Provided is a machine tool system that can supply an appropriate amount of lubricating oil to a machine tool according to the operation thereof. The machine tool system comprises: a lubricating oil supply unit that supplies a lubricating oil to a feed shaft of a machine tool; a code analysis unit that analyzes a machining program and determines whether a specific reciprocating operation is to be carried out at the feed shaft; and a control unit which, if it has been determined that the specific reciprocating operation is to be carried out, changes the supply of the lubricating oil via the lubricating oil supply unit to an exclusive pattern when the machine tool carries out the specific reciprocating operation.

Provided is a sliding guide device for a machine tool, which is capable of supplying an appropriate amount of lubricating oil onto a sliding surface in a stable manner for a long period of time. A movable body is provided with a porous-body accommodation space that is open toward a guide face of a base. The porous-body accommodation space is in communication with a lubricating-oil supply passage that is in communication with an external lubricating oil supply unit. In the porous-body accommodation space, a porous body is disposed in a manner to provide a gap G between the porous body and the guide face of the base.

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.

A guide device includes a support that includes a guide surface, and a movable body that includes an oil pocket to which lubricant is supplied and a sliding surface facing the guide surface. The sliding surface includes a first region that is arranged around the oil pocket and formed of a first material, and a second region that is arranged at least partially around the first region and formed of a second material.

In a moving body guiding device which supplies lubricating oil between a guiding surface of a supporting body and a sliding surface of the moving body and guides a moving body, a lubricating oil pocket having a periphery enclosed by a land portion is provided on the sliding surface of the moving body, a closed loop oil groove is formed along the inside of the land portion, a front portion and a rear portion inside the lubricating oil pocket communicate with one another by means of a lubricating oil pocket return passage at least partially opening in the oil groove, and lubricating oil that has accumulated in the rear portion, in a movement direction, concomitant with movement of the moving body, flows to the front portion in the movement direction.

A method for determining lubricant consumption by a transmission mechanism disposed on a machine tool includes steps of: a) estimating, based on an operational speed and a predetermined first predictive model, a total operational physical quantity; b) estimating, based on an individual operational physical quantity and the total operational physical quantity, a total operational count; c) receiving actuation information from the machine tool, and calculating a partial operational count based on the actuation information; and d) calculating, based on the partial operational count and the total operational count, a ratio between an amount of lubricant consumption within a time period and a total amount of lubricant.

The invention provides a machine tool capable of expanding the slidable range of the moving unit without making the oil feeding system complicated. A machine tool in which a moving unit slides against a supporting unit with a sliding surface of the supporting unit facing a sliding surface of the moving unit, comprises a first oil groove formed on an unexposed portion of the sliding surface of the supporting unit; a second oil groove formed on an unexposed portion of the sliding surface of the moving unit; and an oil inlet formed on one of the first oil groove and the second oil groove. Lubricant fed through the oil inlet is supplied to the other of the first oil groove and the second oil groove.

In a moving body guiding device which supplies lubricating oil between a guiding surface of a supporting body and a sliding surface of the moving body and guides a moving body, a lubricating oil pocket having a periphery enclosed by a land portion is provided on the sliding surface of the moving body, a closed loop oil groove is formed along the inside of the land portion, a front portion and a rear portion inside the lubricating oil pocket communicate with one another by means of a lubricating oil pocket return passage at least partially opening in the oil groove, and lubricating oil that has accumulated in the rear portion, in a movement direction, concomitant with movement of the moving body, flows to the front portion in the movement direction.

A machine includes a linear drive mechanism, a motor configured to drive the linear drive mechanism, a lubrication agent supply pipe through which a lubrication agent is supplied to the linear drive mechanism, a lubrication agent supply device having a pump and configured to supply the lubrication agent to the linear drive mechanism via the lubrication agent supply pipe, and a controller configured to control the linear drive mechanism, wherein the controller changes a supply interval with which the lubrication agent supply device supplies the lubrication agent to the linear drive mechanism, based on one of a load applied on the linear drive mechanism and an amount of a cutting fluid used by the machine.

A lubricant supply member of a linear guide includes a first recessed part formed above a guide rail, a pair of second recessed parts formed at both left and right side-surface positions of the guide rail, and protrusions slidable on rail side raceway surfaces of the guide rail. A lubricating unit includes a first cylindrical part, arranged in the first recessed part, to allow the first recessed part to move in a vertical direction of the slider, and to press the first recessed part to a widthwise outside of the slider, and a pair of second cylindrical parts, arranged in the pair of second recessed parts, to allow the pair of second recessed parts to move in a width direction of the slider, and to press the pair of second recessed parts in the vertical direction of the slider, respectively.