Hard alloy cutter preparation system and method

Abstract

The invention discloses a hard alloy cutter preparation system and method, and relates to the technical field of alloy cutters. A cutter bracket is arranged on the Z axis of equipment through a mounting hole; the Z axis of the equipment is provided with a laser device through a fastening bolt on a second containing hole; a high-precision position sensor is fixed to the center area of a C-axis working rotary table of the equipment; a high-precision position sensor signal acquisition and processing board is fixed to a base, is used for processing signals acquired by the high-precision position sensor and converting the signals into recognizable digital signals, is arranged on an equipment plane and is independently connected with the high-precision position sensor and an upper computer; anda hard alloy cutter made of an improved material is placed on the base. According to the hard alloy cutter preparation system and method, the machining precision can be accurately predicated; the overall analysis precision is 99.2% and can meet the requirements of enterprises; the time needed by using a big data analysis method can be reduced to 2 / 3 that of a traditional method; and when the datasize is further increased, operation still can be quick with the big data analysis method.

Description

technical field [0001] The disclosure of the present invention relates to the technical field of alloy cutting tools, in particular to a preparation system and method of cemented carbide cutting tools. Background technique [0002] WC-Co cemented carbide has many excellent properties such as high hardness, high strength, high temperature resistance, and corrosion resistance. It is a tool material widely used in the CNC tool manufacturing industry. This alloy is composed of a large amount of refractory metal carbide (WC) and a small amount of binder metal (Co) and is prepared by powder metallurgy. Its mechanical properties mainly depend on the grain size of WC and the content of Co in the binder phase. Generally, under the same WC grain size, with the decrease of Co content, the hardness and wear resistance of the material increase, but the strength and toughness decrease. For CNC tools such as cemented carbide drills, milling cutters and indexable inserts, in the metal cutt...

AI Technical Summary

Problems solved by technology

In the field of numerical control machining, when the workpiece is processed when the cemented carbide substrate is prepared, the auxiliary time such as workpiece loading and unloading, tool adjustment, etc., occupies a large proportion in the entire processing process, and the adjustment of the tool is time-consuming and laborious, and it is easy to produce Errors, especially after the tool is installed, the coordinate center needs to be recalibrated, etc., which requires a lot of time and energy

[0010] In order to solve the above problems, prior art 1 provides a kind of 3D printing equipment. At present, there is no more standardized centering device and method. When the prior art calibrates the center position, a laser with relatively high power (about 200mW) is installed at Z On the axis, the laser is perpendicular to the C-axis working platform, and then lay a piece of hard material on the C-axis, rotate the C-axis 360°, observe the sintering trace of the laser on the C-axis hard material, and gradually shrink according to the radius of the sintering track The size of the radius will achieve the centering effect until the laser is sintered to a point. This method is repeated many times and takes about 1 hour, and there is a large error in the trajectory burned out by the laser (the error is about 0.3mm), which is time-consuming. Laborious and not very accurate

[0011] Furthermore, in NC machining, using the eccentric rod to center the blank requires moving the blank in four directions, that is, when the eccentric rod touches the blank, the position coordinates of the blank edge can be determined, and the operation is repeated. After the four sides, determine the center of the blank. This method not only requires cumbersome steps such as tool change, but also takes a lot of time; ③Use the dial indicator to center the rotary workpiece, and rotate it within a range of 360°C Axis work turntable 10, in the process of slow rotation, record the reading of a dial indicator every 45°, and then record it at eight points. In this process, adjust the center of the workpiece according to the value until it meets the processing requirements; Disadvantages : Alignment with a dial indicator not only requires repeated back and forth measurements, but also troublesome reading, easy to make mistakes, and takes a lot of time, and the alignment of the dial indicator can only be centered on the surface of revolution

[0016] 1) Due to the small size of the channel, the coolant will generate a large flow resistance when flowing through the channel;

[0017] 2) Due to the large temperature change of the coolant between the inlet and outlet of the channel, the temperature distribution of the heat exchange surface is uneven

[0018] 3) Due to the sharp side of the channel, the fluid boundary layer is continuously separated, which brings greater frictional resistance; increases the pressure drop of the fluid; it is easy to form a wake vortex stagnation zone, which is not conducive to heat exchange

[0028] Considering that the existing technology is difficult to deal with the amount of data above the PB level, and in the case of processing a large amount of data, the analysis and calculation process takes a long time, the real-time performance is poor, and the accuracy is difficult to guarantee, so it is no longer suitable for the requirements of modern enterprises

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