Pipe push insert structure

Abstract

The invention relates to the technical field of car lamps and injection molds, in particular to a pipe push insert structure. The pipe push insert structure is composed of a moving die frame, a pipe push insert (1), socket head fixing screws (2) and copper blocking blocks (3) and is characterized in that counter bores are formed in the pipe push insert (1), the socket head fixing screws (2) pass through the counter bores to fix the pipe push insert (1) to the moving die frame, the counter bores are provided with steps, and the counter holes are sealed by the copper blocking blocks (3). According to the pipe push insert structure, the problem of flanges of fixing screw columns of lamp housing products can be solved, the eccentricity problem of fixing screw holes of the lamp housing products can be solved, and later perfection and maintenance of a mould are facilitated.

Description

technical field [0001] The invention relates to the technical field of vehicle lights and injection molds, in particular to a push tube insert structure. technical background [0002] Because there are reinforcing ribs around the mounting screw holes on the car lamp housing products, it is more laborious to eject the product after injection molding. If the mold is not handled properly here, the product will appear white and the reinforcing ribs will break. , screw column deformation and other poor molding phenomena, so in order to ensure smooth ejection of the product, the general loading screw hole is designed as a push tube structure on the mold structure. The traditional loading screw hole push tube processing technology mainly adopts the following two methods: 1) First drill the push tube hole, and then carve and process the front forming part of the loading screw hole; 2) CNC engrave and process the front forming part of the loading screw hole first, and then drill and ...

AI Technical Summary

Problems solved by technology

There are two disadvantages: first, if the standard of engraving first and the standard of drilling machine processing are inconsistent, deviations will easily occur, resulting in eccentric screw holes, and the screw holes of the car during production and assembly will be cracked by screws; During the drilling process, if the drill bit is installed off-position, the hole diameter of the drilling process is larger than the outer diameter of the push tube, resulting in flashing at the mouth of the loading screw during injection molding.

The above defects will make it difficult to assemble such products during assembly, waste manpower and working hours, and increase product costs

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