CN2914030Y - Precision measurement instrument - Google Patents

Precision measurement instrument Download PDF

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Publication number
CN2914030Y
CN2914030Y CN 200620085297 CN200620085297U CN2914030Y CN 2914030 Y CN2914030 Y CN 2914030Y CN 200620085297 CN200620085297 CN 200620085297 CN 200620085297 U CN200620085297 U CN 200620085297U CN 2914030 Y CN2914030 Y CN 2914030Y
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China
Prior art keywords
digital display
bar
precision measuring
measuring device
survey
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Expired - Fee Related
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CN 200620085297
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Chinese (zh)
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郝华民
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Individual
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Individual
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Abstract

The utility model relates to a measuring device, more particularly a precision measuring device for precisely measuring precision component dimension. The technical project is that: the measuring device is composed of a micrometer assembly, a measure handle, a fixed measuring device and a digital display dial indicator; wherein, one end of the micrometer assembly is connected with the measure handle of the digital display dial indicator and the other end is connected with the fixed measuring device by locking screws; a digital display dial indicator bracket seat is fixed outside the measure handle and a measure axis installed inside the measure handle is linked with the digital display dial indicator. The good effect is: the precision measuring device could overcome the errors caused by human factors, so that everyone could get the same measure data if only the measuring point is right; the precision measuring device could also display the dimension data of the components measured precisely. Because the utility model adopts digital display and overcomes the reading errors of vernier caliper or micrometer, only if the measuring point is right, the display data is also right with the irreplaceable advantages compared with traditional measuring tools.

