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1. 发明专利

JPS5497892A LOCATION METHOD AND DEVICE OF TOOL BLADE 失效
公开(公告)号：JPS5497892A
公开(公告)日：1979-08-02
申请号：JP486878
申请日：1978-01-19
申请人： OKUMA MACHINERY WORKS LTD
发明人： MAKINO HIROSHI , YASUBA SHIYOUICHI
IPC分类号： B23Q17/22 , B23B25/06
摘要： PURPOSE:To make possible the detection in each axial direction of X, Z with one detector by forming a movable piece for a blade contact to have the first plane parallel to the axis Z and the second plane tilted toward a tool against the fitst plane. CONSTITUTION:A turret 11 is moved from a standard position and a blade edge is contacted to the first plane of a movable piece 16 parallel to one direction out of the two. Next, the blade edge is contacted to the second plane of the movable piece which is tilted toward the tool against the first plane, and the movable piece 16 is moved in only one direction at right angles with the first plane. The detector 18 for detecting this movement detects the contact of each blade edge of tools with the said first and second planes, and the correction value in the said two directions of the blade edges of other tools against the blade edge of the standard tool is operated by the movement of the turret 11 from the standard position at time of contact. The feeding rate of a blade base 10 is adjusted according to this correction value.

2. 发明专利

JPS6016340A METHOD AND APPARATUS FOR CORRECTING TOOL IN NUMERICAL CONTROL MACHINE TOOL 失效
公开(公告)号：JPS6016340A
公开(公告)日：1985-01-28
申请号：JP12985984
申请日：1984-06-23
申请人： OKUMA MACHINERY WORKS LTD
发明人： YASUBA SHIYOUICHI , TAKESAWA ISAO
IPC分类号： B23Q15/22 , B23Q15/28 , G05B19/18
摘要： PURPOSE:To control the position of the tool by figuring out a positional value on the basis of border wear amount at the rear side of an end of the tool in the direction of feeding the tool at a position corresponding to a half of feed amount per one rotation to send the output to the input of a numerical control unit. CONSTITUTION:In a numerical control lathe, a probe 14 of an electric micrometer 13 is moved Ao by an end 16 of a tool 10 when the tool 10 is slided to a predetermined position in the direction of cut, and this Ao is a initial value of the end 16 of the tool. Also, Bo is a positional value corresponding to 1/2 of feed f of the tool 10 per one revolution in the rear side of the tool end 16 in the direction of feeding the tool 10, i.e. when Bo value in a border wear portion 17 is detected, a carriage 7 is first located at a position offset by f/2 from that in which the end 16 is detected, and then only an inner bed 8 is slided in the cut direction of the tool 10. Thus, the position of the tool can be controlled.

3. 发明专利

JPS54123674A METHOD OF AND DEVICE FOR COMPENSATING POSITIONING TEMPERATURE FOR NUMERICAL CONTROL MACHINE 失效
公开(公告)号：JPS54123674A
公开(公告)日：1979-09-26
申请号：JP3124878
申请日：1978-03-17
申请人： OKUMA MACHINERY WORKS LTD
发明人： YASUBA SHIYOUICHI
IPC分类号： B23Q15/18 , G05B19/18 , G05B19/404 , G05D3/00 , G05D3/12
摘要： PURPOSE:To accurately position in a numerical control machine by calculating the positioning error due to thermal displacement of the movable article drive feed screw of the machine with respect to the feeding therad axial temperature distribution from the temperature rise or the like of nuts and obtaining the thermal displacement from the temperature distribution to eliminate it as correction amount. CONSTITUTION:There are provided first detector 16 for detecting the temperature of a bed 1 as resistive change, and second detector 17 for detecting the temperature of a reciprocating base 11 as resistive change as mounted at the side of a feed net 10 integral with the base 11 to allow the temperature difference calculator 25 to obtain the temperature difference therebetween from the outputs of the detectors 16, 17. This temperature difference signal is fed to a corrected amount arithmetic circuit 28 through a gate 26 opened upon inputting of a corrected amount correction signal f, which circuit 28 thereupon obtains the corrected amount deltan at the coordinate value Xn at the temperature measuring point. This signal is then output through a corrected amount memory 29 to a control arithmethic circuit 21, which controls a motor drive circuit 22 by the instructed output corrected as above.

