CN109141211A - The On-line Measuring Method of screw rotor diameter - Google Patents
The On-line Measuring Method of screw rotor diameter Download PDFInfo
- Publication number
- CN109141211A CN109141211A CN201811057440.5A CN201811057440A CN109141211A CN 109141211 A CN109141211 A CN 109141211A CN 201811057440 A CN201811057440 A CN 201811057440A CN 109141211 A CN109141211 A CN 109141211A
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- CN
- China
- Prior art keywords
- screw rotor
- diameter
- gauge block
- measuring method
- line measuring
- 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.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/12—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring diameters
Abstract
The invention discloses a kind of On-line Measuring Methods of screw rotor diameter, comprising the following steps: (1) is required to process screw rotor on lathe according to size；(2) production standard gauge block is required according to the size to screw rotor, standard gauge block diameter is less than screw rotor diameter, and using the actual diameter d of miking standard gauge block, standard gauge block is stuck on the spindle nose of screw rotor at least one end；(3) screw rotor diameter D=d+2h is obtained using the diameter difference h between the displacement sensor screw rotor and standard gauge block in the knife rest of lathe or bistrique position installation displacement sensor.The present invention obtains the diameter dimension of screw rod using indirect measurement method, can not only increase measurement and machining accuracy, and also improve production efficiency with on-line measurement, and the present invention can be used for the screw rotor diameter measurement of any specification, use cost is lower.
Description
Technical field
The present invention relates to the field of precision measurement of screw rotor, more particularly, to a kind of on-line measurement of screw rotor diameter
Method.
Background technique
Screw rotor complex contour, the required precision of type face are very high, and its outer round surface is incomplete surface, can not be adopted
With gage measurings such as ordinary micrometers.If non-on-line measurement can only be carried out using three coordinate measuring machine simultaneously, that is, need to add
Screw rotor after work is first unloaded from lathe, is again mounted to after measurement and is continued to process on lathe, can bring so more
The error of secondary installation workpiece, the adverse effects such as tool-setting error, to influence screw rod machining accuracy.And it is due to screw rotor
Column specification is numerous, and diameter dimension changes greatly, and usual measurement method needs the measurer of multiple specifications that could complete, and measures work
It is quite cumbersome.
Summary of the invention
The present invention is above-mentioned in order to overcome the shortcomings of, provides a kind of spiral shell in screw rotor measurement without unloading from lathe
The On-line Measuring Method of bar root diameter, comprising the following steps:
(1) it is required to process screw rotor on lathe according to size；
(2) production standard gauge block being required according to the size to screw rotor, standard gauge block diameter is less than screw rotor diameter,
And using the actual diameter d of miking standard gauge block, standard gauge block is stuck on the spindle nose of screw rotor at least one end；By
It is different in the two-end structure of screw rotor, it can be stuck on the spindle nose of screw rotor both ends using standard gauge block, to screw rod
Two ends of rotor measures.
(3) displacement sensor is installed in the knife rest of lathe or bistrique position, using the displacement sensor screw rotor
Diameter difference h between standard gauge block obtains screw rotor diameter D=d+2h；Diameter is measured to screw rotor both ends when simultaneously
After difference, the conicity at screw rotor outer circle both ends, the geometric tolerances such as cylindricity can also be obtained by calculating.
Since displacement sensor in the range of its stroke is 10mm up to 0.01 μm, get the bid its measurement accuracy by step (2)
Quasi- gauge block exradius is 0-10mm smaller than screw rotor exradius, and such setting is sufficient for screw diameter measurement request,
With the high advantage of measurement accuracy.
Preferably, the diameter difference in screw rotor between at least two circle screw threads and standard gauge block is at least measured in step (3),
H is averaged, and knife rest or bistrique are mounted on bed ways, and guide rail is parallel with the axis of screw rotor, and knife rest or bistrique can bands
Dynamic displacement sensor is moved along guide rail, simultaneously because screw rotor itself can be rotatable around its axis, can be measured in this way
The diameter dimension of the full-scale length of screw rotor and each screw thread outer round surface obtains more comprehensive screw diameter precision.
Preferably, the standard gauge block includes gauge block main body, and gauge block main body is circle, and a card is provided in gauge block main body
Slot, the outer end opening of card slot, inner end is arc-shaped, and the center of circle of arc-shaped inner end is the center of circle of gauge block main body, and arc-shaped interior
The radius at end is equal with the radius of screw rotor spindle nose, and the width of card slot outer end is also equal with the radius of screw rotor spindle nose, amount
Block main body is stuck on the spindle nose of screw rotor by card slot.
Preferably, institute's displacement sensors are differential transformer displacement transducer, since differential transformer type displacement passes
The structure of sensor is smaller, therefore can extend into inside the helicla flute of screw rotor, and is capable of measuring the bottom diameter of screw rod.
The beneficial effects of the present invention are:
The present invention obtains the diameter dimension of screw rod using indirect measurement method, can be with on-line measurement, without unloading rotor
Under, the error that rotor is repeatedly installed is avoided, piece handling time is reduced, not only increases measurement and machining accuracy, and
Also improve production efficiency.
