Manufacturing method of central air-conditioning heat exchanger shell tube

Abstract

The invention provides a method for manufacturing a heat exchanger shell tube for a central air conditioner. The method comprises the following steps: (1) generating numerical control marking instructions; (2) placing a sheet material to be machined on a processing station, and using a controller to control a dotting device to move and dot on the sheet material to be machined according to the marking instructions; (3) using the controller to control a cutting device to cut the sheet material to be machined, so as to manufacture a shell unfolded material with a proper size; (4) winding the shell unfolded material to form a heat exchanger shell tube. The method provided by the invention adopts the dotting mark form which causes minor damages to the surface of the shell tube and effectively solves the problem of abnormal positioning caused by a measurement error or a measurement mistake during the production of the shell tube; because stamping dotting is adopted to mark, the mark effect is still visible after subsequent procedures such as sand blasting and shot blasting; the design is directly converted to the numerical control marking instructions, which realizes the transformation from manual marking to digitized and intelligent marking during the manufacturing of a central air conditioning device and solves the problem of product inconsistency during the manufacturing of a large-size air conditioner.

Description

technical field [0001] The invention relates to the technical field of manufacturing central air-conditioning equipment, in particular to a method for manufacturing a shell tube of a central air-conditioning heat exchanger. Background technique [0002] Central air conditioners are large-scale industrial equipment. During manufacturing, due to the large size of parts, many processes can only be completed manually by workers. For example, for the shell tube of the central air-conditioning heat exchanger, during the production process, when welding the support group, it is necessary to mark the welding position of the support group. Usually, employees use a tape measure and a drawing to measure on the spot according to the drawing to find the specific size position of the bracket and mark it. This positioning method is greatly affected by human factors and is very error-prone, resulting in deviations in the installation size of the bracket. Therefore, for the manufacturing me...

AI Technical Summary

Problems solved by technology

Usually, employees use a tape measure and a drawing to measure on the spot according to the drawing to find the specific size and position of the bracket and mark it. This positioning method is greatly affected by human factors and is very error-prone, resulting in a deviation in the installation size of the bracket.