CN203744883U - Chamfer length universal gauge - Google Patents

Chamfer length universal gauge Download PDF

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Publication number
CN203744883U
CN203744883U CN201420032241.XU CN201420032241U CN203744883U CN 203744883 U CN203744883 U CN 203744883U CN 201420032241 U CN201420032241 U CN 201420032241U CN 203744883 U CN203744883 U CN 203744883U
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China
Prior art keywords
chamfering
clamp
scale clamp
scale
clamping plate
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CN201420032241.XU
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Chinese (zh)
Inventor
徐龙
梅颖
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Chengdu Aircraft Industrial Group Co Ltd
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Chengdu Aircraft Industrial Group Co Ltd
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Abstract

The utility model discloses a chamfer length universal gauge, which comprises an upper ruler clamping plate and a lower ruler clamping plate with the thickness being at least 1.5mm. The chamfer length universal gauge is characterized in that positioning holes connected through a rotating shaft pin are prepared at the vertex of an interior angle formed when fixed ends of the upper ruler clamping plate and the lower ruler clamping plate are intersected, the positioning holes are located at the vertex of the interior angle of an intersection point of the upper ruler clamping plate and the lower ruler clamping plate, and a scale value corresponding to the center of the positioning holes is zero. The chamfer length universal gauge solves problems of low efficiency and inaccurate detection brought about by requirements of trigonometric function calculation and a help of auxiliary tool measurement in conventional chamfer length detection and a problem of high cost in chamfer length measurement by using a numerical control machine by adopting a quick and efficient fast positioning and measuring mode.

