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A Robust Method for Predicting the Shape of Chip Flutes in Solid Tool

A technology of overall tooling and prediction methods, applied in the direction of manufacturing tools, other manufacturing equipment/tools, instruments, etc., to achieve the effect of improved robustness, good robustness, and good robustness

Active Publication Date: 2019-11-19
HUAWEI TEHCHNOLOGIES CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the problem that the existing methods cannot solve the problem of the sharpening chip pocket model of the grinding wheel with discontinuous points, although a prediction method for the sharpening chip pocket model of the grinding wheel with any shape at any position is proposed in the existing method, this method is only applicable to When the groove width is less than 180 degrees

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  • A Robust Method for Predicting the Shape of Chip Flutes in Solid Tool
  • A Robust Method for Predicting the Shape of Chip Flutes in Solid Tool
  • A Robust Method for Predicting the Shape of Chip Flutes in Solid Tool

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Embodiment Construction

[0026] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings;

[0027] Such as Figure 1-6 As shown, a robust overall tool chip flute shape prediction method described in the present invention includes the following steps:

[0028] Step l: Obtain the outer contour surface and Z of the grinding wheel during the chip flute sharpening process T = 0 coordinate plane intersection coordinate p i =(x i ,y i );

[0029] Step 2: According to the coordinate p of the intersection point in step 1 i =(x i ,y i ) to get each intersection point p i with the coordinate origin O Tdistance Form n×3 order matrix P=[X, Y, D], wherein, O T Fixed coordinate system O for the tool T -X T Y T Z T The origin of the coordinates in p i The value is obtained from step 1, the subscript i represents the serial number of the point, the value of i is a natural number from 1 to n, n is the total number of intersection points, and X...

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Abstract

The invention provides a strong-robustness solid tool chip groove shape prediction method which is used for assisting in planning and inspecting a cutter grinding process in a process of manufacturing a solid tool. The method is based on a practical cutter grinding process, adopts a graphical method to make model solving free of limit of shape of the contour of a grinding wheel and adopts a matrix solution to fully exploit the advantages thereof, so that the modeling precision, speed and robustness of a built chip groove model are greatly improved; it is proved that the precision is high, the robustness is great and the method is suitable for various groove profiles of chip grooves with the groove width less than 358 degrees and grinding wheels of various positions and shapes.

Description

technical field [0001] The invention relates to the field of sharpening modeling methods for chip flutes of integral tools, in particular to a method for predicting the shape of chip flutes of integral tools with strong robustness. Background technique [0002] Chip flute is one of the key structures of end mills, drills and other integral tools. Its shape accuracy directly affects the actual radial rake angle, core thickness, stiffness, cutting edge strength and chip capacity of the tool. However, the chip flute of the overall tool is a helical surface with complex space, and the grinding wheel is usually used to grind the flute, which has high processing cost and low efficiency. With the continuous emergence of new difficult-to-machine materials such as titanium alloys, nickel-based alloys, and high-temperature alloys, as well as new difficult-to-machine structural features such as thin-walled parts and special-shaped parts, the shape of the overall tool chip flute is deve...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50B24B3/00
CPCB24B3/00G06F30/17
Inventor 李国超周宏根刘珊李纯金李磊田桂中王新彦刘金峰景旭文
Owner HUAWEI TEHCHNOLOGIES CO LTD