CN109029204A - Body mistake face dimension measuring device and method - Google Patents
Body mistake face dimension measuring device and method Download PDFInfo
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- CN109029204A CN109029204A CN201811222224.1A CN201811222224A CN109029204A CN 109029204 A CN109029204 A CN 109029204A CN 201811222224 A CN201811222224 A CN 201811222224A CN 109029204 A CN109029204 A CN 109029204A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000005259 measurement Methods 0.000 claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 238000012937 correction Methods 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 6
- 238000000691 measurement method Methods 0.000 claims description 6
- 230000000875 corresponding effect Effects 0.000 claims description 5
- 239000004579 marble Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
Present invention is mainly applied to diesel engine part detection fields, in particular to a kind of body mistake face dimension measuring device and method, including surveyors' staff, parallel flat and contour gauge block, surveyors' staff includes measuring rod, and fixed dial framework and movable dial framework are installed in measuring rod both ends respectively, and slideway is arranged in corresponding movable dial framework on measuring rod, table measuring head is installed on fixed dial framework, dial gauge is installed, contour gauge block is set as cylinder gauge block, and measuring rod, table measuring head and dial gauge are arranged in parallel on movable dial framework.Body mistake face dimension measuring device uses the detection method of relative measurement, and have followed the four big abbe's principles for measuring one of basic principles, the direct measurement of seam allowance and body Hough face length dimension in achievable machine body cylinder sets of holes, its measurement accuracy is high, it is fast to detect speed, scene can examined directly to use, fill up the blank of measuring technique in this respect, on probation in processing workshop, effect is ideal.
Description
Technical field
The present invention relates to a kind of body mistake face dimension measuring device and methods, are mainly used in diesel engine part detection neck
Domain.
Background technique
Body is one of diesel engine most critical components, there is the title of diesel engine skeleton, and internal body is machined with cylinder sets of holes
With the critical sizes such as main bearing hole.Cylinder jacket is housed, the lower seam allowance end face installation at the top of cylinder jacket inside the cylinder sets of holes of body
On the upper seam allowance of machine body cylinder sets of holes, the main bearing hole of body is then made of bearing block and bearing cap two parts, and inside is equipped with
Upper and lower main bearing shell and crankshaft group, bottom bracket are in contact with bearing cap and the position divided in main bearing hole are known as body
Hough face.
By taking Z170 diesel-engine body as an example, seam allowance is with body Hough face length dimension tolerance in the cylinder sets of holes of body
614+0.10 0, it is the most important technical parameter requirement of diesel engine which, which determines the height and area of burning chamber of diesel engine,
One of.It is required according to Q/ZC29B " by batch selective examination attributed sampling regulation ", full inspection should be carried out to the length dimension tolerance.Cause
The length dimension 614 of seam allowance and body Hough face in Z170 cylinder sets of holes+0.10 0For wrong face size, it is measured axis and metering
The measuring basis axis of utensil is not on same straight line, produces dislocation, can only be using indirect during actual measurement
The method of measurement detects, and the low measurement error of production efficiency is big.
Summary of the invention
The technical problem to be solved by the present invention is providing, a kind of measurement accuracy is high, and detection speed is fast, can examine scene
The body mistake face dimension measuring device and method directly used.
Body mistake of the present invention face dimension measuring device, including surveyors' staff, parallel flat and contour gauge block, measurement
Scale includes measuring rod, and fixed dial framework and movable dial framework, corresponding movable dial framework setting on measuring rod are installed in measuring rod both ends respectively
Slideway is fixed and installs table measuring head on dial framework, installs dial gauge on movable dial framework, and contour gauge block is set as cylinder gauge block, measurement
Bar, table measuring head and dial gauge are arranged in parallel.
The contour gauge block is set as three.
The parallel flat is set as strip plate, and the upper and lower ends of parallel flat, which are respectively set, passes through slot.
The measuring rod is set as seamless steel tube body, and measuring rod corresponds to the radial through hole of fixation table frame setting, fixed
Dial framework and movable dial framework pass through nut and measuring rod fastens.
