I.T BSV-N series 25 ELECTROMECHANICAL TURRETS TECHNICAL INFORMATION ISSUED

Transcription

1 series 25 ELECTROMECHANICAL TURRETS TECHNICAL INFORMATION I.T. 643 GB The data given in the I.T. are subject to technical modifications without notice. ISSUED 9-8

2 WORKING PRINCIPLE Water-proof housing with oil immersed mechanism, life lubricated. Clamping on 3-part Hirth front toothing High stifness and accuracy No lifting during rotation. F D E B Single three-phase electric motor for rotation and clamping. A L N I G M P H C Main overall dimensions and fixings interchangeable with previous series and SM turrets. A) Electrical motor (three-phase) B) Gearbox C) Rotation and cam locking mechanism D) Pre-indexing solenoid E) Pre-indexing control switch F) Shock-absorber system G) Preloaded locking spring H) 3-parts front coupling I ) Locking control switch L) Angular position transmitter (absolute) M) Rotating plate N) Coolant flange P) Quick change coolant valve I.T B-2

3 CHARACTERISTICS AND PERFORMANCES Technical data Size 2/25 6/25 2/25 25/25 32/24 4/2 Tool stations N Version () std slow very slow fast std slow std slow very slow std slow std slow std slow very slow Inertia of transportable mass Kgm 2,45,8,2,55,9,8 3 4, Indexing time (including locking) 3 s,4,48,58,4,48,58,65,78,78,,25,25,45 2,5 45 s,48,57,69,48,57,69,78,94,8,94,8,25,45,45,65 2,5 8 s,6,38,65,6,38,65,83 2,23 2,8 2,23 2,8 2,7 3,8 3,8 3,66 5,53 Rotating time only 3 s,5,8,2,5,8,2,24,3,36,3,36,33,38,38,45,68 45 s,23,27,32,23,27,32,36,45,54,45,54,49,58,58,67 Indexing frequency a9 cycle/min Electric supply See wiring diagram Mass (without disc) ~ Kg Ambient temperature range C Coolant supply: Costant flow bar Pressure cut-off during turret rotation Protection degree (DIN 45) bar IP65 IP65 IP65 IP65 IP65 IP65 () Other versions on request. Filtering 5 µm. I.T B-3

4 CHARACTERISTICS AND PERFORMANCES Accuracy,/, A α β, A Repeatibility accuracy α ±,6" (,78 µm/ mm) Indexing accuracy β ± 4" (,9 µm/ mm) Loading capacity b F Max. tangential torque Fxb Nm b F2 Max. tilting torque (to push) F2xb Nm b F3 b Max. tilting torque (to lift) F3xb Nm P Unbalancing torque P x b Nm I.T B-4

5 DUTY PERFORMANCES F [N] Tangential force F b F b [mm] The diagram refers to F values which cause elastic yelding within the rates shown in the schedule. Turret size Max. elastic yelding mm,5,7,8,4,2,6 Distance from centre of measuring point mm F2 [N] Tilting force (to push) F2 2 2 b b [mm] I.T B-5

6 DUTY PERFORMANCES F3 [N] Tilting force (to lift) F b b [mm] F4 [N] Radial tilting force F4 a a [mm] I.T B-6

7 PARAMETERS FOR TURRET SELECTION S: CHIP CROSS-SECTION (max) for steel R 6 N/mm 2 Ks 2.2 N/mm 2 N: POWER (max) for Vt 2 m/min N [kw] S [mm 2 ] b ,8,6, b [mm] For any material with different Ks: Sx S X 2.2 Kx For different cutting speeds: Nx N X Vtx 2 I.T B-7

8 2/25 OVERALL DIMENSIONS PG 3,5 (8) () /4" GAS 3 ø75 ø2 ø3 h ø5 g6 52 (6) ,5 2 N M2 (for lifting) x45 22 max 25 +, 63 (5) (4) 2 M8x POS. VERSION 8 POS. VERSION TOOL DISC INTERFACE (7),4 ~,2 OR 25,8 for M8 ø8 ø3 Js6 ø ø min ø8 max ø85 ) Inlet coolant position, at choise. 2) Right or left coolant outlet position. 3) Adjustable coolant ring. 4) Coolant outlet displacement range. 5) Soft surface for boring the disc reference pins. 6) Reference pin to be positioned on both side, at choise. 7) Reference pins between tool disc and turret. 8) Electrical connections on both side, at choise. Important: The connection cable must be provided with fittings and gaskets in order to avoid penetration of water into the turret. I.T B-8

