Pressure spot welding tooling and method for sunken type explosive-loading cavity sealing cap

Abstract

The invention discloses a pressure spot welding tooling and method for a sunken type explosive-loading cavity sealing cap and solves the problem that human negligence factors cannot be overcome with an existing spot welding method. A conical pressing block (5) is pressed on the sealing cap (4), a cylindrical groove (11) is arranged in the cone bottom surface of the conical pressing block (5), a skirt ring (8) arranged on a cone bottom excircle (10) of the conical pressing block (5) is arranged in a sealing-cap mounting step hole (3), 16 laser-welding and spot-welding grooved notches (9) are arranged on the skirt ring (8) with evenly-spaced radian along the skirt ring, the distance between groove bottom of the laser-welding and spot-welding grooved notches (9) and the cone bottom excircle (10) is 1.5mm, and the distance between the excircle of the skirt ring (8) and the stepped vertical wall of the sealing-cap mounting step hole (3) is 0.5mm. The pressure spot welding tooling is simplein structure and easy in process operation.

Description

technical field [0001] The invention relates to a welding tool, in particular to a compression laser welding tool and a compression laser welding method for a sunken medicine cavity sealing cover in a drug cartridge. Background technique [0002] The blasting valve is the key equipment of nuclear power technology. Its basic working principle is: through the remote control of the signal source, the black powder in the cartridge is ignited to generate high-temperature and high-pressure gas. It accelerates to a certain speed, cuts off the blind pipe of the cooling system, and introduces the coolant. It is the key equipment used to cool the reactor and prevent nuclear proliferation under the accident conditions of the nuclear power plant. The cartridge is the core component of the blasting valve. It must be stored for a long time in the harsh environment of high temperature, high humidity and nuclear radiation of the reactor without deteriorating the internal gunpowder. In this...

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Problems solved by technology

[0003] The present invention provides a kind of tooling and method for pressing the spot welding of the sealing cover of the medicine-carrying medicine chamber which sinks in the medicine cartridge and solves the problem that the existing method of controlling the welding spot in the process of spot-welding the medicine-carrying medicine cartridge seal plate cannot overcome the factor of human negligence And the technical problem that it is difficult to observe and detect the positioning of the sealing cover before spot welding

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