2. In the production of enameled wire, steel wire, steel strip and cloth, the product length can be measured using the method as shown in Figure 13-12. The length measuring roller is mounted on the same shaft as the toothed disc, and the proximity sensor is mounted on the side of the toothed disc. If the number of teeth of the toothed disc is N, then the long-range proximity sensor outputs N pulses for each week of rotation of the toothed disc. At this time, the length measuring roller coaxial with the toothed disc also rotates for one week, which is equivalent to the length of the measured item being rolled over as D, then the length corresponding to each pulse is K=rcD/N The total length of the measured item is L= MK In the formula, D is the diameter of the length measuring roller; M is the total sum of measuring pulses.
3. Counting of production line workpieces
The proximity sensor is set on the side of the workpiece conveyor, when the conveyor is running, one workpiece passes the proximity sensor: when the workpiece is close to the sensor, the proximity sensor outputs the pulse switch signal.
4. the limit of the robot
5. In the automatic production line using a variety of manipulators, they are constantly engaged in the work of handling work pieces. To ensure the accuracy of the robot gripping and placing the workpiece position. In order to ensure the accuracy of the robot gripping and placing the workpiece position, Zhuang often use long-distance proximity sensors to limit their range of motion. The proximity sensor is set at the left and right position of the robot arm, and when the robot arm moves left and right near the proximity sensor, the sensor senses the proximity of the arm and outputs a control signal when the specified detection distance is reached, and the robot is stopped by the actuator.
