US20100299951A1 - Measurement device - Google Patents
Measurement device Download PDFInfo
- Publication number
- US20100299951A1 US20100299951A1 US12/493,145 US49314509A US2010299951A1 US 20100299951 A1 US20100299951 A1 US 20100299951A1 US 49314509 A US49314509 A US 49314509A US 2010299951 A1 US2010299951 A1 US 2010299951A1
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- US
- United States
- Prior art keywords
- hole
- measurement
- support member
- center
- distance
- 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.)
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Classifications
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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
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
Definitions
- the present disclosure relates to measurement devices, and particularly to a measurement device measuring a distance between a center of a through hole defined in an article and a side of the article.
- a punching or bending mode is frequently used.
- the devices form curved panels, many parts of which can define multiple through holes.
- a caliper is frequently used.
- measurement precision is lowered.
- FIG. 1 is an exploded, isometric view of a first exemplary embodiment of a measurement device, together with an article.
- FIG. 2 is an assembled, isometric view of the measurement device and the article of FIG. 1 .
- FIGS. 3 and 4 are cross-sections of FIG. 2 , taken along the line III-III, but showing different states.
- FIG. 5 is an assembled, isometric view of a second exemplary embodiment of a measurement device and an article.
- FIG. 6 is an assembled, isometric view of a third exemplary embodiment of a measurement device and an article.
- a first exemplary embodiment of a measurement device 7 determines whether a distance between a center of a through hole 102 defined in a panel 100 and a side 104 of the panel 100 of an article 10 meets a determined specification.
- the measurement device 7 includes a positioning member 20 , a support member 30 , a measurement member 40 , an elastic element such as a helical spring 70 , and a fixing member 60 .
- the article 10 may be a computer part, although the disclosure is not limited thereto.
- the positioning member 20 is stepped, and includes a rectangular main body 202 , and a rectangular received portion 204 extending from a top end of the main body 202 .
- the main body 202 is thicker than the received portion 204 .
- the main body 202 includes an inside surface 208 .
- Two fastening holes 206 are defined in the received portion 204 , for mounting members, such as two fasteners 50 passing through the fastening holes 206 to fasten the positioning member 20 to the support member 30 .
- the support member 30 is generally rectangular, and includes a top surface 302 , a bottom surface 304 opposite to the top surface 302 , and a side surface 306 perpendicularly connected between corresponding ends of the top and bottom surfaces 302 , 304 .
- a stepped hole 310 is defined in the support member 30 , extending through to the top surface 302 and the bottom surface 304 .
- the stepped hole 310 includes a small hole 312 adjacent to the top surface 302 , and a great hole 314 adjacent to the bottom surface 304 and communicating with the small hole 312 .
- Two fastening holes 308 are defined in the side surface 306 , for the fasteners 50 passing through the fastening holes 206 and 308 to engage the fastening holes 308 , respectively. Therefore, the positioning member 20 is fixed to the support member 30 .
- the measurement member 40 is cylindrical and includes an upper portion 402 and a lower portion 405 extending from a first end and a second end of the measurement member 40 , respectively.
- An annular securing portion 404 protrudes from a circumference of the lower portion 405 .
- a diameter of the securing portion 404 is less than a diameter of the great hole 314 of the stepped hole 310 .
- a diameter of the upper portion 402 and the lower portion 405 is equal to a diameter of the small hole 312 of the stepped hole 310 , and less than a diameter of the through hole 102 .
- An annular groove 406 is defined in a circumference of the upper portion 402 .
- the upper portion 402 or the lower portion 405 of the measurement member 40 can be other shapes, such as rectangular or tapered.
- a distance between an axis of the lower portion 405 and the inside surface 208 of the positioning member 20 is set to equal a normal distance between the center of the through hole 102 and the side 104 specified by users in advance.
- the fixing member 60 is circular and defines an ⁇ -shaped opening 602 therein to engage the groove 406 of the measurement member 40 .
- the spring 70 fits about the measurement member 40 and resists the securing portion 404 with a first end of the spring 70 .
- the upper portion 402 of the measurement member 40 passes through the stepped hole 310 from the bottom surface 304 of the support member 30 , with the upper portion 402 extending out from the top surface 302 .
- the fixing member 60 resists the top surface 302 of the support member 30 and engages the groove 406 of the measurement member 40 , to mount the measurement member 40 to the support member 30 .
- the spring 70 drives a part of the lower portion 405 of the measurement member 40 to extend out from the bottom surface 304 of the support member 30 .
- the inside surface 208 of the positioning member 20 resists the side surface 306 of the support member 30 .
- the fasteners 50 pass through the corresponding fastening holes 206 to engage the corresponding fastening holes 308 , thereby fastening the positioning member 20 to the support member 30 .
