Hole punching and flanging mechanism

Abstract

The invention discloses a hole punching and flanging mechanism which comprises a fixed male die, a movable die plate and a hole punching and flanging mechanism body. The hole punching and flanging mechanism body is arranged between the fixed male die and the movable die plate and fixed to the movable die plate, the hole punching and flanging mechanism body comprises a punching punch, a hole flanging female die sleeve and a hole flanging punch, the hole flanging punch is tubular, a waste channel is formed in the tail end of the interior of the hole flanging punch, and a female die cutting edgeis arranged at the joint of the hole flanging punch and the hole flanging female die sleeve. According to the hole punching and flanging mechanism, punching work and flanging work are separated, the punching punch is arranged in the hole flanging female die sleeve, a punching part is punched from inside to outside, the direction of the hole flanging punch is kept unchanged, the punch female die cutting edge and the waste channel are machined in the hole flanging punch, and therefore punching waste directly slides out through the waste channel in the hole flanging punch. By means of the structure, the surface quality problem of a fish mouth hole is solved, and the qualified rate of products is greatly increased.

Description

technical field [0001] The invention relates to the technical field of car door processing, and more specifically relates to a punching and turning hole mechanism. Background technique [0002] The door is to provide the passage for the driver and passengers to enter and exit the vehicle, and to isolate the interference from the outside of the vehicle, to reduce side impact to a certain extent, and to protect the occupants. The beauty of the car is also related to the shape of the door. The quality of the door is mainly reflected in the anti-collision performance of the door, the sealing performance of the door, the convenience of opening and closing the door, and of course other functional indicators. Anti-collision performance is particularly important, because when a vehicle collides sideways, the buffer distance is very short, and it is easy to injure the occupants of the vehicle. Door inner panel parts generally have punched holes, and this type of hole is generally c...

AI Technical Summary

Problems solved by technology

[0003] At present, the structure of the fish mouth hole is first air-cut punching and then flanging. The punching waste cannot directly enter the waste hole, and will fall on the flange surface, causing the parts to be crushed. In the production process, the inside of the fish mouth has Embossing, poor part quality

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