公开(公告)号：EP2500688A1

公开(公告)日：2012-09-19

申请号：EP09851252.8

申请日：2009-11-10

申请人： Mitsubishi Heavy Industries, Ltd.

发明人： KAWAUCHI, Naoto ,  SASANO, Yuichi ,  ASANO, Shin ,  KURA, Kenji ,  MATSUSHITA, Hirokazu ,  MATSUMURA, Akihiko ,  HIGUCHI, Masaru

IPC分类号： G01B21/20 ,  G01B11/24 ,  G05B19/18 ,  G05B19/4097

CPC分类号： G01B11/24 ,  B23Q17/20 ,  B23Q17/2208 ,  B23Q17/2471 ,  G05B19/4061

摘要： Disclosed are a workpiece measuring device, a collision preventing device, and machine tool, which achieve easy acquisition of three-dimensional data relating to the shape of a workpiece, the data being used for preventing a collision between the workpiece and part of the machine tool. A measuring unit (15) that is mounted to a main shaft to which a tool for working a workpiece to be worked is attached and that scans and measures the distance to the workpiece in a noncontact manner, and a shape recognition unit (23) that generates a three-dimensional mesh structure formed by dividing space into polyhedrons, calculates coordinates of a measuring point of the workpiece on the basis of information relating to the measured distance to the workpiece, and creates a measured shape map on condition that when the ratio of the number of times the calculated measuring point is included in one unit of the three-dimensional mesh structure to the number of times the position of the workpiece corresponding to the one unit is scanned is greater than or equal to a predetermined threshold vale, the one unit is the shape of the workpiece are provided.

摘要翻译： 公开了一种工件测量装置，防碰撞装置和机床，其实现了与工件形状相关的三维数据的容易获取，该数据用于防止工件与机床的一部分之间的碰撞 。 安装在主轴上的测量单元（15），其安装有用于加工待加工的工件的工具，并以非接触方式扫描并测量到工件的距离;以及形状识别单元（23），其形状识别单元 产生通过将空间分成多面体而形成的三维网格结构，根据与被测距离相关的信息来计算工件的测量点的坐标，并且在以下条件下创建测量形状图： 将计算出的测量点包含在三维网格结构的一个单位中的次数与扫描对应于一个单位的工件的位置的次数大于或等于预定阈值阈值， 单位是提供工件的形状。

公开(公告)号：EP2500132A1

公开(公告)日：2012-09-19

申请号：EP09851275.9

申请日：2009-11-13

申请人： Mitsubishi Heavy Industries, Ltd.

发明人： YASUDA, Chiaki ,  UMEHARA, Ryuichi ,  INOUE, Atsushi ,  SHIMIZU, Nobuo ,  MATSUSHITA, Hirokazu

IPC分类号： B23Q15/12 ,  G05B19/18

CPC分类号： B23Q15/12 ,  B23Q17/0976 ,  G05B2219/37434 ,  G05B2219/37435 ,  G05B2219/45147

摘要： In the first place, the characteristic frequency of a workpiece before machining and the one at after machining are input (Step S1). In the next place, a region between the characteristic vibration of a workpiece before machining and the one after machining is set in a Campbell diagram (Step S2). Furthermore, the vibration components of a machining tool during machining are input (Step S3). Subsequently, the vibration components of a machining tool during machining are set in the Campbell diagram (Step S4). Thereafter, with respect to the region between the characteristic vibration of a workpiece before machining and the one after machining, the Campbell diagram is used to determine the rotational speeds (operating condition) of the machining tool outside the ranges where the vibration components of the machining tool resonate (Step S5). In the last place, workpiece machining is executed on the basis of the rotational speeds (operating condition) of the machining tool (Step S6). For this reason, the machined surface roughness of the workpiece can be improved, and the machining cost can be reduced.

摘要翻译： 首先，输入加工前的工件的特征频率和加工后的特征频率（步骤S1）。 接下来，将加工前的工件的特征振动与加工后的工件的特征振动之间的区域设定为坎贝尔图（步骤S2）。 此外，输入加工中的加工工具的振动分量（步骤S3）。 随后，在Campbell图中设定加工时的加工工具的振动分量（步骤S4）。 此后，关于加工前的工件的特征振动与加工后的工件的特征振动之间的区域，使用坎贝尔图来确定加工工具的转速（操作条件）在加工的振动分量的范围之外 工具共振（步骤S5）。 最后，基于加工工具的转速（工作状态）进行工件加工（步骤S6）。 因此，能够提高加工后的工件表面粗糙度，能够降低加工成本。