CN114894072A - Packer depth gauge and irregular inner cavity detection method of part - Google Patents

Packer depth gauge and irregular inner cavity detection method of part Download PDF

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Publication number
CN114894072A
CN114894072A CN202210452772.3A CN202210452772A CN114894072A CN 114894072 A CN114894072 A CN 114894072A CN 202210452772 A CN202210452772 A CN 202210452772A CN 114894072 A CN114894072 A CN 114894072A
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CN
China
Prior art keywords
inner cavity
measuring
precision
tool
measured
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Pending
Application number
CN202210452772.3A
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Chinese (zh)
Inventor
曹永东
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.)
Ningbo Rongshun Precision Machinery Manufacturing Co Ltd
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Ningbo Rongshun Precision Machinery Manufacturing Co Ltd
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Priority to CN202210452772.3A priority Critical patent/CN114894072A/en
Publication of CN114894072A publication Critical patent/CN114894072A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/18Measuring arrangements characterised by the use of mechanical techniques for measuring depth
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

The invention discloses a packer depth gauge which comprises an inner cavity measuring gauge body, wherein the inner cavity measuring gauge body is integrally formed by a tin-bismuth alloy material, a measuring cylinder body and a conical section matched with the measuring cylinder body are arranged on the inner cavity measuring gauge body, the inner cavity measuring gauge body is of a hollow structure, a measuring dial indicator is arranged in the inner cavity measuring gauge body, and a movable pin matched with the inner cavity measuring gauge body is arranged below the measuring dial indicator. The invention also discloses a method for detecting the irregular inner cavity of the part. The invention improves the detection precision and reduces the detection cost.

