Horizontal cold press chamber aluminum alloy die-casting mold with elastic expansion ring structure core

Abstract

The invention discloses a horizontal-type cold compression chamber aluminum alloy die casting mold with an elastic piston ring structure core. According to the horizontal-type cold compression chamber aluminum alloy die casting mold, axial movement and acting force generated during opening and closing of a horizontal-type cold compression chamber die casting machine hydraulic cylinder are converted into radial acting force and radial extension and contraction via an elastic piston ring, a circular truncated cone-shaped tire expender, a return spring and other components, so that the purposes of expanding or releasing an insert and positioning are achieved; and when the technical mold is used for die casting, the preset position precision of threaded insert die casting can reach up to the precision of GB / T1184-1996 Machining Geometrical Tolerance Class 8, and coaxiality precision of new energy electric vehicle hub motor outer rotor shell magnetic conductive ring insert die casting can reach up to the precision of GB / T1184-1996 Machining Geometrical Tolerance Class 9, the axial offset is controlled within 0.2mm, and precise positioning of insert die casting is realized.

Description

technical field [0001] The invention relates to a die-casting mold, in particular to a horizontal cold-press chamber aluminum alloy die-casting mold with an elastic expansion ring structure core. Background technique [0002] The core of the traditional horizontal cold-press chamber aluminum alloy die-casting mold is a solid cylinder or a solid cylinder. When the die-casting part has an insert, the inner diameter of the insert is too small to fit into the mold core. The inner diameter of the insert is the same as that of the mold. If the core outer diameter gap is too large, its position accuracy is poor. [0003] When the performance level of the threaded insert is required to be above 8.8, according to the GB / T3098.1-2000 national standard, the insert must be quenched and tempered with low or medium carbon alloy steel or quenched and tempered with medium carbon steel to meet the requirements, while It is very difficult to machine the inserts treated by quenching and tempe...

AI Technical Summary

Problems solved by technology

[0002] The core of the traditional horizontal cold-press chamber aluminum alloy die-casting mold is a solid cylinder or a solid cylinder. When the die-casting part has an insert, the inner diameter of the insert is too small to fit into the mold core. The inner diameter of the insert is the same as that of the mold. The core outer diameter gap is too large and its position accuracy is poor

[0003] When the performance level of the threaded insert is required to be above 8.8, according to the GB / T3098.1-2000 national standard, the insert must be quenched and tempered with low or medium carbon alloy steel or quenched and tempered with medium carbon steel to meet the requirements, while It is very difficult to machine the inserts treated by quenching and tempering process, so the preferred process is to directly preset the finished threaded inserts during die-casting, and then no longer process them. The precision cannot reach the level of machining precision

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