CN203875696U - 45-degree center with key special for grinder - Google Patents
45-degree center with key special for grinder Download PDFInfo
- Publication number
- CN203875696U CN203875696U CN201420315452.4U CN201420315452U CN203875696U CN 203875696 U CN203875696 U CN 203875696U CN 201420315452 U CN201420315452 U CN 201420315452U CN 203875696 U CN203875696 U CN 203875696U
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- CN
- China
- Prior art keywords
- piston pin
- grinder
- degree
- center
- key
- 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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- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The utility model relates to the technical field of positioning fixtures, in particular to a 45-degree center with a key special for a grinder. The chamfers at the two ends of a traditional piston pin are respectively 60 degrees, and the piston pin can be fixed firmly through an ordinary grinder easily, but for a piston pin with the special size of 45 degrees, and moreover a technological hole for grinding is not allowed to be reserved in the end face of the 45-degree piston pin, the 45-degree piston pin cannot be machined at all through an ordinary cylindrical grinder. The 45-degree center with the key special for the grinder comprises a center body, a rotary shaft and a rolling bearing, wherein the center body is fixed to the rotary shaft through the rolling bearing, the center body is a cone frustum, the taper angle is 45 degrees, and a positioning key is arranged on the conical surface of the center body. The improved 45-degree center with the key special for the grinder is accurate in positioning and convenient and stable to clamp and effectively solves the problem of cylindrical grinding of the 45-degree piston pin.
Description
Technical field
The utility model relates to positioning fixture technical field, especially a kind of 45 ° of band key grinding machine center specials.
Background technology
Top is machine tool component in machining, has two kinds of stationary center and rolling centers.Grinding machine center special is used for fixing piston pin, traditional piston pin two chamfers are 60 °, common grinding machine can be fixed easily, and for the piston pin that has 45 ° of specific dimensions, add that 45 ° of piston pin end faces do not allow to leave grinding fabrication hole, plain external grinding machine cannot be processed at all.
Utility model content
In order to overcome existing above-mentioned deficiency, the utility model provides a kind of 45 ° of band key grinding machine center specials.
The utility model solves the technical scheme that its technical problem adopts: a kind of 45 ° of band key grinding machine center specials, comprise top, rotating shaft and rolling bearing, described be toply fixed on rotating shaft by rolling bearing, described top be circular cone stage body, cone angle is 45 °.
According to another embodiment of the present utility model, further comprise that the described top conical surface is provided with positioning key.
The beneficial effects of the utility model are, registration, and convenient mounting and clamping, firm, effectively solves 45 ° of piston pin cylindricalo grinding problems.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
In figure, 1. is top, 2. rotating shaft, 3. rolling bearing, 4. positioning key.
The specific embodiment
If Fig. 1 is structural representation of the present utility model, a kind of 45 ° of band key grinding machine center specials, comprise top 1, rotating shaft 2 and rolling bearing 3, described top 1 is fixed on rotating shaft 2 by rolling bearing 3, described top 1 is circular cone stage body, and cone angle is 45 °, and described top 1 the conical surface is provided with positioning key 4.
Add man-hour, first by top 1, be connected by tapering with machine tool chief axis, then utilize 45 ° of chamferings of top 45 ° of orientational cone-shaped surfaces and workpiece to coordinate to come positioning workpieces, then by top upper positioning key 4, coordinate with workpiece keyway, by positioning key 4, drive workpiece with top rotation, realize the grinding of excircle of workpiece.
45 ° of band key grinding machine center special registrations after improvement, convenient mounting and clamping, firm, effectively solves 45 ° of piston pin cylindricalo grinding problems.
Claims (2)
1. 45 ° of band key grinding machine center specials, comprise top (1), rotating shaft (2) and rolling bearing (3), described top (1) is fixed on rotating shaft (2) by rolling bearing (3), it is characterized in that, described top (1) is circular cone stage body, and cone angle is 45 °.
2. 45 ° of band key grinding machine center specials according to claim 1, is characterized in that, the conical surface of described top (1) is provided with positioning key (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420315452.4U CN203875696U (en) | 2014-06-14 | 2014-06-14 | 45-degree center with key special for grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420315452.4U CN203875696U (en) | 2014-06-14 | 2014-06-14 | 45-degree center with key special for grinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203875696U true CN203875696U (en) | 2014-10-15 |
Family
ID=51676239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420315452.4U Expired - Fee Related CN203875696U (en) | 2014-06-14 | 2014-06-14 | 45-degree center with key special for grinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203875696U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107671718A (en) * | 2017-09-22 | 2018-02-09 | 哈尔滨汽轮机厂有限责任公司 | A kind of special power transmission shaft of taper pin reconditioning and its method for grinding |
-
2014
- 2014-06-14 CN CN201420315452.4U patent/CN203875696U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107671718A (en) * | 2017-09-22 | 2018-02-09 | 哈尔滨汽轮机厂有限责任公司 | A kind of special power transmission shaft of taper pin reconditioning and its method for grinding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20210614 |