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Numerical control processing parameter optimizing method

An optimization method and processing technology technology, applied in the direction of program control, computer control, general control system, etc., can solve the problems of 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: 2012-01-25
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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  • Numerical control processing parameter optimizing method
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  • Numerical control processing parameter optimizing method

Examples

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Effect test

Embodiment 1

[0054] A method for optimizing process parameters of numerical control machining, the specific requirements for optimizing feed speed are as follows:

[0055] First read the CNC tool path file, and divide the motion path of the prop into many smaller segments, the size of each segment is 0.25 times to 0.5 times the diameter of the tool; then according to the amount of material to be cut in each segment (cutting depth × Chip Width × Segment Length), assigning the optimum feed rate for each cutting situation encountered (entry in, engagement arc, exit, empty cutting):

[0056] 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;

[0057] 2) In the stable cutting area, adjust the feed rate according to the amount of cutting material per unit time;

[0058] 3) The distance of the last 0.25 times the tool diameter in the cutting area is set as the tool retraction, and the speed will be...

Embodiment 2

[0079]According to the guiding idea described in Embodiment 1, this embodiment specifically uses the optimization module OptiPath of the vericut software to optimize the program, which reads the NC tool path file and divides the motion into many smaller segments. When necessary, the software assigns the optimum feed rate for each cutting situation encountered, based on the amount of material being cut within each segment. It then generates a new toolpath that is identical to the original but with an improved feed rate. In areas where small amounts of material are removed, Optipath increases the feed rate. It reduces the feed rate when more material is being removed. This prevents tool breakage and stops the machine from exceeding its horsepower. Where possible, a similarly high feed rate is maintained, but the software provides greater cutting efficiency and takes less time than if the feed rate is slightly reduced on each pass. The updated information is applied to the new...

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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 method for optimizing parameters of numerical control processing technology. Background technique: [0002] In the prior art, high-efficiency machining (cutting a part in the least amount of time) is the goal of a manufacturing plant wishing 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 achievin...

Claims

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Application Information

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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
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