CN103105153A - Radial locating method of main shaft of roundness measuring instrument - Google Patents
Radial locating method of main shaft of roundness measuring instrument Download PDFInfo
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- CN103105153A CN103105153A CN2013100260150A CN201310026015A CN103105153A CN 103105153 A CN103105153 A CN 103105153A CN 2013100260150 A CN2013100260150 A CN 2013100260150A CN 201310026015 A CN201310026015 A CN 201310026015A CN 103105153 A CN103105153 A CN 103105153A
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- main shaft
- roundness measuring
- measuring equipment
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Abstract
The invention discloses a radial locating method of a main shaft of a roundness measuring instrument. The radial locating method of the main shaft of the roundness measuring instrument is characterized in that an elastic compression rod is arranged at one side of the main shaft of the roundness measuring instrument to guarantee that the main shaft of the roundness measuring instrument is always pressed toward the same direction A, at least two support abutting-against parts which abutts against the main shaft of the roundness measuring instrument are arranged at the other side of the main shaft of the roundness measuring instrument, arrangement position of each support abutting-against part is met, an included angle between the support force direction of each support abutting-against part to the main shaft of the roundness measuring instrument and the direction A is capable of being greater than 90 degrees, the main shaft of the roundness measuring instrument always contacts with the support abutting-against parts due to applied force of the elastic compression rod, and machining error of journal of the main shaft of the roundness measuring instrument and installation error of the main shaft of the roundness measuring instrument are eliminated by combined action of a support device which is formed by combination of the elastic compression rod and the support abutting-against parts. Compared with the prior art, the radial locating method of the main shaft of the roundness measuring instrument is capable of obtaining rotation accuracy of the main shaft with high accuracy.
Description
Technical field
The present invention relates to a kind of radial location method of roundness measuring equipment main shaft.
Background technology
When the circularity of use roundness measuring equipment Parts Measurement, cylindricity, measured workpiece is put on rotary table, the error information on measuring workpieces surface when making workpiece rotating, by sensing device, data are passed to evaluation system, the rotary main shaft of roundness measuring equipment as reference axis of rotation, is the measuring basis that roundness measuring equipment is measured circularity, cylindricity etc.Traditional roundness measuring equipment main shaft mainly adopts revolution air bearing and two kinds of methods of three-point fix to realize the radial location of roundness measuring equipment main shaft.Although revolution air bearing support accuracy is high, but requirement on machining accuracy is high, and the performance of air bearing depends on the quality of source of the gas to a great extent, produce the reliable and stable pressurized air of cleaning and not only can improve the roundness measuring equipment cost, greatly increase simultaneously the volume of roundness measuring equipment, also can bring the problems such as noise.Although the three-point fix mode does not have the problems referred to above, its bearing accuracy depends on the machining precision of roundness measuring equipment main shaft axle journal fully, and the three-point fix mode makes spindle rotation accuracy lower than the machining precision of main shaft axle journal.
In order to give full play to the advantage of main shaft sliding bearing supporting way, the rotating accuracy that must improve the roundness measuring equipment main shaft could satisfy production requirement.In identical yield-power situation, want to improve the roundness measuring equipment spindle rotation accuracy, must improve the roundness measuring equipment main shaft supporting structure, improve its rotating accuracy.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of roundness measuring equipment main shaft axle journal radial error of can automatically eliminating on the radial location method of the roundness measuring equipment main shaft of spindle rotation accuracy impact for above-mentioned prior art.
The present invention solves the problems of the technologies described above the technical scheme that adopts: the radial location method of this roundness measuring equipment main shaft is characterized in that:
A side at the roundness measuring equipment main shaft arranges elastic pressure bar, guarantees that the roundness measuring equipment main shaft is pressed towards a direction A all the time;
In at least two support abutment that offset with the roundness measuring equipment main shaft of roundness measuring equipment main shaft opposite side setting, every setting position that supports abutment satisfies: every is supported abutment and must spend greater than 90 anchorage force direction and the angle between direction A of roundness measuring equipment main shaft;
The roundness measuring equipment main shaft contacts with the support abutment under the acting force of elastic pressure bar all the time, the mismachining tolerance of roundness measuring equipment main shaft axle journal and roundness measuring equipment master's alignment error are eliminated by elastic pressure bar and the common bracing or strutting arrangement acting in conjunction that forms of support abutment, thereby in the situation that allow the main shaft axle journal and install to have error, obtain high-precision spindle rotation accuracy.