Description

Packer depth gauge and irregular inner cavity detection method of part
Technical Field
The invention relates to the technical field of detection tools, in particular to a packer depth detection tool and an irregular inner cavity detection method of a part.
Background
The gauge is a simple tool for controlling various sizes (such as pore diameter, space size and the like) of products by industrial production enterprises, improves the production efficiency and the control quality, is suitable for mass production of products such as automobile parts, and replaces professional measuring tools such as smooth plug gauges, threaded plug gauges, outer diameter calipers, micrometer gauges and the like.
The micrometer screw, also known as micrometer, micrometer screw, micrometer caliper, micrometer caliper are more precise length measuring tools than vernier calipers, and can measure the length or the diameter of a sphere to 0.01mm, with the measuring range of several centimeters. One part of the screw is processed into a thread with the thread pitch of 0.5mm, when the screw rotates in a threaded sleeve of a fixed sleeve, the screw advances or retreats, a movable sleeve and a screw rod are connected into a whole, and the periphery of the screw is equally divided into 50 grids. The whole circle number of the screw rod rotation is measured by the scribed lines on the fixed sleeve at intervals of 0.5mm, the part less than one circle is measured by the scribed lines on the periphery of the movable sleeve, and the final measurement result needs to be estimated and read by one bit.
In numerical control machining, the inner cavity diameter of some irregular parts is required to be measured, for example: taper, circular arc part, generally adopt at present to cut apart the back with the part center and measure through the mode of projecting apparatus, measure relatively complicacy, measure not accurate, perhaps adopt accurate three-dimensional to measure, but relative measurement cost is high, and is fast, and the cost of labor is high, so this needs to improve.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a packer depth gauge, which is used for solving the defects of inaccurate measurement, high measurement cost, low measurement speed and high labor cost in the prior art.
Disclosure of the invention
In order to solve the technical problems, the invention provides the following technical scheme: the packer depth gauge comprises an inner cavity measuring gauge body, wherein the inner cavity measuring gauge body is integrally formed by a tin-bismuth alloy material, a measuring cylinder body and a conical section matched with the measuring cylinder body are arranged on the inner cavity measuring gauge body, the inner cavity measuring gauge body is of a hollow structure, a measuring dial indicator is arranged in the inner cavity measuring gauge body, and a movable pin matched with the inner cavity measuring gauge body is arranged below the measuring dial indicator.
Preferably, in order to improve the detection precision, an adjusting spring is connected between the movable pin and the measuring end of the measuring dial indicator.
Preferably, in order to facilitate limiting, a positioning fixing plate which abuts against the upper end face of the part to be measured is further arranged below the measurement dial indicator.
The invention also discloses a method for detecting the irregular inner cavity of the part, which comprises the following specific measurement steps of:
s1, pre-obtaining one or two precision balls, defining the diameter of the precision balls as H1, then placing the precision balls into an inner cavity of a part to be measured, wherein the precision balls are tangent to the tapered surface of the inner cavity, and the top of each precision ball is parallel to the upper end surface of the tapered surface of the inner cavity;
s2, placing the inner cavity measuring and detecting tool into the inner cavity of the part to be detected, and ensuring that the bottom of the inner cavity measuring and detecting tool is abutted against the top of the precision ball;
s2, measuring the distance from the top end of the precision ball to the upper end face of the part to be measured by the dial indicator and defining the distance as H2;
s3, obtaining the depth of the inner cavity of the part to be measured by obtaining the number N of the precision balls and then calculating H2+ N multiplied by H1.
Preferably, in S1, when two precision balls are placed in the inner cavity of the part to be measured, the distance H3 between the center points of the two precision balls is obtained, the length of the taper surface of the part to be measured is obtained through calculation, and then the angle of the taper surface of the part to be measured is obtained through calculation.
Preferably, the lower part of the movable pin penetrates through the inner cavity measuring gauge and then can abut against the top end of the precision ball below the movable pin.
(III) advantageous effects
The invention provides a packer depth gauge, which has the advantages that: during measurement, one or two precision balls are selected according to the depth of a conical surface in an inner cavity of a part to be measured, the diameter of each precision ball is obtained before measurement, then the precision balls are placed into the conical surface in the inner cavity of the part to be measured, the precision balls are ensured to be tangent to the conical surface of the inner cavity, and the tops of the precision balls are ensured to be parallel to the upper end surface of the conical surface of the inner cavity; then the inner cavity measuring and checking tool is put into the inner cavity of the part to be measured, the bottom of the inner cavity measuring and checking tool, namely the bottom of the conical section, is ensured to be abutted against the top of the precision ball, then the distance from the top end of the precision ball to the upper end surface of the part to be measured is measured by a measuring dial indicator and is defined as H2, then the depth of the inner cavity of the part to be measured is obtained by obtaining the number N of the precise balls and calculating H2+ NxH 1, therefore, the inner cavity measuring gauge prepared by the invention can directly and rapidly measure the inner cavity depth of the irregular part, compared with the prior measuring mode, the measuring tool is simpler, quicker and more convenient, the cost is relatively lower, meanwhile, the inner cavity measuring tool is integrally formed by the tin-bismuth alloy material, because the tin bismuth alloy material is low in melting point and not easy to deform, and the tin bismuth alloy material is not easy to deform after being cooled, the detection precision can be guaranteed to be higher finally.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of an internal structure of a packer depth gauge of the present invention;
FIG. 2 is a schematic view of an installation structure of the packer depth gauge and a part to be measured.
In the figure: the inner cavity measuring tool comprises an inner cavity measuring tool 1, a measuring cylinder 1-1, a conical section 1-2, a measuring dial indicator 2, a movable pin 3, an adjusting spring 4, a positioning fixing plate 5 and a part to be measured 6.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
Referring to fig. 1, an embodiment of the present invention: a packer depth gauge comprises an inner cavity measuring gauge 1, wherein the inner cavity measuring gauge 1 is integrally formed by a tin-bismuth alloy material, a measuring cylinder 1-1 and a conical section 1-2 matched with the measuring cylinder 1-1 are arranged on the inner cavity measuring gauge 1, the inner cavity measuring gauge 1 is of a hollow structure, a measuring dial indicator 2 is arranged in the inner cavity measuring gauge 1, and a movable pin 3 matched with the inner cavity measuring gauge 1 is arranged below the measuring dial indicator 2.
Preferably, in order to improve the detection accuracy, an adjusting spring 4 is connected between the movable pin 3 and the measuring end of the measuring dial indicator 2.
Preferably, in order to facilitate the limiting, a positioning fixing plate 5 abutting against the upper end face of the part to be measured 6 is further arranged below the measurement dial indicator 2.
During measurement, one or two precision balls are selected according to the depth of the conical surface in the inner cavity of the part to be measured 6, the diameter of each precision ball is obtained before measurement, then the precision balls are placed into the conical surface in the inner cavity of the part to be measured 6, the precision balls are ensured to be tangent to the conical surface of the inner cavity, and the top of each precision ball is ensured to be parallel to the upper end surface of the conical surface of the inner cavity; the inner cavity measuring and detecting tool 1 is placed into the inner cavity of the part 6 to be detected, the bottom of the inner cavity measuring and detecting tool 1, namely the bottom of the conical section 1-2, is enabled to be abutted against the top of the precision ball, then the distance from the top end of the precision ball at the measuring position of the dial indicator 2 to the upper end face of the part 6 to be detected is measured and defined as H2, then the depth of the inner cavity of the part 6 to be detected is obtained by obtaining the number N of the precision balls and calculating H2+ NxH 1, therefore, the inner cavity measuring and detecting tool 1 prepared by the invention can directly and quickly measure the depth of the inner cavity of an irregular part, compared with the existing measuring mode, the inner cavity measuring and detecting tool is simpler, quicker and more convenient, and lower in cost, meanwhile, the inner cavity measuring and detecting tool 1 is integrally formed by a tin-bismuth alloy material, and the tin-bismuth alloy material has low melting point, is not easy to deform and is not easy to deform after being cooled, and finally, the detection precision can be ensured to be higher.
As shown in fig. 2, the embodiment further discloses a method for detecting an irregular inner cavity of a part, which includes the above packer depth gauge, and the specific measurement steps are as follows:
s1, pre-obtaining one or two precision balls 7, defining the diameter of each precision ball 7 as H1, then placing the precision balls 7 into the inner cavity of the part 6 to be tested, wherein the precision balls 7 are tangent to the tapered surface of the inner cavity, and the top of each precision ball 7 is ensured to be parallel to the upper end surface of the tapered surface of the inner cavity;
s2, placing the inner cavity measuring and detecting tool 1 into the inner cavity of the part 6 to be detected, and ensuring that the bottom of the inner cavity measuring and detecting tool 1 is abutted against the top of the precision ball 7;
s2, measuring the distance from the top end of the precision ball 7 to the upper end face of the part 6 to be measured by the dial indicator 2, and defining the distance as H2;
s3, obtaining the depth of the inner cavity of the part 6 to be measured by obtaining the number N of the precision balls 7 and then calculating H2+ NxH 1.
Preferably, in S1, when two precision balls 7 are placed in the inner cavity of the part to be measured 6, the distance H3 between the center points of the two precision balls 7 is obtained, and after the length of the tapered surface of the part to be measured 6 is obtained through calculation, the angle of the tapered surface of the part to be measured 6 is obtained through calculation.
Preferably, the lower part of the movable pin 3 passes through the inner cavity measuring gauge 1 and then can abut against the top end of the lower precision ball 7.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (6)

