CN207615604U - A kind of new gear forging tooling - Google Patents
A kind of new gear forging tooling Download PDFInfo
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- CN207615604U CN207615604U CN201721446894.2U CN201721446894U CN207615604U CN 207615604 U CN207615604 U CN 207615604U CN 201721446894 U CN201721446894 U CN 201721446894U CN 207615604 U CN207615604 U CN 207615604U
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- outer sleeve
- mold
- circle
- upper mold
- truncated cone
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Abstract
The utility model discloses a kind of new gears to forge tooling, including the outer sleeve being vertically arranged, and it is arranged in outer sleeve and the upper mold coordinated with outer sleeve transition and lower mold, outer sleeve is cylindrical, the center of upper mold and lower mold offers truncated cone-shaped through-hole, the upper radius of circle of the truncated cone-shaped through-hole of upper mold is less than its lower radius of circle, the upper radius of circle of the truncated cone-shaped through-hole of lower mold is more than its lower radius of circle, lower mould upper surface offers and is provided with the first rounded corners at the position of truncated cone-shaped through-hole, upper mold lower face offers and is provided with the second rounded corners at the position of truncated cone-shaped through-hole, upper mold and lower mold are oppositely arranged, outer sleeve, the central shaft of upper mold and lower mold is respectively positioned on same straight line.The forge piece of the utility model and the shape of new gear are close, and allowance is small, and stock utilization is high, and forge piece is convenient to remove, efficient, and forge piece is not easy crimp, and generation burr is few, and dismounting is easy for installation.
Description
Technical field
The utility model belongs to technical field of forging, and in particular to a kind of new gear forging tooling.
Background technology
Flat-die forging is to make metal all directions Free Transform between upper and lower anvil face using impact force or pressure, not by any
A kind of processing method of the forging of required shape and size and certain mechanical performance is limited and obtains, flat-die forging can not usually forge
Make the tooling that design specialized is needed in the step-like structural member of outer circle.
A kind of new gear in ultra-large type rocker arm of coal mining machine as shown in Figure 1, in ultra-large type rocker arm of coal mining machine
In play important gearing, which is driven in rocking arm, be built-in part, the new gear is complicated, relatively existing
There is coal mining type gear, the new gear stress is big and forced area is wide, and the number of teeth is 37 and modulus is 10, and the new gear is horizontal
The diameter in section causes forging difficulty big in the presence of variation, while the material of the new gear is 18Cr2Ni4WA, this material is one
Alloy carburizing steel in kind of high intensity, high tenacity, the high intensity of high-hardenability, the hot-working character of alloy carburizing steel in high intensity
Difference further increases forging difficulty.The forging tooling that existing forging technology technology uses forges blank part, passes through
Forge piece is cylindrical made of this forging tooling forging, and allowance is excessive, and stock utilization is not high.
Utility model content
The technical problem to be solved by the utility model is to the deficiencies in for the above-mentioned prior art, provide a kind of novel
The shape of gear forging tooling, forge piece and new gear is close, and allowance is small, and stock utilization is high, and forge piece takes out
Convenient, efficient, forge piece is not easy crimp, and generation burr is few, and dismounting is easy for installation.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of new gear forging tooling,
It is characterized in that：Including the outer sleeve being vertically arranged and be arranged in outer sleeve and the upper mold that coordinates with outer sleeve transition and
Lower mold, outer sleeve is cylindrical, and the center of the upper mold and lower mold offers truncated cone-shaped through-hole, the upper mold
The upper radius of circle of the truncated cone-shaped through-hole of tool is less than its lower radius of circle, and the upper radius of circle of the truncated cone-shaped through-hole of the lower mold is more than it
Lower radius of circle, the lower mould upper surface offer and are provided with the first rounded corners, the upper mold at the position of truncated cone-shaped through-hole
Tool lower face offers and is provided with the second rounded corners at the position of truncated cone-shaped through-hole, the upper mold and lower mold is opposite sets
It sets, the central shaft of the outer sleeve, upper mold and lower mold is respectively positioned on same straight line.
