CN101738152B - Improved measuring instrument for measuring wall thickness of hollow workpiece - Google Patents

Improved measuring instrument for measuring wall thickness of hollow workpiece Download PDF

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Publication number
CN101738152B
CN101738152B CN 200910258811 CN200910258811A CN101738152B CN 101738152 B CN101738152 B CN 101738152B CN 200910258811 CN200910258811 CN 200910258811 CN 200910258811 A CN200910258811 A CN 200910258811A CN 101738152 B CN101738152 B CN 101738152B
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China
Prior art keywords
measuring
watchcase
hollow workpiece
wall thickness
measurement bay
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CN 200910258811
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Chinese (zh)
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CN101738152A (en
Inventor
王进
孙静雅
姜龙网
徐大懋
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Wuxi Turbine Blade Co Ltd
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Wuxi Turbine Blade Co Ltd
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Abstract

The invention provides an improved measuring instrument for measuring the wall thickness of a hollow workpiece, which has a simple structure, convenient manufacture, convenient and practical operation and good practicality. During use, the measuring instrument is not affected by the width of a hollowing part of the hollow workpiece and restricted by the complex degree of an external structure, and has accurate measurement. The improved measuring instrument comprises an instrument shell, and is characterized in that: the instrument shell is provided with a lever-type measuring frame and a measuring rod; and a dial gauge and a measuring head are arranged on the lever-type measuring frame.

Description

A kind of measuring instrument that is used for measuring wall thickness of hollow workpiece of improvement
(1) technical field
The present invention relates to the surveying instrument technical field, be specially a kind of measuring instrument that is used for measuring wall thickness of hollow workpiece of improvement.
(2) background technology
The measurement of general workpiece mainly is to use vernier caliper, spiral dial gauge or thicknessmeter, and these instruments all block the hollow workpiece wall with its two card base when using, and reading is the wall thickness of hollow workpiece.But when the hollow workpiece cut-out was very narrow, the card base of vernier caliper, spiral dial gauge and diapsida thicknessmeter can not stretch into hollow workpiece, thereby can not measure; And when hollow workpiece external structure more complicated, need the surveying instrument card base to open the very large outer barrie structure of just walking around and go wall-thickness measurement, so existing surveying instrument can't reach the measurement requirement.
(3) summary of the invention
For the problems referred to above, the invention provides a kind of measuring instrument for measuring wall thickness of hollow workpiece, it is simple in structure, easy to make, practicality easy and simple to handle, versatility is good, can not be subject to the restriction of the complexity of the width impact of hollow workpiece cut-out and external structure during use, measure accurately.
Its technical scheme is such, and it comprises watchcase, it is characterized in that: lever measurement bay and sounding rod are installed on the described watchcase, on the described lever measurement bay dial gauge and measuring head are installed.
It is further characterized in that: described lever measurement bay is installed on described watchcase by straight pin; Described lever measurement bay front end is vertically installed with long table bar; Described dial gauge is installed on described long table bar upper end by folder spring and screw; It is inner that described measuring head is set in described long table bar; Be installed with pressure spring between described long table bar and the described measuring head; Described sounding rod is fixed on the described watchcase by the straight pin level; The described sounding rod front end amount of being equipped with ball center; Be provided with set screw on the described watchcase; Described set screw level is installed on described watchcase and holds out against described lever measurement bay.
A kind of measuring instrument for measuring wall thickness of hollow workpiece of the present invention, it is simple in structure, and it uses the impact that is not subjected to outer workpiece complex structure degree, and is easy to use, and measuring accuracy is high.
(4) description of drawings
Fig. 1 is a kind of measuring instrument structural representation for measuring wall thickness of hollow workpiece of the present invention.
(5) embodiment
See Fig. 1, the present invention includes watchcase 13, lever measurement bay 12 and sounding rod 7 are installed on the watchcase 13, dial gauge 1 and measuring head 6 are installed on the lever measurement bay 12.Lever measurement bay 12 is installed on watchcase 13 by straight pin 9; Lever measurement bay 12 front ends are vertically installed with long table bar 3; Dial gauge 1 is installed on long table bar 3 upper ends by folder spring 2 and screw 4; Long table bar 3 internal sleeve are equipped with pressure spring 5 and measuring head 6; Pressure spring 5 is installed between long table bar 3 and the measuring head 6; Sounding rod 7 is fixed on the watchcase 13 by straight pin 15 levels; The sounding rod 7 front end amount of being equipped with ball center 17; Be provided with set screw 8 on the watchcase 13; Set screw 8 levels are installed on watchcase 13 and hold out against lever measurement bay 12.Among Fig. 1,10 is pressure spring, and it is installed on watchcase 13,14 by straight pin 11 is cap, and 16 is screw.
When the present invention uses, at first adjust set screw 8, so that the amount ball center 17 of sounding rod 7 front ends is by the center line 18 of measuring head, then push down the handle portion of lever measurement bay 12, make lever measurement bay 12 around straight pin 9 rotations, thereby lift measuring head 6, again calibrated bolck is put between measuring head 6 and the sounding rod 7, unclamp the handle portion of lever measurement bay 12, dial gauge is returned to zero; Then, take off calibrated bolck, press the handle portion of lever measurement bay 12, make lever measurement bay 12 around straight pin 9 rotations, lift measuring head 6 sounding rod 7 is stretched into the hollow object cut-out, unclamp lever measurement bay 12 handles, read the reading of dial gauge, this value is the difference of actual value and theoretical value, theoretical value and dial gauge reading value is subtracted each other namely draw actual value.