- the inside surface 208 resists the side 104 of the article 10 , and the measurement member 40 together with the support member 30 is positioned on the panel 100 , with a bottom of the lower portion 405 moving on the top surface 302 of the support member 30 . If the distance between the center of the through hole 102 and the side 104 meets the determined specification, the spring 70 is restored to drive the lower portion 405 into the through hole 102 as shown in FIG. 3 , once the lower portion 405 aligns with the through hole 102 . However, if the distance between the center of the through hole 102 and the side 104 does not meet determined specifications, the lower portion 405 cannot enter into the through hole 102 as shown in FIG. 4 .
- FIG. 5 is a second exemplary embodiment of a measurement device 8 , differing from the first embodiment in that a positioning member 80 and a support member 30 are integrally formed, and the positioning member 80 extends vertically from an end of the support member 30 .
- FIG. 6 is a third exemplary embodiment of a measurement device 9 , differing from the second embodiment in that a positioning member 902 two cylinders extending vertically from an end of a support member 30 .
- measurement of the distance between the center of the through hole 102 and the side 104 can also be achieved by measuring a distance between the center of the through hole 102 and a side 106 opposite to the side 104 , and the positioning members 20 , 80 and 902 can be omitted.
- a distance between the center of the lower portion 405 and the side surface 306 is set to equal a normal distance between the center of the through hole 102 and the side 106 .
- the diameter “d” of the through hole 102 is about 6 mm
- the normal distance “L” between the center of the through hole 102 and the side 104 is about 20 mm
- the thickness between the side 104 and the side 106 is about 5 mm
- the normal distance “L 1 ” between the center of the through hole 102 and the side 106 is about 15 mm specified by users in advance.
- the permissible error “e” is about 0.5 mm
- operations of the measurement device differ from those of the first exemplary embodiment, besides the side surface 306 resists the side 106 and the bottom surface 304 resists an inside surface of the panel 100 , whereby, the side surface 306 works as a positioning member.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
Description
- 1. Technical Field
- The present disclosure relates to measurement devices, and particularly to a measurement device measuring a distance between a center of a through hole defined in an article and a side of the article.
- 2. Description of Related Art
- In device machining, a punching or bending mode is frequently used. Often, the devices form curved panels, many parts of which can define multiple through holes. To ensure the distance between a center of a through hole defined in a panel and a side of the panel meets determined specifications, a caliper is frequently used. However, due to the complicated operation of the caliper and intrinsic fallibility thereof, measurement precision is lowered.
-
FIG. 1 is an exploded, isometric view of a first exemplary embodiment of a measurement device, together with an article. -
FIG. 2 is an assembled, isometric view of the measurement device and the article ofFIG. 1 . -
FIGS. 3 and 4 are cross-sections ofFIG. 2 , taken along the line III-III, but showing different states. -
FIG. 5 is an assembled, isometric view of a second exemplary embodiment of a measurement device and an article. -
FIG. 6 is an assembled, isometric view of a third exemplary embodiment of a measurement device and an article. - Referring to
FIGS. 1 and 3 , a first exemplary embodiment of ameasurement device 7 determines whether a distance between a center of a throughhole 102 defined in apanel 100 and aside 104 of thepanel 100 of anarticle 10 meets a determined specification. Themeasurement device 7 includes apositioning member 20, asupport member 30, ameasurement member 40, an elastic element such as ahelical spring 70, and afixing member 60. In this embodiment, thearticle 10 may be a computer part, although the disclosure is not limited thereto. - The
positioning member 20 is stepped, and includes a rectangularmain body 202, and a rectangular receivedportion 204 extending from a top end of themain body 202. Themain body 202 is thicker than the receivedportion 204. Themain body 202 includes aninside surface 208. Twofastening holes 206 are defined in the receivedportion 204, for mounting members, such as twofasteners 50 passing through thefastening holes 206 to fasten thepositioning member 20 to thesupport member 30. - The
support member 30 is generally rectangular, and includes atop surface 302, abottom surface 304 opposite to thetop surface 302, and aside surface 306 perpendicularly connected between corresponding ends of the top andbottom surfaces stepped hole 310 is defined in thesupport member 30, extending through to thetop surface 302 and thebottom surface 304. Thestepped hole 310 includes asmall hole 312 adjacent to thetop surface 302, and agreat hole 314 adjacent to thebottom surface 304 and communicating with thesmall hole 312. Twofastening holes 308 are defined in theside surface 306, for thefasteners 50 passing through thefastening holes fastening holes 308, respectively. Therefore, thepositioning member 20 is fixed to thesupport member 30. - The
