CN203216429U - Ultra deep hole diameter measuring instrument - Google Patents

Ultra deep hole diameter measuring instrument Download PDF

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Publication number
CN203216429U
CN203216429U CN 201320216995 CN201320216995U CN203216429U CN 203216429 U CN203216429 U CN 203216429U CN 201320216995 CN201320216995 CN 201320216995 CN 201320216995 U CN201320216995 U CN 201320216995U CN 203216429 U CN203216429 U CN 203216429U
Authority
CN
China
Prior art keywords
rod
sleeve
guide rod
spring
guide
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.)
Expired - Fee Related
Application number
CN 201320216995
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Chinese (zh)
Inventor
孙忠江
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.)
TIANJIN LILIN SCREW MACHINERY CO Ltd
Original Assignee
TIANJIN LILIN SCREW MACHINERY 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 TIANJIN LILIN SCREW MACHINERY CO Ltd filed Critical TIANJIN LILIN SCREW MACHINERY CO Ltd
Priority to CN 201320216995 priority Critical patent/CN203216429U/en
Application granted granted Critical
Publication of CN203216429U publication Critical patent/CN203216429U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to the technical field of the manufacture of a screw drilling tool and particularly relates to an ultra deep hole diameter measuring instrument comprising a pull rod sleeve, a measuring claw, a sliding rod, a pull spring, guide rods, a guide rod spring, a push rod, a measuring and adjusting nut and a digital dial indicator. One end of the sliding rod is hinged with the measuring claw, and the other end of the sliding rod is cooperated with the guide rods. The sliding rod slides along a 45-degree angle at one end of the pull rod sleeve. The push rod is placed in the pull rod sleeve. One end of the push rod is connected with the guide rods. The cross section of each of the guide rods is a conical shape. The other end of the push rod is hinged with a shaft. One end of the guide rod spring is in contact with the guide rods, and the other end of the guide rod spring is in contact with the pull rod sleeve. The digital dial indicator is placed at the end part of the pull rod sleeve, and a probe of the digital dial indicator is in contact with the pull rod. The ultra deep hole diameter measuring instrument has the advantages of simple structure and low cost, the accuracy of ultra deep hole diameter measurement and the efficiency of measurement are raised, and the manufacturing quality of a screw motor is raised.

Description

Superdeep holes mass runoff instrument
Technical field
The utility model relates to the manufacturing technology field of helicoid hydraulic motor, relates in particular to a kind of superdeep holes mass runoff instrument.
Background technology
In helicoid hydraulic motor production industry and deep hole high precision processing industry, deep hole and superdeep holes interior diameter accuracy tolerance do not have etalon and measuring method during less than 0.05mm.A difficult problem especially aspect the measurement of helicoid hydraulic motor diameter of stator bore, this is that its material is rubber because the diameter of stator bore of helicoid hydraulic motor is that big helical pitch is spiral yarn shaped, rubber hardness is HA70-74(Shao Shi), its surface is that protruding spiral fashion is flexible, should not accurately measure.
At present, hole measuring mainly adopts relative method, processes the disk that approaches with the diameter of stator bore size by turning, and this disk is connected a stock, stretches into stator inner hole, and finding out size is the measured value of diameter of stator bore close to the disk size of diameter of stator bore.Like this, be difficult to once measure the diameter of stator bore value, need repeat several times, the value of measuring just approaches value, and is accurate inadequately.
The utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and a kind of superdeep holes mass runoff instrument is provided, and is convenient to measure the size of diameter of stator bore.
The utility model for achieving the above object, by the following technical solutions:
A kind of superdeep holes mass runoff instrument, it is characterized in that: comprise rod outer sleeve, measuring claw, slide bar, extension spring, guide rod, guide rod spring, push rod, measurement adjustment nut and digital display centimeter, described slide bar one end and described measuring claw are hinged, the other end of described slide bar cooperates with described guide rod, and slide bar slides at an end upper edge of rod outer sleeve 45 degree; Described push rod places in the described rod outer sleeve, and an end of push rod is connected with described guide rod, and described guide rod is two, and it is conical that the cross section is; The described push rod other end and pin are hinged, and described measurement is adjusted nut and is connected with described pin; Described guide rod spring one end in contact guide rod, other end contact rod outer sleeve; Described digital display centimeter places the end of rod outer sleeve, an end in contact of the probe of digital display centimeter and pull bar.
Preferably, the length of described measuring claw is 200-300mm.
Preferably, the length of described support bar is 100-160mm.
Preferably, the width of described measuring claw is 15-30mm.
Preferably, described spring force is 5-7kgf.
Measure when adjusting nut to dial gauge one side shifting, guide rod is to the dial gauge side shifting, and measuring claw shrinks; Otherwise guide rod opens the measurement aperture with measuring claw under the elastic force of guide rod spring promotes.During measurement, with the gauge calibration of Φ 80 ± 0.005mm, digital display centimeter is shown the numerical value zero clearing earlier.Wheel measuring is adjusted nut, make ejector rob axis to away from the digital display centimeter side shifting, guide rod drives measuring claw and moves and open along 45 degree directions under the effect of guide rod spring force like this, at this moment, measuring claw moving axially and move radially the distance equate, and its value of moving axially is presented on the digital display centimeter, so just can calculate the diameter of measuring endoporus.
The beneficial effects of the utility model are: the utility model is simple in structure, and is cheap, improved precision that superdeep holes directly measures and the efficient of measurement, improved the workmanship of screw motor, solved the difficult problem of deep hole high precision processing.
Description of drawings
Fig. 1 is structural drawing of the present utility model;
Fig. 2 is the structural representation of check gauge;
Among the figure: 1, rod outer sleeve; 2, measuring claw; 3, slide bar; 4, extension spring; 5, guide rod; 6, guide rod spring; 7, push rod; 8, measure the adjustment nut; 9, digital display centimeter; 10, pin; 11, fender bracket; 12, check gauge.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment, as shown in the figure, a kind of superdeep holes mass runoff instrument, comprise rod outer sleeve 1, measuring claw 2, slide bar 3, extension spring 4, guide rod 5, guide rod spring 6, push rod 7, measure and adjust nut 8 and digital display centimeter 9, described slide bar 3 one ends and described measuring claw 2 are hinged, the other end of described slide bar 3 cooperates with described guide rod 5, and slide bar 3 slides at an end upper edge of rod outer sleeve 1 45 degree; Described push rod 7 places in the described rod outer sleeve 1, and an end of push rod 7 is connected with described guide rod 5, and described guide rod 5 is two, and it is conical that the cross section is; Described push rod 7 other ends and pin 10 are hinged, and described measurement is adjusted nut 8 and is connected with described pin 10, and described measurement is adjusted the hinged pin 10 of nut 8 drives and moved axially with push rod 7; Digital display centimeter 9 is fixed on the other end of rod outer sleeve, and the outside of digital display centimeter is provided with fender bracket 11.Described guide rod spring 6 one end in contact guide rods 5, other end contact rod outer sleeve 1; Described digital display centimeter places the end of rod outer sleeve, and an end in contact of the probe of digital display centimeter and pull bar can show the numerical value that moves axially of pull bar and guide rod.In the utility model, the length of described measuring claw is 200-300mm.The length of described support bar is 100-160mm.The width of described measuring claw is 15-30mm.Described spring force is 5-7kgf.
Measure when adjusting nut to dial gauge one side shifting, guide rod is to the dial gauge side shifting, and measuring claw shrinks; Otherwise guide rod opens the measurement aperture with measuring claw under the elastic force of guide rod spring promotes.During measurement, with check gauge 12 calibrations of Φ 80 ± 0.005mm, digital display centimeter is shown the numerical value zero clearing earlier.Wheel measuring is adjusted nut, make ejector rob axis to away from the digital display centimeter side shifting, guide rod drives measuring claw and moves and open along 45 degree directions under the effect of guide rod spring force like this, at this moment, measuring claw moving axially and move radially the distance equate, and its value of moving axially is presented on the digital display centimeter, so just can calculate the diameter of measuring endoporus.
The utility model is simple in structure, and is cheap, improved precision that superdeep holes directly measures and the efficient of measurement, improved the workmanship of screw motor, solved the difficult problem of deep hole high precision processing.

