The three-dimensional five-axis laser cutting machine is generally used to cut special products, and has high requirements for cutting machine processing. This also places high demands on the gearbox, which requires not only high precision, but also run-out and smooth operation.
At present, there are two main types of reducers used in three-dimensional five-axis laser cutting machines, the first is the harmonic reducer, which is also the most widely used. Although the accuracy of the harmonic reducer is very high, the input speed will resonate at 300-600 rpm, resulting in wavy patterns in the incision, which cannot achieve the desired effect. Moreover, the rigidity of the harmonic reducer is poor, and it is easy to be damaged in the case of high-speed operation, and the accuracy will slowly decrease when it runs for a long time. In addition, the harmonic reducer needs to make a connecting flange when it is connected to the motor, which is more troublesome to install.
To sum up, the most widely used harmonic reducer may not be the most suitable. Next, let's introduce the second type of reducer, which is a rare miniature cycloid reducer with harmonic size cycloid structure at home and abroad. Through the use of this reducer, the defects of the harmonic reducer in the three-dimensional five-axis laser cutting machine can be perfectly solved, let's take a look at its advantages.
1. Smooth operation without resonance. Although the accuracy of the micro cycloid reducer is not as good as that of the harmonic reducer, it will not resonate in the case of high-speed and low-speed operation, and the operation is more stable.
2. The impact resistance accuracy is durable and stable. The cycloid gear adopts the arc design of R angle teeth, which makes the product more impact-resistant and more durable, and is most suitable for frequent forward and reverse rotation.
3. The micron-level end hop runs more smoothly. The output end adopts crossed roller bearings, so that the runout of the end face can reach less than 1 wire, so that the equipment runs more smoothly.
4. Easy to install. The design of mechatronics makes the micro cycloid reducer directly connected to the motor, which is more convenient to install.
Through the above advantages, we know how the micro cycloidal reducer can make up for the defects of the harmonic reducer in terms of performance. The following experimental report can more intuitively let everyone understand the difference between these two types of reducers in application.
The following is a comparison of the impact experiments done by the customer of the three-dimensional five-axis laser cutting machine in order to verify the difference between the harmonic reducer and the micro cycloid reducer, and the front and back, left and right sides were hit five times in each direction.
1.In the impact test of the harmonic reducer, because the motor absorbs most of the kinetic energy, the impact on the reducer is very small, and it is buffered, but it leads to a significant shortening of the motor life.
2.In the impact test, the miniature cycloid reducer basically did not rotate much during the impact due to the tight occlusion between the teeth, and the reducer absorbed most of the kinetic energy, which can better protect the motor and prolong the service life of the motor.
What reducer is more suitable for three-dimensional five-axis laser cutting machine, now do you know?