CN101776429B - Check tool for measuring axial length of crank shaft and application thereof - Google Patents
Check tool for measuring axial length of crank shaft and application thereof Download PDFInfo
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- CN101776429B CN101776429B CN2010101098441A CN201010109844A CN101776429B CN 101776429 B CN101776429 B CN 101776429B CN 2010101098441 A CN2010101098441 A CN 2010101098441A CN 201010109844 A CN201010109844 A CN 201010109844A CN 101776429 B CN101776429 B CN 101776429B
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Abstract
The invention discloses a check tool for measuring the axial length of a crank shaft and the application thereof. The check tool is characterized in that both ends of a measuring frame are respectively provided with downwards vertical measuring arms, the end heads of the measuring arms are respectively provided with positioning blocks, a positioning measure head is arranged on one positioning block, the other end of the measuring frame is provided with a measuring measure head opposite to the positioning measure head, the measuring measure head is arranged on one end of a lever, and the other end of the lever is in contact with a dial indicator. The invention also discloses a method for applying the check tool to the axial length detection of the crank shaft and the online axial length detection method of the crank shaft in the processing station of a machine tool. The check tool has high measuring precision, can be used for accurate measurement on occasions with two measuring points which have unequal heights and can not be accurately measured by vernier calipers, can also conveniently realizes the on-line measurement of the crank shaft in the processing station of a machine tool and avoid rapidly advanced grinding wheels colliding with workpieces to scrap the crank shaft.
Description
Technical field
The present invention relates to survey instrument, specifically is a kind of cubing and application thereof of measuring axial length of crank shaft.
Background technology
Usually the axial dimension of axial workpiece is to measure with vernier caliper, axially exists following not enough with the vernier caliper measurement bent axle:
(1) two of vernier caliper to survey pin be etc. high; When two measuring points do not wait under the high situation, in ± 0.1mm, adopt vernier caliper can't slide calliper rule be held level with both hands like: P11C bent axle thrust shelves axial distance precision prescribed to the axial distance of each connecting rod neck, bent axle thrust shelves to each step of microcephaly at all; There is an angle with surface level; Therefore can't accurately measure, and when measuring long axial distance, because everyone is inconsistent to two ergometries of surveying pin of slide calliper rule; Different people's measuring error is very big, can reach 0.05-0.1mm usually;
(2) can't realize the online detection of bent axle at the machine tooling station: forbidden owing to measure, common way is that bent axle is holded up, and is placed on the platform, measures piecemeal with the digital display height gauge, and then converts.Because bent axle is very heavy, the very inconvenience under hanging on, hanging usually can cause and collide with, and hangs on the platform before or after also can only accomplishing to process and detect, and can't be implemented in the online detection of machining position;
(3) in order to guarantee the axial distance of microcephaly's step to the thrust retaining; Digital display grating chi normally is installed, after thrust retaining mill is good, with the grating zero clearing on grinding machine; Press the demonstration mill microcephaly step of grating then; The cylindrical that on a machine tool, usually needs the several different-diameters of mill like this, when the diameter of several cylindricals differs big, when the emery wheel F.F. very easily takes place with the workpiece collision.
Summary of the invention
The objective of the invention is for overcoming the deficiency of prior art; And the application of cubing from a kind of bent axle song to size and this cubing is provided; This cubing measuring accuracy is high, is used in two measuring points and does not wait height, and can't accurately measure with the occasion that vernier caliper is accurately measured; Can also realize easily bent axle in the on-line measurement of machine tooling station and when avoiding the emery wheel F.F. and workpiece bump against, and it is useless that bent axle is caused.
The present invention realizes through following technical scheme:
A kind of cubing of measuring axial length of crank shaft; Be respectively equipped with gage beam vertically downward at the two ends of measurement bay; The termination of said gage beam is respectively equipped with locating piece, and one of them locating piece is provided with the location gauge head, is provided with the measurement gauge head at the other end with respect to the said measurement bay of this location gauge head; This measurement gauge head is arranged on an end of lever, and the other end and the dial gauge of this lever are abutted against.
