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Common structure of hollow rotating platform

Time:2020-10-31    Edit by ZhuoChuang

The hollow rotating platform is a revolutionary product. Used in a variety of rotating sports occasions. Can replace DD MOTOR and cam divider. It combines high work efficiency, high precision, high rigidity, and high cost performance. It is a revolutionary product in the rotary motion mechanism.


It strikes a balance between the two, repeat positioning accuracy is less than 5 seconds, the motor is easily configured, and the load is stable. It can be used with AC servo motor or stepping motor to do any angle division, which can not only meet the digital control that the divider cannot achieve, but also the positioning accuracy. Comparable to DD motors. It can greatly reduce costs and bring you unexpected results.


Hollow structure

The turntable of the hollow rotating platform is a hollow structure, and the servo motor is connected to the side, which is convenient for the installation of the gas pipe and the wire in the jig.

High repeat positioning accuracy

The hollow rotating platform adopts a single-stage helical gear deceleration method to increase the output torque, and the gear accuracy grade is below grade 5. In addition, the flexible adjustment mechanism can control the backlash by changing the center distance of the two gears, so that the hollow rotating platform is empty. The return is extremely small, and the repeat positioning accuracy is below 5 arc seconds.

High rigidity

The turntable of the hollow rotating platform is supported by a set of precision cross-roller bearings. The rollers in the bearing are staggered by 90 degrees, and the diameter of the rollers is slightly larger than the size of the raceway between the inner ring and the outer ring of the bearing. There is a pre-tightening force between the inner and outer rings and the rollers. The servo rotating platform turntable supported by the bearing can withstand various moments such as radial, axial and overturning, and its rigidity is more than 10 times that of traditional bearings.

High rotation accuracy

After the servo rotating platform is assembled, take the cross roller bearing of the platform as the center of rotation, and again grind the outer diameter and end face of the turntable (standard grade is fine turning) to ensure the coaxiality and parallelism of the turntable. tolerance.

Arbitrary motor configuration

The hollow rotating platform can flexibly change the size of the interface by customizing the flange and the input shaft hole, which is suitable for connecting any brand of servo motor and stepper motor.

Scope of application

1. Numerical control indexing device

2. Manipulator joint

3. The fourth machining axis of the machine tool

4. Military radar

5. Automated production line

Common structure

Direct CR

The motor shaft is concentric with the central axis of the turntable as a direct rotating platform

Side-mounted SR

The motor shaft is parallel to the central axis of the turntable as a side-connected rotating platform

Rangefinder RR

The motor shaft is perpendicular to the central axis of the turntable as a paraxial rotating platform