CN1687853A - Iegrated precision test method for numerically controlled machine tool - Google Patents
Iegrated precision test method for numerically controlled machine tool Download PDFInfo
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- CN1687853A CN1687853A CN 200510039244 CN200510039244A CN1687853A CN 1687853 A CN1687853 A CN 1687853A CN 200510039244 CN200510039244 CN 200510039244 CN 200510039244 A CN200510039244 A CN 200510039244A CN 1687853 A CN1687853 A CN 1687853A
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Abstract
The invention discloses a simple and convenient, effective and practical method for checking the synthetic accuracy of a digital controlled machine tool, firstly cutting the testing material in a transverse cutting mode to manufacture a concave ball with steps, wherein as cutting, it can adopt three modes of cutting in the 45 deg. direction between X/Y axes, in the X-axis direction and in the Y-axis direction and also combine the threes modes for using; then obtaining the synthetic accuracy of the machine tool, according to the distribution of cutting lines and vibrating lines and the outline definition of step planes and transition circles. The method can accurately judge the actual processing accuracy and fineness of manufactured surface for the digital controlled machine tool, and has an extremely great value in the delivery inspection or acceptance inspection of the user for the digital controlled machine tool.
Description
One, technical field
The present invention relates to a kind of method of inspection of lathe synthesis precision, specifically a kind of inspection method of synthesis precision of numerically controlled machine tool.
Two, background technology
In the plant equipment manufacturing industry, numerically-controlled machine is the last key equipment of processing technology under normal conditions at present.In order to guarantee high-quality processing parts, quite strict requirement has just been proposed for the manufacturing accuracy of numerically-controlled machine itself.Three to the factory inspection of the digital-control boring-milling machine manufacturing works of five-axle linkage or user's acceptance inspeciton, the common method of inspection has following several:
1, geometric accuracy inspection comprises bearing accuracy, repetitive positioning accuracy and interpolation precision of adopting step gage, laser interferometer and feel of the ball instrument etc. to check lathe or the like;
2, cutting precision inspection comprises oblique side of milling round platform and 30 degree or the like, is used to check the actual machining precision of lathe;
3, in recent years, lathe manufacturing plant often adopted the protruding steel ball of the semicircle of milling diameter 60～100 to check the smooth finish of finished surface, to reflect the dynamic rate of brand-name computer bed.
The above method of inspection respectively has certain effect, but the many links in the machining precision that numerically-controlled machine is final and the smooth finish of finished surface and the machine assembling process are closely related, the existing method of inspection is all less than the actual machining precision of determination number controlled machine and the ability of processed surface smoothness exactly, as the manufacturing accuracy of bearing, bearing seat and the ball-screw of each motion feeding coordinate, nut etc. itself, assembly precision or the like.Thereby often go wrong, cause the user to add the part quality instability in man-hour, particularly in the processed complex curved surface, user's requirement can not obtain satisfying fully.
Three, summary of the invention
The method of inspection that the purpose of this invention is to provide a kind of synthesis precision of numerically controlled machine tool of simple and easy to do, effective practicality, this method be the actual machining precision of determination number controlled machine and the ability of processed surface smoothness exactly.
The objective of the invention is to be achieved through the following technical solutions:
A kind of method of inspection of synthesis precision of numerically controlled machine tool, it is characterized in that cutter adopts capable mode of cutting that the test material is cut, process the recessed ball that has step, obtain the synthesis precision of lathe according to the outline line readability of cutting line, the shake distribution of line and step plane and recessed ball transition circle, may further comprise the steps:
A) will test material is fixed on the lathe; Described test material can be selected softer metal material for use, material typically have a diameter from 40～200mm.
B) with cutter the mode that the test material adopts row to cut is cut, obtain having the recessed ball of step; Described cutter can be less ball cutter.During cutting, can adopt respectively the ball cutter along 45 ° of direction row of X/Y axle cut, the ball cutter along the X-direction row cut, the ball cutter is along three kinds of modes of Y direction cutting, use also can combine three kinds of cutting ways; The stepping amount that row is cut is 0.05m, and the cutting speed of feed is 1500～2000mm/min, and the Tool in Cutting amount is 0.05～0.2mm (cutting output is the smaller the better), amount of space 0.01～0.2mm.
C) obtain the synthesis precision of lathe according to the outline line of the distribution of cutting line in the recessed ball, shake line and step plane and recessed ball transition circle.
During judgement, whether the installation that just can draw each coordinate axis of lathe according to the readability of the outline line of the transition circle of the distribution of the cutting line on recessed ball surface, shake line and step plane and recessed ball has problems, whether the parameter setting of digital control system is suitable, thereby makes the overall precision of lathe very clear.In addition, can also adopt different speed of feed to cut, obtain the processing result under the various conditions, so that make various corresponding judgment.
Judge that the method that causes cutting line and shake line is as follows:
1,, observes the direction of cutting line and shake line along the X-direction cutting.
2,, observe the direction of cutting line and shake line along the Y direction cutting.
If at the lines of recessed ball bottom appearance perpendicular to cutting direction, the edges and corners defectiveness that step and recessed ball intersect illustrates that the Z axle is gapped.
If the clocklike striped vertical with direction of motion occur on concave spherical surface, the axle of this direction of motion of decidable is gapped.
If erratic lines appears in recessed ball bottom, may be three all has problem, all needs to adjust.
