CN205859106U - For case of transmission orifice structure - Google Patents
For case of transmission orifice structure Download PDFInfo
- Publication number
- CN205859106U CN205859106U CN201620584803.0U CN201620584803U CN205859106U CN 205859106 U CN205859106 U CN 205859106U CN 201620584803 U CN201620584803 U CN 201620584803U CN 205859106 U CN205859106 U CN 205859106U
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- Prior art keywords
- circular arc
- blade
- arc blade
- case
- transmission
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Abstract
This utility model relates to a kind of orifice structure, particularly relates to a kind of for case of transmission orifice structure.Including case of transmission and tool matrix, described case of transmission is provided with blade pilot hole, the top of described blade pilot hole is provided with and connects position, the lower end of described tool matrix is coated with circular arc blade, the cross section of described circular arc blade lower end under rectangular-shaped, the trapezoidal shape of cross section of described circular arc blade middle-end, the cross section of described circular arc blade upper end is presented rectangular-shaped, the stitching portion of middle-end of lower end and circular arc blade of circular arc blade be arc transition, the lower end of described circular arc blade stretches in blade pilot hole, the middle-end of described circular arc blade is with to connect position matched.Reduce operational error for case of transmission orifice structure, improve serviceability.
Description
Technical field
This utility model relates to a kind of orifice structure, particularly relates to a kind of for case of transmission orifice structure.
Background technology
Traditional housing aperture chamfer machining technique, according to chamfer angle requirement, pacifies standard insert according to certain angle
It is contained on tool matrix, is rotated by cutter and remove aperture material direct forming, but due in the course of processing, due to housing
Aperture material is squeezed deformation, and bevel edge is that straight line connects with endoporus, and this can cause producing sharp edge, follow-up at joint
Cut oil sealing during assembling and cause variator leakage of oil.
Utility model content
This utility model mainly solves the deficiencies in the prior art, it is provided that a kind of compact conformation, prevents oil sealing from pacifying
It is scratched during dress and causes the problem of variator leakage of oil to occur, reduce tying for transmission case body orifice of variator leakage of oil risk
Structure.
Above-mentioned technical problem of the present utility model is mainly addressed by following technical proposals:
It is a kind of for case of transmission orifice structure, it is characterised in that: include case of transmission and tool matrix, described
Being provided with blade pilot hole in case of transmission, the top of described blade pilot hole is provided with and connects position, described tool matrix
Lower end is coated with circular arc blade, the cross section of described circular arc blade lower end under rectangular-shaped, described circular arc blade middle-end
The trapezoidal shape of cross section, the cross section of described circular arc blade upper end is presented rectangular-shaped, the lower end of circular arc blade and circular arc
The stitching portion of the middle-end of blade is arc transition, and the lower end of described circular arc blade stretches in blade pilot hole, described circle
The middle-end of arc blade is with to connect position matched.
As preferably, the angle of inclination of described circular arc blade middle-end outer wall is 45 degree, the radius of stitching portion arc transition
For 3-5mm.
Therefore, of the present utility model for case of transmission orifice structure, reduce operational error, improve serviceability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of case of transmission in this utility model；
Fig. 3 is the structural representation of tool matrix in this utility model.
Detailed description of the invention
Below by embodiment, and combine accompanying drawing, the technical solution of the utility model is described in further detail.
Embodiment 1: as shown in Figure 1, Figure 2 and Figure 3, a kind of for case of transmission orifice structure, including case of transmission 1
With tool matrix 2, being provided with blade pilot hole 3 in described case of transmission 1, the top of described blade pilot hole 3 is provided with joins
Connecing position 4, the lower end of described tool matrix 2 is coated with circular arc blade 5, and the cross section of described circular arc blade 5 lower end is lower square
Shape, the trapezoidal shape of cross section of described circular arc blade 5 middle-end, the cross section of described circular arc blade 5 upper end presents rectangle
Shape, the stitching portion of middle-end of lower end and circular arc blade 5 of circular arc blade 5 be arc transition, described circular arc blade 5 times
End stretches in blade pilot hole 3, and the middle-end of described circular arc blade 5 is with to connect position 4 matched.
The angle of inclination of described circular arc blade 5 middle-end outer wall is 45 degree, and the radius of stitching portion arc transition is 3-5mm.
Claims (2)
1. one kind is used for case of transmission orifice structure, it is characterised in that: include case of transmission (1) and tool matrix (2), institute
Being provided with blade pilot hole (3) in the case of transmission (1) stated, the top of described blade pilot hole (3) is provided with and connects position (4),
The lower end of described tool matrix (2) is coated with circular arc blade (5), and the cross section of described circular arc blade (5) lower end is lower square
Shape, the trapezoidal shape of cross section of described circular arc blade (5) middle-end, the cross section of described circular arc blade (5) upper end is presented
Rectangular-shaped, the stitching portion of middle-end of lower end and circular arc blade (5) of circular arc blade (5) be arc transition, described circular arc
The lower end of blade (5) stretches in blade pilot hole (3), and the middle-end of described circular arc blade (5) is with to connect position (4) matched.
It is the most according to claim 1 for case of transmission orifice structure, it is characterised in that: described circular arc blade (5)
The angle of inclination of middle-end outer wall is 45 degree, and the radius of stitching portion arc transition is 3-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620584803.0U CN205859106U (en) | 2016-06-16 | 2016-06-16 | For case of transmission orifice structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620584803.0U CN205859106U (en) | 2016-06-16 | 2016-06-16 | For case of transmission orifice structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205859106U true CN205859106U (en) | 2017-01-04 |
Family
ID=57638343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620584803.0U Active CN205859106U (en) | 2016-06-16 | 2016-06-16 | For case of transmission orifice structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205859106U (en) |
-
2016
- 2016-06-16 CN CN201620584803.0U patent/CN205859106U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |