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Compound-type aluminium alloy frication-stir-welding main shaft

A technology of friction stir welding and aluminum alloy, which is applied in welding equipment, welding equipment, non-electric welding equipment, etc., to achieve the effect of simple structure, controllable insertion depth and good heat dissipation

Inactive Publication Date: 2014-10-01
ANYANG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies and defects existing in the existing aluminum alloy friction stir welding technology, the present invention provides a composite aluminum alloy friction stir welding spindle

Method used

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  • Compound-type aluminium alloy frication-stir-welding main shaft

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Embodiment Construction

[0011] Combine below figure 1 and figure 2 The composite aluminum alloy friction stir welding spindle of the present invention will be described in more detail through specific implementation methods.

[0012] figure 1 , 2 As shown, a composite aluminum alloy friction stir welding spindle of the present invention includes a stirring pin 1, a locking stirring head 2, a front end cover 3, a shaft sleeve 7, a rotating shaft 8, a retracting shaft 25, a motor casing 14, and a motor shaft 15. Motor stator 16, motor rotor 21, rear cover 17, shaft coupling 12, upper and lower transmission rings 24 and 27, coupling pin 11, the motor shaft 12 is set in the motor housing 14 through the front and rear motor bearings 13 and 20, Locked and fixed by the motor nut 22 and the compression nut 18, a motor stator 16 and a motor rotor 21 are arranged between the motor shaft and the motor casing, the periphery of the motor casing 14 is provided with a cooling rib structure, and the periphery of...

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Abstract

The invention discloses a compound-type aluminium alloy frication-stir-welding main shaft. According to the compound-type aluminium alloy frication-stir-welding main shaft, an external three-phase power supply is used for driving a motor shaft by a motor stator and a motor rotor; a rotary shaft is driven by a shaft coupler connecting shaft pin to rotate, and a pumpback shaft is driven by the connecting shaft pin to rotate simultaneously; the pumpback shaft is enabled to slide up and down by virtue of the pressure difference between an upper air cavity and a lower air cavity formed by the rotary shaft and the pumpback shaft; a key slot remained by frication-stir-welding is eliminated by the pumpback of a stirring needle, and the main shaft is enabled to slide up and down to control the insertion depth of the stirring needle by virtue of a rack key slot structure at the periphery of a shaft sleeve simultaneously; a stirring head is in threaded fit and replaced in time. The compound-type aluminium alloy frication-stir-welding main shaft is reasonable in structure, controllable in rotational speed and good in hollow air-cooling heat dissipation; the pumpback of the stirring needle is controlled by an air pressure, the main shaft is capable of lifting, the key slot is eliminated, the equipment is simplified, the occupied space is less, and the cost is low.

Description

technical field [0001] The invention belongs to the field of friction stir welding equipment, in particular to a composite aluminum alloy friction stir welding spindle. Background technique [0002] Friction stir welding is a new type of solid-state joining technology, referred to as FSW. It has the advantages of simple process, no pre-weld cleaning, ability to maintain the metallurgical properties of the original alloy, and easy realization of mechanization and automation. At present, friction stir welding technology is widely used in the connection and manufacture of aluminum alloy components such as aerospace and transportation. In aluminum alloy friction stir welding equipment, the development and application of the main shaft has just started, and there are complex structures, poor speed controllability, large main shaft vibration and difficult control of pressure, resulting in poor welding quality of aluminum alloy components. At the end of welding, there is a keyhole...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/12
CPCB23K20/125B23K20/26B23K37/003
Inventor 赵亚东梁兴张一寒王涛来彦玲苏华智鹏鵬
Owner ANYANG INST OF TECH
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