CN105983638B - Spiral bevel gear forging apparatus - Google Patents
Spiral bevel gear forging apparatus Download PDFInfo
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- CN105983638B CN105983638B CN201510040450.8A CN201510040450A CN105983638B CN 105983638 B CN105983638 B CN 105983638B CN 201510040450 A CN201510040450 A CN 201510040450A CN 105983638 B CN105983638 B CN 105983638B
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- mode
- bevel gear
- jumper bar
- spiral bevel
- die
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Abstract
A kind of spiral bevel gear forging apparatus, to be molded an embryo material, which includes first die unit and a demoulding unit.First die unit includes first mode and first jumper bar for movably wearing first mode and one end contact embryo material bottom.The demoulding unit includes at least one pushing and pressing mechanism that first mode is driven to be rotated using first jumper bar as axis and a driving mechanism.The driving mechanism can push the pushing and pressing mechanism and first jumper bar, and the pushing and pressing mechanism is made to drive first mode using first jumper bar as axis rotates and ejects the embryo material.It is not required to destroy first jumper bar and the integrality of first mode in design.
Description
Technical field
The present invention relates to a kind of forging apparatus, are filled more particularly to a kind of forging that embryo material is shaped to spiral bevel gear
It puts.
Background technology
The molding of previous spiral bevel gear be mostly processed with machine cut based on, however such processing method can waste compared with
More materials, and complicated processing procedure and interminable process time are needed, it is less efficient, and because working angles are cut metallic fiber
It is disconnected and discontinuous, therefore the finished product structure intensity processed is relatively low.General dealer is mostly press-formed with forging method, however
Since spiral bevel gear has the screw serrated form of negative draft angle, can not directly be demoulded in draft so that screw serrated form needs
In addition it with Tool in Cutting, causes such as the shortcomings that aforementioned machining.
And the forging method for proposing directly to demould at present is broadly divided into two kinds, one kind is to rotate jumper bar and ejection processing
The spiral bevel gear of completion makes its tooth socket rotating stripping demoulding in mode, but such mode need to set such as gear on jumper bar
Transmission components are waited, and also need the components such as cooperation motor, rack or refining item, configuration is complicated and destroys jumper bar intensity, and another kind side
Method is jumper bar not to be processed to keep jumper bar intensity, changes rotation mode and ejects to demould by spiral bevel gear with jumper bar, however
Though such mode can keep jumper bar intensity, need, separately to mode into processing such as eleven punch 11, groovings, to destroy mode intensity and envelope instead
Closing property still needs to improve.
Invention content
The purpose of the present invention is to provide a kind of spiral bevel gear forging apparatus for holding jumper bar and mode integrality.
Spiral bevel gear forging apparatus of the present invention, to be molded an embryo material, which includes one
A first die unit and a demoulding unit, first die unit include one to put the first mode of the embryo material,
And first jumper bar for movably wearing first mode and one end contact embryo material bottom, the demoulding unit interlock this
One mode, it is characterised in that：The spiral bevel gear forging apparatus also comprising it is at least one drive first mode with this first
Jumper bar can be controllably in a shaping position and one for the pushing and pressing mechanism and a driving mechanism, the driving mechanism of axis rotation
Moved between a ejection position, when the driving mechanism by the shaping position towards when being moved between the ejection position, the pushing and pressing machine can be pushed
Structure and first jumper bar make the pushing and pressing mechanism that first mode be driven to be rotated relative to first jumper bar, and make first jumper bar
The embryo material is ejected into first mode.
Preferably, there are one accept first jumper bar for said spiral bevel gear forging apparatus, the wherein driving mechanism tool
Die pad, the pushing and pressing mechanism tool there are one can push first mode rotate the first sliding block and one to be set to the driving machine
On the die pad of structure and the second sliding block of contact first sliding block.
Preferably, there are one body part and a settings for said spiral bevel gear forging apparatus, wherein first sliding block tool
In on the body part and sticking to the first oblique surface of second sliding block, there are one sticks to first oblique surface to second sliding block tool
Second oblique surface.
Preferably, said spiral bevel gear forging apparatus, wherein the first mode outer rim are convexly equipped with multiple biographies in tooth form
Dynamic portion, first sliding block also have that there are one the tooth-strip parts for being set on the body part and being engaged with the driving section.
