专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH04152014A MACHINING METHOD BY MEANS OF BALL END MILL 失效
公开(公告)号：JPH04152014A
公开(公告)日：1992-05-26
申请号：JP27322090
申请日：1990-10-15
申请人： MITSUBISHI HEAVY IND LTD
发明人： KUWABARA HARUYOSHI , EGAWA TSUNEO , FUJII EIJI , OKAMURA MAKOTO , FUKASAKU SHINICHI
IPC分类号： B23C3/00 , B23C5/10
摘要： PURPOSE:To prevent lowering of working-shape accuracy, when the three- dimensional machining of a metal mold or the like is performed by a ball end mill provided with both a circular-arc shaped cutting edge and a flat shaped cutting edge, by detecting and correcting the shortage of cutting amount of the flat shaped cutting edge through the machine tool side. CONSTITUTION:The purpose of the bed 1 of a ball end mill machining device is to support a work 2 to be cut, and guide parts 3 are formed on both sides thereof. The lower end parts of columns 4 are movably fitted into the guide parts 3. On the upper part of the columns 4, a cross-rail 5 is provided, and thereon a saddle 6 is movably mounted. To the saddle 6, a main spindle head 9 provided with a main spindle 8 is movably provided via a guide member 7, and to the main spindle 8, a ball end mill 10 is fitted. Further, to this machining device, a control unit 11 for controlling the moving amount of the main spindle 8 is connected. While a circular-arc shaped cutting edge 12 and a flat shaped cutting edge 13 are provided to the ball end mill 10, when cutting is carried out by the cutting edge 13, the shortage of the cutting amount of the cutting edge 13 is detected and corrected through the machining device side.

2. 发明专利

JPH0423175A CURVED SURFACE GENERATING METHOD USING DIGITIZATION DATA 失效
公开(公告)号：JPH0423175A
公开(公告)日：1992-01-27
申请号：JP12702590
申请日：1990-05-18
申请人： MITSUBISHI HEAVY IND LTD
发明人： OKAMURA MAKOTO , ICHIKAWA KATARU
IPC分类号： G06F3/041 , G05B19/4097 , G06F3/03 , G06F3/048 , G06F17/50
摘要： PURPOSE:To show a curved surface with high accuracy and in a beautiful shape free from a slackened salient angle part by providing the patch lines at both reentrant and salient angle parts of a shape. CONSTITUTION:The digitization data 7 on a three-dimensional shape body 2 obtained by a digitizer 1 is stored in a floppy disk 3 and then sent to an arithmetic unit 4. The unit 4 detects a reentrant angle part 10 of a shape based on the curvature of the point group data and the angle change. Then the unit 4 obtains a unit normal vector N is obtained at each point of the point group data 7. This data 7 is offset downward with use of the vector N and a salient angle part 11 is detected to the offset point group data 7'. The patch lines are provided to both parts 10 and 11 for generation of a curved surface. Then a cutter path is calculated to the curved surface. As a result, an accurate part 11 is obtained and the patch line accuracy is improved.

3. 发明专利

JPH0496804A TOOL ROUTE CALCULATING DEVICE 失效
公开(公告)号：JPH0496804A
公开(公告)日：1992-03-30
申请号：JP21375890
申请日：1990-08-14
申请人： MITSUBISHI HEAVY IND LTD
发明人： OKAMURA MAKOTO , ICHIKAWA KATARU
IPC分类号： G05B19/4093
摘要： PURPOSE:To prevent biting-in in the outer peripheral part of a curved surface by outputting a point (Z, Y, Z1) in the case of Z1>Z0 where Z0 is the height of a tool obtained by contact calculation of the curved surface and Z1 is that obtained by contact calculation of the outer peripheral line of the curved surface. CONSTITUTION:An outer peripheral line 5 is extracted from curved surface data 4, and the tool position (height) determined by contact calculation between the tool form and the curved surface 4 is denoted as Z1. The tool position (height) determined by contact calculation between the tool form and the curved surface outer peripheral line 5 is denoted as Z0. A discriminating block discriminates Z1>Z0 or Z1 Z0, the tool position (X, Y, Z1) is outputted because the contact position of the tool is in the curved surface except the outer peripheral part. In the case of Z1