Described measurement gauge head is arranged on the bottom of said lever; The measuring staff end of the top of this lever and said dial gauge is abutted against; The centre of gyration of this lever is rotatable to be arranged on the lever support; This lever support is installed on the described measurement bay, and described dial gauge is located on the described measurement bay through the table clamping.
The described centre of gyration equates with the distance of the contact point of said lever with the measuring staff of this centre of gyration to said dial gauge with the distance of the contact point of tested bent axle to measuring gauge head.
Between the top of said lever and described table folder, also be provided with compression spring, be abutted against with the adjuster bar that is arranged on the said lever support in the outside on the top of this lever.
Described location gauge head is small ball with the measurement gauge head.
Described locating piece is the V-arrangement locating piece.
This cubing is applied to the detection of axial length of crank shaft and the online detection of the axial length of crank shaft on the machine tooling station.
Said application process comprises the steps:
(1), does one and the standard sample of equal measuring condition is arranged: the equal diameters of the diameter of the V-arrangement support zone of said standard sample and the V-arrangement support zone of tested bent axle with tested bent axle; The distance of the measurement face that the locating surface that contacts with described location gauge head on the said standard sample contacts with described measurement gauge head to this standard sample is worked near the middle difference that is asked to size; The measured length value is labeled on this standard sample, so that press the measured length his-and-hers watches;
(2), with described measurement bay on the described standard sample to zero: with two V-arrangement locating pieces of described measurement bay respectively on the axle journal of framves at said standard sample; Described location gauge head with measure gauge head and contact with detection faces with the right side shoulder face of the axle journal of this standard sample respectively, be adjusted into the reading of dial gauge zero;
(3), measure the length difference of tested bent axle and standard sample: framves are on the main shaft axle journal of tested bent axle respectively with two V-arrangement locating pieces of described measurement bay, and described location gauge head and measurement gauge head are takeed on face with the right side of the main shaft axle journal of this tested bent axle respectively and contacted with detection faces;
(4), carry out reading, this reading value is the length difference of said tested bent axle and standard sample through described dial gauge;
(5), with the length value and the reading value addition of (4) step that are labeled in (1) step on the said standard sample, obtain the length value of tested bent axle axial dimension.
The V-arrangement locating piece is used to guarantee that measurement bay can place measured workpiece or standard sample firmly, securely, measures so that implement.
Dial gauge is the dimensional measuring instrument (GB1219-85) that a kind of national standard is produced; Measurement range is 0～3mm etc.; The length displacement of its sounding rod (being the comparison difference of tested exemplar and calibrated bolck); Changing the angular displacement of pointer at dial plate into through machine driven system, is 0.01mm along uniform scale, scale division value are arranged on the dial plate circumference.
The location gauge head is used for measurement bay and places the axial location (being the measuring basis of axial dimension) on measured workpiece or the standard sample, implements to measure as benchmark.
Measuring gauge head is a small ball that is welded on lever one end, keeps point to contact with measured surface when guaranteeing to measure, to guarantee the uniqueness of measurement result.
Lever support is that lever is fixed on the measurement bay, can adjust the initial position of lever under free state (being non-measurement state) through the adjustment of the adjuster bar on lever support screw.
The centre of gyration to dial gauge measuring staff distance with lever contact point equates with this centre of gyration that to the distance of measuring gauge head and tested bent axle contact point effect is the length displacement that the comparison difference equivalence of tested bent axle and standard sample is converted into the dial gauge sounding rod.
This cubing can be used for the occasion that can't accurately measure with vernier caliper, accurately measure axial length of crank shaft, realize easily crankshaft length in the on-line measurement of machine tooling station when avoiding the emery wheel F.F. and the workpiece collision, and it is useless that bent axle is caused.
Good effect of the present invention is:
1, under the situation that do not wait height at two measuring points, can't measure with vernier caliper, use this cubing can accurately measure axial length of crank shaft;
2, the measuring condition of this cubing standard sample is consistent with tested exemplar; Neither wait high measuring point to design by actual axle; The reading of dial gauge is and the comparison error of standard sample, adopts a bascule that measuring error is reflected on the dial gauge and reads, and can realize the on-line measurement of bent axle at the machine tooling station easily; And have easy to use, be convenient to make and characteristics that measuring accuracy is high, the measuring error of different people is no more than 0.01mm;
3, simplified operation, adopt this cubing after, can thrust retaining and microcephaly's step be separated grinding, and guarantee that well thrust keeps off the axial dimension of microcephaly's step, avoid above-mentioned collision and that bent axle is caused is useless.
