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Turning – An Automation Module of the Tünkers Group
Turning and Positioning
Id.-Nr. 419511 · 4/2015
STANDARD ROTARY TABLES
Rotary tables with a system design re-duced to the mechanical basic ele-ments. The transmission of the rotarymovement from the geared motor to therotary table is ascertained by a gearedring or toothed belt. The construction-ally simple and therefore economicallypriced systems are precision drives, ad-ditionally equipped with a positioningpin.
Example rotary table TXE with pinion/geared ringdrive
COMPACT ROTARY TABLES
Key characteristics of the compact ro-tary tables are small dimensions andhigh precision. Typical fields of applica-tion are areas such as conveying tech-nology, medical technology, packagingindustry and therefore installations inwhich high-speed movements with pre-cision are a decisive feature.
Cyclical Turning
Turning is a standard process in automation lines. To be precise, thisinvolves stepwise turning and positioning in installations. In a typicalapplication, rotary indexing tables move work pieces into a robot cellby a 180° movement. The positioning of circularly arranged work sequences into the production cell is another example of the use of
rotary tables. Requirements for rotary tables are high accelerationand braking processes as well as precise positioning in the work positions in the dwell period.The product ranges of Expert-Tünkers and SOPAP include standardrotary tables with performance data of max. 150.000 Nm with
dimensions of max. Ø 10 m. All systems are designed for highest process reliability and thereforesuitable for use in high-volume machines.Taking into consideration design and size, we distinguish betweenthe following systems:
CAM-DRIVEN ROTARY TABLES
Rotary indexing tables, where the torque ofthe geared motor is transmitted via a barrelcam and track rollers to the rotary table.Depending on the drive system, a distinc-tion is made between rotary tables withfixed and flexible indexing.
Rotary tables with fixed indexingPrecision index drives for rotary move-ments transposing the motion profile withacceleration, braking and the required ro-tation angle scale over a form-closed barrelcam. Conventional three-phase motors with con-stant revolution speed are used.These rotary tables are suitable for horizon-tal and vertical operation, for instance, inthe form of trunnion drives.
High-precision fit in workingposition due to barrel cam profile principleThe table plate of rotary tables with fixedindexing is driven by two bolts. In the neu-tral position, they are moved to a broad-ened cam profil, thus ensuring a nearlybacklash free locked work position.
SMARTTURN: Encoder instead of mechanicalswitch mechanismThe new generation of rotary tables is op-tionally supplied with an inductive encoderand the autonomous control SmartTurn re-placing the complex mechanical switchmechanisms and taking control of thetable.Advantages:– Auto-adaptive system– Extremely simple commissioning by exe-cuting the first motion cycle
– readjustment not required– Integrated monitoring of the braking pathand thus wear and tear of the brakes withalarm signal „Reline“ and emergencyshut-down
Flexible Rotary TablesDrive module for implementing flexiblemovement tasks by using freely program-mable servo gear motors. The sequence ofmotions is determined by the motion profileof the servo gear motor. For this reason,output angle and acceleration can be freelyselected and specifically adapted to eachload case. Based on their flexible application, the rotary tables of this design are particularlysuitable for drive tasks, where the sequence of motions is to be adapted tothe production process, e.g. due to newloads, a new position/end positions or directions of travel. A typical example is theproduction of different vehicles in a produc-tion line requiring flexible retooling in thepace of production.
Heavy-duty Ring Tables Rotary tables in accordance with the camprinciple, are carried out in ring design dueto their dimensions and diameters of morethan 2 m. This results in the advantage ofvery flat basic constructions. The large centre diameter can be used either toarrange fixtures or positioning of handlingequipment s.a. robots.
Rotary table
Supporting roller
Barrel cam
INDEX DRIVE
.
MANUAL ROTARY TABLE
Rotary disc in robust bearing serving asmounting for a device to be manuallyrotated. Optional scope of delivery withmanual shot pin, braking elements to beactuated via a foot switch and limit po-sition switch.
Compact Rotary Table CubeApplication example index drive in conveyingtechnology
The core element of a turning intermittentdrive is an index drive. In addition to com-plete rotary drives, Expert-Tünkers andSOPAP also provide this index drive as acomponent to be integrated by the clientinto plant systems.
Parallel-index DriveTransformation of the stepping motion viadisc cams, engaging into an output starequipped with yoke-type track rollers. Parallel arrangement of input and outputshaft. In the stop position, the dwell period,a backlash-free and form-closed outputpositioning is ensured.
Globoidal Index DriveRealization of the stepping motion via acam roll, engaging into the yoke-type trackrollers of the output star. Vertical arrange-ment of input and output shaft. Nearlybacklash-free mechanism, due to eccentricshaft bearing of the cam roll. The globoidalindex drives are also available as rotarytable with table plate.
