CN102878899A - Device for measuring length of stepped hole inside deep hole - Google Patents

Device for measuring length of stepped hole inside deep hole Download PDF

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Publication number
CN102878899A
CN102878899A CN2012103598840A CN201210359884A CN102878899A CN 102878899 A CN102878899 A CN 102878899A CN 2012103598840 A CN2012103598840 A CN 2012103598840A CN 201210359884 A CN201210359884 A CN 201210359884A CN 102878899 A CN102878899 A CN 102878899A
Authority
CN
China
Prior art keywords
stepped hole
measuring
hole
piece
location
Prior art date
Application number
CN2012103598840A
Other languages
Chinese (zh)
Inventor
周佼
Original Assignee
周佼
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 周佼 filed Critical 周佼
Priority to CN2012103598840A priority Critical patent/CN102878899A/en
Publication of CN102878899A publication Critical patent/CN102878899A/en

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Abstract

The invention discloses a device for measuring the length of the stepped hole inside a deep hole, which includes a measuring device body, a spring, a measuring bar, a dial indicator, a fixed measuring block and a movable measuring block, wherein the stepped hole is arranged in the measuring device body; one end of the measuring bar is positioned in the stepped hole; a positioning convex shoulder is arranged on the measuring bar; the measuring bar is sleeved with the spring; one end of the spring is positioned by the positioning convex shoulder; the other end of the spring is spaced by the step of the stepped hole; one end of the dial indicator extends into the stepped hole from one end of the stepped hole to be contacted with the end part of the measuring bar; the fixed measuring block is fixedly connected at an orifice at the other end of the stepped hole; a through hole allowing the measuring bar to extend out is arranged in the fixed measuring block; and the other end of the measuring bar penetrating through the through hole in the fixed measuring block is fixedly connected with the movable measuring block. The device provided by the invention has the advantages of high measuring accuracy and efficiency.

Description

Stepped hole length-measuring appliance in the deep hole

Technical field

The present invention relates to the rear field of measuring technique of workpiece processing, be specifically related to stepped hole length-measuring appliance in a kind of deep hole.

Background technology

For the workpiece with deep hole, in order to guarantee the machining precision of deep hole, to the step that is absolutely necessary of the deep hole measurement after the processing.Fig. 2 is an axle sleeve with deep hole, has stepped hole D2 in the deep hole bottom, its length is L2, the size of stepped hole L2 needs strict control, therefore need Measurement accuracy, if calculate stepped hole L2=CA-CB by measuring the C face to the degree of depth on A, B two sides, then not only measuring error is large, also pretty troublesome, measure efficient low.For this reason, need the survey instrument of a special use that the stepped hole that is similar to this structure is measured

Summary of the invention

For above-mentioned technical matters, the purpose of this invention is to provide a kind of interior stepped hole length-measuring appliance of deep hole with high-acruracy survey, the present invention has advantages of that simultaneously the efficient of measurement is high.

The technical scheme that realizes above-mentioned purpose is as follows:

Stepped hole length-measuring appliance in the deep hole, comprise the cubing body, spring, measuring staff, dial gauge, the location survey piece, the moving piece of surveying, the cubing body is provided with stepped hole, one end of measuring staff is arranged in stepped hole, measuring staff is provided with the location convex shoulder, spring housing is on measuring staff, one end of spring is by convex shoulder location, location, the other end of spring is spacing by the step of stepped hole, one end of dial gauge extend into the stepped hole from stepped hole one end and contacts with the end of measuring staff, and described location survey piece is fixedly connected on the other end aperture of stepped hole, and the location survey piece is provided with the through hole that stretches out for measuring staff, the other end of measuring staff is fixedly connected with described moving survey piece after passing through hole on the location survey piece.

Adopted such scheme, one end of cubing body is stretched in the tested stepped hole, allow first the A face of the end contact workpiece stepped hole of surveying piece, allow again the end face of location survey piece contact with workpiece stepped hole B face, at this moment, the reading of dial gauge is exactly the relative difference of stepped hole D2 length dimension and reference value.As the little 0-0.05mm of read-around ratio reference value, when namely indicator forward reading was 0-0.05mm, then the length of stepped hole was qualified.The present invention has advantages of that measuring accuracy is high and it is high to measure efficient.

Described location survey piece is columniform location survey piece, and described moving survey piece is columniform moving survey piece, and the diameter of location survey piece axial end is greater than the moving diameter of surveying the piece axial end.Such structure can make the survey piece contact with the hole end surface of tested stepped hole respectively with the location survey piece.

Described measurement mechanism also comprises a reference block that is used for the check and correction dial gauge, and reference block is provided with the simulation stepped hole.By reference block dial gauge is proofreaded, be conducive to improve and guarantee measuring accuracy.

