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External type mechanical fixed needle extruding device and method

An extrusion device, an external technology, applied in the field of metal extrusion equipment, can solve the problems of increasing the length of the frame, high cost, complex structure, etc. Effect

Inactive Publication Date: 2016-10-12
CHINA NAT HEAVY MACHINERY RES INSTCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • External type mechanical fixed needle extruding device and method
  • External type mechanical fixed needle extruding device and method
  • External type mechanical fixed needle extruding device and method

Examples

Experimental program
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Effect test

Embodiment 1

[0026] This embodiment provides an external mechanical fixed needle extrusion device, such as figure 1 with figure 2 As shown, it includes a perforated piston rod 8, a limit sleeve 10, a main cylinder 12, a perforated cylinder 13, a perforated needle 15, an aluminum ingot 16 and an extrusion die 17, and the main cylinder 12 is fixedly installed on the extruder frame 14 Above, the main cylinder 12 is fitted with a piercing cylinder 13, a limit sleeve 10 is installed at one end of the main cylinder 12, and an aluminum ingot 16 and an extrusion die 17 are installed inside the piercing cylinder 13 along its axial direction;

[0027] One end of the perforated piston rod 8 is fixedly connected with the perforated needle 15, and one end of the perforated piston rod 8 on which the perforated needle 15 is installed passes through the spacer sleeve 10, the master cylinder 12 and the perforated cylinder 13 successively, and the other end of the perforated piston rod 8 is sleeved with g...

Embodiment 2

[0031] This embodiment is further detailed on the basis of Embodiment 1. The gear assembly set on the perforated piston rod 8 includes a hydraulic motor 4, a small gear 5 and a large gear 6. The inner ring of the large gear 6 is provided with threads, which are screwed on the On the perforated piston rod 8, the outer ring of the large gear 6 is two stepped surfaces, and the two stepped surfaces are respectively provided with gear teeth and bushings, the hydraulic motor 4 is fixed on the bushing, and the pinion gear 5 is fixed on the output shaft of the hydraulic motor 4 , the gear teeth of the pinion 5 and the bull gear 6 outer ring mesh.

[0032] In the present invention, the limit function formed by the cooperation between the gear assembly and the limit sleeve 10 is a very critical part, and it is a necessary part to realize that the needle head stops when it enters a certain position of the mold. In this embodiment, as the perforating needle 15 advances , the hydraulic mot...

Embodiment 3

[0036] The support wheel assembly 2 includes a fixed sleeve 3 and a support wheel that are set on the perforated piston rod 8. The inner wall of the fixed sleeve 3 and the outer wall of the perforated piston rod 8 are locked and anti-rotated by a flat key in the circumferential direction, and the outer and lower parts of the fixed sleeve 3 are connected and installed by connecting pieces. Support wheels, which fall on the perforation system guide rail 9.

[0037] The supporting wheel assembly 2 is located at the outer end of the gear assembly, and a locking nut 1 is arranged at the outer end of the supporting wheel assembly 2, and the locking nut 1 is installed at the end of the perforated piston rod 8 .

[0038] The towline hose 7 is also installed on the guide rail 9 of the perforation system. The control cable of the hydraulic motor 4 is installed in the towline hose 7. The towline hose 7 looks like a tank chain and is composed of many unit links. The links can rotate freely...

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): B21C23/08B21C23/20
CPCB21C23/085B21C23/20
Inventor 黄胜张君侯永超杨建张宗元
Owner CHINA NAT HEAVY MACHINERY RES INSTCO
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