CN112097601A - Aperture size measuring device and measuring method - Google Patents
Aperture size measuring device and measuring method Download PDFInfo
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- CN112097601A CN112097601A CN201910528339.1A CN201910528339A CN112097601A CN 112097601 A CN112097601 A CN 112097601A CN 201910528339 A CN201910528339 A CN 201910528339A CN 112097601 A CN112097601 A CN 112097601A
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- measuring
- aperture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
- G01B5/12—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters internal diameters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention provides a measuring tool and a measuring method for measuring aperture size, which are used for measuring the aperture size. The method is based on the aperture of the measured hole
(D is the diameter, a is the deviation on the aperture, b is the deviation under the aperture), divide the tolerance of waiting to measure the hole into n partition according to the measurement requirement, make n measuring blocks to install measuring block on the measuring stick, during the use fill in the measuring tool in the measuring hole of waiting to measure the part, according to the number of filling in measuring block, can convenient, swift calculate the aperture, accomplish and measure. The measurement accuracy of the measurement method is determined according to actual measurement requirements, the larger the equal division n of the tolerance zone division is, the higher the measurement accuracy is, the smaller the equal division n of the tolerance zone division is, the lower the measurement accuracy is, and the measurement accuracy is
. The measuring method is simple, convenient and accurate in measuring the apertureAnd the measuring tool in the measuring method has a series of advantages of simple structure, convenient installation and use, strong practicability, easy popularization and the like.
Description
Technical Field
The invention belongs to the field of machining, and particularly relates to the technical field of machining measurement.
Background
The pore diameter measurement is the main content of the length metering technology, and for the measurement of the diameter of the pore, there are measurement methods such as direct measurement, indirect measurement and comprehensive measurement. The direct measurement is a method for directly measuring the aperture by utilizing two-point or three-point positioning, and is also the most common aperture measurement method, and according to the precision grade size and the quantity of the measured aperture, a general length measurement tool capable of measuring the aperture can be adopted, such as a vernier caliper, a universal comparator and the like; special aperture measuring tools, such as an inside micrometer, an inside dial indicator, a micrometer, and the like, can also be adopted. Indirect measurement is a method of measuring a function related to the aperture and then converting the aperture size. The comprehensive measurement is to use a smooth plug gauge to check whether the workpiece is qualified or not by a pass-stop method.
Aiming at the requirement of large-batch measurement with extremely large aperture, the conventional measurement method has the problems of relatively complex operation process, easy error in measurement and the like, and the measurement requirement is difficult to meet. Therefore, it is a technical problem to be solved in the art to design a measuring method capable of simply, conveniently, quickly and accurately measuring the size of the aperture.
Disclosure of Invention
Aiming at the defects of large-batch measurement technology with extremely large apertures, the invention designs and develops a measuring method capable of simply, conveniently, quickly and accurately measuring the aperture size, and has a series of advantages of simple structure, convenience in installation and use, strong practicability, easiness in popularization and the like.
The technical scheme of the invention is as follows:
a hole diameter size measuring device comprises measuring blocks and a measuring rod, wherein a handle is arranged at the rear part of the measuring rod, threads are arranged in the middle of the measuring rod, and at least three measuring blocks are fixed on the measuring rod through the threads; the outer diameters of the measuring blocks are distributed according to the tolerance step of the measured aperture and are sequentially increased from the front end to the back end.
The outer diameters of the measuring blocks are distributed according to the tolerance equal difference of the measured aperture.
The arc outside the measuring block is provided with a notch, so that the measuring block can be conveniently installed and fixed on the measuring rod.
The measuring block of the application is a hole measured according to a part
The tolerance of the measured hole is divided into n equal parts according to the measurement precision to form the dimension of
,
，
···
,
N measurement blocks.
On the other hand, the method for measuring the aperture size comprises the following steps:
first, inAccording to the measured hole of the part
The size of the hole to be measured and the precision grade requirement of the hole to be measured are divided into n equal parts according to the measurement precision;
is prepared in the size of
,
，
···
,
N measurement blocks;
mounting the measuring blocks on the measuring rod from big to small;
sequentially placing the measuring blocks into the holes to be measured until the measuring blocks cannot be placed into the holes to be measured;
obtaining the number k of the measuring blocks plugged into the measured holes;
the pore diameter is calculated as D-b + (k-1) (a-b)/n.
The tolerance of the measured hole is divided into at least three equal parts.
