4. Main structure and working principle
The machine is a 6axis (Y1, Y2, Z1, Z2, X, R) hydraulicpress brake.Each continuously precise and stable pure servo motor driven high-quality, high-precision press brake has an imported servo motor as its driving motive power, which is the guarantee for precise and stable moving of the equipment. It is mainly composed of the following components:
Frame body
The component comprises a frame, the upper and lower table,
transmission screw rod, support bearing group, guide wheel group,
etc. The transmission screw rod is connected with the upper table
and the frame through bolts, the servo motor drives the screw rod
to rotate upper table rapidly with reciprocating motion, for the
purpose of bending and forming molds. The two groups of
transmission screw rods can be independently controlled, and the
angle deviationcan be automatically compensated, so that the angle
change of the workpiece is controlled within the tolerance range.
Back gauge system
The assembly unit comprises lifting component, sliding table
component, material retaining component, etc. The positioning
system of back gauge of the machine tool is all driven by a servo
motor through precision screw rod, can quickly reach the specified
position, up to micron-level precision, finally realize full
automation and improve the working efficiency.
Mold components
The assembly unit consists of the upper and lower mold assembly.
The upper mold is fixed on the upper table by the clamping device;
the clamping device provided by the device realizes quick loading
and unloading of molds through a mechanism. The clamping device is
provided with a wedge trimming mechanism for locally modifying the
bending angle so that the angle of workpiece is changed within the
tolerance range. The lower mold, together with the mold sea and
rail guide, is arranged on the lower table.
5. CNC Controller
Delem and STEP Controller please reference by the documents of DA-66T_English, DA-69T_English and STEP_English.
6. Hoisting and installation
(1)Hoisting
The center of gravity of the machine is slightly forward and on the
high side, so it is necessary to pay attention to the position of
center of gravity of the machine tool during lifting, handling and
installation so as to avoid overturning of machine tool. During
hoisting, the lifting appliance must be fixed on the hoisting hole
of machine tool for vertical hoisting. For transportation, the
equipment must be firmly fixed with a bandage.
(2)Installation and leveling
As indicated in the attached drawing (foundation drawing), make the
machine tool installation base in advance, put the machine tool on
the base, and install the foundation bolts and foot-pad steel
plate. Meanwhile, confirm the level of the rack, with the lower
table surface as the baseline. Adjust the bolts of base anchor to
make the levelness in the vertical and horizontal
direction≤1000:0.20. To adjust the levelness of machine tool in
both vertical and horizontal direction to reach the requirement.
(3)Requirements for external connection cable
For the safety of machine and operators, a 100A three-phase air
circuit breaker must be installed 2 for externally connected power
supply, and the cable is required to be 4-core RV wire ≥10mm . In
addition, the grounding device needs to be set independently and
cannot be shared with other electrical circuits, with resistance
value ≤ 4 Ω.
7. Maintenance
Specifications on daily maintenance of hydraulic press brake.
In order to ensure good performance and precision of equipment
during production, guarantee product quality, reduce maintenance
frequency and prolong the service life, it is required to strictly
carry out daily inspection items, e.g., dust and rust removal,
moisture prevention, lubrication, screw tightening, etc.
Sliding table bearing and lifting bearing shall be lubricated, checked and tightened, and lubrication oil replaced every two months (oil grease resistant to 200℃ high temperature shall be used).
Major parts such as the screw rod, siding rail, mold seat, upper
and lower table shall be subject to dust and rust removal every two
days;
Movable parts, such as screw rod, guide rail, shall be lubricated,
checked and tightened every month.
Electrical parts shall be subject to dust removal, checked and
tightened once a week.
