Special milling machine for machining separation plates of tube plates

Abstract

The invention discloses a special milling machine for machining separation plates of tube plates. The milling machine comprises a bracket, wherein a working table is arranged on the bracket; a guide rail and a screw are arranged at the upper end of the bracket; the guide rail is matched with a horizontal traveling mechanism and a vertical height adjustment mechanism; the screw is spirally matched with the horizontal traveling mechanism; a hand wheel is arranged at the other end of the screw; a milling mechanism is arranged on the vertical height adjustment mechanism; the horizontal traveling mechanism props against the vertical height adjustment mechanism. After the special milling machine for machining the separation plate grooves of the tube plates is manufactured, three plate grooves of three tube plates with the nominal diameters of DN800mm, DN1200mm and DN1800mm are selected for trial machining, the operation situation of the milling machine and the machining quality of a workpiece are evaluated, and the machining quality, accuracy and surface roughness of the workpiece can meet requirements of a drawing.

Description

technical field [0001] The invention relates to the field of milling machines, in particular to a special milling machine for processing tube plate partitions. Background technique [0002] Heat exchanger is the main equipment in chemical production, and heat exchanger manufacturing is an important part of pressure vessel manufacturing. In the manufacture of heat exchangers, the processing of the tube plate partition grooves of double-shell, double-tube and multi-tube heat exchangers is an important process, which has high requirements for dimensional tolerances, shape tolerances and surface roughness. . As the scale of chemical production continues to expand in recent years, the size of heat exchangers is also increasing. For the processing of large-scale heat exchanger partitions, large-scale planers or milling machines are required. The purchase price of such large-scale processing equipment is generally In the hundreds of thousands or millions, generally small and ...

AI Technical Summary

Problems solved by technology

As the scale of chemical production continues to expand in recent years, the size of heat exchangers is also increasing. For the processing of large-scale heat exchanger partitions, large-scale planers or milling machines are required. The purchase price of such large-scale processing equipment is generally In the hundreds of thousands or millions, generally small and medium-sized pressure vessel manufacturers cannot bear it, and the utilization rate is not high

The processing of such tube plate partition grooves generally adopts the method of outsourcing processing, but the outsourcing processing time is long, the processing cost is high, and the round-trip transportation causes delays in the construction period and increased costs, which affects the economic benefits of the enterprise

Images