Industrial Robot SK Series The quiet industrial robot with SynchMotionTM Technology offers quieter operation, smooth movement, low particle emitting rate, longer service life and superior lubrication. With the SynchMotionTM Technology, SK industrial robots will be more suitable for industries which need higher speed and quiet performance. 2.1 Features 0 Lownoise 0 Lowparticle emitting rate 0 Longer service life 0 Superior lubrication 0 Easy installation and maintenance Ball screw Motor housing • Top seal Stoppper CRD Devices Ltd All Saints Industrial Estate, Shildon, Co, Durham, DL4 2RD Tel: +44 (0)1388 778400 Fax: +44 (0)1388 778800 E: [email protected]W: www.crd-devices.co.uk
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Industrial Robot
SK Series
The quiet industrial robot with SynchMotionTM Technology offers quieter operation, smooth movement, low particle emitting rate, longer service life and superior lubrication. With the SynchMotionTM Technology, SK industrial robots will be more suitable for industries which need higher speed and quiet performance.
With Synch Motion TM Technology, rolling elements are interposed between the partitions of SynchMotionTM to provide improved circulation. Due to the elimination of contact between the rolling elements, collision noise and
sound levels are efficiently reduced.
BLOCK
RAIL
2.1.2 Tangent Circulation Technology
Balls enter circulation system by following spiral pathway. It can diminish the impact while balls are entering the
circulation system, improve the speed, acceleration, smoothness of traditional external circulation, and reduce
the noise while balls are entering the circulation system. Through the advantages above, high speed and low noise performance of SK are therefore achieved.
2.1.3 Noise Test
With the application of SynchMotionTM Technology and Tangent Circulation Technology, noise about 3-5 dB during
Sensor SO: Sensor Rail Only S 1 : Omron SX671 S 2: Omron SX674 S 3: SUNX GX-F12A S 4: SUNX GX-F12A -P
None : No Sensor and Rail
C: Cover B: Bellows None: Normal Type
Motor Adaptor Flange ref. catalog [P.24-P.25)
E: Block Special Order None: Normal Type
Number of Blocks: 1 or 2
Block Type: A: Normal
My
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-$- + -$-
------
-$- + -$-
Guideway
Static Rated Moment
Allowable Static Allowable Static Allowable Static Moment M, [N-m) Moment Mv [N-m) Moment M.[N-m)
[pitching) [yawing) [rolling)
Block Block Block Block Block Block Al A2 Al A2 Al A2
168 891 168 891 413 826
168 891 168 891 413 826
565 2481 565 2481 1063 2126
565 2481 565 2481 1063 2126
2.4 Accuracy Grade
Rail Repeatability Model
Length Precision Normal
150
200
±0.003 ±0.01
300
SK60
400
500
±0.003 ±0.01
600
340
440
±0.003 ±0.01
540
SK86
640
740 ±0.01
±0.003
940 ±0.01
Accuracy
Precision Normal
0.020
0.025
0.025
0.030
0.040
2.5 Maximum Speed Limit
Ballscrew Lead Rail Length Model
(mm) (mm)
150
200
300 05
400
500
600 SK60
150
200
300 10
400
500
600
340
440
540 10
640
740
940 SK86
340
440
540 20
640
740
940
Unit: mm
Running Parallelism Starting Torque(N-cm)
Precision Normal Precision Normal
0.010 15 7
0.015 15 7
0.015 15 10
0.020 17 10
0.030 25 10
Speed (mm/sec)
Precision Normal
550 390
550 390
550 390
550 390
550 390
340 340
1100 790
1100 790
1100 790
1100 790
1100 790
670 670
740 520
740 520
740 520
740 520
740 520
610 430
1480 1050
1480 1050
1480 1050
1480 1050
1480 1050
1220 870
2.6 Life Calculations
2.6.1 Service Life Under repeated stress between raceway and rolling elements, pitting and flaking occurs while reaching fatiguefailure. Service life of KK industrial robot is defined as the distance traveled before any failure of raceway androlling elements appears.
2.6.2 Nominal Life (L) The service life varies greatly even when the KK units are manufactured in the same way or operated under thesame conditions. For this reason, nominal life is used as the criteria for predicting the service life of a KK unit.
2.6.3 Nominal Life Calculation of KK Unit The calulating formulas is divided into two parts, including guideway and ball screw which will obtain two differentvalues. The smaller value would be suitable for the nominal life of KK unit. Formulas of guideway and ball screw nominal life depend on several parameters and are shown as follow:
Guideway
J; C 3 L : Life Rating [km)
L = (-- · -- ) X 50 km Ji : Contact Coefficient [ref. Table 1 l fw Pn l,v : Loading Coefficient [ref. Table 2)
Insufficient lubricating of guideway would lead to reduction of service life. The lubricant provide functions including: • Reducing rolling friction and avoiding abrasion• Providing lubricating film and extending service life• Anti-rusting
2.7.1 Lubricating grease
Re-lubricating KK industrial robot every 100 km is recommened. Generally, lubricating grease is applied for speed under 60 m/min. For operating speed over 60 m/min, grease with higher viscosity could be used.