Description

The general amount cubing of chamfering length
Technical field
The utility model relates to a kind of pick-up unit mainly for detection of chamfering part chamfering length scale.
Technical background
Chamfering is a modal processing content in machining.Usually can run into the chamfering part with chamfering length structure.Chamfering angle size generally refers to the length of right-angle side.The size note method of GB4484.4-1984 version, wherein the note method of regulation chamfering 45 degree is 1X45 °, the tolerance of pressing 1X45 ° of chamfering of m level is ± 1 °, and non-45 ° of chamferings, by standard mark angle and angle direction depth dimensions, as 30 °, dark 1.6mm, size can be by GB1804, and GB1804 has stipulated chamfering tolerance specially, only stipulate size class, but do not stipulated the chamfering of note angle.Because the variation of chamfering position causes the variation of its scale error, if check the tolerance issues of 30 ° of chamferings to be difficult to solve.Such as diameter only has 0.7mm, chamfering be 0.3+01x45 ", require to measure with three coordinate measuring machine the actual length of side of aperture depth of chamfering direction, error is less than 0.1mm.The Major Difficulties of measuring is: 1. the aperture chamfering length of side is too little, and general gauge head cannot be measured; On the inwall of little Hole chamfering in blind hole depths, do not observe, survey cephalomotor space very little, give to measure to operate and cause very large difficulty.Above-mentioned measurement problem is obviously helpless with traditional measuring method and gauge head annex.The chamfer dimesion of Measurement and analysis axial workpiece is more difficult measurement generally, although measured size is all linear dimension, but the position of cusp that in measured size, an other measuring junction of two sizes is chamferings, is used common survey instrument and measuring method to be difficult to accurately measure like this.
Its architectural feature of machining chamfering is divided into two types conventionally: a class is to make its sharp edge smooth, and chamfering does not have accuracy requirement, prevents the deburring chamfering mutually scratching between parts in handling process.Another kind of is the installation guiding chamfering that coordinates parts, and such chamfering has accuracy requirement, has certain matching relationship in assembling process, and this class chamfering is generally less than 2-4 °.Such chamfering length needs to measure, to guarantee its correctness in engagement process.In carrying out the processes such as product processing, check, often need to measure chamfering length or arc radius/diameter.Due to these data off-gauge straight-line displacement, its null position is difficult to determine, therefore with current universal measurement instrument, is difficult to directly it be measured.The method of measuring at present chamfering length mainly contains numerical control chamfering linear measure longimetry method and conventional chamfering linear measure longimetry method.Conventional chamfering linear measure longimetry method is generally that the total length of first measuring both sides is measured the distance at chamfering place again, and the circular arc of two measurements can only be individual general, inaccurate.Numerical control chamfering linear measure longimetry method is that chamfering length face is measured as the external surface of chamfering part.Adopt chi base, digital display assembly and calibration block three parts to form digital display rule.Chi base is by contacting to realize measurement with 3 of testees; Digital display assembly is comprised of displacement transducer and single-chip microcomputer, by single-chip microcomputer, the measurement data of displacement transducer is measured, but also will be according to manufacturing and designing requirement, the tolerance that provides chamfering is all length and angle tolerance, and the tolerance that measurement chamfering length face provides need draw through trigonometric function conversion, so just that simple question is complicated.Utilize numerically controlled measuring machine to measure chamfering length cost high, detection efficiency is not high yet.Conventional chamfering length detection method is generally to adopt shown in Fig. 3, with pit gauge, to measure length dimension and bevel protractor takes measurement of an angle (80 ° of the angles in figure), and then by the computing of trigonometric function, draw design to chamfering length dimension.The method often need to be extended and measures limit or by extension, measure limit and find virtual intersection point to measure by aid.Reviewer operates cumbersome, and accuracy is lower, and efficiency is extremely low.In actual measurement process, chamfering length, arc radius are off-gauge straight-line displacement, cannot determine their null position, so how to confirm null position, and according to the measurement of this null position accomplish linear displacement, and then realization is the key point of this problem to the measurement of chamfering length, arc radius.
Summary of the invention
The purpose of this utility model is the weak point existing for above-mentioned existing detection method, provides a kind of simple in structure, easy to operate, quick, efficient, applied widely, general auxiliary detection device that can Measurement accuracy chamfering two edge lengths.
The utility model solves the technical scheme that its technical matters adopts: the general amount cubing of a kind of chamfering length, comprise upper scale clamp and lower scale clamp that at least 1.5mm is thick, it is characterized in that, within the stiff end of upper scale clamp and lower scale clamp intersects in angular vertex, be shaped with the pilot hole connecting by roller pin, pilot hole is positioned in the angular vertex of scale clamp and lower scale clamp intersection point, and scale value corresponding to pilot hole center is 0.
Utility model has following beneficial effect than prior art.
The utility model is by the upper scale clamp with scale value and the lower scale clamp chamfering part chamfering length to be measured both sides of fitting, the reading that reads respectively upper and lower scale clamp draws the length of chamfering, simple in structure, easy to operate, location fast, efficiency is high, cost is low, applied widely.The detection that the combination of upper scale clamp and lower scale clamp can meet conventional different chamfering length values and common dissimilar, the different detection of all chamfering length scale on big or small chamfering part.
The utility model is a kind of location survey mode rapidly and efficiently, detects simple and convenient, quick and precisely, has saved testing cost.Having solved conventional sense chamfering length need to calculate and the efficiency that need to bring by aid measurement is low and detect inaccurate problem and numerically controlled measuring machine is measured the high problem of chamfering length cost by trigonometric function.
Accompanying drawing explanation
Fig. 1 is the length detection schematic diagram of the general amount cubing of the utility model chamfering length.
Fig. 2 is the decomposing schematic representation of Fig. 1.
Fig. 3 is the schematic diagram of the conventional chamfering linear measure longimetry of prior art method.
In figure: 1 chamfering part, 2 times scale clamp locating holes, 3 times scale clamp relief grooves, 4 times scale clamps, scale clamp locating hole on 5, scale clamp relief groove on 6, scale clamp on 7,8 roller pin.
Embodiment
Consult Fig. 1, Fig. 2.The general amount cubing of chamfering length of describing in following examples, is combined by upper scale clamp 7 and lower scale clamp 4.Mainly comprise upper scale clamp and a lower scale clamp that at least 1.5mm is thick.It is the scale value of 1mm and all with pilot hole and the relief groove of a cooperation use that upper scale clamp 7 and lower scale clamp 4 are carved with respectively precision.Pilot hole 2 on upper scale clamp locating hole 5 and lower scale clamp is prepared on scale clamp relief groove 6 and lower scale clamp relief groove 3 elbows.Roller pin 8 is intersected and is connected to upper scale clamp 7 and the interior angular vertex of lower scale clamp 4 inner side by upper scale clamp locating hole 5 and lower scale clamp locating hole 2.After upper and lower scale clamp combination, the prolongation line end of inner side edge is through center, pilot hole hole, and scale value corresponding to Qie Kong center is 0.Upper scale clamp and lower scale card inner side edge intersection point are positioned at the axle center of roller pin 8.On plate, scale clamp and the lower scale clamp both sides of chamfering part 1 chamfering length of fitting respectively, by reading the scale value of upper scale clamp and lower scale clamp, just can draw the length value of chamfering.Before detection, by this universal detection device near the chamfering part to be measured 1 tested limit of chamfering two, fit the respectively both sides of chamfering part length of scale clamp 7 and 4 liang of inner sides of lower scale clamp, by reading scale value corresponding to chamfering part seamed edge on upper and lower scale clamp, can determine the chamfering length of this chamfering part 1.
The general available chamfering length L=2XR=of chamfering length mathematical relation (2+1) XD=2R=2 (2+1) X, X is variable straight-line displacement (chamfering circular arc summit is to the distance between two tangent line joinings of chamfering circular arc), D is chamfering circular arc/diameter, and R is chamfering circular arc radius.Because this null position is fixed, the null position of straight-line displacement X is not difficult to determine.

