Hydraulic Power Unit Series
Mining Explosion-proof Hydraulic System
VIEW DETAILS
Phone Number
400 019 6868
A fixture hydraulic system adopts hydraulic transmission with pressurized oil as working medium to drive actuators such as hydraulic cylinders, enabling automatic positioning, supporting and clamping of workpieces. Replacing conventional manual bolting and pressing clamping methods, it drastically boosts production efficiency and automation level.
METRICS
Taking the basic single-cylinder system as an example, its workflow is detailed below:
The motor starts and drives the hydraulic pump to draw oil from the tank and build up pressure.
While idle, the directional control valve stays at neutral position. Pump delivery oil flows directly back to the tank via relief valve or valve neutral port at low system pressure to save energy and reduce heat generation.
Triggered by PLC command or manual clamp button, the solenoid directional valve shifts position. Pressurized oil enters the cap end of the hydraulic cylinder to extend the piston rod and drive the fixture to clamp the workpiece.
System pressure rises once clamping completes. Hydraulic lock seals the oil circuit to avoid backflow. When preset pressure is detected by pressure switch, a ready signal is sent to the machine for machining start.
The machine (e.g., machining center) performs cutting, welding and other procedures.
Upon machining completion, PLC sends reverse signal to energize the solenoid valve oppositely. Pressurized oil flows into the rod end of the cylinder to open the hydraulic lock and retract the rod for fixture release.
Operators remove finished parts and load new blanks for the next working cycle.
Large & Stable Clamping Force: Hydraulic drive delivers high smooth clamping force without impact.
Easy Automation Integration: Perfectly matched with PLC and sensors, serving as fundamental equipment for intelligent manufacturing and FMC/FMS flexible manufacturing units.
Multi-point Synchronous Force Control: One hydraulic power unit can actuate dozens or hundreds of clamping points; reducing valves precisely regulate clamping force at individual stations.
Compact Layout: Hydraulic components feature small footprint and light weight under identical power output with flexible arrangement.
High Safety & Reliability: Built-in overload protection via relief valve; hydraulic lock enables long-term stable pressure retention.
Machining: Fixtures for CNC machining centers and milling machines (4th/5th-axis rotary fixtures, hydraulic vises).
Welding Lines: BIW body-in-white welding fixtures for precise sheet metal positioning.
Assembly Lines: Press force supply for press-fitting and riveting stations.
Inspection Tooling: Secure workpiece fixing during precision measurement.
