CN212684450U

CN212684450U - Glue injection mold for pressure switch of aircraft generator

Info

Publication number: CN212684450U
Application number: CN202020911024.3U
Authority: CN
Inventors: 李浩岩
Original assignee: Aircraft Maintenance And Engineering Corp
Current assignee: Aircraft Maintenance And Engineering Corp
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-03-12
Anticipated expiration: 2030-05-26

Abstract

An injection mold for a pressure switch of an aircraft generator. The problem of current aircraft generator pressure switch injecting glue time sealed effect poor, inefficiency is mainly solved. The method is characterized in that: the die bracket (1) is provided with a plurality of die supporting grooves (2), the die supporting grooves (2) are internally provided with a die, the die is integrally formed by two symmetrical die units (3), and the upper part of each die unit (3) is connected with a pressing block (4) through a bolt. This aircraft generator pressure switch injecting glue mould has the moulding function of self-sealing, and fixed back is sealed effectual, and can realize that six pressure switches are sealed simultaneously, and work efficiency is high.

Description

Glue injection mold for pressure switch of aircraft generator

Technical Field

The utility model relates to an aerospace field, specific aircraft generator pressure switch injecting glue mould that says so.

Background

In the repair of aircraft generators, it is necessary to repair the pressure electric switches inside them. The switch is used for detecting the internal stamping pressure of the aircraft generators of various types, and when the pressure reaches a threshold value, the switch is switched from a normally closed position to an open position, and the aircraft GCU receives a signal and determines that the lubricating oil state of the aircraft generator is normal. Whether the switch is effective directly affects whether the aircraft is off the aircraft generator in the air, and when the switch is closed as the engine is running, the pilot must off the aircraft generator and must replace the aircraft generator after arriving at the ground. Therefore, the good and bad of the switch directly influences the power supply state of the main power supply when the airplane flies.

The pressure switch consists of an electric switch, a shell, a lead, a sealant and a fixing device, the sealant is required to be coated on the pressure switch after the electric switch is replaced, and the liquid sealant is difficult to mold during coating due to irregular appearance and easily flows to a thread part through an opening, so that an effective sealing effect is difficult to form after the liquid sealant is solidified for 24 hours; in addition, in the actual production, only one pressure switch can be sealed at a time, and the curing is required for 24 hours, so that the efficiency is very low.

SUMMERY OF THE UTILITY MODEL

Poor, the inefficiency not enough of sealed effect when overcoming current aircraft generator pressure switch injecting glue, the utility model provides an aircraft generator pressure switch injecting glue mould, this aircraft generator pressure switch injecting glue mould have the moulding function of self-sealing, and fixed back is sealed effectual, and can realize that six pressure switches are sealed simultaneously, and work efficiency is high.

The technical scheme of the utility model is that: the utility model provides an aircraft generator pressure switch injecting glue mould, includes the mould bracket, it has a plurality of mould to hold in the palm the groove to open on the mould bracket, and the mould holds in the palm the inslot and has the mould wholly, and the mould wholly comprises two symmetrical mould monomers, and every mould monomer upper portion all has the briquetting through bolted connection.

The inner surface of the pressing block is an arc surface, and the diameter of a circle formed on the inner surface of the pressing block is smaller than the inner diameter of the single die.

The utility model discloses following beneficial effect has: by adopting the scheme, the pressure switch glue injection mold has the capability of automatic sealing and molding in combination with the appearance and the sealing requirements of the pressure switch, and in the sealing process, the liquid sealant is kept in the sealing area as required, so that no leakage exists, no sealing failure exists after curing, and the sealing effect is good; the six pressure switches can be sealed simultaneously and can be completed in only 24 hours, so that the construction efficiency is greatly improved; the manufacturing cost is about 5000 yuan RMB, the cost is low, and the rework rate is basically 0.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure, 1-mould bracket, 2-mould bracket, 3-mould single body and 4-briquetting.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

shown by figure 1, an aircraft generator pressure switch injecting glue mould, including

mould bracket

1, 1 bottom of mould bracket is equipped with 4 landing legs, and it has a plurality of mould to hold in the palm groove 2 to open on the upper portion plane, and a plurality of mould holds in the palm groove 2 and can carry out the injecting glue to pressure switch simultaneously, for raising the efficiency, here adopts 6 mould to hold in the palm the groove. The die bracket 2 is internally provided with a die whole which is composed of two symmetrical semi-circular die single bodies 3, the inner surfaces of the die single bodies 3 are manufactured according to the shape of a pressure switch shell, and the uniform gap between the die single bodies and the pressure switch shell is ensured. The inner surface of the die monomer 3 is sprayed with a dry die lubricant, so that the surface of the die has low adhesive force, and a high-temperature resistant release agent is selected, so that the die can be conveniently released after the sealant is cured. The upper part of each die single body 3 is connected with a pressing block 4 through a bolt, the inner surface of each pressing block 4 is an arc surface, and the diameter of a circle formed by the inner surface of each pressing block 4 is smaller than the inner diameter of each die single body 3, namely, the inside of each pressing block 4 protrudes out of each die single body 3.

When the pressure switch is coated with the sealant, the pressure switch is firstly placed in the pair of die units 3, the pressing block 4 is pressed on the lug bosses on the outer surface of the switch, then the die is integrally placed in the die bracket 2, and the bolt on the pressing block 4 is screwed, so that the pressing block 4 presses the pressure switch. At the moment, sealant can be coated on the pressure switch, after 24 hours, the sealant is cured, the whole die and the pressure switch are taken out from the die bracket 2 together, and the pressure switch can be taken down by unscrewing the bolt on the pressing block 4.

Claims

1. The utility model provides an aircraft generator pressure switch injecting glue mould, includes mould bracket (1), its characterized in that: the die bracket (1) is provided with a plurality of die supporting grooves (2), the die supporting grooves (2) are internally provided with a die, the die is integrally formed by two symmetrical die units (3), and the upper part of each die unit (3) is connected with a pressing block (4) through a bolt.

2. The aircraft generator pressure switch glue injection mold of claim 1, wherein: the inner surface of the pressing block (4) is an arc surface, and the diameter of a circle formed on the inner surface of the pressing block (4) is smaller than the inner diameter of the die single body (3).