Claims (5)

1. a superdeep holes mass runoff instrument is characterized in that: comprise rod outer sleeve, measuring claw, slide bar, extension spring, guide rod, guide rod spring, push rod, measurement adjustment nut and digital display centimeter; Described slide bar one end and described measuring claw are hinged, and the other end of described slide bar cooperates with described guide rod, and slide bar slides at an end upper edge of rod outer sleeve 45 degree; Described push rod places in the described rod outer sleeve, and an end of push rod is connected with described guide rod, and described guide rod is two, and it is conical that the cross section is; The described push rod other end and pin are hinged, and described measurement is adjusted nut and is connected with described pin; Described guide rod spring one end in contact guide rod, other end contact rod outer sleeve; Described digital display centimeter places the end of rod outer sleeve, an end in contact of the probe of digital display centimeter and pull bar.
2. superdeep holes mass runoff instrument according to claim 1, it is characterized in that: the length of described measuring claw is 200-300mm.
3. superdeep holes mass runoff instrument according to claim 1 and 2, it is characterized in that: the length of described support bar is 100-160mm.
4. superdeep holes mass runoff instrument according to claim 3, it is characterized in that: the width of described measuring claw is 15-30mm.
5. superdeep holes mass runoff instrument according to claim 4, it is characterized in that: described spring force is 5-7kgf.
CN 201320216995 2013-04-26 2013-04-26 Ultra deep hole diameter measuring instrument Expired - Fee Related CN203216429U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320216995 CN203216429U (en) 2013-04-26 2013-04-26 Ultra deep hole diameter measuring instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320216995 CN203216429U (en) 2013-04-26 2013-04-26 Ultra deep hole diameter measuring instrument

Publications (1)

Publication Number Publication Date
CN203216429U true CN203216429U (en) 2013-09-25

Family

ID=49205956

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320216995 Expired - Fee Related CN203216429U (en) 2013-04-26 2013-04-26 Ultra deep hole diameter measuring instrument

Country Status (1)

Country Link
CN (1) CN203216429U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103575186A (en) * 2013-10-24 2014-02-12 贵州航天红光机械制造有限公司 Method for measuring inner diameter of stepped hole
CN106352771A (en) * 2016-09-28 2017-01-25 哈尔滨建成集团有限公司 Oval inner diameter measuring device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103575186A (en) * 2013-10-24 2014-02-12 贵州航天红光机械制造有限公司 Method for measuring inner diameter of stepped hole
CN106352771A (en) * 2016-09-28 2017-01-25 哈尔滨建成集团有限公司 Oval inner diameter measuring device
CN106352771B (en) * 2016-09-28 2019-03-08 哈尔滨建成集团有限公司 A kind of oval inner diameter measuring device

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130925

Termination date: 20160426