Anti-rotation and anti-bending brake device

Abstract

The invention provides an anti-rotation and anti-bending brake device. The anti-rotation and anti-bending brake device comprises an annular piston cylinder, wherein a base matched with the piston cylinder is arranged below the piston cylinder, and the base is annular; an annular sliding groove is formed in the inner wall of the lower part of the piston cylinder; the upper surface of the base is provided with a clamping ring attached to the groove wall at the lower part of the sliding groove, and sliding gaps are formed between the upper surface of the clamping ring and the groove wall on the upper side of the sliding groove; and a piston is arranged in the piston cylinder, an annular sliding block is arranged on the outer wall, opposite to the piston cylinder, of the piston, the sliding block is located between the sliding gaps, the sliding block is attached to the sliding groove, the outer wall of the lower portion of the piston is attached to the inner wall of the clamping ring, andthe outer wall of the upper portion of the piston is attached to the inner wall of the upper portion of the piston cylinder. According to the anti-rotation and anti-bending brake device, a main shaftcan be clamped to the largest extent, the situation that the main shaft is rotated or bent during machining is effectively avoided, and the anti-rotation and anti-bending function is achieved.

Description

technical field [0001] The invention relates to a brake device, in particular to an anti-rotation and anti-bending brake device. Background technique [0002] The brake device is a device that fastens the position of the spindle by clamping, so it is often used on processing machine tools. When the brake device clamps the spindle, the processing machine tool will drive the brake device to rotate through the rotary table, thereby driving the spindle Rotate, at this time, only the tool needs to touch the spindle to realize the processing of the spindle, while the traditional brake device is formed by pressing on the surface of the spindle through a number of pressure blocks evenly distributed around the spindle, not completely wrapped. The clamping force is limited, and the pressure of the pressing block comes from the jacking of the shaft, and the force that can be formed is also limited, making it extremely difficult for the traditional brake device to really clamp the spind...

AI Technical Summary

Problems solved by technology

[0002] The brake device is a device that fastens the position of the spindle by clamping, so it is often used on processing machine tools. When the brake device clamps the spindle, the processing machine tool will drive the brake device to rotate through the rotary table, thereby driving the spindle Rotate, at this time, only the tool needs to touch the spindle to realize the processing of the spindle, while the traditional brake device is formed by pressing on the surface of the spindle through a number of pressure blocks evenly distributed around the spindle, not completely wrapped. The clamping force is limited, and the pressure of the pressing block comes from the jacking of the shaft, and the force that can be formed is also limited, making it extremely difficult for the traditional brake device to really clamp the spindle, but when the tool feeds, the tool will exert pressure on the spindle On the other hand, when the spindle is rotating at high speed, if the spindle cannot be clamped, the spindle is prone to rotation or side bending, which seriously affects the processing quality of the spindle, resulting in extremely poor processing accuracy and even a certain potential safety hazard.

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