Laser random roughening processing method and processing device of roll surface based on transmission galvanometer
A technology of roll surface and processing method is applied in the field of laser disordered texturing processing method and processing device of roll surface based on transmission galvanometer, which can solve the problems of volume and weight restricting laser deflection frequency, complex focusing device, etc. Simple structure, small size and low requirements
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Embodiment 1
[0027] Such as figure 1 As shown, the embodiment of the present invention provides a method and a processing device for laser random roughening of the roll surface based on a transmission galvanometer, and the processing method will be described in detail below in conjunction with the processing device; the device mainly includes a frame, a machine tool , laser, optical scanning vibrating mirror and focusing lens 4; wherein the laser output end, optical scanning vibrating mirror and focusing lens 4 are all arranged on the frame, and the frame is installed on the machine tool pallet; the roll 5 rotates along its own axis through the machine tool, The rotation speed can be set, and the frame moves along the axis 6 of the roll 5;
[0028] The optical scanning galvanometer is placed on the focusing lens 4 and the output end of the laser (see figure 1 In the laser beam 3 between the left end of the middle laser beam 3), the optical scanning vibrating mirror includes a vibrating mi...
Embodiment 1
[0032] Such as figure 1 As shown, the included angle of wedge 2 α =10 0 . Using frequency-converted sine wave as the driving waveform of vibrating mirror motor 1, the maximum deflection angle of optical wedge 2 β =0.04 0 . Focal length of focusing mirror 4 f =100mm, the maximum offset of the texturing pit position is md = f ∙ β ≈0.07mm. The angle between the axis of the galvanometer motor 1 and the axis of the roller 5 is 90° 0 . Processing device of the present invention is with pitch on roll 5 roller surface sp =0.2mm and the pit distance dp=0.2mm (the pit distance is related to the frequency of the laser emitted by the laser and the rotational speed of the roll) along the roll axis 6. The distribution of textured pits on the roll surface without random distribution is as follows: Figure 4 as shown, Figure 4 It is a developed view of the roll surface of the roll 5. The distribution of textured pits on the roll surface after implementing disorderly distrib...
Embodiment 2
[0034] Such asfigure 1 As shown, the optical scanning galvanometer is placed in the laser beam 3 between the focusing lens 4 and the output end of the laser, the lens of the galvanometer is a transmissive optical wedge 2, and the angle between the optical wedge 2 α =10 0 . Using frequency-converted sine wave as the driving waveform of the vibrating mirror, the maximum deflection angle of wedge 2 β =0.04 0 . Focal length of focusing mirror 4 f =100mm, the maximum offset of the texturing pit position Δ = f ∙ β ≈0.7mm. Angle between the axis of the galvanometer and the axis of the roll 5 gamma for 45 0 . The device of the present invention moves along the roll axis 6 with a screw pitch of 0.2 mm and a pit pitch of dp=0.2 mm, and the textured pits on the roll surface are distributed as follows Figure 6 shown. Compared Figure 6 and Figure 4 It can be seen from the distribution of the texturing pits in this embodiment that the texturing pits are randomly shifted ...
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Abstract
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