WO2018139002A1 - 測定システム及び穴径測定用のアタッチメント - Google Patents

測定システム及び穴径測定用のアタッチメント Download PDF

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Publication number
WO2018139002A1
WO2018139002A1 PCT/JP2017/040378 JP2017040378W WO2018139002A1 WO 2018139002 A1 WO2018139002 A1 WO 2018139002A1 JP 2017040378 W JP2017040378 W JP 2017040378W WO 2018139002 A1 WO2018139002 A1 WO 2018139002A1
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Prior art keywords
attachment
divided
measurement
measuring
measurement system
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Ceased
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PCT/JP2017/040378
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English (en)
French (fr)
Japanese (ja)
Inventor
安部　新一
声喜 佐藤
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Knowledge Manufacturing Co
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Knowledge Manufacturing Co
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Publication date
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Ceased legal-status Critical Current

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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
    • G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
    • G01B5/12—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters internal diameters

Definitions

  • the present invention relates to a measurement system and an attachment for hole diameter measurement.
  • ⁇ ⁇ Relatively small hole diameter measurement is performed using a pin gauge set consisting of a large number of types of pin gauges to cope with various diameters. For example, a measurer searches for a hole diameter while exchanging the pin gauge, and finally measures the hole diameter in such a way that the pin gauge fits into the hole diameter as a hole diameter (see Patent Document 1).
  • a plug gauge is used to efficiently inspect whether the diameter of the processed hole is within a predetermined tolerance range (see Patent Document 2).
  • This plug gauge is provided with a “stop” having an allowable maximum diameter dimension and a “through” having an allowable minimum diameter dimension by forming a step on the end face on one side of the grip.
  • the present inventors have proposed an IoT production management system.
  • the system includes: first information related to a mold for forming a product or a tool for processing the product; second information related to production equipment for producing a product using the mold or the tool; And the third information on the quality of the product produced using the production facility is collected in real time using the communication network, and the collected first to third information is integrated, and the integrated first to third information is integrated.
  • Management information related to at least one of product quality, cost, productivity, and delivery date is linked to the information, and the linked first to third information and management indexes are output so as to be displayed as mapping data.
  • the object of the present invention is that the system configuration is simple, the hole diameter can be measured accurately and in a short time, and the measurement result can be input in real time without requiring manpower. It is to provide a measurement system and an attachment for measuring a hole diameter.
  • a measurement system includes a measuring device that generates digital data corresponding to the advance / retreat position of a probe, and a plurality of radial divisions, and is adapted to the advance / retreat of the probe. And an attachment having a divided cylindrical portion for measuring a hole diameter whose diameter expands and contracts.
  • the hole diameter can be measured by the divided cylindrical portion for measuring the hole diameter whose diameter expands and contracts, it is not necessary to prepare a large number of types of pin gauges as in the system using the pin gauges. .
  • the system configuration is simple because the attachment may be attached to a measuring instrument that generates digital data corresponding to the advance / retreat position of a probe such as a digital micrometer head.
  • a measuring device that generates digital data according to the advancement / retraction position of the probe, and the hole diameter is measured by the divided cylindrical part for measuring the hole diameter whose diameter expands / contracts according to the advancement / retraction of the probe. Since it is configured to measure, the hole diameter can be measured accurately and in a short time. In addition, since the hole diameter data can be calculated from the generated digital data, it is possible to input the measurement result in real time without requiring manpower.
  • each divided member of the divided cylindrical portion has an inclined inner peripheral surface inclined in the axial direction on the inner peripheral side
  • the attachment further includes: A mandrel is provided that is connected to a measuring element, advances and retreats in accordance with the advancement and retraction of the measuring element, and has an inclined outer peripheral surface that abuts on each of the inclined inner peripheral surfaces on the outer peripheral side.
  • the attachment is attached to a main body of the measuring instrument, and includes a mandrel guide having a first guide portion that guides the mandrel in the axial direction, and each of the divided members having a diameter.
  • a second guide portion that guides each of the divided members from the mandrel guide and guides each of the divided members in the axial direction, and each of the inclined outer peripheral surfaces of the mandrel.
  • a third guide part for restricting detachment from the mandrel.
  • the attachment is detachable from the measuring instrument. Thereby, when a hole diameter differs greatly, it can respond by exchanging an attachment.
  • a measurement system is a data generation unit that generates digital data of the diameter of the divided cylindrical portion that expands and contracts based on digital data corresponding to the advancing / retreating position of the probe generated by the measuring device. Is further provided.
  • the digital data calculated by the measurement system can be used as hole diameter data as it is.
