Machine tool and method for producing structure for machine tool
AssigneeDmg Mori Co., Ltd.
InventorsHidenori Saraie, Hiroaki Kawaguchi, Keiichiro Matsuo
Life of this patent
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Abstract
A machine tool includes: a movably configured saddle; and a bed having a sliding surface supplied with a lubricant and allowing the saddle to slide thereon, and receiving the weight of the saddle. The sliding surface has a recess continuously extending in a direction in which the saddle moves. By this configuration, a machine tool which easily holds a lubricant on a sliding surface and a method for producing a structure for the machine tool having the sliding surface are provided.
Claims10
A machine tool comprising:
- a movably configured, first structure;
- and
- a second structure having a recess comprising a sliding surface, the recess being supplied with a lubricant and allowing the first structure to slide thereon, and receiving a weight of the first structure,
- the recess continuously extending in a direction in which the first structure moves, wherein the recess has a depth of 1 μm or more and 10 μm or less, and
- when the second structure is viewed in cross section along a plane orthogonal to a direction in which the first structure moves, the recess has a single arcuate cross section extending continuously between opposite ends of the sliding surface in a widthwise direction orthogonal to the direction in which the first structure moves.
A method for producing a structure having a sliding surface for a machine tool comprising a movably configured, first structure;
- and a second structure having a recess comprising a sliding surface, the recess being supplied with a lubricant and allowing the first structure to slide thereon, and receiving a weight of the first structure, the recess continuously extending in a direction in which the first structure moves, wherein the recess has a depth of 1 μm or more and 10 μm or less, and when the second structure is viewed in cross section along a plane orthogonal to a direction in which the first structure moves, the recess has a single arcuate cross section extending continuously between opposite ends of the sliding surface in a widthwise direction orthogonal to the direction in which the first structure moves, the method comprising:
- preparing a cutting tool for plane surface-machining;
- and
- forming a recess in the second structure surface by moving the cutting tool relative to the second structure surface, the cutting tool and the second structure surface having their postures fixed such that the second structure surface and an axis of rotation of the cutting tool intersect obliquely, and a direction in which the cutting tool moves relative to the second structure surface and the axis of rotation of the cutting tool intersect obliquely,
- wherein the recess has a maximum depth of 1 μm or more and 10 μm or less, and the cutting tool is a milling tool or an end mill.
Dependencies are inferred from the claim text.