CN102091969B - Method for setting machine tool - Google Patents
Method for setting machine tool Download PDFInfo
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- CN102091969B CN102091969B CN201010608549A CN201010608549A CN102091969B CN 102091969 B CN102091969 B CN 102091969B CN 201010608549 A CN201010608549 A CN 201010608549A CN 201010608549 A CN201010608549 A CN 201010608549A CN 102091969 B CN102091969 B CN 102091969B
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- tool setting
- tool
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000015556 catabolic process Effects 0.000 claims abstract description 4
- 230000008030 elimination Effects 0.000 claims description 3
- 238000003379 elimination reaction Methods 0.000 claims description 3
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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Abstract
The invention relates to a method for setting a machine tool. The method is a method for setting the tool in a non-contact way, in which the relatively low millivolt voltage is used as tool setting voltage, a position when air breakdown occurs between a tool noise and a tool setting plane is used as a tool setting point, and a voltage signal between two electrodes at the moment is processed to be used as a tool setting signal. A tool setting instrument designed according to the method for setting the machine tool has a simple structure, high tool setting accuracy, can avoid the damage caused by contacting the tool nose and the tool setting plane and is particularly suitable for setting a microminiature tool.
Description
Technical field
The present invention relates to a kind of machine tool presetting cutter method, particularly be applicable to the presetting cutter method of microminiature cutter.
Background technology
At present, the tool setting of trial cut method is the presetting cutter method of using always with using the tool setting gauge tool setting.Wherein the tool setting of trial cut method is through trial cut, measures and confirm position of tool tip.This method wastes time and energy, trial cut processes waste material and can produce certain wearing and tearing to cutter, and mainly by operating personnel's technical experience decision, the tool setting precision is unstable for its tool setting precision.In view of the various shortcoming of this method, it is commonplace to use tool setting gauge to carry out tool setting.
Tool setting gauge is divided into contact tool setting and contactless tool setting according to the tool setting principle and the method for utilization.Wherein, The contact tool setting is promptly with cutter point of a knife contact tool setting plane, through detect contact be the triggering signal that produces as the tool setting signal, this presetting cutter method receives the restriction of contact force (about 5-8N); Precision is lower; And be not suitable for the less cutter of tool dimension,, be prone to damage and the tool setting loss of significance because of contact force causes point of a knife like the microminiature cutter; Mostly contactless presetting cutter method is that laser type and image handle formula, realizes that cost is higher, and precision receives the restriction of optics, and precision is lower.Therefore, need the simple and higher presetting cutter method of precision of a kind of implementation.
Because heavy casting dimension is very big, profile is very irregular, generally the workpiece centering will be spent 1～2 day time in the prior art; In addition, owing to can not find the position that begins to cut, examination is walked the sky cutter and is spent 1～2 day time again.Equipment and electric power resource have been wasted.About 1～the 2mm of the diameter that the present invention utilizes laser instrument to send, the column of red light of the about 30～40m of length is set up the observable coordinate system that is made up of level and vertical beam of light on heavy-duty engine lathe.Wherein contactless presetting cutter method, but be only applicable to the tool setting operation of heavy-duty engine lathe, employed lasing light emitter is a medical laser; Optical path 1-2mm, the tool setting precision is about 5mm, and precision is too low; Do not satisfy the tool setting required precision of most machine tools, the contact presetting cutter method needs cutter point of a knife and tool setting plane contact during tool setting in addition; And need certain contact force, the existence of this contact force can cause the strain of cutter and the distortion on tool setting plane, has limited the raising of tool setting precision; And be prone to point of a knife is caused damage, especially be not suitable for the microminiature cutter tool setting.
Summary of the invention
To above-mentioned shortcoming, the objective of the invention is to propose a kind of machine tool presetting cutter method, higher tool setting precision can be guaranteed, and the damage that the point of a knife of fragility caused because of point of a knife and tool setting plane contact can be avoided in the tool setting process.
The technical scheme that the present invention adopts is such:
The first step:, two-stage is connected to respectively on tool setting gauge tool setting plane and the target cutter through the low millivolt step voltage of the power circuit output of Adjustable Output Voltage;
Second step: two inter-stage voltages are connected to signal recognition circuit after amplifying circuit amplifies several times and the processing of filter circuit elimination interfering signal, the signal that this moment, signal recognition circuit received is a high level;
The 3rd step: follow rest; When point of a knife moves nearly tool setting plane when air breakdown takes place; Two interpolar short circuits; Become low level this moment, and this signal of signal recognition circuit identification sends tool setting success index signal and is uploaded to host computer as the successful signal of tool setting and through signal indicating circuit, and digital control system record coordinate figure at this moment is the coordinate figure of point of a knife initial point on this direction.
The closure of low millivolt level tool setting voltage connects high potential for the tool setting plane in the above-mentioned first step, and cutter connects electronegative potential.
Beneficial effect of the present invention:
The method cooperates tool setting gauge structure and corresponding numerical control operating system tool setting program can realize the tool setting fast automatically to lathe tool, milling cutter, boring cutter, drill bit etc., tool setting theoretical precision 2 μ m.
The specific embodiment
Do bright specifically in the face of the present invention down.