The measuring rod is a handheld measuring rod with threads for fixing the sequence measuring blocks, the measuring rod and the measuring blocks are connected and fastened by the threads, the measuring rod can fix different numbers of measuring blocks to meet the requirements of measuring holes with different hole diameter precision, and measuring blocks with other hole diameter sizes can be installed to measure holes with other hole diameter sizes.
Compared with the prior art, the invention has the following beneficial effects:
the invention has a series of advantages of simple structure, convenient installation and use, quick disassembly, easy popularization, strong universality and practicability and the like, and the application of the measuring method can improve the measuring efficiency of the large-batch aperture on the premise of ensuring the measuring requirement.
Drawings
FIG. 1 is a schematic view of a gauge.
Fig. 2 is a schematic view of a measurement block.
Fig. 3 is a schematic view of a measuring rod.
Fig. 4 is a schematic measurement diagram.
Detailed Description
The invention will be further explained with reference to the drawings.
Example 1
The invention relates to a hole diameter size measuring device which comprises measuring blocks 1 and a measuring rod 2, wherein a handle 3 is arranged at the rear part of the measuring rod 2, threads are arranged in the middle of the measuring rod 2, and at least three measuring blocks 1 are fixed on the measuring rod through the threads; the outer diameters of the measuring blocks are distributed in a stepped mode according to the tolerance of the aperture of the measured hole 4, and the outer diameters of the measuring blocks are sequentially increased from the front end to the back end.
The outer diameters of the measuring blocks are distributed according to the tolerance equal difference of the measured aperture.
Example 1
The invention relates to a hole diameter size measuring device which comprises measuring blocks 1 and a measuring rod 2, wherein a handle 3 is arranged at the rear part of the measuring rod 2, threads are arranged in the middle of the measuring rod 2, and at least three measuring blocks 1 are fixed on the measuring rod through the threads; the outer diameters of the measuring blocks are distributed according to the tolerance step of the measured aperture and are sequentially increased from the front end to the back end. The arc outside the measuring block 1 is provided with a notch, the measuring block 1 is convenient to install and fix on the measuring rod 2 through the notch provided with the arc, abrasion to the measuring block 1 is reduced, and precision is guaranteed.
Example 3
The invention relates to a method for measuring the aperture size, which firstly measures the aperture size of a measured hole 4 of a part
The size of the hole 4 to be measured and the accuracy requirement of the hole to be measured, dividing the tolerance of the hole to be measured into n equal parts according to the measurement accuracy, and preparing the size of the hole to be measured into
,
，
···
,
The n measuring blocks are finally installed on the measuring rod in sequence, when the measuring rod is used, the measuring tool is only required to be placed in a hole of the part to be measured, the measuring block which is just matched with the measured hole is found, and the size of the measured hole can be known.
The measuring block 1 and the measuring rod 2 which can be provided with various size measuring blocks can be assembled on the measuring rod through threaded connection for measuring the measured hole with the corresponding aperture size of the measuring block 2.
The measuring block 1 is a hole measured according to a part
The tolerance of the measured hole is divided into n equal parts according to the measurement precision, and the size is equal to
,
，
···
,
N measurement blocks.
In the present embodiment, n is 3 or more.
The measuring rod 2 is a handheld measuring rod with threads for fixing the measuring blocks, the connecting of the measuring rod and the measuring blocks is fastened by threaded connection, the measuring rod can fix different numbers of measuring blocks to meet the requirements of measuring different aperture precisions, and measuring blocks with other aperture sizes can be installed to measure holes with other aperture sizes.
Claims (5)
1. The device for measuring the aperture size is characterized by comprising measuring blocks and measuring rods, wherein a handle is arranged at the rear part of each measuring rod, threads are arranged in the middle of each measuring rod, and at least three measuring blocks are fixed on the measuring rods through the threads; the outer diameters of the measuring blocks are distributed according to the tolerance step of the measured aperture and are sequentially increased from the front end to the back end.
2. An aperture size measuring device according to claim 1, wherein the outside diameter of the measuring block is distributed with the tolerance of the measured aperture.
3. The aperture size measuring device of claim 1, wherein the outer arc of the measuring block is provided with a notch.
4. A method for measuring the aperture size comprises the following steps:
s1 measuring holes according to parts
The size of the hole to be measured and the precision grade requirement of the hole to be measured are divided into n equal parts according to the measurement precision;
s2 preparation of a size of
,
，
···
,
N measurement blocks;
s3, mounting the measuring blocks on the measuring rod in a descending order;
s4, sequentially placing the measuring blocks into the holes to be measured until the measuring blocks cannot be placed into the holes to be measured;
s5, the number k of the measuring blocks inserted into the measured holes;
s6 calculates the pore diameter D-b + (k-1) (a-b)/n.