Preferably, there are one be placed in the embryo material bottom to said spiral bevel gear forging apparatus, wherein first jumper bar tool
To limit the positioning end of embryo material rotation.
Preferably, said spiral bevel gear forging apparatus, wherein first die unit further include a confession first mould
First die holder of benevolence setting and the first elastic component of both ends difference contact first jumper bar and first mode.
Preferably, said spiral bevel gear forging apparatus, wherein the spiral bevel gear forging apparatus are also comprising one and are somebody's turn to do
Second die unit of the first die unit pairing, second die unit include second mould with the first die holder pairing
Seat, one be set in second die holder and the second mode with the first mode pairing, one be set in second die holder
And wear the second jumper bar of second mode and one be set in second die holder and both ends difference contact second die holder and
Second elastic component of second mode.
Preferably, first sliding block of said spiral bevel gear forging apparatus, wherein the pushing and pressing mechanism be set to this first
In die holder, which also has that there are one be set to return unit on first sliding block.
Preferably, said spiral bevel gear forging apparatus, the wherein driving mechanism also there are at least one both ends to push up respectively
Return elastic piece to the die pad and first die holder.
Preferably, said spiral bevel gear forging apparatus, wherein first die unit further include at least one be placed in
Between first die holder and first mode, mitigate the revolving part of frictional force between first mode and first die holder, the driving machine
Structure also has there are one being set to knock-pin on the die pad, the knock-pin towards the direction far from first jumper bar wear this first
Die holder.
The beneficial effects of the present invention are：First mode can be made to be revolved by axis of first jumper bar by the pushing and pressing mechanism
Turn, and then the embryo material is ejected into first mode and completes demoulding, be not required to destroy first jumper bar and first mode in design
Integrality.
Description of the drawings
Fig. 1 is a sectional view, illustrates one embodiment of spiral bevel gear forging apparatus of the present invention；
Fig. 2 is a vertical view, illustrates first mode and a pushing and pressing mechanism of the present embodiment；
Fig. 3 is a partial enlarged view, to aid in illustrating in Fig. 1 A at imaginary wire frame；
Fig. 4 is a sectional view, illustrates the molding forming process in the present embodiment；And
Fig. 5 is a sectional view, illustrates the knockout course in the present embodiment.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and embodiments.
It is one embodiment of spiral bevel gear forging apparatus of the present invention, and in the present embodiment refering to Fig. 1 and Fig. 2, it should
Spiral bevel gear forging apparatus 1 is to adopt vertical type setting to facilitate explanation, and but not limited to this.The spiral bevel gear forging apparatus
1, it is set to comprising first die unit 2, one with the second die unit 3 of 2 pairing of the first die unit and one
Demoulding unit 4 in first die unit 2.First die unit 2 including first die holder 21, one be set to this
The first mode 22, one in one die holder 21 movably wears 23, both ends difference of the first jumper bar of first mode 22
First elastic component 24 of contact first jumper bar 23 and first mode 22 and three be placed in first die holder 21 and this first
Mitigate the revolving part 25 of frictional force between mode 22.First mode, 22 outer rim be convexly equipped with as illustrated in fig. 2 it is multiple in tooth form
Driving section 221.First jumper bar 23 have a positioning end 231, the positioning end 231 for circle, and can be ellipse, rectangle,
Triangle or other shapes.The revolving part 25 is in the present embodiment bearing, and but not limited to this.
Second die unit 3 include one and 21 pairing of the first die holder the second die holder 31, one be set to this
In two die holders 31 and be set in second die holder 31 with the second mode 32, one of 22 pairing of the first mode and wear this
Second jumper bar 33 of two modes 32 and one are set in second die holder 31 and both ends difference contact second die holder 31 and should
Second elastic component 34 of the second mode 32.
