CN207325939U - Bore tooth forming belt shoulder female mould structure - Google Patents
Bore tooth forming belt shoulder female mould structure Download PDFInfo
- Publication number
- CN207325939U CN207325939U CN201720903005.4U CN201720903005U CN207325939U CN 207325939 U CN207325939 U CN 207325939U CN 201720903005 U CN201720903005 U CN 201720903005U CN 207325939 U CN207325939 U CN 207325939U
- Authority
- CN
- China
- Prior art keywords
- core rod
- die
- die sleeve
- cavity
- female mould
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Forging (AREA)
Abstract
The utility model discloses one kind to bore tooth forming belt shoulder female mould structure, including core rod and die sleeve, the core rod, which is installed in the installation cavity that die sleeve center opens up, forms an overall structure, the core rod is arranged concentrically with die sleeve, die cavity is provided centrally with the core rod, the top of the die cavity is formed with cylindrical portion, the middle part of the die cavity forms band shoulder, conical section is formed in the lower part of die cavity, seamlessly transitted between the band shoulder and conical section using circular arc, cone tooth is set on the conical section, a through hole is offered on the core rod of the mold cavity bottoms, the bottom of the die sleeve installation cavity offers the via being arranged concentrically with the through hole accordingly.Its remarkable result is：The generation of burr phenomena effectively is avoided, so as to save subsequent product trimming, improves production efficiency；Meanwhile former can bear stronger pressure so that the product of shaping has more preferable density and intensity.
Description
Technical field
Powder metallurgy angular wheel forming technique field is the utility model is related to, is a kind of cone tooth shaping specifically
Band shoulder female mould structure.
Background technology
Bevel gear is a kind of common gear part, be can be applied in various gearboxes, since mechanical property and precision will
Ask higher, machine and obtain after generally all using finish forge.And the production history compensation of powder metallurgy high intensity bevel gear at home,
Belong to the more special one kind of shape during powder metallurgy formation.Traditional bevel gear shaped structure is in production, product
Density, insufficient strength, and burr is easily produced, in order to ensure that the dimensional accuracy of part reaches requirement, one is also needed to after sintering
Road polishing process is surface-treated to ensure.
The content of the invention
In view of the deficiencies of the prior art, the purpose of this utility model is to provide a kind of cone tooth forming belt shoulder female mould structure, with
Product burr is solved, improves product density, intensity.
To reach above-mentioned purpose, the technical solution adopted in the utility model is as follows：
One kind cone tooth forming belt shoulder female mould structure, its key are：Including core rod and die sleeve, the core rod is installed in die sleeve
An overall structure is formed in the installation cavity that center opens up, the core rod is arranged concentrically with die sleeve, in the centrally disposed of the core rod
There is die cavity, the top of the die cavity forms band shoulder, taper is formed in the lower part of die cavity formed with cylindrical portion, the middle part of the die cavity
Section, is seamlessly transitted between the band shoulder and conical section using circular arc, and cone tooth is set on the conical section, the mold cavity bottoms
A through hole is offered on core rod, the bottom of the die sleeve installation cavity offers the via being arranged concentrically with the through hole accordingly.
Further, the axially extending formation installation step in the lower part of the die sleeve, the both sides of the edge up and down of the installation step
Carry out chamfered.
Further, multiple location holes are further opened with the die sleeve, the location hole is located at the outer of the installation cavity
Side.
Further, the diameter of the via is more than the diameter of the through hole.
Further, the diameter difference between the diameter of the via and the through hole is 1~2mm.
The remarkable result of the utility model is：Having the advantages of simple structure and easy realization, this female mould structure devises band shoulder structure,
In the forming process of angular wheel, the generation of burr phenomena is effectively avoided, meanwhile, former can bear stronger pressure,
So that the product of shaping has more preferable density and intensity.In addition, the junction of each several part is seamlessly transitted using circular arc, make
Obtain junction and gap is not present, further avoid burr phenomena, so as to save subsequent product trimming, improve life
Produce efficiency.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Embodiment
Specific embodiment of the present utility model and operation principle are described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of cone tooth forming belt shoulder female mould structure, including core rod 1 and die sleeve 2, the core rod 1 are installed in mould
Cover and an overall structure is formed in the installation cavity that 2 centers open up, the core rod 1 is arranged concentrically with die sleeve 2, in the core rod 1
The heart is provided with die cavity 3, and the top of the die cavity 3 is formed with cylindrical portion 4, and the middle part of the die cavity 3 forms band shoulder 5, under die cavity 3
Portion forms conical section 6, is seamlessly transitted between the band shoulder 5 and conical section 6 using circular arc, and cone tooth is set on the conical section 6
7, offer a through hole 8 on the core rod 1 of 3 bottom of die cavity, the bottom of 2 installation cavity of die sleeve offer accordingly with it is described
The via 9 that through hole 8 is arranged concentrically.
As shown in Figure 1, the lower part of the die sleeve 2 is axially extending to form installation step 10, up and down the two of the installation step 10
Lateral edges carry out chamfered.
From figure 1 it appears that being further opened with multiple location holes 11 on the die sleeve 2, the location hole 11 is located at institute
State the outside of installation cavity.
It can further be seen from figure 1 that the diameter of the via 9 is more than the diameter of the through hole 8.In the present embodiment, it is excellent
It is 1~2mm to select the diameter difference between the diameter and the through hole 8 of the via 9.
Claims (5)
1. one kind cone tooth forming belt shoulder female mould structure, it is characterised in that：Including core rod (1) and die sleeve (2), core rod (1) dress
An overall structure is formed in the installation cavity opened up arranged on die sleeve (2) center, the core rod (1) is arranged concentrically with die sleeve (2), in institute
That states core rod (1) is provided centrally with die cavity (3), and the top of the die cavity (3) is formed with cylindrical portion (4), the middle part of the die cavity (3)
Band shoulder (5) is formed, conical section (6) is formed in the lower part of die cavity (3), is put down between the band shoulder (5) and conical section (6) using circular arc
Slip over and cross, cone tooth (7) is set on the conical section (6), a through hole is offered on the core rod (1) of die cavity (3) bottom
(8), the bottom of die sleeve (2) installation cavity offers the via (9) being arranged concentrically with the through hole (8) accordingly.
2. cone tooth forming belt shoulder female mould structure according to claim 1, it is characterised in that：The lower part axis of the die sleeve (2)
To installation step (10) is extended to form, the both sides of the edge up and down of the installation step (10) carry out chamfered.
3. cone tooth forming belt shoulder female mould structure according to claim 1 or 2, it is characterised in that：On the die sleeve (2) also
Multiple location holes (11) are offered, the location hole (11) is located at the outside of the installation cavity.
4. cone tooth forming belt shoulder female mould structure according to claim 1, it is characterised in that：The diameter of the via (9) is big
Diameter in the through hole (8).
5. cone tooth forming belt shoulder female mould structure according to claim 4, it is characterised in that：The diameter of the via (9) with
Diameter difference between the through hole (8) is 1~2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720903005.4U CN207325939U (en) | 2017-07-24 | 2017-07-24 | Bore tooth forming belt shoulder female mould structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720903005.4U CN207325939U (en) | 2017-07-24 | 2017-07-24 | Bore tooth forming belt shoulder female mould structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207325939U true CN207325939U (en) | 2018-05-08 |
Family
ID=62376675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720903005.4U Expired - Fee Related CN207325939U (en) | 2017-07-24 | 2017-07-24 | Bore tooth forming belt shoulder female mould structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207325939U (en) |
-
2017
- 2017-07-24 CN CN201720903005.4U patent/CN207325939U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180508 Termination date: 20210724 |