Described support abutment is provided with two, and described elastic pressure bar is positioned on the angular bisector of described two support abutment and roundness measuring equipment angle that main shaft consists of.
Described support abutment also can arrange four, and first supports abutment and second supports low-grade part and be positioned at direction A one side, and first supports abutment summit and second supports the mid point that low-grade part summit is connected and be connected the rear straight line B of being with roundness measuring equipment alignment of shafts point; The 3rd support abutment and the 4th supports low-grade part and is positioned at direction A opposite side, the 3rd supports abutment summit and the 4th supports the mid point that low-grade part summit is connected and is connected the rear straight line C of being with roundness measuring equipment alignment of shafts point, and described elastic pressure bar is positioned on the angular bisector of straight line B and straight line angle that C consists of.
Described support abutment is provided with eight, the 5th supports abutment, the 6th low-grade part of support, the 7th support abutment and the 8th low-grade part of support is positioned at direction A one side, the 5th supports abutment summit and the 6th, and to support the mid point that low-grade part summit is connected be D, the 7th supports abutment summit and the 8th, and to support the mid point that low-grade part summit is connected be E, and the mid point of straight line DE and roundness measuring equipment alignment of shafts point are connected to straight line F; The 9th supports abutment, the tenth low-grade part of support, the 11 support abutment and the low-grade part of twelve earthly branches support is positioned at direction A opposite side, the 9th supports abutment summit and the tenth, and to support the mid point that low-grade part summit is connected be G, the 11 to support the mid point that the abutment summit is connected with the twelve earthly branches low-grade part of support summit be H, and the mid point of straight line GH and roundness measuring equipment alignment of shafts point are connected to straight line I; Described elastic pressure bar is positioned on the angular bisector of straight line F straight line angle that I consists of.
Preferably, described support abutment is V-shaped.
Compared with prior art, the invention has the advantages that: by elastic pressure bar being set by the roundness measuring equipment main shaft and supporting low-grade part, the roundness measuring equipment main shaft contacts with the support abutment under the acting force of elastic pressure bar all the time, the mismachining tolerance of roundness measuring equipment main shaft axle journal and roundness measuring equipment master's alignment error are eliminated by elastic pressure bar and the common bracing or strutting arrangement acting in conjunction that forms of support abutment, thereby in the situation that allow the main shaft axle journal and install to have error, obtain high-precision spindle rotation accuracy.
Description of drawings
Fig. 1 is kinematic sketch of mechanism in the embodiment of the present invention one;
Fig. 2 is kinematic sketch of mechanism in the embodiment of the present invention two;
Fig. 3 is kinematic sketch of mechanism in the embodiment of the present invention three.
Embodiment
Embodiment is described in further detail the present invention below in conjunction with accompanying drawing.
Embodiment one:
The radial location method of roundness measuring equipment main shaft provided by the invention, its side at roundness measuring equipment main shaft 1 arranges elastic pressure bar 2, guarantees that roundness measuring equipment main shaft 1 is pressed towards a direction A all the time; At roundness measuring equipment main shaft opposite side, two support abutment 3,4 that offset with the roundness measuring equipment main shaft are set, these two setting positions that support abutment satisfy: every is supported abutment and must spend greater than 90 anchorage force direction and the angle between direction A of roundness measuring equipment main shaft; And described elastic pressure bar 2 be positioned at described two support abutment 3,4 and roundness measuring equipment main shaft 1 consist of on the angular bisector of angle.Two are supported the V-shaped structure of abutment.
If roundness measuring equipment main shaft axle journal diameter is 60, when main shaft axle journal circularity is 0.0001mm, the oscillating quantity of the axis of rotation of roundness measuring equipment main shaft is 0.000059mm at this moment, is 1/2 of main shaft axle journal circularities, adopts this localization method to improve the radial location precision of roundness measuring equipment axle journal.
