Milling machine rotary table hv series

Types of HV series rotary tables

HV rotary tables in a milling machine are helpful for precise angular cuts and increases ease of use when faced some of the more complicated and time-consuming exercises and cuts when dealing with materials such as metals and wood. Some of the more popular HV rotary tables include the HV-8 and HV-12 pivot tables.

• HV-8: The HV-8 rotary table has a 7.87-inch (200mm) diameter and is the smaller of the HV tables one could get. It has a T-Slot of 10-5-2 slots, which gives one enough to work with. The table also has a dividing head attachment that enables the user to divide circles quickly and accurately, which is great when looking to make consistent patterns on the material one is working on. The manual hand crank allows one to have manual control over the speed and direction of the table, thus increasing the overall precision when working on a piece.
• HV-12: The HV-12 rotary table is quite similar to the HV-8 but slightly bigger. It has a 12.6-inch (320mm) table diameter. Almost all the specs are the same, with the exception of the size. It is great for horizontal and vertical machining centers.
• HV-16: The HV-16 rotary table has a more extended feature set. It comes with worm gear operation in both horizontal and vertical positions, making it very versatile when working with different kinds of materials. It also has a dividing head feature, as is common with most rotary tables. However, one now also gets the added advantage of the worm drive, which provides a more significant reduction in speed and increased torque. It is also more accurate than most of the rotary tables and has a backlash adjustment feature, which allows for a finer adjustment on the table so that one can get to where the desired mark is with utmost precision.

Specification and maintenance of milling machine rotary table hv series

• Specification:

  Heavy-duty rotary tables are popular among machining centers and vertical and horizontal milling machines. The capacity for machining workpieces ranges from diameter 400 mm to diameter 1250 mm. Worm gears with a slip torque capacity of 1550 Nm to 4600 Nm or higher are typically made of G20Cr alloy steel with an HRC value above 40, which ensures they are wear-resistant. Worm gear shafts have a thrust axial load-bearing capacity sufficient to support heavy workpiece weights and inertia when turning. Worm gear ratios generally used are 1:40 or 1:80; however, other ratios can be customized. They can be manually operated or equipped with a servo motor for automatic operation. Servo motors with dynamic torque capacities of 20 Nm to 35 Nm or more are commonly used. The servo motor speed can range from 20 to 120 RPM, allowing for precise positioning of workpieces within 0.1 degrees. Some heavy-duty rotary tables also come with a tilt function, which allows workpieces to be machined at an angle.

• Maintenance:

  For the long-term and optimal performance of a heavy-duty rotary table, regular maintenance is necessary. It is vital to clean the table and its surrounding area regularly. Any metal chips or cutting fluid should be removed from the work table and T-slots to prevent corrosion and rust. Lubrication is important to prolong the lifespan and prevent wear and tear of the rotary table. Lubricating grease should be applied to the worm gear and worm gear shaft regularly. The frequency and amount of grease should refer to the operating manual. Pay close attention to the condition of the bearings. If any unusual noise is produced, or if the table is not rotating smoothly, check the bearings immediately. They should be cleaned and lubricated, and any signs of damage or wear should be inspected carefully, and the bearings should be replaced if necessary. The rotary table should be calibrated periodically to ensure the accuracy of its rotation. If the worm gear or worm gear shaft is loose or damaged, correcting their alignment and tightening or adjusting the repairing them is necessary. Constantly inspect the table for signs of rust or corrosion. These should be removed immediately, and rust-proof or anti-corrosion coating should be applied for protection. The table should be stored in a dry and clean environment away from humidity and exposure to direct sunlight or high temperatures whenever possible. If the table has to be transported, ensure that it is secured and protected from any physical damage or shock.

Scenarios

• Machining Complex Parts:

  The rotary table is used on milling machines to make machined parts that are difficult to do with just straight cuts, which is the most common type of cut and is usually done by a saw. For example, it can help make the notched and circular holes or grooves that are usually found in cylinder heads, flywheels, gear plates, and other round things. Without this table, people would have to do all the work by hand, which would take longer and make the part less strong and more likely to break.