4. 发明专利

JPS5621003A AUTOMATIC MEASUREMENT AND COMPENSATION DEVICE FOR NUMERICALLY CONTROLLED MACHINE TOOL 失效
公开(公告)号：JPS5621003A
公开(公告)日：1981-02-27
申请号：JP9779079
申请日：1979-07-31
申请人： OKUMA MACHINERY WORKS LTD
发明人： YAMANAKA HIDEHARU , HAYASHI TOSHIHARU , YASUBA SHIYOUICHI
IPC分类号： B23Q15/013 , G01B7/00
摘要： PURPOSE:To compensate for the thermal displacement of the axis of a main shaft without using a reference gauge, by operating and processing the outputs of contact detectors and absolute value detector. CONSTITUTION:The output of an absolute value detector 9 for a first saddle is stored in a register at the timing of a contact signal which is generated when the stylus 24 of a contact detector 23 on the first saddle is brought into contact with a workpiece. The output of an absolute value detector 9A for a second saddle is stored in another register at the timing of a contact signal which is generated when the stylus 24A of another contact detector 23A on a second saddle 22A is brought into contact with the workpiece. The output values of both the registers are added together and operated and processed by a tool compensation calculator to determine the difference between the dimension command of the workpiece and the output of a dimension calculation means.

5. 发明专利

JPS5566706A TEMPERATURE COMPENSATING DEVICE FOR POSITIONING IN NUMERICAL CONTROL MACHINE 失效
公开(公告)号：JPS5566706A
公开(公告)日：1980-05-20
申请号：JP7891178
申请日：1978-06-29
申请人： OKUMA MACHINERY WORKS LTD
发明人： YASUBA SHIYOUICHI
IPC分类号： G01B21/00 , G05D3/12
摘要： PURPOSE:To imporove accuracy of positioning, by conducting the positioning on the basis of a value of positioning compersation sought from an amount of movement of a moving object itself. CONSTITUTION:When a signal P is given to an AND GATE19 by operation of the button, a base value ZO is given to a cmmand value resistor 13, a servo motor 4 and a screw 3 are rotated by the command value through a function generator 14, a comparator 15, a D/A converter 16 and an amplifier 17, and a table 6 is shifted. And, when the table 6 contacted a contact detector 10, a signal TS1 is put out, an output value ZXO of a position detector 5 is put into a memory 21, and a compensation coefficient is obtained by dividing 23 the value ZO with the value ZXO. A momentary output value ZX of the detector 5 is multiplied 23 by the compensation eoeffcient and the compensation output value is supplied to the comparator 15, as a result, stretch of the screw 3 is compensated to an entire range of movement of the table 6.

6. 发明专利

JPS5461377A MACHINING CENTER 失效
公开(公告)号：JPS5461377A
公开(公告)日：1979-05-17
申请号：JP12799277
申请日：1977-10-24
申请人： OKUMA MACHINERY WORKS LTD
发明人： NARUSHIMA HIROSHI , YASUBA SHIYOUICHI
IPC分类号： B23P23/02 , B23B21/00 , B23B39/14 , B23B43/00
摘要： PURPOSE:To perform drilling at the same time as turning on a work-piece set up in a dividing main shaft by employing a turning main shaft and a dividing main shaft and by also employing a drilling device that is controled separately. CONSTITUTION:A headstock 7, holding both a turning main shaft 5 and dividing main shaft 6 at the upper oblique back of the shaft 5 so that the shafts may be horizontally set and be rotatory, is clamped to a lathe bed with two pairs of contact surfaces (1, 1') (2, 2') on the longitudinal upper surface, which are higher at the backside. On each pair of the said contact surfaces are mounted two pairs of carriages 17, 33 opposed to the main shaft axis so that they may move both in the axis direction or at the right angle direction to the axes. A rool rest 19 is set up, corresponding to the said main shaft 5, on the horizontal axis sides of these carriages 17, 33. The axis of a drill head 37, set up on the side where the dividing main shaft 6 is mounted, is located by the two locations within the surface horizontal to, and parallel to the axis of the main shaft 6 and within the right angle direction through the movement of an arm 40 swiveled by an oscillating motor 41.

