Automatic assembling device for nozzle closure of small solid rocket engine

Abstract

The invention discloses an automatic assembling device for a nozzle closure of a small solid rocket engine, and belongs to the field of assembly of mechanical parts of initiating explosive devices. The automatic assembling device comprises a bottom plate (1), a closure storage mechanism (2), a double-station closure carrying mechanism (3), an automatic gluing mechanism (4) and a nozzle clamping and limiting mechanism (5), wherein the closure storage mechanism (2) is arranged on the bottom plate (1) and is used for providing the closure for the double-station closure carrying mechanism (3); thedouble-station closure carrying mechanism (3) is used for carrying the closure in the closure storage mechanism (2) to the automatic gluing mechanism (4) for gluing, and carrying the glued closure tothe nozzle clamping and limiting mechanism (5) for closure bonding and compaction; the automatic gluing mechanism (4) is used for automatically gluing the outer conical surface of the closure; and the nozzle clamping and limiting mechanism (5) is used for enabling a nozzle mouth to be vertically clamped and positioned upwards, and meanwhile, is matched with the double-station closure carrying mechanism (3) to vertically put the glued closure into the inner conical surface of the nozzle to be bonded and compacted.

Description

technical field [0001] The invention relates to an automatic assembling device for a small-sized solid rocket motor nozzle plugging cover, which belongs to the field of assembling mechanical parts of pyrotechnics. Background technique [0002] The plug is an important part of the small solid rocket motor. It plays the role of sealing and moisture-proof during storage and flight; when the small solid rocket motor is ignited, it plays the role of quickly establishing the ignition pressure, shortening the ignition delay time and improving the ignition reliability. [0003] The blocking cover is a conical single-layer aluminum alloy thin-walled structure, and the outer conical surface is painted with epoxy resin glue to cooperate with the inner conical surface of the nozzle. The sealing performance and pressure bearing capacity after pasting are the key to assembly control. If the seal of the plug is poor, the internal charge will be damp. In addition, the low pressure bearing ...

AI Technical Summary

Problems solved by technology

At present, glue brushing and pasting are performed manually, which has the following problems: 1. The amount of manual glue brushing and the consistency of the pressure of the compacted plug during pasting are difficult to control, resulting in difficulty in the consistency of the sealing performance and pressure bearing capacity of the plug after pasting control

2. The nozzle hole is deep and the diameter of the mouth is small, which makes manual pasting difficult. It needs auxiliary tooling to complete the pasting, and the assembly efficiency is low.

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