摘要:
A numerical control system comprising a numerical control device, a machine tool for machining a workpiece under the control of the numerical control device, and a robot for executing various tasks such as mounting the workpiece on the machine tool or demounting the workpiece therefrom. The numerical control device, in addition to the hardware which it possesses for controlling the machine tool, is further provided with a teaching control panel, a heavy current circuit which handles the exchange of data between the numerical control device and the robot, and a switching control circuit for switching over the output side of a pulse distributing circuit so that the pulse distributing circuit can be used in controlling both the robot and the machine tool. Machining data for control of the machine tool and data for commanding the robot are stored in a memory device incorporated in the numerical control device, or in a storage medium which is located externally of the system. The stored data can be read out in succession to designate the machine tool, which will then perform a machining operation, or to designate the robot which will respond by executing a prescribed task or tasks.
摘要:
Teach data for directing the operation of an industrial robot is entered from a teach operating panel and set in a teaching memory. Machine work identify, insufficient machine work detect and other similar external data and data, such as the current and teach positions of the robot, are set in a work memory. A processor accomplishes write/read control of the teaching memory and the work memory and processing of the various data. In accordance with the result of processing by the processor, the robot is controlled and, in accordance with the contents of the external data, the teach data or the sequence by which the teach data controls is modified, thereby to efficiently operate the robot.
摘要:
A numerical control system suited for application to a machine tool having an axis of rotation, such as a robot which employs a cylindrical coordinate system. For example, when the arm (3) of an industrial robot is rotated to transport a wrist (2), which is attached to the end of the arm (3), from a starting point (P.sub.1) to an end point (P.sub.2), the straight line (L.sub.n) interconnecting the starting point (P.sub.1) and the end point (P.sub.2) is divided into a plurality of intervals {Q.sub.i, Q.sub.(i+1), . . . }, positional data for each axis at each of the division points is generated, and linear interpolation for each of the intervals is performed by using the positional data for each axis to move the wrist (2) approximately along the straight line.
摘要:
The hand of a robot is moved from an instant position P.sub.1 to a first command position P.sub.2 to grip one of the workpiece W.sub.1,W.sub.2,W.sub.3 placed at the first command position and conveys the same to a second command position P.sub.3. A sensor is contacted by the workpiece when the hand takes an intermediate position Px on its way from the instant position P.sub.1 to the first command position P.sub.2, the robot control system stops the hand without delay or after travel of the hand over a predetermined distance and, after the travel of the hand over a predetermined deceleration distance, stops the hand. The hand is then moved from the stopping position to the second command position P.sub.3 neglecting the remaining stroke or movement between the stopping position and the first command position.
摘要:
A method and apparatus for controlling the acceleration of the frequency at the beginning of a pulse train and the frequency at the end of the pulse train, so that a movable element with little rigidity, such as a robot arm, can be started and stopped smoothly without vibration. The method includes storing frequency function in a memory, which frequency function represents an acceleration characteristic or a deceleration characteristic, reading the frequency function out of the memory at a predetermined interval, computing a frequency at the present time, and generating a number of pulses, corresponding to the product of the computed frequency and the predetermined time interval, during the predetermined time interval.
摘要:
A robot control system for teaching and operating a robot 13 on the basis of a rectangular coordinate system, the robot having an arm which operates on the basis of a cylindrical coordinate system. Provided are a teaching device 101 for providing instructions in the rectangular coordinate system in order to teach the operations performed by the robot 13, a rectangular-to-cylindrical conversion device 104 or 202 for converting the instructions in the rectangular coordinate system from the teaching device 101 into command data in the cylindrical coordinate system, and a data memory 108 for storing the acquired command data in the cylindrical coordinate system.
摘要:
An apparatus for feeding workpieces to a workpiece gripping position of a hand of an industrial robot, especially a workpiece feeder used for a limited axis robot, comprising a conveyor which is mounted on a table and has a plurality of pallets, the workpieces placed on the pallets moved intermittently to a predetermined area of the robot, characterized in that the table has a window, that each of the pallets comprises a lower plate having a central opening and an upper plate mounted on the lower plate, and that there is provided a lifting means movable vertically through the window in the table and the central opening in the lower plate, causing the upper plate to move and to lift the workpiece placed on the upper plate up to a workpiece gripping position of a hand of the robot.
摘要:
A robot control method and apparatus of the type in which robot operations are taught in advance and the robot is subsequently actuated in accordance with the robot instruction data so taught. Areas in which the robot is forbidden to enter are established and the resulting information is stored in a memory. During the teaching of the robot operations the robot instruction data is created by moving the robot without regard to the forbidden areas. Thereafter, the robot instruction data so created is modified using the forbidden area information, the robot being controlled on the basis of the data so modified.
摘要:
A numerical control method and apparatus for controlling the movement of a movable member by setting entry forbidden areas which the movable member is forbidden to enter. Entry forbidden information relating to the boundaries of the entry forbidden areas is created and stored in memory, the current position of the movable member is monitored, the entry forbidden information is used to determine whether the current position of the movable member has entered a forbidden area, and the movement of the movable member is halted when the current position thereof has entered an entry forbidden area.
摘要:
A wrist mechanism in an industrial robot comprises a wrist, a rotary type actuator which is rotatable in clockwise and counter-clockwise directions, a first positioning board which can define arbitrary angular stopping positions, sensing devices, and a second positioning board which is arranged facing the first positioning board, wherein the sensing devices detect the angular position of the wrist, which is driven by the rotary type actuator, the rotary type actuator is stopped by signals produced by the sensing devices, and the second positioning board with tapered receptacles is pressed to the first positioning board with tapered pins, whereby the positioning of the wrist mechanism is carried out.