rotary table automation in stock

Cam Indexer Technology is Sankyo Automation’s specialty. We’re continuously working to develop new, innovative technologies in motion control. Our collection of high-speed, high-precision rotary indexing solutions are frequently utilized in manufacturing systems that require accurate, high speed actions.

Rotary Indexers & Servo Positioning Turntables for Robotic Work Cells Gate- CDS designs and manufactures precise work positioning systems for robotic welding cells and other advanced systems in automated manufacturing. These robust rotary positioning tables are utilized in robot work cells where around the clock 24/7 performance and reliability are a must. Gate- CDS indexing tables & servo turntables are designed to meet the heavy duty, high production demands of robotic welding work cells. We offer a wide range of different model sizes of Cylindrical Cam Driven or Servo Controlled Rotary positioners ranging in capacity from 200 pounds to 20,000+ pounds. The typical number of positional stations for a Cylindrical Cam Driven indexer include 2, 3, 4, 5, or 6 positions, with other numbers of stations also available as standard. Whereas our Servo Controlled Rotary Tables provide flexible positioning for any number of stations.

6.1. North America Automated Rotary and Indexing Table Market Size (US$ Mn) and Volume (Million Units) Analysis & Forecast, by Configuration, 2017‒2031

G.P.A. Italiana mechanical rotary indexing table series TA is a square axis unit which, thanks to a cam carrying several bearings fixed to the index, transforms the uniform rotation of the inlet shaft in an intermittent rotation of the output disk. The number of standard indexings ranges from 2 up to 32. From 32 up to 540 indexings on request.

Rotary indexing table use is widespread in automated assembly machinery and selecting the proper mechanism is essential for both maximizing performance and minimizing the cost of this critical component. This how-to-guide will explore two common devices that can be used for rotary indexing and give advice for proper selection. These two popular devices are cam indexing drives and servo rotary tables.

Cam indexers are a ubiquitous mechanism that have been used for rotary tables for many decades. They are a great fit for applications that will always index the same angle and that require high-precision positioning at a very reasonable cost. A cam indexer uses a mechanical cam to provide the motion control to position the load. A mathematical motion curve is machined onto the cam that provides extremely smooth and repeatable motion.

A cam indexer has two main modes of operation. One mode is referred to as “Cycle-on-Demand”. This indicates that the camshaft will be cycled one revolution at a time to advance the output one position at a time. This is typically achieved by using an inexpensive camshaft sensor package to detect camshaft position and a VFD to stop and start the motor. The camshaft dwell period offers a wide window for the camshaft to stop without affecting the position of the output. To cycle the indexer, a PLC gives a command to the VFD to accelerate the drive motor to a preset speed, the cam rotates one revolution indexing the output, a sensor sends an in-position signal to the PLC, and the PLC signals the VFD to stop the camshaft during the cam dwell position. The table will be in the dwell position for however long is necessary to complete the work at each station. The dwell time can range from a fraction of a second to several minutes or hours depending on the application. This combination allows very accurate positioning with an inexpensive drive system.

A fully programmable servo rotary table is another common option. There are two specific cases where a servo rotary table is advantageous. The first is when a flexible motion pattern is required. An example is two different products being run on one machine that each require different indexing patterns. The other situation that suits a servo indexer is when extremely fast positioning is required followed by a long dwell period. A cycle-on-demand cam indexer is limited by the need to accelerate the camshaft up to speed during the dwell period before output motion is started. There are practical limitations to how fast the camshaft can be accelerated so there will be a delay before motion is started. With a servo rotary table, the output rotates as soon as the servomotor starts moving. A practical example would be a load being indexed 90 degrees in 0.25 seconds. This is not difficult for a continuous cam indexer or a zero-backlash servo indexer, but a cycle-on-demand cam indexer may struggle with that motion. For quick servo indexing applications, a preloaded gear reducer with zero-backlash is critical to achieving smooth indexing motions with minimal settling time. A zero-backlash RollerDrive mechanism would be an optimal choice to achieve accurate positioning with great dynamic response.

For either style of indexer, application information including moment of inertia, indexing angle, indexing time, and dwell time is required. A reputable manufacture should then be able to properly size the rotary table for the application.

