A desktop screw tightening machine

Abstract

The invention discloses a table type screw fastening machine. The table type screw fastening machine comprises a case shell, a workpiece carrying table, a fastening unit, a support, a positioning unit and a screw storage unit, wherein the workpiece carrying table and the screw storage unit are arranged at the bottom inside the case shell, the fastening unit is arranged on the support which is movably mounted in and connected to the inner top of the case shell and driven by the positioning unit, the fastening unit travels between the workpiece carrying table and the screw storage unit and is particularly a fastening gun provided with a vacuum absorption mechanism, the vacuum absorption mechanism comprises a vacuum absorption tube arranged on the fastening gun, a vacuum air joint and an air pump arranged in the case shell, and the vacuum air joint is connected with the air pump. The fastening gun with the vacuum absorption mechanism is adopted to replace a fastening gun with a conventional magnetic cutter head, so that the magnetic cutter head is avoided from damaging components and parts of electronic products; the table type screw fastening machine mainly aims at short and small screws, so that the technical difficulty in assembling the short and small screws resulted from inconvenience in blowing and conveying technologies is solved.

Description

technical field [0001] The invention relates to a screw tightening machine, in particular to a desktop screw tightening machine used in the mobile phone and tablet computer industries. Background technique [0002] In assembly automation technology, tightening is one of the most widely used processes. Fast, effective, reliable, and miniaturized tightening equipment has become an increasingly popular type of machine for many industrial manufacturers. For the existing tightening process for mobile phones and tablet computers, the tightening methods can be roughly divided into two categories, namely manual tightening and automatic machine tightening. [0003] In the tightening of mobile phones or tablet computers, due to the small torque required, it is difficult to achieve the specified torque requirements by manual control, and it is also difficult to ensure that the screws can enter the screw holes vertically through manual positioning, which will directly affect the assemb...

AI Technical Summary

Problems solved by technology

[0003] In the tightening of mobile phones or tablet computers, due to the small torque required, it is difficult to achieve the specified torque requirements by manual control, and it is also difficult to ensure that the screw can enter the screw hole vertically through manual positioning, which will directly affect the assembly quality

[0004] In the prior art, it is the most efficient and convenient technology to realize screw feeding by blowing. However, most of the screws used on mobile phones or tablet computers are short and small, which limits the application of blowing technology in principle. Therefore, the screw tightening in the mobile phone and tablet computer industry generally uses adsorption technology

It is the simplest way to design the screw-tightened cutter head as a magnetic cutter head, but the components in electronic products are easily damaged by magnetism and affect the service life

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