Junction box upper surface punching mold

Abstract

The invention provides a junction box upper surface punching mold which comprises an upper template, a male mold fixing plate, a guide column, a punching male mold I, a screw I, a mold handle, a punching male mold II, a screw II, a lower template, a screw III, a screw IV, a female mold, a discharging plate, an eraser and a positioning plate. The male mold fixing plate is fixed to the lower portion of the upper template through the screw II, the mold handle is installed on the upper portion of the upper template, the lower portion of the upper template is respectively connected with the upper end of the guide column, the upper portion of the punching male mold I and the upper end of the punching male mold II, the punching male mold I and the punching male mold II penetrate through the male mold fixing plate, the guide column is coaxially matched with the positioning plate and a guide hole in the female mold in a sliding mode, the positioning plate is located above the female mold and is sequentially connected with the female mold and the lower template from top to bottom through the screw IV, the positioning plate is arranged on the outer side of the discharging plate in a sleeved mode, one end of the screw I is connected with the upper template, and the other end of the screw I penetrates through the eraser and is inserted into the discharging plate. The edge of a hole punched through the punching mold is free of burrs, and the surface of the hole is smooth.

Description

technical field [0001] The invention relates to the production of mechanical workpieces, in particular to a punching die for the upper surface of a junction box. Background technique [0002] The junction box produced by our factory needs to be punched on the upper surface of the junction box material plate processed by blanking, stretching and edge trimming. Using the existing punching die and technology, the edge of the punched hole is prone to burrs, and the surface becomes rough due to the impact; long-term punching will cause the punch edge to be worn, and when the wear degree is large, it will also cause The workpiece produced has burrs and the surface smoothness is reduced. In order to ensure product quality, the cutting edge of the punch needs to be flat ground and sharpened, which increases the work intensity of the workers, loses production time, and reduces Work efficiency increases business costs. Contents of the invention [0003] In order to solve the above...

AI Technical Summary

Problems solved by technology

Using the existing punching die and technology, the edge of the punched hole is prone to burrs, and the surface becomes rough due to the impact; long-term punching will cause the edge of the punch to be worn, and when the degree of wear is large, it will also cause The workpiece produced has burrs and the surface smoothness is reduced. In order to ensure product quality, the cutting edge of the punch needs to be flat ground and sharpened, which increases the work intensity of the workers, loses production time, and reduces work efficiency, increased business costs

Images