4. 发明专利

JPH03113509A PRODUCTION OF PATH DATA ON CORNERING WORKING TOOL 失效
公开(公告)号：JPH03113509A
公开(公告)日：1991-05-14
申请号：JP25057389
申请日：1989-09-28
申请人： MITSUBISHI HEAVY IND LTD
发明人： OKAMURA MAKOTO , ICHIKAWA KATARU
IPC分类号： G05B19/4093
摘要： PURPOSE:To obtain the tool path data for sure working of a path covering a start point through an end point by setting the end point in addition to the start point and a 2nd point. CONSTITUTION:A path 02 serving as a tool path is calculated in the direction crossing a line 01 of the corner to be cut. A cutting start point P1 and a 2nd point P2 are pointed on the line 01 based on the displayed data on the path 2. At the same time, a cutting end point Pn is pointed as necessary. Then an angle change theta is obtained out of a group of points forming each path 02. Then a curvature radius (r) is calculated for decision of a corner position, and a point train of the obtained corner is smoothened. These point trains are connected together via the curves of a quadratic expression, a cubic expression, etc., together with calculation of the tolerance. Furthermore the points Pn+1 - Pn+4 are produced between the points P1 and Pn. As a result, the tool path data of high quality is surely obtained in a designated range.

5. 发明专利

JPH02301806A CURVED SURFACE CREATING METHOD BASED ON DIGITIZED DATA 失效
公开(公告)号：JPH02301806A
公开(公告)日：1990-12-13
申请号：JP12143189
申请日：1989-05-17
申请人： MITSUBISHI HEAVY IND LTD
发明人： OKAMURA MAKOTO
IPC分类号： B23Q15/00 , G05B19/4097
摘要： PURPOSE:To accurately express the shape of an object with a less number of patches even when the object has a projecting section by drawing a patch line at the location of line data separately designated by a method of pencil copying data, etc., by using the line data as reference lines and making curved surface approximation to a three-dimensional shape. CONSTITUTION:The surface point group data 9 and pencil data 10 of an object obtained by means of a digitizer 1 are sent to an arithmetic unit 5 which automatically detects a concave angle from the data 9 and creates a curved surface having patch lines along both the concave angle and a convex angle by using the pencil data 10 also. The pencil data 10 are obtained by designating the convex angle section on a graphic display, etc., where the point group data obtained by means of the digitizer 1 are displayed and, at the same time, digitizing the periphery of the convex angle section in a pencil copying mode. Therefore, a curved surface which can accurately express a three-dimensional shape with a less number of patches can be created.

6. 发明专利

JPS6432308A COPYING DIGITIZING SYSTEM 失效
公开(公告)号：JPS6432308A
公开(公告)日：1989-02-02
申请号：JP18777587
申请日：1987-07-29
申请人： MITSUBISHI HEAVY IND LTD
发明人： OKAMURA MAKOTO
IPC分类号： G05B19/408
摘要： PURPOSE:To shorten the copying digitizing job time by using a digitizing point group data processor to produce the surface data from the NC data obtained based on the point group data and calculating a working bus having an optional cutting direction and an optional pick value. CONSTITUTION:A digitizing point group data processor 6 of a digitizing system outputs the NC data used for the surface working and drives an NC machine tool 9 via a floppy disk 7 or a DNC 8. When a correction is desired to the surface shape after the surface working, the surface shape is corrected by a graphic correction/surface offset part 6d. Then the NC data is outputted for working the corrected surface and the working is given again. Furthermore, it is possible to freely output the working NC data of the remote side or the NC data on the tools of different diameters by means of a male/female inverting function based on the original surface data. As a result, a part having a slow form change of a copying model 10 is copied with a rough pick and only a part having a sudden form change is copied with a fine pick respectively.

7. 发明专利

JPH06194132A OPTICAL MEASURING METHOD 失效
公开(公告)号：JPH06194132A
公开(公告)日：1994-07-15
申请号：JP34408292
申请日：1992-12-24
申请人： MITSUBISHI HEAVY IND LTD
发明人： OKAMURA MAKOTO
IPC分类号： G01B11/24 , G06T1/00 , G06T7/60 , G06F15/62 , G06F15/64 , G06F15/70
摘要： PURPOSE:To automate measurement by drawing a vertical line to a straight line connecting the front end face and rear end face of the coordinate value of the mea sured face obtained from the slit light on the measured face so as to obtain a slit light irradiation angle for the following measurement, and moving a measuring unit in such a way that the irradiation angle with the slit light becomes the obtained irradiation angle. CONSTITUTION:With slit light 20 from an optical measuring unit 14, the surface of a measured object 17 is irradiated so as to obtain the coordinate value of an image on a cross section line 21 projected on a camera. The point range coordinate value of the image is obtained by an image processing device. In a control device, the front end point (a) and rear end point (b) of the point range coordinate value are obtained, and a straight line connecting a, b is drawn. A vertical line to this straight line is then set so as to obtain an angle theta formed by this vertical line and the optical axis of the slit light. The next light irradiation angle is determined as theta, and each drive mechanism is instructed of the necessary moving quantity of each shaft so that the irradiation angle with the slit light 20 becomes theta. The unit 14 is moved and placed in the state of measuring the following place of the cross section line 21 so as to enable continuous automatic measurement along the long cross section line 21.

