CN201482908U - Blind rivet mandrel splitter - Google Patents

Abstract

The utility model belongs to the riveting assembly technology and relates to a splitter for a core rod of a blind rivet. It is a cylindrical shaft, near the left end of the resolver, there is an annular limit boss [2] protruding from the cylindrical shaft, and there is a spherical socket [4] on the right end of the resolver, the ball of the spherical socket The radius is equal to the ball radius of the disassembled blind rivet head, and there is an axial blind hole [3] in the center of the spherical socket [4]. The utility model can be used to take out the core rod of the blind rivet conveniently, avoiding damage and deformation of the parts, and improving the decomposition efficiency.

Description

Blind rivet mandrel splitter

technical field

The utility model belongs to the riveting assembly technology and relates to a splitter for a core rod of a blind rivet.

Background technique

At present, the disassembly method of blind rivets commonly used in the international and domestic aviation industry is: use a drill to drill out part of the core rod of the blind rivet; take out the locking ring; flush out the rivet core rod; drill off the rivet shaft. The key to this process is the first step. The process of drilling the rivet mandrel is extremely difficult to control, and it is easy to cause damage to parts due to running drilling, and the decomposition efficiency is low. Especially in the disassembly process of thin-plate titanium alloy parts, it is easy to cause deformation of the parts when the punch is used to punch the nail rod, which will cause the rivet holes to become larger and out of tolerance.

Contents of the invention

The purpose of this utility model is: to propose a disassembler which is convenient to take out the mandrel of the blind rivet, so as to avoid damage to the parts and cause the deformation of the parts, and improve the disassembly efficiency.

The technical scheme of the utility model is: a decomposer for a blind rivet mandrel, which is characterized in that it is a cylindrical shaft, and there is an annular limiting boss protruding from the cylindrical shaft near the left end of the decomposer. On the left side of the table is the impact rod matched with the rivet gun. There is a spherical socket on the right end surface of the disassembler. Axial blind hole, the diameter of the blind hole is larger than the diameter of the disassembled blind rivet mandrel, and the length of the blind hole is not less than 3mm.

The utility model has the advantages that the core rod of the blind rivet can be conveniently taken out by using the utility model, avoiding damage and deformation of the parts, and improving the decomposition efficiency. Tests have proved that the decomposition efficiency of the utility model is increased by more than 3 times, and the removal quality of blind rivets is effectively guaranteed.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

Below the utility model is described in further detail. Referring to Fig. 1, the splitter of blind rivet mandrel is characterized in that it is a cylindrical shaft, and there is an annular limit boss 2 protruding from the cylindrical shaft near the left end of the splitter, and the limit boss 2 On the left is the impact rod 1 matched with the rivet gun. There is a spherical socket 4 on the right end surface of the resolver. The spherical radius of the spherical socket is equal to the spherical radius of the decomposed blind rivet head. An axial blind hole 3, the diameter of which is larger than the diameter of the disassembled blind rivet mandrel, and the length of the blind hole is not less than 3mm. The using method of the present utility model is:

Choose different splitters according to the diameter of the blind rivets and install them on the riveting gun. Put the ball socket part of the disassembler close to the nail head of the blind rivet, use the baffle on the other side to withstand the rivet pier head, lightly start the rivet gun to impact, and the rivet mandrel will leak out in the direction of the blind hole 3. Remove the locking ring on the core rod of the blind rivet, and then use a punch to punch out the core rod of the blind rivet. Finally, use a pneumatic drill to break down the remaining rivet body.

Claims (1)

1. Blind rivet mandrel splitter, characterized in that it is a cylindrical shaft, near the left end of the splitter, there is an annular limit boss [2] protruding from the cylindrical shaft, the limit boss [2] ] is the impact rod [1] matched with the rivet gun, and there is a spherical socket [4] on the right end surface of the disassembler. There is an axial blind hole [3] in the center of the spherical socket [4]. The diameter of the blind hole is greater than the diameter of the decomposed blind rivet mandrel, and the length of the blind hole is not less than 3mm.

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