Punching die structure of side face side wall hole

Abstract

The invention provides a punching die structure of a side face side wall hole. The punching die structure comprises a male die fixed block and a female die, the upper end of the male die fixed block is provided with a die handle, and is connected with the bottom of the upper end of a driving mechanism, the lower end side face of the male die fixed block is connected with a male die, a positioninggroove used for positioning the outer side face of a shell part is formed in the upper end face of the female die, material leaking large square holes are formed in the bottom of the positioning groove and the side face of the female die, guide positioning grooves are formed in the two sides of a concave hole, a protrusion is arranged on the lower end face of a positioning discharging plate, the protrusion of the positioning discharging plate corresponds to the positioning groove of the female die, a gap is formed, the gap forms the shell part inner and outer cavity shape, the punching manneris novel, the die structure design is reasonable and ingenious, through the production practice, the punching quality and precision are high, it is ensured that the inner and outer dual face punchingedges of the shell part are smooth, flat and free of burrs, and quality needs of part practical production can be met.

Description

technical field [0001] The invention relates to a punching die structure for side wall holes, and belongs to the technical field of punching die design and manufacture. Background technique [0002] For shell parts punching, the traditional design concept of the widely used punching die is to set the die inside the shell, and the punch punches from top to bottom into the inside of the die for punching. When the square hole is located on the side wall of the workpiece and one side of the hole coincides with the side wall, the die is limited by the inner surface of the shell and cannot form an effective shearing edge with the punch, resulting in the overlapping surface of the hole and the side wall in the punching process. Under the action of punching force, it can only be torn into shape. There are very obvious burrs and flanging on this surface, and it is uneven, and the surface quality is extremely poor, which directly causes the parts to be unqualified and scrapped. [00...

AI Technical Summary

Problems solved by technology

Although the problem of uneven side walls of square holes has been solved, in actual production, due to the many processing procedures and long cycle times of square holes, it takes at least 40 minutes to process one piece, which also has problems such as low efficiency and high processing costs.

Images