Body mistake of the present invention face dimension measurement method, it is characterised in that following steps:
One, completes the zero-bit check and correction of measuring device in measuring room:
(1) taking out algnment accuracy grade is 0 grade of 3 gauge blocks, with dehydrated alcohol wiped clean, and is ground together with, shape
At standard-sized combined gauges, it is placed in the marble platform that measuring room accuracy class is 0 grade；
(2) the table measuring head of body mistake face dimension measuring device and one end point contact of combined gauges are used, measuring device
The gauge outfit of other end dial gauge and the other end point contact of combined gauges find the most short feedback of dial gauge indicator by constantly repeating
The method of point completes the zero-bit check and correction of measuring device dial gauge；
(3) indicator of dial gauge is directed toward zero-bit at this time；
Two, complete the detection of wrong face size using relative measurement and detection method measured directly in working site:
(1) by seam allowance in the cylinder sets of holes of body and body Hough face, flash removed is removed, it is net with clean towel,
And it is clean with wind, meanwhile, take out three contour gauge blocks and parallel flat, and with dehydrated alcohol wiped clean；
(2) Hough of body is placed upwardly, the arrangement mode of isosceles triangle is pressed on the Hough face of body, placed
Three contour gauge blocks place parallel flat on three contour gauge blocks；
(3) with seam allowance point contact, the gauge outfit of the other end dial gauge of measuring device in table measuring head and machine body cylinder sets of holes
Percentage is read by constantly repeating the method for finding the most short feedback point of dial gauge indicator with the upper plane point contact of parallel flat
The detection of wrong face size can be rapidly completed in deviation of the indicator of table relative to zero-bit.
The invention has the following advantages that
A. the abbe's principle for having used one of four big measurement basic principles is followed for the first time.
Three contour gauge blocks are placed in isosceles triangle first on the Hough face of body, are placed on 3 contour gauge blocks
Parallel flat, to make the measuring basis axis of measured axis and measurement instrument be on collinear extended line, then
Seam allowance and parallel flat in machine body cylinder sets of holes are completed with the detection method of relative measurement with body mistake face dimension measuring device
The detection of wrong face size can be completed in deviation of the length dimension of upper plane relative to zero-bit.
Abbe's principle is exactly a very important design principle in Instrument Design, classic abbe's principle be Abbe in
The guiding principle of the measuring instrument design proposed for 1890.He says: " if measurement has provided accurate measurement result, it must
Measured piece must be arranged in reference element along the extended line of the direction of motion ".
B. body mistake face dimension measuring device uses the detection method of relative measurement.
With the length dimension 614 of seam allowance and body Hough face in Z170 cylinder sets of holes+0.10 0For wrong face size, counting
It measures in the marble platform of 0 grade of room, uses 600,50 and 4 combined gauges for being combined into 654mm as standard volume, then use body mistake face
Dimension measuring device is standard volume with combined gauges in 0 grade of marble platform, finds dial gauge indicator most by constantly repeating
The method of short feedback point completes the zero-bit check and correction of measuring device dial gauge.It is filled after good zero-bit, then with the face dimensional measurement of body mistake
Deviation of the length dimension of plane on seam allowance and parallel flat on detection body cylinder jacket hole relative to standard volume is set, it can be complete
At the detection of dimensional tolerance.
C. body mistake face dimension measuring device uses detection method measured directly.
By taking Z170 diesel-engine body as an example, to dimensional tolerance 614+0.10 0Using the method measured indirectly, i.e., detection is originally
Upper mounting plate detects body top surface to body Hough identity distance from then subtracting the depth of seam allowance in machine body cylinder sets of holes with height gauge
Size production efficiency is low, and measurement error is big.The application of body mistake face dimension measuring device can use detection side measured directly
Method completes the detection of wrong face size.
D. the assembly of three contour gauge blocks and parallel flat is arranged in reference element along the extended line of the direction of motion,
To make the measuring basis axis for being measured axis and measurement instrument be on collinear extended line, construction is conformed exactly to
Abbe's principle.Three contour gauge block height dimensions are consistent, and are theoretically exact dimension 10mm, the rough surface of upper and lower surface
Degree is Ra0.1, and the flatness on two sides is not more than 0.002mm, and the parallelism error between two sides is not more than 0.002mm, three etc.
High gauge block is arranged on the Hough face of body in isosceles triangle.Parallel flat is placed on three contour gauge blocks, and parallel flat has
Higher precision, the parallelism error of upper and lower surface are less than 0.005mm, and flatness error is less than 0.003mm, surface roughness
For Ra0.2, with a thickness of theoretically exact dimension 30mm.
E. the utilization of the contact form of point contact.
The contact site of seam allowance is spherical shape in table measuring head and machine body cylinder sets of holes, and contact form is point contact, is convenient for
The most short feedback point of dial gauge indicator is found in measurement process.
The beneficial effects of the present invention are:
Body mistake face dimension measuring device uses the detection method of relative measurement, and has followed four big measurement basic principles
One of abbe's principle, the direct measurement of seam allowance and body Hough face length dimension in achievable machine body cylinder sets of holes, measurement
Precision is high, and detection speed is fast, scene can examined directly to use, fill up the blank of measuring technique in this respect, existed
Processing workshop is on probation, and effect is ideal.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is parallel plate structure schematic diagram in Fig. 1.
