Closed Twin-Point Four-Point Press Technology Parameters
Closed type twin-point four-point press is based on the manual, hydraulic or pneumatic cylinder as the power source, according to the principle of equal stress distribution, utilizes four points as fulcrum press molding technology, and its structure is mainly composed of four guide columns, oil cylinder and connecting link rod, etc.
Closed type twin-point four-point press technology has the advantages of low investment, simple structure and convenient operation; it is suitable for large and medium workpiece loading and unloading, and the theoretical process is accurate, so the error, production cost and quality are advantages compared with other forming processes.
1. System parameters
1.1 Main technical indicators
(1) Nominal pressure: 200~5000KN.
(2) Workbench area: 500×500mm, 1000×1000mm, 1000×1200mm, 1200×1200mm, customized according to user requirements.
(3) Maximum stroke: ≤800mm.
(4) Maximum operating speed: up to 10MPa, 400 mm/s; 10MPa above ≤300mm/s.
(5) Installation height: ≤4000mm.
(6) Control mode: manual control, numerical control, digital control, etc.
(7) Pressure source: manual pressure source, hydraulic pressure source or pneumatic pressure source.
(8) Safety device: complete safety protection device.
1.2 Guide column
The closed type twin-point four-point press technology parameters guide columns are mainly composed of two guide columns on both sides, which can ensure the stable development of the production line, and the guide columns are mainly made of high-quality forging through overall quenching, so as to ensure that the accuracy is improved and the service life is extended.
2. Parameters of workbench
2.1 Structure of workbench
The workbench of a closed type twin-point four-point press is usually composed of powder metallurgy or aluminum alloy material or other hard materials, which is better than other forming processes; and the surface of the workbench can be coated with special materials to enhance its wear resistance, corrosion resistance and lubrication performance.
2.2 Layout of pressure point
The pressure point of the closed type twin-point four-point press is located in the four corners of the workbench, and the standard distance between the two pressure points is 20mm.
2.3 Pressure point spacing
The standard spacing of the pressure point of the closed type twin-point four-point press is 8~10.8mm, and the maximum vertical range is 600mm.
3. Parameters of main driving method
3.1 Hydraulic pressure drive
The hydraulic drive of the closed type twin-point four-point press is divided into two types: electrical hydraulic pressure and manual hydraulic pressure.
3.2 Motor drive
The motor drive of the closed type twin-point four-point press is usually driven by servo motor, and its output torque meets the requirement of metal forming.
3.3 Pneumatic drive
The pneumatic drive of the closed type twin-point four-point press is usually driven by a reciprocating compressor.
4. Safety technology
For safety protection, the closed type twin-point four-point press is usually equipped with photoelectric safety cover, safety limit switch sensor and anti-oil leakage device. The safety protection device can accurately detect the work condition of the equipment and ensure the safe and efficient operation of the equipment.
