Introduction Of Machining Center Tool

cutting tool

1. What Are Machining Center Tools:

    The tool used in the machining center is composed of a universal tool (also known as the working head or the tool head) and a tool handle matching the taper hole at the front end of the spindle of the machining center. In the application, according to the requirements of machining center machine tool, fixture requirements, workpiece material performance, processing procedure, cutting amount and other related factors the correct selection of tools. The general principle of tool selection is: easy installation and adjustment of tools, good rigidity, durability and high precision. On the premise of ensuring safety and meeting processing requirements, the length of the tool should be as short as possible to improve the rigidity of the tool.

    In the machining center machine tool, a variety of tools are installed in the tool library, according to the provisions of the program for automatic tool change. Therefore, the standard tool handle must be used in order to make the drilling, boring, expanding, milling and other processes with the tool can be quickly and accurately installed on the machine spindle. Programming personnel should fully understand the structural size of the tool handle used on the machine tool, the adjustment method and the adjustment range, in order to determine the radial and axial size of the tool during programming.

2. Type Of Machining Center Tool:

    The tool used in machining center machine tool must adapt to the characteristics of high speed, high efficiency and high degree of automation of machining center. The tool handle part should be connected with the general tool and installed on the machine spindle. Because of the different types of machining center, the type and size of the tool handle part are not the same. JT (ISO7388) represents the taper shank of machining center machine tool (with manipulator clamping slot), the numbers behind the corresponding ISO taper number, such as 50, 45, and 40 respectively represent the big end diameter of 69. 85, 57. 15 and 44. 45 mm with a 7:24 taper. ST (ISO297) represents the taper shank of a general CNC machine tool (without a manipulator clamping slot), and the numerical significance is the same as that of class JT. BT (MAS403) is used for the Japanese standard MAS403 with a manipulator clamping slot connection.

cutting tool (2)

3.How to Select A Tool:

    The cutting process of tool is very complicated and many factors affect it. Choose to process all kinds of high quality workpiece look for titanium Hao machinery, in milling processing, tool material performance, tool type, tool geometric parameters, cutting speed, cutting depth and feed are affecting the cutting force, thus affecting the whole process system, ultimately affecting the machining accuracy and quality. In the machining center machine tool for processing, the spindle speed is generally at least 1 to 2 times higher than the spindle speed of the ordinary machine tool, therefore, in the machining center for milling processing, select the tool, to make the size of the tool and the surface size of the workpiece to be processed.
    Surface milling should choose not heavy grinding carbide end milling cutter or end milling cutter. Generally use two times to walk the tool, the first walk the tool is best to use the end milling cutter rough milling, along the workpiece surface continuous walk the tool. Select the width of each cutting tool and the diameter of the milling cutter, so that the joint mark does not affect the precision of finishing milling. Therefore, processing allowance is large and uneven, milling cutter diameter to choose smaller.

    When finishing, the diameter of the milling cutter should be selected larger, it is best to contain the whole width of the processing surface. In the actual work, surface semi-finishing and finishing, generally with indexable dense tooth surface milling cutter, can achieve the ideal surface processing quality, even can realize milling instead of grinding. The dense cutter teeth greatly increase the feed speed, thus improving the cutting efficiency. 2 to 4 teeth can be set when cutting the plane.

    In short, machining center machine tool is a more complex system, how to choose correctly according to the actual situation, is the programmer must master. Only to the machining center tool structure and selection have a full understanding and understanding, in the actual work to flexible use, improve work efficiency and safety production.

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