2results about How to "Reduce clamping deformation" patented technology

This invention discloses a deformation control milling fixture for machining thin-walled parts and its operating method. The milling fixture includes a base, a transmission mechanism, a support mechanism, and a flexible clamp. The base has a guide rail groove, the transmission mechanism is installed in the guide rail groove, the support mechanism is installed on the transmission mechanism, and the flexible clamp is disposed on the support mechanism. The base is used for fixed installation and connection to a machine tool platform, and the base has several threaded holes. The operating method of the milling fixture includes the following steps: S1: fixture assembly; S2: flexible clamp installation; S3: clamping part installation; S4: clamping part holding. In this application, the flexible support principle of springs is used to support the side of the thin-walled part, reducing the clamping deformation of the thin-walled part, reducing the vibration generated during machining, realizing stable milling machining of thin-walled parts of different sizes and shapes, and controlling the deformation of the thin-walled part during milling machining. The height adjustment function of the support mechanism can adapt to clamping parts of different heights.

This utility model discloses a five-axis CNC cutting and trimming positioning fixture for automotive center console panels, comprising a bracket, a lower fixed mold, an upper fixed cover, and a soft fixing device. The lower fixed mold is fixed to the top of the bracket; the upper fixed cover is detachably mounted on the lower fixed mold; and the soft fixing device is disposed between the lower fixed mold and the upper fixed cover. By placing the soft fixing device between the lower fixed mold and the upper fixed cover, the soft fixing device can press against the automotive center console panel, achieving flexible positioning of the panel. This allows the fixture to automatically adapt to panels with different curvatures (R5mm~R800mm), reducing clamping deformation (controlled to ≤0.05mm), effectively improving positioning accuracy, and significantly improving the quality of the cut edges. Simultaneously, it provides better clamping stability, is less prone to vibration during high-speed cutting, and prevents trimming burrs or chipping, thus facilitating cutting and trimming.