CN202709964U - Special measuring tool for non-entire round diameter - Google Patents

Special measuring tool for non-entire round diameter Download PDF

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Publication number
CN202709964U
CN202709964U CN 201220353093 CN201220353093U CN202709964U CN 202709964 U CN202709964 U CN 202709964U CN 201220353093 CN201220353093 CN 201220353093 CN 201220353093 U CN201220353093 U CN 201220353093U CN 202709964 U CN202709964 U CN 202709964U
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CN
China
Prior art keywords
vernier
jaw
measuring
screw
vernier caliper
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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 201220353093
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Chinese (zh)
Inventor
徐静
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Shaoxing University Yuanpei College
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Shaoxing University Yuanpei College
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Priority to CN 201220353093 priority Critical patent/CN202709964U/en
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Publication of CN202709964U publication Critical patent/CN202709964U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a special measuring tool for non-entire round diameter, belonging to the technical field of mechanical method-featured equipment for measuring non-entire round diameter and large diameter. The special measuring tool comprises a first vernier calliper and a second vernier calliper, wherein the first vernier calliper is vertically installed on the second vernier calliper, a first vernier scale, a first measuring jaw and a first screw are arranged on the first vernier calliper, and the first measuring jaw is movably installed on the first vernier calliper via a first jaw sleeve; and the second vernier calliper comprises a left vernier calliper and a right vernier calliper, a second vernier scale, a second measuring jaw and a second screw are arranged on the left vernier calliper, the second measuring jaw is movably installed on the second vernier calliper via a second jaw sleeve, a third vernier scale, a third measuring jaw and a third screw are arranged on the right vernier calliper, and the third measuring jaw is movably installed on the third vernier calliper via a third jaw sleeve. The special measuring tool for non-entire round diameter disclosed by the utility model is simple in structure, low in price, capable of measurement for an arch height H and a chord length S simultaneously, reliable in measurement data, and small in error.

