CN103542787A - Center hole measuring tool - Google Patents

Center hole measuring tool Download PDF

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Publication number
CN103542787A
CN103542787A CN201310518713.2A CN201310518713A CN103542787A CN 103542787 A CN103542787 A CN 103542787A CN 201310518713 A CN201310518713 A CN 201310518713A CN 103542787 A CN103542787 A CN 103542787A
Authority
CN
China
Prior art keywords
measuring tool
center hole
dial indicator
support
hole measuring
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201310518713.2A
Other languages
Chinese (zh)
Inventor
刘春花
李峥安
宁玉兰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HUNAN NANFANG AVIATION INDUSTRY CO LTD
Original Assignee
HUNAN NANFANG AVIATION INDUSTRY CO LTD
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 HUNAN NANFANG AVIATION INDUSTRY CO LTD filed Critical HUNAN NANFANG AVIATION INDUSTRY CO LTD
Priority to CN201310518713.2A priority Critical patent/CN103542787A/en
Publication of CN103542787A publication Critical patent/CN103542787A/en
Pending legal-status Critical Current

Links

Abstract

The invention relates to a center hole measuring tool which comprises a support and a dial indicator. The center hole measuring tool is characterized in that a header of the dial indicator is in threaded connected with a measuring bar, wherein the other end of the measuring bar is in threaded connection with a spherical probe; an elastic sleeve is arranged in a mounting hole of the support, and the header of the dial indicator is inserted into the elastic sleeve and fastened to the support through a tightening screw. The center hole measuring tool is simple in structure, easy to manufacture and low in cost; whether a taper hole of a part is qualified can be judged directly according to the indicated value of the dial indicator as long as the spherical probe is arranged in the taper hole of the part, so that detection accuracy and repeatability are high, and detection efficiency and precision are improved; center holes with different specifications can be detected as long as corresponding spherical probes are mounted to replace the spherical probe, so that the center hole measuring tool is high in economical efficiency.

Description

A kind of center pit is measured measurer
Technical field
The present invention relates to a kind of measurer, be specifically related to a kind of center pit and measure measurer.
Background technology
At mechanical processing industry, need the product of centering to be seen everywhere, particularly axial workpiece.Center pit is the important benchmark of axial workpiece, and car, cylindrical grinding are all located by center pit, and the degree of depth of center pit and tapering are to guarantee centering accurately, is also to guarantee that top tip and workpiece can not collided again and the important parameter of part post-production quality.Adopt aperture and the depth of center hole size of slide calliper rule amount center pit simple and convenient, but the measurement of this method is time-consuming, precision is low, poor repeatability, the crudy of part is unstable.
Summary of the invention
The object of the invention is to overcome the shortcoming of above-mentioned technology, a kind of simple in structure, low cost of manufacture, easy to use is provided, high, the reproducible center pit of measuring accuracy is measured measurer.
Center pit of the present invention is measured measurer, comprises bearing and dial gauge, it is characterized in that: the sounding rod that has been threaded in the gauge outfit of described dial gauge, and the other end of sounding rod is connected with spheric probe; In the mounting hole of described bearing, be built-in with resilient sleeve, the gauge outfit of dial gauge is inserted in resilient sleeve, by clamp-screw, is fixed tightly on bearing.
In order better to realize above-mentioned purpose:
Described sounding rod with spheric probe by being threaded.
Center pit of the present invention is measured measurer, and expense simple in structure, easy to manufacture is low, only spheric probe need be placed in to the bellmouth of part, according to the indicated value of dial gauge, just can directly judge that whether part bellmouth is qualified, detection accuracy and reproducible, has improved detection efficiency and precision; Center pit for different size only need be changed corresponding spheric probe, good economy performance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is embodiments of the invention schematic diagram.
In figure: 1, bearing, 2, resilient sleeve, 3, dial gauge, 4, gauge outfit, 5, clamp-screw, 6, sounding rod, 7, spheric probe, 8, part.
Embodiment
Center pit of the present invention is measured measurer, comprises bearing 1 and dial gauge 3.The sounding rod 6 that has been threaded in the gauge outfit 4 of dial gauge 3, the other end of sounding rod 6 spheric probe 7 that has been threaded.In the mounting hole of bearing 1, be built-in with resilient sleeve 2, the gauge outfit 4 of dial gauge 3 is inserted in resilient sleeve 2, by clamp-screw 5, is fixed tightly on bearing 1.
During use, the spheric probe of measurer 7 is placed in to the bellmouth of part 8, according to the reading of dial gauge 3, just can judges that whether the bellmouth of part 8 is qualified.For the bellmouth of different size, only need to change corresponding spheric probe 7.