The excircle of described cubing body is provided with sleeve, and cubing body and this sleeve are slidingly matched, and is provided with removable support at the excircle of sleeve.Can play guide effect to the cubing body by sleeve, avoid moving and survey piece and the location survey piece contacts with the end surface of step hole of reference block or measured workpiece with the state that tilts, be conducive to guarantee the precision of measuring.

Description of drawings

Fig. 1 is structural representation of the present invention;

Fig. 2 is the structural representation of measured workpiece;

In the accompanying drawing, 10 is the cubing body, and 11 is stepped hole, and 20 is spring; 30 is measuring staff, and 40 is dial gauge, and 50 is the location survey piece, and 60 are the moving piece of surveying, and 70 is reference block, and 71 are the simulation stepped hole, and 80 is sleeve, and 81 is support.

Embodiment

With reference to Fig. 1, stepped hole length-measuring appliance in the deep hole of the present invention comprises cubing body 10, spring 20, measuring staff 30, dial gauge 40, location survey piece 50, moving piece 60, reference block 70, the sleeve 80 surveyed.Cubing body 10 is provided with stepped hole 11, causes cubing body 10 to be cylindrical body.One end of measuring staff 30 is arranged in stepped hole 11, and measuring staff 11 is provided with location convex shoulder 12, and spring 20 is enclosed within on the measuring staff, and an end of spring 20 is by convex shoulder location, location, and the other end of spring 20 is spacing by the step of stepped hole 11.One end of dial gauge 40 extend into the stepped hole from stepped hole one end and contacts with the end of measuring staff 30.Location survey piece 60 is fixedly connected on the other end aperture of stepped hole, and location survey piece 50 is provided with the through hole that stretches out for measuring staff, and the other end of measuring staff 30 is fixedly connected with described moving survey piece 60 after passing through hole on the location survey piece 50.Location survey piece 50 is columniform location survey piece, and described moving survey piece is columniform moving survey piece, and the diameter of location survey piece axial end is greater than the moving diameter of surveying the piece axial end.Reference block 70 is used for check and correction dial gauge 40, and reference block 70 is provided with simulation stepped hole 71, and the simulation stepped hole is used for simulating tested stepped hole, so that proofread by 70 pairs of dial gauges of reference block.The excircle of cubing body 10 is provided with sleeve 80, and cubing body 10 is slidingly matched with this sleeve 80, is provided with removable support 81 at the excircle of sleeve 80.

See figures.1.and.2, before the measurement, proofread with 70 pairs of dial gauges 40 of reference block, when adopting reference block that dial gauge is proofreaded, making hole depth H is the maximum limit of size L2+0.10mm of measured size L2, then proofreads dial gauge with L2+0.10mm, makes pointed zero.The method of concrete check and correction dial gauge 1 is to allow first the moving survey piece 60 of measurer contact with the D face of reference block 70, and the angle left hand is held gently Compress Spring 20 of cubing body 10, allows the end face of location survey piece 50 contact with the E face of reference block 70, at this moment with dial gauge 40 zeroings.

During measurement, one end of cubing body 10 is stretched among the tested stepped hole D2, adopt method identical when proofreading dial gauge, allow first the A face of the end contact workpiece stepped hole of surveying piece 60, allow again the end face of location survey piece 50 contact with workpiece stepped hole B face, at this moment, the reading of dial gauge 40 is exactly the relative difference of stepped hole D2 length dimension and reference value.As the little 0-0.05mm of read-around ratio reference value, when namely indicator forward reading was 0-0.05mm, then stepped hole D2 length L 2 was qualified.

Claims (4)

1. stepped hole length-measuring appliance in the deep hole, it is characterized in that: comprise the cubing body, spring, measuring staff, dial gauge, the location survey piece, the moving piece of surveying, the cubing body is provided with stepped hole, one end of measuring staff is arranged in stepped hole, measuring staff is provided with the location convex shoulder, spring housing is on measuring staff, one end of spring is by convex shoulder location, location, the other end of spring is spacing by the step of stepped hole, one end of dial gauge extend into the stepped hole from stepped hole one end and contacts with the end of measuring staff, described location survey piece is fixedly connected on the other end aperture of stepped hole, the location survey piece is provided with the through hole that stretches out for measuring staff, the other end of measuring staff is fixedly connected with described moving survey piece after passing through hole on the location survey piece.
2. stepped hole length-measuring appliance in the described deep hole according to claim 1, it is characterized in that: described location survey piece is columniform location survey piece, and described moving survey piece is columniform moving survey piece, and the diameter of location survey piece axial end is greater than the moving diameter of surveying the piece axial end.
3. stepped hole length-measuring appliance in the described deep hole according to claim 1, it is characterized in that: described measurement mechanism also comprises a reference block that is used for the check and correction dial gauge, and reference block is provided with the simulation stepped hole.
4. stepped hole length-measuring appliance in the described deep hole according to claim 1, it is characterized in that: the excircle of described cubing body is provided with sleeve, and cubing body and this sleeve are slidingly matched, and are provided with removable support at the excircle of sleeve.
CN2012103598840A 2012-09-24 2012-09-24 Device for measuring length of stepped hole inside deep hole CN102878899A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012103598840A CN102878899A (en) 2012-09-24 2012-09-24 Device for measuring length of stepped hole inside deep hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012103598840A CN102878899A (en) 2012-09-24 2012-09-24 Device for measuring length of stepped hole inside deep hole

