CN102243057A - Inner diameter measurement device and measuring method - Google Patents
Inner diameter measurement device and measuring method Download PDFInfo
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- CN102243057A CN102243057A CN2010101688701A CN201010168870A CN102243057A CN 102243057 A CN102243057 A CN 102243057A CN 2010101688701 A CN2010101688701 A CN 2010101688701A CN 201010168870 A CN201010168870 A CN 201010168870A CN 102243057 A CN102243057 A CN 102243057A
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- inner diameter
- measuring device
- hole
- measuring
- step motor
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Abstract
The invention provides an inner diameter measurement device, which is used for measuring the inner diameter of a hole. The inner diameter measurement device comprises a device body, a detection contact, a control unit, a display unit and a step motor, wherein the detection contact is positioned on the device body and comprises two measuring jaws; the measuring jaws expand outwards under the driving of the step motor and butt against the inner wall of a hole; the control unit is used for receiving a control signal which is sent when the measuring jaws contact the inner wall and controlling the step motor to stop working according to the control signal; the control unit is used for calculating the step number of the step motor and calculating the inner diameter by utilizing the expanding angle of the measuring jaws; and the display unit is used for displaying the calculated inner diameter. The invention also provides an inner diameter measuring method.
Description
Technical field
The present invention relates in particular to a kind of inner diameter measuring device and measuring method about a kind of measurement mechanism and measuring method.
Background technology
Industry uses vernier caliper to come the internal diameter of Measuring Object usually: vernier caliper two measuring claws are stretched in the hole of object under test and be butted on the inwall in hole, read the internal diameter that scale value can be learnt the hole then.
When using the vernier caliper measurement internal diameter, because the position that measuring claw supported might not be two circumferential point on the diameter of endoporus of object under test, but two points on string make that the inner diameter values of measuring is less than normal.
Summary of the invention
In view of this, be necessary to provide a kind of simple and effective inner diameter measuring device and measuring method.
A kind of inner diameter measuring device, it is used for the internal diameter of measured hole, described inner diameter measuring device comprises body, detection contact, control module, display unit and step motor, described detection contact is positioned on the described body and comprises two measuring claws, described measuring claw drives down the outwards inwall in scattering conflict hole in described step motor, described measuring claw sends control signal and makes described control module control described step motor for described control module to quit work when conflicting inwall, described control module calculates the number of steps of described step motor and utilizes the open angle calculation of described measuring claw to draw internal diameter, and described display unit is used for showing the internal diameter of calculating.
Further, described measuring claw has spicule.
A kind of inner diameter measurement method, it comprises the steps: the initialization inner diameter measuring device; Object under test is placed on the platform, and make the axial vertical platform in hole; The detection contact of inner diameter measuring device is extend in the hole of object under test; Opening detection contact makes the inwall in measuring claw and hole inconsistent; Control module receives the induced signal of spicule, induced signal is handled and calculated according to formula D=d+2lsin θ the internal diameter that portals; The inner diameter values of gained is shown in display unit.
Compared with prior art, the inner diameter measuring device of the embodiment of the invention and measuring method adopt utilizes the open angle of measuring claw to calculate the internal diameter of object under test, thereby makes measurement result accurate; Again, adopt spicule to contact with the inwall of object under test, contact area is little, has reduced the error that contact point causes.
Description of drawings
Fig. 1 is the synoptic diagram of embodiment of the invention inner diameter measuring device.
Fig. 2 is the synoptic diagram of embodiment of the invention inner diameter measuring device under the measurement state.
Fig. 3 is the process flow diagram of embodiment of the invention inner diameter measurement method.
The main element symbol description
Inner diameter measuring device 10
First measuring claw 121
Second measuring claw 122
Step motor 15
Support 20
Object under test 30
First principal arm 1211
Second principal arm 1221
First rotating shaft 131
Second rotating shaft 132
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
See also Figure 1 and Figure 2, the inner diameter measuring device 10 of the embodiment of the invention comprises body 11, detection contact 12, display unit 13, control module 14, step motor 15 and the button 16 that makes zero.
First measuring claw 121 has first principal arm 1211 and has first spicule 1213 with first sensing arm, 1212, the first sensing arm, 1212 ends that are positioned at first principal arm, 1,211 one ends; Second measuring claw 13 has second principal arm 1221 and has second spicule, 1223, the first spicules 1213 and the 1223 opposing settings of second spicule with second sensing arm, 1222, the second sensing arm, 1222 ends that are positioned at second principal arm, 1,221 one ends.
