Abstract: To perform reinforcement learning that enables selecting action information for shortening a cycle time while also avoiding the occurrence of overheating.

Abstract: A position compensation system of a tool changer includes a storage unit for storing a coordinate indicating a reference position of a turret, a rotary position coordinate detector for detecting the rotary position coordinate of the turret, a compensation necessity determiner for determining whether or not it is necessary to perform a rotational compensation to return the turret to the reference position, in accordance with a rotational deviation of the detected rotary position coordinate from the stored rotary position coordinate, and a compensation request part for requesting an operation or work related to the rotational compensation when it is determined that the rotational compensation needs to be performed.

Abstract: In a sliding door disposed in an opening of a cover surrounding a machine tool, From among two adjacent door panels, at least one of sliding members of the door panel which is located closer to a door frame slides on a door frame guide track, whereas at least one of sliding members of the door panel which is located farther from the door frame slides on the door frame guide track, and at least one of the remaining sliding members slides on the door panel guide track. Thus, guide means can be prevented from projecting vertically.

Abstract: A tool replacement apparatus according to the present invention includes: a turning tool magazine capable of attaching or removing a tool to/from a spindle of a machine tool; a tool replacement control unit which controls operations of turning the tool magazine and attaching or removing a tool to/from a spindle; and a setting unit which sets a rotatable range of the tool magazine. The tool replacement control unit includes: a determining unit which determines whether or not a designated rotation angle in an instruction for turning the tool magazine is within the rotatable range set by the setting unit; and a unit which stops an operation of replacing a tool when the determining unit determines that a designated rotation angle is out of a rotatable range.

Abstract: A machine tool has a saddle moving over a bed and a table moving over the saddle. A scattering prevention cover that receives chips generated and a cutting fluid supplied during machining of a workpiece placed on the table is fixed to the table. A first flow path fixed to the saddle receives the chips and cutting fluid discharged from the scattering prevention cover, and a second flow path fixed to the bed receives and discharges the chips and cutting fluid discharged from the first flow path.

Abstract: In order to make it possible to inspect a deteriorated state of a spindle incorporated in a machine tool without disassembling the machine tool, a command for speed V0 is output to the spindle and, when the rotating speed of the spindle reaches V0, power of a spindle motor is interrupted and a timer is started. The spindle continues to rotate with inertia while decelerating. Time T clocked by the timer when the spindle speed decreases to zero is read. When time T is outside a range between the upper and lower limits, the spindle is in the deteriorated state, and an alarm is output. When time T is not greater than the lower limit, the spindle and a bearing of the spindle are deteriorated and friction resistance increases. When time T is larger than the upper limit, oil holding force of grease of the bearing is deteriorated.

Abstract: A machine tool has a cover comprising a front cover and right and left side covers and includes a first slope part between the front cover and a table on which a workpiece is placed. The first slope part has slopes gradually declining from the center of the front cover toward left and right side covers. Further, the machine tool has also a second slope part that is connected to the left and right lower ends of the first slope part and has slopes declining rearward relative to the machine tool from the side of the front cover. If chips produced by machining are deposited on the surface of the first slope part, they are discharged onto the second slope part and into a contaminated fluid tank by a cutting fluid supplied from a nozzle.

Abstract: A cutting fluid passageway that supplies a cutting fluid is disposed in a machining space (inside of a machine tool) of a machining tool isolated by a cover. The cutting fluid passageway is formed so that the upper portion thereof is opened in the passageway direction. Then, the cutting fluid is supplied from the cutting fluid passageway to a workpiece and a tool during machining or to the inside of the machine tool on which scattered chips produced by the processing are accumulated.

Abstract: In a sliding door disposed in an opening of a cover surrounding a machine tool, From among two adjacent door panels, at least one of sliding members of the door panel which is located closer to a door frame slides on a door frame guide track, whereas at least one of sliding members of the door panel which is located farther from the door frame slides on the door frame guide track, and at least one of the remaining sliding members slides on the door panel guide track. Thus, guide means can be prevented from projecting vertically.

Abstract: A two-stage linked sliding door of a machine tool is provided with a first door half and a second door half movable through different strokes. Pulleys are disposed individually at two opposite end portions of the second door half, and a wire is stretched between the pulleys. The opposite end portions of the wire are secured to the door frame or the first door half by two wire tensioning springs, individually, such that the opposite end portions face each other. These two springs are juxtaposed and offset with each other so that their respective central axes do not line on the same axis.

Abstract: A machine tool has a saddle moving over a bed and a table moving over the saddle. A scattering prevention cover that receives chips generated and a cutting fluid supplied during machining of a workpiece placed on the table is fixed to the table. A first flow path fixed to the saddle receives the chips and cutting fluid discharged from the scattering prevention cover, and a second flow path fixed to the bed receives and discharges the chips and cutting fluid discharged from the first flow path.

Abstract: A machine tool has a cover comprising a front cover and right and left side covers and includes a first slope part between the front cover and a table on which a workpiece is placed. The first slope part has slopes gradually declining from the center of the front cover toward left and right side covers. Further, the machine tool has also a second slope part that is connected to the left and right lower ends of the first slope part and has slopes declining rearward relative to the machine tool from the side of the front cover. If chips produced by machining are deposited on the surface of the first slope part, they are discharged onto the second slope part and into a contaminated fluid tank by a cutting fluid supplied from a nozzle.

Abstract: A cutting fluid passageway that supplies a cutting fluid is disposed in a machining space (inside of a machine tool) of a machining tool isolated by a cover. The cutting fluid passageway is formed so that the upper portion thereof is opened in the passageway direction. Then, the cutting fluid is supplied from the cutting fluid passageway to a workpiece and a tool during machining or to the inside of the machine tool on which scattered chips produced by the processing are accumulated.

Abstract: A shock absorbing damper incorporated into a shock absorbing/door pull-in mechanism includes a piston inside thereof. If the sliding door is moved in a closing direction, one end of a rod connected to the sliding door closes a pressure release hole formed in a central portion of the piston. Then, a resistance to movement of the piston is generated to absorb a shock occurring when the sliding door is closed. On the other hand, if the sliding door is moved in an opening direction, the rod is separated from the piston. As a result, the pressure release hole in the piston is opened and a shock attenuating medium (oil) flows through the pressure release hole and therefore the sliding door moves lightly.

Abstract: A shock absorbing damper incorporated into a shock absorbing/door pull-in mechanism includes a piston inside thereof. If the sliding door is moved in a closing direction, one end of a rod connected to the sliding door closes a pressure release hole formed in a central portion of the piston. Then, a resistance to movement of the piston is generated to absorb a shock occurring when the sliding door is closed. On the other hand, if the sliding door is moved in an opening direction, the rod is separated from the piston. As a result, the pressure release hole in the piston is opened and a shock attenuating medium (oil) flows through the pressure release hole and therefore the sliding door moves lightly.