CN202097661U - Positioning device for end face of accurate grinding rotor - Google Patents
Positioning device for end face of accurate grinding rotor Download PDFInfo
- Publication number
- CN202097661U CN202097661U CN2011200778310U CN201120077831U CN202097661U CN 202097661 U CN202097661 U CN 202097661U CN 2011200778310 U CN2011200778310 U CN 2011200778310U CN 201120077831 U CN201120077831 U CN 201120077831U CN 202097661 U CN202097661 U CN 202097661U
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- CN
- China
- Prior art keywords
- positioning device
- face
- positioner
- rotor
- core bar
- 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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Abstract
A positioning device for an end face of an accurate grinding rotor belongs to the field of mechanical machining and grinding technology. The problem to be solved is to provide a positioning device for the end face of a rotor of an accurate grinding hydraulic steering vane pump. The positioning device adopts the following technical scheme that: the positioning device comprises a transmission shaft consisting of a polish rod, a lug boss and a spline mandrel, wherein the spline mandrel is positioned at the upper part of the positioning device, the middle part of the positioning device is provided with the lug boss, and the lower part of the positioning device is provided with the polish rod; the upper part of the spline mandrel is thinner and the lower part of the spline mandrel is thicker, and the conical degree of the spline mandrel is 3 degrees to 5 degrees. The positioning device is widely applicable to various accurate grinding equipment.
Description
Technical field
The utility model correct grinding rotor end-face positioner belongs to machining grinding technique field, is in order to locate a kind of positioner of fluid-link steering blade pump rotor specifically when finish grinding hydraulic pressure steering blade pump rotor end-face.
Background technology
Device in order to the location during existing correct grinding hydraulic pressure steering blade pump rotor end-face is the polished rod that the middle part has convex; Fixture for grinding machine clamps the polished rod bottom during use; The polished rod on convex top inserts in the rotor center splined hole; The convex upper surface supports the lower surface of rotor, the upper surface of correct grinding processing rotor.Owing to be to adopt matched in clearance between backstay top polished rod and the rotor splined hole, certain clearance is arranged between the two, rotor can not be completely fixed; Be prone to cause mobile, inclination; Therefore, rotor end-face and the squareness tolerance between the splined hole that grinding is come out are bigger, and precision is lower.
The utility model content
The utility model provides a kind of positioner when finish grinding hydraulic pressure steering blade pump rotor end-face, and positioning stablity is reliable, and rotor does not have and rocks, and has improved machining accuracy and operating efficiency.
In order to address the above problem; The scheme that the utility model adopts is: correct grinding rotor end-face positioner; Said positioner is formed a power transmission shaft by polished rod, convex and spline core bar; The spline core bar is positioned at the top of said positioner, and the middle part of said positioner is a convex, and the bottom of said positioner is a polished rod.
Said spline core bar top is an optical axis, and spline core bar bottom is a spline.
The optical axis top of said spline core bar is thinner, and the bottom is thicker, and the tapering of optical axis is 3 °-5 °.
The utility model beneficial effect compared with prior art is: when adopting the utility model correct grinding rotor end-face positioner correct grinding hydraulic pressure steering blade pump rotor end-face; Because the profile of tooth of rotor splined hole all contacts with the profile of tooth of spline core bar; Very close to each other between the two, positioning stablity is reliable, and rotor does not have and rocks; Therefore it is very little to finish grind the rotor end-face and the squareness tolerance between the rotor splined hole that process; Machining accuracy is improved a lot, and work-handling simultaneously is convenient, has improved operating efficiency.
Description of drawings
Fig. 1 is the structural representation of the utility model correct grinding rotor end-face positioner.
Fig. 2 is the utility model user mode reference diagram.
Among the figure: 1-polished rod, 2-convex, 3-spline core bar, 4-rotor.
The specific embodiment
The utility model correct grinding rotor end-face positioning device structure as shown in Figure 1; Said positioner is formed a power transmission shaft by polished rod 1, convex 2 and spline core bar 3; Spline core bar 3 is positioned at the top of said positioner; The middle part of said positioner is a convex 2, and the bottom of said positioner is a polished rod 1.Said spline core bar 3 tops are an optical axis, and spline core bar 3 bottoms are spline.The optical axis top of said spline core bar 3 is thinner, and the bottom is thicker, and the tapering of optical axis is 3 °-5 °.
As shown in Figure 2; During use, correct grinding rotor end-face positioner bottom polished rod 1 is fixed by fixture for grinding machine, and top involute spline core bar 3 inserts in processed rotor 4 splined holes; Rotor 4 lower surfaces are near the upper surface of correct grinding rotor end-face positioner middle part convex 2, the upper surface of grinding rotor 4.
Claims (3)
1. finish grind the rotor end-face positioner; It is characterized in that: said positioner is formed a power transmission shaft by polished rod (1), convex (2) and spline core bar (3); Spline core bar (3) is positioned at the top of said positioner; The middle part of said positioner is convex (2), and the bottom of said positioner is polished rod (1).
2. according to the said correct grinding rotor end-face of claim 1 positioner, it is characterized in that: said spline core bar (3) top is an optical axis, and spline core bar (3) bottom is a spline.
3. according to the said correct grinding rotor end-face of claim 2 positioner, it is characterized in that: the optical axis top of said spline core bar (3) is thinner, and the bottom is thicker, and the tapering of optical axis is 3 °-5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200778310U CN202097661U (en) | 2011-03-23 | 2011-03-23 | Positioning device for end face of accurate grinding rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200778310U CN202097661U (en) | 2011-03-23 | 2011-03-23 | Positioning device for end face of accurate grinding rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202097661U true CN202097661U (en) | 2012-01-04 |
Family
ID=45383694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200778310U Expired - Fee Related CN202097661U (en) | 2011-03-23 | 2011-03-23 | Positioning device for end face of accurate grinding rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202097661U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179769A (en) * | 2011-03-23 | 2011-09-14 | 长治液压有限公司 | Locating shaft used in accurately grinding rotor end surface |
-
2011
- 2011-03-23 CN CN2011200778310U patent/CN202097661U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179769A (en) * | 2011-03-23 | 2011-09-14 | 长治液压有限公司 | Locating shaft used in accurately grinding rotor end surface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20140323 |