An auxiliary device for welding aircraft ground power plug

Abstract

The invention provides a welding auxiliary device for a ground power plug of an aircraft, comprising a front bakelite and a rear bakelite, wherein a through hole is formed on the front bakelite, and a groove is formed on the rear bakelite; the plug of the plug is embedded in the groove of the rear bakelite, and the pin passes through the front bakelite from the through hole, so that the end faces of the plug of the plug, except for the welding end face, are all wrapped in a cavity surrounded by the groove and the front bakelite; it can be seen that in the process of welding a welding part to a plug by using the welding auxiliary device of the invention, the non-welding end face of the plug plug is closely fitted with the cavity and no excess solder is generated, and the shape and size of each end face are used to ensure the welding quality of the parts to be welded, and the subsequent installation of the plug welded with the welding part is not affected, while the welding efficiency is also improved.

Description

Technical Field

[0001] The invention belongs to the technical field of aviation cable repair, and in particular relates to an auxiliary device for welding ground power plugs of aircraft. Background Art

[0002] The aircraft ground power supply device is the external power connection port when the aircraft is stationary. It bears a large current and needs to be replaced during aircraft overhaul to meet the use requirements. However, the welding of the pin of the device is currently fixed directly on the vise. After welding, the end faces of the product are prone to weld nodules, which affects the assembly of the product and requires secondary filing and welding, which is inefficient and seriously affects the repair cycle and repair quality.

[0003] When welding on an aircraft, secure the pin in a vise and use a soldering iron to Figure 1 In the circular groove on the A end face of the cube plug part of the middle plug, or Figure 2 Fill the U-shaped groove on the A end face of the cube plug part of the middle plug with solder. During the soldering process, Figure 1 and Figure 2 The A end face of the plug is prone to excess solder. After the soldering is completed, heat the A end face to ensure that the solder in the circular groove or U-shaped groove of the plug is completely melted, and insert the wire that needs to be soldered. During the welding process, because the amount of solder cannot be accurately guaranteed, the excess solder will overflow along the A end face circular groove of the plug cube part and flow to the end faces of the plug parts, affecting assembly.

[0004] Therefore, in order not to affect the assembly of the bolt, a special bolt welding auxiliary device needs to be designed to ensure that the end faces of the bolt parts are smooth and free of excess solder. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a welding auxiliary device for aircraft ground power plugs, which can avoid the generation of excess solder on the end surfaces other than the welding end surfaces of various types of ground power plugs during the welding process.

[0006] An auxiliary device for welding a ground power plug of an aircraft, the plug comprising a pin and a plug, and an end face to be welded is located on the plug, the auxiliary device comprising a front bakelite 1 and a rear bakelite 2;

[0007] The front bakelite 1 is provided with a through hole for the pin to pass through, and the rear bakelite 2 is provided with a groove with the same shape as the plug; after the plug is embedded in the groove, the front bakelite 1 is fixed to the rear bakelite 2, so that the pin passes through the front bakelite 1 through the through hole, and only the end face of the plug to be welded is exposed.

[0008] Furthermore, the material of the front bakelite 1 and the rear bakelite 2 is bakelite.

[0009] Furthermore, the groove on the rear bakelite 2 is a cube structure.

[0010] Furthermore, the through hole on the front bakelite 1 is a round hole.

[0011] Furthermore, the front bakelite 1 and the rear bakelite 2 are both rectangular parallelepiped structures.

[0012] Furthermore, step grooves are provided on two opposite sides of the three-dimensional structure obtained by splicing the front bakelite 1 and the rear bakelite 2 together, and the three-dimensional structure is installed in an external vise through the step grooves.

[0013] Furthermore, the front bakelite 1 and the rear bakelite 2 are connected by screws.

[0014] Furthermore, the through hole is coaxial with the groove.

[0015] Beneficial effects:

[0016] 1. The present invention provides a welding auxiliary device for aircraft ground power plugs, wherein the plug of the plug is embedded in the groove of the rear bakelite, and the pin passes through the front bakelite from the through hole, so that the plug of the plug, except for the welding end face, has other end faces wrapped in the cavity surrounded by the groove and the front bakelite; it can be seen that in the process of welding the welding parts to the plug by using the welding auxiliary device of the present invention, the non-welding end face of the plug plug is tightly fitted with the cavity and no excess solder will be generated, and the shape and size of each end face are used to ensure the welding quality of the parts to be welded, and the subsequent installation of the plug welded with the welding parts is not affected, and the welding efficiency is improved; compared with the original welding process in which the plug is directly fixed to the jaws of the vise, the solder is easily generated on each end face of the plug during the welding process, the heat loss during the welding process is large, and the welding time is long, after welding using the device, the non-welding end faces of the plug are smooth and free of excess solder, the welding speed is fast, and the cycle is short.

