CN203380762U - Special jig for accurately grinding spindle taper holes - Google Patents
Special jig for accurately grinding spindle taper holes Download PDFInfo
- Publication number
- CN203380762U CN203380762U CN201320309615.3U CN201320309615U CN203380762U CN 203380762 U CN203380762 U CN 203380762U CN 201320309615 U CN201320309615 U CN 201320309615U CN 203380762 U CN203380762 U CN 203380762U
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- CN
- China
- Prior art keywords
- taper hole
- spindle
- excircle
- ground
- accurately
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- 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
The utility model discloses a special jig for accurately grinding spindle taper holes and belongs to the filed of machining. High taper hole precision is the main technical index of a spindle. In the prior art, in order to guarantee coaxiality of a taper hole and a journal, and conical surface roughness, a method that an excircle is accurately ground, and the taper hole is accurately ground after a plug is demounted; during clamping, a three-jaw clamps the right end of the spindle, an upper central frame supports the left end of the spindle, and the taper hole is ground after alignment; the method is difficult in alignment and adjustment, if the center height of a part deviates that of a grinding wheel, double-curve errors occur, coaxiality of the taper hole cannot be guaranteed, the accurately ground excircle is ground by three support points of the central frame, excircle surface roughness is affected, and roundness of the excircle is affected due to excessively large clamping force of the three-jaw. Aiming at the defects in the prior art, the utility model provides the special jig which comprises socket head cap screws, pressing plates and a sleeve. The jig is simple in structure, convenient to machine, and convenient in adjustment and alignment, and grinding precision can be guaranteed easily.
Description
Technical field
The utility model belongs to field of machining, relates in particular to a kind of special fixture that refines spindle taper hole.
Background technology
Main shaft with taper hole is one of common part in machining, and main shaft Morse's taper hole is called the instrument circular cone, and tapering approaches 1: 20, and effect is the precision centering of transmitting torque and processing, detection; The high-precision requirement of certain spindle taper hole is the key technical indexes of this main shaft, and the taper hole grinding is most important critical process in spindle processing; For the surface roughness of the axiality that will guarantee taper hole and bearing position and the conical surface adopts grinding core hole after first cylindrical grinding, be to pull down plug after fine cylindrical, then refine taper hole, typical clamping method is: three-jaw folder main shaft right-hand member, upper centre frame supporting left end, grinding taper hole after centering; It is large that but this method is adjusted the centering difficulty, if the center of part is high, to depart from the center of grinding head grinding wheel high, to produce hyperbolic error, the axiality index of taper hole still can't guarantee, simultaneously, the cylindrical that centre frame three fulcrums rub and refined in grinding process, affect the outer round surface roughness, in addition, the excessive circularity that also can affect cylindrical of three-jaw clamping force.
Summary of the invention
In order to solve the deficiencies in the prior art, the utility model provides a kind of special fixture that refines spindle taper hole, can process the high-precision main shaft taper hole after using this fixture.
In order to achieve the above object, the utility model by the following technical solutions: a kind of special fixture that refines spindle taper hole mainly is comprised of soket head cap screw, pressing plate and sleeve, and wherein, pressing plate is connected by soket head cap screw with sleeve.
A kind of special fixture that refines spindle taper hole, adopt 6 soket head cap screws to be uniformly distributed with sleeve and to be connected with 6 pressing plates.
The beneficial effects of the utility model are: with other installation way, compare, the special fixture component count of this fine grinding spindle taper hole is few, simple in structure, easy to process, it adopts rational auxiliary base transition, location and measurement by sleeve and the several high accuracy mating surfaces of part, be convenient to adjust centering, grinding accuracy easily guarantees, can reach the every high precision technology index request of cone hole machine.
The accompanying drawing explanation
Fig. 1 is a kind of special fixture structural representation that refines spindle taper hole.
Fig. 2 is a kind of special fixture clamping schematic diagram that refines spindle taper hole.
In figure: 1, soket head cap screw, 2, pressing plate, 3, sleeve, 4, main shaft, 5, grinder chuck.
The specific embodiment
As shown in fig. 1, a kind of special fixture that refines spindle taper hole, mainly be comprised of soket head cap screw 1, pressing plate 2 and sleeve 3, and wherein, pressing plate 2 is connected by soket head cap screw 1 with sleeve 3.
As shown in Figure 2, grinder chuck 5 is inhaled sleeve 3 lower surfaces, sleeve 3 endoporus of first main shaft 4 being packed into during use, and sleeve 3 upper surfaces lean main shaft 4 cylindrical right sides, then connect main shaft 4 and sleeve 3 with 6 M10 soket head cap screws 1 and pressing plate 2; School main shaft 4 cylindrical Φ 80g6 and beat<0.002mm of left side, the position of accurate adjustment main shaft 4 and special fixture assembly, tighten screw after adjusting to the right place; In process, utilize this special fixture, take the method for shaft shoulder location, global displacement centering, can guarantee that the centre of gyration line contour in the horizontal direction of taper hole center line and grinding head grinding wheel is adjusted to optimum.
Claims (2)
1. a special fixture that refines spindle taper hole, it is characterized in that: mainly soket head cap screw (1), pressing plate (2) and sleeve (3), consist of, wherein, pressing plate (2) is connected by soket head cap screw (1) with sleeve (3).
2. a kind of special fixture that refines spindle taper hole according to claim 1, is characterized in that: adopt 6 soket head cap screws (1) and 6 pressing plates (2) to be uniformly distributed with sleeve (3) and be connected; Grinder chuck (5) is inhaled sleeve (3) lower surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320309615.3U CN203380762U (en) | 2013-05-31 | 2013-05-31 | Special jig for accurately grinding spindle taper holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320309615.3U CN203380762U (en) | 2013-05-31 | 2013-05-31 | Special jig for accurately grinding spindle taper holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203380762U true CN203380762U (en) | 2014-01-08 |
Family
ID=49869288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320309615.3U Expired - Fee Related CN203380762U (en) | 2013-05-31 | 2013-05-31 | Special jig for accurately grinding spindle taper holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203380762U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103522180A (en) * | 2013-05-31 | 2014-01-22 | 洛阳嘉维轴承制造有限公司 | Clamp special for accurate grinding of taper hole of spindle |
-
2013
- 2013-05-31 CN CN201320309615.3U patent/CN203380762U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103522180A (en) * | 2013-05-31 | 2014-01-22 | 洛阳嘉维轴承制造有限公司 | Clamp special for accurate grinding of taper hole of spindle |
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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 |
Granted publication date: 20140108 Termination date: 20150531 |
|
| EXPY | Termination of patent right or utility model |