Claims (4)

1. the general amount cubing of chamfering length, comprise upper scale clamp and lower scale clamp that at least 1.5mm is thick, it is characterized in that, it is the scale value of 1mm and all with pilot hole and the relief groove of a cooperation use that upper scale clamp (7) and lower scale clamp (4) are carved with respectively precision, within the stiff end of upper scale clamp and lower scale clamp intersects in angular vertex, be shaped with the pilot hole connecting by roller pin, pilot hole is positioned in the angular vertex of scale clamp and lower scale clamp intersection point, and scale value corresponding to pilot hole center is 0.
2. the general amount cubing of chamfering length as claimed in claim 1, is characterized in that: the pilot hole (2) on upper scale clamp locating hole (5) and lower scale clamp is prepared on scale clamp relief groove (6) and lower scale clamp relief groove (3) elbow.
3. the general amount cubing of chamfering length as claimed in claim 1, is characterized in that: upper scale clamp and lower scale card inner side edge intersection point are positioned at the axle center of roller pin 8.
4. the general amount cubing of chamfering length as claimed in claim 1, is characterized in that: chamfering length L=2XR=(2+1) XD=2R=2 (2+1) X, and X is variable straight-line displacement, and D is chamfering circular arc diameter, and R is chamfering circular arc radius.
CN201420032241.XU 2014-01-18 2014-01-18 Chamfer length universal gauge Active CN203744883U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420032241.XU CN203744883U (en) 2014-01-18 2014-01-18 Chamfer length universal gauge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420032241.XU CN203744883U (en) 2014-01-18 2014-01-18 Chamfer length universal gauge

Publications (1)

Publication Number Publication Date
CN203744883U true CN203744883U (en) 2014-07-30

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CN201420032241.XU Active CN203744883U (en) 2014-01-18 2014-01-18 Chamfer length universal gauge

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106052521A (en) * 2016-06-16 2016-10-26 中车戚墅堰机车车辆工艺研究所有限公司 Auxiliary checking fixture
CN111650880A (en) * 2020-05-15 2020-09-11 成都飞机工业(集团)有限责任公司 Programming method for batch creation of deburring tool path based on UG/NX

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106052521A (en) * 2016-06-16 2016-10-26 中车戚墅堰机车车辆工艺研究所有限公司 Auxiliary checking fixture
CN106052521B (en) * 2016-06-16 2018-12-07 中车戚墅堰机车车辆工艺研究所有限公司 A kind of auxiliary detection tool
CN111650880A (en) * 2020-05-15 2020-09-11 成都飞机工业(集团)有限责任公司 Programming method for batch creation of deburring tool path based on UG/NX
CN111650880B (en) * 2020-05-15 2022-01-25 成都飞机工业(集团)有限责任公司 Programming method for batch creation of deburring tool path based on UG/NX

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