making a rotary table factory

I was once thinking 2 standard transmission flywheels would make a fixture that you are needing. the bottom fly wheel would be surface side down with no ring gear for a bolt down flange. The top flywheel would be face up with a seriese of tapped hole for hold down capabilitys. Im still pondering on the bearing between the 2. The ring gear on the upper flywheel can be mated with a crank handle to provide rotation.

For a corner fillet weld such as those, it may help if you grind off half of each corner on the slotted plates giving a 45 deg V. This will help to ensure the weld gets good penetration and strength at the same time as allowing you to retain the original edges for alignment.

Looks to me like you are using a 240V single phase welder. In Oz I would use a Satin craft 13 electrode as these have a slower flux than a Satin craft 12. This helps stop the flux from running into the weld pool and stopping the arc. My welder has only 2 settings 2.5 and 3.2 mm so I try and use the shortest possible cable between the power point and the welder. If I have to go longer a heavier duty cable helps keep up the volts and amps.

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rotary filing—that is, running a circular cutter withfile-like teeth in the headstock of alathe.Rotary filling and later,true milling were developed to reduce time and effort

Drill holes and bolt-hole patterns, mill intersecting slots and curved slots precisely. Includes worm drive hand wheel with Vernier ring for 4-degree table movement per turn, three T-slot ways for easily mounting a chuck, and two table clamp handles for stability. Main body mounts horizontally and vertically. You will need the table, tailstock, and chuck to complete your rotary table. The 6” table is a complete pack including the dividing plates and the tailstock. The 8” table takes 1/2” T-slot nuts (35-110) and has an MT3 bore. The 6" table uses 10 mm t-slot nuts and has an MT2 bore.

Many rotary table manufacturers outsource gear fabrication to lower costs. While that strategy may offer short term cost savings, Index Design’s American made rotary tables are built with gears cut in house. This is the only way to closely monitor and control tolerances, consistency and performance.

Our rotary tables incorporate large diameter high tensile bronze worm gears mated against hardened steel drive shafts. The combination of metal gives superior wear properties for long lasting operation. As the rotary table is run, the properties of a tin bronze gear develops a low friction deposit on the mating steel drive shaft. These deposits fill in microscopic pores of the mating surface. Over time, as these deposits are embedded on the surface, wear decreases followed by a reduction in frictional forces within the gear assembly.

Final inspection and verification of specification performance is done with precision calibration equipment capable of measure tolerances of +/- 1 arc second in any position. Any deviations from specified angular positions are corrected so our customers can be assured that they are receiving the performance we guarantee.

In addition, the data gathered from our automated calibration procedure allow our engineers to assess, monitor and improve the static and dynamic performance of prototype rotary tables during the design phase.

Our engineers have a long and rich history in the machine tool business, they combine decades of both CNC machine tool and rotary table manufacturing experience with the latest design tools to produce rotary tables with superior performance and dependability.

Our CAD/CAM software is used to analyze displacement and stress for each component, sub-assembly and total assembly. However, the best software and technology is worth next to nothing if no one understands the craftsmanship. This is particularly true when manufacturing precision rotary tables which involves many steps. Despite all the modernization and automation available, a large part of the manufacturing process is still completed by hand. At Index Designs, we understand and appreciate craftsmanship, It is designed and built into our products.

is a specialist in the design and manufacture of a wide range of CNC rotary tables and index tables. At TANSHING we are dedicated to research and development and technological innovation continually.

From design, and precision machining, to rigorous quality control, great care is taken to ensure an international quality level. TANSHING"s products are widely recognized in both domestic and overseas markets. The innovative dual lead worm drive system has been patented in Taiwan which is indisputable proof of the superior R&D capability of TANSHING. TANSHING has been certified by AQSR ISO-9001 (U.S.A.). In order to ensure very high precision parts, TANSHING has invested heavily in various advanced machining equipment. 90% of our in-house parts machining allows us to fully control the accuracy of the parts, which provides a solid foundation for the superior quality of TANSHING CNC rotary tables and index tables.

TANSHING has always dedicated itself to pursuing higher levels of technology. It is always looking to the future, to new challenges, and to new levels of high technology.

Fully Factory Rebuilt, Factory Refurbished Rotary Tables, to as new factory specifications: Horizontal, Weight approx 2100kg, Loading capacity approx 18,000kg/39,600lbs, .  Refurbished October 2017 by Rusach International.  Fanuc Alpha 30 motor, Heidenhain ROD800C +/-3.5 Arc Second encoder, Siemens hydraulic pump.  Table Top is set up for a pallet receiver.  Need it modified, please let us know!

