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31. 发明专利

JPH07164204A MACHINING DEVICE AND METHOD FOR WORKS TO BE MACHINED IN MULTI-SPINDLE AUTOMATIC LATHE 失效
公开(公告)号：JPH07164204A
公开(公告)日：1995-06-27
申请号：JP34276693
申请日：1993-12-16
申请人： CITIZEN WATCH CO LTD
发明人： SUGIMOTO KENJI
IPC分类号： B23B3/32 , B23B29/24
摘要： PURPOSE:To enhance productivity by machining respective works to be machined on plural work spindles at the same time by means of a single tool rest provided with plural tools. CONSTITUTION:Plural work spindles 5A, 5B are disposed around a single tool rest 2 provided with plural tools T. The respective work spindles are moved by connection and disconnection independently of or interlockingly with the tool rest 2 and is moved independently or interlockingly in a direction of the axial center line of the work spindle, thus machining respective works to be machined on the respective work spindles for simultaneous machining.

32. 发明专利

JPH0647603A MACHINING METHOD BY NC AUTOMATIC LATHE 失效
公开(公告)号：JPH0647603A
公开(公告)日：1994-02-22
申请号：JP13988793
申请日：1993-05-20
申请人： CITIZEN WATCH CO LTD
发明人： MIHARA KUNIYUKI , SUGIMOTO KENJI , FUKUYAMA KUNIO
IPC分类号： B23B1/00 , B23B21/00 , B23B29/24
摘要： PURPOSE:To provide structure of a tool rest minimizing non-cutting time in selecting a cutting tool and for reducing the size of a spindle to be numerically controlled to the minimum, and provide the most suitable machining method in the structure of the tool rest, in a lathe having a plurality of cutting tools. CONSTITUTION:A tool slide has tool holders 22, 23 and 24 for holding a plurality of tools or tool sets prepared by facing each other inward with the center line of a main spindle, sandwiched between them. A machining method comprises processes of selecting an appointed tool out of a plurality of tools by moving a tool slide in X and Y axes directions and positioning the appointed tool in an appointed tool insertion start point determined for every tool or tool set, a process for cutting a work by moving the tool under an appointed cutting condition, and a tool intercharnge process for moving the tool to its appointed retreat position determined for every tool or tool set after the cutting process is finished and moving the tool directly so that it may reach the tool insertion start point for a subsequently selected tool from the retreat position in the shortest time.

33. 发明专利

JPH069762B2 失效
公开(公告)号：JPH069762B2
公开(公告)日：1994-02-09
申请号：JP24932884
申请日：1984-11-26
申请人： CITIZEN WATCH CO LTD
发明人： SUGIMOTO KENJI , MIHARA KUNYUKI
IPC分类号： B23B13/12 , B23B3/06 , B23B19/02 , B23B21/00

34. 发明专利

JPH01150909A MULTI-AXIS MULTI-SYSTEM NUMERICAL CONTROL PROGRAM 失效
公开(公告)号：JPH01150909A
公开(公告)日：1989-06-13
申请号：JP31004487
申请日：1987-12-08
申请人： CITIZEN WATCH CO LTD
发明人： OZAWA TOSHIAKI , SUGIMOTO KENJI , KITAHARA HARUMI , YAMASHITA HIDEICHIRO , NAKAGAWA TAKAHIRO
IPC分类号： G05B19/18
摘要： PURPOSE:To improve an idle time, etc., by constituting plural axes as a system at an arbitrary time point. CONSTITUTION:A program is generated by using a system declaring command which designates the arbitrary plural axes and can constitute the aces as the system to be single controlled system at the arbitrary time point, a queing command to start an action set in a program after the detection of the action in the designated system at the plural system sections constituted by the system declaring command, and a relative command to designate the system which includes a movable axis to carry out a relative action and further to have instruction which corrects a relative action quantity. Thus, a processing can be efficiently carried out, and the program can be carried out without paying any attention to the relative speed or the relative position of two sending axes in the system.

