Patents Assigned to Yamazaki Mazak Kabushiki Kaisha
  • Patent number: 6612004
    Abstract: In a complex machining machine tool, a tool rest capable of attachably and detachably installing tool installing inserts thereon is provided, a plural number of virtual tools is set and registered concerning a predetermined at least one tool together with its indexing positional data in tool file, the tool data of the corresponding virtual tool is read out from the tool file on the basis of the machining instruction by the virtual tool stored in machining program, and the corresponding virtual tool is indexed on the tool rest on the basis of the indexing positional data, and then machining with the virtual tool is executed. At the time of machining, it is possible to continue machining with the same tool by only positional indexing without changing the tool. The work for changing tools can be extremely decreased even if machining contents are changed or it is necessary to change tools by tool exhaustion.
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: September 2, 2003
    Assignee: Yamazaki Mazak Kabushiki Kaisha
    Inventors: Tsunehiko Yamazaki, Naoe Fukumura, Masayoshi Mizukado, Kazuhiro Kikata, Sadami Miyazaki, Koichi Maki
  • Patent number: 6578453
    Abstract: An inside diameter machining method for machining inside a workpiece uses a turning tool utilized within a main body in the shape of a bar with a hook-shaped top end portion which has a cutting portion. When the machining diameter of the portion to be machined inside the workpiece is bigger than the workpiece's tool insertion hole, the workpiece interferes with the tool when the turning tool's top end portion is moved linearly. To overcome the interference, moving the turning tool's top end portion in two axial directions orthogonal to each other and in a rotational direction with a third axial direction orthogonal to the other two axial directions as its center permits the top end portion to be inserted into the tool insertion hole. The turning tool's cutting portion is then positioned at the portion to be machined inside the workpiece. Turning machining subsequently can be commenced.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: June 17, 2003
    Assignee: Yamazaki Mazak Kabushiki Kaisha
    Inventors: Sakae Hatano, Yasuyuki Hara
  • Patent number: 6570123
    Abstract: When a jig to be used at the time of cutting and machining a workpiece W with a laser beam machine 1 is produced, a shape of a workpiece supporting portion 23a for supporting the workpiece by abutting on the workpiece at the time of supporting the workpiece is produced from drawing data CD showing the three dimensional shape of the workpiece.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: May 27, 2003
    Assignee: Yamazaki Mazak Kabushiki Kaisha
    Inventors: Yoshihiko Sakai, Masafumi Ueno, Yoshihisa Yamaoka, Naoomi Miyagawa
  • Patent number: 6565497
    Abstract: In a complex machining machine tool, a tool rest capable of attachably and detachably installing tool installing inserts thereon is provided, a plural number of virtual tools is set and registered concerning a predetermined at least one tool together with its indexing positional data in tool file, the tool data of the corresponding virtual tool is read out from the tool file on the basis of the machining instruction by the virtual tool stored in machining program, and the corresponding virtual tool is indexed on the tool rest on the basis of the indexing positional data, and then machining with the virtual tool is executed. At the time of machining, it is possible to continue machining with the same tool by only positional indexing without changing the tool. The work for changing tools can be extremely decreased even if machining contents are changed or it is necessary to change tools by tool exhaustion.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: May 20, 2003
    Assignee: Yamazaki Mazak Kabushiki Kaisha
    Inventors: Tsunehiko Yamazaki, Naoe Fukumura, Masayoshi Mizukado, Kazuhiro Kikata, Sadami Miyazaki, Koichi Maki
  • Patent number: 6536317