1. The utility model provides a utensil is examined to packer depth which characterized in that: the measuring tool comprises an inner cavity measuring tool (1), wherein the inner cavity measuring tool (1) is integrally formed by a tin-bismuth alloy material, a measuring cylinder (1-1) and a conical section (1-2) matched with the measuring cylinder (1-1) are arranged on the inner cavity measuring tool (1), the inner cavity measuring tool (1) is of a hollow structure, a measuring dial indicator (2) is arranged in the inner cavity measuring tool (1), and a movable pin (3) matched with the inner cavity measuring tool (1) is arranged below the measuring dial indicator (2).
2. The packer depth gauge of claim 1, wherein: an adjusting spring (4) is connected between the movable pin (3) and the measuring end of the measuring dial indicator (2).
3. The tool for testing the depth of the packer as claimed in claim 1, wherein: and a positioning fixing plate (5) which is abutted against the upper end face of the part to be measured is also arranged below the measuring dial indicator (2).
4. A method for detecting an irregular inner cavity of a part comprises the step of adopting the packer depth detection tool of any one of claims 1-3, and is characterized in that the specific measurement steps are as follows:
s1, pre-obtaining one or two precision balls, defining the diameter of the precision balls as H1, then placing the precision balls into an inner cavity of a part to be measured, wherein the precision balls are tangent to the tapered surface of the inner cavity, and the top of each precision ball is parallel to the upper end surface of the tapered surface of the inner cavity;
s2, placing the inner cavity measuring and detecting tool (1) into the inner cavity of the part to be detected, and ensuring that the bottom of the inner cavity measuring and detecting tool (1) is abutted against the top of the precision ball;
s2, measuring the distance from the top end of the precision ball to the upper end face of the part to be measured by the dial indicator (2) and defining the distance as H2;
s3, obtaining the depth of the inner cavity of the part to be measured by obtaining the number N of the precision balls and then calculating H2+ N multiplied by H1.
5. The method of claim 3, wherein in step S1, when two precision balls are put into the cavity of the part to be tested, the distance H3 between the centers of the two precision balls is obtained, and after the length of the taper surface of the part to be tested is obtained by calculation, the angle of the taper surface of the part to be tested is obtained by calculation.
6. The method for detecting the irregular inner cavity of the part according to claim 3, wherein the lower part of the movable pin (3) can abut against the top end of a precision ball below after penetrating through the inner cavity measuring gauge (1).
CN202210452772.3A 2022-04-27 2022-04-27 Packer depth gauge and irregular inner cavity detection method of part Pending CN114894072A (en)