Under the state to be measured, first measuring claw 121 and second measuring claw 122 are in vertically and the position that is parallel to each other, this moment, the end diameter that is positioned at a surface level of first spicule 1213 and second spicule 1223 was on the d circumference, and first spicule 1213 and second spicule 1223 are two end points of diameter; During measurement, first measuring claw 121 and second measuring claw 122 are opened and θ at an angle during state to be measured with it.
Thereby step motor 15 is used for driving first rotating shaft 131 and second rotating shaft 132 and rotates win measuring claw 121 and second measuring claw 122 are rotated simultaneously, and then changes the spacing between first spicule 1213 and second spicule 1223.
The measurement result that display unit 13 is used for drawing through control module 14 shows.Display unit 14 can be LCDs or light emitting diode (LED) display screen.
Start the button 16 that makes zero, the last time measurement result is made zero, step motor 15 drives first measuring claws 121 and second measuring claw 122 is replied initial position, i.e. θ=0.
In the measuring process, useable holder 20 is come support fixation inner diameter measuring device 10, prevents run-off the straight in the measuring process, makes the contact point instability.
Because inner diameter measuring device 10 adopts and utilizes first measuring claw 121 and second measuring claw, 122 open angles to calculate the internal diameter of object under test, thereby makes measurement result accurate; Again, adopt spicule to contact with the inwall of object under test, contact area is little, has reduced the error that contact point causes.
See also Fig. 3, a kind of inner diameter measurement method is as follows:
S1, the initialization inner diameter measuring device.
Particularly, press the button 16 that makes zero, the display message of display unit 13 is emptied, first measuring claw 121 and second measuring claw 122 be in state to be measured.
S2 places object under test on the platform, and makes the axial vertical platform in hole.
Particularly, object under test 30 is placed on the platform 100, and make the axle vertical platform 100 of object under test 30.
S3 extend into the detection contact of inner diameter measuring device in the hole of object under test.
Particularly, support 20 is placed the both sides of object under test 30, adjust first measuring claw 121 of inner diameter measuring device 10 and the central shaft that second measuring claw 122 makes its parallel hole.
S4 opens detection contact and makes the inwall in measuring claw and hole inconsistent.
Particularly, control module 14 control step motors 15 make first measuring claw 121 and second measuring claw 122 contact with the inwall in hole in walk around 132 rotation of first rotating shaft 131 and second.
S5, control module receive the induced signal of spicule, induced signal are handled and calculated according to formula D=d+2lsin θ the internal diameter that portals.
Particularly, when first spicule 1213 and second spicule 1223 touch the inwall in hole, can send induced signal and give control module 14, control module 14 stops to drive step motor 15 and calculated step motor 15 accumulative total number of steps, thereby can draw θ, and then calculate the internal diameter that portals according to formula.
S6 is shown in display unit with the inner diameter values of gained.
Be understandable that those skilled in the art also can do other variation etc. and be used for design of the present invention in spirit of the present invention, as long as it does not depart from technique effect of the present invention and all can.The variation that these are done according to spirit of the present invention all should be included within the present invention's scope required for protection.
Claims (8)
1. inner diameter measuring device, it is used for the internal diameter of measured hole, described inner diameter measuring device comprises body, detection contact, control module, display unit and step motor, described detection contact is positioned on the described body and comprises two measuring claws, described measuring claw drives in described step motor and can outwards open down and the inwall in conflict hole, described control module is used to receive the control signal sent when described measuring claw is conflicted inwall and controls described step motor thus and quits work, described control module is used to calculate the number of steps of described step motor and utilizes the open angle calculation of described measuring claw to draw internal diameter, and described display unit is used for showing the internal diameter of calculating.
2. inner diameter measuring device as claimed in claim 1 is characterized in that, described control module calculates internal diameter according to D=d+2lsin θ, D is the internal diameter in hole, d is the distance between following two the described measuring claws of state to be measured, and θ is the open angle of described measuring claw, and l is the length of described measuring claw.
3. inner diameter measuring device as claimed in claim 1 is characterized in that, each described measuring claw comprises principal arm and sensing arm, and described sensing arm is positioned at described principal arm end and is used for conflicting the inwall in hole.