9 6/25 OVERALL DIMENSIONS PG 3,5 (8) () /4" GAS 55 ø25 ø32 ø4 h ø7 g6 49 (6) N M2 (for lifting) , x45 22 max 237 +, 8 (5) (4) 2 M8x5 2 2 POS. VERSION 8 POS. VERSION TOOL DISC INTERFACE (7),4 ~,2 OR 25, for M ø ø4 Js6 min ø5 max ø ø ø6 ) Inlet coolant position, at choise. 2) Right or left coolant outlet position. 3) Adjustable coolant ring. 4) Coolant outlet displacement range. 5) Soft surface for boring the disc reference pins. 6) Reference pin to be positioned on both side, at choise. 7) Reference pins between tool disc and turret. 8) Electrical connections on both side, at choise. Important: The connection cable must be provided with fittings and gaskets in order to avoid penetration of water into the turret. I.T B-9

10 2/25 OVERALL DIMENSIONS PG 3,5 (8) () 3/8" GAS 2 (5) ø252 ø62 ø5 h5 3 27,5 28 +, 45 2 (4) 2 ø2 g (6) 35 Mx POS. VERSION 8 POS. VERSION N M2 (for lifting) TOOL DISC INTERFACE 22 2 (7),4 ~, max,8 OR for M2 ø2 ø5 Js6 min ø3 max ø4 ø ø6 ) Inlet coolant position, at choise. 2) Right or left coolant outlet position. 3) Adjustable coolant ring. 4) Coolant outlet displacement range. 5) Soft surface for boring the disc reference pins. 6) Reference pin to be positioned on both side, at choise. 7) Reference pins between tool disc and turret. 8) Electrical connections on both side, at choise. Important: The connection cable must be provided with fittings and gaskets in order to avoid penetration of water into the turret. I.T B-

11 25/25 OVERALL DIMENSIONS PG 3,5 (8) () 3/8" GAS 25 (5) ø3 ø22 ø63 h5 27, , (4) 2 35 ø26 g6 2 (6) M2x POS. VERSION 8 POS. VERSION N M2 (for lifting) TOOL DISC INTERFACE (7),4 ~, OR max, for M6 ø6 ø ø63 Js6 ø6 min ø7 max ø75 ) Inlet coolant position, at choise. 2) Right or left coolant outlet position. 3) Adjustable coolant ring. 4) Coolant outlet displacement range. 5) Soft surface for boring the disc reference pins. 6) Reference pin to be positioned on both side, at choise. 7) Reference pins between tool disc and turret. 8) Electrical connections on both side, at choise. Important: The connection cable must be provided with fittings and gaskets in order to avoid penetration of water into the turret. I.T B-

12 32/24 OVERALL DIMENSIONS 267 PG 3,5 (8) () 3/8" GAS 325 (5) ø39 ø27 ø8 h , (4) 2 38 ø32 g (6) M2x POS. VERSION 8 POS. VERSION N 2 M6 (for lifting) TOOL DISC INTERFACE (7) OR max 2,2 ~,2,8 ø for M2 ø6 ø8 Js6 ø3 ø32 min ø7 max ø22 ) Inlet coolant position, at choise. 2) Right or left coolant outlet position. 3) Adjustable coolant ring. 4) Coolant outlet displacement range. 5) Soft surface for boring the disc reference pins. 6) Reference pin to be positioned on both side, at choise. 7) Reference pins between tool disc and turret. 8) Electrical connections on both side, at choise. Important: The connection cable must be provided with fittings and gaskets in order to avoid penetration of water into the turret. I.T B-2