measurement member 40 is cylindrical and includes anupper portion 402 and alower portion 405 extending from a first end and a second end of themeasurement member 40, respectively. Anannular securing portion 404 protrudes from a circumference of thelower portion 405. A diameter of thesecuring portion 404 is less than a diameter of thegreat hole 314 of thestepped hole 310. A diameter of theupper portion 402 and thelower portion 405 is equal to a diameter of thesmall hole 312 of thestepped hole 310, and less than a diameter of the throughhole 102. Anannular groove 406 is defined in a circumference of theupper portion 402. In other embodiments, theupper portion 402 or thelower portion 405 of themeasurement member 40 can be other shapes, such as rectangular or tapered. When the distance between the center of the throughhole 102 and theside 104 is to be measured, a distance between an axis of thelower portion 405 and theinside surface 208 of thepositioning member 20 is set to equal a normal distance between the center of the throughhole 102 and theside 104 specified by users in advance. For example, if the diameter “d” of the throughhole 102 is about 6 millimeters, the normal distance “L” between the center of the throughhole 102 and theside 104 is about 20 mm specified by users in advance, and a permissible error “e” is about 0.5 mm, the diameter “x” of thelower portion 405 can be deduced by a formula of x=d−2*e=6−2*0.5=about 5 mm, indicating that the distance between the center of the throughhole 102 and theside 104 meets the determined specification that the distance is within the range of about 20±0.5 mm. - The
fixing member 60 is circular and defines an Ω-shaped opening 602 therein to engage thegroove 406 of themeasurement member 40. - Referring to
FIGS. 2 to 4 , during assembly, thespring 70 fits about themeasurement member 40 and resists thesecuring portion 404 with a first end of thespring 70. Theupper portion 402 of themeasurement member 40 passes through thestepped hole 310 from thebottom surface 304 of thesupport member 30, with theupper portion 402 extending out from thetop surface 302. Thefixing member 60 resists thetop surface 302 of thesupport member 30 and engages thegroove 406 of themeasurement member 40, to mount themeasurement member 40 to thesupport member 30. Thespring 70 drives a part of thelower portion 405 of themeasurement member 40 to extend out from thebottom surface 304 of thesupport member 30. Theinside surface 208 of thepositioning member 20 resists theside surface 306 of thesupport member 30. Thefasteners 50 pass through thecorresponding fastening holes 206 to engage thecorresponding fastening holes 308, thereby fastening thepositioning member 20 to thesupport member 30. - In use, the
inside surface 208 resists theside 104 of thearticle 10, and themeasurement member 40 together with thesupport member 30 is positioned on thepanel 100, with a bottom of thelower portion 405 moving on thetop surface 302 of thesupport member 30. If the distance between the center of the throughhole 102 and theside 104 meets the determined specification, thespring 70 is restored to drive thelower portion 405 into the throughhole 102 as shown inFIG. 3 , once thelower portion 405 aligns with the throughhole 102. However, if the distance between the center of the throughhole 102 and theside 104 does not meet determined specifications, thelower portion 405 cannot enter into the throughhole 102 as shown inFIG. 4 . -
FIG. 5 is a second exemplary embodiment of ameasurement device 8, differing from the first embodiment in that apositioning member 80 and asupport member 30 are integrally formed, and thepositioning member 80 extends vertically from an end of thesupport member 30. -
FIG. 6 is a third exemplary embodiment of ameasurement device 9, differing from the second embodiment in that apositioning member 902 two cylinders extending vertically from an end of asupport member 30. - Referring again to
FIG. 1 , in other embodiments, measurement of the distance between the center of the throughhole 102 and theside 104 can also be achieved by measuring a distance between the center of the throughhole 102 and aside 106 opposite to theside 104, and thepositioning members lower portion 405 and theside surface 306 is set to equal a normal distance between the center of the throughhole 102 and theside 106. For example, if the diameter “d” of the throughhole 102 is about 6 mm, the normal distance “L” between the center of the throughhole 102 and theside 104 is about 20 mm, the thickness between theside 104 and theside 106 is about 5 mm, the normal distance “L1” between the center of thethrough hole 102 and theside 106 is about 15 mm specified by users in advance. If the permissible error “e” is about 0.5 mm, a diameter “x” of thelower portion 405 is deduced by the formula of x=d−2*e=6−2*0.5=about 5 mm. In