Self-positioning hole-making device for circumferential hole system of arc-shaped surface

Abstract

The invention discloses a self-positioning hole-making device for a circumferential hole system of an arc-shaped surface. The self-positioning hole-making device comprises a supporting frame, a positioning block, a drilling template, a drill sleeve and a limiting device. The supporting frame comprises a bottom frame and a mounting frame, the mounting frame is arranged on the bottom frame, and a supporting bottom plate, a mounting plate and the limiting device are arranged on the mounting frame; and the mounting plate and the supporting bottom plate are connected with the drilling template, andthe drill sleeve and the positioning block are arranged on the drilling template. The limiting device comprises a first limiting rod adjusting plate, a second limiting rod adjusting plate and limiting rods. The first limiting rod adjusting plate and the second limiting rod adjusting plate are located on the mounting frame and detachably connected with the limiting rods. The device is high in efficiency, high in precision, low in intensity and suitable for large-scale production and application.

Description

technical field [0001] The invention belongs to the technical field of hole-making devices, in particular to a self-positioning hole-making device for arc-shaped peripheral holes. Background technique [0002] At present, in the field of aerospace equipment manufacturing, a semicircular open equipment structure connected by multiple rows of arc-shaped beams is widely used. The precision of the connecting hole is very important for the interchangeability of the curved beam and the stability of the whole product. There are generally the following methods for processing the circumferential hole system on the arc surface of large arc-shaped parts: [0003] 1) Fitter making holes [0004] According to the structural characteristics of arc-shaped parts, when making holes on the arc-shaped surface, the fitter must first draw the processing position line of each hole on the arc-shaped workpiece, and then hang the product on the vertical rocker drilling platform. Each person suppo...

AI Technical Summary

Problems solved by technology

If there is only a rotary table, when the hole is made near the end of the arc surface of the arc, the workpiece will easily interfere with the spindle; if there is no rotary table, only the mechanical universal milling head is required, and the angle of the milling head needs to be adjusted manually , and the indexing accuracy is low, it is difficult to ensure the position accuracy of the hole

[0009] With the development of the large-scale equipment manufacturing industry, aerospace ground equipment presents a variety of types and complex structures. Among them, the hole-making accuracy of the arc-shaped circumferential hole system of the arc-shaped structural part is high, and it is usually processed by a fitter. Its low efficiency, low precision, high labor intensity, not suitable for mass production

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