Multi-tube intensive flexible efficient automatic tube insertion process

Abstract

The invention relates to multi-tube intensive flexible efficient automatic tube insertion processes, adopting an automatic tube insertion machine to conduct flexible tube insertion; the automatic tube insertion machine comprises a machine frame, a hanging rod device for positioning a long U-shaped copper tube, a pinch unit, a pinch unit driving mechanism, and a working platform; the pinch unit is driven by the pinch unit driving mechanism to move up and down; the pinch unit comprises an upper pinch unit and a lower pinch unit which are arranged in parallel and driven by an upper and a lower travel mechanism to move relatively; the upper pinch unit and the lower pinch unit respectively consists of a pinch rod and a positioning pinch rod; an air bag is arranged in the pinch rod and the positioning pinch rod respectively; an open-close driving mechanism respectively drives opening and closing between the pinch rods and the positioning pinch rods of the upper pinch unit and the lower pinch unit. According to the process, automatic tube insertion is realized during heat exchanger production, the demand for labor force and production costs are reduced, the production efficiency is improved, the labor strength of workers is reduced, and an air bag is simultaneously provided in the pinch unit for flexible clamping the copper tube, thus preventing the copper tube from deformation under pressure.

Description

technical field

[0001] The invention relates to a production process of a heat exchanger, in particular to a multi-tube intensive flexible high-efficiency automatic tube-piercing process. Background technique

[0002] The production of heat exchangers in many industries (such as the air-conditioning industry) includes a tube-piercing process. Taking the heat exchanger of an air-conditioner as an example, there are generally hundreds of extremely thin aluminum fins and dozens of fins in each row of fins of the heat exchanger. A thin-walled copper tube, the copper tube is easily deformed and the fins are easily damaged during the process of passing through the tube. At present, the fin stacking and pipe threading processes of heat exchangers such as air-conditioning condensers and radiators are mostly done manually, and there are no successful cases of automatic pipe threading machines in China. Although manual pipe threading can reduce copper pipe deformation, it requires a ...

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