Description

Precision measuring instrument
One, technical field:
The utility model relates to a kind of surveying instrument, particularly relates to a kind of precision measuring instrument of accurate measurement precision component size.
Two, background technology:
In machining, a lot of precision components are produced in batches, has plenty of production in enormous quantities, as steel bushing, piston etc., generally adopt conventional gauges and measure, as vernier caliper, milscale etc., because part generally is to produce in enormous quantities, the problem of existence is: the one, and measurement or testing are heavier and trifling; The 2nd, inevitably there is certain artificial reading error in conventional gauges such as vernier caliper, milscale when reading; In addition, the power that the reviewer promotes complementary scale varies in size, and the data of measuring also have error; Also there is error in the data that different reviewers measure because firmly vary in size.
Three, summary of the invention:
The purpose of this utility model is exactly the above-mentioned defective that exists at prior art, and provide a kind of and overcome the error that human factor causes, and the precision measuring instrument of simplified measurement precision component workload in enormous quantities.
Its technical scheme is: be made up of milscale assembly, survey handle, fixation measuring device and digital display meter, wherein, milscale assembly one end is connected with the survey handle of band digital display meter, and the other end is connected and fixed measurement mechanism by lock screw; Described survey handle external fixation digital display table carrier base is surveyed the survey axle that is provided with in the handle with the digital display meter interlock.
Described survey handle inside is provided with elongated slot, is provided with the survey axle with protruding jackscrew in the elongated slot, and the end in elongated slot is provided with spring; Described jackscrew contact digital display meter, the other end of described survey axle connects right table bar.The end of described fixation measuring device connects the left-handed watch bar, the left-handed watch bar with survey handle in to show bar corresponding the right side of stretching out.
Described fixation measuring device can be the milscale structure, also can be the ruler measurement structure.
A kind of preferred version is: the table bar can be the cylindrical end head about described.Second kind of preferred version is: described left-handed watch bar can be the cylindrical end head, and right table bar is a hemispherical ends.The third preferred version is: the table bar can be hemispherical ends about described.The 4th kind of preferred version is: the table bar can be distinguished fixed inner diameter measurement termination about described.The 5th kind of preferred version is: the left-handed watch bar can be the cylindrical end head, and right table bar can connect leveling ruler and set nut.The 6th kind of preferred version is: the left-handed watch bar can be hemispherical ends, and right table bar can connect leveling ruler and set nut.
The beneficial effects of the utility model are: precision measuring instrument has overcome the error that human factor causes, as long as measuring point is correct, anyone data that record all are identical; Precision measuring instrument can also very accurate demonstration tested part dimensional data show that it has overcome the reading error of vernier caliper or milscale because it is a numeral, as long as measuring point is correct, video data is just correct, and therefore, it has the irreplaceable advantage of conventional gauges.
Four, description of drawings:
Accompanying drawing 1 is the structural representation of a kind of embodiment of the present utility model;
Accompanying drawing 2 is structural representations of second kind of embodiment of the present utility model;
Accompanying drawing 3 is structural representations of the third embodiment of the present utility model;
Accompanying drawing 4 is structural representations of the 4th kind of embodiment of the present utility model;
Accompanying drawing 5 is structural representations of the 5th kind of embodiment of the present utility model:
Accompanying drawing 6 be the of the present utility model the 4th and the A of the 5th kind of embodiment to view;
Accompanying drawing 7 is structural representations of the 6th kind of embodiment of the present utility model;
Accompanying drawing 8 is utilization structure figure of second kind of embodiment of the present utility model;
Accompanying drawing 9 is the of the present utility model the 4th or the use principle figure of the 5th kind of embodiment.
Five, embodiment:
In conjunction with the accompanying drawings, the utility model will be further described:
Its technical scheme is: be made up of milscale assembly 8, survey handle 1, fixation measuring device and digital display meter 7, wherein, milscale assembly one end is connected with the survey handle of band digital display meter, and the other end is connected and fixed measurement mechanism by lock screw 12; Described survey handle external fixation digital display table carrier base 5, be provided with fluting awl end holding screw 9,10 in the carrier base 5, survey the survey axle 2 that is provided with in the handle with the digital display meter interlock, milscale assembly and the bind mode of surveying between the handle can be varied, available interference fit connects, and also available screw attachment can also be made of one, specifically select any structure for use, convenient and guarantee that accuracy of instrument decides on adding two.。
Described survey handle inside is provided with elongated slot, is provided with the survey axle 2 with protruding jackscrew 4 in the elongated slot, and the end in elongated slot is provided with spring 6, and the outer end can also be provided with nut 3, is used for blocking the afterbody of surveying handle; Described jackscrew contact digital display meter 7, the described other end of surveying axle connects right table bar.The end of described fixation measuring device connects left-handed watch bar 12, the left-handed watch bar with survey handle in to show bar corresponding the right side of stretching out.Wherein, digital display meter can be digital display centimeter or clock gauge etc.
Described fixation measuring device can for the milscale structure with reference to each accompanying drawing, can not draw among the figure for other ruler measurement structure yet, promptly the fixation measuring part A can adopt other mode fixation measurings well known to those skilled in the art.
A kind of embodiment is: with reference to accompanying drawing 1, about the table bar can be the cylindrical end head, be the length precision measuring instrument.
