Analysis of working principle of precision intermittent CAM divider

CAM separator, also known as precision intermittent CAM separator, has become the future development trend of automatic machinery instead of manual. As the core part of automatic machine, precision CAM splitter is gradually familiar to people. It has the characteristics of precise indexing, smooth motion curve, high-speed mechanical properties, and can be seen in automated assembly, packaging, food industry, pharmaceutical industry and other fields.

The working principle of the CAM splitter is: on the yoke of the input shaft, the CAM is engaged perpendicular to the pitch plate that is evenly distributed on the needle bearing of the output shaft, and the curve segment of the CAM shape drives the needle bearing of the pitch plate to rotate the pitch plate, and the straight segment stops the pitch plate and automatically locks it. The stability of rotation process of precision intermittent CAM divider (i.e., work station translation and stop state process) is related to the indexing accuracy of pitch plate, the machining accuracy of CAM curve and the surface roughness of CAM curve. There is no gap between the engagement of the CAM and the pitch plate, so the uneven index of the needle roller bearing of the pitch plate may cause some gap between the needle roller bearing and the CAM surface, or excessive pressure. When the splitter works, it shakes under the action of moment of inertia. When the surface roughness of the CAM curve is too large, the roller bearing will vibrate when rolling the surface of the CAM curve, and the vibration will be transmitted to the output shaft and the matching station plate, thus affecting the yield of the workpiece in the production process of the equipment.

CAM splitter is a kind of intermittent motion mechanism, which has the characteristics of high index accuracy, stable operation, large torque transmission and automatic locking during positioning. The following describes the installation process of the CAM divider and the installation of the input and output shafts.

1. The slitting machine is a high-precision slitting machine mechanism after processing and accurate assembly adjustment. Before using the CAM divider, the user shall not adjust, disassemble or assemble it without authorization.

2. Check whether the mounting surface of the partition board is damaged. If it is damaged, trim it with a stone.

3. Align the input and output shafts, fill the positioning pins, and tighten the screws evenly.

4. The splitter plays the role of pulsating load torque, so the installation must be very strong.

The CAM splitter manufacturer mentions that since the CAM splitter mounting surface is perpendicular or parallel to the input and output axes, the device mounting base must ensure that the CAM splitter input and output axes are coaxial with the desired input and output directions of the device. Not crooked or biased. Otherwise, it will not only affect the output accuracy, but also seriously damage the CAM splitter. At this time, the splitter is in an abnormal stress state.

Do you understand the above CAM splitter installation process?