CN102230787B - Device for measuring depth of through hole - Google Patents
Device for measuring depth of through hole Download PDFInfo
- Publication number
- CN102230787B CN102230787B CN201110081333A CN201110081333A CN102230787B CN 102230787 B CN102230787 B CN 102230787B CN 201110081333 A CN201110081333 A CN 201110081333A CN 201110081333 A CN201110081333 A CN 201110081333A CN 102230787 B CN102230787 B CN 102230787B
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- measurement mechanism
- linear displacement
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- optical sensor
- fibre optical
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Abstract
The invention provides a device for measuring the depth of a through hole. The device comprises a linear displacement sensor, a double-ejection-rod cylinder and a side-looking optical fiber sensor, wherein two ends of the double-ejection-rod cylinder are coaxially and fixedly connected with the side-looking optical fiber and the linear displacement sensor through binding heads respectively; and the double-ejection-rod cylinder, the linear displacement sensor and the side-looking optical fiber sensor are connected with an external controller respectively. According to the measuring device, the side-looking optical fiber sensor is used for detecting a hole wall, so that the measuring device is not limited by a detection material and can be used for measuring through holes made of various materials. The measuring accuracy is increased by using the linear displacement sensor. In particular, the device is suitable for automatic measurement, and is convenient to integrate in automation equipment as one of an automatic processing procedure; and the measuring efficiency can be greatly increased.
Description
Technical field
The present invention relates to the mechanical measurement field, be specially a kind of via depth measurement mechanism.
Background technology
In machining and automated production process, need in a large number various processed through holes on the part to be carried out depth survey.Existing measuring technique mainly adopts hand dippings such as vernier caliper, pit gauge, low, the low precision of efficiency of measurement.Special, along with the automaticity raising of field of machining, hand dipping is unfavorable for automated production.In addition, because the difference of part material, when instrument with contacts such as employing vernier caliper are measured via depth, often also can be owing to part deformation causes occurring big measuring error.
Summary of the invention
The technical matters that solves
Low for overcoming in the existing hand dipping via depth technology efficiency of measurement, shortcomings such as low precision improve the automaticity that via depth is measured, and the present invention proposes a kind of via depth measurement mechanism.
Technical scheme
Technical scheme of the present invention is:
Said a kind of via depth measurement mechanism is characterized in that: comprise linear displacement transducer, two rod cylinders, side-looking Fibre Optical Sensor; Respectively with the side-looking Fibre Optical Sensor and linear displacement transducer is coaxial is fixedly connected, two rod cylinders, linear displacement transducer and side-looking Fibre Optical Sensor link to each other with peripheral control unit respectively through connector at two rod cylinder piston rods two ends.
An optimal technical scheme of the present invention is characterized in that: also include measurement mechanism shell and supporting seat; The measurement mechanism shell is the hollow cylinder structure, and two rod cylinders, linear displacement transducer and side-looking Fibre Optical Sensor are fixedly mounted in the measurement mechanism shell; Supporting seat is hollow frustum cone structure, and the end that two rod cylinders are installed in supporting seat osculum end and the measurement mechanism shell is fixedly linked, and supporting seat central axis and measurement mechanism shell central axis conllinear.
An optimal technical scheme of the present invention is characterized in that: on the hollow round platform structure side wall of supporting base, have viewport, at the supporting base big opening end flange is arranged, plane, flange place is perpendicular to the supporting base central axis.
An optimal technical scheme of the present invention is characterized in that: the supporting base material is a transmission material.
Beneficial effect
The via depth measurement mechanism that the present invention proposes adopts the side-looking Fibre Optical Sensor to detect hole wall, makes the not examined materials limitations of this measurement mechanism, can measure the through hole of various materials.Use linear displacement transducer to improve the precision of measuring.Special, this device is suitable for automatic measurement, can improve efficiency of measurement greatly, is convenient to be integrated in the automation equipment as one of robotization process operation.
Description of drawings
Fig. 1: structural representation of the present invention;
Wherein: 1, measurement mechanism shell; 2, linear displacement transducer; 3, displacement transducer connector; 4, two rod cylinders; 5, set nut; 6, supporting base; 7, Fibre Optical Sensor connector; 8, side-looking Fibre Optical Sensor
Embodiment
Below in conjunction with specific embodiment the present invention is described:
Embodiment:
The via depth measurement mechanism that adopts in the present embodiment comprises linear displacement transducer 2, two rod cylinders 4, side-looking Fibre Optical Sensor 8.