Rotary Work Tables were designed to accept product flow from discharging belt or other general material handling systems. The rotary table or some times called spinning table is a robust design, which is engineered to take demanding punishment from an industrial environment. The rotary table is the key component in designing a flexible work cell for jobs requiring manual inspection, degating, assembly or packing. In typical applications, the product is conveyed on to a the table to allow multiple operators can efficiently handle tasks or allows multiple products (sub-assemblies) to be conveyed from multiple machines to one location and have one operator handle multiple tasks without added effort or ergonomic strain.

Indexing tables are used in a multitude of industries and in numerous applications. Their design is optimal for many manufacturing jobs, and they are a critical component in most automated manufacturing systems. Indexing tables are best defined as a machine tool positioning device. They carry components in a manufacturing environment with a repeating process of indexing (rotating) around an axis, stopping, dwelling while an operation is performed, then indexing again to repeat the process. They are usually made of circular steel plates, with one or more spindles, a drive system, encoders, sensors, controllers and slots or mounting holes to hold components.

Virtually any manufacturing operation can be performed on a part held by an indexing table including welding, grinding, drilling, assembly, painting, inspection, testing and more. In order to maximize operational efficiency, the machine doing the operation must also be built for the same intended application as the indexing table for them to work in synch. Similarly the machine that loads the indexing table with parts must also be synchronized. They must have the same capacity and be able to manage to the same dwell time for the system to work.

Industries that use indexing tables include automotive manufacturers, bottling companies, microchip manufacturers, pharmaceutical makers, consumer products companies and many more. They are invaluable to manufacturers pushing for automation and increased efficiency in their factories, turning work that used to take days into work that takes only hours. If a simple assembly task is required on small parts in a factory, there is no better way to complete the task than by coupling an assembly tool and an indexing table.

Rotary assembly machines, also known as rotary tables or indexing systems, incorporate location tooling for the parts that is captive to a dial plate and individual stations that incorporate technology modules such as part feeding, robots, vision measurement to automatically carry out sequential operations. The advantages of using an indexing or continuous motion dial plate with a series of fixtures are the relatively low cost and rapid indexing of the transport system. Fully automatic systems can reach throughputs of 400 a minute or more when continuous motion is used.

The use of a rotary assembly and test machine is advantageous when the cycle time is greater than 5 seconds and an operator is best used for some of the assembly processes.

For a fully automatic system, part feeding and handling can be integrated or for semi-automatic operation an operator can be used to position difficult to feed parts into the fixtures or used as a final inspection operation, or both. Rotary or carousel type assembly machines also offer a compact form of semi automatic machine.

The business cases that are addressed by installing a rotary system into your production facility are that operations can be carried out fully automatically with the system producing complete products so there is no work in progress (WIP) produced during normal running. There is the flexibility of changing the tooling to accommodate new variants.

A rotary assembly system can replace some or all manual labour allowing production running costs to be reduced. Additional benefits include that the operations can be quality assured and checked automatically. This being pertinent to many production environments including the pharmaceutical and medical sectors, the automotive sectors and aerospace and defence industries.

Automated Expert rotary tables & index drives help expedite line production with  products for more constant motor rotation in fabrication or assembly processes. EXPERT® (formerly EXPERT-TÜNKERS) is recognised as a world leader in production efficiency with highly dynamic drives for rotating, lifting and traversing operations.

A long trusted Romheld Automation provider of line production essentials, EXPERT is an excellent supply partner for index drives, rotary tables, trunnion drives, conveyors, lifting axes, shuttle systems and complete transport solutions. If you’re looking for Expert-Tunkers products, we can get them.

As a rule, the rotary tables are driven by a factory installed shaft-mounted gear motor. The indexing time is defined by the gear ratio. The rotary table can be delivered without drive and directly integrated into machinery drive chains.

EXPERT globoidal rotary tablesare used for packaging machines, assembling machines, textile machinery, automated handling systems, conveying systems, welding machines, machinery for glass-making and fabrication processes in which extremely short cycle times are required due to high output.

For over 50 years, Pfiffner has been developing rotary transfer machines that offer high precision and flexibility, marketing the most cost-effective solutions for high-volume workpieces. Thanks to our solution-oriented approach, well-developed expertise in the market, and a passionate innovative spirit, we"ve established ourselves as a leading partner for innovative industry sectors all around the world. Our success is based on a clear vision: We always remain a leap ahead of the times, ensuring satisfied customers every single day.