Hydraulic clamp

Abstract

The invention discloses a hydraulic clamp. The hydraulic clamp comprises a clamping mechanism. The clamping mechanism is connected and fixed to a rotary shaft through a rotary shaft. The clamping mechanism comprises a spring strip and a friction plate. The friction plate is fixed to one end of the spring strip. When a five-axis front sway moves the appropriate position, a motor of the rotary shaftstops rotating to brake the rotary shaft. Hydraulic oil pushes a hydraulic push ring to move to apply force to the friction plate. Meanwhile, a clamp shell applies counter-acting force to the friction plate, and generated large friction force is applied to the rotary shaft so that the rotary shaft cannot rotate due to large cutting force during machining. When cutting in the position is completed, oil supply is stopped, the hydraulic push ring is made to return to the original position and loosen the friction plate through attraction force of a return strong magnetic ring and deformation recovery force of the spring strip, and then the motor conveniently drives the rotary shaft to rotate to adjust the position of a cutting tool so as to implement machining in the next position.

Description

technical field [0001] The invention relates to the technical field of milling, in particular to a hydraulic clamp. Background technique [0002] The five-axis swing head refers to the device that controls the two axial rotations of the tool in the five-axis machine tool. It is a key component of the five-axis machine tool and is used to adjust the angle of the tool during the machining process. After the angle is adjusted, there will be no change. The clamping mechanism is required to clamp the rotating shaft to ensure that the five-axis swing head will not rotate due to the interference of large cutting force during the entire processing process, increasing the stability and stability of the cutting tool. Processing accuracy. [0003] Most of the existing five-axis swing head clamping mechanisms are produced abroad, mainly using pneumatic internal clamping, which elastically deforms the metal sheet by compressed air, and then clamps the rotating shaft. The internal clampi...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing five-axis swing head clamping mechanisms are produced abroad, mainly using pneumatic internal clamping, which elastically deforms the metal sheet by compressed air, and then clamps the rotating shaft. The internal clamping relies on elastic deformation, reliability and clamping The clamping effect is poor, and the size of the pneumatic type is large, which makes the clamping mechanism large, which is not conducive to the flexible rotation of the five-axis swing head. It also has high cost, small clamping force, and difficult precise control of the clamping force. and other shortcomings

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