how to use a rotary table on a milling machine price

Years ago, before I learned CNC, I owned a Phase II 8″ horizontal/vertical rotary table that I purchased from Kap Pullen’s Getmachinetools.com store. He has them at a good price, BTW, and he’s a darned nice fellow to deal with as well as being a frequent HSM contributor. Anyway, its a nice little table, but I hadn’t done a whole lot with it for quite a while after purchasing it. As is so often the case, one day, a project landed on my doorstep and I was glad to have it.

Before I could get started, however, I had to make some accessories for it. Basically, I needed some T-Nuts to fit the table, as well as a little fixture that makes it easy to hold a plate up off the table through a hole in the center so you can machine it. The latter, what I call a “plate machining fixture”, was inspired by something similar I saw the Widgitmaster of CNCZone fame using to make Dremel clamps for his mini-router:

The Plate Maching Fixture and 3 Homemade T-Nuts. T-Nuts are easy to make: square a block to the proper dimensions, mill the side reliefs, drill, and tap. These are much smaller than the mill’s Bridgeport standard T-slots, so I made them myself and I’m using 1/4-20 bolts with them. They’re made of mild steel.

I turned the round spigot using the 4-jaw on the lathe. I’m making the fixture out of MIC-6 aluminum plate, which is pre-ground very flat on the sides. This is a 5 inch by 3 inch piece. I’ve clamped it to the rotab using my T-nuts and the regular mill clamps and step blocks. It is sitting on parallels to make sure I don’t cut into the table. You can also see how I’ve clamped the rotary table to the mill table using a big cast iron V-block I have. You can never have to many blocks with precision faces hanging around!

Having a 4-jaw chuck on your rotary table is mighty handy! Because it’s a 4-jaw, you can dial in the workpiece by adjusting the jaws until it is perfectly concentric with the table’s axis of rotation. The best way is to make an adapter plate that attaches to the back of the chuck in the same way that your lathe does so you can exchange lathe tooling with the rotab. Here is an example:

For the example, the chuck is threaded onto the adaptor plate, and then the holes in the adapter plate’s flange are used to bolt down to T-nuts on the table.

In my case, I bought a 4-jaw from Shars brand new, and simply drilled some through-holes in the chuck to mount to the table directly without an adapter plate:

First, you want to make sure your part is properly centered on the table. To do that, I clamp the table down on the mill table (no special place is needed), put my Indicol indicator holder on the mill spindle, and find some round feature on the part to indicate on. For example, on the plate milling fixture above, indicate on the round boss, or on the center hole. Spin the table and bump the part in until spinning the table doesn’t move the indicator.

Second, locate the center of rotation directly under the mill spindle. You can simply use the X and Y table handwheels to do this. Use that Indicol to indicate off of a circular feature you want centered under the spindle. Turn the indicol around on the spindle and adjust the handwheels until the indicator stays put relative to the spindle position. A Blake Coaxial indicator will make this last even simpler.

When you’re rounding partially by cranking a part around on the rotary table, it’s really easy to go a little too far and screw things up. The answer is to drill the end points to make the exact stopping point on the rotab a lot less sensitive:

Centering with a Blake indicator is really fast, but what if you don’t have a Blake, or worse, what if your mill is too small to accomodate one? Here is a nice solution I found on a German site. This fellow has made an ER collect fixture for his rotary table, and has taken care that when installed on the table, the axis of the collet is aligned with the table’s axis. He can then place a dowel or other straight pin in the collet and line up until it will go into a similarly sized collet on the spindle. Nice trick! It’s similar to how Widgitmaster showed me to align a drill chuck on a QCTP to the lathe centerline with a dowel pin held in the lathe chuck.

Whether you use mills, presses or lathes, machine tools are often only as useful as the accessories that come with them. Take care of repair tasks and add extra functionality with the machine tools accessories at Alibaba.com. If you need new milling machine rotary table or are seeking to replenish your component stocks, our wholesale store is the ideal place to look. We stock accessories for every type of machine tool, with multiple options in most cases. So add resilience to your operations and be ready for any production challenge with the machine tools accessories in our store.

