Rotary table 4

Types of rotary table four

A rotary table 4 is an equipment used to create 90° angular increments. They are commonly used on CNC machines. There are different rotary tables, including the following:

• Standard rotary tables: They are similar to the trigonometry functions that exhibit periodic circular movements. CNC machines utilize them regularly. Standard rotary tables have fixed gears that enable the machines to exert pressure from a specific angle or torque to cut an imprecise circle. Standard rotary tables owners must turn the handwheels to enable the part to be cut to a certain degree.
• Precision CNC rotary tables: A precision CNC rotary table is automatic and can easily be hooked up to a computer. Therefore, an operator does not physically turn the part being cut. Instead, the CNC machine with a motor drives it to make the cut with precision from the command of the computer. The gearing on precision CNC tables can achieve up to 10-second accuracy or even less, thereby making it suitable for high-precision jobs. A CNC rotary table might also have a 360° continuous rotation and use a worm gear to provide a smoother rotation.
• Dividing head rotary tables: They have a similar function as rotary tables. However, dividing head rotary tables are more accurate and are regularly used on high-end CNC machines such as milling ones. Usually, dividing heads have fixed gear ratios of 1 to 40, meaning the operator has to turn the handle 40 times to achieve a single rotation of the table.
• Nonsynchronous rotary tables: Their axes can spin freely without being locked into a predetermined position or an orbit. For instance, their jaws can open wide to rapidly grasp or release objects. Nonsynchronous tables can operate at varying speeds.

Specifications and maintenance of rotary table 4

Specifications

• Table Diameter/Dimension

  The table diameter of a rotary table can vary, and it ultimately depends on the specific model. Some commonly used rotary tables may have the following dimensions for the table. The diameter/dimension indicates the round table's size. The most commonly used dimensions include a 200mm/7.87-inch diameter, a 300mm/11.81-inch diameter, and a 400mm/15.75-inch diameter.

• Load Capacity

  The load capacity of a rotary table refers to the maximum weight that the table can safely rotate. ld capacities can vary from one type of machine to another. For example, smaller rotary tables can hold between 200-300 kg. On the other hand, larger tables with bigger diameters can hold between 1000-3000 kg or more.

• Degree of Rotation

  The rotary table can only turn to a fixed number of angles, such as 360 degrees or more. This feature depends on the design of the rotary table. Some rotary tables can rotate to any angle and position in precisely 360 degrees, while others may only turn to certain angles.

• Speed of Rotation

  A rotary pedestal's speed at which it turns is known as the rotation speed; it can vary according to the machine and the function being worked on. Some tables may turn as fast as 1200 rpm or more, while others just turn at an average speed of 60 to 300 rpm.

• Precision

  When machining parts and workpieces, achieving precision is critical. Precision pertains to the accuracy and repeatability of the rotary position. Some rotary tables may offer precision up to one second, that is, 1' or better, while others offer lesser precision.

Maintenance tips

• Routine checks:

  Users should always perform routine checks before and after using the rotary table. This maintenance method will ensure that all the bolts on the rotary table are tightened. Also, check for any signs of wear and tear or damage on the parts of the table. Look for any blockages that may have gathered up on the rotary table and remove them immediately.

• Lubrication:

  It is very important to clean up the rotary tables thoroughly and lubricate the moving parts with the appropriate lubricant periodically. Follow the manufacturer's instructions to know precisely what to use and the areas to oil.

• Keep it clean:

  Users should always strive to keep the tables clean after every use. Cleaning the tables will help remove debris, dust, and excess oil from the parts. Routine cleaning will prevent damage from build-up and prolong the rotary table’s lifespan.

• Avoid overload:

  Users can extend the service life of the rotary table by avoiding overloading it beyond the capacity limits indicated by the manufacturer. Rotating tables are built with a certain load capacity, and exceeding the limit can cause damage, reduce precision, and affect functioning.

Scenarios of rotary table 4s

The 4 rotary table provides various industries with many usage scenarios.

