CN109357653A - A kind of imperfect outer arc radius measuring device and measuring method of revolving body workpieces - Google Patents

A kind of imperfect outer arc radius measuring device and measuring method of revolving body workpieces Download PDF

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Publication number
CN109357653A
CN109357653A CN201811355726.1A CN201811355726A CN109357653A CN 109357653 A CN109357653 A CN 109357653A CN 201811355726 A CN201811355726 A CN 201811355726A CN 109357653 A CN109357653 A CN 109357653A
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CN
China
Prior art keywords
detection
measured
circular arc
imperfect
arc
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Pending
Application number
CN201811355726.1A
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Chinese (zh)
Inventor
晁欣
赵亮
李婷婷
叶忠宇
刘烈萍
郝晓萍
贺敏岐
高林军
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AECC Aviation Power Co Ltd
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AECC Aviation Power Co Ltd
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Publication date
Application filed by AECC Aviation Power Co Ltd filed Critical AECC Aviation Power Co Ltd
Priority to CN201811355726.1A priority Critical patent/CN109357653A/en
Publication of CN109357653A publication Critical patent/CN109357653A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups
    • G01B21/10Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups for measuring diameters

Abstract

The invention discloses a kind of imperfect outer arc radius device of revolving body workpieces and measurement methods, by the way that circular arc works arc surface to be measured is placed in datum plane, a detection cylinder is placed respectively in circular arc works two sides to be measured, contact two detection cylinder surfaces with circular arc works surface to be measured, keep the surface of two detection cylinders and circular arc works surface to be measured in the same plane simultaneously, measure the distance between two detection cylinders, one of detection cylinder center of circle is obtained at a distance from the circular arc works center of circle to datum plane vertical join line to be measured, circular arc works arc surface radius value to be measured is obtained using right angled triangle Pythagorean theorem, this method is simple and fast, and data are accurate, solves such revolving body external arc detection problem, improve checkability, it is a kind of easy to operate, lower-cost measurement method, reliability agility High, method available extensive use in the detection of the relatively large imperfect circular arc of remaining industry has promotional value.