  • the measuring device includes a transmission unit that transmits digital data to a computer system, and the data generation unit is provided in the measurement unit or the computer system.
  • the measurement device and the attachment are configured such that the type of the attachment attached to the measurement device can be identified, and the data generation unit is Digital data corresponding to the type of attachment is generated.
  • the data generation unit is Digital data corresponding to the type of attachment is generated.
  • An attachment for hole diameter measurement is detachable from a measuring instrument that generates digital data according to the advancement / retraction position of the probe, and is divided into a plurality of parts in the radial direction, for the advancement / retraction of the probe. There is a divided cylindrical part for measuring the hole diameter whose diameter expands and contracts accordingly.
  • each divided member of the divided cylindrical portion has an inclined inner peripheral surface inclined in the axial direction on the inner peripheral side, and the measuring element And a mandrel having an inclined outer peripheral surface on the outer peripheral side, which advances and retreats in accordance with the advancement and retreat of the measuring element and contacts each of the inclined inner peripheral surfaces.
  • the system configuration is simple, the hole diameter can be measured accurately and in a short time, and the measurement result can be input in real time without requiring manpower.
  • FIG. 1 is a perspective view showing a measurement system according to an embodiment of the present invention. It is a block diagram which shows the structure of the micrometer head main body in the measuring system which concerns on one Embodiment of this invention, and a computer system. It is an attachment in the measurement system which concerns on one Embodiment of this invention.
  • FIG. 4 is a cross-sectional view taken along line AA in FIG. 3.
  • FIG. 4 is a cross-sectional perspective view taken along line AA in FIG. 3.
  • FIG. 1 is a perspective view showing a measurement system according to an embodiment of the present invention. As shown in FIG. 1, the measurement system 1 includes a digital micrometer head 10 as a measuring instrument and an attachment 20.
  • the digital micrometer head 10 includes a micrometer head main body 11, a spindle 12, and a measuring element 13.
  • the measuring element 13 advances and retreats in the axial direction in accordance with the rotation of the spindle 12, and the measuring element 13 moves to the advanced and retracted position. In response, digital data is generated.
  • the attachment 20 includes a divided cylindrical portion 21 for measuring a hole diameter, a mandrel 22, and a mandrel guide 23. These configurations will be described later.
  • FIG. 2 is a block diagram showing the configuration of the micrometer head main body 11 and the computer system 30.
  • the micrometer head main body 11 includes a calculation unit 11a, a display unit 11b, a communication unit 11c, and an antenna 11d.
  • the calculation unit 11a generates digital data corresponding to the advance / retreat position of the probe 13, and displays a predetermined measurement result on the display unit 11b based on the generated data.
  • the measurement result is transmitted to the computer system 30 side, for example, via the wireless communication path via the communication unit 11c and the antenna 11d. Note that a wired communication path may be used instead of a wireless communication path.
  • the computer system includes a PC and a tablet terminal.
  • FIG. 3 is a perspective view of the attachment 20
  • FIG. 4 is a sectional view taken along the line AA in FIG. 3
  • FIG. 5 is a perspective view taken along the line AA in FIG. In FIG. 5, the hatched lines indicating the cross-sectional portions are omitted.
  • the diameter D of the divided cylindrical portion 21 expands / contracts according to the advancement / retraction of the probe 13.
  • the divided cylindrical portion 21 includes a divided member 21a divided into three in the radial direction.
  • the dividing member 21a may be divided into two, or four or more.
  • Each division member 21a has an inclined inner peripheral surface 21b inclined in the axial direction on the inner peripheral side.
  • Each inclined inner peripheral surface 21 b is inclined in the axial direction so that the space formed by all the inclined inner peripheral surfaces 21 b becomes narrower toward the tip of the attachment 20.
  • the inclination angle is not particularly specified, in this embodiment, the inclination angle is set to about 10 ° to 15 °, for example.
  • the mandrel 22 is connected to the measuring element 13, and advances and retreats according to the advancement and retraction of the measuring element 13.
  • the inclination angle of the inclined outer peripheral surface 22a is the same as the inclination angle of the inclined inner peripheral surface 21b.
  • the mandrel guide 23 is attached to the micrometer head main body 11, and has a first guide portion 23a for guiding the mandrel 22 in the axial direction.
  • the first guide portion 23 a is configured to surround the outer periphery of the mandrel 22.
  • the attachment 20 includes a second guide unit 24 and a third guide unit 25.
  • the second guide portion 24 guides each divided member 21a in the radial direction and restricts the separation of each divided member 21a from the mandrel guide 23.
  • the 2nd guide part 24 has the convex part 24a provided in each division member 21a, and the groove part 24b provided in the mandrel guide 23 corresponding to each convex part 24a.
  • Each groove portion 24 b is provided on the contact surface with the divided cylindrical portion 21 that is the tip surface of the mandrel guide 23 so as to go from the center toward the outer periphery.
  • Each convex part 24a is provided on the contact surface of each divided member 21a with the mandrel guide 23 so as to engage with each groove part 24b, and is guided in the radial direction along each groove part 24b.
  • the tip of the convex portion 24a has, for example, a cylindrical bulge portion
  • the bottom portion of the groove portion 24b has a cylindrical bulge passage so as to correspond thereto, and the bulge portion moves while engaging with the bulge passage.
