Cutter bar device of multi-functional digital controlled lathe

Abstract

The invention provides a cutter bar device for a multi-functional digital controlled lathe. The cutter bar device comprises a cutter frame, a rotation shaft seat, two cutter bars, two outer-circle cutter bodies and four internal-groove cutter bodies; a first flat plate and a second flat plate are installed in the thickness direction of the cutter frame, and the first flat plate and the second flat plate are integrally molded; the rotation shaft seat is of a rotary shape, a plurality of first through holes are formed in the axial direction of the rotation shaft seat in a circular array mode, and the rotation shaft seat is fixed to the cutter frame through threaded fasteners; the two cutter bars are arranged on the two sides of the cutter frame in central symmetry, clamped between the first flat plate and the second flat plate, and fixed to the cutter frame through threaded fasteners; the two outer-circle cutter bodies are installed at one ends of the two cutter bars correspondingly; and the four internal-groove cutter bodies are installed at the other ends of the two cutter bars correspondingly. According to the cutter bar device, the cutter bars and the cutter frame are positioned through U-shaped grooves and fixed through the threaded fasteners, so that the installation of the cutter bars and the cutter frame is stable, relative sliding and relative rotation between the cutter bars and the cutter frame are prevented, and machining precision and percent of pass of workpieces are improved.

Description

technical field [0001] The invention belongs to the technical field of machining, and relates to a cutter rod device, in particular to a multifunctional numerical control lathe cutter rod device. Background technique [0002] At present, the tool holders of most CNC lathes are divided into purchased standard tool holders and self-made cutter holders; The tool holder of the lathe can hold up to 4 tools, and can only process 4 types of workpieces at most. Some complex products require more than 4 types of tools for processing, and the tool holder needs to be manually replaced up and down to complete the processing. In this way, the efficiency of manual work is low and the cost of the enterprise is increased; the surface of the traditional round tool holder is smooth, and the tool holder and the machine tool clamping head are easy to slip during the processing, which affects the quality of the processed parts. precision. [0003] Chinese invention patent (CN 104551056 A) disc...

AI Technical Summary

Problems solved by technology

[0004] However, the tool clamping device provided above uses clamping grooves installed around the tool holder, and the structure of each clamping groove is not the same, which increases the complexity of the assembly of the clamping device, and the distance between the tool holder and the clamping groove There is no positioning structure between them, making the installation of the clamping groove imprecise

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