CN1122018A - 带计算机仿真的nc控制精加工方法及其所用的装置 - Google Patents
带计算机仿真的nc控制精加工方法及其所用的装置 Download PDFInfo
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Abstract
本发明提供一种带计算机仿真的NC控制精加工方法和该方法所用的装置。该方法包括:根据由CAD所获得的设计数据和预先存储于数据库的加工条件,编制加工程序的工序;从加工现场获得加工状态信息的工序;根据所述加工程序与加工状态信息进行加工状态仿真的工序;根据所述加工程序与加工状态,编制加工命令的工序,并且根据该加工命令进行所述NC控制。因而即使对于毫米级以下的微小形状也能用肉眼观察,从而在加工过程中可简单地进行修正。
Description
本发明涉及一种对微小形状,例如毫米级以下的微小型状加工,使之便于进行的带计算机仿真的NC控制精加工方法以及该方法所使用的装置。
利用NC(数控)控制加工中心进行切削加工或放电加工,以前是如图6所示,将由CAD得到的设计数据经CAM变换为加工信息,以联机或脱机方式将此加工信息,传送至上述加工中心,进行加工的。
但以这种加工方法进行毫米级以下的细微加工时,就有这种情况,即加工物晶粒边界、杂质等以往不成为问题的微细物,都给加工的进行带来影响,只要是开环的加工指令就不按照预先设计进行加工,而需要修正,但加工对象实在细微,存在着既不能象以往那样用眼睛观察,又不能在加工进行当中进行修正这种问题。另一方面,也考虑过从加工装置上取下加工物,测量后再加工这种办法,但加工物实在是微小,所以这种办法也不可能简单。
因此,本发明的目的在于提供一种对微小形状例如毫米级以下的微小形状,可以用肉眼观察,并且根据需要也可用声音感觉,加工过程中的修正也可简单进行的带计算机仿真的NC控制精加工方法以及该方法所用的装置。
用以解决上述课题的本发明的概要如图1所示,即设法检查识别NC加工机械运行的加工现场的加工状态信息,进行加工状态的计算机仿真,将它反映到CAM的加工命令中。本发明提供如下所述的带计算机仿真的NC控制精加工方法与该方法所用的加工装置。
具体来说,本发明的带计算机仿真的NC控制精加工方法是一种由NC控制进行细微加工的方法,其特征在于包括以下工序:根据由CAD得到的设计数据和预先存储在数据库中的加工条件编制加工程序的工序;从加工现场获得加工状态信息的工序;根据所述加工程序与加工状态信息进行加工状态仿真的工序;根据所述加工程序和加工状态仿真编制加工命令的工序,从而根据此加工命令进行所述NC控制。
这时,加工程序编制当中最好还参照来自加工现场的加工状态信息,或是参照作为加工条件的工具尺寸形状信息和从加工现场作为2.5维信息获得的加工物和/或加工工具的尺寸形状信息,设计成剩余加工量为最小。
本发明的带计算机仿真的NC控制精加工方法有的还具备根据加工状态信息诊断加工异常状态的工序,或者还具有成型修整加工工具的工序,以根据从加工现场获得的加工状态信息进行工具的成型修整。
所述加工状态信息是例如加工现场的声音信息,加工装置驱动电流信息以及被加工物和/或加工工具的尺寸形状信息当中的至少一种。
本发明的带计算机仿真的NC控制精加工装置是一种用以实施上述带计算机仿真的NC控制精加工方法的NC控制精加工装置,其特征在于包括:对被加工物进行加工的加工工具;驱动该加工工具的驱动装置,控制该驱动装置的NC控制装置;除屏幕显示功能之外还有命令指示功能的显示命令装置;综合控制所述各装置的控制界面,所述显示命令装置不仅可以分别显示CAD数据、加工条件、加工程序、加工现场信息以及加工状态仿真结果,而且可以指示对于所述控制界面的命令。
所述控制界面是一种多任务控制界面,可以进行以下任务,例如,将由CAD所获得的设计数据变换为NC控制用信息的任务;参照预先存储在数据库中的加工条件信息的任务;根据该加工条件信息与所述变换的NC控制信息编制加工程序的任务;从加工现场获得加工状态信息的任务;根据该加工状态信息与所述加工程序进行加工状态仿真的任务;根据该仿真结果与所述加工程序编制NC控制用加工命令的任务;按照该加工命令控制加工工具驱动装置的任务。控制界面有的还包括根据加工状态信息诊断加工异常状态的任务,有的还包括加工工具的成型修整装置,以便根据从加工现场获得的加工状态信息进行工具的成型修整。该装置还包括采集加工现场声音信息的声音监听器,采集加工装置驱动电流信息的电流计,采集被加工物和/或加工工具尺寸形状信息的装置当中的至少一种。这里,作为采集被加工物和/或加工工具尺寸形状信息的装置是摄像机,激光显微镜或三维数字读出器。
本发明所指的加工例如是切削加工和放电加工。
本发明在由NC控制进行细微加工时,可用计算机仿真在监视器上显示加工部的加工进展状况。而且,根据需要还可以靠声音来感觉加工部的加工进展状况。
