CN112833731B - Method for detecting runout of inner diameter groove - Google Patents
Method for detecting runout of inner diameter groove Download PDFInfo
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- CN112833731B CN112833731B CN202110001775.0A CN202110001775A CN112833731B CN 112833731 B CN112833731 B CN 112833731B CN 202110001775 A CN202110001775 A CN 202110001775A CN 112833731 B CN112833731 B CN 112833731B
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- inner diameter
- diameter groove
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 230000009191 jumping Effects 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 abstract description 10
- 238000005259 measurement Methods 0.000 abstract description 6
- 239000000523 sample Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0018—Measuring arrangements characterised by the use of mechanical techniques for measuring key-ways
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- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to a method for detecting runout of an inner diameter groove, which comprises the following steps: s1, manufacturing a high-precision measuring block; s2, collecting the centers of circles in multiple directions to make a fitting circle; and S3, evaluating the jumping relation between the fitting circle and the B standard to judge whether the circle of the inner diameter groove is qualified relative to the B standard. The detection method of the invention carries out the inner diameter groove jumping detection, can fully utilize the prior three-coordinate system to carry out the measurement only by manufacturing the corresponding measuring block with little expense, and does not need to load the expensive star-shaped measuring head with too long time, thereby greatly reducing the production cost and improving the production efficiency; the detection method can be widely applied to the measurement of the runout of the inner diameter groove with the runout requirement of more than or equal to 0.1.
Description
Technical Field
The invention relates to a method for detecting inner diameter groove runout, and belongs to the technical field of inner diameter runout detection.
Background
In the field of machining, an inner diameter groove is often required to be formed in a product. The inner diameter groove runout detection is an important index for evaluating the machining precision of the inner diameter groove. The run-out of the bore groove is typically measured using a three-coordinate system loaded with a star probe (as shown in fig. 1). However, the price of loading the star probe is high, and the specification of the existing star probe in the market is not necessarily suitable for all three-coordinate systems, so that the star probe needs to be customized according to the original three-coordinate system, which not only greatly increases the cost, but also takes too long time from the customization to the loading completion, and often cannot meet the requirement of a customer on the delivery cycle of the product. However, the measuring head of the existing three-coordinate system (as shown in fig. 2) cannot directly touch the upper and lower edges of the groove to read the numerical value and cannot directly and accurately measure the runout, so that the three-coordinate system is adopted to measure without a star measuring head, and whether the processed product meets the requirements is determined only by a damaged product spot check mode, and the mode cannot meet the requirements of customers.
Therefore, it is necessary to provide a new inner diameter groove runout detection method through research to solve the above problems.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a method for detecting the runout of an inner diameter groove, so that the conventional measuring head is used for completing the substitution measurement by means of a tool body under the condition that a star-shaped measuring head is not loaded, and the detection cost is reduced.
The method for detecting the runout of the inner diameter groove is suitable for measuring the runout requirement of the inner diameter groove which is more than or equal to 0.1.
In order to realize the purpose, the technical scheme provided by the invention is as follows:
a method for detecting inner diameter groove jump comprises the following steps:
s1, manufacturing a high-precision measuring tool block matched with the inner diameter groove according to the shape and the size specification of the inner diameter groove, wherein the high-precision measuring tool block comprises a cylinder and a cylinder ring arranged on the outer wall of the cylinder;
s2, placing the high-precision measuring tool block manufactured in the step S1 into the inner diameter groove to the limit of the inner diameter groove, transversely plugging the cylindrical ring of the high-precision measuring tool block to the limit of the inner diameter groove, collecting the circle center of the high-precision measuring tool block at the position by using a three-coordinate system, then placing the high-precision measuring tool block in the inner diameter grooves in multiple directions for multiple times, plugging the cylindrical ring of the high-precision measuring tool block to the limit of the inner diameter groove, and collecting the circle centers of the positions to manufacture a fitting circle;
and S3, judging whether the jumping relation of the circle of the inner diameter groove relative to the B standard is qualified or not according to the jumping relation of the fitting circle obtained in the step 2 and the B standard.
Furthermore, the height of the cylindrical ring is smaller than the groove width of the inner diameter groove, and the cylindrical ring is in clearance fit with the inner diameter groove.
Furthermore, the difference between the outer diameter and the inner diameter of the cylindrical ring is larger than the groove depth of the inner diameter groove.