Claims (3)

1. the measuring instrument that be used for to measure wall thickness of hollow workpiece of an improvement, it comprises watchcase, and lever measurement bay and sounding rod are installed on the described watchcase, it is characterized in that: on the described lever measurement bay dial gauge and measuring head are installed; Described lever measurement bay is installed on described watchcase by straight pin; Described lever measurement bay front end is vertically installed with long table bar; Described dial gauge is installed on described long table bar upper end by folder spring and screw; It is inner that described measuring head is set in described long table bar; Be installed with pressure spring between described long table bar and the described measuring head; Described sounding rod is fixed on the described watchcase by the straight pin level; The described sounding rod front end amount of being equipped with ball center.
2. the measuring instrument that be used for to measure wall thickness of hollow workpiece of described a kind of improvement according to claim 1 is characterized in that: be provided with set screw on the described watchcase.
3. the measuring instrument that be used for to measure wall thickness of hollow workpiece of described a kind of improvement according to claim 2, it is characterized in that: described set screw level is installed on described watchcase and holds out against described lever measurement bay.
CN 200910258811 2009-12-17 2009-12-17 Improved measuring instrument for measuring wall thickness of hollow workpiece Active CN101738152B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200910258811 CN101738152B (en) 2009-12-17 2009-12-17 Improved measuring instrument for measuring wall thickness of hollow workpiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200910258811 CN101738152B (en) 2009-12-17 2009-12-17 Improved measuring instrument for measuring wall thickness of hollow workpiece

Publications (2)

Publication Number Publication Date
CN101738152A CN101738152A (en) 2010-06-16
CN101738152B true CN101738152B (en) 2013-02-27

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102798324A (en) * 2011-05-27 2012-11-28 上海福耀客车玻璃有限公司 Device for measuring height of pin in mold
CN102829696A (en) * 2012-08-22 2012-12-19 江苏理士电池有限公司 Polar plate thickness measuring tool
CN103471480A (en) * 2013-09-05 2013-12-25 贵州安吉航空精密铸造有限责任公司 Device for measuring thickness of workpieces
CN105444713B (en) * 2014-08-29 2018-08-14 富泰华工业(深圳)有限公司 Measuring device
CN104748644A (en) * 2015-04-28 2015-07-01 中国商用飞机有限责任公司 Special measuring tool for measuring thickness of airplane horizontal tail ribbed thin-wall part
CN105091712B (en) * 2015-07-06 2018-04-06 河南机电职业学院 Digital car axle box Rib Thickness measuring instrument and its application method
CN108007313A (en) * 2017-11-08 2018-05-08 中国航发航空科技股份有限公司 A kind of portable aviation engine blade tenon cavity wall measurer for thickness
CN108253866A (en) * 2018-03-02 2018-07-06 核工业理化工程研究院 Measure the Three-coordinate measurer and its measuring method of thin wall special-shaped tube wave peak flat segments wall thickness

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB544518A (en) * 1941-01-02 1942-04-16 John William Todd Improvements in or relating to micrometer gauges
CN86204885U (en) * 1986-06-21 1987-09-16 钟建波 Dial gauge for central diameter of internal thread
US5454175A (en) * 1994-03-07 1995-10-03 Li; Kam K. Internal caliper

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB544518A (en) * 1941-01-02 1942-04-16 John William Todd Improvements in or relating to micrometer gauges
CN86204885U (en) * 1986-06-21 1987-09-16 钟建波 Dial gauge for central diameter of internal thread
US5454175A (en) * 1994-03-07 1995-10-03 Li; Kam K. Internal caliper

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Address after: 214174 Huishan Road, Huishan Economic Development Zone, Jiangsu, No. 1800, No.

Applicant after: Wuxi Turbine Blade Co., Ltd.

Address before: 214023 No. 305 Yang Qing Road, Jiangsu, Wuxi

Applicant before: Wuxi Turbine Blade Co., Ltd.

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