Machine tools come in all shapes and sizes, and so do the accessories that make them tick. For instance, CNC and manual lathes can be customized with jaw chucks, shanks, woodworking knives, drill chucks, rotary chucks, clamps, and turning tools. Add brushes and sanding discs, and turn your machine tool into a multi-purpose machining center. Add a range of cutting tools to milling machines, pick the right drum sanders for your drills, or add a lathe dog to make turning much easier. There are accessories for hydraulic presses, add-ons like drag chains, and many other machine tools accessories. And if you need replacement milling machine rotary table, Alibaba has everything you need.

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The mill rotary table is one of the main accessories of milling machine. As a precision work positioning device, it is widely used for indexing drilling, milling, circumferential cutting, boring, etc. The rotary turn table for milling machine is made from casting with high quality, can work with a set of dividing plate.

Both vertical and horizontal with two functions. Circle cutting, indexing drilling, milling and more complicated work are possible when the vertical position of the table is used together with the tail part.

Three dividing plate set(Plate "A" - 15, 16, 17, 18, 19, 20 Plate "B" - 21, 23, 27, 29, 31, 33 Plate "C" - 37, 39, 41, 43, 47, 49). A set of wrench and screws are free for you with your installation.

It works well. Functionally, it’s pretty great.It comes with some extras, but not much of an explanation. Because it can mount parallel or perpendicular, it lacks a way to clamp it to the table for parallel use. I had to machine a toe clamp to hold the other end. Thankfully, I have a mill. But, it’d have been so much easier to include one since it’s necessary.Otherwise, the 90 turns for 360 (1 for 4), works out pretty well for any angle divisible by four - 72, 60, 120, etc. I had to machine a way to attach my lathe chuck. Spent a half hour making the little piece I pictured… worked well for not using the dividing plates.Solid. Fairly precise. Works. But you’re going to have to make things to use it.

... conventional machines. Axis movement is performed by high quality servomotors, increasing accuracy and efficiency. Simple handling and reliability make this model very popular.

... approximation of the motorized table, automatic advance of the rod, square guides on Y / Z axes, tilt front / rear of 45 ° and centralized lubrication as standard.

... stainless steel structure, these machines feature multi-station rotary tables for optimized processing time, and automatically manage the unwinding and winding of the cloths; the moving ...

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This is an accurate designed table for milling, boring and other machine tools. This table allows indexing, facing and other work to be carried out rapidly with extreme precision. Tiliting range 0-90 degrees fromread more...

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Adding a 4th axis rotary table to a milling machine provides several advantages to your job shop. Having another axis to work with gives milling machine users more precision and accuracy without having to change part positions.

Also, an additional axis would prove to make any milling machine more diverse in the work it is capable of doing. Lathe machines introduce the aspect of a rotating part, so a rotary table would add the same benefits provided. A 4th axis rotary table, in general, can provide more precision and ease to a complex design, reducing time and costs for the production of a certain piece.

A 4th axis rotary table serves to add a rotating axis to the desired piece being shaped. Similar to a lathe’s rotating head-stock, the rotary table holds the piece and moves it at exact intervals of revolutions.

Because it can move in precise degrees of motion, machinists can easily calculate correct positions, just as they do with the other three axes of motion on the machine. Once all 4 axes are used, making grooves or holes in the piece is much easier than without the rotary table. This saves time by discarding the task of removing and resetting the piece in another position. Having the ability to move the piece in determined intervals and precision in multiple axes is important for more complex machine work.

Just like with the other three axes of motion, the 4th axis can be adjusted for specific amounts of distances to accurately tell what position you are at in relation to the dimensions of the piece.

Also, the scales used to measure its motion can save time and resources by reducing the amount of mistakes that could result in major delays. A 4th axis rotary table can be integrated into a milling machine’s control in order to set the positions needed. This makes accurately machining multiple pieces faster and easier to accomplish.

With a full 4th axis, your milling machine can handle a much more diverse set of jobs. For example, machining parts with holes in which mill must work with a circular pattern with equal distances is certainly possible with 360 degree movements. Arc cuts, grooves, and other complex curves are included with the benefits of a 4th axis rotary table. Cutting out the teeth of gear parts is another possible application.

A 4th axis rotary table extends the degree of motion necessary for complex work needed by any skilled machinist. With quality material, a machinist can create intricate parts and expand the types of orders your job shop can take on.

CNC Indexing & Feeding Technologies offers a wide selection of 4th axis TJR rotary tables. Contact us today to learn about our high quality CNC accessories.