CN101745871B - Method for measuring motion straightness error of movable guide rail - Google Patents
Method for measuring motion straightness error of movable guide rail Download PDFInfo
- Publication number
- CN101745871B CN101745871B CN2009101553434A CN200910155343A CN101745871B CN 101745871 B CN101745871 B CN 101745871B CN 2009101553434 A CN2009101553434 A CN 2009101553434A CN 200910155343 A CN200910155343 A CN 200910155343A CN 101745871 B CN101745871 B CN 101745871B
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- Prior art keywords
- guide rail
- cylinder
- point
- straightness error
- moving guide
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Abstract
The invention belongs to machine machining, in particular to a method for measuring a motion straightness error of a movable guide rail. The method is characterized in that: the movable guide rail is provided with two opposite tips; a tip seat is arranged on the movable guide rail; a cylinder is arranged between the two tips; a fixed guide rail is provided with a grinding wheel which is in point contact with the cylinder; the movable guide rail moves to drive the cylinder to move linearly and to rotate the cylinder; the grinding wheel grinds the cylinder; a contact point between the grinding wheel and the cylinder and a central line of the cylinder form a plane; after the cylinder is ground, a diameter value of each point of the cylinder in a length direction is measured to obtain the motion straightness error of the movable guide rail on the plane; a diameter at a certain position on the cylinder is set as a standard diameter; and a difference value between the diameter value of each point in length and the standard diameter is divided by two to obtain a straightness error value of the movable guide rail on each point in relation to the grinding point of a grinding wheel on the fixed guide rail. The method is simple, convenient, scientific and reasonable and has measurement precision.
Description
Technical field
The invention belongs to the mechanical means class, specifically is a kind of measuring method of motion straightness error of movable guide rail.
Background technology
In the mechanical processing process, can drive workpiece and fixed cutting tool (or emery wheel) generation relative motion processing work by moving guide rail, also can drive cutter (or emery wheel) and produce the relative motion processing work with fixation workpiece by moving guide rail, all have motion straightness error with the moving guide rail of which kind of method, and this motion straightness error is reflected on the workpiece of being processed directly.When the precision component of the high linearity of processing, grinding machine as guide rail, just need measure motion straightness error of movable guide rail, then by with moving guide rail movement vertical direction on be provided with the compensation guide rail linearity is compensated, because the compensation guide rail can be done very accurately, as long as just can adopt the bigger moving guide rail of straightness error to process the less precision component of straightness error so can measure the straightness error of moving guide rail movement, yet in the prior art guide rail linearity error is carried out micron or the measurement of 0.1 micron level is difficult to, so fine compensation is difficult to play a role.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of measuring method of motion straightness error of movable guide rail is provided, thereby motion straightness error of movable guide rail is accurately measured effectively moving guide rail linearity is carried out error compensation.
The present invention adopts following technical scheme:
A kind of measuring method of motion straightness error of movable guide rail, it is characterized in that: on moving guide rail, be provided with two relative top, top being contained on the dead head, dead head is contained on the moving guide rail, two are equipped with a cylinder, cylinder length and moving guide rail movement equal in length between top; Decide to be provided with on the guide rail emery wheel, emery wheel contacts with cylinder point, drives the cylinder rectilinear motion when moving guide rail movement, and makes the cylinder rotation, the wheel grinding cylinder, and emery wheel and cylinder contact point and cylinder center line form a plane; After the cylinder grinding, measure the cylinder diameter value of each point in the longitudinal direction, measurement promptly be that moving guide rail on this plane is with respect to the motion straightness error of grinding points; If the diameter of a certain position is a normal diameter on the cylinder, on the length difference of each point diameter value and normal diameter divided by two be exactly moving guide rail at each point with respect to the straightness error value of deciding wheel grinding point on the guide rail, because the diameter value of each point can be set out the straightness error of guide rail movement with respect to this point so can accurately calculate very accurately with 0.1 micron measurement.
The present invention is by grinding one cylinder consistent with moving guide rail movement, measure cylindrical error, thereby calculate the error of setting out the guide rail movement linearity, simple and convenient, scientific and reasonable, measure accurately,, thereby can adopt the bigger moving guide rail of straightness error to process the less precision component of straightness error for the fine compensation that moves the guide rail linearity error provides possibility.
Description of drawings
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is emery wheel and cylinder grinding position figure.