For the screw rotor of different size, using the present invention come when measuring, it is only necessary to which standard gauge block is changed to correspondence
Screw rotor diameter, and guarantee that gauge block and root diameter difference are less than 10mm.Therefore the present invention can be used for any specification
Screw rotor diameter measurement, use cost is lower.
Detailed description of the invention
Examples of the present invention will be described by way of reference to the accompanying drawings, in which:
Schematic diagram when Fig. 1 is present invention measurement；
Fig. 2 is the schematic diagram of standard gauge block.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
A kind of On-line Measuring Method in screw rotor measurement without the screw rotor diameter unloaded from lathe, including with
Lower step:
(1) it is required to process screw rotor on lathe according to size；
(2) production standard gauge block is required according to the size to screw rotor, as shown in Fig. 2, standard gauge block includes gauge block master
Body, gauge block main body are circle, and a clamp bar slot 7, the outer end opening of card slot 7 are provided in gauge block main body, and inner end is arc-shaped, and round
The center of circle of arc inner end is the center of circle of gauge block main body, and the radius of arc-shaped inner end is equal with the radius of screw rotor spindle nose, card
The width of slot outer end is also equal with the radius of screw rotor spindle nose.As shown in Figure 1,2 diameter of standard gauge block is less than screw rotor 1 directly
Diameter, and using the actual diameter d of miking standard gauge block, standard gauge block 1 is stuck in screw rotor 2 at least one by card slot
On the spindle nose 3 at end；Since the two-end structure of screw rotor is different, screw rotor two end axles can be stuck in using standard gauge block
On head, to be measured to screw rotor both ends；
(3) differential transformer displacement transducer 5 is installed in the position of the knife rest of lathe or bistrique 4, using the differential change
Diameter difference h between depressor formula displacement sensor screw rotor and standard gauge block obtains screw rotor diameter D=d+2h；
After measuring diameter difference to screw rotor both ends simultaneously, screw rotor outer circle both ends can also be calculated by existing formula
Conicity, geometric tolerances such as cylindricity, and since the structure of differential transformer displacement transducer is smaller can stretch
Enter to inside the helicla flute of screw rotor, and is capable of measuring the bottom diameter of screw rod.
Due to differential transformer displacement transducer its stroke be 10mm in the range of its measurement accuracy up to 0.01 μm,
Step (2) Plays gauge block exradius is 0-10mm smaller than screw rotor exradius, and it is straight that such setting is sufficient for screw rod
Diameter measurement request, with the high advantage of measurement accuracy.
Preferably, the diameter difference in screw rotor between at least two circle screw threads and standard gauge block is at least measured in step (3),
H is averaged, and knife rest or bistrique are mounted on bed ways 6, and guide rail is parallel with the axis of screw rotor, and knife rest or bistrique can bands
Dynamic differential transformer displacement transducer is moved along guide rail, simultaneously because screw rotor itself can be rotatable around its axis, this
Sample can measure the diameter dimension of the full-scale length of screw rotor and each screw thread outer round surface, and it is straight to obtain more comprehensive screw rod
Diameter precision.
Relative to the existing measurement method to screw rotor, ordinary micrometer is unable to measure incomplete outside diameter, and surveys
Accuracy of measurement is poor；And screw rotor diameter dimension is usually between 100-400mm, due to differential transformer displacement transducer
Range limitation, can not also directly be measured at present using differential transformer displacement transducer.And the present invention uses standard gauge block,
And guarantee that the difference of standard gauge block and screw diameter is less than 10mm, since differential transformer displacement transducer is 10mm in its stroke
In the range of its measurement accuracy up to 0.01 μm, therefore the difference of the diameter of 10mm can guarantee differential transformer displacement transducer
Measurement stroke range, and obtain high measurement accuracy.
The present invention obtains the diameter dimension of screw rod using indirect measurement method, can be with on-line measurement, without unloading rotor
Under, the error that rotor is repeatedly installed is avoided, piece handling time is reduced, not only increases measurement and machining accuracy, and
Also improve production efficiency.For the screw rotor of different size, using the present invention come when measuring, it is only necessary to more by standard gauge block
It is changed to corresponding screw rotor diameter, and guarantees that gauge block and root diameter difference are less than 10mm.Therefore the present invention can be used for
The screw rotor diameter measurement of any specification, use cost are lower.
It is above-mentioned according to the present invention for enlightenment, through the above description, relevant staff completely can without departing from
In the range of this invention technical idea, various changes and amendments are carried out.The technical scope of this invention is not limited to
In the content on specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (8)
1. a kind of On-line Measuring Method of screw rotor diameter, which comprises the following steps:
(1) it is required to process screw rotor on lathe according to size；
(2) production standard gauge block is required according to the size to screw rotor, standard gauge block diameter is less than screw rotor diameter, and adopts
With the actual diameter d of miking standard gauge block, standard gauge block is stuck on the spindle nose of screw rotor at least one end；
(3) displacement sensor is installed in the knife rest of lathe or bistrique position, using the displacement sensor screw rotor and mark
Diameter difference h between quasi- gauge block obtains screw rotor diameter D=d+2h.