• Drilling Arrays and Shells:

  Another use for a rotary table is to drill spaces and shells, like for a shell that goes around a big drum. The rotary table helps drill lots of holes that are evenly spread out, which means a consistent and predictable pattern. Because of this, the finished job is better, and the holes will all be the same size.

• Increasing Efficiency:

  A rotary milling machine table helps because it speeds up how fast things are made by cutting down on the time needed between cuts. For example, normally, after each cut, the part that is being worked on needs to be moved and set up again. But with a rotary table, it might be able to do a whole bunch of cuts without having to be moved or adjusted, which means less time wasted, more work done in a day, and more making of parts that are all the same.

• SImplified Routine Work:

  Things like making notches, grooves, or holes with a set pattern can be done easier with a rotary table, like the HV 12 model, and also more precisely. These types of cuts often have the same distance between cuts and depth, so the rotary table makes it simpler and more accurate to do them. Because of this, there will be a larger and more varied selection of parts that can be made, and the parts will all fit better together.

• Milling Keyways and Slots:

  A rotary table is also useful for making keyways and slots, such as blind or through keyways, which are the grooves in parts of machines, especially drives and gears. Usually, the driving parts of a machine have a key and keyway fit, which is how they connect together. The key is a small piece of metal that fits into a groove or slot (the keyway) to help transmit power between two parts that are moving. The slots can also be T-slots or straight slots. When using a rotary table, all the slots will be the same size and in the same place, which helps to make it work better and fit together.

How to choose milling machine rotary tables

When looking to purchase an hv rotary table or hv series rotary tables for resale, buyers should consider the following.

• Quality materials

  A durable rotary table is often built with significant cast iron or other rotationally symmetrical materials. Cast iron is known for its capacity to minimize vibration during machining processes. This feature is of great importance, as excessive vibration can produce imprecise cuts and negatively affect the quality of the workpiece. Additionally, high-quality aluminum alloys are lightweight and corrosion-resistant options for rotary table construction. To guarantee a product's lifespan, buyers should choose rotary tables with solid and dependable construction materials.

• Variety of Uses

  Depending on the business, customers may use the milling machine rotary table for various purposes. As a result, they should look for machines with distinct axis capabilities and features that meet their company's needs.

• Compatible with different types of milling machines

  It is crucial to ensure that the rotary milling machine table matches various types of milling machines, such as universal and vertical milling machines. Buyers should purchase tables that work with more milling machines to provide more consumers a choice.

• Precision and Accuracy

  When considering a supplier, buyers should think about tables with gears and dividing head mechanisms that enable precise rotation and positioning. Such mechanisms ensure the accuracy and precision of workpieces, resulting in satisfying customers' needs. Moreover, buyers should choose milling tables with high repeatability and resolution, which allows for consistent and reliable results every time.

FAQ

Q1: How does a rotary table work in milling machines?

A1: The rotary table assists the cutting of work pieces at different angles and often rotates at set increments to help create circular and cylindrical shapes. A rotary table is a work table with the ability to rotate on the vertical axis. It is often mounted on a columnar drill or horizontal milling machine. The rotary table is used to facilitate the machining of circular and triangular slots of a given radius and to make gear teeth and notches, among other circular or strip operations.

Q2: What does a rotary milling machine table do?

A2: A rotary milling machine table is used to facilitate the machining of circular and triangular slots of a given radius and to make gear teeth and notches, among other circular or strip operations.

Q3: What are the advantages of a rotary milling machine table?

A3: The rotary milling machine tables allow work pieces c to be machined accurately and precisely at different angles without the need to reposition the workpiece manually. This improves the overall accuracy and quality of the machining process.

Q4: What are the different types of rotary tables for milling machines?

A4: The different tables include manual rotary tables, index rotary tables, CNC rotary tables, and dual-drive rotary tables, to mention but a few.