Three-dimensional laser plastic welding processing head

A technology of plastic welding and three-dimensional laser, which is applied in the field of laser technology application, can solve the problems of increasing cost and production cycle, and achieve the effect of improving laser utilization rate, improving utilization rate, and improving welding quality

Inactive Publication Date: 2011-06-01
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Application Information

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Problems solved by technology

However, its light spot output is a spot light spot, which can perform contour welding well, but it is not suitable for some surface welding with a slightly larger area. It needs to scan back and forth for welding, which undoubtedly increases the cost and production cycle.

Method used

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  • Three-dimensional laser plastic welding processing head
  • Three-dimensional laser plastic welding processing head
  • Three-dimensional laser plastic welding processing head

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Such as Figure 1 to Figure 3 As shown, a three-dimensional laser plastic welding processing head includes a shell 1, a cylindrical roller 2, two shells 3, two pulleys 4, four springs 5 ​​and a cylindrical lens 6, and the two ends of the cylindrical roller 2 are fixedly connected to each other. The casing 3 has a pulley 4 nested on the outside of the casing 3, two springs 5 ​​are fixedly connected to each pulley 4, the other end of the spring 5 is fixedly connected to the casing 1, and a cylindrical lens 6 is fixedly embedded in the middle of the casing 1.

[0024] Such as figure 1 As shown, the cylindrical roller 2 is at the end of the processing head. It is transparent to the laser beam 7 and is close to the plastic surface to be welded. While achieving focus, it can also be used as a pressure device to squeeze the materials...

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Abstract

The invention relates to a three-dimensional laser plastic welding processing head which belongs to the field of applications of laser technologies. In order to realize synchronization of laser output and pressure output, realize large-area three-dimensional welding and simultaneously enabling the pressure exerted during welding to be uniform, the three-dimensional laser plastic welding processing head comprises a shell, a cylindrical roller, two pipe shells, two pulleys, four springs and a cylindrical lens, wherein the pipe shells are respectively connected at the two ends of the cylindrical roller, the pulleys are respectively sheathed and embedded on the outer sides of the pipe shells, two springs are fixedly connected on each pulley, the other end of each spring is fixedly connected with the shell, and the cylindrical lens is fixedly embedded at the middle part of the shell. The cylindrical roller is adopted for outputting linear light spots, the springs are mounted on the two sides of the cylindrical roller, the pressure direction and the pressure intensity can be automatically regulated along with fluctuations of a plastic surface, the cylindrical roller is always close to the plastic surface in a precise tangent mode, and the pressure is exerted vertically, thus the high-quality plastic welding can be obtained.

Description

technical field [0001] A three-dimensional laser plastic welding processing head belongs to the application field of laser technology. It is especially suitable for large-scale three-dimensional plastic weldments that require line light spots for plastic welding, and can achieve fast welding. Background technique [0002] With the development of laser technology, laser plastic welding has been widely used in automobiles, medicine, electronics and other fields. The current laser plastic welding is characterized in that two layers of plastic must be satisfied: one layer transmits the laser beam, and the other layer absorbs the laser beam. The welding process is roughly that the laser beam is incident from the side of the transmissive plastic, hits the interface of the two layers of plastic, is absorbed by the absorbing plastic, and the surface temperature of the absorbing plastic rises to cause thermal melting, and at the same time, heat conduction occurs to the transparent p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C65/16
CPCB29C66/81267B29C66/8362B29C65/16B29C65/1654B29C66/301B29C66/8161B29C66/73921
Inventor 张俊王立军单肖楠
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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