Threaded support post for circuit boards

Abstract

The invention relates to a threaded support post for circuit boards, which comprises a columnar suction portion and a columnar surface-mounting portion extending from one end of the suction portion axially. The diameter of the surface-mounting portion is smaller than that of the suction portion, a first thread hole is axially inwards arranged on the end face of the threaded support post with the suction portion, a second thread hole is axially inwards arranged on the end face of the threaded support post with the surface-mounting portion, and the first thread hole and the second thread hole extend to the middle of the threaded support post but are disconnected with each other. The thread holes of the threaded support post are blind holes, the surface-mounting portion can be inserted into a positioning hole preset on a circuit board after the suction portion is sucked by a chip mounter, so that surface mounting according to the SMT (surface mounted technology) can be completed. Further, the process of capping a cover plate on the threaded support post in advance and the process of removing the cover plate at the post stage can be omitted so that the trouble in capping and removing the cover plate in the prior art can be overcome and production efficiency can be increased while damages to the circuit board and the threaded support post, caused when removing the cover plate, can be avoided.

Description

technical field [0001] The invention relates to a threaded support column for a circuit board suitable for mounting by SMT technology. Background technique [0002] SMT is the abbreviation of Surface Mounted Technology or Surface Mount Technology. It is the most popular technology or process in the electronic assembly industry. specified location. SMT technology has the advantages of fast placement and accurate positioning. [0003] The circuit board is generally provided with a threaded support column, so that the opposite object such as another circuit board above can be separated from the circuit board and combined with screws. These threaded support posts are attached to the circuit board by SMT technology. The threaded support column for circuit boards in the prior art is generally provided with a threaded through hole penetrating up and down in the middle of the column. In the SMT mounting process, firstly, a cover plate that covers the through hole must be install...

AI Technical Summary

Problems solved by technology

In the SMT mounting process, firstly, a cover plate that covers the through hole must be installed at one end of the cylinder of the threaded support column. After the mounting is completed, another circuit board needs to be threaded tightly with the two circuit boards through the studs. At the same time, it is necessary to manually remove the cover plate, which is not only time-consuming and labor-intensive, but also easily damages the studs and the circuit board.

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