Still further, the external diameter of the cylindrical ring is smaller than the internal diameter of the round hole of the processed internal diameter groove.
Compared with the prior art, the invention has the advantages and beneficial effects that due to the adoption of the technical scheme:
the inner diameter groove jumping detection is carried out by adopting the detection method, the existing three-coordinate system can be fully utilized for measurement only by manufacturing a corresponding measuring block with little expense, and expensive star-shaped measuring heads do not need to be loaded too long, so that the production cost is greatly reduced, and the production efficiency is improved;
1. the detection method can be widely applied to the measurement of the runout of the inner diameter groove with the runout requirement of more than or equal to 0.1.
Drawings
FIG. 1 is a general schematic view of a star probe;
fig. 2 is an overall schematic view of a conventional probe;
FIG. 3 is a schematic view of a high-precision gauge block according to an embodiment of the present invention;
FIG. 4 is a diagram illustrating a state in which a high-precision gauge block according to an embodiment of the present invention is placed in an inside diameter groove;
FIG. 5 is a schematic diagram of a circle center fitting circle obtained by the embodiment of the present invention;
reference numerals: the high-precision measuring tool comprises a high-precision measuring block 1, an inner diameter groove 2, a B datum 3 and a fitting circle 4.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in detail below with reference to the embodiments and the accompanying drawings.
The requirement of the inner diameter groove processed by the invention is that the groove diameter phi 42.05 has a jump of 0.2 relative to the B reference. The runout of the inner diameter groove is generally evaluated by measuring two circles by three coordinates and taking points on the circles, wherein one circle is expected to be runout relative to the other circle. The conventional three-coordinate system does not have a star-shaped measuring head and cannot take a point on a circle in an inner diameter groove with the groove diameter phi 42.05 for evaluation, so that the invention provides a method for detecting the runout of the inner diameter groove, the conventional measuring head is used for replacing the star-shaped measuring head by means of a tool body, and the specific method comprises the following steps:
s1, manufacturing high-precision measuring gauge block 1
Fig. 3 is a schematic overall view of a high-precision gauge block 1 according to an embodiment of the present invention, where the high-precision gauge block 1 includes a cylinder and a cylindrical ring disposed on an outer wall of the cylinder; the height of the cylindrical ring is smaller than the groove width of the inner diameter groove 2 and is in clearance fit with the inner diameter groove 2, and the difference value between the inner diameter and the outer diameter of the cylindrical ring needs to be larger than the groove depth of the inner diameter groove 2 so as to prevent measurement errors caused by interference; the outer diameter of the cylindrical ring is smaller than the inner diameter of a round hole of the inner diameter groove 2 to be processed, so that the measuring gauge block 1 can be freely put in and out.
S2, collecting the centers of circles in multiple directions to make a fitting circle 4
As shown in fig. 4, the high-precision measuring tool block 1 manufactured in step 1 is placed in the inner diameter groove 2 to the limit of the inner diameter groove 2 by transversely plugging the cylindrical ring of the high-precision measuring tool block 1, and at this time, the center of the circle of the high-precision measuring tool block 1 is collected by using a three-coordinate system; continuing to rotate the high-precision measuring block 1 to different positions along the inner diameter groove 2 and transversely plugging the cylindrical ring to the limit of the inner diameter groove 2, collecting the circle centers of all the positions of the high-precision measuring block 1 by adopting a three-coordinate system, and making all the collected circle centers into a fitting circle 4, as shown in fig. 5.
S3, evaluating the jumping relation between the fitting circle 4 and the B reference 3
And (5) judging whether the jumping relation of the circle with the groove diameter phi 42.05 to the B reference 3 is qualified or not according to the jumping relation of the fitting circle 4 and the B reference 3 obtained in the step (S2). The specific evaluation criteria are: when the jitter value is less than or equal to 0.2, the display column of the three-coordinate system is green, and the requirement is met if the display column is determined to be OK; and when the jitter value is larger than 0.2, the display column of the three-coordinate system is red, and the requirement is judged to be not met.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto. All equivalent changes, simplifications and modifications which do not depart from the spirit and scope of the invention are intended to be covered by the scope of the invention.
