CN110823159A - Combined inner diameter measuring device and method - Google Patents
Combined inner diameter measuring device and method Download PDFInfo
- Publication number
- CN110823159A CN110823159A CN201911070023.9A CN201911070023A CN110823159A CN 110823159 A CN110823159 A CN 110823159A CN 201911070023 A CN201911070023 A CN 201911070023A CN 110823159 A CN110823159 A CN 110823159A
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- Prior art keywords
- lever
- measuring rod
- contact
- hole
- spring
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/10—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
- G01B21/14—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters internal diameters
Abstract
The invention has involved a combined internal diameter measuring device and method, the apparatus includes the straight board, support, sliding measuring bar, lever, rotating matrix, reading meter with rectangular hole in the middle, one end of the straight board is fitted with two spacer pins, rotate the matrix to fix on straight board upper portion, there are square grooves and through holes communicated with it in the vertical direction, the lever is connected to rotating the matrix and can rotate around the rotating shaft, the upper portion is placed in the square groove, the inferior part crosses from rectangular hole of the straight board; the reading meter passes through a through hole of the rotating base body to be in contact with the lever flat contact, the support is fixed on the lower portion of the straight plate through a bolt, a through hole is formed in the lower portion of the support, a bushing is arranged in the through hole, and the sliding measuring rod slides in the bushing. The method realizes the outward moving transfer measurement of the inner diameter size of some closed-up type parts, combines the straight rod measurement with the lever, has high measurement accuracy and high speed, simultaneously eliminates the human interference, has simple and easy operation in the measurement process and low detection cost, and can effectively improve the production rate.
Description
Technical Field
The invention belongs to the technical field of measurement of machining parts, and particularly relates to a combined inner diameter measuring device and method.
Background
The inner diameter size measurement usually adopts a measuring rod contact to enter a measurement part, the measuring rod contact is contacted with a measured point under the action of spring force, the size deviation is transmitted to a rear reading meter to read deviation data, however, under the condition that the measurement part is deeper or can not be directly measured, the lever transmission mode is generally adopted for measurement, the contact at the lower part of a lever is inserted into the inner diameter measurement part, the reading meter reads the deviation data at the other end of the lever, when some closed inner diameter sizes are met, namely the measured diameter or radius is positioned in an inner space, the measured diameter or radius enters the inner space and needs to pass through a small round opening, a measuring rod mechanism with a meter cannot enter due to too large volume, and the diameter of the part cannot be directly measured due to the fact that the inlet diameter and the measured diameter have larger difference and the contact with the measurement part.
Therefore, there is a need for an inner diameter measuring device that solves the problems of the prior art.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a combined inner diameter measuring device and a combined inner diameter measuring method, wherein a straight rod measuring mechanism and a lever transmission mechanism are matched with each other, so that the measuring speed is high, the accuracy is high, the measuring process is simple and easy to operate, the detection cost is low, and the production rate is effectively improved on the basis of not influencing the smoothness of data transmission and the reliability of the whole mechanism.
The invention is realized by adopting the following technical scheme:
a combined internal diameter measuring device comprises a straight plate, a support, a sliding measuring rod, a lever, a rotating base body and a reading meter, wherein the middle of the straight plate is provided with a rectangular hole; the reading meter penetrates through a through hole of the rotating base body to be in contact with a flat contact of the lever, the support is fixed to the lower portion of the straight plate through a bolt, a through hole is formed in the lower portion of the support, a bushing is arranged in the through hole, the sliding measuring rod slides in the bushing, a first spring is installed on a shaft shoulder at the tail end of the sliding measuring rod, one end of the first spring is locked and limited through a screw cap, and the tail portion of the sliding measuring rod is in contact with.
The straight plate is T-shaped.
The limiting pin is arranged at two T-shaped ends of the straight plate.
The side surface of the rotating base body is provided with a threaded hole, and a screw penetrates through the threaded hole to fix the reading meter.
And a second spring is arranged on the side of the reading meter close to the flat contact.