图1是概略示意本发明的说明图。
图2是表示本发明带计算机仿真的NC控制精加工方法一实施例的框图。
图3是表示当实施上述方法时设定加工工具过程的说明图。
图4是表示本发明带计算机仿真的NC控制精加工装置一实施例的框图。
图5是示意上述装置控制界面的说明图。
图6是概略示意现有技术的说明图。
以下详细说明本发明实施例,但本发明并不限于以下实施例。
图2示出本发明带计算机仿真的NC控制精加工方法的实施例。虽未图示,但该方法与以往相同,也利用CAD作图,通过CAM将由CAD得到的设计数据变为加工命令,送到加工装置的NC控制子系统中。
而且,该方法在CAM中参照预先存储在数据库中的加工条件,从上述设计数据取出加工顺序和加工路径等,编制加工程序。这里,加工条件意味着加工工具的尺寸形状等前提条件。编制加工程序最好是参照作为加工条件的工具尺寸形状信息和从加工现场当作2.5维信息获得的被加工物和/或加工工具的尺寸形状信息,设计使得剩余加工量为最小。例如,如图3所示,进行长方形加工时,首先利用大圆形工具加工三个圆,接下来利用中圆形状工具在各圆相重合部分加工四个圆,最后则利用小圆形工具,加工轮廓部分。
另一方面,从加工工具工作的加工现场检查识别声音信息,加工装置控制电流波形等控制信息,被加工物和加工工具的尺寸形状等加工状态信息,送入CAM中。而且,根据所述加工程序与加工状态信息进行加工状态的仿真。进行这种仿真时,也参照前面所述的加工条件信息。本发明中,看到仿真结果与预定的加工进展不同时,就通过再一次进行或重复进行环路①的顺序,来修正加工程序。
接下来,根据按上述办法编制的加工程序与加工状态仿真,编制加工命令,通过将此加工命令送入NC控制子系统,来控制加工装置的驱动。编制加工命令时,操作者可以用肉眼从上述仿真结果中看到加工进展状况,所以还考虑此观察结果来确定加工命令。这时,通常是参照仿真结果来确定加工命令,以便剩余加工量为最小。
此外,根据所得到的加工状态信息来诊断有无加工异常状态,从而判断加工状态是否可以确认,当不予确认时,就通过再次进行或重复进行环路②,来修正加工命令。
加工状态可以确认时,就停止加工,转至成品检查工序。
虽未图示,但本实施例与通常的加工相同,具有加工工具成型修整工序,该工序参照从加工现场获得的加工状况信息,具体来说,参照被加工物和/或加工工具的尺寸形状信息和电流波形等控制信息,进行加工工具的成型修整。
接下来,图4示出本发明带计算机仿真的NC控制精加工装置的实施例。加工装置在XY驱动台1上具有微型放电加工机2。微型放电加工机2具有对被加工物进行加工的加工工具21,驱动该加工工具21的驱动装置22。XY驱动台1上不仅设有工具检查用3维数字读出器3和被加工物检查用3维数字读出器,而且还设有作为加工工具成型修整装置的修整夹具5。该修整夹具5可根据从加工现场获得的加工状态信息对工具进行成型修整。
该加工装置还包括作为显示命令装置的工程工作站(EWS)6和内置有综合控制该加工装置各个分装置的控制界面的放电加工机控制装置7。显示命令装置除图像显示功能还具有命令指示功能,不仅可以分别显示CAD数据、加工条件、加工程序、加工现场信息和加工状态仿真结果,而且还可以向所述控制界面指示命令。这种显示命令装置最好是个人计算机。如图所示,XY驱动台1上载置有被加工物A。
上述计算机界面是多任务控制界面,如图5所示可以进行以下任务:将由CAD所获得的设计数据变换为NC控制用信息的任务11;参照预先存储于数据库的加工条件信息的任务12;根据该加工条件信息与前述变换的NC控制信息编制加工程序的任务13;从加工现场获得加工状态信息的任务14a、14b和14c;根据该加工状态信息与前述加工程序进行加工状态仿真的任务15;根据该仿真结果与前述加工程序编制NC控制用加工命令的任务16;按照该加工命令控制加工工具驱动装置的任务17。此计算机界面还包括根据加工状态信息诊断加工异常状态的任务18。
要使上述任务14a、14b和14c得以执行,该加工装置包括采集加工现场声音的声音监听器8和采集加工装置驱动电流信息的电流计9。另外前面提到过,还包括采集被加工物A和加工工具22尺寸形状信息的三维数字读出器3、4。
按照本发明,因为以附带计算机仿真的方式由NC控制进行精加工,即便对于微小形状,例如是毫米级以下的微小形状,也可以用肉眼观察加工的进展,加工过程当中也可简单地进行修正。根据需要,加工的进展也可以由声音来感觉。因此,本发明的方法·装置可以让加工操作者对加工进展状况作适当的判断,因而对加工操作者来说,可以做到边受指导边进行加工,故而能够极大地提高加工精度。因此本发明的方法·装置就加工效果而言,可带来以下效果:①即便受晶粒边界和杂质等微细物影响而使加工进展出现变化,也可以对它进行修正;②可以做到进行加工时,避免使加工状态发生变化;③还可以设计在时间、价格方面最为有利的加工方法。除去以上效果,就其另外效果而言,加工操作者可以通过图像信息和根据需要通过声音信息来把握加工的进展,这也意味着,本发明的方法·装置对于加工操作者来说,如同获得一种与加工装置对话那样气氛的工作环境,因而本发明还带来为加工操作者提供合适的工作环境这种效果。
