Flaring mechanism for pipe expander

Abstract

The invention discloses a flaring mechanism for a pipe expander. The flaring mechanism comprises a flaring installing plate connected with a guide rail of the pipe expander and a flaring pipe arranged on the flaring installing plate, wherein a plurality of flaring pipe installing holes are formed on the flaring installing plate, the flaring pipe is arranged in the flaring pipe installing holes, the front end of the flaring pipe is externally provided with a cone-shaped flaring head, an expanding rod of the pipe expander is covered in the flaring pipe from the back, and the expanding rod can axially move relative to the flaring pipe; and the flaring pipe is externally covered with a clamping device, and the clamping device can axially move relative to the flaring pipe. The flaring mechanism is simple in structure, convenient to install, and space-saving since not needing to be lifted up and down; when a pipe expanding working procedure is carried out by the pipe expander, an opening of a U-shaped pipe leans against the front end face of the flaring pipe, the opening of the U-shaped pipe is clamped by the clamp device, and the expanding rod extends out of the flaring pipe to expand the pipe, so that the quality of finished products can be guaranteed; and after the pipe is expanded, the flaring can be carried out without needing to withdraw the expanding rod, so that the operation time and difficulty for realigning the pipe opening can be reduced, and the defective rate can be reduced as well.

Description

(1) Technical field: [0001] The invention relates to a flaring mechanism of a tube expander, in particular to a flaring mechanism of a horizontal tube expander. (two) background technology: [0002] The existing tube expander includes a tube expansion part and a flaring part. The tube expansion part includes a U-shaped tube fixing bracket, a guide rail, and a copper tube fixing part is arranged on the U-shaped tube fixing bracket to fix the U-shaped end of the U-shaped tube. The expansion rod is installed on the guide rail, and the expansion rod is pushed by the expansion rod driving mechanism to move along the guide rail. The expansion rod enters the copper tube from the U-shaped tube nozzle to realize tube expansion; its flared part includes a mounting plate, and the mounting plate is equipped with a driving mechanism And the expansion head, the mounting plate is installed on the lifting frame above the movable guide rail of the expansion rod. After the U-shaped tube expan...

AI Technical Summary

Problems solved by technology

This structure has the following disadvantages: 1. The flaring mechanism is located above the guide rail and needs to be lifted and lowered by the lifting frame. Not only is the structure complex and bulky, but also the connection between the flare mounting plate and the guide rail is accurate, and the assembly process is high; 2. Due to the separate processes of tube expansion and expansion, two processes of aligning copper tubes are required, which increases the difficulty and time of operation, and is prone to defective products

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