The determination of the cam curve of a cam divider is a complex process that requires comprehensive consideration of multiple factors. Firstly, the motion requirements of the equipment need to be considered. If the equipment needs to achieve constant speed intermittent motion, such as on an automated packaging assembly line, for intermittent product transportation, a cam curve with constant speed motion characteristics, such as the constant speed curve of a cylindrical cam, is more suitable. This curve ensures that the angular velocity of the output shaft remains consistent at each indexing stage, allowing the conveyed product to be transported at a stable pace.

Secondly, the size and nature of the load also have a significant impact on the cam curve. For heavier loads, it is necessary to choose a cam curve that can provide sufficient torque and move smoothly. For example, in glass processing equipment, if the glass blank is heavy, a curve with good dynamic performance can be considered. If there is a significant inertia in the load, such as in some high-speed rotating large disk type machining equipment, a cam curve that can effectively buffer the inertial force during the start and stop phases, such as a modified sine curve, is needed. This type of curve has a relatively gentle acceleration change at the beginning and end stages of motion, which can reduce inertial impact.
Furthermore, the number of divisions and motion speed of the cam indexing rotary table are also key factors. The number of divisions determines the number of pauses and movements of the output shaft within a working cycle. For example, in automatic drug sorting equipment, a high number of partitions may be required to achieve precise sorting of multiple drugs. The speed of movement is related to production efficiency, and high-speed equipment requires cam curves to ensure accuracy and stability during high-speed stages. Generally speaking, when the speed is high, curves such as conjugate cam curves that can effectively reduce vibration and impact are better choices.
In addition, the precision requirements for equipment operation cannot be ignored. For high-precision machining equipment, such as precision electronic component manufacturing equipment, cam curves are required to accurately control the position and motion state of the output shaft. In this case, some specially designed high-precision cam curves are needed, which can be determined through complex mathematical models and optimization algorithms to meet the requirements of micrometer level or even higher precision motion control.