CNC rotary tables play a vital role in the performance of multi-axis machining centres. As table accuracy and reliability are of paramount concern throughout the product"s lifetime, Matsumoto Machine Corporation (MMK) has taken a pragmatic two-pronged approach to reducing indexing errors and improving performance. By enhancing both product calibration and encoder technologies the company has set new standards for rotary table accuracy.

Founded in Japan in 1948, Matsumoto Machine Corporation is a technology-leading provider of innovative, high quality jaw chucks and numerically controlled rotary tables used by industrial machine tool makers throughout the world. A key feature of MMK"s CNC rotary tables is a patented worm and wheel gear assembly developed by OTT GmbH, Germany. Unlike double lead worm gears, the OTT worm and wheel gear is able to minimise backlash, ensuring outstanding accuracy and long life, efficiency and durability.

Shaped in order to maximise gear surface contact area, thereby reducing adverse surface pressure effects, the OTT worm gear teeth are split into separate right and left parts (shank worm and hollow worm) connected by a span ring. This unique structure enables backlash adjustment simply by reducing the distance between the two parts. This design also ensures that only one side of a worm gear tooth is in contact with the wheel gear, leaving a clearance on the other side. As a result, the 2-piece split gear design will not seize up, even with zero backlash.

A further advantageous characteristic of the MMK CNC rotary table is a large diameter through-hole in the table spindle. This greatly increases machine versatility and rigidity, supporting a wider variety of chucks and jigs and the machining of longer workpieces.

By enabling most metal-machining operations to be undertaken on a single machine, the benefits of MMK CNC rotary table are far-reaching. These include the time and cost saving of single machine set-up and single fixturing setup, reduced parts handling and the elimination of tolerance errors as workpieces pass from machine to machine.

Of critical importance in this one-hit machining centre scenario is ensuring the high accuracy of CNC rotary table indexing and control throughout its working lifetime.

As with any form of precision equipment that is integrated into a machining centre by a third party machine tool maker, and which in turn is used by an end user in any number of industrial sectors, assuring consistent accuracy and performance over time presents a challenge.

As with a machine tool"s linear XYZ axes, the rotary axis is just as susceptible to uncontrollable events that may introduce angular positioning or axis alignment errors. Risking the production of defects in finished parts, these errors can be due to a number of reasons including, mistakes made in the initial machine installation, impact damage caused by collision or general wear-and-tear in use.

With its global reputation for product quality and design innovation, MMK therefore sought to equip its CNC rotary tables with a highly accurate and reliable means of tracking and controlling the indexing of its product throughout its lifetime, irrespective of the type of machine tool, workpiece complexity and duty cycle.

At the same time, in an increasingly competitive global market for CNC rotary tables, MMK also wanted to further enhance its product quality inspection processes. Specifically, the company set itself the task of augmenting index angle measurement as a key component of pre-shipment quality assurance procedures.

To provide machine tool makers and users with the ability to accurately track and control CNC rotary table indexing, MMK elected to integrate Renishaw"s super-compact TONiC™ non-contact optical incremental encoder system. Simple to install and with a compact readhead measuring just 35 mm x 13.5 mm x 10 mm, the TONiC encoder presented MMK with a minimal footprint solution capable of supporting machine speeds up to 10 m/s and resolutions down to 1 nm.

The rotary table readhead was designed to be used in conjunction with Renishaw"s RESM, a one-piece stainless steel ring marked on its periphery with 20 µm pitch graduations and featuring the IN-TRAC™ optical reference mark. With its low profile, large internal diameter and wide choice of diameters from 52 mm to 550 mm, the high stability RESM ring provided MMK with a versatile and easy to integrate scale that is well-suited to the company"s wide range of CNC rotary tables.

For improved reliability and higher immunity to any scale degradation over time, the TONiC readhead incorporates third generation filtering optics, tuned for low noise (jitter) and further enhanced by dynamic signal processing. The outcome is an ultra-low sub-divisional error of typically ±30 nm. The TONiC encoder is compatible with industry standard controllers and features a detachable analogue or digital interface inside a robust D-type connector, which can be located up to 10 m from the readhead.

