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Nitrogen laser cutting machining device for saw blade base body

A technology of laser cutting and processing equipment, which is applied in the manufacture of cutting tools of sawing machines, metal sawing equipment, laser welding equipment, etc., and can solve the problems of easy burns of tooth tips and tooth seats, increased grinding allowance, and distortion of mounting holes, etc. problems, to achieve the effect of strong product consistency, small grinding allowance, and improved matrix quality

Inactive Publication Date: 2014-03-26
HEIXUANFENG SAW IND
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Problems solved by technology

Oxygen is used as the auxiliary gas to process the saw blade substrate. The main quality problems are: the installation hole is distorted and the precision is low; figure 2 shown in

Method used

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  • Nitrogen laser cutting machining device for saw blade base body
  • Nitrogen laser cutting machining device for saw blade base body

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Embodiment Construction

[0024] Such as figure 1 Among them, a saw blade substrate nitrogen laser cutting processing device, including a laser cutting machine, the laser beam 10 acts on the workpiece to be cut after passing through the first copper reflector 5, copper polarizer 6, second copper reflector 13 and focusing mirror 7 9; A nitrogen nozzle 11 is provided on one side of the workpiece 9 to be cut, and the nitrogen nozzle 11 is connected to a nitrogen supply device 12 .

[0025] The air pressure in the nitrogen supply device 12 is 12-18 bar, that is, the inlet pressure is 12-18 bar. The nitrogen purity in the nitrogen supply device 12 is ≥99.8%. The nozzle model is a single layer, and the diameter of the gas outlet of the nitrogen nozzle 11 is 1.5-2.5 mm. The distance between the nitrogen nozzle 11 and the workpiece to be cut is 0.5-1.5 mm.

[0026] The laser output power of the laser cutting machine is ≥2000W, and the mode of the laser beam 10 is TEM00 or TEM01. The laser beam 10 adopts a...

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Abstract

A nitrogen laser cutting machining device for a saw blade base body comprises a laser cutting machine, and a laser beam passes a first copper reflector, a copper polarizer, a second copper reflector and a focus lens to act on a workpiece to be cut. One side of the workpiece to be cut is provided with a nitrogen nozzle which is connected with a nitrogen supplying device. The nitrogen laser cutting machining device has the following advantages that materials are melted completely through the laser energy during nitrogen cutting, the nitrogen blows molten slag in a cutting gap out, and inappropriate chemical reaction is avoided. The temperature of a melting point area is relatively low, and due to the fact that the nitrogen has the functions of cooling and protecting, the thermal deformation is small, the reaction is stable and even, and the cutting quality is high. The fracture surface is fine and smooth, the surface roughness is low, and an oxidation layer does not exist. The precision of the saw blade base body cut by the nitrogen laser is high, an installing hole does not deforme, the tooth part is not burned, the gear grinding allowance before a welding cutting head is small or gear grinding does not exist, and the quality of the base body is obviously improved. A cutter is not abraded in the process of machining, and the consistency of products is high during the batch processing.

Description

technical field [0001] The invention relates to a laser processing device, in particular to a saw blade substrate nitrogen laser cutting processing device. Background technique [0002] Saw blades are widely used in cutting fields. With the expansion of the application range of the saw blade and the diversification and complexity of the processing objects, higher requirements are put forward for the performance of the saw blade substrate. In order to ensure good cutting performance of the saw blade, the base of the saw blade must have high quality stability and cutting repeatability. The processing method of the small holes and teeth of the saw blade base has a significant impact on its accuracy. [0003] In the prior art, punching, wire cutting, oxygen laser cutting and other methods are usually used to form the small holes and teeth of the saw blade base. Punching teeth have problems such as uneven tooth indexing, serious tooth end surface stepping, fast grinding wear, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/38B23K26/142B23D65/00
CPCB23K26/38B23D65/00B23K26/0643B23K26/142
Inventor 潘天浩张敏韩涛范祖华
Owner HEIXUANFENG SAW IND
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