7. 发明专利

JPS5676357A CUTTING METHOD OF CHIP 失效
公开(公告)号：JPS5676357A
公开(公告)日：1981-06-23
申请号：JP14930079
申请日：1979-11-17
申请人： OKUMA MACHINERY WORKS LTD
发明人： YASUBA SHIYOUICHI , HANAKI YOSHIMARO
IPC分类号： B23Q5/50 , B23B25/02 , B23Q15/013
摘要： PURPOSE:To cut automatically chips having different depths of cut by a method wherein a usual depth of cut and a usual feed speed are given to one tool post while at the other tool post, a depth of cut smaller than that at the former post is given, and an oscillating feed method is overlapped with a usual feed method. CONSTITUTION:The 1st and the 2nd tool post 1, 2 are fed independently in a Z- axis direction by feed screws 6, 7 rotated by servo motors 4, 5 driven under control through the command of a numerical control unit 3 of simultaneous tetra axis control. They are fed independently in an X-axis direction by feed screws 10, 11 rotated by servo motors 8, 9 controlled through the command of the numerical control unit 3. While a usual depth of cut and a usual feed speed are given to the tool A on the 1st tool post, a depth of cut smaller than that given on the 1st tool post is given and offset in an X-axis direction and an oscillating feed is overlapped on the usual feed speed.

8. 发明专利

JPS55125902A LOADING METHOD FOR SIMULTANEOUS FOURRAXIS NUMERICAL CONTROLLED LATHE 失效
公开(公告)号：JPS55125902A
公开(公告)日：1980-09-29
申请号：JP3484079
申请日：1979-03-23
申请人： OKUMA MACHINERY WORKS LTD
发明人： YASUBA SHIYOUICHI , ITOU KOUJI
IPC分类号： B23B15/00 , G05B19/418
摘要： PURPOSE:To facilitate the loading of work having different dimension by allowing a work to be interposed through simultaneous control of the position of two tool rests by means of N.C. controller and by setting the transfer position of the work in the nipped state. CONSTITUTION:Carriages 7, 22 are simultaneously transferred in the same direction to the Z axis by the instruction described above 32, and tool rests 10, 25 are simultaneously transferred in the same direction to the X axis, and a work 6 is inserted into a chuck 5, and positioned at holding position. The tool rests 10, 25 retreat and two turret carriages 11, 26 index-swivel and the necessary cutting toll is positioned working position, and then the work is cut and transferred to discharge position.

9. 发明专利

JPS54136367A DIMENSIONS MEASURING METHOD OF WORK CYLINDER SURFACE 失效
公开(公告)号：JPS54136367A
公开(公告)日：1979-10-23
申请号：JP4389678
申请日：1978-04-13
申请人： OKUMA MACHINERY WORKS LTD
发明人： YASUBA SHIYOUICHI , TOUNO YASUMICHI
IPC分类号： B23Q17/20 , G01B5/08 , G01B21/10

10. 发明专利

JPS54128879A COMPENSATION OF TOOL FOR NUMERICAL CONTROL MACHINE TOOLS AND SYSTEM THEREFOR 失效
公开(公告)号：JPS54128879A
公开(公告)日：1979-10-05
申请号：JP3727978
申请日：1978-03-29
申请人： OKUMA MACHINERY WORKS LTD
发明人： YASUBA SHIYOUICHI , TAKESAWA ISAO
IPC分类号： B23Q17/09 , B23B25/06 , B23Q15/00 , B23Q17/22
摘要： PURPOSE:For improving accuracy, to control the position of a tool in accordance with the output of the computation that is made as to the compensation for the wear loss on the basis of the boundary wear loss at the distance corresponding to 1/2 of feed distance per revolution backward of the tip of said tool, of said blade portion. CONSTITUTION:A detector 13 is fixedly provided to detect the wear loss of the blade tip of the tool 10 fitted on a tool rest 9 and a relative operator circuit 19 is furnished to perform operation of the boundary wear loss (B0-B1) at the distance corresponding to 1/2 of feed distance per revolution backward of the tip in the feed direction of said tool 10 on the basis of the output from said detector 13. Further, a tool compensating circuit 22 is provided to perform operation of the compensation of said tool 10 on the basis of the output from said relative operator circuit 19, and a numerical controller 11 to control the position of said tool 10 in accordance with the output of said compensating circuit 22. A value of surface roughness (A1-B1) from said relative operator circuit 19 is compared with the setting thereof by a judging circuit 23, and a machine tool 21 is operated in accordance with the output of said controller 11.

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