Abstract: Provided is a wiring error detection device capable of detecting errors in the wiring to a motor controlled by a plurality of amplifiers.

Abstract: A control apparatus of a machine tool includes: a slide position control unit configured to control a slide according to operation patterns; a pressure command generation unit configured to generate a pressure command for a die cushion according to the operation patterns; a pressure detection unit configured to detect an actual pressure of the die cushion; a die cushion speed control unit configured to control the die cushion, based on an error between the pressure command and the actual pressure; and a command reach determination unit configured to determine whether or not the error is greater than a pressure threshold, wherein the slide position control unit sets, based on a result of the determination by the command reach determination unit, a waiting period between the operation pattern at the time of the determination and the next operation pattern, wherein the slide is kept at its position during the waiting period.

Abstract: Provided are: a position command calculation unit which calculates a position command specifying a target position of a driven body driven by a servomotor; a counterforce command.

Abstract: A control apparatus of a machine tool includes: a slide position control unit configured to control a slide according to operation patterns; a pressure command generation unit configured to generate a pressure command for a die cushion according to the operation patterns; a pressure detection unit configured to detect an actual pressure of the die cushion; a die cushion speed control unit configured to control the die cushion, based on an error between the pressure command and the actual pressure; and a command reach determination unit configured to determine whether or not the error is greater than a pressure threshold, wherein the slide position control unit sets, based on a result of the determination by the command reach determination unit, a waiting period between the operation pattern at the time of the determination and the next operation pattern, wherein the slide is kept at its position during the waiting period.

Abstract: Provided is a numerical controller capable of easily controlling a pressure without a pressure sensor. The numerical controller estimates a pressure based on at least one of a command value and a feedback value. A machine learning device for learning the pressure corresponding to the at least one of the command value and the feedback value is included. The machine learning device includes a state observation unit for observing the at least one of the command value and the feedback value as a state variable, a label data acquisition unit for acquiring label data indicating the pressure, and a learning unit for associating and learning the state variable with the label data.

Abstract: Provided are: a position command calculation unit which calculates a position command specifying a target position of a driven body driven by a servomotor; a counterforce comm and.

Abstract: The operator identification system is capable of managing the information required for authentication of operators centrally with high operation rate. The operator identification system includes a manufacturing cell including a manufacturing machine and a cell controller that can communicate with the manufacturing machine. The cell controller includes a first operator identification information acquisition unit for acquiring operator identification information, a first operation permission/inhibition information storage unit for storing operation permission/inhibition information of the operator on the manufacturing machine, and a first operator identification unit for determining an operation executable by the operator on the manufacturing machine based on the operator identification information and the operation permission/inhibition information.

Abstract: The operator identification system is capable of managing the information required for authentication of operators centrally with high operation rate. The operator identification system includes a manufacturing cell including a manufacturing machine and a cell controller that can communicate with the manufacturing machine. The cell controller includes a first operator identification information acquisition unit for acquiring operator identification information, a first operation permission/inhibition information storage unit for storing operation permission/inhibition information of the operator on the manufacturing machine, and a first operator identification unit for determining an operation executable by the operator on the manufacturing machine based on the operator identification information and the operation permission/inhibition information.

Abstract: A controller that can perform high-precision synchronous control even when the speed of a master axis changes and a machine learning device are provided.

Abstract: A controller that can perform high-precision synchronous control even when the speed of a master axis changes and a machine learning device are provided.

Abstract: Provided is a numerical controller capable of easily controlling a pressure without a pressure sensor. The numerical controller estimates a pressure based on at least one of a command value and a feedback value. A machine learning device for learning the pressure corresponding to the at least one of the command value and the feedback value is included. The machine learning device includes a state observation unit for observing the at least one of the command value and the feedback value as a state variable, a label data acquisition unit for acquiring label data indicating the pressure, and a learning unit for associating and learning the state variable with the label data.

Abstract: The operator identification system is capable of managing the information required for authentication of operators centrally with high operation rate. The operator identification system includes a manufacturing cell including a manufacturing machine and a cell controller that can communicate with the manufacturing machine. The cell controller includes a first operator identification information acquisition unit for acquiring operator identification information, a first operation permission/inhibition information storage unit for storing operation permission/inhibition information of the operator on the manufacturing machine, and a first operator identification unit for determining an operation executable by the operator on the manufacturing machine based on the operator identification information and the operation permission/inhibition information.