The demoulding unit 4 includes a driving mechanism 41 and two pushing and pressing mechanisms 42.There are one set the driving mechanism 41 tool
The die pad 411, one for being placed in first die holder 21 and accepting first jumper bar 23 is set to the die pad 411 in contrast to this
On one face of the first jumper bar 23 and towards far from first jumper bar 23 direction wear first die holder 21 knock-pin 412 and
The return elastic piece 413 of two both ends difference contact die pads 411 and first die holder 21.The knock-pin 412 connects cylinder
Or the power sources such as oil hydraulic cylinder and can be moved up and down relative to first die holder 21.Each pushing and pressing mechanism 42 tool there are one one end with
The both ends difference contact of the first sliding block for being meshed of the driving section 221 of first mode 22 421, one first sliding block 421
And the die pad 411 the second sliding block 422 and one wear first die holder 21 and be fixed on answering on first sliding block 421
Position part 423.First sliding block 421 is to be spaced and be arranged in parallel as illustrated in fig. 2.Fig. 3 is the office of A at Fig. 1 imagination wire frames
Portion's enlarged drawing.There is each first sliding block 421 body part 424, one to be set on the body part 424 and engage the biography
The tooth-strip part 425 in dynamic portion 221 and one are set on the body part 424 and stick to second sliding block 422 as illustrated in fig. 3
First oblique surface 426.There are one the second oblique surfaces for sticking to first oblique surface 426 as illustrated in fig. 3 for second sliding block 422 tool
427。
Refering to Fig. 1 and Fig. 4, operating procedure of the invention is as follows：First by helical tooth of the embryo material B mergings with negative draft angle
In first mode 22 of shape feature, then by second die unit 3 pushing make itself and 2 pairing of the first die unit, at this time should
First die holder 21 and second die holder mutual pairing about 31.First mode 22 and 32 pairing of the second mode.At this time this
One jumper bar 23 and the second jumper bar 33 are the bottom and top for being located at embryo material B respectively.Then carry out forging molding, drive this second
Die unit 3 continues to push, make second jumper bar 33 be pressed down against embryo material B and with the first jumper bar of upward contact embryo material B
23 cooperations, squeezing embryo material B makes its deformation, and fills uniformly in first mode 22, and then mold as shown in Figure 4
Flute profile feature and be shaped to a spiral bevel gear.During second die unit 3 pushes, 34 meeting of the second elastic component
It is compressed by the pushing and pressing of second die holder 31, and then generates one and second mode 32 is forced to be close to first mode 22
Resilient bias, make 22 and second mode 32 of the first mode be during forging molding mutually tight against and it is closed.
Refering to Fig. 2, Fig. 3 and Fig. 5, after forging molding is completed, which is resetted upwards,
And starting power source (not shown) makes the driving mechanism 41 be moved to such as Fig. 5 institute by a shaping position as shown in Figure 4
The ejection position shown, in this moving process, the knock-pin 412 of the driving mechanism 41 pushes the die pad 411 to move up, and
Second sliding block 422 and the 23 upward ejection of the first jumper bar are driven, makes second oblique surface of second sliding block 422
427 generate Relative sliding, and make 421 court of the first sliding block with first oblique surface 426 of first sliding block 421 respectively
Direction movement close to each other, by the intermeshing tooth-strip part 425 and the driving section 221, makes first mode 22
Flute profile characteristic direction along embryo material B is rotated with first jumper bar 23 for axis.And the positioning end 231 of first jumper bar 23 is card
Be placed in the bottom of embryo material B, and make the embryo material being inserted B that can not rotate by the shape of the positioning end 231, with coordinate this first
Embryo material B is ejected first mode 22 and completes stripping action by the spinning movement of mode 22.The driving mechanism 41 by this into
During type position is moved to the ejection position, first elastic component 24, the return elastic piece 413 and the return unit
423 are compressed, and make first jumper bar 23, the die pad 411 and first sliding block respectively after the completion of stripping action
421 reset.This location mechanism can avoid first mode 22 that from can not going back to original position after being rotated, and can directly carry out next
Secondary processing promotes processing precision and saves the time without recalibrating.
Only needing a passage that can mold by the mechanism of rotating stripping demoulding, shape is increasingly complex, size is more accurately forged
Part, and solve the problems, such as that negative draft angle forging is difficult to demould, and is not required to additional machining and can save material, reduce molding road
It is secondary and reduce cost.And first mode 22 and second mode 32 are air-tight state in forging molding, therefore forging can be a large amount of
Flash amount is reduced, metal streamline, so as to avoid forging streamline end exposed, can improve the machinery of forging along forging contoured profile
Performance.