Claims (11)
1.一种带计算机仿真的NC控制精加工方法,利用NC控制进行细微加工,其特征在于包括:根据由CAD所获得的设计数据和预先存储于数据库中的加工条件,编制加工程序的工序;从加工现场获得加工状态信息的工序;根据所述加工程序和加工状态信息进行加工状态仿真的工序;根据所述加工程序和加工状态仿真,编制加工命令的工序,并且根据该加工命令进行所述NC控制。
2.如权利要求1所述的带计算机仿真的NC控制精加工方法,其特征在于,编制加工程序时还参照来自加工现场的加工状态信息。
3.如权利要求2所述的带计算机仿真的NC控制精加工方法,其特征在于,编制加工程序时,参照作为加工条件的工具尺寸形状信息和从加工现场作为2.5维信息获得的被加工物和/或加工工具尺寸形状信息,设计成剩余工作量为最小。
4.如权利要求1至3任一项所述的带计算机仿真的NC控制精加工方法,其特征在于,还包括根据加工状态信息诊断加工异常状态的工序。
5.如权利要求1至4任一项所述的带计算机仿真的NC控制精加工方法,其特征在于,还包括对加工工具成型修整的工序,根据从加工现场获得的加工状态信息,进行工具的成型修整。
6.如权利要求1至5任一项所述的带计算机仿真的NC控制精加工方法,其特征在于,加工状态信息是加工现场的声音信息、加工装置驱动电流信息以及被加工物和/或加工工具尺寸形状信息当中的至少一种。
7.一种带计算机仿真的NC控制精加工装置,是用以实施如权利要求1至6任一项所述方法的NC控制精加工装置,其特征在于具有:对被加工物进行加工的加工工具;驱动该加工工具的驱动装置;控制该驱动装置的NC控制装置;除图像显示功能还有命令指示功能的显示命令装置;综合控制所述各装置的控制界面,所述显示命令装置不仅可以分别显示CAD数据、加工条件、加工程序、加工现场信息和加工状态仿真结果,还可以指示对于所述控制界面的命令。
8.如权利要求7所述的带计算机仿真的NC控制精加工装置,其特征在于,计算机界面是一种可以执行以下任务的多任务控制界面,这些任务包括:将由CAD所获得的设计数据变换为NC控制用信息的任务;参照预先存储在数据库中的加工条件信息的任务;根据该加工条件信息和所述变换的NC控制信息,编制加工程序的任务;从加工现场获得加工状态信息的任务;根据该加工状态信息与所述加工程序进行加工状态仿真的任务;根据该仿真结果与所述加工程序编制NC控制用加工命令的任务;以及按照该加工命令控制加工工具的驱动装置的任务。
9.如权利要求8所述的带计算机仿真的NC控制精加工装置,其特征在于,计算机界面还包括根据加工状态信息诊断加工异常状态的任务。
10.如权利要求7至9任一项所述的带计算机仿真的NC控制精加工装置,其特征在于,还具有加工工具的成型修整装置,可以根据从加工现场获得的加工状态信息对工具进行成型修整。
11.如权利要求7至10任一项所述的带计算机仿真的NC控制精加工装置,其特征在于,还具有采集加工现场声音信息的声音监听器,采集加工装置驱动电流信息的电流计和采集所述被加工物和/或加工工具尺寸形状信息的装置当中的至少一种,采集所述被加工物和/或加工工具尺寸形状信息的装置为摄像机、激光显微镜或三维数字读出器。
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CN107111297A (zh) * | 2014-10-31 | 2017-08-29 | 电子云工业4.0科技公司 | 用于由至少一台计算机数控机器加工的工件的部件分析的计算机实现方法 |
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Also Published As
Publication number | Publication date |
---|---|
DE69508297D1 (de) | 1999-04-22 |
DE69508297T2 (de) | 1999-11-11 |
KR100201020B1 (ko) | 1999-06-15 |
KR950026598A (ko) | 1995-10-16 |
EP0671677A1 (en) | 1995-09-13 |
EP0671677B1 (en) | 1999-03-17 |
US5808432A (en) | 1998-09-15 |
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