CN103557831B - A kind of device and method of on-line checkingi differential carrier cross shaft hole symmetry - Google Patents

A kind of device and method of on-line checkingi differential carrier cross shaft hole symmetry Download PDF

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Publication number
CN103557831B
CN103557831B CN201310569323.8A CN201310569323A CN103557831B CN 103557831 B CN103557831 B CN 103557831B CN 201310569323 A CN201310569323 A CN 201310569323A CN 103557831 B CN103557831 B CN 103557831B
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China
Prior art keywords
positioning core
core axle
hole
meter
cross shaft
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CN103557831A (en
Inventor
陈结慧
王即武
张文佳
辛磊磊
刘慧�
陈俊英
张其宝
席长民
刘德福
孙久贵
聂涛
张超
李鹏
张怀霞
姚强
王厚勇
李建超
李亚飞
张�浩
韩树
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China National Heavy Duty Truck Group Jinan Power Co Ltd
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China National Heavy Duty Truck Group Jinan Power Co Ltd
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Abstract

The invention discloses a kind of device and method of on-line checkingi differential carrier cross shaft hole symmetry, its device by positioning core axle and supplemental support, measure gauge outfit, verify height block, gib screw etc. form.This device obtains standard value by using checking height block his-and-hers watches, then product is detected and obtain measurement data in real time, realize the on-line measurement to product symmetry, must height gage be utilized to measure to three-dimensional or platform workpiece handling when solving measurement and many waste problems such as manpower, time, carrying of causing, improve the qualification rate that rolls off the production line of production efficiency and product.The present invention have be skillfully constructed, compact conformation, with low cost, easy to operate, energy-conserving and environment-protective, the feature such as practical.