[0017] 2. The cubic groove design on the rear bakelite of the present invention can ensure that the groove fits with each end surface of the cubic plug of the pin.

[0018] 3. The central circular perforation design on the front bakelite of the present invention can ensure that the circular hole fits the circumference of the plug pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an existing latch;

[0020] Figure 2 It is a structural schematic diagram of another existing latch;

[0021] Figure 3 A schematic diagram of the structure of an auxiliary device for welding a ground power plug of an aircraft provided by the present invention;

[0022] Figure 4 A perspective view of a welding auxiliary device for aircraft ground power plug provided by the present invention;

[0023] Figure 5 A schematic diagram of the structure of the front bakelite provided by the present invention;

[0024] Figure 6 A schematic diagram of the structure of the rear bakelite provided by the present invention;

[0025] 1-Front bakelite, 2-Back bakelite, 3-Screws. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0027] like Figure 3 and Figure 4 As shown, an auxiliary device for welding an aircraft ground power plug, the plug includes a pin and a plug, and the end surface to be welded is located on the plug, and the auxiliary device includes a front bakelite 1 and a rear bakelite 2;

[0028] like Figure 5 As shown, the front bakelite 1 is a rectangular parallelepiped structure, and a round hole is opened in the middle for the pin to pass through; Figure 6 As shown, the rear bakelite 2 is a rectangular parallelepiped structure, and a groove with the same shape as the plug is opened at a position perpendicular to one of the side surfaces, such as a cube groove or a rectangular parallelepiped groove, so that the welding area on the plug can be placed in the groove; after the plug is embedded in the groove, the front bakelite 1 is fixed to the rear bakelite 2 by screws 3, so that the pin passes through the front bakelite 1 through the through hole, and only the end face to be welded is exposed, and the other sides are all wrapped by the groove and one side of the front bakelite 1. At the same time, step grooves are opened on the two opposite sides of the three-dimensional structure obtained by splicing the front bakelite 1 and the rear bakelite 2, and the three-dimensional structure is installed in the external jaws through the step grooves.

[0029] Optionally, the front bakelite 1 and the rear bakelite 2 are made of bakelite, which has high mechanical strength, good insulation, heat resistance and corrosion resistance. At the same time, by setting different sizes for the through hole on the front bakelite 1 and the groove on the rear bakelite 2, different types of pin welding can be adapted.

[0030] The working principle of the welding auxiliary device of the present invention is described below:

[0031] When welding the ground power plug, first place the cube plug to be welded into the groove of the rear bakelite, and then insert the pin part of the plug into the round hole of the front bakelite, so that the front bakelite and the rear bakelite fit tightly, and connect them with screws to ensure that the end faces of the pin fit tightly with the module. At the same time, the coaxial through hole and the groove ensure that the front and rear bakelite will not produce axial or radial movement during the welding process; after fixing the pin, put the three-dimensional structure composed of the front and rear modules into a vise and clamp it, use a soldering iron to add solder from the welding hole on the exposed end face to be welded and complete the welding of the wire and the plug.

[0032] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may certainly make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A welding auxiliary device for an aircraft ground power plug, wherein the plug comprises a pin and a plug, and the end face to be welded is located on the plug, characterized in that: The auxiliary device comprises a front bakelite (1) and a rear bakelite (2); The front bakelite (1) is provided with a through hole for the insertion pin to pass through, and the rear bakelite (2) is provided with a groove having the same shape as the plug; after the plug is embedded in the groove, the front bakelite (1) is fixed to the rear bakelite (2), so that the insertion pin passes through the front bakelite (1) through the through hole, and only the end face of the plug to be welded is exposed; The front bakelite (1) and the rear bakelite (2) are made of bakelite; The front bakelite (1) and the rear bakelite (2) are connected by screws; step grooves are provided on two opposite sides of the three-dimensional structure obtained by splicing the front bakelite (1) and the rear bakelite (2), and the three-dimensional structure is installed in an external vise through the step grooves.

2. The auxiliary device for welding the ground power plug of an aircraft as claimed in claim 1, characterized in that: The groove on the rear bakelite (2) is a cube structure.

3. The auxiliary device for welding the ground power plug of an aircraft as claimed in claim 1, characterized in that: The through hole on the front bakelite (1) is a round hole.

4. The auxiliary device for welding the ground power plug of an aircraft as claimed in claim 1, characterized in that: The front bakelite (1) and the rear bakelite (2) are both rectangular parallelepiped structures.

5. The auxiliary device for welding the ground power plug of an aircraft as claimed in claim 1, characterized in that: The through hole is coaxial with the groove.

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