Description

Non-full circle diameter special measuring tool
Technical field
The utility model relates to a kind of non-full circle diameter special measuring tool, and belonging to adopt mechanical means is that feature is measured non-full circle diameter and large diameter equipment technical field.
Background technology
Non-full circle diameter and large diameter measurement are the measurement difficult problems of big machinery part.For non-full circle diameter and large-diameter workpiece, general large-scale vernier caliper or milscale are difficult to realize measuring, and adopt some light, electric apparatus measures need to increase in the situation of measuring cost, and " bending high chord length method " is a kind of effective measuring method commonly used." bend high chord length method " and be respectively the high chord progress of the bow row of one section circular arc of measured circle is measured, try to achieve the method for measured circle diameter by both funtcional relationships.And adopt vernier caliper of the prior art, milscale or light, when electric instrument is measured, need to test one by one, so, inevitably can there be some uncertain factors in each test, this uncertainty makes between the physical size of the diameter test result that obtains and equipment and has larger error, this error is for main equipment, and especially the equipment of high-precision equipment and high pressure one class is easy to bring beyond thought loss and hidden danger.
Summary of the invention
The purpose of this utility model provides the special-purpose measuring device of a kind of non-full circle diameter cheap, simple in structure, easy to use, that can effectively measure non-full circle or major diameter mechanical component.
For achieving the above object, the utility model is achieved through the following technical solutions:
Non-full circle diameter special measuring tool, comprise the first vernier caliper and the second vernier caliper, the first vernier caliper is vertically mounted on a side of the second vernier caliper, be provided with the first vernier scale, the first measuring jaw and the first screw on the first vernier caliper, the first measuring jaw is movably arranged on the first vernier scale by the first pawl cover, the second vernier caliper can not affect moving up and down of the first measuring jaw, and the first screw is installed in the first pawl and puts; The second vernier caliper comprises left vernier caliper and right vernier caliper, be provided with the second vernier scale, the second measuring jaw and the second screw on the left vernier caliper, the second measuring jaw is movably arranged on the second vernier scale by the second pawl cover, the second screw is installed in the second pawl and puts, be provided with the 3rd vernier scale, the 3rd measuring jaw and the 3rd screw on the right vernier caliper, the 3rd measuring jaw is movably arranged on the 3rd vernier scale by the three-jaw cover, and the 3rd screw is installed in three-jaw and puts.
Principle of work of the present utility model is: during test, the first measuring jaw, the second measuring jaw and the 3rd measuring jaw are stuck on the detected sample, wherein the first vernier caliper is used for measuring non-full circle diameter and the high H of large diameter bow, and the H value is that the first pawl cover is stuck in the position on the first vernier scale; And the second vernier caliper and the 3rd vernier caliper are measured non-full circle diameter and large diameter chord length S together, and wherein, the S value is the reading sum of two horizontal verniers; According to " bending high chord length method ", can calculate non-full circle diameter or large diameter diameter value by H value and S value; Before dispatching from the factory and in the use procedure, all need its processing of returning to zero, by the adjustment of the first screw, the lower end that the first pawl is overlapped is positioned at the zero-bit on the first vernier scale, i.e. the first measuring jaw left surface and the second measuring jaw right flank snap, and both positions when concordant, bottom; Adjust the second screw and the 3rd screw, make the second pawl cover right side be positioned at the zero-bit of the second vernier scale, three-jaw cover left side is positioned at the zero-bit of the 3rd vernier scale, i.e. the position that is close to of the second measuring jaw, the 3rd measuring jaw corresponding surface.
In the utility model, the position when zero-bit refers to that the vernier scale scale is zero.
Compare with existing general measurer, the beneficial effects of the utility model are as follows:
(1) the non-full circle diameter of the utility model special measuring tool comprises the first vernier caliper and the second vernier caliper, and is simple in structure, is easy to make;
When (two) testing, use the non-full circle diameter of the utility model special measuring tool, the disposable high H of bow and the chord length S of measuring, then by calculating the diameter of non-full circle, measure easy, farthest reduced uncertain influence factor, data are reliable, can effectively solve non-full circle diameter and large diameter measurement problem.
Description of drawings
Fig. 1 is the structural representation of the non-full circle special measuring tool of the utility model.
Number in the figure: 1, the first vernier caliper; 11, the first measuring jaw; 12, the first pawl cover; 13, the first screw; 14, the first vernier scale; 2, the second vernier caliper; 21, left vernier caliper; 211, the second measuring jaw; 212, the second pawl cover; 213, the second screw; 214, the second vernier scale; 22, right vernier caliper; 221, the 3rd measuring jaw; 222, three-jaw cover; 223, the 3rd screw; 223, the 3rd vernier scale.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Such as Fig. 1, the non-full circle diameter of the utility model special measuring tool, comprise the first vernier caliper 1 and the second vernier caliper 2, the first vernier caliper 1 is vertically mounted on a side of the second vernier caliper 2, be provided with the first measuring jaw 11, the first screw 13 and the first vernier scale 14 on the first vernier caliper 1, the first measuring jaw 11 is movably arranged on the first vernier scale 14 by the first pawl cover 12, and the second vernier caliper 2 can not affect moving up and down of the first measuring jaw 11, and the first screw 13 is installed on the first pawl cover 12; The second vernier caliper 2 comprises left vernier caliper 21 and right vernier caliper 22, be provided with the second measuring jaw 211, the second screw 213 and the second vernier scale 214 on the left vernier caliper 21, the second measuring jaw 211 is movably arranged on the second vernier scale 214 by the second pawl cover 212, the second screw 213 is installed on the second pawl cover 212, be provided with the 3rd measuring jaw 221, the 3rd screw 223 and the 3rd vernier scale 224 on the right vernier caliper 22, the 3rd measuring jaw 221 is movably arranged on the 3rd vernier scale 224 by three-jaw cover 222, and the 3rd screw 223 is installed on the three-jaw cover 222.The first vernier caliper 1 is used for measuring non-full circle diameter and the high H of large diameter bow; Left vernier caliper 21, right vernier caliper 22 are used for measuring non-full circle diameter and large diameter chord length S, wherein, the position that the right side of the second pawl cover 212 is stuck on the second vernier scale 214 is the reading of the second vernier caliper 21, the position that the left side of three-jaw cover 222 is stuck on the 3rd vernier scale 224 is the reading of the 3rd vernier caliper 22, and the S value is left and right vernier caliper reading sum; According to " bending high chord length method ", can obtain non-full circle diameter or large diameter diameter value by H value and S value.
The non-full circle diameter of the utility model special measuring tool all needs its processing of returning to zero before dispatching from the factory and before each the use.By the adjustment of the first screw 13, make the first vernier caliper 1 be positioned at the standard zero-bit, i.e. the first measuring jaw 11 left surfaces and the 211 right flank snaps of the second measuring jaw, and both positions when concordant, bottom; Adjust the second screw 213 and the 3rd screw 223, make the second vernier scale 214, the 3rd vernier scale 224 be positioned at the standard zero-bit, be i.e. the position that is close to of the second measuring jaw 211, the 3rd measuring jaw 221 corresponding surfaces.