A kind of above-mentioned new gear forges tooling, it is characterised in that：The fit tolerance of transition cooperation is ±
0.02mm。
A kind of above-mentioned new gear forges tooling, it is characterised in that：The outside diameter of the outer sleeve is 530mm, outside
The a diameter of 411mm of inner circle of sleeve.
A kind of above-mentioned new gear forges tooling, it is characterised in that：The inner circle position of the outer sleeve upper and lower ends face
Place is both provided with right angle chamfering, and the length of side of the right angle chamfering is 3mm~8mm, and the angle of the right angle chamfering is 45 °.
A kind of above-mentioned new gear forges tooling, it is characterised in that：The roughness of the outer sleeve inner wall is less than
3.2um。
A kind of above-mentioned new gear forges tooling, it is characterised in that：First rounded corners and the second rounded corners
Radius be 12mm~18mm.
A kind of above-mentioned new gear forges tooling, it is characterised in that：Holding tank is offered on the outer wall of the outer sleeve,
The depth of the holding tank is 3mm~8mm.
The utility model has the following advantages compared with prior art：
1, the utility model in outer sleeve by being arranged upper mold and lower mold and ultimately forming a closed forging
Blank part is placed in the closed forging mold and forges, when obtained forge piece is processed into new gear by mold
More convenient, allowance is small, and stock utilization is high.
2, the utility model is coordinated with outer sleeve transition by upper mold and lower mold so that upper mold and lower mold are equal
It is easy for assemble or unload with outer sleeve, production efficiency is improved, and three's concentricity is high.
3, the utility model is all provided with truncated cone-shaped through-hole by being opened in the center of upper mold and lower mold so that upper mold
Certain pattern draft is all had with lower mold, forge piece is facilitated to be taken out from upper mold and lower mold.
4, the utility model prevents blank part in forging process by the way that rounded corners are arranged in upper mold and lower mold
Stress concentration and the crimp at chamfering, and reduce the generation of burr.
In conclusion the forge piece of the utility model and the shape of new gear are close, allowance is small, stock utilization
Height, forge piece is convenient to remove, efficient, and forge piece is not easy crimp, and generation burr is few, and dismounting is easy for installation.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Description of the drawings
Fig. 1 is the structural schematic diagram of new gear.
Fig. 2 is the structural schematic diagram of the utility model.
Fig. 3 is the vertical view of Fig. 2.
Fig. 4 is the structural schematic diagram of the utility model outer sleeve.
Reference sign:
1-lower mold；2-outer sleeves；3-upper molds；
4-blank parts；5-the first rounded corners；6-the second rounded corners；
7-holding tanks；8-lower end surface chamfers；9-upper end surface chamfers.
Specific implementation mode
A kind of new gear as shown in Figure 1 forges tooling, including the outer sleeve 2 being vertically arranged and setting are in housing
The upper mold 3 and lower mold 1 coordinated in cylinder 2 and with 2 transition of outer sleeve, outer sleeve 2 is cylindrical, the upper mold 3 and lower die
The center of tool 1 offers truncated cone-shaped through-hole, and the upper radius of circle of the truncated cone-shaped through-hole of the upper mold 3 is less than its lower circle half
The upper radius of circle of diameter, the truncated cone-shaped through-hole of the lower mold 1 is more than its lower radius of circle, and 1 upper surface of lower mold offers circle
The first rounded corners 5 are provided at the position of platform shape through-hole, 3 lower face of the upper mold offers at the position of truncated cone-shaped through-hole
The second rounded corners 6 are provided with, the upper mold 3 and lower mold 1 are oppositely arranged, the outer sleeve 2, upper mold 3 and lower mold 1
Central shaft be respectively positioned on same straight line.