Claims (2)

1. center pit is measured a measurer, comprises bearing (1) and dial gauge (3), it is characterized in that: the sounding rod (6) that has been threaded in the gauge outfit (4) of described dial gauge (3), and the other end of sounding rod (6) is connected with spheric probe (7); In the mounting hole of described bearing (1), be built-in with resilient sleeve (2), the gauge outfit (4) of dial gauge (3) is inserted in resilient sleeve (2), by clamp-screw (5), is fixed tightly on bearing (1).
2. center pit according to claim 1 is measured measurer, it is characterized in that: described sounding rod (6) with spheric probe (7) by being threaded.
CN201310518713.2A 2013-10-29 2013-10-29 Center hole measuring tool Pending CN103542787A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310518713.2A CN103542787A (en) 2013-10-29 2013-10-29 Center hole measuring tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310518713.2A CN103542787A (en) 2013-10-29 2013-10-29 Center hole measuring tool

Publications (1)

Publication Number Publication Date
CN103542787A true CN103542787A (en) 2014-01-29

Family

ID=49966484

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310518713.2A Pending CN103542787A (en) 2013-10-29 2013-10-29 Center hole measuring tool

Country Status (1)

Country Link
CN (1) CN103542787A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110332874A (en) * 2019-08-15 2019-10-15 柳州科路测量仪器有限责任公司 Shaft coupling height measuring rule

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58123414A (en) * 1982-01-19 1983-07-22 Mitsubishi Heavy Ind Ltd Method for measuring machining hole and correcting tool
CN2835943Y (en) * 2005-10-27 2006-11-08 江苏太平洋精密锻造有限公司 Measurer for measuring internal hole chamfer dimension
CN201335671Y (en) * 2009-01-21 2009-10-28 重庆江增机械有限公司 Mmeasurement device of depth of bore groove
CN201476748U (en) * 2009-07-16 2010-05-19 江苏罡阳动力转向器厂 Measuring tool for quickly measuring slot and hole depth processing precision of workpieces in batches
CN101975538A (en) * 2010-09-01 2011-02-16 芜湖佳先传动轴有限公司 Central hole detector of constant velocity cardan joint drive shaft assembly
CN203561312U (en) * 2013-10-29 2014-04-23 湖南南方宇航工业有限公司 Center hole measuring tool

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58123414A (en) * 1982-01-19 1983-07-22 Mitsubishi Heavy Ind Ltd Method for measuring machining hole and correcting tool
CN2835943Y (en) * 2005-10-27 2006-11-08 江苏太平洋精密锻造有限公司 Measurer for measuring internal hole chamfer dimension
CN201335671Y (en) * 2009-01-21 2009-10-28 重庆江增机械有限公司 Mmeasurement device of depth of bore groove
CN201476748U (en) * 2009-07-16 2010-05-19 江苏罡阳动力转向器厂 Measuring tool for quickly measuring slot and hole depth processing precision of workpieces in batches
CN101975538A (en) * 2010-09-01 2011-02-16 芜湖佳先传动轴有限公司 Central hole detector of constant velocity cardan joint drive shaft assembly
CN203561312U (en) * 2013-10-29 2014-04-23 湖南南方宇航工业有限公司 Center hole measuring tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110332874A (en) * 2019-08-15 2019-10-15 柳州科路测量仪器有限责任公司 Shaft coupling height measuring rule

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C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20140129