Drive shaft
Yoke type trackroller
Output starwheel
Drive shaft
Cam Disc
Functional Principle Parallel Operating Drive
Input star wheel Cam roll
Functional PrincipleParallel OperatingDrive
Construction principle cam-driven rotary table
CAM-DRIVEN ROTARY TABLECam-driven rotary table with fixed indexing
EDX-series– Higher Torque due to multi-bolt princi-ple with more compact dimensions
– Positioning via cam with low-backlashresting angle
– Use as table and trunnion drive
Turning and Positioning Turning – An Automation Module of the Tünkers Group
Type Ø Disc Height Max. Torque in (mm) in (mm) in (Nm)
EDX 610 360 250 540EDX 700 450 310 1100EDX 810 560 360 2800EDX 960 710 450 5000EDX 1170 920 550 9000EDX 1390 1120 620 15000EDX 1600 1350 720 20000
Cam-driven Rotary Table, FlexibleEDH-Series– Flexible Standard Rotary Table– Indexing and positioning via control– Higher torque due to multi-bolt princi-ple with more compact dimensions
– Use as table and trunnion drive
Heavy-duty Ring TablesEDH-Series– Flexible servo rotary table in ring de-sign with cam diameters up to Ø 3 m
– Large central space also forrotation/robot position
– Robust cam technology for high loadcycles
Type Ø Disc Height Max. Torque in (mm) in (mm) in (Nm)
EDH 610 360 250 900EDH 700 450 240 1500EDH 810 560 280 4000EDH 960 710 310 8000EDH 1170 920 360 15000EDH 1370 1120 420 25000EDH 1600 1350 480 40000
Type Outer Ø Inner Ø Height Max. Torque Disc (A) (l) in (mm) in (mm) in (Nm)in (mm)
EDH 2250 1800 900 480 60000EDH 2550 2300 1300 450 127000EDH 3250 3000 2000 600 145000
COMPACT ROTARY TABLESRotary Table Cube
C-Series– Drive integrated in housing for opti-mum and nearly square mounting vo-lume
– lower installation height– inductive sensing cartridge for endposition sensing
– 25% higher torque due to optimizedgear ratio
Globoidal Rotary Table EGD-Series– Backlash-free index drive for positio-ning tasks with hardened and groundgloboidal cams and cam rollers.
– Quality bearing with high load ratingsfor precise synchronous operation
Compact Rotary TableTS-Series– Precision rotary table in compact design
– Fixed indexing with dwell period 45°, 60°, 90°, 180°
– Pre-loaded precision crossed rollerbearings for high loads and precisesynchronous operation
– Housing in aluminum design
Type Ø Disc Height Max. Torque in (mm) in (mm) in (Nm)
C 100 120 150 27C 300 215 341 197C 500 320 465 1000
Type Ø Disc Height Max. Torque in (mm) in (mm) in (Nm)
EGD80 80 126 65EGD100 100 150 150EGD125 125 190 400EGD160 160 190 800EGD200 200 290 1500EGD250 250 355 2800
Type Ø Disc Height Max. Torque in (mm) in (mm) in (Nm)
TS 200 200 135 47TS 300 300 191 197TS 400 400 190 300
STANDARD ROTARY TABLESSimplex Rotary Table
TXR-Series– Rotary ring table with toothedbelt drive
– extremely flat design– option: precision shot pin
Simplex Trunnion Drive TXT-Series– Servo rotary table for trunnion drive– robust crossed roller bearing – Drive with servo gear motor and pi-nion/geared ring
– simple, robust design– option: precision shot pin
Simplex Rotary Table TXE/TXI-Series– Servo rotary table reduced tothe essential
– robust crossed roller bearing – Drive with servo gear motor andpinion / geared ring
– simple, robust design– low height– option: precision shot pin
Type Ø Torque Height Max. Torque in (mm) in (mm) in (Nm)
TXR 400 400 < 200 500TXR 750 750 < 200 1000TXR 1100 1100 < 200 3000
Type Ø Torque Height Max. Torque in (mm) in (mm) in (Nm)
TXT 400 400 500 830TXT 750 750 700 1690TXT 1100 1100 800 3250
Type Ø Disc Height Max. Torque in (mm) in (mm) in (Nm)
TXE/TXI 400 400 500 830TXE/TXI 750 750 700 1690TXE/TXI 1100 1100 800 3250
INDEX DRIVE MANUAL ROTARY TABLEParallel Index Drive
PA-Series– Parallel Index Drive– parallel arrangement of drive and out-put
– backlash-free in the locked area– Use e.g. in indexing conveyor belts,systems with oscillating movements
EDM-Series– Rotary disc in robust bearing, servingas mounting for a device to be manually rotated.
Option:– manual shot pin – braking elements to be actuated via afoot switch
– limit position switch
Globoidal Index Drive EG-Series– Index drive with vertical arrangementof input and output shaft
– backlash-free mechanism due to eccentric shaft bearing of the cam roller
– Application: oscillating movementswith highest precision requirements
Type Max. permissibleMax. permissible Height Max. Torque axial load radial load in (mm) in (Nm)Input shaft Input shaftABE (daN) RBE (daN)
65 16 65 130 11380 37 140 190 218105 55 200 200 450130 80 250 250 912165 250 728 320 1635200 420 1190 390 2562250 650 1940 490 4438315 950 3270 620 9254
Type True running Lateral running Staticon Ø k without on Ø k without input
load load torque(mm) (mm) mf1 (daNm)
50 0,02 0,02 0,563 0,02 0,02 0,880 0,02 0,02 1,5100 0,02 0,02 2,2125 0,02 0,02 3160 0,02 0,02 4200 0,02 0,02 5250 0,02 0,02 6,5
Type Ø Disc Height Customer Loadin (mm) in (mm) in (kg)
EDM 850 450 850 1000
