Punching die head connecting device convenient to replace

Abstract

The invention belongs to the technical field of punching forming dies, and particularly relates to a punching die head connecting device convenient to replace. The punching die head connecting devicecomprises a lower die, and the lower die is fixedly connected with a punching machine operation table. An upper die is arranged at the top of the lower die, and a puncher pin is in sliding connectionin a through hole formed in the middle of the upper die. A conic head is arranged at the top of the puncher pin, and a limiting ring is fixedly connected to the position, at the bottom of the head, ofthe puncher pin. A connecting rod fixedly connected with a punching machine drive part is arranged at the top of the puncher pin, and a conic groove cooperating with the head is formed at the bottomof the connecting rod. A set of grooves is evenly distributed on the circumference of the bottom of the connecting rod, press rods are arranged in the grooves, and the middles of the press rods are hinged to the side walls of the grooves through rotating pins. Arc clamping blocks are fixedly connected to the ends, close to the puncher pin, of the press rods, and after rotating, the press rods drive the clamping blocks to clamp the limiting ring. The lower end of the connecting rod is in threaded connection with a casing pipe, and the casing pipe is used for pressing down the press rods after rotating. The connecting stability of the puncher pin and the punching machine is increased in the manner that the casing pipe cooperates with the clamping blocks, and loosening and falling off are reduced.

Description

technical field [0001] The invention belongs to the technical field of stamping dies, in particular to an easily replaceable stamping die head connecting device. Background technique [0002] At present, stamping dies have become an indispensable tool for stamping factories. With the continuous development of stamping dies, stamping dies have been widely used due to their unique advantages, but some stamping dies still have certain problems, such as: complex structure, use It's cumbersome, doesn't keep workers safe, and isn't efficient [0003] In the prior art, there are also some technical solutions about the connecting device of the stamping die. For example, a Chinese patent with the application number of 2018207663269 discloses a stamping die replacement device, including an upper mold base and a lower mold base. The upper mold The bottom of the seat is fixedly provided with a punch fixing plate, and the punch fixing plate is provided with a punch and a stamping head, ...

AI Technical Summary

Problems solved by technology

[0004] In order to make up for the deficiencies of the prior art, the present invention proposes an easy-to-replace stamping die connecting device. Frequent impact and vibration during the process make the pins easy to wear due to vibration, and at the same time increase the movable gap between the punching head and the punching machine, increase the wear of the connecting part between the punching head and the punching machine, and reduce the movement accuracy of the punching head

Images