35. 发明专利

JPS63212402A PROCESSING METHOD FOR NUMERICALLY CONTROLLED LATHE 失效
公开(公告)号：JPS63212402A
公开(公告)日：1988-09-05
申请号：JP4233087
申请日：1987-02-25
申请人： CITIZEN WATCH CO LTD
发明人： SUGIMOTO KENJI
IPC分类号： B23B1/00 , B23B3/00 , B23Q15/14
摘要： PURPOSE:To aim at a sharp cut of non-cutting time by, first, establishing an awaiting point for each tool on a plural number of tool bench and second, selecting and ordering the first and the second tools to be used, respectively, in the first and second machine processing based on a program with the second tool awaiting at the established point while the first process is being performed. CONSTITUTION:A T4, which is a cutting off bit, it to be moved back to a point on the circumference of a circle Cb which is slightly larger than the diameter of a raw material (d) from the center of a raw material 1 (hereinafter referred to as the 'awaiting point'). Simultaneously, a first tool T1 to be used next is positioned by approaching toward the awaiting point by means of a rapid traverse and the tool T1 is further advanced to cut the raw material 1. In parallel with the advancing of the tool T1, the tool T4 is moved back using the rapid traverse method to a circumference of a circle Ca which is the extreme backdown position and, simultaneously, a tool T3, which is the second tool, is advanced to that extreme backdown position by the rapid traverse method. The non-cutting time used for tool exchanging can be sharply reduced by constantly selecting the tool to be used by a numerically controlled device to have the tool awaited at the awaiting point.

36. 发明专利

JPS63200942A INTERFERENCE PREVENTIVE METHOD AT THE TIME OF TOOL EXCHANGE FOR NUMERICALLY CONTROLLED LATHE 失效
公开(公告)号：JPS63200942A
公开(公告)日：1988-08-19
申请号：JP3105187
申请日：1987-02-13
申请人： CITIZEN WATCH CO LTD
发明人： SUGIMOTO KENJI , YAMASHITA HIDEICHIRO , KANEKO SHIGETO
IPC分类号： B23Q11/00 , B23Q5/58
摘要： PURPOSE:To prevent any interference between tools themselves at the time of tool exchanging, by making them advance or retreat while maintaining such a relationship that the total amount of distances from the center line of a workpiece in a combination of two pieces of tools to the cutting edge position becomes larger than the specified numerical value. CONSTITUTION:For example, when a cutting tool 26 retreats after completion of cutting, and the next cutting tool 21 is selected and goes forward, distances a1 and a2 between each spindle center line of these cutting tools 26 and 21 and the cutting edge position are added, and advance or retreat of these cutting tools 21 and 26 is carried out while maintaining that this total amount is made so as to become larger than the specified value C. This specified value C is set up with the total amount of distances C1 and C2 from each spindle center of both cutting tools 21 and 26 to the cutting edge position, that is, C=C1+C2 when these cutting tools 21 and 26 are most approached to each other. Thus, these tools are mutually approachable to the limit while preventing any interference between tools themselves, and if these tools are no fear of interference with each other, they are simultaneously machinable, thus noncutting time is shortened and whole working time can be made reducible.