use, operations of the measurement device differ from those of the first exemplary embodiment, besides theside surface 306 resists theside 106 and thebottom surface 304 resists an inside surface of thepanel 100, whereby, theside surface 306 works as a positioning member. - It is to be understood, however, that even though numerous characteristics and advantages of the embodiments have been set forth in the foregoing description, together with details of the structure and function of the embodiments, the disclosure is illustrative only, and changes may be made in details, especially in matters of shape, size, and arrangement of parts within the principles of the embodiments to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Claims (14)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009103028506A CN101907434A (en) | 2009-06-02 | 2009-06-02 | Device for detecting distance between edge and hole |
CN200910302850.6 | 2009-06-02 |
Publications (2)
Publication Number | Publication Date |
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US7827702B1 US7827702B1 (en) | 2010-11-09 |
US20100299951A1 true US20100299951A1 (en) | 2010-12-02 |
Family
ID=43034706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US12/493,145 Expired - Fee Related US7827702B1 (en) | 2009-06-02 | 2009-06-26 | Measurement device |
Country Status (2)
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US (1) | US7827702B1 (en) |
CN (1) | CN101907434A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140041243A1 (en) * | 2012-08-13 | 2014-02-13 | Hon Hai Precision Industry Co., Ltd. | Test device for coaxial accuracy |
Families Citing this family (14)
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CN102735137A (en) * | 2011-04-12 | 2012-10-17 | 鸿富锦精密工业(深圳)有限公司 | Detection apparatus |
CN102749005B (en) * | 2011-04-21 | 2015-02-25 | 赛恩倍吉科技顾问(深圳)有限公司 | Hole location tolerance detection device |
CN102749015B (en) * | 2011-04-21 | 2016-04-13 | 华北理工大学 | Detection device for distance between centers of two holes |
CN102297643B (en) * | 2011-05-27 | 2013-02-27 | 无锡创明传动工程有限公司 | Hole position detection combined structure |
CN102735142B (en) * | 2012-06-28 | 2015-03-11 | 长城汽车股份有限公司 | Device for detecting height elevating platform |
CN104101275B (en) * | 2013-04-10 | 2016-12-28 | 富泰华工业(深圳)有限公司 | Detection device |
CN105371718A (en) * | 2015-10-30 | 2016-03-02 | 重庆至信实业有限公司 | Detection method for car door lock connection plate |
CN105258594A (en) * | 2015-10-30 | 2016-01-20 | 重庆至信实业有限公司 | Apparatus for detecting connecting plate of car door lock |
CN106091876A (en) * | 2016-08-17 | 2016-11-09 | 长园高能电气股份有限公司 | Size detection auxiliary member and detection method at insulator end face prolongation |
CN106370085A (en) * | 2016-11-11 | 2017-02-01 | 安徽江淮汽车股份有限公司 | Hole-surface distance measuring tool |
CN108507445A (en) * | 2018-03-19 | 2018-09-07 | 中信戴卡股份有限公司 | A kind of cubing of measured hole center to plan range |
CN110715594B (en) * | 2019-11-21 | 2024-06-18 | 沈阳飞机工业(集团)有限公司 | Measuring clamp for distance from space circle center to end face |
CN111521092A (en) * | 2020-04-03 | 2020-08-11 | 中国航发哈尔滨东安发动机有限公司 | Method for detecting wall thickness of aviation case |
CN112344830A (en) * | 2020-12-02 | 2021-02-09 | 中信戴卡股份有限公司 | Gauge for measuring distance from end face to hole center |
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CN101094588B (en) * | 2006-06-21 | 2010-09-29 | 深圳富泰宏精密工业有限公司 | Test clamps |
CN101358823B (en) * | 2007-07-30 | 2011-01-05 | 鸿富锦精密工业(深圳)有限公司 | Fixture for arranging elements |
CN100565089C (en) * | 2008-06-25 | 2009-12-02 | 无锡富瑞德精密机械有限公司 | Center distance measurement mechanism |
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Patent Citations (7)
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US3869801A (en) * | 1974-06-17 | 1975-03-11 | Goodwin A Lycan | Gauge for measuring the degree of alignment at the inner surfaces of two tubular members positioned end to end |
US4686769A (en) * | 1985-07-08 | 1987-08-18 | Julius Blum Gesellschaft M.B.H. | Marking gauge for use in mounting hinges |
US5068976A (en) * | 1990-01-16 | 1991-12-03 | Bell Cecil J | Apparatus for locating and drilling stud plate holes |
US6798955B2 (en) * | 2001-05-01 | 2004-09-28 | Corona Optical Systems, Inc. | Alignment apertures in an optically transparent substrate |
US20060032067A1 (en) * | 2004-08-10 | 2006-02-16 | Orr Mark A | Tool for measuring compliance with building construction codes |
US20090038171A1 (en) * | 2007-08-08 | 2009-02-12 | International Business Machines Corporation | Alignment tool for assembly of microprocessor board to server chassis |
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US20140041243A1 (en) * | 2012-08-13 | 2014-02-13 | Hon Hai Precision Industry Co., Ltd. | Test device for coaxial accuracy |
US8904662B2 (en) * | 2012-08-13 | 2014-12-09 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Test device for coaxial accuracy |
Also Published As
Publication number | Publication date |
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US7827702B1 (en) | 2010-11-09 |
CN101907434A (en) | 2010-12-08 |
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