Specifications

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SHENYANG MACHINE TOOL CO., LTD 30

5.2.3 X-axis and Z-axis

The carriage is driven to move along Z direction by Z-axis motor through ball screw rod,

the turret on the carriage is driven to move along X direction of the carriage by X-axis

motor through ball screw rod.

Principle of zero point reset: the machine of this series can be equipped with absolute

encoder and incremental encoder according to different control system provided.

5.2.3.1 Zero-Return for the Machine with Absolute Encoder

Within the moving area of carriage, there is a reference position called zero point of the

machine. The coordinate system of the machine set by NC device takes this zero point

as a reference point to realize the control of carriage motion. The two axes of the

machine have adopted the absolute encoders which possess memory function for the

servo system, and before the delivery of the machine, reference-point return has been

carried out and the mechanical coordinate system has been established, therefore, when

power off, the set coordinate system will be kept and memorized by the encoder.

Hereby, it is not necessary for the user to do reference-point return every time after

power on while operating the machine. Even if the system doesn’t alarm while the

reference-point is lost due to the energy loss of the battery or the reference-point

position of the machine has been changed due to the relative-position change of

servo-motor axis (X-axis and Z-axis) to the leadscrew (X-axis and Z-axis) while

maintaining, it is still necessary to reset the reference point. For the specific method of

reference-point setting, please refer to

《Instruction Book of Electric Unit》.

5.2.3.2 Zero-return for the Machine with Incremental Encoder

Within the moving area of carriage, there is a reference position called zero point of the

machine (usually named as reference point). The coordinate system of the machine set

by NC device takes this zero point as a reference point to realize the control of carriage

motion. While the NC device is powered on, the zero point of the machine may change,

so it is necessary to carry out the zero-point return before the auto operation. For the

specific operation, please refer to

《Instruction Book of Electric Unit》.

5.2.4 Turret

The turret of the machine is series SLD150A vertical turret which is designed by our

factory.

It doesn't need to be lifted. It adopts inner type cooling.

And the turret is up for indexing, the time for indexing is very short and positioning is

very accurate, available with both 4-station and 6-station. For details of operation and

maintenance, please refer to INSTRUCTION BOOK for SLD150A

— .

According to the user’s requirement, horizontal 6-station turret can be provided also.