Real-time dynamic planning method and system for feeding speed

A feed speed, real-time dynamic technology, applied in general control systems, control/adjustment systems, instruments, etc., can solve the problem of limited application range of feed speed planning, and achieve smooth motion process

Active Publication Date: 2018-08-10
SHENZHEN INOVANCE TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a real-time dynamic planning method and system for feed speed in view of the above-mentioned problem of limited application range of feed speed planning

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  • Real-time dynamic planning method and system for feeding speed
  • Real-time dynamic planning method and system for feeding speed
  • Real-time dynamic planning method and system for feeding speed

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Embodiment Construction

[0052] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0053] figure 1 It is a schematic flow chart of an embodiment of the real-time dynamic planning method for feed speed of the present invention, and the method is used for trajectory interpolation of a numerical control system. This embodiment takes a straight line track as an example to specifically describe the method of the present invention. The starting point of the straight line track is (0,0,0), and the end point is (30,40,0) unit (unit, which can be set as required, for example 1 unit is 1mm, 0.5mm, etc.), such as figure 2 shown. The interpolation period of the above dynamic programming ...

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Abstract

The invention provides a real-time dynamic planning method and system for the feeding speed. The real-time dynamic planning method comprises the steps of dividing the process of regulating the speed to the end speed into a first stage and a second stage according to the feeding speed at the current moment and the target feeding speed at the current moment; planning the acceleration changing process of the first stage, and calculating a first moving distance of the first stage according to the acceleration changing process of the first stage; planning the acceleration changing process of the second stage, and calculating a second moving distance of the second stage according to the acceleration changing process of the second stage; and obtaining a target feeding speed curve at the current moment according to the acceleration changing process of the first stage and the acceleration changing process of the second stage when the sum of the first moving distance and the second moving distance is less than or equal to the residual moving distance. The feeding speed planned according to the invention can realize the optimal time, and the real-time dynamic planning method can be suitable for different digital control systems.

Description

technical field [0001] The invention relates to the field of numerical control systems, and more specifically, to a method and system for real-time dynamic programming of feed speed. Background technique [0002] In NC machining, it is necessary to change the feed speed at any time, such as changing the processing feed speed through the magnification adjustment switch or knob, making the processing feed speed follow the hand speed during hand wheel simulation, and making the axis feed during manual movement The speed switches between slow and fast, etc. The response performance of the feed rate directly affects the surface quality and processing efficiency of the machined parts, so the real-time dynamic planning of the feed rate is one of the essential functions in the CNC system. [0003] The real-time dynamic planning of feed speed is to re-plan the subsequent feed speed in real time after obtaining the new target speed value, and the feed speed after re-planning is requi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/416
CPCG05B19/4163G05B2219/36521
Inventor 刘焕
Owner SHENZHEN INOVANCE TECH
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