  • the separation of each split member 21a from the mandrel guide 23 is restricted.
  • the split member 21a is restricted from being detached from the attachment 20 in the axial direction.
  • the structure of the convex part 24a and the groove part 24b is only an example, and another form may be sufficient as it.
  • the third guide portion 25 guides each inclined outer peripheral surface 22a of the mandrel 22 in the axial direction and regulates the separation of each divided member 21a from the mandrel 22.
  • the 3rd guide part 25 has the groove part 25a provided in each division member 21a, and the elongate convex part 25b provided in the mandrel 22 corresponding to each groove part 25a.
  • Each groove part 25a is provided in the axial direction along each inclined inner peripheral surface 21b of each divided member 21a.
  • Each protrusion 25b is provided on each inclined outer peripheral surface 22a of the mandrel 22 so as to engage with each groove 25a, and is guided in the axial direction along each groove 25a.
  • each groove portion 25a is widened toward the bottom surface
  • the width of each convex portion 25b is widened toward the tip so as to correspond to the groove width of the groove portion 25a
  • the convex portion 2b is engaged with the groove portion 25a. While moving, the separation of each split member 21a from the mandrel 22 is regulated. As a result, the separation of the split member 21a from the attachment 20 in the radial direction is restricted.
  • the structure of the groove part 25a and the convex part 25b is only an example, and another form may be sufficient as it.
  • the attachment 20 has a configuration that is detachable from the digital micrometer head 10.
  • the mandrel guide 23 has a groove 23b through which the tip 11f of the micrometer head body 11 and the measuring element 13 pass between the digital micrometer head 10 and the first guide 23a.
  • the tip of the probe 13 passing through the groove 23b is detachably fixed to the probe fixing part 26 of the attachment 20. Further, the tip end portion 11f of the micrometer head main body 11 passing through the groove portion 23b is fixed to the tip end fixing portion 27 of the attachment 20 so as to be detachable.
  • the probe fixing part 26 has a recess 26 a provided in the mandrel 22, a groove part 26 b, a nut 26 c, and a window part 26 d provided in the mandrel guide 23.
  • the groove 26b guides the probe 13 of the digital micrometer head 10 into the recess 26a.
  • the tip of the probe 13 of the digital micrometer head 10 is stepped, and the most advanced surface has a threaded portion 13a.
  • a nut 26c is screwed onto the screw portion 13a of the probe 13 of the digital micrometer head 10 protruding from the groove portion 26b. Thereby, the probe 13 of the digital micrometer head 10 is fixed to the mandrel 22 so as to be detachable.
  • the tip fixing portion 27 has a plurality of through holes (reference numerals omitted) provided in the mandrel guide 23 and bolts 27b inserted into the respective through holes.
  • Each through hole is a screw hole, and penetrates from the outer periphery of the mandrel guide 23 toward the groove 23b.
  • the bolts 27b screwed through the respective through holes abut against the surface of the tip portion 11f of the micrometer head main body 11 and fasten them. Thereby, the front-end
  • the attachment 20 is configured to be detachable from the digital micrometer head 10, even when the hole diameter of the measurement object is greatly different, the attachment 20 can be replaced.
  • the hole diameter of the object to be measured differs greatly by replacing the attachment for measuring the hole diameter of ⁇ 20 to 25 with the attachment for measuring the hole diameter of ⁇ 30 to 35 Even so, it can be handled.
  • the computing unit 11a of the micrometer head main body 11 shown in FIG. 2 uses the digital data of the diameter D of the divided cylindrical portion 21 that expands and contracts according to the advance / retreat position of the probe 13 generated by the digital micrometer head 10. It has a function as a data generation part which generates based on digital data. Thereby, the digital data of the hole diameter can be calculated from the digital data generated by the digital micrometer head 10. An example of the calculation is shown in FIG. A function as a data generation unit is provided on the computer system 30 side, and the digital data of the diameter D of the divided cylindrical unit 21 that the computer system 30 expands / contracts is used to advance and retract the probe 13 generated by the digital micrometer head 10. You may comprise so that it may produce
  • the divided cylindrical portion 21 in the measurement system 1 is sufficiently expanded and contracted into the hole 41 of the measurement object 40, and the spindle 12 of the digital micrometer head 10 is extended in the direction in which the divided cylindrical portion 21 expands. Rotate.
  • the spindle 12 cannot rotate.
  • the value at that time is measured as the hole diameter of the hole 41 of the measurement object 40, and the digital data at that time is displayed on the display unit 11 b of the digital micrometer head 10 by a predetermined operation, and communication is performed from the digital micrometer head 10.
  • the data is transmitted to the computer system 30 side via the unit 11c and the antenna 11d.
  • FIG. 9 is an example of a histogram created based on the measurement results accumulated by the computer system 30.
  • the theoretical histogram has a normal distribution from the center of tolerance, but actually has a distribution such as A, for example. However, the distribution gradually becomes B due to end mill wear and the like.
  • This measurement system 1 clearly shows how much correction is made to the tolerance center in real time during product manufacture. This correction is, for example, correcting the rotational speed or time of the end mill. Therefore, the trend analysis as described above contributes to quality improvement. Also, the end mill replacement time can be predicted. Furthermore, trend analysis may be performed by statistically analyzing various information including measurement data.
