Milling cutter mechanism of CNC precision milling equipment based on rail weld seam

Abstract

The invention discloses a milling cutter mechanism of a numerical control precision milling device based on rail welds, relates to the technical field of peripheral milling cutter structures, and solves the problem of inconvenient maintenance, disassembly and assembly of the existing numerical control peripheral milling cutters. A milling cutter mechanism of a numerically controlled precision milling device based on rail welds, comprising a tool holder and a cutter bar; a ring of alloy cutter heads is installed on the bottom surface of the cutter holder, and the cutter holder is provided with a circular inner hole, and A connection seat is fitted in the inner hole; the knife rod is connected to the top of the connection seat, and the knife rod is a square block structure with an internal thread hole, and the external thread at the bottom end area of ​​the reinforcing column just matches the thread in the knife seat. The seat is connected, and the reinforcing column can press the spring bar outward, so that the tool head seat and the tool bar are docked. Therefore, when the tool head is removed, it is only necessary to turn the reinforcing column in the tool bar to remove the tool head from the tool bar. It is easier to remove and grind or replace the cutter head, so it is more convenient when the cutter head is removed, replaced or maintained after the peripheral milling cutter of this structure has been used for a period of time.

Description

technical field [0001] The invention relates to the technical field of numerical control peripheral milling cutter structure, in particular to a milling cutter mechanism of numerical control precision milling equipment based on rail welds. Background technique [0002] my country's railway rail welding base welds the 100-meter-long steel rail produced by the steel factory into a 500-meter-long steel rail, and then transports it to the line for laying. The long rails welded at the rail base have welds connecting the rails, and the welds need to be trimmed before they can be delivered to the line for use. [0003] The weld seam formed needs to be polished, and a rail weld seam milling equipment is disclosed in the Chinese Patent Publication No. CN201821704192.4. Its basic features are described as including milling machine parts, manipulator grinding parts and electrical control parts. The control part controls and coordinates the milling machine parts and the manipulator gri...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a milling cutter mechanism based on rail weld seam numerical control precision milling equipment, to solve the four cutter heads on the periphery of the cutter head after the existing numerical control peripheral milling cutter proposed in the above background technology has been used for a period of time There will be wear and tear, so in order to save costs, it is necessary to remove and replace the cutter head from the tool holder, or to further save costs, the removed cutter head can be polished with special grinding equipment to realize recycling, but the cutter head and the cutter holder are more The flat key is inserted into the keyway of the tool head to make the two fit together. When the tool head is removed from the tool holder in this way, there is a problem of inconvenient disassembly and assembly.

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