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CN202210452772.3A CN114894072A (en) 2022-04-27 2022-04-27 Packer depth gauge and irregular inner cavity detection method of part

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Application Number Priority Date Filing Date Title
CN202210452772.3A CN114894072A (en) 2022-04-27 2022-04-27 Packer depth gauge and irregular inner cavity detection method of part

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Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980022021A (en) * 1996-09-20 1998-06-25 김영귀 Hole size measuring gauge
CN202255232U (en) * 2011-10-17 2012-05-30 安徽省合肥汽车锻件有限责任公司 Quick checking tool for depth of center hole
CN103335579A (en) * 2013-07-08 2013-10-02 河北华北柴油机有限责任公司 Taper position gauge for accurately measuring big end diameter error of taper hole
CN103486943A (en) * 2013-09-12 2014-01-01 浙江吉利控股集团有限公司 Taper hole depth detecting device
CN203928977U (en) * 2014-05-20 2014-11-05 奇瑞汽车股份有限公司 Cone hole detection device
CN203964841U (en) * 2014-07-30 2014-11-26 宁波金凌中德汽车部件有限公司 Conical surface depth detection instrument
CN204085414U (en) * 2014-07-01 2015-01-07 宁波可瑞迪化油器有限公司 A kind of boss step depth cubing
CN205957871U (en) * 2016-08-01 2017-02-15 四川绵阳三力股份有限公司 Depth detection apparatus
CN206019542U (en) * 2016-08-22 2017-03-15 浙江鸿程传动机械有限公司 A kind of depth of center hole cubing
CN207923020U (en) * 2018-03-30 2018-09-28 浙江中马传动股份有限公司 Shaft workpiece center hole cubing
CN209116945U (en) * 2018-12-04 2019-07-16 东风(十堰)汽车锻钢件有限公司 A kind of sphere hole depth detection apparatus
KR102054766B1 (en) * 2018-08-16 2019-12-12 한국항공우주산업 주식회사 Accurate meter for flush head on aircraft and Evaluation Method for flush head using that
CN215491477U (en) * 2021-09-22 2022-01-11 天津天启晟宇装备制造有限公司 Detection tool for detecting depth of non-dovetail type steel back spherical surface

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980022021A (en) * 1996-09-20 1998-06-25 김영귀 Hole size measuring gauge
CN202255232U (en) * 2011-10-17 2012-05-30 安徽省合肥汽车锻件有限责任公司 Quick checking tool for depth of center hole
CN103335579A (en) * 2013-07-08 2013-10-02 河北华北柴油机有限责任公司 Taper position gauge for accurately measuring big end diameter error of taper hole
CN103486943A (en) * 2013-09-12 2014-01-01 浙江吉利控股集团有限公司 Taper hole depth detecting device
CN203928977U (en) * 2014-05-20 2014-11-05 奇瑞汽车股份有限公司 Cone hole detection device
CN204085414U (en) * 2014-07-01 2015-01-07 宁波可瑞迪化油器有限公司 A kind of boss step depth cubing
CN203964841U (en) * 2014-07-30 2014-11-26 宁波金凌中德汽车部件有限公司 Conical surface depth detection instrument
CN205957871U (en) * 2016-08-01 2017-02-15 四川绵阳三力股份有限公司 Depth detection apparatus
CN206019542U (en) * 2016-08-22 2017-03-15 浙江鸿程传动机械有限公司 A kind of depth of center hole cubing
CN207923020U (en) * 2018-03-30 2018-09-28 浙江中马传动股份有限公司 Shaft workpiece center hole cubing
KR102054766B1 (en) * 2018-08-16 2019-12-12 한국항공우주산업 주식회사 Accurate meter for flush head on aircraft and Evaluation Method for flush head using that
CN209116945U (en) * 2018-12-04 2019-07-16 东风(十堰)汽车锻钢件有限公司 A kind of sphere hole depth detection apparatus
CN215491477U (en) * 2021-09-22 2022-01-11 天津天启晟宇装备制造有限公司 Detection tool for detecting depth of non-dovetail type steel back spherical surface

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