The cylinder piston rod of two rod cylinders 4 runs through whole piston cylinder, and the piston rod two ends stretch out piston cylinder, and the moving of piston can drive piston rod two ends link simultaneously and move with displacement in the same way.One end of two rod cylinder 4 piston rods through displacement transducer connector 3 and linear displacement transducer 2 be fixedly linked, the other end of two rod cylinder 4 piston rods is fixedly linked through Fibre Optical Sensor connector 7 and side-looking Fibre Optical Sensor 8; And two rod cylinders 4 are coaxial installation with linear displacement transducer 2 and side-looking Fibre Optical Sensor 8, make the axial displacement of side-looking Fibre Optical Sensor 8 to be delivered to exactly on the linear displacement transducer 2.Side-looking Fibre Optical Sensor 8 is selected reflection-type side-looking Fibre Optical Sensor for use.
Two rod cylinder 4, linear displacement transducer 2 and side-looking Fibre Optical Sensor 8 are installed in the measurement mechanism shell 1; Measurement mechanism shell 1 is the hollow cylinder structure; In the present embodiment because two rod cylinders 4 are different with the external diameter of linear displacement transducer 2; So the through hole of measurement mechanism shell 1 is a step through-hole, the large aperture of step through-hole is identical with two rod cylinder 4 external diameters, and the small-bore of step through-hole is identical with linear displacement transducer 2 external diameters; Two rod cylinders 4 are fixedly connected with measurement mechanism shell 1 one ends through set nut 5, and linear displacement transducer 2 adopts interference fit to fix with step through-hole.
For the accuracy that guarantees to measure; When side-looking Fibre Optical Sensor 8 moves axially; The moving direction that guarantees side-looking Fibre Optical Sensor 8 is parallel with the central axis of through hole to be measured, so the present invention also includes supporting seat 6, supporting seat 6 is hollow frustum cone structure; The end that two rod cylinders 4 are installed in supporting seat 6 osculum ends and the measurement mechanism shell 1 is fixedly linked, and the central axis of supporting seat 6 frustum cone structures and measurement mechanism shell 1 central axis conllinear.In order better to observe the position of side-looking Fibre Optical Sensor 8 and through hole to be measured, on supporting seat 6 frustum cone structure sidewalls, have viewport.In addition, at supporting seat 6 big opening ends flange is arranged, plane, flange place is perpendicular to the supporting base central axis.In order to guarantee side-looking Fibre Optical Sensor 8 operate as normal, supporting seat 6 adopts transmission material.
Two rod cylinder 4, linear displacement transducer 2 and side-looking Fibre Optical Sensor 8 link to each other with peripheral control unit respectively; During present embodiment work; Supporting seat 6 end face flanges are close to surface of the work, make measurement mechanism central axis through-bore axis parallel and to be measured, and observe through the viewport of supporting seat 6; Guarantee that side-looking Fibre Optical Sensor 8 is in the top of through hole to be measured; Peripheral control unit starts linear displacement transducer 2 and side-looking Fibre Optical Sensor 8, drives two rod cylinder 4 setting in motions simultaneously, and drives side-looking Fibre Optical Sensor 8 and linear displacement transducer 2 motions.Because supporting seat 6 adopts transmission materials, through controller externally side-looking Fibre Optical Sensor 8 induction threshold values are set and make 8 pairs of supporting seats 6 of side-looking Fibre Optical Sensor insensitive.After two rod cylinders 4 driving side-looking Fibre Optical Sensors 8 are sensed through hole to be measured; The 2 record displacements of peripheral control unit control linear displacement transducer; Stretch out through hole to be measured up to side-looking Fibre Optical Sensor 8; When no longer sensing through hole to be measured, linear displacement transducer 2 stops to write down displacement, thereby obtains the degree of depth of through hole to be measured.
When via depth measurement mechanism of the present invention is integrated in the automation equipment, does not then need supporting base 6, but need automation equipment to guarantee that via depth measuring center parallel axes is in through-bore axis to be measured.
Claims (4)
1. a via depth measurement mechanism is characterized in that: comprise linear displacement transducer, two rod cylinders, side-looking Fibre Optical Sensor; Respectively with the side-looking Fibre Optical Sensor and linear displacement transducer is coaxial is fixedly connected, two rod cylinders, linear displacement transducer and side-looking Fibre Optical Sensor link to each other with peripheral control unit respectively through connector at two rod cylinder piston rods two ends.