Description

A kind of imperfect outer arc radius measuring device and measuring method of revolving body workpieces
Technical field
The present invention relates to a kind of imperfect outer arc radius measuring device and measuring method of revolving body workpieces, belong to large-scale work Part external arc fields of measurement.
Background technique
In engine manufacturing, it is imperfect and larger usually to encounter relatively large excircle of workpiece arc, when measurement usually by Larger and imperfect in excircle of workpiece arc, directly measurement is difficult to find the maximum true value of its external arc, it is sometimes desirable to measure multiple The method that external arc is averaged, even if the error of measurement result deviation true value in this way is also very big.In view of this situation, it proposes A kind of method of large revolving body excircle of workpiece arc measurement, by indirectly measuring and converting, approximation obtains the outer circle of measured workpiece The true value of arc.The country does not retrieve relevant open source literature.
Summary of the invention
The purpose of the present invention is to provide a kind of imperfect outer arc radius measuring device and measuring method of revolving body workpieces, The present invention can reduce testing cost, improves detection efficiency and accuracy, provides accurately and reliably testing number for engine use According to.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
A kind of imperfect outer arc radius measurement method of revolving body workpieces, comprising the following steps: by circular arc works to be measured circle Cambered surface is placed in datum plane, is placed a detection cylinder respectively in circular arc works two sides to be measured, is made two detection cylinder tables Face is contacted with circular arc works surface to be measured, while the surface of two detection cylinders and circular arc works surface to be measured being made to be in same flat On face, the distance between two detection cylinders are measured, obtain one of detection cylinder center of circle and the circular arc works center of circle to be measured extremely The distance of datum plane vertical join line obtains circular arc works arc surface radius value to be measured using right angled triangle Pythagorean theorem.
Further, the detection cylinder for using diameter to be D2 for the detection cylinder of D1 and diameter measures, D1 and D2 value It is unequal;R is circular arc works arc radius to be measured;W is two detection cylinder circle center distances;Calculation formula is as follows:
In formula, R value can be obtained according to formula it is known that W value is obtained by measurement in D1 and D2 value, i.e., required for solve Circular arc works circular arc value to be measured.
Further, using the identical detection cylinder of two diameters, diameter D;Its calculation formula is:
After arrangement:
M is the distance between two detection cylinder end face outsides.
A kind of imperfect outer arc radius measuring device of revolving body workpieces comprising two detection cylinders and benchmark are flat Plate, two detection cylinder axis are placed in parallel in benchmark plate upper surface, and when measurement, circular arc works to be measured are placed in two detections circles It is contacted between column and respectively with benchmark plate and two detection cylinder surfaces.
Further, the diameter of described two detection cylinders is identical.
Further, two of them detection cylinder both ends are clamped by mechanical clamp.
Further, further include the sensor for detecting controller and being set to detection cylinder and benchmark planar surface, pass Sensor is for detecting whether circular arc works to be measured contact with detection cylinder and benchmark planar surface;Sensor is connected to detection control Device.
Further, controller is connected to mechanical clamp control motor.
Further, the computer program for measuring imperfect outer arc radius method is equipped in controller.
Further, benchmark plate is equipped with graduation mark.
Compared with prior art, the invention has the following beneficial technical effects:
A kind of imperfect outer arc radius measurement method of revolving body workpieces of the present invention, by by circular arc works arc surface to be measured Be placed in datum plane, place a detection cylinder respectively in circular arc works two sides to be measured, make two detection cylinder surfaces with Circular arc works surface contact to be measured, while the surface of two detection cylinders and circular arc works surface to be measured being made to be in same plane On, the distance between two detection cylinders are measured, obtain one of detection cylinder center of circle and the circular arc works center of circle to be measured to base The distance of directrix plane vertical join line obtains circular arc works arc surface radius value to be measured, we using right angled triangle Pythagorean theorem Method is simple and fast, and data are accurate, solves such revolving body external arc detection problem, improves checkability, be a kind of behaviour Facilitate, lower-cost measurement method, reliability agility is high, relatively large imperfect circular arc of the method in remaining industry Detection in available extensive use, have promotional value.It meets outside the larger revolving body that engine manufacture scene is encountered Detection method when circular arc is imperfect.
Further, detection calculating is carried out using the identical detection cylinder of two diameters, reduces difficulty in computation, be convenient for core Standard keeps testing result more accurate.