Claims (4)

1. non-full circle diameter special measuring tool, it is characterized in that: comprise the first vernier caliper and the second vernier caliper, the first vernier caliper is vertically mounted on the second vernier caliper one side, be provided with the first vernier scale, the first measuring jaw and the first screw on the first vernier caliper, the first measuring jaw is movably arranged on the first vernier scale by the first pawl cover; The second vernier caliper comprises left vernier caliper and right vernier caliper, be provided with the second vernier scale, the second measuring jaw and the second screw on the left vernier caliper, the second measuring jaw is movably arranged on the second vernier scale by the second pawl cover, be provided with the 3rd vernier scale, the 3rd measuring jaw and the 3rd screw on the right vernier caliper, the 3rd measuring jaw is movably arranged on the 3rd vernier scale by the three-jaw cover.
2. non-full circle diameter special measuring tool according to claim 1, it is characterized in that: described the first screw is installed in the first pawl and puts.
3. non-full circle diameter special measuring tool according to claim 1, it is characterized in that: described the second screw is installed in the second pawl and puts.
4. non-full circle diameter special measuring tool according to claim 1, it is characterized in that: described the 3rd screw is installed in three-jaw and puts.
CN 201220353093 2012-07-20 2012-07-20 Special measuring tool for non-entire round diameter Expired - Fee Related CN202709964U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220353093 CN202709964U (en) 2012-07-20 2012-07-20 Special measuring tool for non-entire round diameter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220353093 CN202709964U (en) 2012-07-20 2012-07-20 Special measuring tool for non-entire round diameter

Publications (1)

Publication Number Publication Date
CN202709964U true CN202709964U (en) 2013-01-30

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Application Number Title Priority Date Filing Date
CN 201220353093 Expired - Fee Related CN202709964U (en) 2012-07-20 2012-07-20 Special measuring tool for non-entire round diameter

Country Status (1)

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CN (1) CN202709964U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103884256A (en) * 2014-04-01 2014-06-25 涂振仲 Diameter measurement ruler
CN106705918A (en) * 2017-03-23 2017-05-24 上海威纳工程技术有限公司 Precise measurement instrument and method for internal and external diameters of large-diameter seal ring
CN106767635A (en) * 2016-12-28 2017-05-31 广州聚旭机电技术研究院有限公司 A kind of method for calibrating spring chi and its measurement tree-walk

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103884256A (en) * 2014-04-01 2014-06-25 涂振仲 Diameter measurement ruler
CN106767635A (en) * 2016-12-28 2017-05-31 广州聚旭机电技术研究院有限公司 A kind of method for calibrating spring chi and its measurement tree-walk
CN106705918A (en) * 2017-03-23 2017-05-24 上海威纳工程技术有限公司 Precise measurement instrument and method for internal and external diameters of large-diameter seal ring

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130130

Termination date: 20150720

EXPY Termination of patent right or utility model