Second kind of embodiment is: with reference to accompanying drawing 2, described left-handed watch bar can be the cylindrical end head, and right table bar is a hemispherical ends, is a kind of special-shaped precision measuring instrument.
The third embodiment is: with reference to accompanying drawing 3, described about the table bar can be hemispherical ends, be another kind of special-shaped precision measuring instrument.
The 4th kind of embodiment is: with reference to accompanying drawing 4,6, the left-handed watch bar can be the cylindrical end head, and right table bar can connect leveling ruler 14 and set nut 15, is the rotor precision measuring instrument.
The 5th kind of embodiment is: with reference to accompanying drawing 5,6, the left-handed watch bar can be hemispherical ends, and right table bar can connect leveling ruler 14 and set nut 15, is another kind of rotor precision measuring instrument.
The 6th kind of embodiment is: with reference to accompanying drawing 7, described about the table bar can distinguish fixed inner diameter and measure the termination, be the precisely measuring inner diameter instrument.
Use comprises (with reference to accompanying drawing 8 and 9): the one, adjust precision measuring instrument; The 2nd, the size of measurement precision component.
The one, adjust precision measuring instrument: turnbarrel 11, left-handed watch bar 12 move left and right, adjust size stem A, make the range of tail dimension B, rotational lock screw 13 less than digital display meter, left-handed watch bar 12 is fixing, measure the value of stem A, round numbers is noted, and digital display centimeter is made zero, and adjust precision measuring instrument and finish this moment; Certainly, to the less demanding part of measuring accuracy, can determine by vernier caliper or other conventional gauges; For the high part of dimension precision requirement, can determine by surveying rod.
The 2nd, the size of measurement precision component: left-handed watch bar 12 and survey axle 2 are blocked tested part, surveying axle 2 elastic force that overcome spring 6 moves right, jackscrew 4 moves with surveying axle in the elongated slot of surveying handle 1, jackscrew 4 contacts digital display centimeters 7 simultaneously, it is video data, data value is exactly the distance that jackscrew 4 moves, also be to survey axle 2 distances that move, be tail dimension B, the size value that obtains tested precision component like this is L=A+B, about the table bar divide cylindrical and hemispherical ends, the effect be different tested precision components 20, a kind of is the tested precision component 20 of plane and curved surface, during measurement with reference to accompanying drawing 8; A kind of is the tested precision component 21 of continuous curve surface, need to adopt the rotor precision measuring instrument, during measurement with reference to accompanying drawing 9.
Its principle of work is as follows: in machining, measure the size L of part, we can regard this size by two parts as and form, i.e. L=A+B.Definition A is a stem, and B is an afterbody.Adjust stem A value, make the range Q of the value of afterbody B, i.e. B<Q less than digital display centimeter or clock gauge.At this moment, the A value is fixing, digital display centimeter or clock gauge are made zero, measure the B value, measured size L=A+B.This principle is referred to as size and cuts apart principle.
For example, measure the size of a part, the design drawing size is Ф 58 ± 0.10, and the range of digital display centimeter is 10, stem A can be adjusted into 55 be fixed up (afterbody B is 3 ± 0.10) with surveying rod or vernier caliper, digital display centimeter is made zero, this expression, as long as when digital display centimeter shows zero, size value is exactly 55, if the digital display centimeter displayed value is 3.04, represent that then measured size is 55+3.04=58.04.
Utilize size to cut apart principle, can design difform precision measuring instrument, size in order to the part of measuring different geometries, for this reason, we design above-mentioned six kinds of schemes: length precision measuring instrument, precisely measuring inner diameter instrument, two kinds of rotor precision measuring instruments and two kinds of special-shaped precision measuring instruments.The length precision measuring instrument is mainly measured the length dimension of part, as cylindrical external diameter, and the length of side of rectangular parallelepiped etc.The precisely measuring inner diameter instrument is mainly measured the internal diameter of hole type parts, the internal diameter in the hole that processes on the part as the cylindrical internal diameter of hole class, Any shape etc.; The rotor precision measuring instrument is mainly measured the major axis of spiral part, as rotor etc., but the distance between the measurement space key element also; It is plane or curved surface that special-shaped precision measuring instrument can be measured an end, and the other end also is the distance between the part of plane or curved surface.Special-shaped precision measuring instrument divides two kinds of forms again, can survey the part of different structure shape.Therefore, theoretically, cut apart principle, can design the precision measuring instrument of unlimited a plurality of difformity structures, with the size of the part of measuring the different structure shape according to size.
The agent structure of precisely measuring inner diameter instrument and other five kinds have difference, and other five kinds all is compression spring when measuring, and the precisely measuring inner diameter instrument is a releasing spring when measuring; Left side measuring staff also rotates during other five kinds of measuring instrument turnbarrels, and precisely measuring inner diameter instrument left side measuring staff when turnbarrel is only made move left and right and do not rotated; Survey axle and survey the structure of handle also different, this is that shape by its measurement part determines.
In addition, the utility model can be measured the dispersion of accessory size in batches very easily.In the production of part in enormous quantities, each size all has tolerance, the processor will be the dimensioned of each part in margin tolerance, still, and different parts, his size is different, if the size point of all parts is drawn in the rectangular coordinate system, its curve is a normal distribution curve, according to tolerance range, can mark off certified products and unacceptable product, this also is a very loaded down with trivial details job.Utilize precision measuring instrument,, just can address this problem well.It can measure the in batches dispersion of part very easily, very simply marks off certified products, unacceptable product, even tells high-quality product, Grade A, goods of inferior quality and reworkable product.