A kind of imperfect outer arc radius measuring device of revolving body workpieces, using two detection cylinders and benchmark plate, Two detection cylinder axis are placed in parallel in benchmark plate upper surface, and when measurement, circular arc works to be measured are placed in two detection cylinders Between and contacted respectively with benchmark plate and two detection cylinder surfaces, utilize a detection cylinder center of circle and circular arc works to be measured The center of circle, apart from form right angle triangle, obtains circular arc to be measured using right angled triangle Pythagorean theorem to datum plane vertical join line Workpiece circular arc radius surface value, present apparatus structure is simple, and easy to operate.
Further, further include the sensor for detecting controller and being set to detection cylinder and benchmark planar surface, pass Sensor is for detecting whether circular arc works to be measured contact with detection cylinder and benchmark planar surface;Sensor is connected to detection control Device detects whether circular arc works to be measured contact with detection cylinder and benchmark planar surface using sensor, as a result accurate quick, benefit It can quickly be carried out that result is calculated with controller.Substantially increase checkability.
Detailed description of the invention
Fig. 1 is measuring principle structural schematic diagram of the present invention.
Fig. 2 is theory structure schematic diagram of the embodiment of the present invention.
Wherein, 1, circular arc works to be measured;2, detection cylinder;3, benchmark plate.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
As shown in Figure 1, carrying out the device of radius measurement, including two detection cylinders to the imperfect external arc of revolving body workpieces 2 and benchmark plate 3, two 2 axis of detection cylinder are placed in parallel in 3 upper surface of benchmark plate, when measurement, circular arc works to be measured 1 is placed between two detection cylinders 2 and contacts respectively with benchmark plate 3 and two 2 surfaces of detection cylinder.
The diameter of described two detection cylinders 2 is identical;
2 both ends of two of them detection cylinder are clamped by mechanical clamp, realize parallel spacing between two detection cylinders 2 Adjustment clamps two detection cylinders 2 parallel sliding on benchmark plate 3 by mechanical clamp;It realizes between two detection cylinders 2 Away from accurate adjustment;
Benchmark plate 3 is equipped with graduation mark, and artificial nucleus are carried out when for measuring to the distance between calibration detection cylinder 2;
It further include the sensor for detecting controller and being set to 3 surface of detection cylinder 2 and benchmark plate, sensor is used for Detect whether circular arc works 1 to be measured contact with detection cylinder 2 and 3 surface of benchmark plate;Sensor is connected to detection controller, control It is equipped in device processed and is used for the imperfect outer arc radius measurement method program of revolving body workpieces;Clamp the mechanical clamp of detection cylinder 2 By controlling motor control, and the distance between two detection cylinders 2, by control motor measurement, controller is connected to clamping inspection The mechanical clamp for surveying cylinder 2 controls motor, realizes the distance adjustment of two detection cylinders 2 and apart from detection;
A kind of imperfect outer arc radius measurement method of revolving body workpieces, comprising the following steps:
Circular arc works arc surface to be measured is placed in datum plane, places an inspection respectively in circular arc works two sides to be measured Survey cylinder, contact two detection cylinder surfaces with circular arc works surface to be measured, at the same make two detection cylinders surface and to It is in the same plane to survey circular arc works surface, measures the distance between two detection cylinders, obtains one of detection cylinder The center of circle is obtained to be measured at a distance from the circular arc works center of circle to datum plane vertical join line to be measured using right angled triangle Pythagorean theorem Circular arc works arc surface radius value.
As shown in Figure 1, specific measurement process calculation formula is as follows:
The detection cylinder for using diameter to be D2 for the detection cylinder of D1 and diameter measures, and D1 and D2 value are unequal;R is Circular arc works arc radius to be measured;W is two detection cylinder circle center distances;Calculation formula is as follows:
In formula, R value can be obtained according to formula it is known that W value is obtained by measurement in D1 and D2 value, i.e., required for solve Circular arc works circular arc value to be measured.
Embodiment 1
As shown in Fig. 2, using the identical detection cylinder of two diameters, diameter D;Its calculation formula is:
After arrangement:
It in measurement process, can measure as the distance between two detection cylinder end face outsides M, i.e. between two centers of circle The sum of distance and a detection cylinder diameter.
Engine manufacturing encounter revolving body external arc it is larger and imperfect when, in-site measurement is usually due to excircle of workpiece Arc is larger and imperfect, and directly measurement is difficult to find the maximum true value of its external arc is met by the research of this detection method Detection method when the larger revolving body external arc that engine manufacture scene is encountered is imperfect, solves such revolving body external arc Problem is detected, checkability is improved, is a kind of omnipotent, easy to operate, lower-cost measurement method, reliability agility High, method available extensive use in the detection of the relatively large imperfect circular arc of remaining industry has promotional value.