Description of drawings
Fig. 1 is the structural representation of cubing of the present invention;
The cooperation synoptic diagram of Fig. 2 during for cubing measurement standard appearance piece of the present invention;
Fig. 3 is the cooperate synoptic diagram of the V-arrangement locating piece in the cubing of the present invention with standard sample;
Fig. 4 compares the synoptic diagram of difference when measuring for cubing of the present invention;
Fig. 5 is a cubing on-line measurement synoptic diagram of the present invention.
Among the figure: 1. lever support 2. levers 3. table folders 4. measurement bays 5. location gauge heads 6. standard samples 7. pressing plates 8. bases 9. compression springs 10. dial gauges 11. measurement gauge heads 12. centres of gyration 13. gage beams 14. locating pieces 15 adjuster bars 16. bent axles 17. grinding machines are top
Embodiment
Below in conjunction with accompanying drawing and embodiment content of the present invention is further described.
Embodiment:
With reference to Fig. 1 Fig. 3; The present invention measures the cubing of axial length of crank shaft, is respectively equipped with gage beam 13 vertically downward at the two ends of measurement bay 4, and the termination of gage beam 13 is respectively equipped with locating piece 14; One of them locating piece 14 is provided with location gauge head 5; Be provided with at the other end with respect to the measurement bay 4 of this location gauge head 5 and measure gauge head 11, this measurement gauge head 11 is arranged on an end of lever 2, and the other end of this lever 2 and dial gauge 10 are abutted against.
Measure the bottom that gauge head 11 is arranged on lever 2; The measuring staff end of the top of this lever 2 and dial gauge 10 is abutted against; The centre of gyration 12 rotatable being arranged on the lever support 1 of lever 2; But center 12 rotations are changeed in lever 2 wraparounds, and this lever support 1 is installed on the measurement bay 4, and dial gauge 10 is installed on the measurement bay 4 through table folder 3.
The centre of gyration 12 equates with the distance of lever 2 contact points with the measuring staff of this centre of gyration 12 to dial gauge 10 with the distance of tested bent axle 16 contact points to measuring gauge head 11.
Between the top of lever 2 and table folder 3, also be provided with compression spring 9, be abutted against with the adjuster bar 15 that is arranged on the lever support 1 in the outside on the top of this lever 2.
Locating piece 14 is the V-arrangement locating piece, and the V-arrangement locating piece is used to guarantee that measurement bay 4 can place tested bent axle 16 firmly, securely, measures so that implement.
The centre of gyration 12 is fixed on the lever support 1; The centre of gyration 12 equates with the distance of the contact point of lever 2 with the measuring staff of this centre of gyration to dial gauge 10 with the distance of tested bent axle 16 contact points that to measuring gauge head 11 effect is the length displacement that the tested bent axle 16 and the comparison difference equivalence of standard sample 6 is converted into dial gauge 10 sounding rods.
As shown in Figure 4; The comparison value of delta of tested bent axle 16 and standard sample 6 makes δ value of measurement gauge head 11 displacement to the right (rotation) of lever 2; Because the centre of gyration 12 is to measuring equating with the distance A of the contact point of lever 2 with the measuring staff of the centre of gyration 12 to dial gauge 10 apart from B of gauge head 11 and tested bent axle 16 contact points, so this value quilt equivalence converts the length displacement δ of dial gauge 10 sounding rods into.
With reference to Fig. 2～Fig. 5; This cubing is applied to the detection of bent axle 16 axial lengths and the online detection of 16 axial lengths of the bent axle on the machine tooling station, detects in this example and be fixed on the length of the IV main shaft shoulder of the bent axle 16 on the grinding machine top 17 to bent axle microcephaly step.
