CN202304758U - On-line diameter measuring device for large-diameter rotating body - Google Patents
On-line diameter measuring device for large-diameter rotating body Download PDFInfo
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- CN202304758U CN202304758U CN2011203176144U CN201120317614U CN202304758U CN 202304758 U CN202304758 U CN 202304758U CN 2011203176144 U CN2011203176144 U CN 2011203176144U CN 201120317614 U CN201120317614 U CN 201120317614U CN 202304758 U CN202304758 U CN 202304758U
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Abstract
The utility model relates to an on-line diameter measuring device for a large-diameter rotating body. The on-line diameter measuring device comprises a first measuring group and a second measuring group which are symmetrically arranged at two sides of the rotating body to be measured, wherein the first measuring group and the second measuring group are in symmetrical arrangement by using the axial line of the rotating body to be measured as the symmetry axis, the two measuring groups are respectively aligned with two ends of the rotating body to be measured, each measuring group comprises an emitting end for emitting measuring light, a receiving end aligned with the emitting end, and a connecting element for connecting the emitting end with the receiving end, the rotating body to be measured is positioned between the emitting end and the receiving end, the measuring light forms blocked light and rest of light after meeting the rotating body to be measured, the blocked light is blocked by the rotating body to be measured and cannot be transmitted to the receiving end, the rest of light passes through the rotating body to be measured and reaches the receiving end, the receiving end receives the rest of light and calculates the light band width of the rest of light, the receiving end inputs the light band width into a processor, and the processor carries out calculation to obtain the diameter of the rotating body to be measured. The on-line diameter measuring device has the advantages that the measuring precision is high, and the manufacture cost is low.
Description
Technical field
The utility model relates to a kind of diameter on-line measurement device of large-diameter revolving body.
Background technology
For a long time, along with heavy mechanical equipment develops towards complicated, precise treatment direction, require also to improve constantly for the detection of the crudy of the needed large-size workpiece of these equipment.Chinese scholars has been carried out big quantity research to revolving parts diameter and correlation parameter measurement, but the large diameter measurement aspect never has desirable method and instrument occurs, and especially in mechanical industry, large-sized precision is measured and do not obtained fine solution as yet.The target of the utility model is the diameter parameters of research and development through the online precision measurement large scale of building of sensor revolving parts.
At present, the method for diameter measurement mainly contains the direct method of measurement and the indirect method of measurement.The direct method of measurement mainly contains following several kinds of modes: with the big external diameter of vernier caliper measurement, be used for the workpiece that the measurement tolerance grade is higher than IT10; Measure big external diameter with outside micrometer and calliper, this is the widely used measurement instrument of present workshop, but precision is not high, can survey the size between the 500-2000mm.The direct method of measurement is because this type of measuring principle decision measurement instrument certainly exists the large-scale metrology weakness;, weight big like the measurement instrument volume is difficult to operation greatly; Stress deformation is also big simultaneously, and temperature influence is big, and the low manufacturing cost with measurement instrument of measuring accuracy is high.Straddle formula surveying instrument and have function error around the contact indirect method of measurement such as method measurement strengthened measuring error like this, thereby precision is not very high.The contactless indirect method of measurement such as roller method, precision can reach 20 μ, influences but also exist to receive to slide, and can not be used to measure shortcomings such as the discontinuous face of cylinder.
The utility model content
For the measuring accuracy that overcomes prior art is low, the shortcoming that manufacturing cost is high, the utility model provides a kind of measuring accuracy high, the diameter on-line measurement device of the large-diameter revolving body of low cost of manufacture.
