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Numerical control processing parameter optimizing method

A technology of processing technology and optimization method, applied in the direction of program control, computer control, general control system, etc., can solve the problems of easy operator fatigue, limitation, reduce the feed speed value, etc., to save cutting time, enhance cutting performance, The effect of optimizing cutting parameters

Inactive Publication Date: 2013-06-05
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because it requires the operator's full attention, it makes the operator tired easily
Moreover, the operator often changes the feed rate by reducing the feed rate value, and most CNC systems will be very limited in their ability to increase the feed rate

Method used

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Examples

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Embodiment 1

[0056] A method for optimizing the process parameters of CNC machining. The specific requirements for optimizing the feed rate are as follows:

[0057] First read the CNC tool path file, and divide the prop motion path into many smaller segments, the size of each segment is 0.25 to 0.5 times the tool diameter; then according to the amount of material to be cut in each segment (cutting depth × Chip width×segment length), for each cutting situation encountered (cut-in, radian, cut-out, empty cutting), assign the best feed rate:

[0058] 1) When cutting in, take 0.25-0.5 times the tool diameter distance of the initial cutting area, and set the feed rate to 50%-75% of the normal value;

[0059] 2) In the stable cutting zone, adjust the feed speed according to the amount of cutting material per unit time;

[0060] 3) The last 0.25 times the tool diameter distance in the cutting area is set to retract, and the speed will be 50%-75% of the normal value. According to the state of the part, se...

Embodiment 2

[0081] According to the guiding ideology described in embodiment 1, this embodiment specifically uses the optimization module OptiPath of the vericut software to perform program optimization, which reads the CNC tool path file and divides the motion into many smaller segments. If necessary, according to the amount of material to be cut in each segment, the software assigns the best feed rate for each cutting situation encountered. Then it generates a new tool path, the new path is the same as the original path but the feed rate is improved. In areas where a small amount of material is cut, Optipath increases the feed rate. When more material is cut, it reduces the feed rate. This prevents the tool from breaking and prevents the machine from exceeding its horsepower. Where possible, a similar high feed rate is maintained, but compared to a situation where the feed rate is slightly reduced for each pass, the software provides greater cutting efficiency and requires less time. ...

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Abstract

The invention provides a numerical control processing parameter optimizing method. The numerical control processing parameter optimizing method is used for optimizing a feeding speed, and comprises the following steps of: reading a path file of a numerical control tool, and dividing a motion path of the tool into a plurality of small segments, wherein the dimension of each segment is 0.25-0.5 folds of the diameter of the tool; and distributing an optimal feeding rate as for respective cutting conditions (cut-in, pick-up arc, cut-out and empty cutting) according to the quantity (cutting depth X cutting width X length of the segment) of cut material in each small segment so as to generate a new tool path, wherein the new path is the same as the original path with increased feeding rate. Compared with the prior art, cutting parameters are optimized; and other cutting performances are also obviously enhanced at the same time as cutting time is greatly saved.

Description

technical field [0001] The invention relates to mechanical processing technology, and in particular provides a numerical control processing technology parameter optimization method. Background technique [0002] In the current state of the art, high-efficiency machining (cutting a part in the least amount of time) is the goal of a manufacturing plant looking to increase productivity. Many manufacturers choose to run the machine at or near the machine's maximum feed rate using light cutting and a step-down approach to the feed rate. This high-speed technology is attractive because the machine moves as fast as it can. However, this strategy creates many inefficient paths and defeats the goal of reducing processing time. While doing so means that there is never a breakage of the tool due to excessive metal removal rates, this machining technique does not cut efficiently. [0003] Achieving the shortest cutting time is not related to the feed rate, but is a direct result of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/4097
Inventor 周代忠师俊东陈雅莉吴旭刚刘德生
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION