Electric smelting saddle-shaped pipe fitting cambered surface wiring machine and processing method

Abstract

The invention discloses an electric smelting saddle-shaped pipe fitting cambered surface wiring machine. The electric smelting saddle-shaped pipe fitting cambered surface wiring machine comprises a base, a Y-axis moving mechanism, an A-axis rotating mechanism, a C-axis rotating mechanism and a CNC system. An X-axis moving mechanism, a Z-axis moving mechanism and a milling mechanism are mounted onthe base. The X-axis moving mechanism and the milling mechanism are arranged on the two sides of the Z-axis moving mechanism correspondingly. The C-axis rotating mechanism is slidably mounted on the Z-axis moving mechanism. A tool is mounted on an output shaft of the C-axis rotating mechanism. The Y-axis moving mechanism is slidably mounted on the X-axis moving mechanism. The A-axis rotating mechanism is slidably mounted on the Y-axis moving mechanism. A wiring tool is mounted on an output shaft of the A-axis rotating mechanism. The wiring tool is located on the side, facing the Z-axis movingmechanism, of the A-axis rotating mechanism. The processing equipment provided by the invention is low in cost. Initial investment of an enterprise is reduced. An electric smelting saddle-shaped pipefitting manufactured through the manufacturing process is better in quality, and meanwhile, the processing efficiency of the electric smelting saddle-shaped pipe fitting is higher.

Description

technical field [0001] The invention belongs to the technical field of processing equipment for saddle-shaped pipe fittings, in particular to an electric-fusion saddle-shaped pipe fitting arc surface wiring machine and a processing method. Background technique [0002] The electrofusion saddle fitting is a kind of fitting used for the connection of the plastic piping system, which is specified in the standard GB / T13663.3 "Polyethylene (PE) piping system for water supply Part 3: Fittings". The structure of the electrofusion saddle pipe mainly includes the plastic saddle body and the metal resistance wire on the arc surface. The principle of pipe fitting connection is to apply a controllable voltage on both ends of the metal resistance wire on the arc surface, so that the metal resistance wire heats up and melts the plastic on the arc surface of the saddle seat and the surface of the plastic pipe, and the plastic saddle pipe fitting and the pipe Electrofusion welding is conne...

AI Technical Summary

Problems solved by technology

The electrofusion saddle-shaped pipe fittings obtained by this production process mainly have the following defects: First: because the prefabricated thin-walled sheet with metal resistance wire is in a cooling state, it is placed in the mold for secondary injection molding, After the injection molding of the heated and molten plastic and the cooled sheet during secondary injection molding, an intersection interface will be left at the contact point of the hot and cold plastics, and an interface will be left at the contact point of the hot and cold plastics, such as image 3 shown

When the saddle-shaped pipe fittings produced by this process are connected to the plastic pipe, there is a risk that the sheet with the metal resistance wire will be detached from the saddle-shaped body

Second: After the injection molding of the arc on the saddle-shaped pipe fitting body is completed, due to cooling shrinkage, the diameter of the arc surface is deformed and the surface of the arc surface is cooled and shrinks, resulting in uneven surface. When the saddle-shaped pipe fitting of this process is connected with the plastic pipe , There is a gap between the saddle-shaped arc surface and the pipe surface, and the quality of the saddle-shaped pipe fittings and plastic pipe fittings is unstable after electric fusion

[0005] 1. The use of six-axis industrial robots for processing has high equipment costs, resulting in high initial investment costs and increased operational risks;

[0006] 2. The milling and wiring process requires the robot to use the quick change device to change the tool, it is difficult to guarantee the machining accuracy, and it cannot be completed at one time, resulting in low processing efficiency

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