Publications (1)

Publication Number Publication Date
CN102878899A true CN102878899A (en) 2013-01-16

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CN2012103598840A CN102878899A (en) 2012-09-24 2012-09-24 Device for measuring length of stepped hole inside deep hole

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104034229A (en) * 2013-03-08 2014-09-10 大进合紧固件(昆山)有限公司 Rapid and precise testing fixture of floating piston of steering power-assisted pump
CN104296629A (en) * 2014-10-11 2015-01-21 昆山名威精密工业有限公司 Taper empty avoiding type ejector sleeve inner hole length measuring device
CN104457511A (en) * 2014-11-27 2015-03-25 贵州虹祥轴承有限公司 Connecting shaft bearing inner hole diameter inspection device
CN104482831A (en) * 2014-12-15 2015-04-01 贵州红林机械有限公司 High-accuracy in-hole system slot width and depth measurement method
CN104677234A (en) * 2015-03-16 2015-06-03 韶关学院 Length measuring device for cylindrical hole
CN106441031A (en) * 2016-10-20 2017-02-22 中核(天津)机械有限公司 Step hole depth measuring device
CN108050976A (en) * 2017-11-21 2018-05-18 中国航发沈阳发动机研究所 Detachably flexible contact measuring instrumentss

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5465054A (en) * 1977-11-02 1979-05-25 Hitachi Ltd Groove width measuring device
CN202329497U (en) * 2011-11-17 2012-07-11 天津欧波精密仪器股份有限公司 Deep hole testing tool
CN202442672U (en) * 2012-02-29 2012-09-19 扈玲 Deep hole internal step length measuring device
CN202836443U (en) * 2012-09-24 2013-03-27 周佼 Device for measuring length of stepped hole inside deep hole

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5465054A (en) * 1977-11-02 1979-05-25 Hitachi Ltd Groove width measuring device
CN202329497U (en) * 2011-11-17 2012-07-11 天津欧波精密仪器股份有限公司 Deep hole testing tool
CN202442672U (en) * 2012-02-29 2012-09-19 扈玲 Deep hole internal step length measuring device
CN202836443U (en) * 2012-09-24 2013-03-27 周佼 Device for measuring length of stepped hole inside deep hole

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
刁建民等: "测阶梯孔轴向尺寸检具", 《机械工人(冷加工)》 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104034229A (en) * 2013-03-08 2014-09-10 大进合紧固件(昆山)有限公司 Rapid and precise testing fixture of floating piston of steering power-assisted pump
CN104296629A (en) * 2014-10-11 2015-01-21 昆山名威精密工业有限公司 Taper empty avoiding type ejector sleeve inner hole length measuring device
CN104296629B (en) * 2014-10-11 2017-01-25 昆山名威精密工业有限公司 Taper empty avoiding type ejector sleeve inner hole length measuring device
CN104457511A (en) * 2014-11-27 2015-03-25 贵州虹祥轴承有限公司 Connecting shaft bearing inner hole diameter inspection device
CN104482831A (en) * 2014-12-15 2015-04-01 贵州红林机械有限公司 High-accuracy in-hole system slot width and depth measurement method
CN104482831B (en) * 2014-12-15 2017-04-12 贵州红林机械有限公司 High-accuracy in-hole system slot width and depth measurement method
CN104677234A (en) * 2015-03-16 2015-06-03 韶关学院 Length measuring device for cylindrical hole
CN104677234B (en) * 2015-03-16 2017-07-07 韶关学院 Cylindrical hole length-measuring appliance
CN106441031A (en) * 2016-10-20 2017-02-22 中核(天津)机械有限公司 Step hole depth measuring device
CN108050976A (en) * 2017-11-21 2018-05-18 中国航发沈阳发动机研究所 Detachably flexible contact measuring instrumentss

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Application publication date: 20130116

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