CN207593426U - Piston internal expanding flat surface grinding tooling - Google Patents
Piston internal expanding flat surface grinding tooling Download PDFInfo
- Publication number
- CN207593426U CN207593426U CN201721458357.XU CN201721458357U CN207593426U CN 207593426 U CN207593426 U CN 207593426U CN 201721458357 U CN201721458357 U CN 201721458357U CN 207593426 U CN207593426 U CN 207593426U
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- internal expanding
- chuck
- cylinder
- mandrel
- pedestal
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model is related to a kind of piston internal expanding flat surface grinding tooling, it includes pedestal, cylinder, internal expanding mandrel, attachment screw and internal expanding chuck, the pedestal includes upper pedestal and lower base, the upper pedestal and lower base are bolted by multiple, the cylinder is set to the inside of lower base, and the telescopic end of cylinder is upward through upper pedestal, it is fixedly connected on the telescopic end of cylinder by vertical attachment screw with internal expanding mandrel, the internal expanding chuck is set to the top of upper pedestal, and internal expanding chuck is set to the outside of internal expanding mandrel, and the inner surface of internal expanding chuck has the inclined-plane to cooperate with the conical section of internal expanding mandrel, the outer surface of internal expanding chuck is vertical；Internal expanding chuck is flexible chuck.The utility model can increase the internal expanding chuck of tooling and the contact area of piston inner hole, reduce the influence that fit-up gap beats to part end face, improve part quality.
Description
Technical field
The utility model is related to a kind of piston internal expanding flat surface grinding tooling, for piston end surface to be controlled to exist endoporus bounce
Within 0.025mm, belong to frock clamp field.
Background technology
Piston is main parts in various hydraulic systems, and piston end surface has endoporus the bounce requirement of 0.025mm, makes
It when being processed with plug, is influenced by plug and inner hole gap, conventional hard Vehicle Processing and mill processing are unable to reach bounce requirement.
Invention content
The purpose of this utility model is to overcome above-mentioned deficiency can control piston end surface endoporus to jump when providing a kind of processing
Piston internal expanding flat surface grinding tooling within dynamic certain requirement.
What the purpose of this utility model was realized in：
A kind of piston internal expanding flat surface grinding tooling, it includes pedestal, cylinder, internal expanding mandrel, attachment screw and internal expanding chuck,
The pedestal includes upper pedestal and lower base, and the upper pedestal and lower base are bolted by multiple, and the cylinder is set to
The inside of lower base, and the telescopic end of cylinder is upward through upper pedestal, on the telescopic end of cylinder by vertical attachment screw with
Internal expanding mandrel is fixedly connected, the vertical section of internal expanding mandrel including hypomere and the conical section of upper end, the outer diameter of conical section on to
Under be gradually reduced until outer diameter it is identical with vertical section, it is vertical on the outer diameter and upper pedestal of the vertical section of internal expanding mandrel
Through-hole cooperate, the internal expanding chuck is set to the top of upper pedestal, and internal expanding chuck is set to the outside of internal expanding mandrel,
And the inner surface of internal expanding chuck has the inclined-plane to cooperate with the conical section of internal expanding mandrel, and the outer surface of internal expanding chuck is hung down
Directly；Internal expanding chuck is flexible chuck.
Internal expanding chuck includes multi-disc flap valve.
A kind of operation principle of piston internal expanding flat surface grinding tooling is as follows：
Cylinder is connected on pedestal, internal expanding mandrel is connected to by attachment screw on cylinder, and internal expanding mandrel is transported with cylinder
It is dynamic so that it unclamps with internal expanding chuck or is interference fitted from and has achieved the purpose that release and Clamp blocks；
Clamped condition：Cylinder drives internal expanding mandrel to move downward, and by cone match, makes internal expanding chuck spreading, clamps zero
Part；
Releasing orientation：Cylinder pushes internal expanding mandrel to move upwards, and internal expanding chuck leans on the elasticity of itself, replys shape during reconditioning
State unclamps part.
The pedestal baseplane of reconditioning lower base is needed before use, it is desirable that flatness 0.005mm, 0.4 μm of roughness Ra, reconditioning
Later, cylinder certain pressure is given, tooling is made to be in clamped condition, at this time reconditioning internal expanding chuck and inner bore of part contact surface, it
Circularity 0.003mm is sought, with pedestal baseplane verticality 0.005mm, 0.4 μm of roughness Ra can ensure the bounce of part at this time
It is required that.
Compared with prior art, the beneficial effects of the utility model are：
The utility model can increase the internal expanding chuck of tooling and the contact area of piston inner hole, reduce fit-up gap to zero
The influence of part end face run-out, improves part quality.
Description of the drawings
Fig. 1 is the structure diagram of the utility model piston internal expanding flat surface grinding tooling.
Wherein：
Upper pedestal 1, lower base 2, cylinder 3, internal expanding mandrel 4, attachment screw 5, internal expanding chuck 6.