Description

A kind of device and method of on-line checkingi differential carrier cross shaft hole symmetry
Technical field
The present invention relates to a kind of device and the measuring method that directly can measure cross shaft hole symmetry.
Background technology
Differential mechanism is the vitals of automobile, and the structure of its housing and processing precision direct influence are to the serviceability of differential mechanism.Differential carrier require higher for the symmetry of four axis holes installing joint spider, if there is deviation in production run, in differential mechanism process, be difficult to Timeliness coverage, axle assembly assembles and even can cause planetary gear unbalance stress in commissioning process, causes differential assembly to lose efficacy.Once there are differential assembly parts quality problems, just axle assembly must be disassembled and detect, reprocess qualified just to ressemble afterwards.Therefore, on-the-spot to cross shaft hole make measure timely and effectively of crucial importance.At present, the measurement of the cross shaft hole symmetry of differential assembly is generally realized by two kinds of modes: one is that operator stops producing, and utilizes height gage measurement data to verify the processing result of workpiece workpiece handling to platform; The second be operator by workpiece handling to three-dimensional, detected by three-dimensional.No matter be platform measuring or three-dimensional coordinates measurement, all have a strong impact on productive temp and measure efficiency, cause the waste of manpower, time carrying.Because above-mentioned two kinds of detection meanss all cannot realize 100% on-line measurement, easily cause bulk quality accident.
Summary of the invention
The technical problem to be solved in the present invention is: obtain standard value by using checking height block his-and-hers watches, product is detected and obtains measurement data in real time, realize the on-line measurement to product symmetry, thus solve differential spider hole symmetry and measure the time manpower that workpiece handling must be detected to three-dimensional or utilize to platform height gage to measure and cause and waste, 100% on-line measurement cannot be realized easily cause the problems such as bulk quality accident, while ensureing product quality, substantially increase production efficiency.
For solving the problem, the technical scheme that the present invention takes is as follows:
A kind of device of on-line checkingi differential carrier cross shaft hole symmetry, comprise checking height block, positioning core axle and the meter of " L " type, the sidewall of the vertical direction of checking height block is provided with a pilot hole I, and described positioning core axle realizes the location of horizontal direction by pilot hole I; Positioning core axle is provided with a pilot hole II, and described meter is through the pilot hole II on positioning core axle.
Fixed by screw between described meter and positioning core axle.
Concrete measuring method is as follows:
Step 1, makes positioning core axle:
1-1, under 30mm bar, overall length controls at 40mm;
1-2, by one end car of positioning core axle extremely 27.55mm and be milled to 27.50mm, ensures the length 20mm of positioning core axle;
1-3, clamping another end mill of positioning core axle to thickness is 10mm by the cylindrical of 27.50mm;
1-4, at 10mm one end centre drill the through hole of 8mm;
1-5, to bore in outer face M5 threaded hole with 8mm through hole is through;
1-6, gauge outfit is installed in 8mm through hole, fixes with M5 bolt;
Step 2. verifies the making of height block:
Get 50mm round steel, with scroll chuck clamping in vertical machining centre, processing thickness, to 20mm, is processed apart from transverse center position, 49mm place, lower surface 27.523 hole;
Step 3 measures cross shaft hole symmetry:
The gauge head of meter is inserted positioning core axle upper surface in 8mm through hole, be fixed with M5 screw; Positioning core axle, meter are combined by gib screw, define a depth survey pin;
The positioning core axle of depth survey pin is coordinated with checking height block pilot hole, by the gauge head of gib screw adjustment meter, ensures that the gauge head of meter contacts with checking height block bottom surface, press-in 0.5mm;
Tighten screw gauge outfit is fixed, then table is reset.Now, be deep in the cross shaft hole of differential carrier with depth survey pin, read the reading in table, and then the symmetry of cross shaft hole is evaluated intuitively.
Described checking height block, is made by machine work turning, drilling and boring, and highly the pilot hole of checking block is used for simulate ideal differential spider hole, grade of tolerance execution H8.The distance of pilot hole center and checking block bottom surface is for simulating the ideal distance of differential mechanism cross shaft hole and follower circle end face, and allowance control is at ± 0.01mm.
Described positioning core axle and supplemental support are made by machine work turning, grinding and drilling.Positioning core axle requires there is higher tolerance fit (H8/h6) with pilot hole.Supplemental support thickness 10mm, end face centre position is bored thereon 8 through holes, bore M5 threaded hole in its front end face centre position, and with 8mm hole is through.
Described meter and screw all use common survey gauge outfit and common M5 screw.
Innovative point of the present invention: breach the difficult problem utilizing three-dimensional or platform measuring cannot realize on-line checkingi; Compared with platform measuring, the present invention is skillfully constructed, and compact conformation is easy to operate, with low cost and usability is strong.
The invention has the beneficial effects as follows:
Realize the on-line measurement to differential spider hole symmetry, avoid manpower, waste of time problem that workpiece handling to three coordinate or platform measuring cause by operator, ensure that productive temp, improve measurement efficiency; Meanwhile, owing to present invention achieves 100% on-line measurement to differential spider hole symmetry, thus improve the qualification rate that once rolls off the production line of product; The present invention has promotional value widely, and the differential design of different product has similarity, only need revise the size of positioning core axle and checking block, just can detect the differential spider hole symmetry of different product.
Accompanying drawing explanation
Fig. 1 is the overall construction drawing of this invention;
Fig. 2 is the measurement main structure chart of this invention;
Fig. 3 is the positioning core axle structural drawing of this invention;
Fig. 4 is the checking height block structural diagram of this invention;
In figure: 1, positioning core axle; 2, meter; 3, checking height block; 4, screw;
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail:
A kind of device of on-line checkingi differential carrier cross shaft hole symmetry, comprise checking height block 3, positioning core axle 1 and the meter 2 of " L " type, the sidewall of the vertical direction of checking height block 3 is provided with a pilot hole I, and described positioning core axle realizes the location of horizontal direction by pilot hole I; Positioning core axle is provided with a pilot hole II, and described meter is through the pilot hole II on positioning core axle.Fixed by screw 4 between described meter and positioning core axle.
Detailed process is as follows:
1) first, make cubing main body---positioning core axle, making step is as follows: 1,1, under 30 bars, overall length controls at 40mm; 2, one end car extremely 27.55 and be milled to 27.50, ensure length 20mm; 3, clamp another end mill to thickness is 10mm by the cylindrical of 27.50; 4, at 10mm one end centre drill the through hole of 8; 5, bore in outer face M5 threaded hole with 8 through holes are through; 6, exist gauge outfit is installed in 8 through holes, fixes with M5 bolt.
2) making of block is verified: get 50 round steel, with scroll chuck clamping in vertical machining centre, processing thickness, to 20mm, is processed apart from transverse center position, 49mm place, lower surface 27.523 hole.
3) using method: meter gauge head is inserted supplemental support upper surface in 8 through holes, be fixed with M5 screw.Positioning core axle and supplemental support 1, measure gauge outfit 2 and combined by gib screw 4, define a depth survey pin.The positioning core axle 1 of depth survey pin is coordinated with checking height block pilot hole, adjusts gauge head by gib screw, ensure that measuring gauge outfit contact contacts with checking height block bottom surface, press-in 0.5mm.Tighten screw gauge outfit is fixed, then table is reset.Now, be deep in the cross shaft hole of differential carrier with depth survey pin, read the reading in table, and then the symmetry of cross shaft hole is evaluated intuitively.
4) the result: by utilizing this cubing to carry out on-line checkingi to product, carry out contrast verification with three-dimensional coordinates measurement result, both measurement result consistance, within 0.01 scope, meet the accuracy of detection requirement of cross shaft hole symmetry 0.1mm.