The principle of work of the present embodiment is: roundness measuring equipment main shaft 1 all the time with two V-types under the effect of elastic pressure bar 2 support abutment and contact, roundness measuring equipment main shaft 1 axle journal exists makes mismachining tolerance and alignment error, these errors by two V-types support abutment 3,4 and the common bracing or strutting arrangement acting in conjunction that forms of elastic pressure bar eliminated, thereby in the situation that allow the main shaft axle journal to have error, obtain high-precision spindle rotation accuracy.
Embodiment two
Different from embodiment one is, support abutment and be provided with four, first supports abutment 5 and second supports low-grade part 6 and is positioned at direction A one side, and first supports abutment 5 summits and second supports the mid point that low-grade part 6 summits are connected and be connected the rear straight line B of being with roundness measuring equipment alignment of shafts point; The 3rd support abutment 7 and the 4th supports low-grade part 8 and is positioned at direction A opposite side, the 3rd supports abutment summit and the 4th supports the mid point that low-grade part summit is connected and is connected the rear straight line C of being with roundness measuring equipment alignment of shafts point, described elastic pressure bar is positioned on the angular bisector of straight line B and straight line angle that C consists of, and is shown in Figure 2.
If roundness measuring equipment main shaft axle journal diameter is 60, when main shaft axle journal circularity is 0.0001mm, the oscillating quantity of the axis of rotation of roundness measuring equipment main shaft is 0.000030mm at this moment, is 1/3 of main shaft axle journal circularities, adopts this localization method to improve the radial location precision of roundness measuring equipment axle journal.
Embodiment three
Different from embodiment one is, support abutment and be provided with eight, the 5th supports abutment 9, the 6th low-grade part 10 of support, the 7th support abutment 11 and the 8th low-grade part 12 of support is positioned at direction A one side, the 5th supports abutment 9 summits and the 6th, and to support the mid point that low-grade part 10 summits are connected be D, the 7th supports abutment 11 summits and the 8th, and to support the mid point that low-grade part 12 summits are connected be E, and the mid point of straight line DE and roundness measuring equipment alignment of shafts point are connected to straight line F; The 9th supports abutment 13, the tenth low-grade part 14 of support, the 11 support abutment 15 and the low-grade part 16 of twelve earthly branches support is positioned at direction A opposite side, the 9th supports abutment 13 summits and the tenth, and to support the mid point that low-grade part 14 summits are connected be G, the 11 to support the mid point that abutment 15 summits are connected with the twelve earthly branches low-grade part of support 16 summits be H, and the mid point of straight line GH and roundness measuring equipment alignment of shafts point are connected to straight line I; Described elastic pressure bar is positioned on the angular bisector of straight line F straight line angle that I consists of.Shown in Figure 3.If roundness measuring equipment main shaft axle journal diameter is 60, when main shaft axle journal circularity is 0.0001mm, the oscillating quantity of the axis of rotation of roundness measuring equipment main shaft is 0.000016mm at this moment, is 1/5 of main shaft axle journal circularities, adopts this localization method to improve the radial location precision of roundness measuring equipment axle journal.
Claims (5)
1. the radial location method of a roundness measuring equipment main shaft is characterized in that:
A side at the roundness measuring equipment main shaft arranges elastic pressure bar, guarantees that the roundness measuring equipment main shaft is pressed towards a direction A all the time;
In at least two support abutment that offset with the roundness measuring equipment main shaft of roundness measuring equipment main shaft opposite side setting, every setting position that supports abutment satisfies: every is supported abutment and must spend greater than 90 anchorage force direction and the angle between direction A of roundness measuring equipment main shaft;
The roundness measuring equipment main shaft contacts with the support abutment under the acting force of elastic pressure bar all the time, and the mismachining tolerance of roundness measuring equipment main shaft axle journal and roundness measuring equipment master's alignment error are eliminated by elastic pressure bar and the common bracing or strutting arrangement acting in conjunction that forms of support abutment.
2. the radial location method of roundness measuring equipment main shaft according to claim 1, it is characterized in that: described support abutment is provided with two, and described elastic pressure bar is positioned on described two angular bisectors that support abutment and roundness measuring equipment angle that main shaft consists of.