The application process of this cubing comprises the steps:
(1), does one and the standard sample 6 of equal measuring condition is arranged: the equal diameters of the diameter of the V-arrangement support zone of standard sample 6 and the V-arrangement support zone of tested bent axle 16 with tested bent axle 16; Diameter is φ 90.4mm; The distance of the measurement face that contacts with measurement gauge head 11 to this standard sample 6 with the location locating surface that contact of gauge head 5 on the standard sample 6 is worked near the middle difference that is asked to size; The measured length value is 425.23mm, is labeled on this standard sample 6, so that press the measured length his-and-hers watches;
(2), with measurement bay 4 on the standard sample 6 to zero: with two V-arrangement locating pieces 14 of measurement bay 4 respectively framves on the axle journal of standard sample 6; Location gauge head 5 with measure gauge head 11 and contact with detection faces with the right side shoulder face of the axle journal of this standard sample 6 respectively, be adjusted into the reading of dial gauge 10 zero;
(3), measure the length difference of tested bent axle and standard sample: framves are on the I of tested bent axle 16, IV main shaft axle journal respectively with two V-arrangement locating pieces 14 of measurement bay 4, and location gauge head 5 contacts with bent axle microcephaly step detection faces with the IV main shaft axle journal right side shoulder face of this tested bent axle 16 respectively with measurement gauge head 11;
(4), carry out reading through dial gauge 10; This reading value is a tested bent axle 16 and the length difference of standard sample 6, and this dial gauge has eight lattice scale values, when the relative zero-bit of dial gauge indicator be when being rotated counterclockwise reading on the occasion of; Otherwise be negative value then, reading value is+0.08mm in this example;
(5), with the length value and the reading value addition of (4) step that are labeled in (1) step on the said standard sample, obtain the length value of tested bent axle axial dimension, this length value is in this example: 425.23mm+0.08mm=425.31mm.
Being produced on the general cylindrical grinder of standard sample 6 can be accomplished; The locating surface that contacts with location gauge head 5 on the cylindrical of the V-arrangement support zone of standard sample 6, the standard sample 6 requires once clamping completion on grinding machine with the measurement face that contacts with measurement gauge head 11, to guarantee the verticality of locating surface and cylindrical center line.The distance of the measurement face that contacts with measurement gauge head 11 to the standard sample 6 with the location locating surface that contact of gauge head 5 on the standard sample 6 generally is worked near the middle difference that is asked to size; Final actual measurement size is general to be required to take to be labeled on the assigned position of standard sample 6 after measuring room is accurately measured, so that when measuring, press actual measurement size his-and-hers watches.
Claims (2)
1. cubing of measuring axial length of crank shaft; Comprise measurement bay, dial gauge, measurement gauge head, location gauge head, be respectively equipped with gage beam vertically downward at the two ends of measurement bay, it is characterized in that: the termination of said gage beam is respectively equipped with locating piece; One of them locating piece is provided with the location gauge head; The other end with respect to the said measurement bay of this location gauge head is provided with the measurement gauge head, and this measurement gauge head is arranged on an end of lever, and the other end and the dial gauge of this lever are abutted against;
Described measurement gauge head is arranged on the bottom of said lever; The measuring staff end of the top of this lever and said dial gauge is abutted against; The centre of gyration of this lever is rotatable to be arranged on the lever support; This lever support is installed on the described measurement bay, and described dial gauge is located on the described measurement bay through the table clamping;
The described centre of gyration equates with the distance of the contact point of said lever with the measuring staff of this centre of gyration to said dial gauge with the distance of the contact point of tested bent axle to measuring gauge head;
Between the top of said lever and described table folder, also be provided with compression spring, be abutted against with the adjuster bar that is arranged on the said lever support in the outside on the top of this lever;
Described location gauge head is small ball with the measurement gauge head;
Described locating piece is the V-arrangement locating piece.
