Replaceable two-coordinate laser machining head of multi-axis numerical control machining system for preventing optical fiber from winding

A laser processing head and laser processing technology, applied in metal processing equipment, laser welding equipment, manufacturing tools, etc., can solve the problems of time-consuming and labor-intensive processing accuracy, reduce repeated disassembly, simplify the process flow, and ensure coordination Effect

Active Publication Date: 2016-03-23
武汉飞能达激光技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, completing these processing processes on different machine tools requires repeated disassembly and positioning, which not only consumes time and labor, but also results in low processing accuracy.

Method used

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  • Replaceable two-coordinate laser machining head of multi-axis numerical control machining system for preventing optical fiber from winding
  • Replaceable two-coordinate laser machining head of multi-axis numerical control machining system for preventing optical fiber from winding
  • Replaceable two-coordinate laser machining head of multi-axis numerical control machining system for preventing optical fiber from winding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The workpiece in this example is two 6061 aluminum alloy plate structural parts with a plate thickness of 4mm. The processing requirement is to connect the two structural parts together by welding, and then process the structural parts into specific properties by cutting. A lens-focused welding optical assembly with a focal length of 300mm and a lens-focused cutting optical assembly with a focal length of 150mm are selected.

[0046] The welding process parameters used in this example are: laser power 3500W, minimum spot diameter 0.48mm, welding speed 2m / min, defocus amount -2mm, and the angle between the laser beam and the surface of the workpiece is 5°. The cutting process parameters used in this example are: laser power 4500W, minimum spot diameter 0.24mm, cutting speed 3m / min, defocus -2mm, distance between nozzle and workpiece 1mm, auxiliary air pressure 15bar.

[0047] The two aluminum alloy flat structural parts are clamped together by a special fixture. First, t...

Embodiment 2

[0051] The workpiece in this example is a GCr15 steel plate structural part with a plate thickness of 3mm. The processing requirement is to cut the structural part into a specific shape and quench the surface of the structural part. A lens focusing laser cutting optical component with a focal length of 125mm and a galvanometer scanning laser quenching optical component are selected.

[0052] The cutting process parameters of this example are: laser power 4500W, minimum spot diameter 0.2mm, cutting speed 5m / min, defocus -2mm, distance between nozzle and workpiece 1mm, auxiliary air pressure 13bar. The quenching process parameters of this example are: laser power 1500W, spot diameter 4mm, quenching speed 5m / min.

[0053] Clamp the flat plate structure on the workbench of the machine tool, first install the laser cutting optical assembly on the flange through the slider structure, and then carry out the laser cutting operation along the specified path. After the cutting is compl...

Embodiment 3

[0057] The workpieces in this example are 4 ZL104 aluminum alloy curved surface structural parts with a plate thickness of 2mm. The processing requirement is to weld the 4 aluminum alloy structural parts into a whole, and then cladding the workpiece surface to form a copper-based alloy layer. The galvanometer scanning laser processing optical components are selected to complete laser welding and laser cladding at the same time.

[0058] The welding process parameters of this example are: laser power 3000W, minimum spot diameter 0.2mm, welding speed 3m / min, defocus amount -2mm. The process parameters of laser cladding in this example are: laser power 1500W, minimum spot diameter 2mm, cladding speed 1m / min, the powder used for cladding is selected to contain a certain amount of Ni, Mo, Co, Fe, and Si and other elements. Cu-based mixed powder.

[0059] Install the curved surface structure on the machine table through the fixture, install the galvanometer scanning laser processin...

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Abstract

The invention discloses a replaceable two-coordinate laser machining head of a multi-axis numerical control machining system for preventing an optical fiber from winding. The replaceable two-coordinate laser machining head comprises a rotating shaft C, an oscillating shaft A and an optical laser machining assembly, wherein the shaft C can drive the shaft A to rotate; the shaft A can drive the optical laser machining assembly to oscillate; and the optical laser machining assembly is mainly used for guiding laser to machine workpieces. The two-coordinate laser machining head disclosed by the invention is combined with a machine tool, so that big-breadth and high-speed laser machining can be realized. When the workpieces need to be milled, only the shaft A needs to be dismounted, then, a milling head is connected with the shaft C through a rapid connection end surface, and at the moment, the machine tool can become a multi-axis linked milling system. Meanwhile, the layout of a hydroelectric circuit is optimized, the protection for a laser transmission optical fibers is enhanced, and the equipment stability in high-speed machining can be ensured.

Description

technical field [0001] The present invention relates to the fields of laser processing and multi-axis numerical control processing, and specifically refers to a multi-axis numerical control processing system capable of preventing optical fiber from winding and can replace a two-coordinate laser processing head (hereinafter referred to as a two-coordinate laser processing head). The combination of the two-coordinate laser processing head and the CNC machine tool can not only realize large-format, high-speed laser processing, such as laser cutting, laser welding, laser quenching, laser cladding and other laser processing methods. It is also possible to quickly replace the laser processing head with a milling head for milling, so that one machine tool can have the functions of laser processing and milling at the same time. The processing system optimizes the optical fiber transmission line to ensure that the optical fiber will not be entangled during the three-dimensional process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/00B23K26/08B23K26/348
CPCB23K26/00B23K26/0876B23K26/348
Inventor 高明曾晓雁陈聪
Owner 武汉飞能达激光技术有限公司
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