Specifications

CAK50/CAK61 SERIES ERROR! USE THE HOME TAB TO APPLY 标题 1 TO THE TE
X
SHENYANG MACHINE TOOL CO., LTD 38
mechanism inside the pump and the working pressure of the pump is of 1.5~3.5
Mpa.
In order to ensure cleanness of hydraulic oil of the hydraulic system, WU-63
×
80-J oil filter for sucking oil is mounted on the oil sucking mouth of the oil pump
for preventing dirt or foreign substance from entering to prolong the serving life of
the pump and decrease troubles. The air-filter mounted on the oil tank is used for
keeping air-flowing in the oil tank and preventing foreign substance in air outside
the tank from entering, also it is used for filling oil. The dis-assembly filtering net
can be cleaned and changed conveniently.
 Hydraulic return (Refer to Fig. 6-1 the Principle Diagram of Hydraulic System)
 Chuck return
The chuck return consists of single-way valve, relief valve, pressure relay and
electromagnetic reversing valve. The single-way valve CYP-02-A prevents
interference of clamping return with the other returns. The relief valve
BRVP-02-L-A is used to adjust clamping pressure of the chuck according to the
required clamping force of workpiece to be turned, in general, the adjusting range
of the clamping force is of 1.2~2.5Mpa. When the electromagnet YV1 is
electrifying, the chuck will clamp, the electromagnet YV2 is electrifying, the chuck
will release.
After the workpiece is clamped, the pressure relay MJCS-02-P-L-L (SP1) sends out
a ready signal, during machining if the pressure gets down due to reason of
system’s trouble, SP1 will send an alarm signal, and the machine will stop.
 Return of hydraulic speed-change
The return of hydraulic speed-change of spindle mainly consists of throttle valve,
relief valve, spill valve and electromagnetic reversing valve. The relief valve
BRVP-02-L-A is used to adjust pressure of three oil cylinders. The spill valve
RVA-02-L-B keeps certain back pressure in chamber of oil cylinder A0 separately
for preventing mis-action. The throttle valves TVCW-02-L-X, TVCA-02-L-X and
TVCW-02-L-Y can adjust flowing quantity of the hydraulic oil cylinder to realize
speed control, and also they can decrease hydraulic impulse. Combining action of
the magnetic reversing valves D5-02-3C4-D2 and D5-02-2N2-D2 can realize
different actions of the hydraulic oil cylinder to make spindle obtain automatic
change speed of 4 steps of idling step, low speed, middle speed and high speed to
increase automation of the machine.
 List of Hydraulic Components of the Machine
Name Type Qty. Manufacturer
Hydraulic pump VP-20-F-A2 1 Taiwan Janus Co.
Single-way valve CIT-03-A1 1 Taiwan Janus Co.