The mode that the present invention adopts row to cut will be tested material and process the recessed ball that has step, obtain the synthesis precision of lathe again according to the outline line readability of cutting line, the distribution of shaking line and step plane and recessed ball transition circle, compared with prior art, this method of inspection is simple and easy to do, the actual machining precision and the processed surface smoothness of determination number controlled machine exactly, the outgoing that guarantees numerically-controlled machine is in a higher level, thereby improves competition capability.
Four, embodiment
Embodiment 1
A kind of method of inspection of synthesis precision of numerically controlled machine tool of the present invention, during trial cut, the speed of mainshaft 〉=10000 rev/min at first will be tested material and will be fixed on the lathe; Can select for use metallic copper as the test material, the diameter of material is 40mm; Cut along 45 ° of direction row of X/Y axle with the ball cutter then, the stepping amount is 0.05m, cutting speed of feed 1500mm/min, and Tool in Cutting amount 0.05 obtains having the recessed ball of step; Obtain the synthesis precision of lathe at last according to the outline line of cutting line, the distribution of shaking line and step plane and recessed ball transition circle in the recessed ball.
Embodiment 2
A kind of method of inspection of synthesis precision of numerically controlled machine tool of the present invention, during trial cut, the speed of mainshaft 〉=10000 rev/min at first will be tested material and will be fixed on the lathe; Can select for use metallic copper as the test material, the diameter of material is 100mm; Cut along the X-direction row with the ball cutter then, the stepping amount is 0.05m, cutting speed of feed 1800mm/min, and Tool in Cutting amount 0.1 obtains having the recessed ball of step; Obtain the synthesis precision of lathe at last according to the outline line of cutting line, the distribution of shaking line and step plane and recessed ball transition circle in the recessed ball.
Embodiment 3
A kind of method of inspection of synthesis precision of numerically controlled machine tool of the present invention, during trial cut, the speed of mainshaft 〉=10000 rev/min at first will be tested material and will be fixed on the lathe; Can select for use metallic copper as the test material, the diameter of material is 200mm; Cut along the Y direction row with the ball cutter then, the stepping amount is 0.05m, cutting speed of feed 2000mm/min, and Tool in Cutting amount 0.2 obtains having the recessed ball of step; Obtain the synthesis precision of lathe at last according to the outline line of cutting line, the distribution of shaking line and step plane and recessed ball transition circle in the recessed ball.
Among the present invention, for more accurate, intactly obtain the synthesis precision of lathe, according to actual conditions, the cutting way among embodiment 1, embodiment 2 and the embodiment 3 can use separately, also can be used in combination.
Claims (7)
1, a kind of method of inspection of synthesis precision of numerically controlled machine tool, it is characterized in that cutter adopts capable mode of cutting that the test material is cut, process the recessed ball that has step, obtain the synthesis precision of lathe according to the outline line readability of cutting line, the shake distribution of line and step plane and recessed ball transition circle, may further comprise the steps:
A) will test material is fixed on the lathe;
B) with cutter the mode that the test material adopts row to cut is cut, obtain having the recessed ball of step;
C) obtain the synthesis precision of lathe according to the outline line of the distribution of cutting line in the recessed ball, shake line and step plane and recessed ball transition circle.
2, the method for inspection of synthesis precision of numerically controlled machine tool according to claim 1 is characterized in that: the material of test steps A) is the soft metal bar, and the diameter of material is 40～200mm.
3, the method for inspection of synthesis precision of numerically controlled machine tool according to claim 1 is characterized in that: cutter step B) is the ball cutter.
4, the method for inspection of synthesis precision of numerically controlled machine tool according to claim 1 is characterized in that: when cutting step B), adopt the ball cutter to cut along 45 ° of direction row of X/Y axle.
5, the method for inspection of synthesis precision of numerically controlled machine tool according to claim 1 is characterized in that: when cutting step B), adopt the ball cutter to cut along the X-direction row.
6, the method for inspection of synthesis precision of numerically controlled machine tool according to claim 1 is characterized in that: when cutting step B), adopt the ball cutter to cut along Y direction.
7, according to the method for inspection of claim 4,5 or 6 described synthesis precision of numerically controlled machine tool, it is characterized in that: the cutting speed of feed is 1500～2000mm/min, and the Tool in Cutting amount is 0.05～0.2mm, amount of space 0.01～0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510039244 CN1687853A (en) | 2005-05-10 | 2005-05-10 | Iegrated precision test method for numerically controlled machine tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510039244 CN1687853A (en) | 2005-05-10 | 2005-05-10 | Iegrated precision test method for numerically controlled machine tool |
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| CN1687853A true CN1687853A (en) | 2005-10-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699761A (en) * | 2012-06-27 | 2012-10-03 | 电子科技大学 | Error identification method of five-axis numerically controlled machine tool based on S-shaped test specimen |
| CN105710723A (en) * | 2016-03-28 | 2016-06-29 | 成都飞机工业（集团）有限责任公司 | Trial cutting device for analysis of workpiece surface quality problems and analysis method |
-
2005
- 2005-05-10 CN CN 200510039244 patent/CN1687853A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699761A (en) * | 2012-06-27 | 2012-10-03 | 电子科技大学 | Error identification method of five-axis numerically controlled machine tool based on S-shaped test specimen |
| CN102699761B (en) * | 2012-06-27 | 2014-09-03 | 电子科技大学 | Error identification method of five-axis numerically controlled machine tool based on S-shaped test specimen |
| CN105710723A (en) * | 2016-03-28 | 2016-06-29 | 成都飞机工业（集团）有限责任公司 | Trial cutting device for analysis of workpiece surface quality problems and analysis method |
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