    Abstract: A complex machining machine tool is capable of executing a plurality of kinds of machining operations on a workpiece by selectively indexing and using an insert installed on a complex tool. The complex tool is registered in a tool data file as a plurality of virtual tools capable of executing corresponding machining operations. The virtual tools include a turning tool and a milling tool. In the tool data, the angle in a B-axis direction at which the tool is positioned when the virtual tool is used is stored as a B-axis angle for each virtual tool. The tool data of the corresponding virtual tool is read out from the tool file on the basis of the programmed machining instructions, and the B-axis angle is set on the basis of the tool data so as to execute machining.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: March 25, 2003
    Assignee: Yamazaki Mazak Kabushiki Kaisha
    Inventors: Tsunehiko Yamazaki, Naoe Fukumura, Masayoshi Mizukado, Kazuhiro Kikata, Sadami Miyazaki, Koichi Maki
  • Patent number: 6532849
    Abstract: A complex tool has a main body and a turning tool provided at an outer periphery portion of the main body. The turning tool is capable of machining on a rotating workpiece without rotating itself. An insert installed on the turning tool has a top end which contacts a workpiece by projecting a predetermined amount outside the main body's outer peripheral face. It also projects a predetermined amount from a top end portion of the main body in a direction of an axial center of the tool. The complex tool also has a rotating tool for machining by rotating itself. The rotating tool accomplishes machining corresponding to an axial center of the main body.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: March 18, 2003
    Assignee: Yamazaki Mazak Kabushiki Kaisha
    Inventors: Tsunehiko Yamazaki, Naoe Fukumura, Masayoshi Mizukado, Kazuhiro Kikata, Sadami Miyazaki, Koichi Maki
  • Patent number: 6522941
    Abstract: The chuck 10, for positioning and holding a pipe at any rotational angle position around the axial center, is provided with the three dimensional linear processing machine. When the machining program PRO is composed, a plurality of the shape patterns KPT classified machining modes concerning pipes by machining shape is displayed on the display 23. Furthermore, dimensional data item concerning selected shape pattern is displayed on the display 23. Then, the machining program PRO is composed on the basis of the input code parameter CP and the selected shape pattern KPT. Besides, shift quantity TMz and TMy are measured when the pipe to be machined is installed on the chuck 10, and on the basis of this, the machining program PRO is amended and executed.
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: February 18, 2003
    Assignee: Yamazaki Mazak Kabushiki Kaisha
    Inventors: Minoru Tashiro, Ryoichi Furuhashi, Hitoshi Kumazaki, Hikaru Iryoda
  • Patent number: 6502487
    Abstract: A method of machining a workpiece uses a complex tool having a number of inserts. The tool is installed on a tool holder of a machine tool and used for a turning machining operation on a workpiece, including rotating the workpiece, and selectively using one or more of the inserts on the complex tool, with the complex tool being fixed and held. A milling machining operation is performed on a workpiece using one or more of the inserts, with the complex tool being rotated and driven. Both turning machining and milling machining operations can be performed without changing tools. Extremely efficient machining is possible.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: January 7, 2003
    Assignee: Yamazaki Mazak Kabushiki Kaisha
    Inventors: Tsunehiko Yamazaki, Naoe Fukumura, Masayoshi Mizukado, Kazuhiro Kikata, Sadami Miyazaki, Koichi Maki
  • Patent number: 6483075
    Abstract: A first and a second long-length member holding means 13, 39 are provided, and the second long-length member holding means 39 is provided on the side of a machining head portion 32 rather than the first long-length member holding means 13. A through hole 14c, capable of penetrate a long-length member 53, is formed on the second long-length member holding means 39. The first and second long-length member holding means are provided so as to be relatively close to and relatively apart from each other in a first direction. By moving and approaching the long-length member 53 in the second long-length member holding means 39 direction, while being held with the first long-length member holding means 13, the long-length member 53 is projected optional quantity on the machining head portion 32 side from the second long-length member holding means 39. Then, three-dimensional linear machining is performed on the long-length member 53 by the machining head 36.
