With the widespread use of
cam indexer products in the automation industry, more and more manufacturers are participating in the indexer market competition. In the environment of fierce price wars, how to choose a cost-effective one from the perspective of price and professionalism? There are certain difficulties in the indexer, so I will give you a general analysis from a professional point of view, hoping to really find the required and suitable indexer products among the dazzling products. In the procurement process, when we make product selection, the first thing we pay attention to is the price of the product. Then, what are the determinants of the indexer price?
The cam indexer is a device that transforms from continuous input drive to intermittent output. This rotary mechanical transmission is completed by the cam rotation indexing action with a complex sinusoidal curved surface. From a mechanical point of view, due to the internal mechanism The gap of accessories will affect the accuracy of the product itself and the accuracy of use. Then, the factor that guarantees the accuracy of the product is the material first, and the selection of different materials has a large price difference. The material used in the cam needs to reach a certain hardness to increase the wear resistance of the product, thereby ensuring the service life of the indexer. Especially for the selection of cam materials, most manufacturers use titanium materials with higher hardness and wear resistance, and the price difference between domestic titanium materials and imported titanium is large. This is the difference between imported materials and domestic materials.
In the internal structure of the cam indexer, the bearing is also a relatively important component, and the wear resistance of the bearing is also very high during the rotation transmission process. From the perspective of accuracy and service life, such as the American TIMKEN brand bearing, The continuous operating life can reach 80,000 hours. This kind of technology is currently not available in our country. Of course, its price is also expensive, which is several times or several times more expensive than the price of domestic bearings.
The internal components of the cam indexer include box body, output shaft, cam roller, input shaft, index cam, etc. On the whole, its structure is relatively simple, but due to the large number of internal joints of mechanical components, the processing of components The precision requirements are very strict. Therefore, when it comes to component processing equipment, it must be said that the processing technology level of China's machining industry has also made great progress in the past few decades. It can be compared with the production of processing machinery. Compared with the international advanced level, there is still a certain gap, especially in the production of high-precision processing machinery. Related to production machinery is measuring machinery. The accuracy of machining is checked by high-precision measurement. Therefore, the use of measuring equipment is closely related to accuracy guarantee. The use of the above processing equipment described by us should explain the processing cost, because another factor of the price comes from the processing cost.
Another determinant of product price is the investment in technology. The technology covered by the cam indexer from product selection, design, to processing and measurement reflects the exquisite processing technology of the engineering team, such as in the early stage of product selection. , For the matching degree of product technical parameters, it is a calculation process of professional technical parameters and experience, because the calculation involves many parameters, such as the number of divisions, the driving angle, the number of rotations of the force axis, the diameter of the disc, the thickness, Material, fixture weight, workpiece weight, center distance, etc., even if these parameters are calculated by a professional engineer, they are also valid data obtained through a combination of theoretical data and actual processing experience, because the selection means the product The degree of matching also determines the key to the product price.
During the assembly process of the cam indexer, in order to achieve the required use accuracy, the assembly between the components must achieve better mechanical assembly performance, including during use, due to the friction and transmission between the internal components, heat and thermal expansion will be generated Cold shrinkage will cause the deviation of the matching gap, which will affect the accuracy of the use. Therefore, in the selection of materials, in addition to the factors to be considered in the selection of raw materials mentioned above, a comprehensive evaluation of the overall components must be carried out. The thermal expansion coefficient of each component is required to be consistent or similar, so that it will not cause excessive deviation due to product heat and other reasons during use.
The production, processing and use of machinery is an eternal topic. The same is true for cam indexers. Due to the continuous advancement of automated production technology in recent years, people’s demand for product innovation and technology has become higher and higher, as are products of the indexer category. Similarly, other similar products that can achieve intermittent operation, such as DD motors, have also entered this market one after another. Compared with indexers, direct drive motors will have certain advantages in terms of accuracy, flexibility, and appearance. In terms of low cost, high torque, wide diameter, heavy load, and stability, the
cam indexer with intermittent rotation function is currently irreplaceable.
TAG:
