Punching missing prevention detection device for small hole punching of punching die

Abstract

The invention discloses a punching missing prevention detection device for small hole punching of a punching die. The punching missing prevention detection device is mounted on punching equipment. The punching equipment comprises an upper die, a lower die and a control system. The detection device comprises an air pressure detection and feedback system, a first air hole formed in the upper die, a second air hole formed in the lower die and a third air hole formed in the lower die. The first air hole, a small hole in a punching part, the second air hole and the third air hole are communicated in sequence to form an airflow channel. The airflow channel communicates with air outside the upper die and the air pressure detection and feedback system. The air pressure detection and feedback system can detect the air pressure in the airflow channel and can feed air pressure data back to the control system. According to the punching missing prevention detection device, the technical problem about small hole punching missing detection is solved, the production efficiency and the product percent of pass are increased, the production cost is effectively reduced, and raw material waste is reduced.

Description

technical field [0001] The invention relates to the technology related to stamping dies, in particular to a leak-proof detection device for punching small holes in the stamping die. Background technique [0002] When punching a small hole in a stamping die, because the punch is weak, it is easy to be damaged, and missed punching often occurs. In the case of unavoidable damage to the punch, it is very important to find out that the hole is not punched out in time, that is, how to detect the missed punched small hole . A small hole usually refers to a hole with a diameter of less than 1.5mm. Because the hole diameter is too small, the traditional mechanical sensor cannot be used. Because some oil is used in stamping production, the sensitivity of the photoelectric sensor will be greatly affected, and misjudgment often occurs. Contents of the invention [0003] In order to solve the above technical problems, the present invention proposes a punching die punching small hole l...

AI Technical Summary

Problems solved by technology

Small holes usually refer to holes with a diameter of less than 1.5mm. Because the hole diameter is too small, traditional mechanical sensors cannot be used. Since some oil products are needed in stamping production, the sensitivity of photoelectric sensors will be greatly affected, and misjudgment often occurs.

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