Torque required for rotary table (index table)

Today, we are going to discuss the "Basic calculation of torque required for rotary tables and index tablesI'll make a note of that.

Here,Torque required to rotate a rotary table at a desired speed, regardless of whether it is electric or hydraulicI will share.

Rotary table/index table torque calculation

Things to know before calculation (important)

Regarding torque calculation for index tablesBasic ConceptI'll jot that down first.

This is fine if the manufacturer is decided in the early design stages, but if it is not decided, it should be possible to select it immediately regardless of which manufacturer it becomes later.It is necessary to know the expected operating conditions and the required torque.It is.

If you can perform basic calculations, I believe you can immediately adapt to changes in the manufacturer or drive structures even in the middle of the design process.The calculations I will explain today will be very helpful for initial design considerations.As we proceed with the detailed design,Finally, please finalize it with the selection software provided by the manufacturer.

The reason is that for example, in hydraulic indexers, the rotational torque itself is very large, so people tend to select compact indexers, but in addition to rotational torque,There are upper limits to the allowable moment of inertia.It's because of this. Since it's hydraulic, the rotational torque itself is large, but it's a limit to prevent damage during emergency stops etc. compared to normal rotational drive.

Also, when using a motor to drive an index tableThere is a load moment of inertia that can be controlled within the range of that motor size, called the inertia ratio.So, calculated here

1. Understand the load inertia (sum of A and B in the calculation sheet)
2. To ascertain the torque when rotating at the desired speed.
3. Verify that the drive source is capable of handling the load calculated in (1) and can output the torque calculated in (2).

Please design the system following this flow.

Basic calculation of torque required for rotary tables and index tables

Basic calculation of the required torque for an index tableHere are the steps.

About Excel files

Regarding the basic calculation of the required torque for the index table above, thank you to everyone who has used it so far. Starting in 2024, this file will beDownload sales at BASE　The following is a list of the products that are available for purchase.　If you need it, please use it after purchase.

That's it.