Improved oil-gas mixing press punch used for lead installation

Abstract

The invention discloses an oil-gas mixing press punch used for cooling fin lead installation. The punch comprises an oil-gas mixing press body, a pressure switch and a relay, wherein the oil-gas mixing press body comprises a base, a line ball buckle upper die, a cylinder, a cylinder switch and a manifold pressure gauge; the pressure switch is installed on an admission line; the relay is electrically connected with the pressure switch and the cylinder switch and is used for controlling the pressure switch and the cylinder switch to be switched on and off; the expansion link of the cylinder is fixedly connected with the line ball buckle upper die. According to the punch disclosed by the invention, the line ball buckle upper die is downwards pressed after the pressure reaches a preset value to guarantee that pressure is stable each time. Because the pressure is controllable, the pressure is set according to the metal material characteristic of the cooling fin, the lead can just be pressed into a cooling fin trough according to the requirement without damaging the cooling fin, and therefore, a stop block is omitted. Compared with the traditional punch, the punch disclosed by the invention has the advantages of stable pressure and uniform lead pressing-in degree, inferior-quality products of which the cooling fins are damaged or the leads are not pressed in are reduced, and the production quality is improved.

Description

[0001] technical field [0002] The invention relates to the field of electronic product manufacturing equipment, in particular to an oil-air mixing press punch used for heat sinks. [0003] Background technique [0004] When installing the lead wires of the heat sink, it is usually necessary to use an oil-air hybrid press punch or an electric punch; among them, the oil-air hybrid press punch is a more commonly used lead wire installation equipment. However, there are some deficiencies in the currently used oil-gas hybrid press punching machine. First, when the air pressure is relatively sufficient, the pressure will be relatively strong, and the lead wire is too fixed, so that the rotation flexibility of the lead wire in the heat sink is not enough. Use, and, in the case of excessive pressure, it will even cause irreversible mechanical damage to the heat sink; however, as the number of uses increases, the air pressure decreases, and its pressure will become weaker, making ...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an oil-gas mixed press punch with an improved structure and capable of ensuring stable pressure in order to solve the problem that the current oil-gas mixed press punch has different pressure strengths and affects the quality of lead wire stamping when the air pressure is unstable.

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