Claims (10)

1. a kind of imperfect outer arc radius measurement method of revolving body workpieces, which comprises the following steps: by circle to be measured Arc workpiece circular arc face is placed in datum plane, places a detection cylinder respectively in circular arc works two sides to be measured, makes two inspections It surveys periphery to contact with circular arc works surface to be measured, while making at the surface and circular arc works surface to be measured of two detection cylinders In on same plane, measuring the distance between two detection cylinders, one of detection cylinder center of circle and circular arc work to be measured are obtained The part center of circle obtains circular arc works arc surface to be measured half using right angled triangle Pythagorean theorem to the distance of datum plane vertical join line Diameter value.
2. the imperfect outer arc radius measurement method of a kind of revolving body workpieces according to claim 1, which is characterized in that use The detection cylinder that the detection cylinder and diameter that diameter is D1 are D2 measures, and D1 and D2 value are unequal;R is circular arc works to be measured Arc radius;W is two detection cylinder circle center distances;Calculation formula is as follows:
In formula, R value is can be obtained according to formula it is known that W value is obtained by measurement in D1 and D2 value, i.e., required for solve it is to be measured Circular arc works circular arc value.
3. the imperfect outer arc radius measurement method of a kind of revolving body workpieces according to claim 1, which is characterized in that use The identical detection cylinder of two diameters, diameter D;Its calculation formula is:
After arrangement:
M is the distance between two detection cylinder end face outsides.
4. a kind of measuring device for the imperfect outer arc radius measurement method of revolving body workpieces described in claim 1, special Sign is, including two detection cylinders (2) and benchmark plate (3), and it is flat that two detection cylinder (2) axis are placed in parallel in benchmark Plate (3) upper surface, when measurement, circular arc works (1) to be measured be placed between two detection cylinders (2) and respectively with benchmark plate (3) It is contacted with two detection cylinder (2) surfaces.
5. the imperfect outer arc radius measuring device of a kind of revolving body workpieces according to claim 4, which is characterized in that institute The diameter for stating two detection cylinders (2) is identical.
6. the imperfect outer arc radius measuring device of a kind of revolving body workpieces according to claim 4 or 5, feature exist In two of them detection cylinder (2) both ends are clamped by mechanical clamp.
7. the imperfect outer arc radius measuring device of a kind of revolving body workpieces according to claim 4, which is characterized in that also Including detection controller and be set to the sensor of detection cylinder (2) and benchmark plate (3) surface, sensor for detection to Survey whether circular arc works (1) contacts with detection cylinder (2) and benchmark plate (3) surface;Sensor is connected to detection controller.
8. the imperfect outer arc radius measuring device of a kind of revolving body workpieces according to claim 7, which is characterized in that control Device processed is connected to mechanical clamp control motor.
9. the imperfect outer arc radius measuring device of a kind of revolving body workpieces according to claim 7, which is characterized in that control The computer program for measuring imperfect outer arc radius method is equipped in device processed.
10. the imperfect outer arc radius measuring device of a kind of revolving body workpieces according to claim 4, which is characterized in that Benchmark plate (3) is equipped with graduation mark.
CN201811355726.1A 2018-11-14 2018-11-14 A kind of imperfect outer arc radius measuring device and measuring method of revolving body workpieces Pending CN109357653A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112344866A (en) * 2020-02-11 2021-02-09 周海兵 Automatic detection device for U-shaped copper pipe of air conditioner
CN112802018A (en) * 2021-03-31 2021-05-14 深圳棱镜空间智能科技有限公司 Integrity detection method, device and equipment for segmented circular workpiece and storage medium

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108387162A (en) * 2018-02-13 2018-08-10 东北大学 A kind of method of off-line measurement large-scale workpiece radius of curvature

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108387162A (en) * 2018-02-13 2018-08-10 东北大学 A kind of method of off-line measurement large-scale workpiece radius of curvature

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112344866A (en) * 2020-02-11 2021-02-09 周海兵 Automatic detection device for U-shaped copper pipe of air conditioner
CN112344866B (en) * 2020-02-11 2022-04-26 临沂市交通制冷工程有限公司 Automatic detection device for U-shaped copper pipe of air conditioner
CN112802018A (en) * 2021-03-31 2021-05-14 深圳棱镜空间智能科技有限公司 Integrity detection method, device and equipment for segmented circular workpiece and storage medium
CN112802018B (en) * 2021-03-31 2021-08-06 深圳棱镜空间智能科技有限公司 Integrity detection method, device and equipment for segmented circular workpiece and storage medium

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Application publication date: 20190219