Claims (3)

1. the device of an on-line checkingi differential carrier cross shaft hole symmetry, it is characterized in that: the checking height block, positioning core axle and the meter that comprise " L " type, the sidewall of the vertical direction of checking height block is provided with a pilot hole I, and described positioning core axle realizes the location of horizontal direction by pilot hole I; Positioning core axle is provided with a pilot hole II, and described meter is through the pilot hole II on positioning core axle;
Pilot hole I and the differential carrier cross shaft hole tolerance fit of described checking height block, the distance tolerance fit of the center of pilot hole I and checking highly block bottom surface distance and differential carrier cross shaft hole and follower circle end face.
2. device as claimed in claim 1, be is characterized in that: fixed by screw between described meter and positioning core axle.
3. the measuring method of the differential carrier cross shaft hole symmetry of device as claimed in claim 1, is characterized in that, comprise the following steps:
Step 1, makes positioning core axle:
1-1, under bar, overall length equals 40mm;
1-2, by one end car of positioning core axle extremely and be milled to ensure the length 20mm of positioning core axle;
1-3, clamping cylindrical, be 10mm by another end mill of positioning core axle to thickness;
1-4, at 10mm one end centre drill through hole;
1-5, to bore in outer face M5 threaded hole with through hole is through;
1-6, gauge outfit is installed in through hole, fixes with M5 screw;
Step 2. verifies the making of height block:
Get round steel, with scroll chuck clamping in vertical machining centre, will the block of shape that round steel is processed into " L ", the processing thickness of block is 20mm, apart from the processing of transverse center position, 49mm place, lower surface hole;
Step 3 measures cross shaft hole symmetry:
The gauge head of meter is inserted positioning core axle upper surface in through hole, be fixed with M5 screw;
Positioning core axle, meter by M5 screw association together, define a depth survey pin;
The positioning core axle of depth survey pin is coordinated with checking height block pilot hole, by the gauge head of M5 screw adjustment meter, ensures that the gauge head of meter contacts with checking height block bottom surface, press-in 0.5mm;
Tighten M5 screw gauge outfit is fixed, then meter is reset; Now, depth survey pin is used one end is deep in the cross shaft hole of differential carrier, reads the reading in meter.
CN201310569323.8A 2013-11-15 2013-11-15 A kind of device and method of on-line checkingi differential carrier cross shaft hole symmetry Active CN103557831B (en)

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Application Number Priority Date Filing Date Title
CN201310569323.8A CN103557831B (en) 2013-11-15 2013-11-15 A kind of device and method of on-line checkingi differential carrier cross shaft hole symmetry

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Application Number Priority Date Filing Date Title
CN201310569323.8A CN103557831B (en) 2013-11-15 2013-11-15 A kind of device and method of on-line checkingi differential carrier cross shaft hole symmetry

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CN103557831B true CN103557831B (en) 2016-03-30

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201145562Y (en) * 2008-01-24 2008-11-05 力邦测控设备(洛阳)有限公司 Synthetic automatic measuring instrument for measuring differential carrier
CN201974150U (en) * 2011-03-31 2011-09-14 桂林福达曲轴有限公司 Tool for detecting symmetry degree of key slot crankshaft of automobile engine
CN102200420A (en) * 2010-07-20 2011-09-28 万向钱潮股份有限公司 Position detector for differential mechanism spider and detecting method thereof
CN201993081U (en) * 2010-12-14 2011-09-28 上海华普汽车模具制造有限公司 Automobile sheet metal part surface difference testing fixture
CN102944165A (en) * 2012-11-15 2013-02-27 沈阳洪达信息科技有限公司 Verticality symmetry inspection tool of differential shell
CN203116672U (en) * 2012-12-25 2013-08-07 青特集团有限公司 Convenient-type measuring device used for online monitoring
CN203216434U (en) * 2013-05-15 2013-09-25 丹阳市万隆铸造有限公司 Meter used for measuring depth of step hole

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201145562Y (en) * 2008-01-24 2008-11-05 力邦测控设备(洛阳)有限公司 Synthetic automatic measuring instrument for measuring differential carrier
CN102200420A (en) * 2010-07-20 2011-09-28 万向钱潮股份有限公司 Position detector for differential mechanism spider and detecting method thereof
CN201993081U (en) * 2010-12-14 2011-09-28 上海华普汽车模具制造有限公司 Automobile sheet metal part surface difference testing fixture
CN201974150U (en) * 2011-03-31 2011-09-14 桂林福达曲轴有限公司 Tool for detecting symmetry degree of key slot crankshaft of automobile engine
CN102944165A (en) * 2012-11-15 2013-02-27 沈阳洪达信息科技有限公司 Verticality symmetry inspection tool of differential shell
CN203116672U (en) * 2012-12-25 2013-08-07 青特集团有限公司 Convenient-type measuring device used for online monitoring
CN203216434U (en) * 2013-05-15 2013-09-25 丹阳市万隆铸造有限公司 Meter used for measuring depth of step hole

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