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分析三爪的受力与磨损情况,采取改进措施,则可提高三爪的使用寿命。 一、三爪自定心卡盘的受力与磨损分析 新的三爪自定心卡盘夹持工件时,三爪面成三条线接触工件表面、同轴度好、钢性也好。 当刀具与工件、三爪?盘作长期的受力运动后,三爪面由于受力不均、如图1所示,前面a点处受力时,后面b点处也必须受力。作用力的大小与受力点处的磨损成正比,和夹持精度成反比。而且,夹持
Analysis of the three jaw force and wear, to take improvement measures, you can improve the service life of three claws. First, the three-jaw self-centering chuck force and wear analysis The new three-jaw self-centering chuck clamping the workpiece, the three claw surface into contact with the workpiece surface, coaxial, good steel. When the tool and the workpiece, the three-jaw plate for long-term force movement, the three claws due to uneven force, shown in Figure 1, a force at the front of the force, the back point b must also force. The magnitude of the force is proportional to the wear at the point of force and inversely proportional to the holding accuracy. And, hold