Machine Tool Attachments

Technical Q&A Q&A

NC Rotary Tables

Details on specifications

Example control flow charts

It is recommended to control with the servo ON for semiclosed loops in principle.
In case of fully-closed loop, control with servo OFF.
The following are recommended flow charts.

Note 1: In a semi-closed loop control operation, do not turn the Servo motor OFF even when the NC rotary tables is clamped.
Note 2: In a semi-closed operation, when the eccentric load increases in size, and a large current (70% or more of the rated current) is being applied, turn the Servo motor OFF and follow the steps for the full-closed loop control.
Note 3: Delay time is our recommended time.
Parameters may differ depending on the specifications. Ask us for further information.

Are there materials for examining the work cycle time when operating the NC rotary tables?

The graphs below show the required indexing time which includes the time for the control command for the machine tools. This information helps you examine the cycle time of your process with the the NC rotary tables. Table rotation speed and acceleration and deceleration constants may differ depending on the model of the the NC rotary tables. If any data other than that shown below is required, please ask us.

Note: For the above B and C cases, the indexing time includes the time to respond to the clamp and unclamp confirmation signals.

How large is the workpiece mounting space for tilting rotary tables?

Please see the following table.

Note 1: If the tilting angle is over the above range or the table stops by emergency stop, check the unit.
Note 2: Be sure to remove the eye bolts used for lifting before using the rotary table.

Is there a general guide for applicable servo motors when using other control devices?

FANUC αi type servo motors are specified for each NC table model in the specifications table. The table below shows other servo motors, which have equivalent capacity to those of FANUC αi motors.

Note 1: Some motors have speed reduction ratio (max rpm) or outline dimensions different from those of FANUC motors.
Note 2: The motors shown above are classified according to motor torque capacity. The motor which is suitable for your machines depends on the specifications of your machine NC controllers. Contact the machine manufacturer about motor selection.

What are the recommended cable plug connectors for the cable of rotary tables?

All cable plugs and connectors for TSUDAKOMA's NC rotary tables should be waterproof. Refer to the table below.

Note: JA06A☐☐ plug is waterproof when the plug is inserted.

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