CNC indexing disc is an important accessory used in CNC machine tools. The following is a detailed introduction about it:

Definition and Function

Numerical control indexing disc is a device that can accurately divide or index workpieces in the circumferential direction according to the instructions of the numerical control system. It is mainly used for machining parts that require circular indexing, such as gears, spline shafts, camshafts, indexing discs, etc., so that these parts can be accurately positioned and rotated during the machining process to meet machining accuracy and process requirements.

Structural principle

Numerical control indexing discs are usually composed of the indexing disc body, transmission device, drive motor, encoder, braking device, and control system. The indexing disc body is the main component for achieving indexing, with evenly distributed scales or positioning slots on it. The transmission device is used to transmit the power of the driving motor to the indexing plate body, achieving precise rotational motion. The driving motor generally adopts servo motor or stepper motor to provide precise power output. The encoder is used to monitor the rotation angle of the indexing disc in real time and feedback the angle information to the control system for precise position control. The braking device is used to fix the indexing disc in the designated position after the indexing is completed, preventing it from displacement. The control system controls the operation of the driving motor according to the input instructions, thereby achieving precise indexing of the indexing disc.

classification

According to the structural form, it can be divided into vertical and horizontal dual-use CNC indexing discs, single indexing CNC indexing discs, and universal CNC indexing discs. The dual-purpose CNC indexing disc can be used in both vertical and horizontal installation modes, with high versatility; Single indexing CNC indexing discs can only achieve indexing at a single angle; The universal CNC indexing disc can achieve indexing at any angle.

According to the transmission method, it can be divided into worm gear transmission CNC indexing disc, gear transmission CNC indexing disc, and direct drive CNC indexing disc. The CNC indexing disc of worm gear transmission has the advantages of large transmission ratio, high precision, and good self-locking performance; Gear transmission CNC indexing disc has high transmission efficiency and good rigidity, but relatively low accuracy; The direct drive CNC indexing disc adopts direct drive technology, which has the advantages of fast response speed, high accuracy, and compact structure.

application area 

In the field of mechanical processing, CNC indexing discs are widely used in various CNC machine tools, such as machining centers, milling machines, lathes, etc. In automobile manufacturing, it is used to process parts such as engine cylinder blocks, transmission housings, and wheel hubs; In the aerospace field, it is used to process high-precision parts such as aircraft engine blades, impellers, and aviation gears; In mold manufacturing, it is used to process various types of mold cavities, cores, etc.