In conclusion by the gearing of first sliding block 421 and second sliding block 422, first mode 22 can be made
It is rotated with first jumper bar 23 for axis, and then embryo material B is ejected into first mode 22 and completes to demould, be not required to destroy in design
The integrality of first jumper bar 23 and first mode 22 promotes intensity and accuracy, and solves negative draft angle not easy mold release
Problem, therefore the purpose of the present invention can be reached really.
Claims (10)
1. a kind of spiral bevel gear forging apparatus, to be molded an embryo material, which includes one the
One die unit and a demoulding unit, first die unit include one to put the first mode and one of the embryo material
A the first jumper bar for movably wearing first mode and one end contact embryo material bottom, the demoulding unit interlock first mould
Benevolence, it is characterised in that：The spiral bevel gear forging apparatus also drives first mode with first jumper bar comprising at least one
For the pushing and pressing mechanism and a driving mechanism of axis rotation, which can controllably push up in a shaping position and one
Moved between out position, when the driving mechanism by the shaping position towards when being moved between the ejection position, can push the pushing and pressing mechanism and
First jumper bar makes the pushing and pressing mechanism that first mode be driven to be rotated relative to first jumper bar, and makes first jumper bar should
Embryo material ejects first mode.
2. spiral bevel gear forging apparatus according to claim 1, it is characterised in that：There are one accept for driving mechanism tool
The die pad of first jumper bar, the pushing and pressing mechanism tool there are one can push first mode rotate the first sliding block and one to set
Simultaneously the second sliding block of contact first sliding block is placed on the die pad of the driving mechanism.
3. spiral bevel gear forging apparatus according to claim 2, it is characterised in that：There are one ontologies for first sliding block tool
Portion and first oblique surface for being set on the body part and sticking to second sliding block, there are one stick to second sliding block tool
Second oblique surface of first oblique surface.
4. spiral bevel gear forging apparatus according to claim 3, it is characterised in that：The first mode outer rim is convexly equipped with more
A driving section in tooth form, first sliding block also have that there are one the racks that are set on the body part and are engaged with the driving section
Portion.
5. spiral bevel gear forging apparatus according to claim 1, it is characterised in that：There are one holdings for first jumper bar tool
In the embryo material bottom with limit the embryo material rotation positioning end.
6. spiral bevel gear forging apparatus according to claim 2, it is characterised in that：First die unit further includes one
It is a to distinguish contact first jumper bar and the first bullet of first mode for the first die holder of first mode setting and a both ends
Property part.
7. spiral bevel gear forging apparatus according to claim 6, it is characterised in that：The spiral bevel gear forging apparatus is also
The second die unit comprising one with the first die unit pairing, second die unit include one and first die holder
Second die holder of pairing, one be set in second die holder and the second mode with the first mode pairing, one be set to
In second die holder and wear the second jumper bar of second mode and one is set in second die holder and both ends difference contact
Second elastic component of second die holder and second mode.
8. spiral bevel gear forging apparatus according to claim 7, it is characterised in that：First sliding block of the pushing and pressing mechanism
It is set in first die holder, which also has that there are one be set to return unit on first sliding block.
9. spiral bevel gear forging apparatus according to claim 6, it is characterised in that：The driving mechanism also has at least one
The return elastic piece of a both ends difference contact die pad and first die holder.
10. spiral bevel gear forging apparatus according to claim 6, it is characterised in that：First die unit further includes
It is at least one to be placed between first die holder and first mode, mitigate the rotation of frictional force between first mode and first die holder
Turn part, which also has there are one being set to knock-pin on the die pad, and the knock-pin is towards far from first jumper bar
Direction wears 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 CN105983638A (en) | 2016-10-05 |
| CN105983638B true 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 |
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| CN (1) | CN105983638B (en) |
Families Citing this family (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 |
| EP3450045B1 (en) * | 2017-08-28 | 2020-08-19 | Toyota Jidosha Kabushiki Kaisha | Method and apparatus for forging gears |
| TWI672183B (en) * | 2018-10-22 | 2019-09-21 | 財團法人金屬工業研究發展中心 | Apparatus for multi-action forging |
Citations (5)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4309026B2 (en) * | 2000-06-19 | 2009-08-05 | 彰 吉田 | Spiral bevel gear manufacturing equipment |
-
2015
- 2015-01-27 CN CN201510040450.8A patent/CN105983638B/en active Active
Patent Citations (5)
| 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 |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN105983638A (en) | 2016-10-05 |
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