first die 22
This stock B is ejected this first die 22 and completes stripping action by spinning movement.In this driving
Mechanism 41 is moved to this ejection position by this shaping position, this first elastic component 24,
Described playback elastic component 413, and described return unit 423 compressed, and complete in stripping action
Make this first jumper bar 23, this die pad 411 after one-tenth respectively, and described first slide block 421 resets.
This location mechanism can avoid this first die 22 cannot go back to after rotating in situ, and can
Processing without recalibration, lifting processing precision is the most time-consuming the most next time.
Shape is increasingly complex, chi only to need a passage to mold by the mechanism of rotating stripping demoulding
Very little more accurate forging, and solve negative draft angle forging and be difficult to the problem of the demoulding, and it is not required to volume
Outer machining and can save material, reduce molding passage and reduce cost.And at forging molding
Time this first die 22 and this second die 32 be air-tight state, therefore forging can reduce hair in a large number
Bian Liang, metal streamline along forging contoured profile, thus can avoid forging streamline end to expose,
Improve the mechanical performance of forging.
In sum, by described first slide block 421 and the gearing of described second slide block 422,
This first die 22 can be made to rotate for axle with this first jumper bar 23, and then this stock B is ejected
This first die 22 completes the demoulding, be not required in design to destroy this first jumper bar 23 and this first
The integrity of die 22, promotes intensity and degree of accuracy, and the negative draft angle of solution is difficult to the demoulding
Problem, therefore really can reach the purpose of the present invention.
Claims (10)
1. a spiral bevel gear forging apparatus, in order to one stock of molding, this spiral umbrella
Gear forging device comprises first die unit, and a demoulding unit, this first mould
Tool unit include one in order to the first die putting this stock, and one wears movably
The first jumper bar bottom this first die and this stock of one end contact, this demoulding unit interlocks should
First die, it is characterised in that: this spiral bevel gear forging apparatus also comprises at least one can
Drive the pushing and pressing mechanism that this first die rotates for axle, and a driving machine with this first jumper bar
Structure, this drive mechanism can move controllably between a shaping position and an ejection position,
When this drive mechanism by this shaping position towards when moving between this ejection position, these pushing and pressing can be promoted
Mechanism and this first jumper bar, make this pushing and pressing mechanism drive this first die relative to this first punching
Bar rotates, and makes this first jumper bar that this stock to eject this first die.
Spiral bevel gear forging apparatus the most according to claim 1, it is characterised in that:
This drive mechanism has a die pad accepting this first jumper bar, and this pushing and pressing mechanism has one
Individual the first slide block promoting this first die to rotate, and one be arranged at this drive mechanism
On die pad and the second slide block of this first slide block of contact.
Spiral bevel gear forging apparatus the most according to claim 2, it is characterised in that:
This first slide block has a body, and one be arranged on this body and stick to this
First oblique surface of two slide blocks, this second slide block has one and sticks to the of this first oblique surface
Two oblique surfaces.
Spiral bevel gear forging apparatus the most according to claim 3, it is characterised in that:
This first die outer rim is convexly equipped with multiple driving section in profile of tooth, and this first slide block also has one
The individual tooth-strip part being arranged on this body and engage with described driving section.
Spiral bevel gear forging apparatus the most according to claim 1, it is characterised in that:
This first jumper bar has one and is placed in bottom this stock to limit the location that this stock rotates
End.
Spiral bevel gear forging apparatus the most according to claim 2, it is characterised in that:
This first die unit also includes the first die holder that this first die of a confession is arranged, and one
Two ends this first jumper bar of contact and the first elastic component of this first die respectively.
Spiral bevel gear forging apparatus the most according to claim 6, it is characterised in that:
This spiral bevel gear forging apparatus also comprises second mould involutory with this first die unit
Tool unit, this second die unit include second die holder involutory with this first die holder,
One be arranged in this second die holder and second die involutory with this first die, one set
It is placed in this second die holder and wears the second jumper bar of this second die, and one is arranged at this
In second die holder and two ends this second die holder of contact respectively and the second elasticity of this second die
Part.
Spiral bevel gear forging apparatus the most according to claim 7, it is characterised in that:
This first slide block of this pushing and pressing mechanism is arranged in this first die holder, and this pushing and pressing mechanism also has
One return unit being arranged on this first slide block.
