What does a rotary table do?

What does a rotary table do?

A rotary table is a precision work positioning device used in metalworking. It enables the operator to drill or cut work at exact intervals around a fixed (usually horizontal or vertical) axis.

How accurate are rotary tables?

The angle is determined in 960 equally separated positions over 360 degree. One rotation is recorded both clockwise (cw) and counterclockwise (ccw). The table offers an accuracy of 2 13 arc seconds with a backlash of about 10 arc seconds.

How many degrees can a rotary table turn rotary?

Advancing the crank using the outer ring rotates the table 1/28 of 1/72 of a rotation (0.1786 degrees). Advancing the crank using the inner ring rotates the table 1/15 of 1/72 of a rotation (0.3333 degrees).

What is the difference between a dividing head and a rotary table?

The main difference between the two is that a rotary table lets you rotate the work so radial or axial cuts can be made but a dividing head is just moved in increments.

What are the two types of rotary tables?

Mounting styles for rotary tables can be horizontal, vertical, or inverted. With horizontal mounting, the table surface is in a flat, upright, horizontal position. With vertical mounting, rotary tables are mounted so the rotary table surface runs up and down.

How do I choose a rotary table?

There are multiple factors to consider when choosing a rotary table, such as the make and model of the machining center, size, and weight of the part, and most importantly the goal of the end user.

How do you measure a rotary table?

The measurement method is to turn the table to an angle, both forward and reverse, then stop, lock and position, and it uses this position as a reference with rapid rotation in the same direction, locks positioning and measurement every 30 seconds.

Who invented the rotary table?

2 Hydraulic Rotary Table. A 1930 patent application by inventor James C. Fortune describes a hydraulic feed mechanism that is run inside of and attached to a rotary table on a drilling rig.

How do you make a small rotary table?

What is master bushing?

A device that fits into the rotary table to accommodate the slips and drive the kelly bushing so that the rotating motion of the rotary table can be transmitted to the kelly.

What are the three types of dividing heads?

Indexing is accomplished by using a special attachment known as dividing head or indexing head. Dividing heads are of three types: Plain or simple dividing head, Universal dividing head, and Optical dividing head.

Where are vertex rotary tables made?

Vertex rotary tables, Made in Taiwan, available in 5 sizes. They are accurate & smooth, producing your workpiece to exacting tolerance.

How do you make a homemade dividing head?

What is CNC rotary table?

CNC Rotary Table is a precision work positioning device used in CNC machining centers to precisely position the component in the desired angle to do the multi-face operation in a single setup.

How do you make a rotary welding table?

What is a Kelly on a drill rig?

1. n. [Drilling] A long square or hexagonal steel bar with a hole drilled through the middle for a fluid path. The kelly is used to transmit rotary motion from the rotary table or kelly bushing to the drillstring, while allowing the drillstring to be lowered or raised during rotation.