CN101486162A - X-Y-C three axis linkage high tracking counter shaft-crank shaft grinding machine - Google Patents
X-Y-C three axis linkage high tracking counter shaft-crank shaft grinding machine Download PDFInfo
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- CN101486162A CN101486162A CNA2009100005358A CN200910000535A CN101486162A CN 101486162 A CN101486162 A CN 101486162A CN A2009100005358 A CNA2009100005358 A CN A2009100005358A CN 200910000535 A CN200910000535 A CN 200910000535A CN 101486162 A CN101486162 A CN 101486162A
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Abstract
The invention belongs to the technical field of CNC metal cutting machine tool, and relates to a CNC grinding machine for grinding various convex geometrical cutting shapes. The grinding machine realizes high point tracing grinding through X-Y-Z three-axis linkage and achieves high precision and efficiency. The machine can grind different cutting shapes and has a production capacity equal to those of two machine tools (such as a cam shaft grinding machine and a crank shaft grinding machine). As shown in a figure in the abstract, a workpiece being grinded rotates on C axis, and when value of the C axis is c1, the x of the point (x1, y1) on a cutting shape reaches the maximum value, and namely, the point is the high point of the workpiece. A sand wheel rotates and moves along X and Y axes, and the high point of the sand wheel is m. The digital control program of the machine instructs the m point to trace and move to the point (x1, y1) and grind the point (x1, y1). When the workpiece rotates 360 DEG on the C axis, the whole cutting shape is ground. The main is mainly used for serving as a cam shaft grinding machine and a crank shaft grinding machine and improving grinding precision and efficiency.
Description
Technical field:
Metal Cutting Machine Tool, numerically control grinder, automobile engine major part production equipment.
Background technology;
High-grade digital control technology, precision machine tool designing technique, accurate manufacturing technology, active measuring technique.
Summary of the invention:
Camshaft grinding machine is used for the grinding cam, and the geometric properties of cam is non-circle; Crankshaft grinding machine is used for the grinding rod journal, and the geometric properties of rod journal is an off-centre operation.The both is the special case that convex geometry is cut shape.
The present invention is used for the numerically control grinder that grinding raised is cut shape for how much, and the new shaping principle of utilization invention can reach higher grinding accuracy and efficient.Can also make a machine tool have the production capacity of two kinds and more kinds of lathes (being camshaft grinding machine and crankshaft grinding machine).
Description of drawings:
The schematic diagram of workpiece and emery wheel when Fig. 1 is the 1st of this lathe grinding, the high point of emery wheel this moment traces into (x
1, y
1)
The schematic diagram of workpiece and emery wheel when Fig. 2 is the 2nd of this lathe grinding, the high point of emery wheel this moment traces into (x
2, y
2)
The work principle of this lathe is in the rotary course of protruding section shape its high point to be ground Cut, any given the every of protruding section shape is definite by two coordinate values (x, y) a bit (can be the data that disperse, also can be the data with function representation) rotates through at it Every any coordinate value is all becoming in the journey, all can become high point (being that x value is the point of maximum).
This lathe must be three axles (X, Y, C) interlocks. Its grinding process is as follows:
As shown in Figure 1, the O point is that the revolution center of the grinding machine headstock and tailstock (is the C axle, is The rotation center of camshaft and bent axle), also be the initial point of this lathe coordinate system XOY. Ground The protruding section shape A that cuts be around C axle rotation, on arbitrary position, cuts every on the profile of shape A Coordinate value (x is a bit arrangedi，y
i), i=1,2 ... n. At C axle value c1The time, necessarily having a bit on the curve, its x value is maximum, becomes the high point of this moment, establishes this point and is (x1，
y
1), make it for being ground a little.
Emery wheel rotates around its center M.Emery wheel can be made pursuit movement along X, Y reference axis, gets on the emery wheel with the contour m point of center M to be grinding points (the high point of this point that is emery wheel), and numerical control program makes the tracking of m point move to and is ground point (x
1, y
1) on, finish (x
1, y
1) point grinding.Cut shape afterwards and do small rotation, be i.e. C axle value c
2(see figure 2), the point that have maximum x value this moment is (x
2, y
2).Numerical control program makes the m point follow the tracks of and moves to (x
2, y
2), finish (x
2, y
2) point grinding .....The C axle rotates 360 degree, has just finished the grinding to whole section shape.
The point that as long as the corner increment of C axle is enough little, provide coordinate on the curve enough close (or accomplish through interpolation enough close), grinding goes out cuts a shape and just can meet the requirements of precision.
Lathe of the present invention can be used for the various camshafts of grinding also can be used for the various bent axles of the grinding axle class of other sections of grinding shape (can also), and the hardware of lathe need not done any change.In order grinding to go out the different shapes of cutting, need, also only be to need to use different grinding programs.
Advantage of the present invention:
1, the workpiece of the various protruding section shapes of lathe energy grinding of the present invention comprises various camshafts, various bent axle, various triangle axles or the like.
