CN100584533C - Follow measuring method of crankshaft connecting rod roundness - Google Patents
Follow measuring method of crankshaft connecting rod roundness Download PDFInfo
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- CN100584533C CN100584533C CN200810062083A CN200810062083A CN100584533C CN 100584533 C CN100584533 C CN 100584533C CN 200810062083 A CN200810062083 A CN 200810062083A CN 200810062083 A CN200810062083 A CN 200810062083A CN 100584533 C CN100584533 C CN 100584533C
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Abstract
The invention belongs to the field of the mechanical processing, in particular to a follow measurement method for roundness of a crankshaft pin, which is characterized in that a measuring head is arranged on a grinding carriage guide rail, and the vertical plane of the measuring head leans tightly against the external surface of the crankshaft pin to be measured; a crankshaft pin specimen is selected, and an on-line measurement roundness error at various angles of the connecting rod journal specimen is measured on line; the actual roundness error is deducted from the measured roundness error of the specimen so as to obtain fixed roundness error of the measuring system; the data about the fixed roundness error are input into the measuring system, the workpieces are arranged, and the actual roundness error of the connecting rod journal workpiece can be obtained by automatically subtracting the fixed roundness error of the workpiece from the measuring roundness error of the workpiece, and the numeral system carries out another machining to eliminate the workpiece roundness error, according to the correction program data of the actual roundness error of the workpiece. The follow measurement method of the invention adopts single-point measurement, thus having the advantages of simple structure, convenient measurement, being scientific and rational and having good economy.
Description
Technical field
The invention belongs to machining methods, specifically is a kind of follow measuring method of crankshaft-link rod roundness.
Background technology
In machine driving, usually use bent axle, crankshaft-link rod roundness follow grinding has market application foreground widely, but because the requirement of crankshaft-link rod roundness is generally higher, necessary on-line measurement, make the digital control system of lathe proofread and correct data program, thereby reach the higher circularity of connecting rod neck according to measurement result.Conventional online is measured the general bikini roundness measuring equipment that uses and is carried out, but this apparatus structure complexity involves great expense, and fault rate is higher in the use.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of follow measuring method of simple in structure, easy to use, the crankshaft-link rod roundness that adopts spot measurement is provided.
Technical scheme of the present invention is as follows:
A kind of follow measuring method of crankshaft-link rod roundness is characterized in that: gage outfit is installed on the grinding carriage guide rail by measuring headstock, and the vertical plane of gage outfit is near the connecting rod neck outer surface of bent axle to be measured; Select a crank-shaft link neck test specimen, rotary crankshaft, and with moved further grinding carriage guide rail, drive the measurement headstock and move horizontally, the distance that the on-line measurement gage outfit moves horizontally, this distance are the on-line measurement deviation from circular from of test specimen connecting rod neck all angles; The test specimen bent axle is placed on the actual deviation from circular from of measuring test specimen connecting rod neck all angles on the roundness measuring equipment; The test specimen connecting rod neck on-line measurement deviation from circular from of measuring is deducted the actual deviation from circular from of test specimen connecting rod neck all angles, promptly get the fixedly deviation from circular from of measuring system; Fixing deviation from circular from data input measurement system, during on-line measurement, load onto workpiece, record the online workpiece calibration deviation from circular from of all angles, automatically deduct fixedly deviation from circular from according to the workpiece calibration deviation from circular from, promptly obtain the actual deviation from circular from of workpiece connecting rod neck, digital control system is processed the elimination roundness error of workpiece again according to the actual deviation from circular from correction program of workpiece data.
The present invention adopts a test specimen to measure test specimen earlier and measures deviation from circular from, after deducting the actual deviation from circular from of test specimen, obtain fixedly deviation from circular from of measuring system, fixedly deviation from circular from is imported digital control system, measurement deviation from circular from according to practical work piece, obtain the actual deviation from circular from of workpiece, and eliminate roundness error of workpiece with the digital control system correction program.The present invention adopts single-point (contact point of gage outfit vertical plane and connecting rod neck outer surface) to measure, and is simple in structure, and it is convenient, scientific and reasonable to measure, good economy performance.
Description of drawings
Fig. 1 is a schematic diagram of the present invention.
The specific embodiment
As shown in Figure 1, a kind of follow measuring method of crankshaft-link rod roundness is characterized in that:
A, gage outfit 3 is installed on the grinding carriage guide rails 1 by measuring headstock 2, the vertical plane of gage outfit is near connecting rod neck 4 outer surfaces of bent axle 5 to be measured;
B, selection one crank-shaft link neck test specimen, rotary crankshaft 5, when crankshaft rotating, and with moved further grinding carriage guide rail 1, driving the measurement headstock moves horizontally, the distance that on-line measurement gage outfit 3 moves horizontally, this distance are the on-line measurement deviation from circular from of test specimen connecting rod neck all angles, and the deviation from circular from of the test specimen connecting rod neck all angles of this on-line measurement has comprised the displacement error of grinding carriage guide rail and fixedly deviation from circular from and actual test specimen connecting rod roundness error that the crankshaft rotating angular errors causes;
During crankshaft rotating of the present invention, grinding carriage guide rail 1 drives to be measured headstock and moves horizontally, and suppose the distance that x moves for the on-line measurement gage outfit, and α is connecting rod neck center and crankshaft center line and horizontal plane angle, and R is the crank-shaft link neck eccentric throw, and their relation is satisfied
X=|Rcos α |, gage outfit moves horizontally its measurement face under the measurement headstock drives be the vertical plane vertical with horizontal plane, because move on horizontal plane synchronously at grinding carriage guide rail and connecting rod neck center, so the distance that moves according to the on-line measurement gage outfit is the measurement deviation from circular from of the online all angles of connecting rod neck.