It should be noted that upper mold 3 and lower mold 1 are arranged in outer sleeve 2 and ultimately forms a closed forging
Blank part 4 is placed in the closed forging mold and forges, when obtained forge piece is processed into new gear by mold
More convenient, allowance is small, and stock utilization is high, when it is implemented, lower mold 1, upper mold 3 and outer sleeve 2 are all made of heat
Make mould steel 5CrMnMo to be made, 5CrMnMo wearabilities meet design requirement well.Upper mold 3 and lower mold 1 are and housing
Cylinder 2 transition cooperation so that upper mold 3 and lower mold 1 are easy for assemble or unload with outer sleeve 2, and upper mold 3,1 and of lower mold
The concentricity of outer sleeve 2 is high.By offering truncated cone-shaped through-hole in the center of lower mold 1 and upper mold 3, lower mold 1
The upper radius of circle of truncated cone-shaped through-hole is more than its lower radius of circle, and the upper radius of circle of the truncated cone-shaped through-hole of upper mold 3 is less than its lower circle half
Diameter so that lower mold 1 and upper mold 3 all have certain pattern draft, and the forge piece is facilitated to be taken out from lower mold 1.By
Identical with the structure of lower mold 1 in upper mold 3 and be oppositely arranged, design is convenient for production, and up-down symmetry is good；When it is implemented,
The outer diameter of lower mold 1 and upper mold 3 is 411mm, and the height of lower mold 1 and upper mold 3 is 55mm, truncated cone-shaped through-hole it is big
Radius of circle is 214mm, and the small radius of circle of truncated cone-shaped through-hole is 200mm.By the upper surface for opening up truncated cone-shaped through-hole in lower mold 1
It is provided with rounded corners at position, prevents the crimp at chamfering due to stress concentration in forging process of blank part 4,
And reduce the generation of burr.
In the present embodiment, upper mold 3 and lower mold 1 and outer sleeve 2 are transition cooperation, and the cooperation of the transition cooperation is public
Difference is ± 0.02mm, reduces the wear rate of upper mold 3 and lower mold 1 and outer sleeve, the processability of forge piece is good.
In the present embodiment, the outside diameter of outer sleeve 2 is 530mm, a diameter of 411mm of inner circle, and the height of outer sleeve 2 is
229mm, in forging process, outer sleeve 2 subjects the ballistic work of forging hammer, since the wall thickness of outer sleeve 2 is more than 40mm, outside
The kinetic energy that sleeve 2 absorbs cracks required energy less than it, its utilization rate is made to reach 10 times or more.
In the present embodiment, upper end surface chamfer 9 is set in the upper surface inner circle of outer sleeve 2, the lower face inner circle of outer sleeve 2 is set
Lower end surface chamfer 8 is set, upper end surface chamfer 9 and lower end surface chamfer 8 are right angle chamfering, and the length of side of the right angle chamfering is 5mm, institute
The angle for stating right angle chamfering is 45 °, by the way that upper end surface chamfer 9 and lower end surface chamfer 8 is arranged, facilitates lower mold 1 and upper mold 3
Cooperation with outer sleeve 2 is installed.
In the present embodiment, the roughness of 2 inner wall of outer sleeve is less than 3.2um.In actual use, the inner wall of outer sleeve 2 with
Blank part 4 contacts, and since the roughness of 2 inner wall of outer sleeve is less than 3.2um, obtains forge piece and is contacted with the inner wall of outer sleeve 2
The surface roughness in face is small, so that the processability of forge piece is good.
In the present embodiment, the chamfer radius of the first rounded corners 5 and the second rounded corners 6 is 15mm.In forging process,
Sharp corner stress concentration, forge piece is easy to strain cracking, and the chamfer radius is too small, be easy to cause forge piece in circle
It is worn at chamfering setting, by setting the chamfer radius of the rounded corners to 15mm so that so that forge piece falls in circle
At angle stress disperse, forge piece will not strain cracking, forge piece is without abrasion.
In the present embodiment, holding tank 7 is offered on the outer wall of outer sleeve 2, facilitates forging hammer motion arm that outer sleeve 2 is clamped, it is real
In the application of border, for holding tank 7 in annular shape, the depth of holding tank 7 is 5mm, increases rubbing between forging hammer motion arm and outer sleeve 2
Wipe power so that forging hammer motion arm can securely clamp outer sleeve 2.
When the utility model is used, blank part 4 is heated to 1100 DEG C, and lower mold 1 is lain in a horizontal plane in the anvil face of forging hammer
On, blank part 4 is put into outer sleeve 2 after outer sleeve 2 and lower 1 transition of mold cooperation, forging hammer impact blank part 4 is until fill out
The die cavity of mold 1 and outer sleeve 2, outer sleeve 2 is completely played to be machined to blank part 4 using forging hammer with after 3 transition of upper mold cooperation
Size is met the requirements, and to form forge piece, the forge piece is more nearly with new gear shape, and allowance is small, material
Utilization rate is high, and forging hammer stops impact, hits upper mold 3, and upper mold 3 is disengaged from closed forging mold, after taking out outer sleeve 2
Forge piece is taken out from lower mold 1.
