Used rotary table

Types of Used rotary table

Used rotary tables are classified into different categories based on various factors like technology, drive system, size and application. Here are the most common types of used rotary tables:

• Based on Drive System

  Mechanical Drive - This type of used rotary table employs a mechanical drive system. It uses gears, levers and pulleys to transfer motion. It is known for its precision and reliability. It is mostly used in applications where accuracy is paramount.

  Servo Drive - Servo-driven used rotary tables are equipped with servo motors. They provide high torque and precise positioning. The servo drives can be controlled digitally, making them suitable for CNC machines.

  Step Drive - These used rotary tables are driven by stepping motors. They offer incremental movement and high accuracy. Step-driven rotary tables are ideal for applications where complex positioning is not required.

• Based on Positioning Control

  Manual Rotary Tables - These are simple used rotary tables that rely on manual operation. They are equipped with hand cranks and locking mechanisms. They are ideal for basic tasks and small workshops.

  CNC Rotary Tables - These tables are integrated with computer numerical control systems. They offer automatic positioning and high repeatability. They are used in advanced machining centers for complex operations.

  Electronic-Controlled Tables - They come with electronic control units. They provide easy programming and multiple-axis control. They are commonly used in modern manufacturing setups.

• Based on the Orientation

  Horizontal Rotary Tables - They are designed to operate in a horizontal position. They are ideal for machining flat and cylindrical workpieces. They are widely used in milling machines and machining centers.

  Vertical Rotary Tables - These tables are oriented vertically. They are used for machining tasks that require vertical positioning. They are also suitable for working on large and heavy components.

  Tilting Rotary Tables - These versatile tables can tilt at different angles. They combine horizontal and vertical functions. They are used for complex machining tasks that require multi-angle positioning.

Features and Functions of Used Rotary Table

Used rotary tables are equipped with a variety of features that enhance precision and efficiency in machining operations. Here are some of their common features alongside their functions:

• Manual or CNC-controlled

  Used rotary tables can either be manual or CNC-controlled. Manual rotary tables are operated by hand while CNC-controlled tables are integrated into computer numerical control systems. The CNC controlled rotary tables offer higher precision and automation levels. Manual rotary tables give more control to the operator and are less expensive.

• Degree Scale

  The degree scale is a graduated circle marked in degrees on the rotary table. It allows operators to set precise angles for each rotation. This feature is vital for applications requiring accurate angular positioning.

• Vise

  A rotary table vise is a tool that secures workpieces on the table. It rotates in a circle for precision cutting at different angles. The vise holds the material firmly in place as the table rotates, ensuring accurate machining.

• Clamping Kit

  This is a set of clamps and bolts used to secure the workpiece on the rotary table. It ensures stability and precision during the machining process. The clamping kit makes it easy to mount and dismount workpieces quickly and efficiently.

• Indexing Plates

  Indexing plates are circles with holes around the edge. They help the operator turn the table exactly to the right angle. The plates make it easy to divide a circle into equal parts. They make sure the workpiece rotates accurately for each cut or drill.

• Backlash Compensation

  Backlash compensation is a feature that reduces the error caused by the movement of the rotary table. It makes sure that the table moves to the exact position without overshooting or lagging. Backlash compensation makes the machining process more accurate and reliable.

• Automatic Tool Change

  This feature enables the CNC rotary table to switch tools automatically as required by the machining program. It reduces the time taken for manual tool changeovers and improves efficiency. Automatic tool change increases the versatility of the rotary table by allowing different machining operations to be done in one setup.

• Power Feed

  Power feeds are motorized drives that move the rotary table. They allow for continuous and consistent rotation at different speeds. The power feeds make it possible to perform automated machining tasks. They increase the efficiency and accuracy of CNC rotary tables.

Scenarios of used rotary table

Used rotary tables are common in manufacturing industries. Different industries use them for various applications, including:

• Metalworking

  Metalworking is one of the primary industries that extensively use rotary tables. They are used in CNC machining centers and milling machines to perform accurate circular cutting, indexing, and drilling. The rotary tables improve the production of metal parts with complex designs, including brackets, gears, and plates.