Spiral bevel gear forging apparatus the most according to claim 2, it is characterised in that:
This drive mechanism also has at least one two ends respectively this die pad of contact and this first die holder
Playback elastic component.
Spiral bevel gear forging apparatus the most according to claim 6, it is characterised in that:
This first die unit also includes that at least one is placed in this first die holder and this first die
Between, alleviate the revolving part of frictional force, this drive mechanism between this first die and this first die holder
Also having a knock-pin being arranged on this die pad, this knock-pin is towards away from this first punching
The direction of bar wears this first die holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510040450.8A CN105983638B (en) | 2015-01-27 | 2015-01-27 | Spiral bevel gear forging apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510040450.8A CN105983638B (en) | 2015-01-27 | 2015-01-27 | Spiral bevel gear forging apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105983638A true CN105983638A (en) | 2016-10-05 |
| CN105983638B CN105983638B (en) | 2018-06-26 |
Family
ID=57034102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510040450.8A Active CN105983638B (en) | 2015-01-27 | 2015-01-27 | Spiral bevel gear forging apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105983638B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106583558A (en) * | 2016-12-21 | 2017-04-26 | 宁波市北仑怡健模具制造有限公司 | Automobile gear die |
| CN109420733A (en) * | 2017-08-28 | 2019-03-05 | 丰田自动车株式会社 | The forging forming method of gear and the forge forming device of gear |
| CN111069428A (en) * | 2018-10-22 | 2020-04-28 | 财团法人金属工业研究发展中心 | Composite press forming device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4050283A (en) * | 1974-06-20 | 1977-09-27 | Bayerisches Leichtmetallwerk Graf Blucher Von Wahlstatt Kg | Method and apparatus for forging bevel gears |
| JP2542912B2 (en) * | 1988-08-30 | 1996-10-09 | 本田技研工業株式会社 | Gear teeth ironing method |
| EP0891824A1 (en) * | 1996-11-11 | 1999-01-20 | Honda Giken Kogyo Kabushiki Kaisha | Hot forging device for bevel gear |
| JP2002001479A (en) * | 2000-06-19 | 2002-01-08 | Akira Yoshida | Manufacturing device for spiral bevel gear |
| CN1511069A (en) * | 2001-03-29 | 2004-07-07 | ���մ��� | Forging method and apparatus |
| CN101284299A (en) * | 2008-05-21 | 2008-10-15 | 华中科技大学 | Gear-box planetary gear shaping die |
-
2015
- 2015-01-27 CN CN201510040450.8A patent/CN105983638B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4050283A (en) * | 1974-06-20 | 1977-09-27 | Bayerisches Leichtmetallwerk Graf Blucher Von Wahlstatt Kg | Method and apparatus for forging bevel gears |
| JP2542912B2 (en) * | 1988-08-30 | 1996-10-09 | 本田技研工業株式会社 | Gear teeth ironing method |
| EP0891824A1 (en) * | 1996-11-11 | 1999-01-20 | Honda Giken Kogyo Kabushiki Kaisha | Hot forging device for bevel gear |
| JP2002001479A (en) * | 2000-06-19 | 2002-01-08 | Akira Yoshida | Manufacturing device for spiral bevel gear |
| CN1511069A (en) * | 2001-03-29 | 2004-07-07 | ���մ��� | Forging method and apparatus |
| CN101284299A (en) * | 2008-05-21 | 2008-10-15 | 华中科技大学 | Gear-box planetary gear shaping die |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106583558A (en) * | 2016-12-21 | 2017-04-26 | 宁波市北仑怡健模具制造有限公司 | Automobile gear die |
| CN109420733A (en) * | 2017-08-28 | 2019-03-05 | 丰田自动车株式会社 | The forging forming method of gear and the forge forming device of gear |
| CN111069428A (en) * | 2018-10-22 | 2020-04-28 | 财团法人金属工业研究发展中心 | Composite press forming device |
| CN111069428B (en) * | 2018-10-22 | 2021-08-10 | 财团法人金属工业研究发展中心 | Composite press forming device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105983638B (en) | 2018-06-26 |
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