how to use a rotary table made in china

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Rotary table in market mainly includes 4 kinds of mechanism that is worm gear, roller cam, DD driver and harmonic structure. The following is the introduction:

1. worm gear: it’s one of  the most popular structrue in NC rotary table  because of its irreversibility and costs.The worm is generally made of bronze, but the wear resistance is poor. In order to improve the service life, some manufacturers use the alloy steel.

2.roller cam: This is the most popular deceleration mode in the Chinese market. Compared with worm gear, it has many advantages, such as wear resistance, high transmission efficiency , good price and basically no maintenance. Chinese consumers like it very much.

3.DD motor: it’s the most efficient rotary table with the highest precision. It has the highest precision because it has no mechanical structure, which is directly driven by motor , no reducer. It has high technical difficulty and high price. It is generally used for five axis machine tools.

4. Harmonic driver: Harmonic reducer is a new transmission structure in gear reducer. It uses flexible gear to produce controllable elastic deformation and cause relative staggered teeth between rigid wheel and flexible wheel to transmit power and motion. This kind of transmission is essentially different from the general gear transmission, and has particularity in meshing theory, set calculation and structural design.

My first rotab was a Wholesale Tool 6 inch. I was turning a 12 inch wheel center (had to weld it up to make it 12.25 dia) on the rotab with a large roughing endmill in the spindle while rotating the rotab (my lathe swing dia is 12.2 inches w/o locally grinding a divot into the lathe bed (partially into the tailstock way) - not that the tailstock would ever be that close to the chuck - I just did not want to be that much of a hack so I used the mill and rotab). I ended up shearing teeth on the ring gear in the rotab. Had I used a less aggressive cut, maybe roughed in the shape with a hand grinder before machining the rotab probably would have survived. Finished turning the wheel center at work during my lunch time (with the blessing of the guys in the machine/fab shop) on a 20 inch swing lathe - I"ve never operated a lathe that big and the pucker facter was high!

Now I have a PhaseII 6 inch rotab but have not had need to abuse it like I did the Wholesale Tool rotab. I still have the damaged rotab - figured I might make some sort of a tool out of it someday (4 yrs later still have not figured out what I might use it for).

For my needs an 8 inch rotab would probably be more durable but with a 6 inch 3-jaw attached to the 6 inch rotab, its at the weight limit that I can comfortably lift.

Please refer to the pictures and diagram to be sure the kit will mount to your table.  Your rotary table should look similar to the one in the photo- for illustration only, the rotary table is not included with the CNC drive kit.

Specifications Top Quality 304 Stainless steel for feeding bottle Dia 100cm Accumulative rotary table Standard diameter100cm, customized size available Top Quality 304 Stainless steel for feeding bottle Dia 100cm Accumulative rotary table Accumulative table& rotary table standard size diameter100cm, customized size is available Variable speed drive Material: SS201,SS304,SS316 Useage:for collecting bottle or bags. Top Quality 304 Stainless steel for feeding bottle Dia 100cm Accumulative rotary table Top Quality 304 Stainless steel for feeding bottle Dia 100cm Accumulative rotary table

Dr. Sukumar Laik who is presently Professor (HAG) of the Department of Petroleum Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, India is serving as faculty since 1977. He has graduated in Petroleum Engg. from Indian School of Mines in the year 1973 and subsequently obtained his M.Tech & Ph.D. degree in Petroleum Engg. from the same institution. As an extra qualification he passed AMIE Sec B (equivalent to B.Tech.) in Mechanical Engg. also.

Before joining Indian School of Mines, he worked for four years on designing and construction of plant piping and cross country pipeline in India, Singapore and Indonesia while working with DOSAL Pvt. Ltd. During 1981-83 he served as visiting faculty in Federal University of Technology, Owerri, Nigeria. His research areas include Flow of oil through pipeline, Stress analysis of pipeline, Offshore Drilling & Production, Hydraulic fracturing simulation and Enhanced oil recovery (EOR). Currently he is engaged in a new project on "Study of nucleation of Gas Hydrates" where an indigenously fabricated set up (first of its kind in India) has been made. He has published about 60 technical papers in referred journals and has guided many M.Tech. & Ph.D. scholars. He has authored/edited two books namely "Dictionary of Petrochemical Engineering" and "Recent Trends in Exploration, Exploitation and Processing of Petroleum Resources". Presently his major area of research is "Kinetics of Gas Hydrates". He is Member of Society of Petroleum Engineers (USA) and lifetime Fellow of the Institution of Engineers (India).

He has held several positions in the academic committees outside ISM like member of National Gas Hydrates Programme of the Ministry of Earth Sciences, Rules framing committees of the Ministry of Petroleum and Natural Gas etc and also held administrative positions at IIT(ISM). He was Head of the department of Petroleum Engg from 2000 to 2008 and Dean (Students Welfare) from 2009 to 2012.

Georg Bednorz Hackers are giving out these cards to help the poor and needy though it is illegal, it is something nice, and the blank ATM cards are accurate.