The diameter on-line measurement device of large-diameter revolving body; Comprise the first measurement group and the second measurement group that are arranged at tested solid of revolution both sides symmetrically; The first measurement group and the second measurement group are symmetrical set about the axis of described tested solid of revolution, and two measurement groups are aimed at the two ends of described tested solid of revolution respectively;
Each measurement group includes the transmitting terminal of emission measurement light, the receiving end and the web member that is connected transmitting terminal and receiving end of the described transmitting terminal of aligning; Described tested solid of revolution between described transmitting terminal and receiving end, described measuring light run into form behind the tested solid of revolution by described tested solid of revolution block, can't be passed to described receiving end by block light and cross described tested solid of revolution, arrive the rest of light of described receiving end; Described receiving end receives described rest of light and calculates the light belt width of rest of light, and described receiving end is with in the light belt width input processor, and processor calculates the diameter that obtains tested solid of revolution:
L＝(X′-X)+(Y′-Y)+L′；
When wherein, X ' is known standard calibration piece for tested solid of revolution, the light belt width of the rest of light obtained of the receiving end of the first measurement group; When Y ' is known standard calibration piece for tested solid of revolution, the light belt width of the rest of light obtained of the receiving end of the second measurement group; L ' is the diameter of standard calibration piece; The light belt width of the rest of light that X obtains for the receiving end of the first measurement group of unknown tested solid of revolution; The light belt width of the rest of light that Y obtains for the receiving end of the second measurement group of unknown tested solid of revolution.
Further, be provided with the screw mechanism of distance between two measurement groups of adjustment between the web member of the first measurement group and the second measurement group.
The technical conceive of the utility model is: adopt two pairs of laser measurement groups based on laser scanning method, build respectively at tested solid of revolution edges at two ends place, draw the diameter value of asking through image data and analytical calculation.A pair of laser measurement group is made up of a transmitting terminal gauge head and a receiving end gauge head, and the laser that sends through transmitting terminal scans measured piece via rotating prism, according to being drawn the measured piece size by the size of the light that blocked.
The first measurement group A1, B1 and the second measurement group A2, B2 are installed in the right and left of tested solid of revolution respectively, and then the transmitting terminal of two pairs of gauge heads and receiving end lay respectively at the two ends up and down of tested solid of revolution.Transmitting terminal and receiving end rely on web member to connect together, and fixed distance is motionless between transmitting terminal and the receiving end.Between two gauge heads of above-below direction the same side; Promptly the distance between the receiving end B2 of the receiving end B1 of the transmitting terminal A2 of the transmitting terminal A1 of the first measurement group and the second measurement group, the first measurement group and the second measurement group can be adjusted through screw structure; Thereby be convenient to measure the rotor journal of different-diameter size; A2 and B2 together move in the adjustment process, avoid transmitting terminal and receiving end to depart from same straight line.Whole device puts in and is adjusted to correct measuring position from the side and measures when measuring.
Two bundle measuring light of transmitting terminal are beaten two end points at a diameter of tested solid of revolution, and two bundle measuring light are received the termination receipts after being blocked a part separately, and rest of light is received termination and receives in the input processor.The light belt width of the rest of light of the first measurement group is that the light belt width of the rest of light of X, the second measurement group is Y, and the diameter of tested solid of revolution representes that with L the distance between two beam edge is represented with Q, can get L=Q-(X+Y).
Measure as earlier standard calibration piece L ' (perhaps known standard calibration block) being put between two measurement groups, then have: L '=Q-(X '+Y '), two formula are done subtraction and are obtained: L-L '=(X '-X)+(Y '-Y); Wherein L ' numerical value is known, X then, X '; Y; Y ' can be drawn by sensor easily, and then L=(X '-X)+(Y '-Y)+and L ', the result of Q and measurement is irrelevant like this; So Q can be regulated arbitrarily by our size of on-the-spot frock, the convenient installation also adapted to on-the-spot environment.
Thereby before measuring, earlier calibrated bolck being pushed measured zone, X ' that sensor is read and Y ' value are imported the computing machine preservation into, as known quantity.
After taking out standard gauge block, measurement mechanism is pushed tested solid of revolution from the position, side, sensor is read above-mentioned X and Y value, and (X '-X)+(Y '-Y)+L ' calculates the diameter of tested solid of revolution according to above-mentioned formula L=to import computing machine into.
The utlity model has following beneficial effect:
1. online in real time is measured.The utility model can advance from the position, side, and the workpiece in the processing is carried out on-line measurement.The high SF of laser measurement group has guaranteed the feasibility of the online detection of diameter.Avoid manually-operated, improved efficiency of measurement.
2. measuring accuracy is high.The measuring accuracy of the measuring system of the utility model is 2 μ～3 μ.
3. good stability.The measuring method that the utility model adopts receives such environmental effects less, can disturb good stability by anti-factory complicated factor.