The above is only the preferred embodiment of the utility model, not imposed any restrictions to the utility model, every
Any simple modification, change and equivalent structure made by above example are changed according to the utility model technical spirit, still
Belong in the protection domain of technical solutions of the utility model.
Claims (7)
1. a kind of new gear forges tooling, it is characterised in that：Including the outer sleeve (2) being vertically arranged and it is arranged in housing
The upper mold (3) and lower mold (1) coordinated in cylinder (2) and with outer sleeve (2) transition, outer sleeve (2) is cylindrical, the upper mold
The center of tool (3) and lower mold (1) offers truncated cone-shaped through-hole, the upper circle of the truncated cone-shaped through-hole of the upper mold (3)
Radius is less than its lower radius of circle, and the upper radius of circle of the truncated cone-shaped through-hole of the lower mold (1) is more than its lower radius of circle, the lower die
Tool (1) upper surface offers and is provided with the first rounded corners (5), upper mold (3) lower face at the position of truncated cone-shaped through-hole
It offers and is provided with the second rounded corners (6) at the position of truncated cone-shaped through-hole, the upper mold (3) and lower mold (1) are set relatively
It sets, the central shaft of the outer sleeve (2), upper mold (3) and lower mold (1) is respectively positioned on same straight line.
2. a kind of new gear described in accordance with the claim 1 forges tooling, it is characterised in that：The cooperation of the transition cooperation is public
Difference is ± 0.02mm.
3. a kind of new gear described in accordance with the claim 1 forges tooling, it is characterised in that：The outer circle of the outer sleeve (2)
A diameter of 530mm, a diameter of 411mm of inner circle of outer sleeve (2).
4. a kind of new gear described in accordance with the claim 1 forges tooling, it is characterised in that：The outer sleeve (2) up and down two
Right angle chamfering is both provided at the inner circle position of end face, the length of side of the right angle chamfering is 3mm~8mm, the right angle chamfering
Angle is 45 °.
5. a kind of new gear described in accordance with the claim 1 forges tooling, it is characterised in that：Outer sleeve (2) inner wall
Roughness is less than 3.2um.
6. a kind of new gear described in accordance with the claim 1 forges tooling, it is characterised in that：First rounded corners (5)
Radius with the second rounded corners (6) is 12mm~18mm.
7. a kind of new gear described in accordance with the claim 1 forges tooling, it is characterised in that：The outer wall of the outer sleeve (2)
On offer holding tank (7), the depth of the holding tank (7) is 3mm~8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721446894.2U CN207615604U (en) | 2017-11-02 | 2017-11-02 | A kind of new gear forging tooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721446894.2U CN207615604U (en) | 2017-11-02 | 2017-11-02 | A kind of new gear forging tooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207615604U true CN207615604U (en) | 2018-07-17 |
Family
ID=62827848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721446894.2U Active CN207615604U (en) | 2017-11-02 | 2017-11-02 | A kind of new gear forging tooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207615604U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482807A (en) * | 2018-12-19 | 2019-03-19 | 四川民盛特钢锻造有限公司 | The crude green body forging mold and its forging method of dual stage gear formed forgings |
-
2017
- 2017-11-02 CN CN201721446894.2U patent/CN207615604U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482807A (en) * | 2018-12-19 | 2019-03-19 | 四川民盛特钢锻造有限公司 | The crude green body forging mold and its forging method of dual stage gear formed forgings |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 710200 No. 7, Middle Section of Jingpu Road, Jingwei New City, Jingkai District, Xi'an City, Shaanxi Province Patentee after: Xi'an Coal Mining Machinery Co., Ltd. Address before: 710021 No. 8 Shangji Road, Xi'an Economic and Technological Development Zone, Xi'an City, Shaanxi Province Patentee before: Xi'an Coal Mining Machinery Co., Ltd. |