The axial force sensors are the devices that are used in the precision machining fields, which are dedicated to measure the axial force or torque of the moving parts on the machines, in order to ensure the alignment and accuracy of the works.
In the precision machining work fields, there would be various kinds of machining works that apply the milling machines or lathes. The operation method of the former is that the workpieces stay static, and the cutting tools spin and move with axial orientations, while the latter is that the workpieces spins, and the cutting tools are static but move axially on the workpieces as well.
No matter what kind of machine that is applied, the movements of the works are all related to axes. Typical milling machines or lathes work from three axes, including x, y, and z-axis. While the advanced machines that are combined with the CNC system are able to achieve up to six axes of movements.
The axial force, is the linear force that is measured when an object moves. In the milling machines or the lathes, the axial force is what the cutting tools and the workpieces produce during their interaction.
This force can be either stretching force or compression force, which is determined by the orientation of the moving object. In the milling machines or lathes, there would be more than one axes of movements, and whether the force of each axis is even or not is important when it comes to precision machining.
Therefore, the axial force sensors are required to conduct the measurement about this parameter. There are either single axis or multi-axis force sensors that can be seen on the markets, and both of them are widely used for the measuring of the axial force, which would be discussed in the following paragraphs.
As the above paragraph has mentioned, there are two types of axial force sensors, including single axis and multi-axis force sensors. Each of these two types is adopted
depending on different factors that determine if the axial force sensors meet the manufacturers’ requirements.
● single axis force sensors
The single axis force sensor, as the name implies, is capable of measuring from only one axis at a time.
There would be a sensor module that is fastened on the device, and connected to a cable that transmit the performance of the force to the data collector, in order for the operators or engineers to analyze and evaluate the works.
When the machine being tested is a machine that works from several axes, more efforts and times of the measurements should be done, as the main characteristic of this device.
●multi-axis force sensors
If the several times of measurements are troublesome as they take time and efforts, or there is limitation of the space where the measurements are available to be conducted, then the multi-axis force sensors would be the better alternatives.
The multi-axis force sensors are capable of measuring the movements from multiple axes simultaneously, which reduces the time for adjusting the device as well as for the collecting and sorting of the data.
In addition, the multi-axis come in different sizes, which allows them to be applied for the loads of merely a few grams, or several thousand ponds of loads. This makes the multi-axis force more versatile as they can accommodate to different scales of loads and free from the limitation of the spaces for the measurements.
The axial force sensor is compatible with the objects that are supposed to be measured no matter how they work. Whether the objects are static and move linearly, or rotate rapidly, this device is able to conduct the measurement accurately without problem.
With the first feature that the axial force sensor owns, it has the compatibility with the static or rotating objects when they are performing axial movements. In other words, this device can not only evaluate for the force of the objects, but also measure the torques when they are rotating.
Besides, the several axes of movements can be evaluated with either a number of single axis force sensors or one multi-axis force sensor, which indicates the versatility of this kind of device as well.
● sensitive to synthetic chemicals
When the object that is supposed to be tested is covered with layers of paint or chrome, or other synthetic chemical coatings, this device is still sensitive to the force, which means that even if there are synthetic chemicals covering the object, it is less possible to be the obstacle for the sensor to conduct the measurements.
● insensitive to natural chemical effects
However, as most of the machine components, the sensitivity of the axial force sensor would be reduced due to the natural chemical effects, such as the humidity of the environment, the oil vapor, or the rust that is formed resulting from corrosion. Therefore, the maintenance of the objects being tested is important for the accuracy of the measurement as well.
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