Tool for machining threaded holes for grating and performing assembling

Abstract

The invention discloses a tool for machining threaded holes for a grating and performing assembling. The tool comprises an upper mold plate, a lower mold plate, drill sleeves and pilot pins; after theupper mold plate and the lower mold plate are buckled, a cavity formed by an angular containing groove I and an angular containing groove I' is right matched with an outer frame of the grating, and acavity formed by an angular containing groove II and an angular containing groove II' is right matched with an inner frame of the grating; when the threaded holes are machined for the inner frame andthe outer frame of the grating, the inner frame and the outer frame are placed in the angular containing grooves I and II of the lower mold plate correspondingly, and then the upper mold plate is buckled to the lower mold plate; after installing, holes are drilled for the inner frame and the outer frame correspondingly in the positions of the drill sleeves; after the holes are drilled, the uppermold plate is taken down, and two end milled grating bodies and a right-angle grating body are installed in two containing grooves I and an angular containing groove III of the lower mold plate; and the inner frame and the outer frame of the grating, the two end milled grating bodies and the right-angle grating body are fixed together through screws. According to the tool, fast and accurate punching can be performed for the aluminum grating and assembling is performed; and the tool is easy to operate, low in cost and high in precision.

Description

technical field [0001] The invention belongs to the field of building doors and windows, and relates to a retro-style Chinese-style grille for quickly processing and assembling threaded connection holes. Background technique [0002] The existing aluminum grid processing is mainly based on welding and screwing. When the welding method is adopted, the grid aluminum profile is blanked first and then welded. Since the wall thickness of the grid aluminum profile is thin and it is a cavity profile, welding will cause deformation of the profile. For example, after the rectangular grid is welded, the diagonal deviation is large. Big, and there is a difference in height. Such problems exist in both the inner and outer frame aluminum profiles of the grille. When the inner and outer frames of the grille are connected, the inner and outer frame profiles, the milled grilles at both ends and the right-angle grille are placed in the welding template for positioning, and then welded, whi...

AI Technical Summary

Problems solved by technology

When the inner and outer frames of the grille are connected, the inner and outer frame profiles, the milled grilles at both ends and the right-angle grille are placed in the welding template for positioning, and then welded, which is inefficient; after the welding is completed, the weld bead needs to be polished to further reduce the processing cost. efficiency

The size of the welded aluminum grid is not completely uniform, and has the disadvantages of welding deformation, unsightly welding bumps, and long grinding and processing time

Welding is a rigid connection, there is a hidden danger of force cracking

When the screw connection method is used, holes are drilled in the inner and outer frames of the grille, and the inner and outer frame profiles, the end milling grille and the right-angle grille are directly connected with two screws. The conventional method is to separate the outer frame from the inner frame and use an electric drill Drilling, resulting in inaccurate hole positions, the threaded holes of the inner and outer frames are not on the same center line, the position difference is large, and the deflection and eccentricity are easy to occur when the screws are fastened

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