The lever is bent at 90 °.
A baffle is fixed on the rotating base body through a screw, and the stroke of the lever is limited.
The length of the sliding measuring rod can be designed according to the actual condition of the measured piece.
The measuring method of the combined inner diameter measuring device specifically comprises the following steps:
the method comprises the following steps: before measurement, the reading meter is zero: before measurement, a ball contact of a lever is contacted with the tail end of a sliding measuring rod under the action of a spring II, the sliding measuring rod is in a forward trend under the action of the spring I, the sliding measuring rod is inserted into the upper part of a standard size part, a straight plate is placed on the upper plane of the standard size part, the straight plate is pushed on the upper plane of the standard size part along the radial direction, two limiting pins are ensured to be contacted with a spigot of the standard size part, at the moment, the spherical surface at the top end of the sliding measuring rod is contacted with the diameter surface of the standard size part, the contact state is kept under the compression of the spring II, the ball contact on the lever is contacted with the tail end surface of the sliding measuring rod, the contact state is kept under the compression state of the spring I, the flat contact of the lever is contacted with a reading meter contact, and;
step two: and (3) measuring the radius deviation of the measured piece: and measuring the measured piece according to the method in the step one, reading the radius deviation data by a pressure-driven reading meter, rotating the device for one circle according to the method, and calculating the diameter deviation according to the measured radius deviation data.
The invention has the beneficial effects that: according to the invention, the sliding measuring rod is not directly provided with a reading meter, but a 90-degree lever is adopted to transmit the numerical value deviation in the horizontal direction in the measured part to the external reading meter for reading, and meanwhile, a mode of positioning two limiting pins at a seam allowance is adopted, so that the radius deviation of one point on the measured surface can be conveniently and accurately read, the diameter deviation is calculated, the outward moving transfer measurement of the inner diameter size of some closed-up parts is realized, the mode of combining straight rod measurement and lever is characterized by high measurement accuracy and high speed, meanwhile, the artificial interference is eliminated, the measurement process is simple and easy to operate, the detection cost is low, and the production rate can be effectively improved.
Drawings
FIG. 1 is a front view of a modular inner diameter measuring device of the present invention;
FIG. 2 is a top view of a modular inner diameter measurement device according to the present invention;
wherein the content of the first and second substances,
the device comprises a straight plate 1, a limiting pin 2, a support 3, a sliding measuring rod 4, a bushing 5, a screw cap 6, a spring I7, a ball contact 8, a lever 9, a baffle 10, a flat contact 11, a spring II 12, a rotating base 13, a rotating shaft 15 reading meter 14 and a measured piece 16.
Detailed Description
For better understanding of the present invention, the technical solutions and effects of the present invention will be described in detail by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1-2, a combined internal diameter measuring device comprises a straight plate 1 with a rectangular hole in the middle, a support 3, a sliding measuring rod 4, a lever 9 bent at 90 degrees, a rotating base 13 and a reading meter 15, wherein the straight plate 1 is in a T shape, two limiting pins 2 are arranged at two ends of the T shape, the rotating base 13 is fixed on the upper part of the straight plate 1 through bolts and is provided with a square groove and a through hole communicated with the square groove in the vertical direction, the lever 9 is connected on the rotating base 13 and can rotate around a rotating shaft 14, the upper part is placed in the square groove, and the lower part passes through the rectangular hole of the straight plate 1; the reading meter 15 passes through a through hole of the rotating base body 13 to be in contact with the flat contact 11 of the lever 9, a threaded hole is formed in the side face of the rotating base body 13, a screw passes through the threaded hole to fix the reading meter 15, a second spring 12 is installed on the side, close to the flat contact 11, of the reading meter 15, a baffle plate 10 is fixed on the rotating base body 13 through the screw to limit the movement of the lever 9; the support 3 is fixed on the lower portion of the straight plate 1 through a bolt, a through hole is formed in the lower portion of the support 3, a bushing 5 is arranged in the through hole, the sliding measuring rod 4 slides in the bushing 5, a first spring 7 is installed on a shaft shoulder at the tail end of the sliding measuring rod 4, the end portion of the first spring 7 is locked and limited through a screw cap 6, and the tail portion of the sliding measuring rod 4 is in contact with a ball contact 8 of a lever 9.
