Laser welding process of casing and bearing sleeve of mobile phone motor stator assembly

Abstract

The invention discloses a laser welding process for a shell and a bearing bush of a mobile phone motor stator component. The laser welding process includes the steps of: (1), assembling the mobile phone motor stator component on a transfer mould bar prior to placing the transfer mould bar on a working platform of a laser welding machine; and (2), welding a matching end face between the shell and the bearing bush by the laser welding machine with output frequency of 1-100Hz and a welding speed of 10-13mm / s. By the aid of the laser welding machine with the output frequency of 1-100Hz, when welded, the shell and the bearing bush in a welding area are melt completely and instantly under the action of high temperature of laser, so that residual stress is small, and welding points are solid; problems of inconformity of appearance of the welding points and insufficient weld bonding force are avoided; and concentricity of stators is well-guaranteed.

Description

technical field [0001] The invention belongs to the technical field of laser welding, and in particular relates to a laser welding process for a casing and a bearing sleeve of a motor stator assembly of a mobile phone. Background technique [0002] The existing mobile phone vibrating motor stator assembly casing and bearing sleeve are generally bonded and connected by using glue. Although the use of adhesive glue can meet the connection and fixing requirements between the casing and the bearing sleeve to a certain extent, there are still The following deficiencies: [0003] 1. The viscosity of the adhesive glue is insufficient, resulting in insufficient adhesion between the casing and the bearing sleeve, and it is easy to fall off; [0004] 2. After a long time of use, the adhesive glue will deteriorate, resulting in a decrease in the adhesive force of the adhesive glue or loss of adhesive force, reducing the service life of the vibration motor of the mobile phone; [0005...

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Problems solved by technology

[0003] 1. The viscosity of the adhesive glue is insufficient, resulting in insufficient adhesion between the casing and the bearing sleeve, and it is easy to fall off;

[0004] 2. After a long time of use, the adhesive glue will deteriorate, resulting in a decrease in the adhesive force of the adhesive glue or loss of adhesive force, reducing the service life of the vibration motor of the mobile phone;

[0005] 3. In the process of applying adhesive glue between the casing and the bearing sleeve, because the adhesive glue is difficult to apply evenly, it is difficult to guarantee the mechanical strength between the casing and the bearing sleeve, and the failure rate of the product increases;

[0006] 4. Since the bonding glue cannot withstand high temperature, when the stator assembly is used on an SMT motor, the temperature of reflow soldering will affect the reliability of the connection between the casing and the bearing sleeve

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