Claims (10)

1, a kind of precision measuring instrument is characterized in that: be made up of milscale assembly, survey handle, fixation measuring device and digital display meter, wherein, milscale assembly one end is connected with the survey handle of band digital display meter, and the other end is connected and fixed measurement mechanism by lock screw; Described survey handle external fixation digital display table carrier base is surveyed the survey axle that is provided with in the handle with the digital display meter interlock.
2, precision measuring instrument according to claim 1 is characterized in that: described survey handle inside is provided with elongated slot, is provided with the survey axle with protruding jackscrew in the elongated slot, and the end in elongated slot is provided with spring; Described jackscrew contact digital display meter, the other end of described survey axle connects right table bar.
3, precision measuring instrument according to claim 1 is characterized in that: the end of described fixation measuring device connects the left-handed watch bar, the left-handed watch bar with survey handle in to show bar corresponding the right side of stretching out.
4, precision measuring instrument according to claim 3 is characterized in that: described fixation measuring device can be the milscale structure, also can be the ruler measurement structure; Described digital display meter can be digital display centimeter, also can be digital display dial gauge.
5, according to claim 2,3 or 4 described precision measuring instruments, it is characterized in that: the table bar can be the cylindrical end head about described.
6, according to claim 2,3 or 4 described precision measuring instruments, it is characterized in that: described left-handed watch bar can be the cylindrical end head, and right table bar is a hemispherical ends.
7, according to claim 2,3 or 4 described precision measuring instruments, it is characterized in that: the table bar can be hemispherical ends about described.
8, according to claim 2,3 or 4 described precision measuring instruments, it is characterized in that: the table bar can be distinguished fixed inner diameter measurement termination about described.
9, according to claim 2,3 or 4 described precision measuring instruments, it is characterized in that: described left-handed watch bar can be the cylindrical end head, and right table bar can connect leveling ruler and set nut.
10, according to claim 2,3 or 4 described precision measuring instruments, it is characterized in that: described left-handed watch bar can be hemispherical ends, and right table bar can connect leveling ruler and set nut.
CN 200620085297 2006-06-03 2006-06-03 Precision measurement instrument Expired - Fee Related CN2914030Y (en)

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Application Number Priority Date Filing Date Title
CN 200620085297 CN2914030Y (en) 2006-06-03 2006-06-03 Precision measurement instrument

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102538629A (en) * 2012-02-18 2012-07-04 徐州工业职业技术学院 Device and method for measuring width accuracy of shaft key slot and hole key slot
CN102798331A (en) * 2011-05-24 2012-11-28 鸿富锦精密工业(深圳)有限公司 Device for detecting stress deformation value
CN103376192A (en) * 2012-04-19 2013-10-30 鸿富锦精密工业(深圳)有限公司 Spring detection device
CN103438791A (en) * 2013-07-31 2013-12-11 上海特安一凯轴承有限公司 Ball bearing channel curvature radius gauge
CN103557768A (en) * 2013-10-25 2014-02-05 无锡富瑞德精密机械有限公司 Measuring bar type width gauge
CN107063047A (en) * 2017-06-07 2017-08-18 蒋英凯 A kind of outside dimension accurately measures device
CN108195256A (en) * 2018-04-11 2018-06-22 湖南南方宇航高精传动有限公司 A kind of big specification lightweight high-precision dial framework

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102798331A (en) * 2011-05-24 2012-11-28 鸿富锦精密工业(深圳)有限公司 Device for detecting stress deformation value
CN102538629A (en) * 2012-02-18 2012-07-04 徐州工业职业技术学院 Device and method for measuring width accuracy of shaft key slot and hole key slot
CN103376192A (en) * 2012-04-19 2013-10-30 鸿富锦精密工业(深圳)有限公司 Spring detection device
CN103438791A (en) * 2013-07-31 2013-12-11 上海特安一凯轴承有限公司 Ball bearing channel curvature radius gauge
CN103438791B (en) * 2013-07-31 2015-08-05 上海特安一凯轴承有限公司 Ball bearing Contact stress measuring instrument
CN103557768A (en) * 2013-10-25 2014-02-05 无锡富瑞德精密机械有限公司 Measuring bar type width gauge
CN103557768B (en) * 2013-10-25 2016-07-06 无锡富瑞德测控仪器股份有限公司 A kind of measuring bar type width gauge
CN107063047A (en) * 2017-06-07 2017-08-18 蒋英凯 A kind of outside dimension accurately measures device
CN108195256A (en) * 2018-04-11 2018-06-22 湖南南方宇航高精传动有限公司 A kind of big specification lightweight high-precision dial framework

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070620