hirschmann rotary table made in china

Our product range includes single and multiple axes, tilt/rotating tables, and indexing and high-speed spindles. Additionally, we offer customized solution tables for customer requests or OEM projects.

Even for EDM machines that have been in use for decades, we will work with you to determine the ideal rotary indexing table and/or rotating/indexing spindle solution.

Our state-of-the-art rotary indexing tables and customizable reference and clamping systems provide endless application possibilities and highly efficient solutions.

Project oriented research and development, in-house testing on our own benches and a high level of vertical integration are all available from Carl Hirschmann out of one source.

Sample Applications Sinking EDM • Undercuts • Tooth systems • Perforations Wire EDM • Curved shapes • Spirals Uniaxial rotary indexing tables Multi-axial rotary indexing tables Rotary indexing tables with hollow axle Rotating and indexing spindles Customized special solutions If requested, all rotary indexing tables can be equipped with a precise clamping system. Common characteristics • Complex shapes • Completely sealed (IP68) for use in dielectric fluid • Maintenance-free, patented EDM power transmission for wire EDM • Maintenance-free AC drive • Applicable on any EDM, laser oder HSC...

Rotary Indexing Table Goes Digital - for digital control during manufacturing process Functions: • Measuring and reporting of temperature and humidity inside the axis. • Readable using an app via Bluetooth on tablet or smartphone. • Data is transmitted, can be read out, evaluated and corresponding statistics on minimum-maximum-average-standard deviations can be generated • Values can also be read directly from LED display on the rotary table without any technical devices • Configuration of limit values for monitoring with visual and acoustic alarm function Advantages: • Increase of humidity...

Uni-axial Rotary Indexing Tables At Carl Hirschmann all parts are homemade with high technical know-how and are assembled professionally to complete units consisting of rotary indexing table, palletizing and clamping system. With uniaxial rotary tables a vertical and horizontal machining with best positioning accuracy, concentricity and axial run-out accuracy is possible. If requested uniaxial rotary indexing tables can be delivered also with SK or HSK tapers. Two-axial Rotary Indexing Tables Our two-axial rotary indexing tables stand for highest precision, accuracy and continuity. The...

Hollow Axes With our precise uniaxial and two-axial rotary indexing tables with hollow axle the workpiece can be machined up to its center. Wire EDM is possible also for small workpieces. Customized solutions Due to our high manufacturing depth it is guaranteed to our customers that all components are made and not only assembled by Carl Hirschmann. We are pleased to meet individual customer requirements. Please contact us directly to find the perfect product for your demand. Carl Hirschmann - System provider with more than 4 0 years of experience For more than 40 years Carl Hirschmann...

HEILBRONN KARLSRUHE A81 A8 STUTTGART Carl Hirschmann GmbH Kirchentannenstraße 9 78737 Fluorn-Winzeln Germany Carl Hirschmann, Hirschmann, Inc. Inc. 165 East Commerce Drive Ste 104 Ste 104 Schaumburg, IL 60173 Schaumburg, IL 60173, USA USA Carl Hirschmann Hirschmann Room C528, Block 180, South Chang Jiang Road Bao Shan District, Shanghai P. R. CHINA 200433 T +86 139 16 13 58 45 E info@carlhirschmann.com.cn E info@carlhirschmann.cn

A prime example of this is the rotary tilt/turn hollow-access device from Hirschmann and marketed by Methods Machine Tools (Sudbury, Massachusetts) for its line of FANUC EDM units such as the RoboCut C600iA. This special tilt/turn table is available in different sizes. The model shown at IMTS and described here is the model JS FJRTH186RF-P-01.

“Rotary tilt/turn hollow-access” is a mouthful, but it is, in fact, a good way to characterize this device, which attaches to the tooling frame within the tank of the wire machine. It has two servo drives that are interfaced to the CNC. In operation, the unit enables the wire to cut complex openings that may have different paths at the top and bottom of the opening. The result is a “hollow” within a workpiece that may have a variably tapered and/or convoluted shape.

This complex hollowing is possible because the unit simultaneously rotates and tilts the workpiece. Unlike a tilting rotary table which typically rests on the surface of the worktable of a machining center, this unit is mounted from the sides and features a through-hole in which the workpiece is clamped. This arrangement enables the underside to remain open to the tank of the wire machine. In essence, the through-hole securely suspends the workpiece so that the travel of the wire is virtually unimpeded above and below for maximum access. The through-hole on this model is 5.86 inches (149 mm) in diameter and can handle a workpiece as heavy as 220 pounds (100 kg).

The three views of a sample workpiece on this page show the complexity of hollow openings that can be produced with this hollow-access device. This workpiece is 2.5 inches in diameter and 2.5 inches tall. Cutting such openings in this manner has advantages. This kind of tilt/turn table enables these complex contours to be machined while keeping the wire vertical. This means higher-tensile-strength wire can be used to obtain higher accuracy. Using higher-tensile-strength wire also makes wire threading more reliable for more efficient production runs. Because the upper and lower heads are always aligned, flushing with the dielectric water is improved, which results in faster cutting speeds and better surface finishes.

