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Rotary index drive schematic _ Detailed explanation and definition of the internal components of the rotary index drive

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Update time : 2019-04-07 19:19:00
The internal structure of the rotary index drive is relatively complicated. The main structure of the cam and the curved body inside the rotary index drive achieves a certain segmentation angle after complicated processing conditions, and at the same time, it needs to meet a certain segmentation precision. The finishing of the cam is impossible to achieve by hand, especially the large precision is ±0.002, or even higher. Xiaobian will introduce the structure inside the cam indexer.
  First of all, the indexing cam, the indexing cam is fixed on the input shaft, and the main function is to cut into the surface of the solid body of the groove during the operation to perform the splitting action.
  The dimensional support ribs, which are located on the circumference of the dimensional support ribs, are called dimensional ribs, and are in linear contact with the cam rollers during operation between the grooves of the cam. The so-called cam roller is the dividing medium of the indexing cam, which is a precision needle roller bearing fixed on the output turret, capable of withstanding heavy load and high speed rotation, and the cam roller and the indexing cam complete the direct splitting action.
index of drive,cam indexing drive
  Let's talk about the output turret, the bearing component attached to the output shaft, and the cam gear driven by the indexing cam to drive the movement. The accuracy of the output turret is the key to maintaining the accuracy of the rotary index drive. factor.
  Let me talk about the technical parameters involved in the component, the number of pauses (also called the number of stops), which is the number of stops of the output shaft in each rotation (360 degrees). When the output shaft performs the splitting action, the angle of the input shaft rotation is professionally called the drive angle (also called the cam index angle). As can be seen from the state of rotation, the larger the angle of the drive, the more the split motion smooth. In the case where the output shaft is fixed, the angle at which the input shaft rotates, the sum of the angle and the driving angle is 360 degrees.
  In addition to the above parameters, there are terms such as the number of revolutions, static torque and dynamic torque, which are also used in the technical hypothesis of rotary index drives.
  In short, the rotary index drive is a complicated mechanical transmission system in terms of technical processing, production and technical hypothesis. It seems to be simple in structure, but the mechanical principle involved and the precision of curved surface transmission science. It is not available in other transmission mechanisms.
 
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