8. 发明专利

JPH03214208A COPYING DIGITIZING DEVICE 失效
公开(公告)号：JPH03214208A
公开(公告)日：1991-09-19
申请号：JP833790
申请日：1990-01-19
申请人： MITSUBISHI HEAVY IND LTD
发明人： OKAMURA MAKOTO , MURASHIGE EIJI
IPC分类号： G05B19/408 , G05B19/4097
摘要： PURPOSE:To accurately form a cornering part by designating a desired corner part where a cornering work is carried out after the surface data is produced by a digitizing point group data processor based on the point group data. CONSTITUTION:A digitizing point group data processor 6 is added and a cornering cutting NC data production part 6f designates a desired corner part to be cut with bite among those corner parts of a working subject surface and produces the NC data on the designated corner part. In regard of the designated corner part, the NC data produced by the part 6f is used in place of the NC data produced by a surface working NC data production part 6d. Thus it is possible to perform the working to carry out the biting through a model surface and the working that uses a tool having an R smaller than a stylus used for a digitizing operation.

9. 发明专利

JPH04181404A NC DATA CALCULATOR FOR POLE END MILL 失效
公开(公告)号：JPH04181404A
公开(公告)日：1992-06-29
申请号：JP30881790
申请日：1990-11-16
申请人： MITSUBISHI HEAVY IND LTD
发明人： OKAMURA MAKOTO , ICHIKAWA KATARU , KANAZAWA YOSHIAKI
IPC分类号： G05B19/4093
摘要： PURPOSE:To easily calculate NC data to a pole end mill having a flat part at the head by providing a longitudinal cross section calculating means, first and second distance calculating means and specified extracting means. CONSTITUTION:A longitudinal cross section calculating means 5 sets longitudinal cross sections at prescribed intervals to a pole end mill 1 having a work surface and a flat part 2 and extracts the shape of a circular arc part and the shape of a linear part from these longitudinal cross sections. Distance calculating means 7 and 8 respectively calculate the height of a machine tool center in the state of contacting the circular arc part to the cross sectional line of the work surface and the height of the tool center in the state of contacting the linear part to the cross sectional line of the work surface. Further, a maximum value extracting means 9 extracts a maximum value from the values of the heights of the tool center calculated corresponding to all the longitudinal cross sections. Thus, the NC data can be easily calculated to the pole end mill 1 having the flat part 2 at the head.

10. 发明专利

JPH01147704A PROFILING DIGITIZING DEVICE 失效
公开(公告)号：JPH01147704A
公开(公告)日：1989-06-09
申请号：JP30591487
申请日：1987-12-04
申请人： MITSUBISHI HEAVY IND LTD
发明人： OKAMURA MAKOTO , MURASHIGE EIJI
IPC分类号： G06F3/041 , B23Q15/00 , G05B19/18 , G05B19/4097 , G06F3/03 , G06F3/048 , G06F17/50
摘要： PURPOSE:To prevent a duplicated processing at the time of the NC data generation of a duplicated part by generating the NC data for the processing based on surface data, and adjusting entire profiling and partial profiling in duplicated digitizing. CONSTITUTION:In a digitized group data processing part 6, a surface data generating part 6b generates the surface data based on point group data, and a surface data correcting part 6c corrects a partially profiled frame line so as to correspond to an entirely profiled surface when the duplicated digitizing is carried out. Further, based on the surface data generated by the generating part 6b or the correcting part 6c, a processing-use-NC data generating part 6d calculates an arbitrary cutting method and a picking quantity, and generates the NC data. Thus, the device outputs the NC data to process the surface, the drives a floppy disk 7 or an NC machine tool 9. Consequently, even when the duplicated digitizing is carried out, a processing error does not occur, and the duplicated processing can be prevented.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式