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| Number | Title | Issue Date |
| 5094551 | Preload control apparatus for bearings with shape memory alloy springs A preload control apparatus for use in a spindle (12) of a machine tool comprises a bearing (16,17) and a plurality of springs (26a to 26d) for exerting a preload on the bearing (16, 17). Some or all of the springs (26a to 26d) are at least partly made of... | 03/10/1992 |
| 5062190 | Pallet changer This invention relates to a pallet changer suitable for use with a machine tool. When exchanging pallets, the pallet changer employs a drive means 3 for driving a table 2, and a transfer means 12 comprising a chain 66 and sprockets 64, 65. The transfer me... | 11/05/1991 |
| 5058261 | Machine tool This invention relates to a machine tool which can do multiple operations such as drilling and turning operations on a workpiece once the workpiece is attached onto the workhead, thereby obtaining time savings in loading the workpiece and maintaining qual... | 10/22/1991 |
| 5044486 | Pallet magazine A pallet magazine for setting a plurality of pallets including a column and a plurality of swing units mounted on the column. A turntable as driven about a horizontal axis and including a plurality of rails for receiving the pallet. An indexing member sec... | 09/03/1991 |
| 5020201 | Machine tool This invention relates to a machine tool having a table for mounting a workpiece. The body of a machine tool is equipped with a table for mounting a workpiece. The table is further equipped with a rotary table. When performing turning operations of the wo... | 06/04/1991 |
| 5009555 | Tool holder for machine tool A machine tool has a machine tool body (3), a spindle (1) having a supporting portion (2) and being rotatably supported by the machine tool body (3), and a tool holder (5) having an inserting portion (6) attached to the supporting portion (2). A coating l... | 04/23/1991 |
| 4996754 | Pallet changer This invention relates to a pallet changer suitable for use with a machine tool. When exchanging pallets, the pallet changer employs a drive means 3 for driving a table 2, and a transfer means 12 comprising a chain 66 and sprockets 64, 65. The transfer me... | 03/05/1991 |
| 4995502 | Pallet changer A pallet changer includes a support, a table movable on the support along one direction, a plurality of pallets for holding a workpiece, a drive mechanism for moving the table, a transfer device for moving the pallet along the one direction relative to th... | 02/26/1991 |
| 4991706 | Machine tool A machine tool has a machine tool body, a spindle attached to the machine tool body for holding a tool, a bed provided on the machine tool body, and a table located on the bed for supporting a workpiece at a desired position and orientation so that the wo... | 02/12/1991 |
| 4985971 | Pallet changer A pallet changer for a machine tool comprising: (a) a work station comprising a plurality of members which form holes for a plurality of pallets each having a workpiece, the members being arranged at predetermined intervals in an endless chain manner such that... | 01/22/1991 |
| 4976019 | Machining center This invention relates to a machining center including a machine tool and a three-dimensional measuring machine. The machining center machines a workpiece and then measures the shape of the machined workpiece. The measuring machine includes a probe unit f... | 12/11/1990 |
| 4972597 | Three-dimensional displacement gage A three-dimensional displacement gauge comprising a housing, a probe rotatably and slidably mounted on the housing, the probe is slidable along a first direction and having a contact member attached at one end thereof, two emitting members mounted on the ... | 11/27/1990 |
| 4955770 | Bed for a machine tool A bed for machine tools which includes at least one hole of a structure such that chips or cutting oil fallen on the bed from a working stage is caused to fall into the hole. The bed is formed with an inclined surface of such inclination that chips or cut... | 09/11/1990 |
| 4914803 | Machine tool A machine tool comprising a spindle head, a tool magazine, and an arm, the arm being secured to the spindle head, the arm having gripping members for holding a tool holder. When a workpiece is machined, the arm in which gripping members are opened is plac... | 04/10/1990 |
| 4890716 | Machine tool A machine tool has a machine tool body, a spindle attached to the machine tool body for holding a tool, a bed provided on the machine tool body, and a table located on the bed for supporting a workpiece at a desired position and orientation so that the wo... | 01/02/1990 |
| 4809422 | Machine tool with index means A machine tool body (1) is equipped with a spindle (9) which can move vertically along the Y axis. A first table (14) on a bed (10) of the machine tool body (1) is movable horizonally in the Z direction and can move toward the tool (11) held by the spindl... | 03/07/1989 |
| 4797205 | Apparatus for separating oily cutting liquid An apparatus for separating an oily cutting liquid from a water-soluble cutting liquid, includes a main tank (10) for containing combined liquids (11) including in combination the oily cutting liquid and the water-soluble cutting liquid which constitute t... | 01/10/1989 |
| 4733999 | Cutting oil sorting apparatus In a machine tool including a spindle head (1), a XY-table (2) placed under the spindle head (1) and a base (A), and a cutting liquid sorting apparatus, the cutting liquid sorting apparatus includes a receiver (19), with an opening (21) at its bottom, for... | 03/29/1988 |
| 4713887 | XY table An XY table for processing an object (22) such as an iron plate, comprising frame (2) having an opening formed thereby, a moving member (2) moving in an X-direction and in a Y-direction at a right angle to the X-direction, a head (21) for cutting, marking... | 12/22/1987 |
| 4696091 | Automatic tool changer During the automatic changing of tools between a spindle of a machine tool and a tool magazine, a changing operation of causing one of a pair of tool changing arms to stand by in the vicinity of the spindle to remove the used tool and another changing ope... | 09/29/1987 |
| 4607989 | Machine tool A machine tool has a machine tool body (3), a spindle (1) having a supporting portion (2) and being rotatably supported by the machine tool body (3), and a tool holder (5) having an inserting portion (6) which is attached to the supporting portion (2). A ... | 08/26/1986 |
| 4567659 | Tool size measuring apparatus for NC machine tools Each of the tools accommodated in a tool magazine of a NC machine tool is transferred to a reference receptacle arranged near to the tool magazine and the length and outer diameter of the tool are measured thereby inputting the measured values into the ma... | 02/04/1986 |
| 4546532 | Automatic tool changing apparatus To effect the automatic changing of tools rapidly and provide a large number of tool pots with a small space in an automatically controlled machine tool, an automatic tool changing apparatus is positioned between the magazine proper and the spindle axis a... | 10/15/1985 |
| 4442576 | Tool cooling device for machine tools The present invention relates to a tool cooling device for machine tools in which a plurality of cooling fluid distributing units are provided on a fixed shaft having a hole formed therethrough and communicating with a source of cooling fluid and each of ... | 04/17/1984 |
| 4413422 | Apparatus for detecting the position of a machine tool spindle An apparatus for detecting the position of a machine tool spindle is intended to detect the position of the thermally displaced spindle in the x and y directions, respectively, by a single proximity switch to prevent the accuracy of machining from being d... | 11/08/1983 |
| 4412162 | Protective system for automatic tool changing apparatus There is disclosed a protective system for preventing damages to a tool and a work or tool changing mechanism component parts due to any interference between the tool and the work during the tool changing operation by an automatic tool changing apparatus ... | 10/25/1983 |