3. the radial location method of roundness measuring equipment main shaft according to claim 1, it is characterized in that: described support abutment is provided with four, first supports abutment and second supports low-grade part and is positioned at direction A one side, and first supports abutment summit and second supports the mid point that low-grade part summit is connected and be connected the rear straight line B of being with roundness measuring equipment alignment of shafts point; The 3rd support abutment and the 4th supports low-grade part and is positioned at direction A opposite side, the 3rd supports abutment summit and the 4th supports the mid point that low-grade part summit is connected and is connected the rear straight line C of being with roundness measuring equipment alignment of shafts point, and described elastic pressure bar is positioned on the angular bisector of straight line B and straight line angle that C consists of.
4. the radial location method of roundness measuring equipment main shaft according to claim 1, it is characterized in that: described support abutment is provided with eight, the 5th supports abutment, the 6th low-grade part of support, the 7th support abutment and the 8th low-grade part of support is positioned at direction A one side, the 5th supports abutment summit and the 6th, and to support the mid point that low-grade part summit is connected be D, the 7th supports abutment summit and the 8th, and to support the mid point that low-grade part summit is connected be E, and the mid point of straight line DE and roundness measuring equipment alignment of shafts point are connected to straight line F; The 9th supports abutment, the tenth low-grade part of support, the 11 support abutment and the low-grade part of twelve earthly branches support is positioned at direction A opposite side, the 9th supports abutment summit and the tenth, and to support the mid point that low-grade part summit is connected be G, the 11 to support the mid point that the abutment summit is connected with the twelve earthly branches low-grade part of support summit be H, and the mid point of straight line GH and roundness measuring equipment alignment of shafts point are connected to straight line I; Described elastic pressure bar is positioned on the angular bisector of straight line F straight line angle that I consists of.
5. the radial location method of the described roundness measuring equipment main shaft of any one claim according to claim 1～4, it is characterized in that: described support abutment is V-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100260150A CN103105153A (en) | 2013-01-23 | 2013-01-23 | Radial locating method of main shaft of roundness measuring instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100260150A CN103105153A (en) | 2013-01-23 | 2013-01-23 | Radial locating method of main shaft of roundness measuring instrument |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5359784A (en) * | 1991-05-02 | 1994-11-01 | Tokyo Seimitsu Co., Ltd. | Method of centering in roundness measuring instrument and system therefor |
| JPH0843075A (en) * | 1994-07-27 | 1996-02-16 | Tokyo Seimitsu Co Ltd | Portable roundness measuring instrument |
| CN1645047A (en) * | 2005-01-20 | 2005-07-27 | 哈尔滨工业大学 | Single-transposition roundness fault separating method |
| CN201532180U (en) * | 2009-09-28 | 2010-07-21 | 上海联合滚动轴承有限公司 | Device for measuring ellipticity of wind-power main bearing |
| CN102062594A (en) * | 2010-12-01 | 2011-05-18 | 洛阳轴研科技股份有限公司 | Method for measuring cylindricity of round workpiece |
-
2013
- 2013-01-23 CN CN2013100260150A patent/CN103105153A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5359784A (en) * | 1991-05-02 | 1994-11-01 | Tokyo Seimitsu Co., Ltd. | Method of centering in roundness measuring instrument and system therefor |
| JPH0843075A (en) * | 1994-07-27 | 1996-02-16 | Tokyo Seimitsu Co Ltd | Portable roundness measuring instrument |
| CN1645047A (en) * | 2005-01-20 | 2005-07-27 | 哈尔滨工业大学 | Single-transposition roundness fault separating method |
| CN201532180U (en) * | 2009-09-28 | 2010-07-21 | 上海联合滚动轴承有限公司 | Device for measuring ellipticity of wind-power main bearing |
| CN102062594A (en) * | 2010-12-01 | 2011-05-18 | 洛阳轴研科技股份有限公司 | Method for measuring cylindricity of round workpiece |
Non-Patent Citations (2)
| Title |
|---|
| 张玉环: "滚针轴承保持架的径向定位问题", 《轴承》 * |
| 邵大钟等: "误差分离技术和圆度仪径向", 《计量技术》 * |
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Application publication date: 20130515 |