Combined machining method and combined machining device
First Claim
1. A combined machining method of forming a hole in an original sheet by thermal cutting and machining, and taking out a cut member including the hole from the original sheet, the method including:
- a hole-cutting process for forming a hole in the original sheet by means of thermal cutting while leaving a machining allowance relative to a finished size;
a finishing process for using a cutting tool to cut a thermally-cut end surface of the hole by guiding the cutting tool along an inner peripheral surface of the hole, and to machine the hole to the finished size;
an outer periphery-cutting process for cutting an outer periphery of the cut member by means of thermal cutting and taking out the cut member from the original sheet, the outer periphery-cutting process being executed after the finishing process; and
a confirmation process for confirming whether or not thermally-cut end material remains inside the hole after the hole-cutting process by advancing the cutting tool toward the hole and detecting a position of the cutting tool, the confirmation processing being executed between the hole-cutting process and the finishing process.
1 Assignment
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Accused Products
Abstract
A method of cutting a cut member out of an original sheet by means of thermal cutting and machining, and includes a hole-cutting process, a finishing process, and an outer periphery-cutting process. During the hole-cutting process, a hole is created in the original sheet by means of thermal cutting while leaving a machining allowance in addition to the finished size of the hole. During the finishing process, a cutting tool is inserted into the hole which has been created through the hole-cutting process, and the cutting tool is guided along the inner circumference of the hole so as to cut the thermally-cut end surface in order to machine the hole to the finished size. During the outer periphery-cutting process, the outer periphery of the cut member is cut by means of thermal cutting to take the cut member out of the original sheet.
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Citations
14 Claims
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1. A combined machining method of forming a hole in an original sheet by thermal cutting and machining, and taking out a cut member including the hole from the original sheet, the method including:
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a hole-cutting process for forming a hole in the original sheet by means of thermal cutting while leaving a machining allowance relative to a finished size; a finishing process for using a cutting tool to cut a thermally-cut end surface of the hole by guiding the cutting tool along an inner peripheral surface of the hole, and to machine the hole to the finished size; an outer periphery-cutting process for cutting an outer periphery of the cut member by means of thermal cutting and taking out the cut member from the original sheet, the outer periphery-cutting process being executed after the finishing process; and a confirmation process for confirming whether or not thermally-cut end material remains inside the hole after the hole-cutting process by advancing the cutting tool toward the hole and detecting a position of the cutting tool, the confirmation processing being executed between the hole-cutting process and the finishing process. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A combined machining device for forming a hole in an original sheet by thermal cutting and machining, and taking out a cut member including the hole from the original sheet, the device comprising:
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a loading table on which an original sheet is loaded; a first head for performing thermal cutting on the original sheet loaded on the loading table; a second head for performing machining on the original sheet loaded on the loading table, the second head having a cutting tool; a movement mechanism for moving the first and second heads in the horizontal direction and in the vertical direction relative to the loading table; a height position detection sensor for detecting a position in the vertical direction of the original sheet loaded on the loading table; and a control unit for controlling relative movement of the first and second heads relative to the loading table, and for controlling thermal cutting and machining performed by the first and second heads; wherein, the control unit has a hole-cutting functional unit for controlling the first head to form a hole in the original sheet by means of thermal cutting while leaving a machining allowance relative to the finished size of the hole; a finishing functional unit for controlling the cutting tool of the second head to cut a thermally-cut end surface of the hole by guiding the cutting tool along an inner peripheral surface of the hole, and to machine the hole to the finished size; an outer periphery-cutting functional unit for cutting an outer periphery of the cut member by thermal cutting and taking out the cut member from the original sheet, the outer periphery-cutting functional unit being programmed to execute cutting of the outer periphery after the finishing functional unit has completed machining the hole to the finished size; and a confirmation functional unit for confirming whether or not thermally-cut end material is remaining inside the hole by advancing the cutting tool toward the hole and detecting a position of the cutting tool, the confirmation functional unit being programed to execute the confirmation after the hole-cutting functional unit has formed the hole and before the finishing functional unit machines the hole to the finished size. - View Dependent Claims (11, 12, 13, 14)
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Specification