• Machining industry

  In the machining industry, a rotary table plays a crucial role. It enables the cutting of workpieces at different angles and improves machining efficiency. During operations like milling, boring, and drilling, the rotary table can position the workpiece precisely. When creating round holes, grooves, or threads, this achieves the desired shapes and dimensions. Additionally, rotary tables are widely used in gear-cutting machines. They assist in accurately machining gears and other circular workpieces, ensuring high precision and quality.

• Mechanical assembly and welding

  An automatic rotary welding machine is helpful for both mechanical assembly and welding. It simplifies assembly operations by providing workpiece rotation and positional adjustment, which enhances work efficiency and assembly accuracy. During welding operations, the rotary table can change workpiece positions and orientations to achieve uniform and high-quality welding. Using the rotary table decreases welding defects and improves product quality.

• Automation and robotics

  In automation and robotics applications, rotary tables are significant. In automated production lines, rotary tables can be used for workpiece transfer and sorting. They accomplish workpiece transfer between different process stations, thus enhancing production efficiency. Additionally, in the realm of robotics, rotary tables can be integrated into robot systems as an executing component for combining with robots to attain manipulative operations. This allows for flexible operations and high automation.

• Entertainment and exhibition

  In the field of entertainment and exhibitions, 4th axis rotary tables are commonly used. They can be used in stage performances to rotate props or actors, achieving magnificent visual effects. Additionally, at various exhibition events, rotary tables can display products. They present products to spectators from different angles and perspectives, thus attracting more attention and facilitating the promotion and sale of products.

How to Choose Rotary Table 4

When buying a rotary table for sale, it is important to purchase those with features buyers look for. Consider these factors when buying:

• Workpiece Size and Weight Capacity

  Find rotary tables with weight capacities that match or exceed expected workpieces. Higher weight capacities ensure stability during machining.

• Rotation Accuracy and Resolution

  The table's precision directly impacts the quality of finished products. Look for models with low roundness error and high positioning accuracy.

• Direct Drive vs. Gear Drive

  A direct drive provides higher accuracy and less backlash, while gear drives offer higher torque. Choose based on the level of machining required.

• Compatibility with Existing Equipment

  A rotary table should work well with currently-existing CNC control systems. This ensures a seamless integration and enables programmability.

• Quality of Construction and Design

  A sturdy built rotary table helps provide durability and functional efficacy. This helps to prevent wear, and damage, and reduce maintenance costs.

• Budget and Long-Term Value

  While initial cost matters, consider the long-term value a rotary table brings. A higher-quality, more expensive model may cost less to maintain.

• Availability of Spare Parts

  Check for the availability of replacement parts like motors or encoders. This helps ensure quick repairs and downtime reduction.

• Table Configuration

  Determine the required rotary table type based on the machining application. Some options include tilt-rotary tables and dual rotary tables.

Rotary table 4 Q &A

Q1: Are there any limitations to the applications of a 4 rotary table?

A1: In the case of DIY projects and small-scale professional jobs, the budget and space constraints might limit an appropriate rotary table. An affordable rotary table with a workpiece capacity of 15 x 15 might suffice for small applications yet not be suitable for large ones. Another limitation might involve the axis ratio. A workpiece with a 2:1 ratio would demand an AAX table with a 2:1 axis ratio, which might not be affordable for a small-scale operation.

Q2: Do all CNC machines require a rotary axis for every job?

A2: CNC machines with a rotary axis can facilitate engraving and create complex cylindrical objects. However, achieving a higher level of precision for smaller non-cylindrical objects may not require a rotary axis. Non-cylindrical objects with a high level of complexity and requiring an object to move in a rapid and precise manner may call for an independent rotary axis to achieve the desired result.

Q3: Does a CNC rotary table work with all laser machines?

A3: CNC rotary tables do not work with all laser machines. Different types and models of laser machines may impose specific requirements for the rotary table's specifications and design.

Q4: What's the difference between a rotary table and a CNC rotary table?

A4: The first type of rotary table is a work-holding device that indexes workpieces to machine circular features. It is primarily used in the manual machining of horizontal and vertical milling machines. The latter type is often used in computer-controlled machining, where its precise movements are central to achieving the high levels of precision typical of CNC work.