2. a kind of via depth measurement mechanism according to claim 1 is characterized in that: also include measurement mechanism shell and supporting seat; The measurement mechanism shell is the hollow cylinder structure, and two rod cylinders, linear displacement transducer and side-looking Fibre Optical Sensor are fixedly mounted in the measurement mechanism shell; Supporting seat is hollow frustum cone structure, and the end that two rod cylinders are installed in supporting seat osculum end and the measurement mechanism shell is fixedly linked, and supporting seat central axis and measurement mechanism shell central axis conllinear.
3. a kind of via depth measurement mechanism according to claim 2 is characterized in that: on the hollow round platform structure side wall of supporting base, have viewport, at the supporting base big opening end flange is arranged, plane, flange place is perpendicular to the supporting base central axis.
4. a kind of via depth measurement mechanism according to claim 2 is characterized in that: the supporting base material is a transmission material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110081333A CN102230787B (en) | 2011-03-31 | 2011-03-31 | Device for measuring depth of through hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110081333A CN102230787B (en) | 2011-03-31 | 2011-03-31 | Device for measuring depth of through hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102230787A CN102230787A (en) | 2011-11-02 |
| CN102230787B true CN102230787B (en) | 2012-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110081333A Expired - Fee Related CN102230787B (en) | 2011-03-31 | 2011-03-31 | Device for measuring depth of through hole |
Country Status (1)
| Country | Link |
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| CN (1) | CN102230787B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403882A (en) * | 2016-12-01 | 2017-02-15 | 无锡明珠钢球有限公司 | Hole depth automation measurement device |
| CN108692633A (en) * | 2018-06-13 | 2018-10-23 | 新乡市恒润机电有限公司 | Retarder frame bracket planetary gear shaft position of mounting hole degree online test method |
| CN113654776A (en) * | 2021-07-22 | 2021-11-16 | 重庆锦鹏得祥机电设备有限公司 | Valve body hole data automatic acquisition device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2635382A1 (en) * | 1988-08-10 | 1990-02-16 | Aerospatiale | Device for measuring the depth of a hole in an article or an assembly of articles |
| JP2004257775A (en) * | 2003-02-24 | 2004-09-16 | National Institute Of Advanced Industrial & Technology | Method and device for measuring indentation depth of spherical indenter |
| JP2005093524A (en) * | 2003-09-12 | 2005-04-07 | Toshiba Corp | Monitoring device and monitoring method |
| CN201429412Y (en) * | 2009-06-26 | 2010-03-24 | 徐州泰诺仕视觉科技有限公司 | Endoscope depth measuring device |
| CN202024739U (en) * | 2011-03-31 | 2011-11-02 | 西北工业大学 | Through hole depth measuring device |
-
2011
- 2011-03-31 CN CN201110081333A patent/CN102230787B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2635382A1 (en) * | 1988-08-10 | 1990-02-16 | Aerospatiale | Device for measuring the depth of a hole in an article or an assembly of articles |
| JP2004257775A (en) * | 2003-02-24 | 2004-09-16 | National Institute Of Advanced Industrial & Technology | Method and device for measuring indentation depth of spherical indenter |
| JP2005093524A (en) * | 2003-09-12 | 2005-04-07 | Toshiba Corp | Monitoring device and monitoring method |
| CN201429412Y (en) * | 2009-06-26 | 2010-03-24 | 徐州泰诺仕视觉科技有限公司 | Endoscope depth measuring device |
| CN202024739U (en) * | 2011-03-31 | 2011-11-02 | 西北工业大学 | Through hole depth measuring device |
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| CN102230787A (en) | 2011-11-02 |
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Owner name: NORTHWESTERN POLYTECHNICAL UNIVERSITY Effective date: 20140814 Owner name: JIANGSU HEHAI GROUP CO., LTD. Free format text: FORMER OWNER: NORTHWESTERN POLYTECHNICAL UNIVERSITY Effective date: 20140814 |
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Free format text: CORRECT: ADDRESS; FROM: 710072 XI'AN, SHAANXI PROVINCE TO: 226600 NANTONG, JIANGSU PROVINCE |
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Effective date of registration: 20140814 Address after: Baiding town Haian County 226600 Jiangsu city of Nantong Province Liu Jicun happy four group Patentee after: JIANGSU HEHAI GROUP Co.,Ltd. Patentee after: Northwestern Polytechnical University Address before: 710072 Xi'an friendship West Road, Shaanxi, No. 127 Patentee before: Northwestern Polytechnical University |
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Granted publication date: 20121010 |