Specific embodiment
Referring to Fig. 1, the utility model is related to a kind of piston internal expanding flat surface grinding tooling, it includes pedestal, cylinder 3, internal expanding
Mandrel 4, attachment screw 5 and internal expanding chuck 6, the pedestal include upper pedestal 1 and lower base 2, the upper pedestal 1 and lower seat
Body 2 is connected by multiple bolts 7, and the cylinder 3 is set to the inside of lower base 2, and the telescopic end of cylinder 3 is upward through
Pedestal 1 is fixedly connected by vertical attachment screw 5 with internal expanding mandrel 4 on the telescopic end of cylinder 3, and internal expanding mandrel 4 includes hypomere
Vertical section and upper end conical section, the outer diameter of conical section is gradually reduced from the top down until outer diameter and vertical section phase
Together, the outer diameter of the vertical section of internal expanding mandrel 4 cooperates with the vertical through-hole on upper pedestal 1, and the internal expanding chuck 6 is set
The top of upper pedestal 1 is placed in, and internal expanding chuck 6 is set to the outside of internal expanding mandrel 4, and the inner surface of internal expanding chuck 6 has
The inclined-plane to cooperate with the conical section of internal expanding mandrel 4, the outer surface of internal expanding chuck 6 are vertical；Internal expanding chuck 6 is with certain
The chuck of elasticity, it can include multi-disc flap valve.
Operation principle：
Cylinder is connected on pedestal, internal expanding mandrel is connected to by attachment screw on cylinder, and internal expanding mandrel is transported with cylinder
It is dynamic so that it unclamps with internal expanding chuck or is interference fitted from and has achieved the purpose that release and Clamp blocks.
Clamped condition：Cylinder drives internal expanding mandrel to move downward, and by cone match, makes internal expanding chuck spreading, clamps zero
Part；
Releasing orientation：Cylinder pushes internal expanding mandrel to move upwards, and internal expanding chuck leans on the elasticity of itself, replys shape during reconditioning
State unclamps part.
The pedestal baseplane of reconditioning lower base 2 is needed before use, it is desirable that flatness 0.005mm, 0.4 μm of roughness Ra, reconditioning
Later, cylinder certain pressure is given, tooling is made to be in clamped condition, at this time reconditioning internal expanding chuck and inner bore of part contact surface, it
Circularity 0.003mm is sought, with pedestal baseplane verticality 0.005mm, 0.4 μm of roughness Ra can ensure the bounce of part at this time
It is required that.
It the above is only the concrete application example of the utility model, do not form any limit to the scope of protection of the utility model
System.All technical solutions formed using equivalent transformation or equivalent replacement, all fall within the utility model rights protection scope it
It is interior.
Claims (2)
1. a kind of piston internal expanding flat surface grinding tooling, it is characterised in that it includes pedestal, cylinder (3), internal expanding mandrel (4), connection spiral shell
(5) and internal expanding chuck (6) are followed closely, the pedestal includes upper pedestal (1) and lower base (2), the upper pedestal (1) and lower base
(2) it is connected by multiple bolts (7), the cylinder (3) is set to the inside of lower base (2), and the telescopic end of cylinder (3) is upward
Across upper pedestal (1), it is fixedly connected on the telescopic end of cylinder (3) by vertical attachment screw (5) with internal expanding mandrel (4), it is interior
Rise the conical section of vertical section and upper end of the mandrel (4) including hypomere, and the outer diameter of conical section is gradually reduced from the top down until outer
Diameter size is identical with vertical section, and the outer diameter and the vertical through-hole on upper pedestal (1) of the vertical section of internal expanding mandrel (4) are mutual
Cooperation, the internal expanding chuck (6) is set to the top of upper pedestal (1), and internal expanding chuck (6) is set to the outer of internal expanding mandrel (4)
Side, and the inner surface of internal expanding chuck (6) has the inclined-plane to cooperate with the conical section of internal expanding mandrel (4), internal expanding chuck (6)
Outer surface it is vertical；Internal expanding chuck (6) is flexible chuck.
2. a kind of piston internal expanding flat surface grinding tooling according to claim 1, it is characterised in that internal expanding chuck (6) is including multi-disc
Flap valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721458357.XU CN207593426U (en) | 2017-11-06 | 2017-11-06 | Piston internal expanding flat surface grinding tooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721458357.XU CN207593426U (en) | 2017-11-06 | 2017-11-06 | Piston internal expanding flat surface grinding tooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207593426U true CN207593426U (en) | 2018-07-10 |
Family
ID=62758772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721458357.XU Active CN207593426U (en) | 2017-11-06 | 2017-11-06 | Piston internal expanding flat surface grinding tooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207593426U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107877280A (en) * | 2017-11-06 | 2018-04-06 | 无锡鹰贝精密轴承有限公司 | Piston Inner rises flat surface grinding frock |
| CN112276790A (en) * | 2020-11-13 | 2021-01-29 | 福建中策光电股份公司 | Novel anchor clamps and grinding device |
-
2017
- 2017-11-06 CN CN201721458357.XU patent/CN207593426U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107877280A (en) * | 2017-11-06 | 2018-04-06 | 无锡鹰贝精密轴承有限公司 | Piston Inner rises flat surface grinding frock |
| CN112276790A (en) * | 2020-11-13 | 2021-01-29 | 福建中策光电股份公司 | Novel anchor clamps and grinding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 11, Wenlin Huannan Road, Zhutang Town, Jiangyin City, Wuxi City, Jiangsu Province Patentee after: Wuxi Yingbei Precision Hydraulic Co., Ltd Address before: No. 11, Wenlin Huannan Road, Zhutang Town, Jiangyin City, Wuxi City, Jiangsu Province Patentee before: WUXI YINGBEI PRECISION BEARING Co.,Ltd. |