2. the cubing of the described measurement axial length of crank shaft of claim 1 does not wait the application in high, the axial length of crank shaft that can't measure with vernier caliper at two measuring points, and it is characterized in that: application process comprises the steps:
(1), does one and the standard sample of equal measuring condition is arranged: the equal diameters of the diameter of the V-arrangement support zone of said standard sample and the V-arrangement support zone of tested bent axle with tested bent axle; The length of the measurement face that the locating surface that contacts with described location gauge head on the said standard sample contacts with described measurement gauge head to this standard sample is worked near the middle difference that is asked to size, and the measured length value is labeled on this standard sample;
(2), with described measurement bay on the described standard sample to zero: with two V-arrangement locating pieces of described measurement bay respectively on the axle journal of framves at said standard sample; Described location gauge head with measure gauge head and contact with detection faces with the right side shoulder face of the axle journal of this standard sample respectively, be adjusted into the reading of dial gauge zero;
(3), measure the length difference of tested bent axle and standard sample: framves are on the main shaft axle journal of said tested bent axle respectively with two V-arrangement locating pieces of said measurement bay, and described location gauge head and measurement gauge head are takeed on face with the right side of the main shaft axle journal of this tested bent axle respectively and contacted with detection faces;
(4), carry out reading, this reading value is the length difference of said tested bent axle and standard sample through described dial gauge;
(5), with the length value and the reading value addition of (4) step that are labeled in (1) step on the said standard sample, obtain the length value of said tested bent axle axial dimension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101098441A CN101776429B (en) | 2010-02-13 | 2010-02-13 | Check tool for measuring axial length of crank shaft and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101098441A CN101776429B (en) | 2010-02-13 | 2010-02-13 | Check tool for measuring axial length of crank shaft and application thereof |
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| Publication Number | Publication Date |
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| CN101776429A CN101776429A (en) | 2010-07-14 |
| CN101776429B true CN101776429B (en) | 2012-04-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101098441A Active CN101776429B (en) | 2010-02-13 | 2010-02-13 | Check tool for measuring axial length of crank shaft and application thereof |
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| CN105333828B (en) * | 2015-11-19 | 2016-11-30 | 西安交通大学 | A kind of four-axle linked tracking mode crank shaft measurement method |
| CN106323129A (en) * | 2016-11-25 | 2017-01-11 | 中车戚墅堰机车有限公司 | Adjustable axial size precision measurement device |
| CN106895768B (en) * | 2017-03-31 | 2024-04-19 | 长春市美科智能科技有限公司 | Ring groove diameter gauge |
| CN107421480B (en) * | 2017-05-19 | 2023-06-16 | 洛阳Lyc轴承有限公司 | Length detection method and device for tapered roller |
| CN110345844B (en) * | 2019-08-21 | 2024-03-22 | 桂林福达曲轴有限公司 | Device for detecting distance between crankshaft positioning surface and axis and use method thereof |
| CN111360583A (en) * | 2020-04-24 | 2020-07-03 | 成都航利航空科技有限责任公司 | Special inner diameter measuring tool for exhaust assembly in aircraft engine and using method thereof |
| CN112013755B (en) * | 2020-09-01 | 2024-05-24 | 浙江科圆工程检测有限公司 | Quick detection device of stair marking time |
| CN112504070B (en) * | 2021-01-15 | 2024-07-05 | 桂林福达重工锻造有限公司 | Crankshaft axial dimension detection device |
| CN113970280B (en) * | 2021-10-11 | 2024-02-06 | 中冶陕压重工设备有限公司 | Measuring method for grinding dimensional accuracy of machine tool guide rail |
| CN114719709B (en) * | 2022-03-02 | 2023-09-22 | 上汽大众汽车有限公司 | Detection device for detecting blank allowance by crankshaft positioning reference |
| CN115077333A (en) * | 2022-06-15 | 2022-09-20 | 益阳康益机械发展有限公司 | Large-size precision measurement gauge and measurement method |
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| CN101281015A (en) * | 2008-04-23 | 2008-10-08 | 合肥工业大学 | Method for detecting roller completed product |
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| CN101281015A (en) * | 2008-04-23 | 2008-10-08 | 合肥工业大学 | Method for detecting roller completed product |
Non-Patent Citations (1)
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| 朱正德.两种工序间曲轴轴向长度快速检测装置.《计量技术》.1999,(第11期),10-12. * |
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