Which equipment in machining enterprises needs compressed air

In machining enterprises, compressed air, as a clean and efficient power source and process medium, is widely used in many production processes. The following are common equipment requiring compressed air in machining enterprises and their specific application scenarios:

1. pneumatic power equipment

1. pneumatic wrench/air gun
   • application Scenarios: Used to fasten or remove bolts and nuts, especially in large equipment assembly or maintenance of high efficiency.
   • Advantage: Large torque, high speed, lighter than power tools, suitable for high altitude or narrow space operations.
2. Pneumatic grinding machine/pneumatic grinding machine
   • application Scenarios metal surface grinding, deburring, polishing and other finishing processes.
   • Advantage: Stable speed, suitable for long-term continuous operation, no spark risk, high safety.
3. pneumatic rivet gun
   • application Scenarios: Riveting of sheet metal parts and structural parts, such as automobile body and aviation parts manufacturing.
   • Advantage: Strong impact force, fast riveting speed, and lower noise than electric rivet gun.
4. pneumatic drilling rig
   • application Scenarios: Drilling holes in materials such as metal and wood is especially suitable for scenes that require frequent movement or no power supply.
   • Advantage: Light weight, flexible operation, can be equipped with drill bits of different diameters.

2. pneumatic control and transmission equipment

1. cylinder (pneumatic actuator)
   • application Scenarios:
     • automated production line: Drive mechanical arm, sliding table, indexing plate and other moving parts.
     • Fixture/fixture: Through the cylinder to achieve rapid clamping and release of the workpiece, such as the automatic tool changer of CNC machine tools.
   • Advantage: Quick action, accurate positioning, simple structure and low maintenance cost.
2. Pneumatic motor
   • application Scenarios drive rotating equipment, such as mixer, conveyor belt, hoist, etc.
   • Advantage: Adjustable speed, suitable for occasions that require variable speed or forward and reverse rotation, and strong overload protection capability.
3. Pneumatic valve
   • application Scenarios: Control the on-off or flow of fluid (such as coolant, lubricating oil), such as the cooling system of a machine tool.
   • Advantage: Fast response speed, good sealing, and strong corrosion resistance.

3. machine tool auxiliary equipment

1. CNC Machine Tools (CNC)
   • application Scenarios:
     • spindle cooling: The main shaft bearing is cooled by compressed air to prevent the accuracy from being reduced due to high temperature.
     • Tool magazine change: Pneumatic drive tool magazine to rotate or manipulator to grab the tool.
     • Guard Door Switch: The cylinder controls the automatic opening and closing of the protective door of the machine tool.
   • Advantage: Improve the operation stability of the machine tool and extend the service life.
2. machining center
   • application Scenarios:
     • air curtain protection: An air curtain is formed in the processing area to prevent chips and coolant from splashing.
     • workpiece purging: Clean the surface of the workpiece or the machine tool table with compressed air.
   • Advantage: Keep the processing environment clean and reduce manual cleaning time.
3. EDM (Electrical Discharge Machining Machine)
   • application Scenarios:
     • electrode clamping: Pneumatic chuck to fix the electrode to ensure machining accuracy.
     • Working fluid circulation: Compressed air drives the circulation of working fluid (such as kerosene) to cool the electrode and workpiece.
   • Advantage: Improve processing efficiency and reduce electrode wear.

4. Inspection and Cleaning Equipment

1. pneumatic gauge
   • application Scenarios: Used for precision measurement, such as pneumatic probe to detect workpiece size and shape error.
   • Advantage: High measurement accuracy, and non-contact measurement to avoid damage to the workpiece.
2. Pneumatic cleaning gun
   • application Scenarios: Clean the chips and dust in the machine tool guide rail, screw and other parts, or blow dry the surface of the workpiece.
   • Advantage the cleaning efficiency is high, and the airflow intensity can be adjusted to meet different cleaning needs.

5. other special equipment

1. sand blasting machine/shot blasting machine
   • application Scenarios: Sand or steel shot is sprayed onto the surface of the workpiece by compressed air to achieve rust removal, strengthening or surface treatment.
   • Advantage: High processing efficiency, and can control the injection force and coverage.
2. vacuum sucker
   • application Scenarios: In the automatic handling of the adsorption of workpieces (such as plate, glass), the need to generate a vacuum by compressed air.
   • Advantage: strong adsorption, and will not damage the surface of the workpiece.
3. Pneumatic balance crane
   • application Scenarios: Assist in handling heavy workpieces, balance gravity through the cylinder, and reduce the intensity of manual operation.
   • Advantage: Flexible operation and accurate positioning.

6. compressed air quality requirements

the quality requirements for compressed air in machining enterprises vary from equipment to equipment, but the following standards are usually met:

• pressure stability: Most equipment requires a stable pressure of 0.4-0.8MPa.
• Oil content: Precision equipment (such as CNC machine tools, pneumatic gauges) requires oil-free or low-oil compressed air (≤ 0.01 mg/m & sup3;).
• Moisture content: The dew point shall be reduced to below -20 ℃ through the cold dryer or suction dryer to prevent the condensation water from corroding the equipment.
• Particulate matter: Remove particles with a diameter ≥ 5 μm through a filter to avoid wear of pneumatic components.