Optical fiber preformrod collet

Abstract

The invention discloses an optical fiber preformrod collet. The optical fiber preformrod collet comprises a preformrod fixing seat, a heat dissipation element and a connecting element, wherein the preformrod fixing seat comprises a clamping element and an opening-closing lining, the external surface of the opening-closing lining is jointed with the inner surface of the clamping element, and the inner surface of the opening-closing lining is jointed and connected with the external surface of the optical fiber preformrod; and the upper end of the clamping element is in threaded connection with the lower end of the heat dissipation element, the upper end of the heat dissipation element is in threaded connection with the lower end of the connecting element, and the upper end of the connectingelement is used for being connected with a three-jaw chuck. According to the optical fiber preformrod collet disclosed by the application of the invention, two steps of clamping and loading can be separately performed, so that the labor intensity of workers can be reduced, and the technological level can be increased; and the problems of difficult intensity control, difficult heat dissipation, inconvenient operation and the like in a three-jaw chuck type method can be solved.

Description

technical field [0001] The invention relates to the technical field of optical fiber manufacturing, in particular to an optical fiber preform chuck. Background technique [0002] The chucks for clamping preforms in optical fiber drawing towers are mostly three-jaw chucks. It is difficult to control the clamping force with three-jaw chucks, and it is difficult to dissipate heat at the clamping end, the lubrication environment is harsh, and it is prone to sticking and jamming. It is very inconvenient to carry out maintenance work such as disassembly and refueling. And because the height of the wire drawing tower is usually more than 10 meters, the form of the three-jaw chuck is used to clamp the rod online. The operator needs to go to the operation table to carry out the operation, which is difficult to operate. Due to the unstable center of gravity, the prefabricated rod may fall off from the hand when clamping the rod. Phenomenon. [0003] Chinese patent CN204644157U discl...

AI Technical Summary

Problems solved by technology

The device uses two load-bearing pins and safety pins to fix the optical fiber preform, and adjusts the centering through the side plug seat. This method has high requirements for the preform, and holes at fixed distances need to be drilled on the preform, which is easy to cause cracks, especially It is reflected in the thinner rods. If it is serious, it will cause the prefabricated rod to fall off, damage the drawing tower, and have certain safety hazards. The processing cost and operation difficulty are relatively high.

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