The length of the sliding measuring rod 4 can be designed according to the actual situation of the measured piece 16.
The measuring method of the combined inner diameter measuring device specifically comprises the following steps:
the method comprises the following steps: before measurement, reading table 15 is zero: before measurement, a ball contact 8 of a lever 9 is contacted with the tail end of a sliding measuring rod 4 under the action of a spring II 12, the sliding measuring rod 4 is in a forward trend under the action of a spring I7, the sliding measuring rod 4 is inserted into the upper part of a standard size part, a straight plate 1 is placed on the upper plane of the standard size part, the straight plate 1 is pushed on the upper plane of the standard size part along the radial direction, two limiting pins 2 are ensured to be contacted with rabbets of the standard size part, at the moment, the spherical surface at the top end of the sliding measuring rod 4 is contacted with the diameter surface of the standard size part, the contact state is kept under the compression of the spring II 12, the ball contact 8 on the lever 9 is contacted with the tail end surface of the sliding measuring rod 4, the contact state is kept under the compression of the spring I7, a flat contact 11 of the lever 9 is contacted with a contact of a reading meter 15, and;
step two: the radius deviation of the measured piece 16 is measured: the measured piece 16 is measured according to the method of the step one, the data of the radius deviation is read by the pressure-moving reading meter 15, the device is rotated for one circle according to the method for measurement, and the diameter deviation is calculated according to the measured data of the radius deviation.
Claims (9)
1. A combined inner diameter measuring device is characterized in that: the device comprises a straight plate, a support, a sliding measuring rod, a lever, a rotating base body and a reading meter, wherein the middle of the straight plate is provided with a rectangular hole; the reading meter penetrates through a through hole of the rotating base body to be in contact with a flat contact of the lever, the support is fixed to the lower portion of the straight plate through a bolt, a through hole is formed in the lower portion of the support, a bushing is arranged in the through hole, the sliding measuring rod slides in the bushing, a first spring is installed on a shaft shoulder at the tail end of the sliding measuring rod, one end of the first spring is locked and limited through a screw cap, and the tail portion of the sliding measuring rod is in contact with.
2. A combined internal diameter measurement device according to claim 1, wherein: the straight plate is T-shaped.
3. A combined internal diameter measurement device according to claim 2, wherein: the limiting pin is arranged at two T-shaped ends of the straight plate.
4. A combined internal diameter measurement device according to claim 1, wherein: the side surface of the rotating base body is provided with a threaded hole, and a screw penetrates through the threaded hole to fix the reading meter.
5. A combined internal diameter measurement device according to claim 1, wherein: and a second spring is arranged on the side of the reading meter close to the flat contact.
6. A combined internal diameter measurement device according to claim 1, wherein: the lever is bent at 90 °.
7. A combined internal diameter measurement device according to claim 1, wherein: a baffle is fixed on the rotating base body through a screw, and the stroke of the lever is limited.
8. A combined internal diameter measurement device according to claim 1, wherein: the length of the sliding measuring rod can be designed according to the actual condition of the measured piece.
