External type mechanical fixed needle extruding device and method

Abstract

The invention belongs to the field of metal extrusion equipment, and in particular relates to an external mechanical fixed needle extrusion device and method, including a perforated piston rod, a limit sleeve, a main cylinder, a perforated cylinder, a perforated needle, an aluminum ingot and an extrusion die, the main The cylinder is fixed on the extruder frame, the main cylinder is equipped with a perforated cylinder, and a limit sleeve is installed at one end of the main cylinder, and an aluminum ingot and an extrusion die are installed inside the perforated cylinder along its axial direction; one end of the perforated piston rod is fixed The piercing needle is connected, and one end of the piercing piston rod installed with the piercing needle passes through the limit sleeve, the main cylinder and the piercing cylinder in sequence, and the other end of the piercing piston rod is set with a gear assembly. This external mechanical fixed needle extrusion method and device, It can be used for both small and medium-sized presses and large presses. The mechanical limit position of the perforating needle can be adjusted in real time according to the process needs. Since the perforating system is built-in and the mechanical positioning part is external, the length of the extruder frame is reduced. The rigidity of the frame is improved, the maintenance is convenient, and the equipment cost is also reduced.

Description

technical field [0001] The invention belongs to the field of metal extrusion equipment, and in particular relates to an external mechanical fixed needle extrusion device and method, which is a new structure of a mechanical fixed needle in an aluminum extrusion perforation system, and is mainly suitable for double-action extrusion. Background technique [0002] The mechanical fixed pin technology is an effective method to extrude and produce seamless aluminum tubes with high inner surface quality. At present, there are two methods of mechanical fixed pin extrusion, one is built-in mechanical fixed pin, and the other is out-of-band Built-in perforation system. [0003] The built-in mechanical positioning needle needs to increase the perforating moving beam, and at the same time increase the length of the frame, which increases the cost and cost. Due to the limited space, it is difficult to maintain and overhaul, and it is impossible to realize the real-time adjustment of the m...

AI Technical Summary

Problems solved by technology

[0003] The built-in mechanical positioning needle needs to increase the perforating moving beam, and at the same time increase the length of the frame, which increases the cost and cost. Due to space constraints, it is difficult to maintain and overhaul, and it is impossible to realize real-time adjustment of the mechanical limit of the perforating needle.

[0004] The external piercing system has a piercing cylinder, piercing moving beam, piercing frame, etc., and the mechanical needle positioning is realized through the external piercing system. This method is expensive and complex in structure.

Images