4. adopt two groups of laser measurement groups can accomplish measuring process, low cost of manufacture.
Description of drawings
Fig. 1 is the utility model measurement mechanism figure.
Fig. 2 is the computational analysis schematic diagram.
Embodiment
With reference to accompanying drawing, further specify the utility model:
The diameter on-line measurement device of large-diameter revolving body; Comprise the first measurement group A1, B1 and the second measurement group A2, the B2 that are arranged at tested solid of revolution both sides symmetrically; The first measurement group A1, B1 and the second measurement group A2, B2 are symmetrical set about the axis of described tested solid of revolution 1, and two measurement groups are aimed at the two ends of described tested solid of revolution 1 respectively;
Each measurement group include emission measurement light transmitting terminal A1, A2, the described transmitting terminal of aligning receiving end B1, B2 and be connected the web member 2 of transmitting terminal A1, A2 and receiving end B1, B2; Described tested solid of revolution 1 between described transmitting terminal A1, A2 and receiving end B1, B2, described measuring light run into tested solid of revolution 1 back form by described tested solid of revolution block, can't be passed to described receiving end by block light and cross described tested solid of revolution, arrive the rest of light of described receiving end; Described receiving end B1, B2 receive described rest of light and calculate the light belt width of rest of light, and described receiving end is with in the light belt width input processor, and processor calculates the diameter that obtains tested solid of revolution 1:
L＝(X′-X)+(Y′-Y)+L′；
When wherein, X ' is known standard calibration piece for tested solid of revolution, the light belt width of the rest of light obtained of the receiving end of the first measurement group; When Y ' is known standard calibration piece for tested solid of revolution, the light belt width of the rest of light obtained of the receiving end of the second measurement group; L ' is the diameter of standard calibration piece; The light belt width of the rest of light that X obtains for the receiving end of the first measurement group of unknown tested solid of revolution; The light belt width of the rest of light that Y obtains for the receiving end of the second measurement group of unknown tested solid of revolution.
Be provided with the screw mechanism of distance between two measurement groups of adjustment between the first measurement group and the second measurement group.
The technical conceive of the utility model is: adopt two pairs of laser measurement groups based on laser scanning method, build respectively at tested solid of revolution edges at two ends place, draw the diameter value of asking through image data and analytical calculation.A pair of laser measurement group is made up of a transmitting terminal gauge head and a receiving end gauge head, and the laser that sends through transmitting terminal scans measured piece via rotating prism, according to being drawn the measured piece size by the size of the light that blocked.
The first measurement group A1, B1 and the second measurement group A2, B2 are installed in the right and left of tested solid of revolution respectively, and then the transmitting terminal of two pairs of gauge heads and receiving end lay respectively at the two ends up and down of tested solid of revolution.Transmitting terminal and receiving end rely on web member to connect together, and fixed distance is motionless between transmitting terminal and the receiving end.Between two gauge heads of same survey; Promptly the distance between the receiving end B2 of the receiving end B1 of the transmitting terminal A2 of the transmitting terminal A1 of the first measurement group and the second measurement group, the first measurement group and the second measurement group can be adjusted through screw structure; Thereby be convenient to measure the rotor journal of different-diameter size; A2 and B2 together move in the adjustment process, avoid transmitting terminal and receiving end to depart from same straight line.Whole device puts in and is adjusted to correct measuring position from the side and measures when measuring.
Two bundle measuring light of transmitting terminal are beaten two end points at a diameter of tested solid of revolution, and two bundle measuring light are received the termination receipts after being blocked a part separately, and rest of light is received termination and receives in the input processor.The light belt width of the rest of light of the first measurement group is that the light belt width of the rest of light of X, the second measurement group is Y, and the diameter of tested solid of revolution representes that with L the distance between two beam edge is represented with Q, can get L=Q-(X+Y).
Measure as earlier standard calibration piece L ' (perhaps known standard calibration block) being put between two measurement groups, then have: L '=Q-(X '+Y '), two formula are done subtraction and are obtained: L-L '=(X '-X)+(Y '-Y); Wherein L ' numerical value is known, X then, X '; Y; Y ' can be drawn by sensor easily, and then L=(X '-X)+(Y '-Y)+and L ', the result of Q and measurement is irrelevant like this; So Q can be regulated arbitrarily by our size of on-the-spot frock, the convenient installation also adapted to on-the-spot environment.