5. An aperture size measuring method according to claim 1, wherein the tolerance of the measured aperture is divided into at least three equal parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910528339.1A CN112097601A (en) | 2019-06-18 | 2019-06-18 | Aperture size measuring device and measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910528339.1A CN112097601A (en) | 2019-06-18 | 2019-06-18 | Aperture size measuring device and measuring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112097601A true CN112097601A (en) | 2020-12-18 |
Family
ID=73748929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910528339.1A Pending CN112097601A (en) | 2019-06-18 | 2019-06-18 | Aperture size measuring device and measuring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112097601A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201476744U (en) * | 2009-08-03 | 2010-05-19 | 秦山核电有限公司 | Reactor core barrel flange surface through hole aperture precision measuring device |
| CN201680788U (en) * | 2010-04-16 | 2010-12-22 | 深南电路有限公司 | Plug gauge |
| CN203432506U (en) * | 2013-08-15 | 2014-02-12 | 株洲南方燃气轮机成套制造安装有限公司 | Gauge for measuring inner hole of part |
| CN203687835U (en) * | 2014-02-14 | 2014-07-02 | 山东太古飞机工程有限公司 | Rivet aperture checking gauge |
| CN204438976U (en) * | 2014-11-20 | 2015-07-01 | 中国航空工业第六一八研究所 | A kind of rubber seal inspection frock |
| CN104976940A (en) * | 2014-04-11 | 2015-10-14 | 上海启发电子科技有限公司 | Detection tool for detecting internal diameter of circular ting type work piece |
| CN105300244A (en) * | 2015-09-17 | 2016-02-03 | 北汽福田汽车股份有限公司 | Hose inner diameter measuring instrument |
| CN105716493A (en) * | 2016-02-18 | 2016-06-29 | 苏州莱测检测科技有限公司 | Integrated needle gauge |
| CN205679172U (en) * | 2016-06-12 | 2016-11-09 | 四川长虹技佳精工有限公司 | Pore Diameter Detection plug |
| CN205785000U (en) * | 2016-06-22 | 2016-12-07 | 依波精品（深圳）有限公司 | A kind of waterproof apron measuring device |
| CN206037899U (en) * | 2016-09-29 | 2017-03-22 | 安徽艾贤磁体器件科技有限公司 | Bonding magnetic ring detects and advises with ladder PIN |
-
2019
- 2019-06-18 CN CN201910528339.1A patent/CN112097601A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201476744U (en) * | 2009-08-03 | 2010-05-19 | 秦山核电有限公司 | Reactor core barrel flange surface through hole aperture precision measuring device |
| CN201680788U (en) * | 2010-04-16 | 2010-12-22 | 深南电路有限公司 | Plug gauge |
| CN203432506U (en) * | 2013-08-15 | 2014-02-12 | 株洲南方燃气轮机成套制造安装有限公司 | Gauge for measuring inner hole of part |
| CN203687835U (en) * | 2014-02-14 | 2014-07-02 | 山东太古飞机工程有限公司 | Rivet aperture checking gauge |
| CN104976940A (en) * | 2014-04-11 | 2015-10-14 | 上海启发电子科技有限公司 | Detection tool for detecting internal diameter of circular ting type work piece |
| CN204438976U (en) * | 2014-11-20 | 2015-07-01 | 中国航空工业第六一八研究所 | A kind of rubber seal inspection frock |
| CN105300244A (en) * | 2015-09-17 | 2016-02-03 | 北汽福田汽车股份有限公司 | Hose inner diameter measuring instrument |
| CN105716493A (en) * | 2016-02-18 | 2016-06-29 | 苏州莱测检测科技有限公司 | Integrated needle gauge |
| CN205679172U (en) * | 2016-06-12 | 2016-11-09 | 四川长虹技佳精工有限公司 | Pore Diameter Detection plug |
| CN205785000U (en) * | 2016-06-22 | 2016-12-07 | 依波精品（深圳）有限公司 | A kind of waterproof apron measuring device |
| CN206037899U (en) * | 2016-09-29 | 2017-03-22 | 安徽艾贤磁体器件科技有限公司 | Bonding magnetic ring detects and advises with ladder PIN |
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Application publication date: 20201218 |
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| RJ01 | Rejection of invention patent application after publication |