The realization of the inventive method comprises 1-tool setting plane, the 2-cutter, and the 3-power circuit, 4-amplifies, filter circuit, 5-single-chip microcomputer and signal indicating circuit.Wherein 1-tool setting plane is the feeler block that surface roughness, hardness etc. all meet the tool setting requirement, guarantee the insulation of itself and lathe, and wants scalable when installing and move, and avoids hitting the damage of cutter to point of a knife; The 3-power circuit is drawn through A, 2 of B, can export the burning voltage of lower (mV level), as tool setting voltage; 4-amplifies, filter circuit, through the secondary reverse amplification circuit with tool setting voltage amplification several times, and through low-pass filter circuit elimination interference voltage signal wherein; 5-input and indicating circuit; Change through testing circuit input pin identification level; Send index signal (indicator lamp is bright, buzzer is louds, 1602 liquid crystal displays show) when level signal changes detecting, and be connected with the lathe host computer, write down this coordinate figure through the interface of reservation.
In tool setting when operation, be connected to tool setting plane and cutter respectively with two lead-out wires of power circuit, and the tool setting plane connects high potential, and cutter connects electronegative potential, regulates the power circuit output voltage to desired value, opens switch and can carry out tool setting.Knife rest moves, when point width is enough near from the tool setting plane, and the air breakdown short circuit, testing circuit detects low level, indication tool setting success.With this position coordinates as the coordinate figure of point of a knife at this change in coordinate axis direction.
Through the tool setting plane axially being set, can accomplish tool setting in X, Y, Z-direction at each.
Claims (2)
1. machine tool presetting cutter method is characterized in that: may further comprise the steps:
The first step:, two-stage is connected to respectively on tool setting gauge tool setting plane and the target cutter through the low millivolt step voltage of the power circuit output of Adjustable Output Voltage;
Second step: two inter-stage voltages are connected to signal recognition circuit after amplifying circuit amplifies several times and the processing of filter circuit elimination interfering signal, the signal that this moment, signal recognition circuit received is a high level;
The 3rd step: follow rest; When point of a knife moves nearly tool setting plane when air breakdown takes place; Two interpolar short circuits; Become low level this moment, and this signal of signal recognition circuit identification sends tool setting success index signal and is uploaded to host computer as the successful signal of tool setting and through signal indicating circuit, and digital control system record coordinate figure at this moment is the coordinate figure of point of a knife initial point on this direction.
2. a kind of machine tool presetting cutter method according to claim 1 is characterized in that: the closure of low millivolt level tool setting voltage connects high potential for the tool setting plane in the above-mentioned first step, and cutter connects electronegative potential.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010608549A CN102091969B (en) | 2010-12-17 | 2010-12-17 | Method for setting machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010608549A CN102091969B (en) | 2010-12-17 | 2010-12-17 | Method for setting machine tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102091969A CN102091969A (en) | 2011-06-15 |
| CN102091969B true CN102091969B (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010608549A Expired - Fee Related CN102091969B (en) | 2010-12-17 | 2010-12-17 | Method for setting machine tool |
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| Country | Link |
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| CN (1) | CN102091969B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737423A (en) * | 2013-12-04 | 2014-04-23 | 天水星火机床有限责任公司 | Accurate tool-setting method of numerical control machine tool and numerical control machine tool |
| CN104015096B (en) * | 2014-06-04 | 2016-08-24 | 南京航空航天大学 | The presetting cutter method of complex class revolving body member laying forming |
| CN104015097B (en) * | 2014-06-04 | 2016-07-13 | 南京航空航天大学 | The presetting cutter method of complex free curved surface class A of geometric unitA laying forming |
| CN107914182B (en) * | 2016-10-08 | 2020-08-25 | 比亚迪股份有限公司 | CNC highlight tool setting method |
| CN108161567A (en) * | 2017-12-27 | 2018-06-15 | 北京百奥芯科技有限公司 | A kind of new CNC machine Z-axis presetting cutter method |
| CN108381295B (en) * | 2018-02-27 | 2019-05-21 | 北京理工大学 | A kind of ultra-precise cutting or milling based on film thickness measuring in place is to the skill in using a kitchen knife in cookery |
| CN112974918B (en) * | 2021-04-15 | 2021-07-30 | 苏州维嘉科技股份有限公司 | Contact tip detecting device and method, signal processing device and method, and drilling machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4190889A (en) * | 1977-08-26 | 1980-02-26 | Toyoda-Koki Kabushiki-Kaisha | Automatic centering controller for a machine tool |
| CN201036843Y (en) * | 2007-03-06 | 2008-03-19 | 台州职业技术学院 | Numerically controlled machine tool inner tool auto-checking instrument |
| CN101612709A (en) * | 2009-07-13 | 2009-12-30 | 郑国宝 | A kind of machining center and presetting cutter method thereof |
-
2010
- 2010-12-17 CN CN201010608549A patent/CN102091969B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4190889A (en) * | 1977-08-26 | 1980-02-26 | Toyoda-Koki Kabushiki-Kaisha | Automatic centering controller for a machine tool |
| CN201036843Y (en) * | 2007-03-06 | 2008-03-19 | 台州职业技术学院 | Numerically controlled machine tool inner tool auto-checking instrument |
| CN101612709A (en) * | 2009-07-13 | 2009-12-30 | 郑国宝 | A kind of machining center and presetting cutter method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 赵玉刚等.数控刨床精密自动对刀和刀具磨损自动补偿的方法.《山东工程学院学报》.1999,(第02期), * |
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| CN102091969A (en) | 2011-06-15 |
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Granted publication date: 20121017 |