2. the On-line Measuring Method of screw rotor diameter according to claim 1, which is characterized in that step (2) Plays
Gauge block exradius is 0-10mm smaller than screw rotor exradius.
3. the On-line Measuring Method of screw rotor diameter according to claim 1, which is characterized in that in step (3) at least
The diameter difference in screw rotor between at least two circle screw threads and standard gauge block is measured, h is averaged.
4. the On-line Measuring Method of screw rotor diameter according to claim 1, which is characterized in that the knife in step (3)
Frame or bistrique are mounted on bed ways, and knife rest or bistrique can drive displacement sensor to move along guide rail.
5. the On-line Measuring Method of screw rotor diameter according to claim 4, which is characterized in that guide rail and screw rotor
Axis it is parallel.
6. the On-line Measuring Method of screw rotor diameter according to claim 1, which is characterized in that the standard gauge block packet
Gauge block main body is included, gauge block main body is circle, a clamp bar slot, the outer end opening of card slot is provided in gauge block main body, inner end is circular arc
Shape, and the center of circle of arc-shaped inner end is the center of circle of gauge block main body.
7. the On-line Measuring Method of screw rotor diameter according to claim 6, which is characterized in that the half of arc-shaped inner end
Diameter is equal with the radius of screw rotor spindle nose.
8. the On-line Measuring Method of screw rotor diameter described in any one of -7 according to claim 1, which is characterized in that described
Unique sensor is differential transformer displacement transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811057440.5A CN109141211A (en) | 2018-09-11 | 2018-09-11 | The On-line Measuring Method of screw rotor diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811057440.5A CN109141211A (en) | 2018-09-11 | 2018-09-11 | The On-line Measuring Method of screw rotor diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109141211A true CN109141211A (en) | 2019-01-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811057440.5A Pending CN109141211A (en) | 2018-09-11 | 2018-09-11 | The On-line Measuring Method of screw rotor diameter |
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| CN (1) | CN109141211A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114523417A (en) * | 2022-03-15 | 2022-05-24 | 常州曲线数控科技有限公司 | Method for detecting diameter of grinding wheel of roll grinder |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5655836A (en) * | 1979-08-01 | 1981-05-16 | Mauser Werke Oberndorf | Thread detector |
| CN201098802Y (en) * | 2007-08-13 | 2008-08-13 | 济南泰思特仪器有限公司 | Hydraulic electric broaching machine fixture |
| CN101329159A (en) * | 2008-07-29 | 2008-12-24 | 浙江大学 | Resistor strain type apparatus for measuring diameter and its use method |
| CN101750006A (en) * | 2009-12-25 | 2010-06-23 | 重庆大学 | Error detection device for hourglass worm |
| CN102506689A (en) * | 2011-11-09 | 2012-06-20 | 上海市计量测试技术研究院 | Length measuring instrument-based high precision thread plug gauge measuring device and measurement method |
| CN103884501A (en) * | 2014-04-04 | 2014-06-25 | 华北电力大学（保定） | Multifunctional rotor test bench |
| CN206177511U (en) * | 2016-10-27 | 2017-05-17 | 中意泰达(营口)汽车保修设备有限公司 | Balanced quick -witted dipperstick |
| CN107238351A (en) * | 2017-07-07 | 2017-10-10 | 宁波九纵智能科技有限公司 | A kind of measurement apparatus corrected applied to rotor on-line thickness measurement |
-
2018
- 2018-09-11 CN CN201811057440.5A patent/CN109141211A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5655836A (en) * | 1979-08-01 | 1981-05-16 | Mauser Werke Oberndorf | Thread detector |
| CN201098802Y (en) * | 2007-08-13 | 2008-08-13 | 济南泰思特仪器有限公司 | Hydraulic electric broaching machine fixture |
| CN101329159A (en) * | 2008-07-29 | 2008-12-24 | 浙江大学 | Resistor strain type apparatus for measuring diameter and its use method |
| CN101750006A (en) * | 2009-12-25 | 2010-06-23 | 重庆大学 | Error detection device for hourglass worm |
| CN102506689A (en) * | 2011-11-09 | 2012-06-20 | 上海市计量测试技术研究院 | Length measuring instrument-based high precision thread plug gauge measuring device and measurement method |
| CN103884501A (en) * | 2014-04-04 | 2014-06-25 | 华北电力大学（保定） | Multifunctional rotor test bench |
| CN206177511U (en) * | 2016-10-27 | 2017-05-17 | 中意泰达(营口)汽车保修设备有限公司 | Balanced quick -witted dipperstick |
| CN107238351A (en) * | 2017-07-07 | 2017-10-10 | 宁波九纵智能科技有限公司 | A kind of measurement apparatus corrected applied to rotor on-line thickness measurement |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114523417A (en) * | 2022-03-15 | 2022-05-24 | 常州曲线数控科技有限公司 | Method for detecting diameter of grinding wheel of roll grinder |
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Application publication date: 20190104 |
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