A hollow hook bending machine

Abstract

The invention discloses a bending machine for a hollow lifting hook. The bending machine comprises a rack, wherein a lifting hook wire feeding part and a lifting hook bending part are fixedly mountedon the rack; the lifting hook bending part comprises a bending machine head; a lifting hook pre-cutting device is also fixed between the lifting hook wire feeding part and the lifting hook bending part on the rack; the lifting hook pre-cutting device comprises a first mounting plate; a rotary disc which is driven to rotate through a the driving device is mounted on the first mounting plate; the rotary disc is fixedly connected with at least one cutting assembly; each of the cutting assemblies comprises a telescopic mechanism; each of the telescopic mechanisms is connected with a correspondingcutter; the three cutting assemblies are uniformly and circularly arranged on the rotary disc; and the cutters on the cutting assemblies are positioned on the same circumference. According to the bending machine disclosed by the invention, before the hollow lifting hook is bent, a knife edge is pre-cut on the lifting hook, so that the phenomenon that the lifting hook cannot be deformed when the lifting hook is cut off is avoided.

Description

technical field [0001] The invention specifically belongs to the field of hollow hooks, and in particular relates to a hollow hook bending machine. Background technique [0002] The automobile exhaust pipe hook is the connecting part between the exhaust pipe and the automobile body, and the automobile exhaust pipe is fixed on the automobile body through the hook. The hook is divided into hollow hook and solid hook. After the solid hook is bent, it can be cut directly by the vertical cutting knife on the bending machine. After the hollow hook is bent, because the hollow hook It has a central hole, so the strength is low. If the vertical cutting knife is used to cut directly after bending, the hollow hook will be deformed and the entire hollow hook will be scrapped. In addition, when the solid hook is bent by the bending machine, it will not be deformed due to its strong strength, and when the hollow hook is bent, because the hollow hook is provided with a central hole, so T...

AI Technical Summary

Problems solved by technology

The hook is divided into hollow hook and solid hook. After the solid hook is bent, it can be cut directly by the vertical cutting knife on the bending machine. After the hollow hook is bent, because the hollow hook It has a central hole, so the strength is low. If the vertical cutting knife is used to cut directly after bending, it will cause deformation of the hollow hook and cause the entire hollow hook to be scrapped.

In addition, when the solid hook is bent by the bending machine, it will not be deformed due to its strong strength, and when the hollow hook is bent, because the hollow hook is provided with a central hole, so The strength of the hollow hook is greatly reduced, and it is easy to deform or produce hard points during bending. At present, the forming blocks on the mandrel fixed in the bending machine head generally include four forming blocks evenly arranged. After entering the mandrel, the middle part of the hollow hook will not be tightly hugged by the forming block, which also makes the unclamped part deform when the hollow hook is bent

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