The specific embodiment
As shown in Figure 1, 2, a kind of measuring method of motion straightness error of movable guide rail is characterized in that:
A, be provided with two relative top 4, top 4 be contained on the dead head 3 on moving guide rail 2, dead head 3 is contained on the moving guide rail 2, and a cylinder 5 is housed between two top 4, and cylinder 5 length equate with moving guide rail 2 movement length;
B, decide to be provided with on the guide rail 1 emery wheel 6, emery wheel 6 contacts with 5 on cylinder, and drive cylinder 5 rectilinear motions during moving guide rail 2 motions, and make cylinder 5 rotations, emery wheel 6 grinding cylinder bodies 5, emery wheel 6 forms a plane A with cylinder 5 contact points and cylinder center line;
After C, cylinder 5 grindings, measure cylinder 5 diameter value of each point in the longitudinal direction, because cylinder each point is in the longitudinal direction all represented moving guide rail each position on the direction of motion, the each point semidiameter is the motion straightness error of the moving moving guide rail of guide rail on this plane with respect to grinding points on the cylinder;
D, the diameter of establishing a certain position on the cylinder are normal diameter, on the length difference of each point diameter value and normal diameter divided by two be exactly moving guide rail at each point with respect to the straightness error value of deciding wheel grinding point on the guide rail, because the diameter value of each point can be set out the straightness error of guide rail movement with respect to this point so can accurately calculate very accurately with 0.1 micron measurement.
The present invention adopts the compensation guide rail to carry out fine compensation according to measured moving guide rail movement with respect to the straightness error of this point.
Cylinder of the present invention can be used the areal survey method more in short-term.
The present invention can use approximate calculation if the emery wheel that adopts is wide emery wheel.
In like manner, the present invention also can be contained in top and cylinder and decide on the guide rail, specifically decide to be provided with on the guide rail two relative top, top being contained on the dead head, dead head is contained in to be decided on the guide rail, two are equipped with a cylinder between top; On the moving guide rail emery wheel is set, emery wheel contacts with cylinder point, drives the emery wheel rectilinear motion when moving guide rail movement, and makes the emery wheel rotation, the wheel grinding cylinder, and emery wheel and cylinder contact point and cylinder center line form a plane; After the cylinder grinding, measure the cylinder diameter value of each point in the longitudinal direction, measurement promptly be that moving guide rail on this plane is with respect to the motion straightness error of grinding points; If the diameter of a certain position is a normal diameter on the cylinder, on the length difference of each point diameter value and normal diameter divided by two be exactly moving guide rail at each point with respect to the straightness error value of deciding guide rail.
Claims (2)
1. the measuring method of a motion straightness error of movable guide rail, it is characterized in that: on moving guide rail, be provided with two relative top, top being contained on the dead head, dead head is contained on the moving guide rail, two are equipped with a cylinder, cylinder length and moving guide rail movement equal in length between top; Decide to be provided with on the guide rail emery wheel, emery wheel contacts with cylinder point, drives the cylinder rectilinear motion when moving guide rail movement, and makes the cylinder rotation, the wheel grinding cylinder, and emery wheel and cylinder contact point and cylinder center line form a plane; After the cylinder grinding, measure the cylinder diameter value of each point in the longitudinal direction, measurement promptly be that moving guide rail on this plane is with respect to the motion straightness error of grinding points; If the diameter of a certain position is a normal diameter on the cylinder, on the length difference of each point diameter value and normal diameter divided by two be exactly moving guide rail at each point with respect to the straightness error value of deciding guide rail wheel grinding point.
2. the measuring method of a motion straightness error of movable guide rail is characterized in that: decide to be provided with on the guide rail two relative top, top being contained on the dead head, dead head is contained in to be decided on the guide rail, two are equipped with a cylinder between top; On the moving guide rail emery wheel is set, emery wheel contacts with cylinder point, drives the emery wheel rectilinear motion when moving guide rail movement, and makes the emery wheel rotation, the wheel grinding cylinder, and emery wheel and cylinder contact point and cylinder center line form a plane; After the cylinder grinding, measure the cylinder diameter value of each point in the longitudinal direction, measurement promptly be that moving guide rail on this plane is with respect to the motion straightness error of grinding points; If the diameter of a certain position is a normal diameter on the cylinder, on the length difference of each point diameter value and normal diameter divided by two be exactly moving guide rail at each point with respect to the straightness error value of deciding guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101553434A CN101745871B (en) | 2009-12-16 | 2009-12-16 | Method for measuring motion straightness error of movable guide rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101553434A CN101745871B (en) | 2009-12-16 | 2009-12-16 | Method for measuring motion straightness error of movable guide rail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101745871A CN101745871A (en) | 2010-06-23 |
| CN101745871B true CN101745871B (en) | 2011-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101553434A Expired - Fee Related CN101745871B (en) | 2009-12-16 | 2009-12-16 | Method for measuring motion straightness error of movable guide rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101745871B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112212781B (en) * | 2020-09-14 | 2022-03-25 | 上海中船三井造船柴油机有限公司 | Straightness measuring device and method based on reference comparison |
| CN114952622B (en) * | 2022-06-30 | 2023-11-28 | 浙江亚微精密机床有限公司 | Compensation method for guide rail linear error |
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2009
- 2009-12-16 CN CN2009101553434A patent/CN101745871B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101745871A (en) | 2010-06-23 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Pan Xuhua Inventor after: Huang Fei Inventor before: Pan Xuhua |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: PAN XUHUA TO: PAN XUHUA HUANG FEI |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20171216 |
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| CF01 | Termination of patent right due to non-payment of annual fee |