Fig. 3 is the overlooking structure diagram of Fig. 2.
Fig. 4 is the structural schematic diagram of contour gauge block.
In figure: 1, measuring rod；2, fixed dial framework；3, table measuring head；4, contour gauge block；5, parallel flat；6, movable dial framework；
7, dial gauge.
Specific embodiment
The present invention is described further with reference to the accompanying drawing:
As shown in Figure 1 to 4, body mistake of the present invention face dimension measuring device, including surveyors' staff, parallel flat
5 and contour gauge block 4, surveyors' staff includes measuring rod 1, and fixed dial framework 2 and movable dial framework 6, measurement are installed in 1 both ends of measuring rod respectively
Slideway is arranged in corresponding activity dial framework 6 on bar 1, and table measuring head 3 is installed on fixed dial framework 2, installs dial gauge 7 on movable dial framework 6, etc.
High gauge block 4 is set as cylinder gauge block, and measuring rod 1, table measuring head 3 and dial gauge 7 are arranged in parallel.Contour gauge block 4 is set as three
It is a.Parallel flat 5 is set as strip plate, and the upper and lower ends of parallel flat 5, which are respectively set, passes through slot.Measuring rod 1 is set as
Radial through hole is arranged in seamless steel tube body, the corresponding fixed dial framework 2 of measuring rod 1, and fixed dial framework 2 and movable dial framework 6 pass through spiral shell
It is female to be fastened with measuring rod 1.
Body mistake of the present invention face dimension measurement method, by taking Z170 diesel-engine body as an example, wrong face size 614+0.10 0
For it is characterized in that following steps:
One, completes the zero-bit check and correction of measuring device in measuring room.
(1) 3 gauge blocks that 600mm, 50mm and 4 algnment accuracy grades are 0 grade are taken out, with dehydrated alcohol wiped clean, and
It grinds together with, forms the combined gauges of 654mm, be placed in the marble platform that measuring room accuracy class is 0 grade.
(2) the table measuring head 3 of body mistake face dimension measuring device and one end point contact of combined gauges are used, measuring device
The gauge outfit of other end dial gauge 7 and the other end point contact of combined gauges, it is most short anti-by constantly repeating searching 7 indicator of dial gauge
The method of feed point completes the zero-bit check and correction of measuring device dial gauge 7.
(3) indicator of dial gauge 7 is directed toward zero-bit at this time.
Two, complete the detection of wrong face size using relative measurement and detection method measured directly in working site.
(1) by seam allowance in the cylinder sets of holes of body and body Hough face, flash removed is removed, it is net with clean towel,
And it is clean with wind.Meanwhile three contour gauge blocks 4 and parallel flat 5 are taken out, and with dehydrated alcohol wiped clean.
(2) Hough of body is placed upwardly, the arrangement mode of isosceles triangle is pressed on the Hough face of body, placed
Three contour gauge blocks 4 place parallel flat 5 on three contour gauge blocks 4.
(3) with seam allowance point contact in the table measuring head 3 of body mistake face dimension measuring device and machine body cylinder sets of holes, measurement dress
The gauge outfit for the other end dial gauge 7 set and the upper plane point contact of parallel flat 5 find 7 indicator of dial gauge by constantly repeating
The method of most short feedback point reads deviation of the indicator of dial gauge 7 relative to zero-bit, wrong face size 614 can be rapidly completed+0.10 0Detection.
Note: when the indicator of dial gauge 7 deviates in the left side of zero-bit, dimensional tolerance is negative；When the indicator of dial gauge 7 deviates
On the right side of zero-bit, dimensional tolerance is positive, and basic size at this time should be 614mm.
Claims (5)
1. a kind of body mistake face dimension measuring device, it is characterised in that: including surveyors' staff, parallel flat (5) and contour gauge block
(4), surveyors' staff includes measuring rod (1), and fixed dial framework (2) and movable dial framework (6), measurement are installed in measuring rod (1) both ends respectively
Slideway is arranged in corresponding activity dial framework (6) on bar (1), installs table measuring head (3) on fixed dial framework (2), installs on movable dial framework (6)
Dial gauge (7), contour gauge block (4) are set as cylinder gauge block, measuring rod (1), table measuring head (3) and the parallel cloth of dial gauge (7)
It sets.
2. body mistake according to claim 1 face dimension measuring device, it is characterised in that: contour gauge block (4) is set as three
It is a.