• Aerospace Engineering

  The aerospace industry relies heavily on precision engineering, and rotary tables are vital for this sector. They are used to manufacture components like turbine blades, wing parts, and aircraft fuselage sections. The rotary tables ensure the parts are produced with high accuracy and tight tolerances for safe and efficient aircraft operation.

• Automotive Industry

  Automakers also use rotary tables in various applications. They are used in the production of engine components, transmission parts, and other critical automotive parts. The rotary tables enable mass production of automotive parts while maintaining high precision and consistency.

• Tool and Die Making

  Industries that manufacture tools and dies use rotary tables to achieve high-precision cutting and shaping of tools and dies. The tables enable the production of complex tool geometries that are required for making various products.

• Medical Device Manufacturing

  Rotary tables are used in the production of medical devices and instruments. They ensure the accurate and consistent manufacturing of critical medical devices, such as surgical instruments, implants, and diagnostic equipment.

• Electronics Industry

  Rotary tables are used in the electronics industry to manufacture printed circuit boards (PCBs) and other electronic components. The tables enable precise drilling and routing of PCB layouts to ensure the efficient and reliable operation of electronic devices.

• Woodworking

  While most rotary tables are used for metalworking, woodworking rotary tables are also available. They are used to perform precise cuts and angles on wooden workpieces. This way, the woodworking rotary tables produce furniture and other wooden structures with high accuracy.

How to choose used rotary table

When choosing a used rotary table for sale, consider the following factors:

• Precision

  Buyers should check the specifications of the used rotary table to determine its accuracy and repeatability. Ideally, the table should have low backlash and high precision. They can look for a used table that comes with a certified accuracy report.

• Condition

  Business owners should thoroughly inspect the condition of the used rotary table. If possible, they should test it to see how it works. They can check the wear levels, operational status, and any visible damages. They should also check the maintenance history of the table to ensure it was properly maintained.

• Compatibility

  Buyers need to ensure that the used rotary table is compatible with their existing CNC machine. They should check the specifications like; sizes, mounting options and interfaces to ensure they are compatible.

• Type of rotary table

  This is an important consideration for buyers because the type of table determines its functionality. As discussed earlier, there are several types of rotary tables. Each type is designed to cater to specific applications. Therefore, buyers should choose the right type depending on their machining requirements.

• Quality and brand reputation

  Business owners should buy a used rotary table from a reputable manufacturer. They can research various manufacturers and read reviews to get insights into the quality and performance of their products. Investing in a quality table guarantees longevity and optimal performance.

• Budget

  Even though used rotary tables are less expensive than new ones, they still come at different prices. Buyers should have a budget that will help them choose a rotary table that is within their price range. Having a budget also helps in making a quick decision.

Used Rotary Table Q & A

Q1: What is a used rotary table?

A1: A used rotary table is a flat circular disc that is mounted on a vertical or horizontal spindle. It's used in milling machines or lathes for rotating workpieces. It allows precise cutting of holes or edges at different angles. A used rotary table is generally more affordable than new models, making it a cost-effective choice for many workshops.

Q2: How to maintain a used rotary table?

A2: Maintenance is crucial to ensure longevity and optimal performance. Regularly clean the surface and remove any debris or chips after use. Apply lubricants to moving parts to minimize friction and ensure smooth operation. It's also important to periodically check for any signs of wear and tear and address any issues promptly.

Q3: Can anyone operate a rotary table?

A3: While it may seem simple, operating a rotary table requires specific skills and knowledge. Proper training is essential to ensure safety and optimal usage. Understanding the various controls, settings, and how to achieve precise angles and rotations is critical.

Q4: What are some common mistakes when using a rotary table?

A4: Some common errors include miscalculating angles, improper securing of workpieces, and not accounting for the table's backlash. These mistakes can lead to inaccurate results and even damage the rotary table or workpieces. Proper training and understanding can mitigate these errors.

Q5: Are there any limitations to using a rotary table?

A5: While rotary tables are versatile, they do have some limitations. They may not be suitable for very large workpieces or extremely intricate designs. The precision of the table can also be affected by the operator's skill level and understanding of the machine.