Abstract:
PROBLEM TO BE SOLVED: To provide an automatic tool exchange device of a machine tool allowing free preferential selection of either shortening in tool replacement time or an increase in the number of stored tools.SOLUTION: An automatic tool exchange device includes a bulkhead 13 to partition a magazine arrangement region A in which a tool magazine 11 is arranged and a machining time movement region B in which a main shaft 6a moves during machining. The bulkhead 13 has an opening 13a formed to communicate the magazine arrangement region A with the machining time movement region B. The tool magazine 11 has a shutter plate 14 detachably mounted to close or open the opening 13a according to turning of the tool magazine 11.
Abstract:
PROBLEM TO BE SOLVED: To provide a machine tool capable of increasing a bearable load in a direction of an axis of a main spindle, while avoiding upsizing and cost increase to heighten rigidity of a load receiving member itself for receiving the load in the direction of the axis of the main spindle, or a member for supporting the load receiving member.SOLUTION: A machine tool 1 includes: a headstock 3 arranged on a bed 2, for rotatably supporting a main spindle 9; a tailstock center 14a which is provided movably between a use position identical to an axis a of the main spindle 9 and a standby position separated from the axis a, and to which a load F in a direction of the axis a, and toward a side of the headstock 3 is applied, when the tailstock center is located on the use position; and a load transmission pin 15 and a load transmission protrusion 16 which are respectively provided at a chuck 10 mounted on the main spindle and at a turret main body 13b for supporting the tailstock center 14a, and which transmit the load from the tailstock center 14a to the headstock 3 via the main spindle 9.
Abstract:
The present invention provides a workpiece changer of a machine tool, including a first workpiece transfer device (16) taking a machined workpiece W1 out of a chuck (12) by applying a pressing force in a direction of an axis A of the chuck (12) to the chuck (12), and supplying an unmachined workpiece W2 to the chuck (12); and a second workpiece transfer device (17) supplying the unmachined workpiece W2 to the first workpiece transfer device (16).
Abstract:
PROBLEM TO BE SOLVED: To provide a machining device, in which a tool rest can be arranged on the upper side of a headstock without increase in the overall height of the device. SOLUTION: The machining device 1 includes a lathe 10 and a transfer device 50 which carries a work W to the lathe 10. The lathe 10 includes: a main spindle 15 disposed with its axis being horizontal; a chuck 16 provided on a distal end of the main spindle 15 to hold the work W; the headstock 17 supporting the main spindle 15; the tool rest 13 disposed on the upper side of the main spindle 15, to which a tool T is installed; and support structures 11 and 12 for supporting the headstock 17 and the tool rest 13. The transfer device 50 includes a moving body 53 provided under the main spindle 12 to be movable in a direction orthogonal to the axial line of the main spindle 12 within a horizontal plane; support members 51 and 52 movably supporting the moving body 53; holding mechanisms 61 and 62 for holding the work W; a raising/lowering mechanism 63 provided on the moving body 53 to support and move up and down the holding mechanisms 61 and 62; and a horizontally driving mechanism for moving the moving body 53. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
There is provided a holder main body which has a simple structure, allows automatic tool change, and has high suction efficiency of cutting chips to be capable of preventing internal deposition. There is provided a holder man body having a mounting hole in which a cutting tool is attachable and attached to a spindle of a machine tool, the holder main body including: a second suction hole which penetrates through the holder main body in an axial direction so as to be connected with a first suction hole penetrating in the axial direction through the cutting tool attached in the mounting hole; and a third suction hole connected with the second suction hole and capable of sucking air other than suction air coming from the first suction hole.
Abstract:
PROBLEM TO BE SOLVED: To provide a position detector which secures functional safety and which achieves the simplification of circuit structure for performing malfunction detection.SOLUTION: A second position signal POS2 setting a second wavelength λ2 coarser than a first position signal POS1 in a minimum resolution unit λ1/N, which is generated by a first signal processor 31A, as a resolution unit and a third position signal POS3 setting the first wavelength λ1 as the resolution unit are compared by a first comparison processor 321A, so that malfunction detection is performed.
Abstract:
A chip discharge device for a machine tool is provided that has a simple structure, enables automatic replacement of tools, and is suitable for a machine tool in which a spindle head is turned about an axis of turning that is not parallel to the center axis of the spindle. A suction pipe 73 on the first support member side is disposed in parallel to a first axis of turning 191 to be centered on the axis of the through hole 192 of a first support member. A right end of the suction pipe 73 on the first support member side is fixed by bolts to a left end surface of the spindle head 18. An outer circumferential surface of the left end of the suction pipe 73 on the first support member side is connected to be able to relatively rotate to an inner circumferential surface at the lower end of a second communicating pipe 74. A seal mechanism 8 is provided in the connection portion, preventing the external air from being sucked into the second communicating pipe 74.
Abstract:
PROBLEM TO BE SOLVED: To provide a tool rearranging method which facilitates rearrangement of tools only by designating a T command value of a tool group and an address command value of a main magazine, and implements exchange of a tool in the tool group for a spare tool when the life of the tool expires. SOLUTION: According to the tool rearranging method, during execution of a machining step, the T command value of the tool group to be arranged in the main magazine and the address command value of the main magazine are designated for each tool group. The tool of the designated tool group corresponding to the T command value, which is called up from a sub-magazine during the machining step, for use in machining of a workpiece, is rearranged so as to be stored in a new address of the main magazine designated by the address command value. When the life of the tool expires, the spare tool in the tool group is rearranged so as to be stored in the new address of the main magazine, and thereafter the expired tool is exchanged for the spare tool by an ATC. COPYRIGHT: (C)2010,JPO&INPIT