CN209050410U - A kind of piston boring seat - Google Patents
A kind of piston boring seat Download PDFInfo
- Publication number
- CN209050410U CN209050410U CN201821780275.1U CN201821780275U CN209050410U CN 209050410 U CN209050410 U CN 209050410U CN 201821780275 U CN201821780275 U CN 201821780275U CN 209050410 U CN209050410 U CN 209050410U
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- CN
- China
- Prior art keywords
- piston
- positioning convex
- convex platform
- ring side
- locating slot
- 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.)
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a kind of piston boring seats, it includes pedestal, the upper surface outer edge of the pedestal is along the circumferential direction equipped with ring side, locating slot is formed inside ring side, the positioning convex platform of the circumferentially spaced setting of at least three is along the circumferential direction fixed on the bottom surface of the locating slot, and the upper surface of each positioning convex platform flushes；The lower end surface of piston is supported on each positioning convex platform, and the lower part of outside piston is arranged with ring side inner wall and is bonded.Positional accuracy of the piston on bore hole seat can be improved in the utility model, to effectively improve the machining accuracy of piston pin hole.
Description
Technical field
The utility model relates to Piston Machining field more particularly to a kind of piston boring seats.
Background technique
When traditional processing piston pin hole, bore hole seat generallys use piston inner hole positioning, then in blank head when piston is without inner hole
Portion's Design Orientation ring and positioning convex platform position bore hole seat pin hole processing using head.Since positioning convex platform is black skin, with bore hole
Seat groove cooperation when can not be accurately positioned, bore come hole aperture be easy it is overproof.
Summary of the invention
The purpose of this utility model is to provide a kind of piston boring seats that machining accuracy is high.
To achieve the above object, the utility model uses following technical scheme:
A kind of piston boring seat, including pedestal, the upper surface outer edge of the pedestal are along the circumferential direction equipped with ring side, ring side
Inside forms locating slot, is along the circumferential direction fixed with determining for the circumferentially spaced setting of at least three on the bottom surface of the locating slot
Position boss, and the upper surface of each positioning convex platform flushes；The lower end surface of piston is supported on each positioning convex platform, and under outside piston
Portion is arranged with ring side inner wall and is bonded.
The ring side is made of the spaced segmental arc of multistage.
The depth of the locating slot is 3-5mm.
The height of the positioning convex platform is 0.5-1.5mm.
The utility model uses above technical scheme, has the advantages that
1, it is positioned using the outer circle lower part of piston, before positioning, first the outer circle lower part of piston is first processed, guaranteed
Clamping is carried out after its cylindricity again, positional accuracy of the piston on bore hole seat can be improved in this way, to effectively improve piston
The machining accuracy of pin hole.
2, using the design of positioning convex platform, face contact is changed to point contact, the machined surface of each positioning convex platform is small, processing essence
Degree is easy to get guarantee, therefore positions and be easier to stablize.
Detailed description of the invention
The utility model is described in further details below in conjunction with the drawings and specific embodiments:
Fig. 1 is the top view of the utility model；
Fig. 2 is A-A cross-sectional view in Fig. 1.
Specific embodiment
As shown in Figure 1 or 2, the 4 bore hole seat of piston of the utility model, including pedestal 1, outside the upper surface of the pedestal 1
Edge is along the circumferential direction equipped with ring side 2, forms locating slot inside ring side 2, is along the circumferential direction fixed on the bottom surface of the locating slot
The positioning convex platform 3 of the circumferentially spaced setting of at least three, and the upper surface of each positioning convex platform 3 flushes；The lower end surface of piston 4
It is supported on each positioning convex platform 3, and the lower part of 4 outer circle of piston is arranged with 2 inner wall of ring side and is bonded.
The ring side 2 is made of the spaced segmental arc of multistage.Such structure, it is possible to reduce 2 inner wall of ring side adds
Work area, geometric tolerance are easier to ensure that, while can also save processing cost.
The depth of the locating slot is 3-5mm, and the height of positioning convex platform 3 is 0.5-1.5mm.Such design is to subtract
The mating surface of few piston 4 outer circle and locating slot can also reduce machined surface in the case where guaranteeing effectively cooperation.
The utility model is positioned using the outer circle lower part of piston 4, first advanced to the outer circle lower part of piston 4 before positioning
Row processing, carries out clamping after guaranteeing its cylindricity again, positional accuracy of the piston 4 on bore hole seat can be improved in this way, thus
Effectively improve the machining accuracy of 4 pin hole of piston.
In addition, face contact is changed to point contact using the design of positioning convex platform 3, the machined surface of each positioning convex platform 3 is small,
Machining accuracy is easy to get guarantee, therefore positions and be easier to stablize.
Above the preferred embodiment of the patent is described in detail, but this patent is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective
It makes a variety of changes.
Claims (4)
1. a kind of piston boring seat, including pedestal, it is characterised in that: the upper surface outer edge of the pedestal is along the circumferential direction equipped with
Ring side, ring side inside form locating slot, and it is circumferentially spaced to be along the circumferential direction fixed at least three on the bottom surface of the locating slot
The positioning convex platform of setting, and the upper surface of each positioning convex platform flushes；The lower end surface of piston is supported on each positioning convex platform, and piston
The lower part of outer circle is arranged with ring side inner wall and is bonded.
2. a kind of piston boring seat according to claim 1, it is characterised in that: the ring side is by the spaced arc of multistage
Shape section composition.
3. a kind of piston boring seat according to claim 1, it is characterised in that: the depth of the locating slot is 3-5mm.
4. a kind of piston boring seat according to claim 3, it is characterised in that: the height of the positioning convex platform is 0.5-
1.5mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821780275.1U CN209050410U (en) | 2018-10-31 | 2018-10-31 | A kind of piston boring seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821780275.1U CN209050410U (en) | 2018-10-31 | 2018-10-31 | A kind of piston boring seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209050410U true CN209050410U (en) | 2019-07-02 |
Family
ID=67052049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821780275.1U Active CN209050410U (en) | 2018-10-31 | 2018-10-31 | A kind of piston boring seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209050410U (en) |
-
2018
- 2018-10-31 CN CN201821780275.1U patent/CN209050410U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200715 Address after: 3 comprehensive office building, No.8, Shangmao Avenue, Nantong town, Minhou County, Fuzhou City, Fujian Province Patentee after: Fujian Huawei Juquan Precision Technology Co.,Ltd. Address before: 350000 Fujian city of Fuzhou province Fuzhou Development Zone on the west side of Longmen Gushan substation Patentee before: FUZHOU JIEH CHUENG AUTOMOBILE FITTING Co.,Ltd. |