9. A measuring method of a combined inner diameter measuring device according to any one of claims 1 to 8, wherein: the method comprises the following specific steps:
the method comprises the following steps: before measurement, the reading meter is zero: before measurement, a ball contact of a lever is contacted with the tail end of a sliding measuring rod under the action of a spring II, the sliding measuring rod is in a forward trend under the action of the spring I, the sliding measuring rod is inserted into the upper part of a standard size part, a straight plate is placed on the upper plane of the standard size part, the straight plate is pushed on the upper plane of the standard size part along the radial direction, two limiting pins are ensured to be contacted with a spigot of the standard size part, at the moment, the spherical surface at the top end of the sliding measuring rod is contacted with the diameter surface of the standard size part, the contact state is kept under the compression of the spring II, the ball contact on the lever is contacted with the tail end surface of the sliding measuring rod, the contact state is kept under the compression state of the spring I, the flat contact of the lever is contacted with a reading meter contact, and;
step two: and (3) measuring the radius deviation of the measured piece: and measuring the measured piece according to the method in the step one, reading the radius deviation data by a pressure-driven reading meter, rotating the device for one circle according to the method, and calculating the diameter deviation according to the measured radius deviation data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911070023.9A CN110823159A (en) | 2019-11-05 | 2019-11-05 | Combined inner diameter measuring device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911070023.9A CN110823159A (en) | 2019-11-05 | 2019-11-05 | Combined inner diameter measuring device and method |
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| Publication Number | Publication Date |
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| CN110823159A true CN110823159A (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911070023.9A Pending CN110823159A (en) | 2019-11-05 | 2019-11-05 | Combined inner diameter measuring device and method |
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| CN (1) | CN110823159A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483628A (en) * | 2021-07-29 | 2021-10-08 | 中国航发沈阳黎明航空发动机有限责任公司 | Blade tenon coating thickness measuring device and using method |
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| RU2192618C1 (en) * | 2001-05-31 | 2002-11-10 | Открытое акционерное общество "Завод им. В.А. Дегтярева" | Device measuring inner diameters of low-rigidity rings |
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| CN2839957Y (en) * | 2005-09-16 | 2006-11-22 | 哈尔滨量具刃具集团有限责任公司 | Adjustable positioning internal diameter instrument support |
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| CN106895768A (en) * | 2017-03-31 | 2017-06-27 | 长春市美科汽车零部件有限公司 | Diameter of ring groove cubing |
| CN207231362U (en) * | 2017-10-18 | 2018-04-13 | 湖北华阳汽车变速系统股份有限公司 | Semi arch measures cubing |
| CN208187312U (en) * | 2018-04-12 | 2018-12-04 | 辽宁轻工职业学院 | A kind of rim inner diameter measuring device |
| CN208952855U (en) * | 2018-09-03 | 2019-06-07 | 南通市通佳工程质量检测有限公司 | A kind of measuring scale accurately measuring pipe internal diameter and out-of-roundness |
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2019
- 2019-11-05 CN CN201911070023.9A patent/CN110823159A/en active Pending
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| CN2677870Y (en) * | 2004-01-15 | 2005-02-09 | 万向钱潮股份有限公司 | Detecting instrument for lower ditch of Hub of hub unit part |
| CN2839957Y (en) * | 2005-09-16 | 2006-11-22 | 哈尔滨量具刃具集团有限责任公司 | Adjustable positioning internal diameter instrument support |
| CN202141425U (en) * | 2011-06-26 | 2012-02-08 | 河南科隆集团有限公司 | Surface accuracy testing tool of workpieces |
| CN204240901U (en) * | 2014-10-27 | 2015-04-01 | 长沙佳能通用泵业有限公司 | Adjustable measurement measurer |
| CN106895768A (en) * | 2017-03-31 | 2017-06-27 | 长春市美科汽车零部件有限公司 | Diameter of ring groove cubing |
| CN207231362U (en) * | 2017-10-18 | 2018-04-13 | 湖北华阳汽车变速系统股份有限公司 | Semi arch measures cubing |
| CN208187312U (en) * | 2018-04-12 | 2018-12-04 | 辽宁轻工职业学院 | A kind of rim inner diameter measuring device |
| CN208952855U (en) * | 2018-09-03 | 2019-06-07 | 南通市通佳工程质量检测有限公司 | A kind of measuring scale accurately measuring pipe internal diameter and out-of-roundness |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483628A (en) * | 2021-07-29 | 2021-10-08 | 中国航发沈阳黎明航空发动机有限责任公司 | Blade tenon coating thickness measuring device and using method |
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Application publication date: 20200221 |