C, the test specimen bent axle is placed on the actual deviation from circular from of test specimen of measuring test specimen connecting rod neck all angles on the roundness measuring equipment;
D, the test specimen connecting rod neck on-line measurement deviation from circular from of measuring is deducted the actual deviation from circular from of test specimen connecting rod neck all angles, promptly get the fixedly deviation from circular from of measuring system;
E, fixing deviation from circular from data input measurement system, during on-line measurement, load onto workpiece, record the online workpiece calibration deviation from circular from of all angles, automatically deduct fixedly deviation from circular from according to the workpiece calibration deviation from circular from, promptly obtain the actual deviation from circular from of workpiece connecting rod neck, digital control system is processed the elimination roundness error of workpiece again according to the actual deviation from circular from correction program of workpiece data.
Claims (1)
1, a kind of follow measuring method of crankshaft-link rod roundness is characterized in that: gage outfit is installed on the grinding carriage guide rail by measuring headstock, and the vertical plane of gage outfit is near the connecting rod neck outer surface of bent axle to be measured; Select a crank-shaft link neck test specimen, rotary crankshaft, and with moved further grinding carriage guide rail, drive the measurement headstock and move horizontally, the distance that the on-line measurement gage outfit moves horizontally, this distance are the on-line measurement deviation from circular from of test specimen connecting rod neck all angles; The test specimen bent axle is placed on the actual deviation from circular from of measuring test specimen connecting rod neck all angles on the roundness measuring equipment; The test specimen connecting rod neck on-line measurement deviation from circular from of measuring is deducted the actual deviation from circular from of test specimen connecting rod neck all angles, promptly get the fixedly deviation from circular from of measuring system; Fixing deviation from circular from data input measurement system, during on-line measurement, load onto workpiece, record the online workpiece calibration deviation from circular from of all angles, automatically deduct fixedly deviation from circular from according to the workpiece calibration deviation from circular from, promptly obtain the actual deviation from circular from of workpiece connecting rod neck, digital control system is processed the elimination roundness error of workpiece again according to the actual deviation from circular from correction program of workpiece data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810062083A CN100584533C (en) | 2008-05-23 | 2008-05-23 | Follow measuring method of crankshaft connecting rod roundness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810062083A CN100584533C (en) | 2008-05-23 | 2008-05-23 | Follow measuring method of crankshaft connecting rod roundness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101279438A CN101279438A (en) | 2008-10-08 |
| CN100584533C true CN100584533C (en) | 2010-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810062083A Expired - Fee Related CN100584533C (en) | 2008-05-23 | 2008-05-23 | Follow measuring method of crankshaft connecting rod roundness |
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| CN (1) | CN100584533C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679939A (en) * | 2012-05-11 | 2012-09-19 | 浙江师范大学 | Roundness detecting method for eccentric shaft part |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009032353A1 (en) * | 2009-07-08 | 2011-09-08 | Hommel-Etamic Gmbh | Method for determining the shape of a workpiece |
| CN102198634B (en) * | 2011-03-09 | 2013-01-09 | 上海大学 | Measuring method and device for in process measurement on crank shaft contour |
| CN102773800B (en) * | 2012-08-15 | 2014-11-12 | 潘旭华 | Method for improving roundness precision in follow-up grinding process of connecting rod necks of crank shaft |
| CN103358231A (en) * | 2013-07-25 | 2013-10-23 | 长春设备工艺研究所 | Aspheric grinding surface figure accuracy high-efficiency on-line measurement method for middle-large-aperture optical element |
| CN104108055B (en) * | 2014-07-08 | 2016-03-16 | 广东美芝制冷设备有限公司 | For the positioner of crankshaft eccentric shaft processing |
| CN104802086B (en) * | 2015-04-09 | 2017-06-16 | 北京第二机床厂有限公司 | The phase automated on-line instrumentation of crank-shaft link neck |
| CN107643043A (en) * | 2017-10-29 | 2018-01-30 | 无锡万奈特测量设备有限公司 | Connecting rod neck follow-up detector |
| CN108709520A (en) * | 2018-08-31 | 2018-10-26 | 苏州凯斯通机电科技有限公司 | The deviation correction method that three coordinate measuring machine XZ movable stands are rotated around itself |
-
2008
- 2008-05-23 CN CN200810062083A patent/CN100584533C/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 曲轴连杆颈圆度误差跟踪测量方法研究. 李迎伟，李明，李伟.制造技术与机床，第11期. 2007 |
| 曲轴连杆颈圆度误差跟踪测量方法研究. 李迎伟，李明，李伟.制造技术与机床，第11期. 2007 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679939A (en) * | 2012-05-11 | 2012-09-19 | 浙江师范大学 | Roundness detecting method for eccentric shaft part |
| CN102679939B (en) * | 2012-05-11 | 2014-06-25 | 浙江师范大学 | Roundness detecting method for eccentric shaft part |
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| Publication number | Publication date |
|---|---|
| CN101279438A (en) | 2008-10-08 |
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