  • the hole diameter can be measured by the divided cylindrical portion 21 for measuring the hole diameter whose diameter expands / contracts, it is not necessary to prepare a large number of types of pin gauges as in the pin gauge system. .
  • the attachment 20 may be attached to the probe 13 of the digital micrometer head 10
  • the system configuration is simple, and wide measurement can be performed by appropriately replacing the attachment 20 that covers different measurement ranges. The range can be covered.
  • This measuring system 1 is configured to measure the hole diameter by a combination of the digital micrometer head 10 and the divided cylindrical portion 21 for measuring the hole diameter whose diameter D expands and contracts as the probe 13 advances and retreats. Therefore, the hole diameter can be measured accurately and in a short time.
  • the hole diameter data can be calculated from digital data, manual data input to a PC or the like becomes unnecessary. Accordingly, erroneous input of data is eliminated, and data is input in real time on the PC side. For example, trend analysis or the like can be performed in real time during product manufacturing.
  • the present invention is not limited to the above embodiment, and can be implemented with various modifications or applications.
  • the scope of the implementation also belongs to the technical scope of the present invention.
  • the digital micrometer head 10 and the attachment 20 are configured so that the type of the attachment 20 attached to the digital micrometer head 10 can be identified, and the data generation unit is correct digital according to the identified type of the attachment 20. Data may be generated. More specifically, for example, when there are two types of attachments, an attachment for measuring a hole diameter of ⁇ 20 to 25 and an attachment for measuring a hole diameter of ⁇ 30 to 35, the digital micrometer head 10 is mounted. The digital micrometer head 10 discriminates which of the attachments is present, and the calculation unit 11a serving as a theta generation unit generates digital data of the diameter of the divided cylindrical unit 21 according to the identification result.
  • a convex portion corresponding to the type of attachment is provided on a predetermined contact surface of the attachment with the digital micrometer head 10, while a sensor for detecting the convex portion is provided on the digital micrometer head 10.
  • the digital micrometer head has been described as an example of the measuring device.
  • any measuring device that generates digital data according to the advance / retreat position of the measuring element may be used.
  • the measurement system 1 may be configured such that the measurement person presses a predetermined switch such as the digital micrometer head 10 after measurement to transfer the measurement data to the PC. Measurement may be performed after a predetermined switch of the micrometer head 10 is pressed, and then the measurement data may be automatically transferred to the PC. For example, when the measurer presses a predetermined switch of the digital micrometer head 10 and then inserts the divided cylindrical portion 21 as a measuring element for measurement into the hole, the automatic measurement mode is set, and the measurement is automatically determined when stable. Then, the measurement data may be transferred to the PC. That is, normally, the measurement person recognizes that the measurement has been performed, and presses a switch, a foot switch or the like to transfer the measurement data to the PC.
  • the divided cylinder which is a measuring element is used. It may be configured such that the unit 21 enters an operation of measuring the measurement object, automatically determines where the measurement data is stable, and transfers the measurement data to the PC.
  • the place where the measurement data is stable is typically a case where data within the same or predetermined range can be measured continuously for several seconds or many times.
  • the timing for recording measurement data was input using a push button switch, foot switch, etc., but when performing subtle measurements, it is possible to keep your hand or keep your body posture. Often necessary.
  • the automatic measurement mode according to the present invention it becomes possible to prevent a subtle error due to a minute change in posture, and the measurer only has to concentrate on the measurement posture. Can be raised.
  • the measurer when the measurer performs the measurement work several times, for example, when the switch is manually pressed, the measurement flow is learned, and the above-described automatically stable You may comprise so that the process which makes a judgment may be entered.
  • the position range of the divided cylindrical portion 21 that is the measuring element is within the range of the target dimension to be measured, it is automatically determined from the position that the search operation for measurement has been started.
  • the measurement target value is automatically determined, and when it enters the range of, for example, plus or minus 0.01 mm, the measurement mode is entered, and the data is transferred when the value is held for several seconds. You may comprise.
  • the average value is automatically calculated by the digital micrometer head 10 or the like, and the data of the average value is transferred to the PC.
  • You may comprise.
  • the digital micrometer head 10 may be configured to set an average calculation mode that is a mode different from the normal measurement mode.
  • the number of measurements may be set in advance, and the set average setting mode and the average number of times may be configured to operate in the mode.
  • it has a function to omit abnormal values and out-of-problem numerical values, and sums only the numerical values that are estimated to have been measured correctly.
  • the determination of the abnormal value may be configured so that, for example, a measurer who is a user can freely set it.
  • the measurer may specify a range outside the target numerical value.
  • the measurement value may be compared several times with respect to the measured value, and processing such as omitting the protruding value may be automatically performed.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
PCT/JP2017/040378 2017-01-27 2017-11-09 測定システム及び穴径測定用のアタッチメント Ceased WO2018139002A1 (ja)