3. body mistake according to claim 1 face dimension measuring device, it is characterised in that: parallel flat (5) is set as long
Bar-shaped plate, the upper and lower ends of parallel flat (5), which are respectively set, passes through slot.
4. body mistake according to claim 1 face dimension measuring device, it is characterised in that: measuring rod (1) is set as seamless
Steel tube body, the radial through hole of corresponding fixed dial framework (2) setting of measuring rod (1), fixed dial framework (2) and movable dial framework (6) are logical
It crosses nut and measuring rod (1) fastens.
5. a kind of based on body mistake face dimension measurement method described in any one of claim 1-4 claim, it is characterised in that
Following steps:
One, completes the zero-bit check and correction of measuring device in measuring room:
(1) taking out algnment accuracy grade is 0 grade of 3 gauge blocks, with dehydrated alcohol wiped clean, and grinds with together with, is formed and marked
The combined gauges of object staff cun are placed in the marble platform that measuring room accuracy class is 0 grade；
(2) with one end point contact of the table measuring head (3) of body mistake face dimension measuring device and combined gauges, measuring device it is another
The gauge outfit of one end dial gauge (7) and the other end point contact of combined gauges, it is most short by constantly repeating searching dial gauge (7) indicator
The method of feedback point completes the zero-bit check and correction of measuring device dial gauge (7)；
(3) indicator of dial gauge (7) is directed toward zero-bit at this time；
Two, complete the detection of wrong face size using relative measurement and detection method measured directly in working site:
(1) by seam allowance in the cylinder sets of holes of body and body Hough face, flash removed is removed, it is net with clean towel, it is used in combination
Wind is clean, meanwhile, take out three contour gauge blocks (4) and parallel flat (5), and with dehydrated alcohol wiped clean；
(2) Hough of body is placed upwardly, the arrangement mode of isosceles triangle is pressed on the Hough face of body, place three
Contour gauge block (4) places parallel flat (5) on three contour gauge blocks (4)；
(3) with seam allowance point contact, the table of the other end dial gauge (7) of measuring device on table measuring head (3) and machine body cylinder sets of holes
The upper plane point contact of head and parallel flat (5), by constantly repeating the method for finding the most short feedback point of dial gauge (7) indicator,
Deviation of the indicator of dial gauge (7) relative to zero-bit is read, the detection of wrong face size can be rapidly completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811222224.1A CN109029204A (en) | 2018-10-19 | 2018-10-19 | Body mistake face dimension measuring device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811222224.1A CN109029204A (en) | 2018-10-19 | 2018-10-19 | Body mistake face dimension measuring device and method |
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| Publication Number | Publication Date |
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| CN109029204A true CN109029204A (en) | 2018-12-18 |
Family
ID=64613776
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811222224.1A Pending CN109029204A (en) | 2018-10-19 | 2018-10-19 | Body mistake face dimension measuring device and method |
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| CN206300592U (en) * | 2016-12-27 | 2017-07-04 | 长沙方圆回转支承有限公司 | Raceway diameter detection means inside and outside adjustable pivoting support |
| CN206638125U (en) * | 2017-02-28 | 2017-11-14 | 浙江康普瑞汽车零部件有限公司 | A kind of three bearing pin center heights survey device |
| CN107860310A (en) * | 2017-09-21 | 2018-03-30 | 东莞华晶粉末冶金有限公司 | The multiaspect detection method of miniature Complex Parts |
| CN207540466U (en) * | 2017-12-22 | 2018-06-26 | 中国计量大学 | A kind of mechanism of automatic detection universal joint outer ring base thickness |
| CN208920999U (en) * | 2018-10-19 | 2019-05-31 | 淄柴动力有限公司 | Body mistake face dimension measuring device |
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2018
- 2018-10-19 CN CN201811222224.1A patent/CN109029204A/en active Pending
Patent Citations (16)
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| US20060283037A1 (en) * | 2005-06-17 | 2006-12-21 | The Technologies Alliance, Inc. | Gage for measuring diameters |
| CN201016684Y (en) * | 2006-12-23 | 2008-02-06 | 天水星火机床有限责任公司 | Lathe bed guide rail precision checkout gear |
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| CN103017638A (en) * | 2012-11-29 | 2013-04-03 | 西安航空动力控制科技有限公司 | Diameter measuring tool of inner spherical section circle and measuring method |
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| CN206300592U (en) * | 2016-12-27 | 2017-07-04 | 长沙方圆回转支承有限公司 | Raceway diameter detection means inside and outside adjustable pivoting support |
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