    Type: Grant
    Filed: July 11, 2000
    Date of Patent: November 19, 2002
    Assignee: Yamazaki Mazak Kabushiki Kaisha
    Inventors: Tsunehiko Yamazaki, Naoomi Miyakawa
  • Patent number: 6457391
    Abstract: In a lathe 1, an angular position &bgr; x for respectively positioning a single tool in the plural numbers of directions of the tool edge is computed according to designated shape information IFa, and the tool 25 held by the tool holding body 22 can be positioned in the plural number of directions of the tool edge in order by indexingly positioning the tool holding body 22 in the B-axis direction on the basis of the computed angular position &bgr; x at the time of machining. A plurality of machining modes can be machined with a single tool.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: October 1, 2002
    Assignee: Yamazaki Mazak Kabushiki Kaisha
    Inventors: Tsunehiko Yamazaki, Naoe Fukumura, Masayoshi Mizukado, Kazuhiro Kikata, Sadami Miyazaki, Koichi Maki
  • Patent number: 6453782
    Abstract: A machine tool capable of performing screw-machining on a rotating workpiece has a tool rest which can attachably and detachably equip a turning tool with an insert on its tip and is provided so as to be freely driven to move in first and second axial directions orthogonal to each other. The tool rest is also being provided so as to freely rotate about a third axis orthogonal to the first and second axial directions so as to be positioned at a selected tool-rest angle with respect to the workpiece. The machine tool includes suitable features to allow inputting of machining information, computing of a cutting pattern, and execution of screw-machining.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: September 24, 2002
    Assignee: Yamazaki Mazak Kabushiki Kaisha
    Inventors: Tsunehiko Yamazaki, Naoe Fukumura, Masayoshi Mizukado, Kazuhiro Kikata, Sadami Miyazaki, Koichi Maki
  • Patent number: 6446532
    Abstract: The turning machining tool has a main body 2 forming tool holding portion 3. An insert holding portion 12 is provided to the main body so as to being rotatably in a predetermined plane. A insert 13 is detachably attached to the insert holding portion 12. A rotation drive means 5,6,9,10,11,17,19 for the insert holding portion 12 is provided to the main body. It is possible to freely and rotatably drive the insert holding portion 12 in the predetermined plane. Therefore, it is possible that the insert 13 takes various machining positions for main body 2. So, various machining such as the bag hole machining becomes possible.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: September 10, 2002
    Assignee: Yamazaki Mazak Kabushiki Kaisha
    Inventors: Tsunehiko Yamazaki, Naoe Fukumura, Masayoshi Mizukado, Kazuhiro Kikata, Sadami Miyazaki, Koichi Maki
  • Patent number: 6438437
    Abstract: A parts classification unit 15 displays parts 70 and a palletizing robot 20 so as to compute the absorbing position of the palletizing robot 20 with respect to the parts 70 displayed as part.robot information BRJ by the instruction of an operator. The moving.positioning instruction FRn of the robot 20 between the classification head 5 and the pallet 10 is composed on the basis of the parts.robot information BRJ, sheet nesting information SNJ showing location state of the parts in the classification head and pallet nesting information PNJ showing location state of the parts on the pallet 10. By this structure, the time of machining and classification is made shortened without teaching.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: August 20, 2002
    Assignee: Yamazaki Mazak Kabushiki Kaisha
    Inventors: Yoshihisa Yamaoka, Katsumi Suzumura
  • Patent number: 6192288
    Abstract: The program memory 23 for storing the machining program MPR1 which instructs to carry the raw material workpiece 29 with the workpiece carrying robot 7 and to machine with the laser beam machine 3, and the classification program TPR1 which instructs to classify and carry the machined raw material workpiece to each classification rack 10, corresponding to each raw material workpiece, is provided. On the basis of the machining instruction from the input portion 17, the machining program MPR1 and the classification program TPR1 corresponding to the raw material workpiece, on which machining is instructed, are read out of the program memory 23. The machining portions 2, 3, 5 are instructed to machine on the basis of the read machining program, and the classification portions 9, 13, 15 are instructed to classify on the basis of the read classification program TPR1.
    Type: Grant
    Filed: September 10, 1998
    Date of Patent: February 20, 2001
    Assignee: Yamazaki Mazak Kabushiki Kaisha
    Inventor: Yoshihisa Yamaoka
  • Patent number: 6124565
    Abstract: A laser cutting machine includes a driving apparatus for moving a laser head axially. An inner sleeve having a converging lens is coupled to the laser head. An outer sleeve having a nozzle is supported to move relative to the inner sleeve. A braking mechanism is arranged between the inner and outer sleeves to selectively lock the outer sleeve to the inner sleeve. An actuator moves a catch to selectively engage the outer sleeve, which holds the outer sleeve at a predetermined position. The driving apparatus moves the laser head when the outer sleeve is held at the predetermined position and the outer sleeve is released from the inner sleeve by the braking mechanism. This moves the outer sleeve relative to the inner sleeve and automatically adjusts the distance between the converging lens and the nozzle. This permits automation of a focal point position adjustment method.
