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How to choose cam divider for automatic turntable-Rotary indexing table

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Update time : 2019-06-29 22:01:32
Intermittent cam indexers are commonly used in five major types, and in the use of automated machinery, the turntable machine occupies a large proportion, then, in the design of the turntable machine, the transmission part involved, when selecting the cam indexer Should we look at the types of indexers, engineers tell you what kind of indexer should be suitable for automated machinery?
Rotary indexing table
For a detailed description of the specific application characteristics of the commonly used five types of indexers, make a detailed explanation and supplement. DF flange type indexer, the output end has flange center, disk surface screw hole, positioning pin hole, etc. The fixing surface is spacious, which can enhance the flatness and stability, making the movement more stable and stable. This indexer is recommended for use in the middle. The high-speed light-load type automatic turntable system, because of its high-speed operation, its output positioning is stable, and some small diameter turntables can be used.
The DS mandrel indexer, in the form of a shaft output, is mostly used for indirect transmission, for example, through other devices such as gears or reducers, and then connected to the driven device, which engineers believe is used for this type. There are many cases of automated assembly lines. The mounting and fitting of the mounting parts are matched with the gears. Special attention should be paid to the hole tolerance (+0.015/-0). There is less intermittent motion applied to the turntable, because the output shaft of such a indexer is longer, and the radial error data of the system needs to be considered.
DA ultra-thin platform type indexer, this type of cam indexer has similar size design characteristics to the platform desktop type function. It can withstand large axial load and vertical radial pressure during driving operation, and has a convex fixed disk surface at the output end. Large-aperture hollow shaft can be equipped with kinetic energy and static energy to automate peripheral equipment. The electric, oil and gas pipelines of the power source can be placed in the hollow hole. The larger output flange surface makes the connection with the turntable more stable. The large radial area is the advantage of its ability to carry heavy loads. The internal mechanism is closely matched. The cam and the turret are almost seamless, and the precision can reach the highest level of the same type. This model is recommended for heavy duty and high precision indexers.
DT-type platform desktop indexer, this type of cam indexer's size design features similar to the DA-type function, higher than one level of load on the ultra-thin platform type, on the one hand designed a large base, whether in the axial direction or It can carry a large load in the radial direction. There is a convex fixed disk surface and a large-aperture hollow shaft at the output end. It can be equipped with dynamic and static automatic peripheral equipment. This type can be used for heavy-duty disc machinery.
The PU flat type indexer, also known as the parallel indexer, has a mechanism design of a parallel common rail cam, which is achieved by rotating two roller-shaped cams coupled to the input shaft to drive the roller turret to rotate. The function of output shaft indexing is more suitable for belt conveyor with larger pitch, or for intermittent indexing with longer dwell time. This type of indexer is also used in pipeline transmission. The accuracy is not the above four types. High, due to the application of heavy-duty assembly lines or conveyor belts, most of the precision is not too high.
Above, the engineer introduced in detail the selection points of the indexer used in the turntable. Of course, when selecting the cam indexer, the list is only the general selection direction. We have to go through the complicated selection in the actual selection. The selection operation combines the requirements and technical parameters of each link. At the same time, it also takes into account the specific design and operation costs. It is recommended that the detailed selection of the indexer should be assisted by the manufacturer of the indexer.