Thereby before measuring, earlier calibrated bolck being pushed measured zone, X ' that sensor is read and Y ' value are imported the computing machine preservation into, as known quantity.
After taking out standard gauge block, measurement mechanism is pushed tested solid of revolution from the position, side, sensor is read above-mentioned X and Y value, and (X '-X)+(Y '-Y)+L ' calculates the diameter of tested solid of revolution according to above-mentioned formula L=to import computing machine into.
The utlity model has following beneficial effect:
1. online in real time is measured.The utility model can advance from the position, side, and the workpiece in the processing is carried out on-line measurement.The high SF of laser measurement group has guaranteed the feasibility of the online detection of diameter.Avoid manually-operated, improved efficiency of measurement.
2. measuring accuracy is high.The measuring accuracy of the measuring system of the utility model is 2 μ～3 μ.
3. good stability.The measuring method that the utility model adopts receives such environmental effects less, can disturb good stability by anti-factory complicated factor.
4. adopt two groups of laser measurement groups can accomplish measuring process, low cost of manufacture.
The described content of this instructions embodiment only is enumerating the way of realization of utility model design; The protection domain of the utility model should not be regarded as and only limit to the concrete form that embodiment states, the protection domain of the utility model also reach in those skilled in the art according to the utility model design the equivalent technologies means that can expect.
Claims (2)
1. the diameter on-line measurement device of large-diameter revolving body; It is characterized in that: comprise the first measurement group and the second measurement group that are arranged at tested solid of revolution both sides symmetrically; The first measurement group and the second measurement group are symmetrical set about the axis of described tested solid of revolution, and two measurement groups are aimed at the two ends of described tested solid of revolution respectively;
Each measurement group includes the transmitting terminal of emission measurement light, the receiving end and the web member that is connected transmitting terminal and receiving end of the described transmitting terminal of aligning; Described tested solid of revolution between described transmitting terminal and receiving end, described measuring light run into form behind the tested solid of revolution by described tested solid of revolution block, can't be passed to described receiving end by block light and cross described tested solid of revolution, arrive the rest of light of described receiving end; Described receiving end receives described rest of light and calculates the light belt width of rest of light, and described receiving end is with in the light belt width input processor, and processor calculates the diameter that obtains tested solid of revolution.
2. the diameter on-line measurement device of large-diameter revolving body as claimed in claim 1 is characterized in that: the screw mechanism that is provided with distance between two measurement groups of adjustment between the web member of the first measurement group and the second measurement group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203176144U CN202304758U (en) | 2011-08-27 | 2011-08-27 | On-line diameter measuring device for large-diameter rotating body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203176144U CN202304758U (en) | 2011-08-27 | 2011-08-27 | On-line diameter measuring device for large-diameter rotating body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202304758U true CN202304758U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203176144U Withdrawn - After Issue CN202304758U (en) | 2011-08-27 | 2011-08-27 | On-line diameter measuring device for large-diameter rotating body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202304758U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331236A (en) * | 2011-08-27 | 2012-01-25 | 浙江大学 | On-line diameter measurement device for large-diameter solid of revolution |
| CN106382892A (en) * | 2016-08-19 | 2017-02-08 | 广东省自动化研究所 | Method and device for measuring tape winding diameter of tape winding and unwinding system based on trigonometric function |
-
2011
- 2011-08-27 CN CN2011203176144U patent/CN202304758U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331236A (en) * | 2011-08-27 | 2012-01-25 | 浙江大学 | On-line diameter measurement device for large-diameter solid of revolution |
| CN106382892A (en) * | 2016-08-19 | 2017-02-08 | 广东省自动化研究所 | Method and device for measuring tape winding diameter of tape winding and unwinding system based on trigonometric function |
| CN106382892B (en) * | 2016-08-19 | 2019-08-06 | 广东省智能制造研究所 | A kind of method and device based on trigonometric function measurement folding and unfolding with system volume with coil diameter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120704 Effective date of abandoning: 20131113 |
|
| RGAV | Abandon patent right to avoid regrant |