13 4/2 OVERALL DIMENSIONS 6 23 PG 3,5 (8) () /2" GAS (4) +, ø355 ø h5 478, (5) ø36 47 ø4 (6) N 2 M24 (for lifting) TOOL DISC INTERFACE T-Nut M2 DIN 58 (7) max, for M24 M2 ø6 ø Js6 min ø245 max ø255 ø ø22 ) Inlet coolant position, at choise. 2) 4 coolant outlet position. 3) Coolant valve. The valve can be fitted on one of the 4 coolant outlet position. The drawing represents how the valve is positioned when the disc is mounted. Without the disc, the valve produtes by 2 3 mm is comparison with the position indicated. 4) Coolant outlet displacement range. 5) Soft surface for boring the disc reference pins. 6) Reference pin to be positioned on both side, at choise. 7) Reference pins between tool disc and turret. 8) Electrical connections on both side, at choise. Important: The connection cable must be provided with fittings and gaskets in order to avoid penetration of water into the turret. I.T B-3

14 I.T B-4

15 WIRING DIAGRAM ~ WIRING NUMBER REF. COMPONENT CHARACTERISTICS SIMBOLS COLOUR SIGNALS ELECTRIC MOTOR (three-phase) () V 5/6 Hz For other characteristics see Tab. ~ 3 U V W U2 V2 W2 WHITE GREEN BLACK WHITE GREEN BLACK See Tab. 2 2 THERMAL DETECTOR 35 C,5A 25V 2 BROWN BROWN 3 BRAKE 24 V D.C. 2/6 8 W 2/4 2 W 3 4 GREEN GREEN 4 INDEXING SOLENOID 24V D.C. 44 W 5 6 BLUE BROWN 5 INDEXING CONTROL SWITCH 6 LOCKING CONTROL SWITCH 24V D.C. ± % 2 ma (load) OUTPUT-PNP-NO BROWN BLACK BLUE BROWN BLACK BLUE + V D.C. EXIT V D.C. + V D.C. EXIT V D.C. 7 ANGULAR POSITION TRANSMITTER (ABSOLUTE) 24V D.C. ± % 35 ma (supply) 5 ma/exit (load) OUTPUT-PNP BROWN BLUE WHITE YELLOW GREEN VIOLET BLACK PINK + V D.C. V D.C. Bit Bit 2 Bit 3 Bit 4 Strobe Parity check GREEN / YELLOW PE ELECTRIC MOTOR CHARACTERISTICS Tab. ELECTRIC MOTOR'S WIRING () Tab. 2 Turret size Minimum required power Short circuit power 2/6 KVA, KVA,6 2/25 KVA,8 KVA 2,8 32/4 KVA 2,6 KVA 3,8 U V W U2 V2 W2 WIRING Y (38 V) U V W U2 V2 W2 WIRING (22 V) () Other voltages on request. The termal detector gives a signal only motor overheating. I.T B-5

16 CYCLE POS. (START) POS. 2 Locked turret POS. 2 Locked turret T T POS. 2 (START) T2 POS. T2 NOTE : ELECTRIC MOTOR CW CCW R2 R2 For the T-T2-R-R2 value see Tab. 2 3 BRAKE R R 4 INDEXING SOLENOID Indexing pin mech. position 5 INDEXING CONTROL SWITCH 6 LOCKING CONTROL SWITCH 7 ANGULAR POSITION TRANSMITTER (ABSOLUTE) BIT 2 BIT 3 BIT 4 BIT PARITY CHECK STROBE For position code see Tab. Tab. FUNCTION POSITIONS BIT 2 BIT 3 BIT 4 BIT PARITY CHECK STROBE CW CCW Tab. 2 TURRET SIZE PROGRAMMING TIME ALLOWED LAG TIME MAX T (ms) T2 (ms) R (ms) R2 (ms) Standard and fast Slowed Standard Slow and very slow I.T B-6

