CN214404412U - Three-pin frame beneficial to processing - Google Patents
Three-pin frame beneficial to processing Download PDFInfo
- Publication number
- CN214404412U CN214404412U CN202022931494.9U CN202022931494U CN214404412U CN 214404412 U CN214404412 U CN 214404412U CN 202022931494 U CN202022931494 U CN 202022931494U CN 214404412 U CN214404412 U CN 214404412U
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- round pin
- processing
- drum
- transition step
- framves
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Abstract
The utility model discloses a three round pin framves that do benefit to processing mainly includes cydariform body, round pin axle, R transition step, little boss formula structure, the three round pin axle of cydariform body circumference evenly distributed, design R transition step between cydariform body and the round pin axle, the little boss formula structure of cydariform body oral area design. The utility model discloses changed the axle journal processing technology of three round pin framves usually, made the high accuracy of the cold crowded blank of three round pin framves utilized better, can guarantee that transition step department metal streamline is continuous, when improving three round pin frame product strength, reduced subsequent processing cutting, can improve the utilization ratio of material simultaneously, practiced thrift raw and other materials.
Description
Technical Field
The utility model relates to a field of tripod, concretely relates to do benefit to tripod of processing.
Background
The constant velocity universal joint is one of the key parts of a car transmission system, the car transmission system has strict requirements on the transmission precision, the driving moment and the bearing capacity of the universal joint, the demand on the universal joint is large, and the universal joint is a safety part, so that the main parts of the car transmission system are required to be processed by adopting precision die forging. The tripod is an important part of the tripod constant velocity universal joint, and has complex geometric shape and high requirements on dimensional precision, mechanical property and appearance structure.
In cold precision forging forming of the three-pin frame, the forming process of the steps at the root of the pin shaft is difficult to control, and various processing parameters are involved, such as the shapes of cavities of workpieces and dies, the geometric dimensions, the material performance, friction boundary conditions, temperature rise caused by friction and the like. Therefore, the cutting method is usually adopted to ensure that the processing procedure is long, the advantages of cold precision forging cannot be fully exerted, and the resource waste is caused. However, after the CAD technology is used for drawing, the problems of product forming and strength verification are difficult to solve, the problems are respectively limited by adopting test analysis, and the strength of the tripod is more important to be analyzed by adopting Deform forming analysis and finite element simulation.
Generally speaking, the root part of the three-pin-frame shaft neck of the existing structure is difficult to form by cold precision forging, has a plurality of defects, directly influences the strength of a product, generally adopts a blank transition mode to control the shape, and then ensures the quality by cutting into a required shape and size, the processing procedure is long, the advantages of cold precision forging cannot be fully exerted, the cutting allowance is large, and the processing period and the processing cost of the product are increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the not enough of prior art existence, and provide a three round pin framves that do benefit to processing.
The purpose of the utility model is accomplished through following technical scheme: the three-pin frame beneficial to processing mainly comprises a drum-shaped body, pin shafts, R transition steps and small boss type structures, wherein the three pin shafts are uniformly distributed on the circumference of the drum-shaped body, the R transition steps are designed between the drum-shaped body and the pin shafts, and the small boss type structures are designed at the opening parts of the drum-shaped body.
The small boss type structure is a curve structure consisting of a cylinder, an arc A and an arc B.
The utility model has the advantages that: the utility model discloses changed the axle journal processing technology of three round pin framves usually, made the high accuracy of the cold crowded blank of three round pin framves utilized better, can guarantee that transition step department metal streamline is continuous, when improving three round pin frame product strength, reduced subsequent processing cutting, can improve the utilization ratio of material simultaneously, practiced thrift raw and other materials.
Drawings
Fig. 1 is a front view of a prior art structure.
Fig. 2 is a sectional view of a structure of the prior art.
Fig. 3 is a front view of the structure of the present invention.
Fig. 4 is a structural sectional view of the present invention.
Description of reference numerals: the device comprises a drum-shaped body 1, a pin shaft 2, an R transition step 3, a small boss type structure 4, a cylinder 5, an arc A6, an arc B7 and a pin shaft root 8.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
example (b): as shown in the attached drawings, the three-pin frame beneficial to processing mainly comprises a drum-shaped body 1, pin shafts 2, R transition steps 3 and a small boss type structure 4, wherein the three pin shafts 2 are uniformly distributed on the circumference of the drum-shaped body 1, the R transition steps 3 are designed between the drum-shaped body 1 and the pin shafts 2, the R transition steps 3 are set to be R0.5-R6, and the small boss type structure 4 is designed at the opening part of the drum-shaped body 1. The small boss type structure 4 is a curved structure composed of a cylinder 5, an arc a6 and an arc B7.
The three-pin frame with the structure directly extrudes the R transition step 3 in the cold precision forging of the blank, the subsequent transition step is not machined, the metal streamline at the R transition step 3 can be ensured to be continuous, and the production and the processing are facilitated while the product strength of the three-pin frame is improved.
It should be understood that equivalent substitutions or changes to the technical solution and the inventive concept of the present invention should be considered to fall within the scope of the appended claims for the skilled person.
Claims (1)
1. The utility model provides a do benefit to tripod of processing which characterized in that: the novel drum-shaped structure mainly comprises a drum-shaped body (1), pin shafts (2), R transition steps (3) and small boss type structures (4), wherein the three pin shafts (2) are uniformly distributed on the circumference of the drum-shaped body (1), the R transition steps (3) are designed between the drum-shaped body (1) and the pin shafts (2), and the small boss type structures (4) are designed at the opening part of the drum-shaped body (1); the small boss type structure (4) is a curve structure consisting of a cylinder (5), an arc A (6) and an arc B (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022931494.9U CN214404412U (en) | 2020-12-09 | 2020-12-09 | Three-pin frame beneficial to processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022931494.9U CN214404412U (en) | 2020-12-09 | 2020-12-09 | Three-pin frame beneficial to processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214404412U true CN214404412U (en) | 2021-10-15 |
Family
ID=78037238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022931494.9U Active CN214404412U (en) | 2020-12-09 | 2020-12-09 | Three-pin frame beneficial to processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214404412U (en) |
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2020
- 2020-12-09 CN CN202022931494.9U patent/CN214404412U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 311215 Wanxiang Road, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee after: Wanxiang Qianchao Co.,Ltd. Patentee after: WANXIANG GROUP Co.,Ltd. Address before: No.1 Wanxiang Road, Xiaoshan Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Patentee before: WANXIANG QIANCHAO Co.,Ltd. Patentee before: WANXIANG GROUP Co.,Ltd. |
|
| CP03 | Change of name, title or address |