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JP2017-012706 2017-01-27
JP2017012706A JP6590415B2 (ja) 2017-01-27 2017-01-27 測定システム及び穴径測定用のアタッチメント

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3812695A1 (en) * 2019-10-24 2021-04-28 Rolls-Royce plc Gauge
CN113175905A (zh) * 2021-04-29 2021-07-27 浙江陀曼云计算有限公司 基于时序数据波动的测微计参数自适应获取方法及系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5832307U (ja) * 1981-08-20 1983-03-02 株式会社リコー 内径測定器
JPS6041811U (ja) * 1983-08-29 1985-03-25 株式会社ミツトヨ 内径測定ユニット
US4866855A (en) * 1988-02-08 1989-09-19 Sunnen Products Company Gaging head for use on dial bore gages
JP2005030460A (ja) * 2003-07-09 2005-02-03 Honda Motor Co Ltd フォイル式流体軸受、フォイル式流体軸受の製造方法およびフォイル式流体軸受の寸法測定装置
JP2005221320A (ja) * 2004-02-04 2005-08-18 Tokyo Seimitsu Co Ltd 測定ヘッド及びプローブ
JP2016164551A (ja) * 2015-02-18 2016-09-08 ゼネラル・エレクトリック・カンパニイ 伸縮式ゲージを用いた測定のための方法およびシステム

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5832307U (ja) * 1981-08-20 1983-03-02 株式会社リコー 内径測定器
JPS6041811U (ja) * 1983-08-29 1985-03-25 株式会社ミツトヨ 内径測定ユニット
US4866855A (en) * 1988-02-08 1989-09-19 Sunnen Products Company Gaging head for use on dial bore gages
JP2005030460A (ja) * 2003-07-09 2005-02-03 Honda Motor Co Ltd フォイル式流体軸受、フォイル式流体軸受の製造方法およびフォイル式流体軸受の寸法測定装置
JP2005221320A (ja) * 2004-02-04 2005-08-18 Tokyo Seimitsu Co Ltd 測定ヘッド及びプローブ
JP2016164551A (ja) * 2015-02-18 2016-09-08 ゼネラル・エレクトリック・カンパニイ 伸縮式ゲージを用いた測定のための方法およびシステム

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3812695A1 (en) * 2019-10-24 2021-04-28 Rolls-Royce plc Gauge
CN113175905A (zh) * 2021-04-29 2021-07-27 浙江陀曼云计算有限公司 基于时序数据波动的测微计参数自适应获取方法及系统
CN113175905B (zh) * 2021-04-29 2023-03-10 浙江陀曼云计算有限公司 基于时序数据波动的测微计参数自适应获取方法及系统

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