Abstract: A machine control device includes a command unit that outputs individual operation commands to respective manufacturing machines; a power excess/shortage decision unit that decides whether time-series data on total power consumption of the manufacturing machines associated with the operation commands has maximum peak power larger than a power supply capacity of the power facility; and an operation command adjustment unit that adjusts the operation commands to the manufacturing machines from the command unit so as to adjust the maximum peak power to the power supply capacity of the power facility or less and maximize a production amount of the manufacturing machines.

Abstract: A servomotor in a numerical controller is controlled by automatically switching to either pressure control or position control in association with the command which is smaller from among a command obtained by performing pressure feedback control and a command obtained by performing position feedback control. When switched to pressure control while moving according to a movement command, the output of the movement command is terminated halfway, and the command in the next block is executed, and pressure control of the next command is immediately started. As a result, a wasteful time is eliminated, and a cycle time of the operation can be shortened.

Abstract: The numerical controller has function to switch between pressure control and position control, and comprises a numerical control unit and a servo control unit. While the servo control unit is controlling pressure, a servo position deviation amount corresponding to current actual speed of a control axis is set in the servo control unit. After the servo control unit switches to position control from pressure control, a number of pulses required for deceleration and stopping is output to an acceleration/deceleration processing unit of the numerical control unit according to an acceleration/deceleration time constant which is preset. The acceleration/deceleration processing unit outputs a moving amount for each distribution period to the servo control unit.

Abstract: A servomotor in a numerical controller is controlled by automatically switching to either pressure control or position control in association with the command which is smaller from among a command obtained by performing pressure feedback control and a command obtained by performing position feedback control. When switched to pressure control while moving according to a movement command, the output of the movement command is terminated halfway, and the command in the next block is executed, and pressure control of the next command is immediately started.

Abstract: A die cushion controller uses position control to position die cushion members for placement of a metal sheet. A pressing process starts and the upper die is lowered. When a position detector detects a position at which the upper die touches the sheet metal, the die cushion controller switches over from position control to pressure control and applies a preset pressure to the sheet metal. When the position detector detects that the upper die has risen to a preset position, the die cushion controller clears the positional deviation accumulated in position control to zero, then moves the die cushion members to preset positions and holds them there.

Abstract: An ‘interval’ in which the synchronization status between the movable axes subject to synchronous control is monitored, an equation between the movable axes in the ‘interval’, and an ‘allowable displacement’ for the positional relationship obtained with this equation and the actual positional relationship are set in advance. The ‘start condition’ and ‘termination condition’ for synchronous status verification processing are set with the master position and the like. When the start condition for synchronous status verification processing is satisfied, it is detected whether or not the actual position and the position obtained with the equation are within the range of the allowable displacement based on the position of the movable axes. If not within the range of the allowable displacement, operation set as ‘operation to be executed when the allowable displacement is exceeded’ is executed.

Abstract: Die cushion control device that implements die cushion control while making a switch between position control and pressure control by using servomotors, and reduces the impact caused by a collision between a press axis and a die cushion axis during position control. Die cushion members are controlled by servomotors Md. The changeover switch is connected to the “a”-side, to thereby control the position (velocity) of the servomotors Md by commands from a numerical controller and control the position of the die cushion members. During position control, the output torque of the servomotors Md is limited by torque limit means. During position control, even if the press axis hits the die cushion members due to erroneous setting, wrong operation or the like, the servomotors Md merely output only a limited torque or less, so that impact force is reduced, which prevents damage to the die cushion members and the press axis.

Abstract: A die cushion controller uses position control to position die cushion members for placement of a metal sheet. A pressing process starts and the upper die is lowered. When a position detector detects a position at which the upper die touches the sheet metal, the die cushion controller switches over from position control to pressure control and applies a preset pressure to the sheet metal. When the position detector detects that the upper die has risen to a preset position, the die cushion controller clears the positional deviation accumulated in position control to zero, then moves the die cushion members to preset positions and holds them there.