Claims (4)
1. A method for detecting inner diameter groove jumping comprises the following steps:
s1, manufacturing a high-precision measuring tool block matched with the inner diameter groove according to the shape and the size specification of the inner diameter groove, wherein the high-precision measuring tool block comprises a cylinder and a cylinder ring arranged on the outer wall of the cylinder;
s2, placing the high-precision measuring tool block manufactured in the step S1 into the inner diameter groove to the limit of the inner diameter groove, transversely plugging the cylindrical ring of the high-precision measuring tool block to the limit of the inner diameter groove, collecting the circle center of the high-precision measuring tool block at the position by using a three-coordinate system, then placing the high-precision measuring tool block in the inner diameter grooves in multiple directions for multiple times, plugging the cylindrical ring of the high-precision measuring tool block to the limit of the inner diameter groove, and collecting the circle centers of the positions to manufacture a fitting circle;
and S3, judging whether the jumping relation of the circle of the inner diameter groove relative to the B standard is qualified or not according to the jumping relation of the fitting circle obtained in the step 2 and the B standard.
2. The method as claimed in claim 1, wherein the height of the cylindrical ring is smaller than the width of the inner diameter groove and is in clearance fit with the inner diameter groove.
3. The method as claimed in claim 2, wherein the difference between the outer diameter and the inner diameter of the cylindrical ring is greater than the groove depth of the inner diameter groove.
4. The method as claimed in claim 3, wherein the outer diameter of the cylindrical ring is smaller than the inner diameter of the circular hole of the inner diameter groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110001775.0A CN112833731B (en) | 2021-01-04 | 2021-01-04 | Method for detecting runout of inner diameter groove |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110001775.0A CN112833731B (en) | 2021-01-04 | 2021-01-04 | Method for detecting runout of inner diameter groove |
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| Publication Number | Publication Date |
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| CN112833731A CN112833731A (en) | 2021-05-25 |
| CN112833731B true CN112833731B (en) | 2022-06-28 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004181537A (en) * | 2002-11-29 | 2004-07-02 | Toyoda Mach Works Ltd | Run-out removing method of long cylindrical workpiece in numerical control machine tool |
| CN102032848A (en) * | 2010-12-02 | 2011-04-27 | 洛阳轴研科技股份有限公司 | Method for detecting multiple technical indexes of turntable bearing by using detecting platform |
| CN104567588A (en) * | 2015-01-20 | 2015-04-29 | 芜湖金源机械制造有限公司 | Engine crankshaft damping pulley signal gear radial run-out detection tool and method |
| CN211783158U (en) * | 2020-04-02 | 2020-10-27 | 西安万钧航空动力科技有限公司 | Impeller, leaf disc class part rapid survey frock |
| CN111829409A (en) * | 2019-04-16 | 2020-10-27 | 海盐卡思机械制造有限公司 | Spline measuring tool that beats |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907995A (en) * | 2017-03-20 | 2017-06-30 | 深圳市美思美科智能科技股份有限公司 | A kind of cutter automatic detection system |
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2021
- 2021-01-04 CN CN202110001775.0A patent/CN112833731B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004181537A (en) * | 2002-11-29 | 2004-07-02 | Toyoda Mach Works Ltd | Run-out removing method of long cylindrical workpiece in numerical control machine tool |
| CN102032848A (en) * | 2010-12-02 | 2011-04-27 | 洛阳轴研科技股份有限公司 | Method for detecting multiple technical indexes of turntable bearing by using detecting platform |
| CN104567588A (en) * | 2015-01-20 | 2015-04-29 | 芜湖金源机械制造有限公司 | Engine crankshaft damping pulley signal gear radial run-out detection tool and method |
| CN111829409A (en) * | 2019-04-16 | 2020-10-27 | 海盐卡思机械制造有限公司 | Spline measuring tool that beats |
| CN211783158U (en) * | 2020-04-02 | 2020-10-27 | 西安万钧航空动力科技有限公司 | Impeller, leaf disc class part rapid survey frock |
Non-Patent Citations (1)
| Title |
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| 三坐标测量螺纹基准端面跳动的方法研究;孟峰等;《现代车用动力》;20180515(第02期);全文 * |
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Effective date of registration: 20240414 Address after: 214000 2 Tianzhu Road, Hudai Town, Binhu District, Wuxi City, Jiangsu Province Patentee after: Wuxi Lihu New Quality Energy saving Technology Co.,Ltd. Country or region after: China Address before: 214124 No.2 Tianzhu Road, Hudai Town, Wuxi City, Jiangsu Province Patentee before: WUXI LIHU Corp.,Ltd. Country or region before: China |