The RoboCut’s FANUC 31iWB control unit has the processing speed and power for the multi-axis simultaneous control required to coordinate the added rotary and tilting axes in the hollow access unit. The nano interpolation capability of the CNC complements the ±5 arcseconds indexing accuracy of the hollow-access unit’s rotary and tilt servodrives. In addition, the highly reliable wire-threading system and precise wire-tension control of the RoboCut 600iA support cutting of complex hollow openings in workpieces made of demanding materials for medical or aerospace.

Mr. Straessle is pL Lehmann product manager at Exsys Tool. He says that while five-axis machines have become more affordable, they still can be two to three times the cost of a three-axis VMC, depending on the model. Therein lies one advantage to rotary tables, which, when installed on the bed of a three-axis VMC, combine a rotational C axis and a tilting A axis to enable the machine to perform either five-axis positioning work (aka 3+2 machining) or full five-axis contouring. Three-axis VMCs outfitted with two-axis rotary tables are commonly smaller than five-axis machines, too, saving valuable floor space. Unfortunately, they also tend to have tighter work envelopes, meaning a sizeable rotary table will be more restrictive of a machine’s movements.

A compact rotary table preserves work envelope space, providing more room for spindle and tool movement. Plus, shops have the option to use just the rotary table, mount standard vises next to it or remove the rotary table altogether, which is made simpler when the rotary table has a zero-point-type locating system to eliminate the need for alignment when it is removed and then remounted.

That said, Mr. Straessle says compact rotary tables still must possess design elements that enable them to perform effectively for a range of work. Here, he details four such features inherent to the pL Lehmann 500 series of modular-designed rotary tables, available in North America through Exsys Tool.

1. Load capacity. The compact 500 series provides load capacities that, in the past, were only available with larger rotary tables. For instance, the 3-inch rotary tables in this series are generally half the size of comparable units, but can handle workpiece loads as heavy as 400 pounds, he says.

2. Speed and torque.Rotary tables commonly use either direct-drive or gear-driven technologies, the former able to achieve high rotational speeds and the latter offering high torque. The 500 series uses the company’s pre-loaded gear drive (PGD) design, which is said to offer the best of both worlds in terms of high speed and high torque while being as much as four times as rigid as direct-drive systems. Plus, it enables the rotary tables to generate rotational speeds as fast as 160 rpm with virtually zero backlash.

3. Spindle clamping power.Once a rotary table is oriented to the desired position, an effective spindle clamping system is needed to securely hold that position during machining operations. Some rotary tables use an external intensifier or some other type of standalone hydraulic unit combined with disc braking to achieve necessary clamping forces. Conversely, the 500 series features an integral unit that converts air pressure into hydraulic holding power, using a

4. Monitoring system.The 500 series features a self-contained, internal monitoring system used to track and record vital rotary table information, including temperature, rotational speed and clamping force. It also detects internal pressure decay.

In addition, the rotary tables have USB ports to enable users to download monitoring data to log the operational history of the table. Not only does this data highlight crashes or malfunctions, but it also facilitates more effective preventive maintenance by offering early warnings to possible issues so users can avoid unplanned downtime. Plus, the monitoring system activates a series of LED warning lights when it recognizes a potential problem. For example, a blinking orange light is an alert to a situation that can be addressed before it becomes serious, while a continuous red light means immediate attention is needed. Because these rotary tables integrate with all the common machine tool CNCs, users can have warnings displayed on the control screens, too. By connecting a laptop running software such as pL Lehmann’s TeamViewer, users can also solicit assistance via the Internet from a company technician who can log on to assist in troubleshooting.

Mr. Straessle says the company guarantees the spindles on its standard rotary tables to achieve runout of 5 microns and its high-accuracy models to achieve runout of less than 3 microns (the latter is commonly used in grinding applications). In addition, glass scales provide ±1-arcsecond positioning capability for the C axis. These rotary tables are also sealed to prevent internal contamination that could hinder performance and feature a motor housing internally pressurized with oil to achieve an IP67 rating.

Anyway, to answer your questions, I looked up the Hirschmann table you referenced and it looks to me like it"s a spinner and indexer, not a turn while burn table.

Hirschmann must have a similar provision to integrate their turn while burn capable tables to whatever machines they are going to be run on...I don"t think you can just buy one and bolt it to a machine without the interface kit to mate it to the control.

Turn while burn requires that the controller governs the rotary motion; this is because the rate of rotation has to be driven by the spark gap conditions in conjunction with the axis motion of the rest of the machine whether it"s X or Y or U or V.

It was faked by tilting the wire to an angle other than the thread helix angle with the U axis, then driving a fine pitch helix with B and X (B is the rotary axis on my machine).

You can imagine just how many passes that would take (a LOT), and you will always have a 0.005" radius at the junction of each flank and the root, which may or may not be acceptable depending on the application.

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.

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.