Select the appropriate inspection fixture type:
Choose the fixture based on the workpiece material, shape, and processing requirements. For example, vises and chucks are commonly used in machining; pneumatic and hydraulic fixtures are commonly used in assembly lines; custom-shaped workpieces may require custom fixtures.
Installation and Adjustment:
Securely install the inspection fixture on the machine tool or worktable, ensuring stability.
Adjust the clamping force of the inspection fixture to avoid excessive tightness causing workpiece deformation or excessive looseness causing displacement.
For magnetic fixtures (such as electro-permanent magnet fixtures), check the uniformity of the magnetic force to avoid localized insufficient magnetic force.
Workpiece Positioning and Clamping:
Clean the workpiece surface and the contact surface of the inspection fixture, ensuring there is no oil or impurities affecting the clamping effect.
Place the workpiece on the positioning reference surface of the fixture, ensuring accurate positioning.
Gradually clamp the workpiece, avoiding sudden force that could cause workpiece displacement or fixture damage.
Precautions during processing:
Regularly check the clamping condition of the fixture to prevent loosening due to vibration or external forces.
For long-duration machining operations, the fixture temperature (such as the coil temperature of a magnetic fixture) must be monitored.
Avoid overloading the fixture to prevent damage or impact on workpiece accuracy.
