Simple aluminum plate column hole making tool

Abstract

The invention discloses a simple aluminum plate column hole making tool. The simple aluminum plate column hole making tool is characterized by comprising an upper pressing block, a lower cushion block, a first-way punch rod, a second-way punch rod and an ejecting rod; the upper pressing block and / or lower cushion block are / is connected with a pressure application drive part, the upper pressing block and the lower cushion block are provided with an upper punch hole and a lower ejecting hole which are oppositely coaxial, the diameter of the upper punch hole is larger than the diameter of the lower ejecting hole, the upper edge of the lower ejecting hole is chamfered, the diameter of the chamfered outer edge is larger than that of the upper pujnching hole, the lower of the lower ejecting holeis provided with an annular boss, the upper of the ejecting rod penetrates into the annular boss, a conical head is arranged on the upper end of the ejecting rod, the front segment of the first-way punch rod is equal to the part, inserted in the annular boss, of the ejecting rod in diameter, a conical sinking part is arranged at the front end of the first-way punch rod, the front segment of the second-way punch rod is equal to the part, inserted in the annular boss, of the ejecting rod in diameter, a conical body is arranged at the front end of the second-way punch rod, a conical sinking partis arranged at the front end of the conical body, the made hole end is not prone to cracking, the effective length of the made thread is large, and the tool can be used for high-reliable structural connection.

Description

technical field [0001] The invention relates to a device for processing threaded connection prefabricated holes in aluminum plates, in particular to a simple tool for making column holes in aluminum plates. Background technique [0002] In the machining of aluminum plates, it is often necessary to process holes on the aluminum plate, and then process threads on the holes for connecting blocks of structural parts. The firmness of the connection depends on the quality of the holes and threads. The holes processed by the existing technology are easy to crack. The thread processing length is short and the connection reliability is low. These problems still need to be solved by technology. Contents of the invention [0003] In order to solve the above problems, the present invention provides a simple aluminum column hole manufacturing tool, which is characterized in that it includes an upper pressing block, a lower pad, a first punch, a second punch and a push rod, an upper pre...

AI Technical Summary

Problems solved by technology

[0002] In the machining of aluminum plates, it is often necessary to process holes on the aluminum plate, and then process threads on the holes for connecting blocks of structural parts. The firmness of the connection depends on the quality of the holes and threads. The holes processed by the existing technology are easy to crack. The thread processing length is short and the connection reliability is low. These problems still need to be solved by technology

Images