MMK selected Renishaw"s compact and lightweight XR20-W rotary axis calibrator to verify the accuracy of its rotary tables during manufacturing and immediately prior to shipment. The XR20-W was used in conjunction with Renishaw"s XL-80 laser interferometer to provide a non-contact reference measurement, independent of the axis under test, with an accuracy of ±1 arc second.

Motorised by a servo-controlled drive and with data capture synchronised to axis movement, the XR20-W requires no operator intervention during measurement. Being lithium battery powered and Bluetooth enabled, it ensures quick and easy setup, and the avoidance of trailing cable hazards. The calibrator"s modular design and flexible mounting systems allow far easier setup than alternative solutions and can be readily configured for a wide variety of rotary tables, chucks and spindles.

By integrating Renishaw"s TONiC non-contact optical encoder system into its CNC rotary tables, MMK has further assured the accuracy and reliability of its products in the field, along with an overall superior motion control performance. For a wide range of different machine tools and end uses, the rotary tables" combination of compact readhead and one-piece stainless steel ring scale has delivered a higher level of tolerance to dust, scratches, grease and oil, and a reduction in indexing errors. The encoder system"s ability to output highly stable position signals of unrivalled purity and ultra-low sub-divisional error have provided smoother velocity control, improved scanning performance and increased positional stability.

MMK"s introduction of Renishaw"s XR20-W rotary axis calibrator and XL-80 laser interferometer has reduced product measurement times by a half compared to conventional autocollimator techniques. Measurement procedures have been simplified and automated. Capable of taking accurate measurements at any indexing angle pitch, the calibrator enables evaluation of the accuracy of the worm and wheel gear-driven table for ultra-fine pitch measurement movements as small as 0.001°. This has allowed any loss of motion control or worm and wheel gear efficiency to be evaluated in detail and addressed. Product performance is now backed by a thorough analysis meeting ISO quality standards.

CNC rotary tables play a vital role in the performance of multi-axis machining centres. As table accuracy and reliability are of paramount concern throughout the product’s lifetime, Matsumoto Machine Company has taken a pragmatic

two-pronged approach to reducing indexing errors and improving performance. By enhancing both product calibration and encoder technologies the company has set new standards for rotary table accuracy.

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Eppinger, a toolholder manufacturer, is entering a new market by presenting a range of rotary tables. The company made its first display at EMO Hannover earlier this year. The new rotary tables are available with rotary plate sizes ranging from 160 to 320 mm and are suitable for both initial installation and retrofitting of vertical and horizontal milling machines.

“We have used more than 30 rotary tables of different brands at our production sites for many years,” says managing director Uwe Eppinger. “That’s why we are well aware of the pros and cons of installation, flexible application, maintenance costs and decreasing accuracy.”

Although the existing market is already highly competitive, Eppinger company is venturing into this segment now. “Our rotary tables differ significantly from existing solutions,” says Mr. Eppinger. “They have been used for some time in our own manufacturing, where they gradually replaced the third-party products.”

“We were not always satisfied with the products that previously existed on the market,” he continues. “The reason is that for our own production of tools, wheel gears and gear units, we need rotary tables that can be quickly and precisely positioned, tables which are extremely compact and suitable for fine grinding as well as for rough milling operations. In addition, they should be easily integrated into existing vertical and horizontal machining centers and used there in a flexible way. Since we could not find suitable rotary tables on the market for our specific requirements in this specific combination, we developed them ourselves.”

A distinguishing feature of Eppinger’s rotary tables is the pre-loaded, backlash-free twin-engine drive which is said to enable quick indexing without clamping. An integrated angle sensor on the rotary plate keeps positioning accuracy high, even with changing loads, the company says. Although this principle is already used for larger rotary tables, Eppinger says it found a way to implement it in rotary tables with plate sizes under 320 mm in diameter. Although the angle measuring system integrated into the housing measures the angle directly on the rotary plate and compensates for mechanical interferences, the pre-loaded drive makes it possible to set up a high control loop gain, the company explains. Only in this way is it possible to bring bidirectional positioning into the angular seconds range of precision.

These vise jaws use protruding, mechanical pins to repeatedly support workpieces either horizontally or at angles. They are said to allow quicker setups than conventional parallels.

Holding metal parts with magnets is migrating from surface grinding to broader application in general metalworking processes, especially milling. Advances in magnetic technology are causing many shops to re-evaluate how they hang on to workpieces. Here’s a look at how magnets may be a viable workholding solution for your shop.