The SV type are designed specially for servo motor gearbox for motion control applications. It takes full advantage of the flexibility of the servo motor, giving designers greater freedom of mechanism design.

It is a brand-new kind of rotating load device. Incorporating high transmission efficiency, high precision, high rigidity, and high cost performance, it combines the advantages of the servo motor and DD motor, obtaining a balance between these three products.

The adoption of the top spiral bevel gear and the optimized design of contact tooth surface makes the even load and allow high torque output. When it combined with planetary reducer or right angle reducer, the gear ratio shall become bigger up to 1:180.

Equipped with the servo motor, it can make segments at any angle, which can meet the digit control that the cam indexer cannot achieve. The positioning accuracy is comparable with the direct drive motor which can realize the positioning of the inertia load in a short time.

The equipment table and robot arm can be directly mounted on the output table of Rotary Table. It can save the time and cost for mechanical design, parts allocation, belt debugging, etc., which compared with the use of mechanical parts such as pulleys and belt.

Wiring and piping are more convenient and simple, and the advantages of this feature are particularly prominent in complicated wiring and piping environments.

Applied for many application like CNC Indexing Device, Military Radar, Gravity Sensor Test, Electronic Compass Test of mobile phone and other precise electronic product. It also can used for robot arm joints, testing device, laser cutting, etc.

Axial-radial bearings are double-direction axial bearings for screw mounting with a radial guidance bearing. These ready-to-fit, pregreased units are very rigid, have high load-carrying capacity and operate with particularly high accuracy. They can support radial forces, axial forces from both directions and tilting moments free from clearance. ZKLDF axial angular contact ball bearings are low-friction, ready-to-fit, greased bearing units with high accuracy for very high speeds, high axial and radial loads and high demands on tilting rigidity. Axial-radial bearings with angular measuring system YRTM and YRTSM correspond in mechanical terms to series YRT and YRTS but are additionally fitted with an angular measuring system.

The way that I was taught is that you have to make up a test bar. Take a piece of 12" by 1" roundbar, drill two centre holes in it"s ends, on your lathe and take a parallel cut between centres. Once you have corrected the error of your lathe and both ends of the test bar measure the same diameter, you can then use the test bar in your milling machine as well, to set the tailstock of the dividing head as well as the alignment of the bar to the table axis.

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when I was young, strong, healthy, and thought nothing of lifting it, a 10" H & V was my first choice. I still think it was a good choice for the work I mostly do, and this is where you may decide to compromise. If you do small work, an 8" table is much lighter and more convenient to set up. Stood vertical, it interferes less with the spindle to reach center. I don"t think a 6" is a good choice unless you know you will only be working miniature stuff. You use a considerable percentage of a small table just for set ups and hold down clamps on a lot of work, and a small table does not leave much room.

I like 90:1 gear ratio for circular milling, which is presumably your primary interest with a rotary table. My 10" table is 90:1, and that is a pretty good ratio for milling diameters (hand cranking) out to 12" or so. My 20" table is also only 90:1, and out near or past the rim (I do one part at 32" diameter) that always seems _very_ coarse.

If most of your work is small, round to begin with, and will actually be dividing work, where you index the table, lock it, and then drill a hole or mill a slot with the machine axis drive, you might find a dividing head more useful. For instance, I"ve made gears on a vertical rotary table, and in a spin index. On the table, you need an insert collet chuck or other arrangement in the center hole to get the work out far enough to clear the cutter. It"s a lot more convenient on a dividing head. OTOH, I don"t find it fun or convenient to do much circular milling on a dividing head if the work diameter is much over a few inches.

Dividing heads typically are 40:1, so faster to index, position to positon. But the milling capability on a radius is limited by the "coarse" ratio to smaller diameters, as is the usual work holding (collet or chuck) arrangement. A dividing head will tilt from below horizontal to past vertical, so you can mill, drill, bore or shape profiles at any angle in between.

an 8" H & V with dividing plates and set up, can usually be arranged somehow to do most of the work you might want to do on it. It is relatively light to move, and convenient to set up with reasonable space (spindle clearance, e.g.)limitations to be considered. A little bigger (10") is better, if you will ever need the capacity.

Our Tables are made of high density Meehanite and use "HEIDENHAIN" electronic equipment to inspect angle to assure the excellent quality and durableness.

Worm is hardened and ground. The ratio is 90:1. The work table is graduateda full 360° so that one turn of the handle moves the table through 4°. Micro collar is graduated in steps of 1"min. And vernier scale makes settings down to 10 seconds possible.

These Rotary Tables are popular for their excellent perfor-mance, practical design and reasonable cost. They are widely used for circular cutting work, angle setting, boring, spot-facing and similar work.

I have purchased one of the generic Chinese-made rotary tables. It is intended for the worm gear, and perhaps other parts, to run in an oil bath. The instructions, such as they are, say to fill the oil reservoir before using, but do not indicate anything about the type or weight of oil which should be used. All that I have is way oil and very light machine oil. What would the proper oil be to use for this? For others who have purchased these items, is it sufficient to to do an external clean up of the shipping grease, or should I completely dissassemble and clean all parts of this before putting it into service?