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Build-up device, method of manufacturing screw shaft, screw shaft, and screw device

A manufacturing method and technology of screw shaft, applied in the direction of manufacturing tools, transmission devices, welding equipment, etc.

Active Publication Date: 2019-06-07
NSK LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, depending on the welding object, the temperature rise caused by welding may have a negative impact on the material of the workpiece

Method used

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  • Build-up device, method of manufacturing screw shaft, screw shaft, and screw device
  • Build-up device, method of manufacturing screw shaft, screw shaft, and screw device
  • Build-up device, method of manufacturing screw shaft, screw shaft, and screw device

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Embodiment Construction

[0097] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0098] figure 1 It is an overall configuration diagram of the build-up welding device of the first embodiment.

[0099] The build-up welding device 100 of this embodiment is a device for performing laser cladding (laser cladding) processing on a workpiece, and includes a heating head 11, an adhesive material supply unit 13, a relative movement mechanism described later, a cooling jacket 15, and a mounting plate. A shielding plate 67 as a shielding member is provided on the outer periphery of the workpiece 17 . The laser cladding process of this build-up welding device 100 can also be applied to high-precision components such as the ball screw shaft 19 , for example.

[0100] figure 2 is a schematic perspective view of a ball screw shaft 19 as an example of a workpiece 17, image 3 is shown equipped with figure 2 A structural diagram of an example of a f...

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PUM

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Abstract

This build-up device is provided with a heating head which includes a heat source for heating both a part of a workpiece being processed and a fixing material, and which causes the molten fixing material to adhere to the workpiece. The build-up device is configured in such a way that a cooling fluid is brought into contact with a temperature-rise suppressed part adjacent to the part of the workpiece being processed.

Description

technical field [0001] The invention relates to a surfacing device, a method for manufacturing a screw shaft, a screw shaft, and a screw device. Background technique [0002] Generally, when welding is performed in air, surrounding air is used to naturally cool the welded portion, and it is rare to actively cool a specific portion of the workpiece during welding. However, depending on the welding object, the temperature rise caused by welding may have a negative impact on the material of the workpiece. In this case, a cooling method may be employed in which a certain gas or liquid is sprayed as a coolant to a specific portion of the workpiece during the welding operation. For example, in the friction stir welding device of Patent Document 1, the coolant is sprayed to the portion where the temperature rise of the workpiece is to be avoided. Furthermore, in the manufacturing apparatus of the hollow camshaft of patent document 2, the cooling method using the shape of a workpi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K31/00B23K26/342F16H25/24B23K9/04
CPCB23K26/0823F16H25/2204B23K26/342B23K26/146F16H2025/2481F16H25/24B33Y10/00B33Y30/00B33Y80/00
Inventor 小池悦雄藤代裕章
Owner NSK LTD