Non-planar-long-and-thin-profile-machining-oriented self-adaptive linkage clamping device and method

Abstract

The invention discloses a non-planar-long-and-thin-profile-machining-oriented self-adaptive linkage clamping device and method. One side of a tool block is provided with a machine tool caliber base. Two auxiliary groove limiting blocks are arranged on the machine tool caliber base. The top ends of the two auxiliary groove limiting blocks are provided with pressing blocks fixed through limiting bolts respectively. The pressing blocks are provided with sliding through holes. One ends of the pressing blocks stretch to the position above the tool block. The limiting bolts are provided with springs. A drive cylinder is arranged between the two auxiliary groove limiting blocks. The top of the drive cylinder is connected with a push rod with a main groove, a rotating lever is arranged in the main groove, and the main groove is provided with a limiting pin shaft penetrating through the main groove and connected with the rotating lever and capable of controlling the inclination angle of the rotating lever. According to the non-planar-long-and-thin-profile-machining-oriented self-adaptive linkage clamping device and method, the inclination angle of the rotating lever can be changed by rotating the limiting pin shaft, it is avoided that mechanical pressing plate clamping is originally conducted by tightening the bolts manually, the labor intensity of workers can be lowered, the auxiliary time is saved effectively, and the machining efficiency is improved.

Description

technical field [0001] The invention belongs to the field of fixtures, and in particular relates to an adaptive linkage clamping device and method for processing non-planar slender materials. Background technique [0002] The long truss parts are used for the wings and fuselage of the aircraft, which are slender parts; the rib parts have complex structures and obvious non-planar surface features, and are used for the empennage and wings of the aircraft. At present, when processing slender aerospace structural parts, vacuum adsorption is often used in the vertical direction, and the hydraulic calipers that come with the milling machine are used for clamping in the horizontal direction. However, due to the variable wall thickness of the upper and lower edges (gradually changing between 2 and 3 mm) during finishing, the vacuum adsorption effect is not ideal, so the traditional bolt clamping method is used to clamp the workpiece (the length of the stringer is 10 to 20 meters) T...

AI Technical Summary

Problems solved by technology

However, due to the variable wall thickness of the upper and lower edges (gradually changing between 2 and 3 mm) during finishing, the vacuum adsorption effect is not ideal, so the traditional bolt clamping method is used to clamp the workpiece (the length of the stringer is 10 to 20 meters) There are more than 10 sets of machine tool calipers used on special milling machines, and two bolt clamps are installed on one set of calipers, which takes a long time for clamping). It is cumbersome, which seriously affects the processing efficiency, and the uneven clamping force during the clamping process will easily cause the deformation of the workpiece, resulting in low processing accuracy of the workpiece, or even scrapped

Images