17 CYCLE DESCRIPTIONS. Signals To get a change of positions on the turrets, the control equipment (usually a N.C. equipment) must control the components mentioned below according to a well defined sequence (see wiring diagram on page 5). Motor () Brake Indexing solenoid (4) The following output signals from the turret are provided for driving the positioning cycle: Angular position given by the angular position transmitter (7) Indexing control switch (5) Locking control switch (6). Flow chart TURRET START CYCLE YES DE-ENERGIZE BRAKE AND SET ROTATION. Description of the operating sequence This description refers to sequence cycle: the first part gives the sequence to pass from position to position 2 with clockwise rotation, the second part gives the sequence to pass from position 2 to position 2 with counterclockwise rotation. As indicated by the cycle, the controls are to be performed according with the following sequence: De-energize the brake and start motor rotation in the desired direction. If, as in the case shown by the diagram, the next position (pos. 2) is the Stop position, when the strobe signal reached a zero level, the solenoid (4) is to be energized. In case of passage from position 2 to position 2, wait for the reading signaling the passage on pos. then, since the next one is the Stop position, wait until the next strobe signal reaches a zero level and (at that time only) energize the solenoid (4). N.B.: The maximum lag time between the reading of the strobe signal and the excitation of the solenoid (4) cannot exceed the R values indicated in the table. The turret goes on rotating until the indexing pin, pushed by the solenoid (4), enters into the mechanical stop slot. This movement is detected by the sensor (5) which must immediately stop the motor that, once expired the T time will re-start rotating in the opposite direction. During this phase the turret is locking and its locked position is detected by the sensor (6) and this signal is used to stop the motor (). The maximum lag time between the signal of the sensor and the stopping of the motor must never exceed the R2 value shown in the table. At this point the machine can be started, in order to go on working. The solenoid (4) is to be de-energized after the expiration of the T2 lag time starting from the moment when the sensor (6) signal is read. NO NO NO BEFORE GOAL POSITION-STROBE YES SET INDEX max. allowed lag time R ( * ) INDEX CONTROL SWITCH YES STOP ROTATION SET TIMER T ( * ) DELAY TIMER T EXPIRED SET REVERSE ROTATION N.B.: The T, T2, R, R2 times must be understood as real times execution of the controls and the signals checked on the terminal board of the turret. For an accurate detection and measurement of the above mentioned values it is advisable to use adeguate instrumentation such as an oscilloscope with memory and current sensing devices. NO LOCKING CONTROL SWITCH YES STOP MOTOR max. allowed lag time R2 ( * ) YES CONCIDENT POSITION YES START TO THE MACHINE WORK NO FAULT SET BRAKE ( ) See tab. 2 sheet 6 (Cycle). * I.T B-7

18 "PA" VERSION TURRETS (with axial throught-bore) A ød Turret size ; ø D A DRIVEN TOOLS SYSTEM " *" turrets have been designed for modular fitting onto the different driven tool systems. BS * -DT With ODT-N driven tool device. Tool coupling according to DIN 89. Tool disc with axial seats. Front machining. ; 6 BS * -TR With IDT-R driven tool device. Tool disc with radial seats. Front machining. NOTE: Front and back machining for sub-splinde machines is also available on request. For further information please contact our Technical Dept. I.T B-8

19 UCN CONTROL UNIT The UCN control unit manages the moving cycle of turret in a simple and optimized way: simple and optimized software; no memory positions are occupied in the machine control; automatic chose of the shortest path; steady monitored for faults. For other information see the Technical Information UCN- *. IDENTIFICATION CODE * - * - * /2 * - * - * - ( * ) SIZE CODE OPTIONALS AXIAL THROUGH BORE CODE Without (Standard) With (Optional) PA CODE FREQUENCY and INERTIA 5 H 5 Hz Fast 6 H 6 Hz Fast 5 5 Hz Standard 6 6 Hz Standard 5 L 5 Hz Slow 6 L 6 Hz Slow 5 LL 5 Hz Very slow 6 LL 6 Hz Very slow POSITIONS CODE Nr. 8 Pos. 8 Nr. 2 Pos. 2 SERIE 2 29 () MOTOR VOLT. and FREQUENCY V - 5/6 Hz V - 5/6 Hz V - 5/6 Hz () From 2 to 29 the performance and the overall dimensions do not change. I.T B-9

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