The driving source of the cam indexer from the market point of view, most of them use ordinary gear reducer motors, stepping motors, servo motors, etc. With the development of science and technology, the technical requirements of machinery are getting higher and higher, and most engineers are choosing products. There will be confusion in the process, whether to directly choose the DD motor or choose the assembly of the cam indexer and the drive motor. Today, I will talk about the difference between the two transmission machinery.
Precision
From a precision point of view, DD motors have an advantage. Most of them are directly connected to the driving equipment, which reduces the positioning error due to the mechanical structure. Compared with the cam indexer, it reduces the size due to the friction of the mechanical structure. In terms of errors, DD motors are equipped with high-resolution encoders, so its accuracy can reach a level higher than that of ordinary servos. As for the cam indexer, some products can also achieve the same accuracy, which requires manufacturers to control the accuracy when selecting the indexer. The accuracy of cam indexers produced by most non-standard indexer manufacturers cannot reach 0.002mm. Therefore, if you choose cam indexers for matching, you should give priority to the brand.
Energy saving
Since the advantages of DD direct connection cannot be achieved by indexers, cam indexers are incomparable in terms of energy saving, because any indexer must require a power source, and the increase in mechanical operation links means friction. The increase.
load
Under the premise of light load, DD motor has certain advantages in the use of DD motor and cam indexer, but under heavy load and high speed, the stability and applicability of cam indexer are better than DD motor.
Life and cost
Life and cost are the main considerations for customers, because a DD motor with the same accuracy and performance is several times, or even dozens of times higher than the purchase cost of the cam indexer matched with the motor. This is also the demand for manufacturers under the same conditions. Most of the main reasons for the use of cam indexer transmission, the energy consumption of cam indexer due to the friction of the matching transmission mechanism is far lower than the cost of DD motor, so when selecting DD motor and indexer, the overall cost is calculated after It is wise to decide to use it. From the life of the product, the current brand cam indexer has a service life of more than ten years, and DD motors have a service life of more than ten years. It is still relatively small. This is also a direct drive. The shortcomings of the motor.
In short, the choice of cam indexer and DD motor should be based on the actual production needs of each demanding manufacturer, combined with the company's own situation, the reason for the adoption of any product comes from the value that the product can bring to the company
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