An aluminum plate column hole manufacturing device

Abstract

The invention discloses an aluminum plate column hole manufacturing device. The aluminum plate column hole manufacturing device is characterized by comprising an upper pressure block, a lower pressureblock, a first-pass punch, a second-pass punch, a first-pass ejector rod and a second-pass ejector rod; a pressure applying driving part is connected between the upper pressure block and / or the lowerpressure block; opposite coaxial upper punched hole and lower punched hole are separately formed in the upper and lower pressure blocks; the diameter of the upper punched hole is smaller than that ofthe lower punched hole; the first-pass punch and the second-pass punch are punches which can be in pluggable clearance fit with the upper punched hole in equal diameter, and the first-pass ejector rod and the second-pass ejector rod are ejector rods which can be in pluggable clearance fit with the lower punched hole in equal diameter. The end of a hole formed by the tool is unlikely to crack, andthe effective length of manufacturing the thread is long, and the aluminum plate column hole manufacturing device can be used for connecting a high reliability structure.

Description

technical field [0001] The invention relates to a device for processing a prefabricated hole for threaded connection of an aluminum plate, in particular to a device for making a column hole of an aluminum plate. 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 an aluminum plate post hole manufacturing device, which is characterized in that it includes an upper pressing block, a lower pad, a first punch, a second punch, a first ejector and a ...

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

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