A rotary index table is a precision device used in manufacturing and automation to rotate a workpiece or tool to a specific angular position. It plays a crucial role in applications such as machining, assembly, inspection, and packaging. To enhance the functionality, accuracy, and efficiency of a rotary index table, various accessories can be employed. As a leading supplier of Rotary Index Tables, I will introduce you to some common accessories that can complement your rotary index table.
1. Clamping Devices
One of the most fundamental accessories for a rotary index table is a clamping device. These devices are used to securely hold the workpiece in place during the indexing and machining processes. There are several types of clamping devices available, each with its own advantages and applications.
- Vise Clamps: Vise clamps are a popular choice for holding rectangular or square workpieces. They provide a strong and reliable grip, and can be easily adjusted to accommodate different workpiece sizes. Vise clamps are typically made of high - strength steel and feature a smooth jaw surface to prevent damage to the workpiece.
- Magnetic Chucks: Magnetic chucks use magnetic force to hold ferrous workpieces. They are ideal for applications where quick and easy workpiece changeover is required. Magnetic chucks can be either permanent - magnet or electro - magnetic. Permanent - magnet chucks are simple and require no external power source, while electro - magnetic chucks offer variable magnetic force control.
- Hydraulic Clamps: Hydraulic clamps are suitable for applications that require high clamping force. They use hydraulic pressure to generate a strong grip on the workpiece. Hydraulic clamps are often used in heavy - duty machining operations where the workpiece is subjected to high cutting forces.
2. Indexing Plates and Dividing Heads
Indexing plates and dividing heads are essential for achieving precise angular positioning of the rotary index table.
- Indexing Plates: Indexing plates are circular plates with a series of holes or slots arranged in a specific pattern. By using a pin or a dog to engage with the holes or slots, the rotary index table can be accurately indexed to a desired angle. Indexing plates come in different sizes and hole patterns to accommodate various indexing requirements.
- Dividing Heads: Dividing heads are more sophisticated devices that allow for more complex indexing operations. They can be used to divide a full rotation into a large number of equal or unequal parts. Dividing heads often feature a worm and worm - gear mechanism, which provides high precision and smooth operation.
3. Drive Systems
The drive system of a rotary index table is responsible for providing the power and motion required to rotate the table. There are several types of drive systems available, each with its own characteristics.
- Servo Motors: Servo motors are widely used in modern rotary index tables due to their high precision, speed control, and torque capabilities. They can be programmed to achieve accurate positioning and smooth rotation. Servo motors are often paired with a servo drive, which provides the necessary control signals to the motor.
- Stepper Motors: Stepper motors are another popular choice for rotary index tables. They operate by moving in discrete steps, which makes them suitable for applications that require precise positioning. Stepper motors are relatively simple and cost - effective, but they may have limitations in terms of speed and torque compared to servo motors.
- Cam Drives: Cam drives use a cam mechanism to convert the rotary motion of a motor into intermittent or continuous indexing motion. Cam drives are known for their high reliability, high - speed operation, and precise indexing accuracy. For example, our Hollow Bore Rotary Indexers and Swing Roller Gear Index Table often utilize advanced cam drive technology to ensure smooth and accurate operation.
4. Feedback Devices
Feedback devices are used to provide information about the position, speed, and other parameters of the rotary index table. This information is crucial for maintaining the accuracy and performance of the table.
- Encoders: Encoders are commonly used feedback devices in rotary index tables. They can be either incremental or absolute. Incremental encoders provide information about the change in position, while absolute encoders provide the exact position of the table at any given time. Encoders are typically mounted on the motor shaft or the index table shaft to measure the rotational movement.
- Proximity Sensors: Proximity sensors are used to detect the presence or absence of an object. They can be used to detect the position of the workpiece or to trigger certain operations at specific positions of the rotary index table. Proximity sensors can be based on different technologies, such as inductive, capacitive, or optical.
5. Lubrication Systems
Proper lubrication is essential for the smooth operation and long - term reliability of a rotary index table. Lubrication systems help to reduce friction, wear, and heat generation.
- Oil Lubrication Systems: Oil lubrication systems use oil to lubricate the moving parts of the rotary index table. They can be either splash - lubricated or pressure - lubricated. Splash - lubricated systems rely on the rotation of the table to splash oil onto the moving parts, while pressure - lubricated systems use a pump to deliver oil to the critical components under pressure.
- Grease Lubrication Systems: Grease lubrication systems use grease to lubricate the bearings and other components. Grease has the advantage of providing long - lasting lubrication and sealing properties. It is often used in applications where the environment is dirty or where frequent oil changes are not practical.
6. Safety Accessories
Safety is of utmost importance in any manufacturing environment. There are several safety accessories available for rotary index tables to protect operators and prevent accidents.
- Guard Rails: Guard rails are used to enclose the rotary index table and prevent operators from accidentally coming into contact with the moving parts. They are typically made of metal or plastic and can be easily installed around the table.
- Emergency Stop Buttons: Emergency stop buttons are located within easy reach of the operator. In case of an emergency, the operator can press the button to immediately stop the operation of the rotary index table.
- Safety Interlocks: Safety interlocks are devices that prevent the rotary index table from operating unless certain safety conditions are met. For example, a safety interlock may prevent the table from rotating if the guard rail is open.
7. Tooling and Fixturing Accessories
Tooling and fixturing accessories are used to hold and position tools and workpieces on the rotary index table.
- Tool Holders: Tool holders are used to hold cutting tools such as drills, end mills, and taps. They come in different types and sizes to accommodate various tool geometries. Tool holders ensure the proper alignment and secure holding of the tools during the machining process.
- Fixture Plates: Fixture plates are used to mount fixtures and workpieces on the rotary index table. They provide a flat and stable surface for the fixtures to be attached. Fixture plates often have a grid of holes or slots for easy mounting and adjustment of the fixtures.
In addition to the above - mentioned accessories, our company also offers Multiple Stations Cam Indexer For Oscillating Handler, which is a highly specialized product suitable for complex oscillating handling applications.
If you are looking to enhance the performance and functionality of your rotary index table, or if you are in the process of selecting a new rotary index table and its accessories, we are here to help. Our team of experts can provide you with professional advice and customized solutions based on your specific requirements. Contact us today to start a procurement discussion and find the best accessories for your rotary index table.
References
- "Machinery's Handbook" - A comprehensive reference book on mechanical engineering and manufacturing technology.
- "Automation and Robotics in Manufacturing" - A textbook that covers various aspects of automation in the manufacturing industry, including rotary index tables and their accessories.