37. 发明专利

JPS6374506A AUTOMATIC LATHE 失效
公开(公告)号：JPS6374506A
公开(公告)日：1988-04-05
申请号：JP22077586
申请日：1986-09-18
申请人： CITIZEN WATCH CO LTD
发明人： SUGIMOTO KENJI
IPC分类号： B23B17/00 , B23B25/00
摘要： PURPOSE:To make a holding volume for machined chips and machining oil larger, cleaning easier and eliminate an effect of heat of the machining oil by cutting a front end of a bed at approximately below a tool post and arranging a device for receiving the machined chips independently of the bed and freely movably. CONSTITUTION:Chips produced by machining with tools 17, 23 and 30 and machining oil supplied to a machined portion are made to pass through a chute portion 1a and to fall into a chip receiving basket 42 in a chip and machining oil receiving box 40 in front of a bed 1 and independent of the bed 1 on a floor. The chips are made to collect in the chip receiving basket 42 while the machining oil is made to be stored in an oil tank arranged at a lower stage of the basket 42. The machining oil collected and filtered with a strainer 43 is drawn up with a pump 46 and supplied in circulation through a pipe 47 to a machined portion of a guide bush 15. With the above constitution, the bed 1 is prevented from being affected by the heat of the machining oil and the machined chips can be cleared without stopping the machine as well as enabling a holding volume for the machined chips and machining oil larger.

38. 发明专利

JPS62297001A AUTOMATIC LATHE 失效
公开(公告)号：JPS62297001A
公开(公告)日：1987-12-24
申请号：JP13937686
申请日：1986-06-17
申请人： CITIZEN WATCH CO LTD
发明人： MIHARA KUNIYUKI , SUGIMOTO KENJI , KASAHARA SHINSUKE , AKIMOTO AKIRA
IPC分类号： B23B3/30 , B23B21/00 , B23Q39/04
摘要： PURPOSE:To reduce the size of a device and to improve the productivity, by a method wherein two main spindles are positioned facing each other, a fluctuation in a relative distance between the tool rest of an automatic lathe, the main spindles of which perform machining independently from each other, and the main spindle is reduced. CONSTITUTION:A workpiece 17 of a first main spindle 2 is primarily machined in a given shape by means of a tool 8 of a first tool rest 7. The workpiece 17, on which primary machining is applied, is moved to a second main spindle 13, and secondary machining is applied thereon by means of a tool 16 of a second tool rest 15. In movement of the workpiece 17 to the second main spindle 13, the tool rest 7 is moved in a direction in which it is separated away from the axis of the main spindle 2 along a guide passage 6, and subsequently, the second main spindle is moved in the direction of an axis along a guide passage 12. This constitution enables the first and second main spindles 2 and 13 to be positioned closer to each other, and enables reduction of the size of a device.

39. 发明专利

JPS62236603A NUMERICALLY CONTROLLED LATHE 失效
公开(公告)号：JPS62236603A
公开(公告)日：1987-10-16
申请号：JP7878386
申请日：1986-04-06
申请人： CITIZEN WATCH CO LTD
发明人： SUGIMOTO KENJI , KASAHARA SHINSUKE , TAGUCHI NORIO , YAMASHITA HIDEICHIRO
IPC分类号： B23B3/16 , B23P23/02 , B23Q27/00
摘要： PURPOSE:To enable arbitrary switching of high speed rotation and a rotation ratio, by a method wherein variable speed motors, situated independently from each other, are mounted to a main spindle and a tool main spindle and the motors are controllable in synchronism with each other. CONSTITUTION:Driving motors 14 and 32 and rotation position detecting devices 17 and 34 are independently mounted to a main spindle 11 and a tool main spindle 26, respectively. Detecting signals from the devices 17 and 34 are inputted to a computing device 42. The computing device 42 computes the number of revolutions so that the speeds and the positions in the rotation directions of the main spindles 11 and 26 are maintained at a preset value. An instruction from the device 42 is inputted to the motors 14 and 32 through speed position control device 40 and 41. Thus, rotation of the main spindles 11 and 26 is electrically synchronously controlled, and high speed rotation and a rotation ratio can be arbitrarily changed.

40. 发明专利

JPS6242722B2 失效
公开(公告)号：JPS6242722B2
公开(公告)日：1987-09-09
申请号：JP2298380
申请日：1980-02-26
申请人： CITIZEN WATCH CO LTD
发明人： ISHIZUKA SHINICHI , SUGIMOTO KENJI
IPC分类号： B23B13/12 , B23B7/02

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