2, because a height point with emery wheel removes grinding work piece, any other point does not participate in grinding on the emery wheel, so any variation of grinding wheel diameter does not influence the grinding to the high point of workpiece, therefore can not cause error to workpiece yet, more can not remove update routine for reducing error.Existing camshaft grinding machine is not all accomplished this point.
3, along with the segmentation of C Shaft angle and the encryption of section graphic data, the grinding accuracy of Digit Control Machine Tool of the present invention can improve constantly.When being used for the grinding bent axle, the multinomial precision of product can both improve, and particularly the eccentric throw precision of each rod journal and the angle precision between each rod journal can be significantly improved.
The specific embodiment:
Need design novel lathe for implementing the present invention, promptly design X-Y-C three-shaft linkage Digit Control Machine Tool.If design middle-size and small-size lathe, need increase the Y-axis motion to grinding carriage.If the design heavy duty machine tools then need to design grinding carriage and can make X, Y, Z three-axis moving.Crucial just one, can realize that the X-Y-C three-shaft linkage gets final product.
Claims (1)
1, the Machine Tool design scheme of (1), X, Y, C three-shaft linkage
The core of this patent is to realize that grinding carriage makes two axle movement in rectangular coordinate system, by means of X, Y, C three-shaft linkage, realizes going to follow the tracks of with the height point of emery wheel the high point of grinding work piece, finishes the grinding to any protruding section shape.(the traditional camshaft grinding machine and the grinding carriage of crankshaft grinding machine are only made the rectilinear motion of X-axis or X, C two-axle interlocking.)
(2), active measurement mechanism
When the grinding bent axle, the rod journal that is ground is done eccentric rotation, and common active measurement mechanism can't be worked.The active measurement mechanism that the present invention has comprised the energy automatic lifting, advanced and retreat automatically, compensates automatically.
(3), servo central's frame
One of feature of the present invention be exactly can be on a machine tool multiple section shape of grinding.For example when the grinding bent axle, not only can the grinding rod journal, also can the grinding bearing journal.To be bearing in bearing journal on the centre frame for raising the efficiency usually during grinding.If use common centre frame, will make centre frame ineffective because bearing journal is ground little.Comprise " servo central's frame " among the present invention, it can extend automatically along with reducing of bearing journal, keeps its supporting situation constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100005358A CN101486162A (en) | 2009-01-16 | 2009-01-16 | X-Y-C three axis linkage high tracking counter shaft-crank shaft grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100005358A CN101486162A (en) | 2009-01-16 | 2009-01-16 | X-Y-C three axis linkage high tracking counter shaft-crank shaft grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101486162A true CN101486162A (en) | 2009-07-22 |
Family
ID=40889304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100005358A Pending CN101486162A (en) | 2009-01-16 | 2009-01-16 | X-Y-C three axis linkage high tracking counter shaft-crank shaft grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101486162A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101837559A (en) * | 2010-03-19 | 2010-09-22 | 北京诺思泰格精密技术有限公司 | Crank shaft grinding method and crank shaft grinding machine |
| CN102049719A (en) * | 2010-09-13 | 2011-05-11 | 湖南宇环同心数控机床有限公司 | Numerically controlled grinding machining method of camshaft |
| CN110170886A (en) * | 2019-04-19 | 2019-08-27 | 湖南师范大学 | A kind of Camshaft Grinding processing method based on T-S fuzzy control |
| CN113478332A (en) * | 2021-06-03 | 2021-10-08 | 叶金明 | Auxiliary correcting device for edge grinding processing of side edge of optical lens |
-
2009
- 2009-01-16 CN CNA2009100005358A patent/CN101486162A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101837559A (en) * | 2010-03-19 | 2010-09-22 | 北京诺思泰格精密技术有限公司 | Crank shaft grinding method and crank shaft grinding machine |
| CN102049719A (en) * | 2010-09-13 | 2011-05-11 | 湖南宇环同心数控机床有限公司 | Numerically controlled grinding machining method of camshaft |
| CN102049719B (en) * | 2010-09-13 | 2012-07-04 | 湖南宇环同心数控机床有限公司 | Numerically controlled grinding machining method of camshaft |
| CN110170886A (en) * | 2019-04-19 | 2019-08-27 | 湖南师范大学 | A kind of Camshaft Grinding processing method based on T-S fuzzy control |
| CN110170886B (en) * | 2019-04-19 | 2021-01-19 | 湖南师范大学 | Camshaft grinding machining method based on T-S fuzzy control |
| CN113478332A (en) * | 2021-06-03 | 2021-10-08 | 叶金明 | Auxiliary correcting device for edge grinding processing of side edge of optical lens |
| CN113478332B (en) * | 2021-06-03 | 2023-09-01 | 深圳市微晶光学科技有限公司 | Auxiliary correction device for side edge grinding of optical lens |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090722 |