Customers using cam indexer, will encounter cam indexer turntable jitter phenomenon, then how do we go to investigate and eliminate the jitter phenomenon?
First, confirm whether the cam indexer is stopped to the stationary angle, if the drive angle in the drive angle to stop the cam indexer drive motor, will cause the cam indexer turntable jitter phenomenon. If the angle of repose is 90 degrees, where is the angle of repose 90 degrees? Just take the input shaft keyway as the observation starting point, toward the output shaft direction, up and down can not exceed 45 degrees, a total of 90 degrees, which is the stationary angle of 90 degrees of the azimuth range. See if the input keyway stops within the 90-degree angle of repose, and if it does not stop within the 90-degree range, there will be cam indexer turntable jitter phenomenon.
Second, the motor torque is not enough to carry the load of the cam indexer, which will also cause the turntable to shake. Often stepper motor drive to focus on. As the stepper motor rotation itself can not turn too high , in order to meet the cam indexer division time, there is no gearbox, directly driven by the stepper motor directly, then the possibility of insufficient torque is greatly increased. With speed micro motor should also pay attention to, most customers will think, speed motor speed range is very large, from 90-1400 rpm can be adjusted at will within the number of revolutions, in fact, this is not the case, the speed range of the motor is very limited, 600 rpm or less, the motor torque becomes a lot smaller, the motor torque is not enough to take the cam indexer will cause the turntable jitter. Therefore, it is not recommended that the customer's speed is not less than 600 rpm. If the power of the motor itself is selected small, it will also cause the indexer to turn jittery.
Third, whether the connection part is screwed firmly. Between the turntable and the indexer, between the indexer and the fixed frame, between the cam indexer and the motor reducer, etc., all need to be checked one by one.
Fourth, the cam indexer model is small. If the torque generated by the rotation exceeds the range of cam indexer can withstand, will also cause the cam indexer jitter, how do you know the cam indexer model is small, no relationship, contact Shenzhen Hengtuo Precision Machinery Co., Ltd, we have a professional senior engineers, will be based on your working conditions (including: diameter of the rotary table, weight of the rotary table, number of workstations, fixture weight of the workpiece, rotation and stopping time and other parameters) calculate the We will calculate the torque and select the motor power and reducer ratio according to your working conditions (including: diameter of the turntable, weight of the workpiece, weight of the fixture, rotation and stopping time, etc.)
Fifth, if the above problems have been ruled out, it is necessary to pay attention to the cam indexer processing and assembly problems, perhaps the cam indexer curve is not processed perfectly in the second half, resulting in cam roller and cam curve contact with the virtual position, the virtual position will also cause the cam indexer jitter, especially fast or heavy load will be more obvious. It may also be assembly problems, not adjusted to the right position, there will also be shaking phenomenon.