4. inner diameter measuring device as claimed in claim 1 is characterized in that, has spicule be used for the conflicting inwall in hole on the described sensing arm.
5. inner diameter measuring device as claimed in claim 4 is characterized in that, the material of described spicule is a piezoelectric.
6. as the arbitrary described inner diameter measuring device of claim 1 to 5, it is characterized in that described principal arm is arranged on the described body by rotating shaft.
7. inner diameter measuring device as claimed in claim 6 is characterized in that, described inner diameter measuring device further comprises the button that makes zero that is arranged on the described body.
8. inner diameter measurement method, it comprises the steps:
The initialization inner diameter measuring device;
Object under test is placed on the platform, and make the axial vertical platform in hole;
The detection contact of inner diameter measuring device is extend in the hole of object under test;
Opening detection contact makes the inwall in measuring claw and hole inconsistent;
Control module receives the induced signal of spicule, induced signal is handled and calculated according to formula D=d+2lsin θ the internal diameter that portals;
The inner diameter values of gained is shown in display unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101688701A CN102243057A (en) | 2010-05-11 | 2010-05-11 | Inner diameter measurement device and measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101688701A CN102243057A (en) | 2010-05-11 | 2010-05-11 | Inner diameter measurement device and measuring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102243057A true CN102243057A (en) | 2011-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101688701A Pending CN102243057A (en) | 2010-05-11 | 2010-05-11 | Inner diameter measurement device and measuring method |
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| Country | Link |
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| CN (1) | CN102243057A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052542A (en) * | 2016-05-20 | 2016-10-26 | 潍坊天恒检测科技有限公司 | Detection device used for measuring container internal diameter |
| CN108180810A (en) * | 2017-12-26 | 2018-06-19 | 湖南天洋信息科技有限公司 | A kind of measuring method of gas electricity instrument and application the gas electricity instrument |
| CN112880525A (en) * | 2021-01-11 | 2021-06-01 | 河北光兴半导体技术有限公司 | Aperture measuring device |
| CN113446927A (en) * | 2021-05-12 | 2021-09-28 | 潍柴动力股份有限公司 | Engine valve guide pipe inner diameter measuring device, method and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040865A (en) * | 1989-10-20 | 1990-03-28 | 山东矿业学院 | Realize the immoderate goniometry method of electronic theodolite |
| CN1916565A (en) * | 2006-09-08 | 2007-02-21 | 中国科学院上海光学精密机械研究所 | Revolving type spherometer, and measuring method |
| US20090249635A1 (en) * | 2008-04-03 | 2009-10-08 | Foxnum Technology Co., Ltd. | Apparatus and method for measuring diameter of hole |
| CN101773955A (en) * | 2010-03-15 | 2010-07-14 | 河南承信齿轮传动有限公司 | Full-automatic plate bending machine and control method thereof |
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2010
- 2010-05-11 CN CN2010101688701A patent/CN102243057A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040865A (en) * | 1989-10-20 | 1990-03-28 | 山东矿业学院 | Realize the immoderate goniometry method of electronic theodolite |
| CN1916565A (en) * | 2006-09-08 | 2007-02-21 | 中国科学院上海光学精密机械研究所 | Revolving type spherometer, and measuring method |
| US20090249635A1 (en) * | 2008-04-03 | 2009-10-08 | Foxnum Technology Co., Ltd. | Apparatus and method for measuring diameter of hole |
| CN101773955A (en) * | 2010-03-15 | 2010-07-14 | 河南承信齿轮传动有限公司 | Full-automatic plate bending machine and control method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 张琳: "内径测量的误差分析及对策", 《工具技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052542A (en) * | 2016-05-20 | 2016-10-26 | 潍坊天恒检测科技有限公司 | Detection device used for measuring container internal diameter |
| CN108180810A (en) * | 2017-12-26 | 2018-06-19 | 湖南天洋信息科技有限公司 | A kind of measuring method of gas electricity instrument and application the gas electricity instrument |
| CN112880525A (en) * | 2021-01-11 | 2021-06-01 | 河北光兴半导体技术有限公司 | Aperture measuring device |
| CN113446927A (en) * | 2021-05-12 | 2021-09-28 | 潍柴动力股份有限公司 | Engine valve guide pipe inner diameter measuring device, method and system |
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Application publication date: 20111116 |