    Type: Grant
    Filed: April 12, 1999
    Date of Patent: September 26, 2000
    Assignee: Yamazaki Mazak Kabushiki Kaisha
    Inventors: Akio Morishita, Minoru Tashiro, Tetsuichi Kitamoto
  • Patent number: 5254068
    Abstract: Each tool, each chuck jaw, and each hand are provided with a characteristic data storing element. Characteristic data concerning tools, chuck jaws and hands are stored in each characteristic data element. The characteristic data concerning each tool, each chuck jaw and each hand are read out of the characteristic data storing element. Tools to be installed on a tool rest and chuck jaws to be installed on a spindle chuck are discriminated according to kinds of machinings. A predetermined hand is selected from a stocker on the basis of the read out characteristic data so as to install on a carrier robot. A workpiece is picked out of a pallet so as to carry to a spindle chuck by a carrier robot. A predetermined tool is selected from the stocker on the basis of the read out characteristic data so as to carry to the tool rest by a carrier robot. A predetermined chuck jaw is selected from the stocker on the basis of the read out characteristic data so as to carry to the spindle chuck by a carrier robot.
    Type: Grant
    Filed: August 16, 1991
    Date of Patent: October 19, 1993
    Assignee: Yamazaki Mazak Kabushiki Kaisha
    Inventors: Kazuo Yamada, Sumiaki Inami, Shigemitsu Ito, Tomio Tajima
  • Patent number: 5192848
    Abstract: Various kinds of raw workpieces are stocked in a stocker. A predetermined kind of the workpiece is selected from the stocker with a lifter so as to move to a loading station. The workpiece is held with a vacuum pad of a loader of a workpiece carrying unit. The workpiece carrying unit is moved to a position adajacent to a laser processing machine so as to make the workpiece carrying unit stood by at the position. When machining finishes in the laser processing machine, a supporting unit like a comb of an unloader of the workpiece carrying unit is inserted below the machined workpiece, put on the table of the laser processing machine. The supporting unit is lifted up so as to pick the workpiece up out of the table. The raw workpiece is immediately put on the table with the loader. The workpiece carrying unit is moved to the unloading station. The machined workpiece is put on rollers of the unloading station with the unloader. The rollers are moved so as to drop the machined workpiece on the pallet.
    Type: Grant
    Filed: October 31, 1991
    Date of Patent: March 9, 1993
    Assignee: Yamazaki Mazak Kabushiki Kaisha
    Inventors: Naoomi Miyakawa, Kazuyuki Toda, Yukiyasu Nakamura, Minoru Tashiro, Yoshihisa Yamaoka, Isao Kuwayama
  • Patent number: 5168745
    Abstract: A press brake has upper dies and lower dies so as to be capable of attaching and detaching with an upper die exchange apparatus and a lower die exchange apparatus to a machine body of the press brake. And, the upper die and the lower die comprise the combination of divisional die chips. The storing of dies is performed with those die chips. And, the face width of the upper die chips is determined and combined according to size of a workpiece to be processed from the upper die chips.
    Type: Grant
    Filed: March 14, 1991
    Date of Patent: December 8, 1992
    Assignee: Yamazaki Mazak Kabushiki Kaisha
    Inventors: Naoomi Miyagawa, Chiyoaki Yoshida, Kazuyuki Toda, Yukiyasu Nakamura
  • Patent number: 5134873
    Abstract: A press brake has upper dies and lower dies so as to be capable of attaching and detaching with an upper die exchange apparatus and a lower die exchange apparatus to a machine body of the press brake. And, the upper die and the lower die comprise the combination of divisional die chips. The storing of dies is performed with those die chips. And, the face width of the upper die chips is determined and combined according to size of a workpiece to be processed from the upper die chips.
    Type: Grant
    Filed: April 10, 1990
    Date of Patent: August 4, 1992
    Assignee: Yamazaki Mazak Kabushiki Kaisha
    Inventors: Naoomi Miyagawa, Chiyoaki Yoshida, Kazuyuki Toda, Yukiyasu Nakamura
  • Patent number: D368917
    Type: Grant
    Filed: March 9, 1995
    Date of Patent: April 16, 1996
    Assignee: Yamazaki Mazak Kabushiki Kaisha
    Inventors: Tamaki Isshiki, Atsushi Hasegawa, Fukio Naganuma