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Non-programming electronic cam curve generating method for transection

An electronic cam and curve generation technology, applied in the direction of program control, program control, electrical program control, etc. in the sequence/logic controller, can solve the problems of complex implementation steps and large amount of calculation, and achieve simplified operation and freedom from programming. , the effect of high reliability

Active Publication Date: 2017-02-15
威科达(东莞)智能控制有限公司
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Problems solved by technology

However, this method needs to collect data at multiple locations and calculate the curve expression, the implementation steps are complex and the calculation is large

Method used

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  • Non-programming electronic cam curve generating method for transection
  • Non-programming electronic cam curve generating method for transection
  • Non-programming electronic cam curve generating method for transection

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Embodiment Construction

[0023] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with specific embodiments and accompanying drawings, and the contents mentioned in the implementation modes are not intended to limit the present invention.

[0024] first step:

[0025] The speed formula (2), acceleration formula (3) and jerk function formula (4) are obtained by differentiating the dimensionless basic function formula (1) of the position of the slave axis relative to the position of the main axis. The jerk is the change in acceleration. The arguments are all dimensionless values ​​of the principal axis position:

[0026] Y=F Y (X)=D 0 +D 1 X+D 2 x 2 +D 3 x 3 +D 4 x 4 +D 5 x 5 (1)

[0027] V=F V (X)=D 1 +2D 2 X+3D 3 x 2 +4D 4 x 3 +5D 5 x 4 (2)

[0028] A=F A (X) = 2D 2 +6D 3 X+12D 4 x 2 +20D 5 x 3 (3)

[0029] J=F j (X)=6D 3 +24D 4 X+60D 5 x 2 (4)

[0030] Step two:

[0031] A...

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Abstract

The invention provides a non-programming electronic cam curve generating method for transection. The method comprises: differential processing is carried out based on fifth-power non-dimensionalized position relation function to obtain a speed function, an acceleration function, an accelerated acceleration function; according to different cutting lengths, equation coefficients are calculated by selecting different conditions; conversion between a non-dimensionalized value and a true value is carried out on the functions; and then coordinate offset processing is carried out to obtain piecewise functions. According to the invention, an electronic cam curve can be generated only by setting three parameters: a parameter knife perimeter, a total synchronzi9ation length, and a cutting length; and generation of a reverse speed of a driven shaft is avoided based on calculation. For the electronic cam curve generated by using the method in the transection field, the operation and debugging of the filed operator can be simplified; programming is avoided; and the reliability is high. The speed curve is a fourth-power function that is more flexible and smoother by compared with a third-power function.

Description

technical field [0001] The invention belongs to the technical field of electronic cams, in particular to a programming-free electronic cam curve generation method for cross-cutting. Background technique [0002] Electronic cam control has been widely used in my country's automation industry in recent years. Its principle is to obtain the position and speed of the main shaft, check the electronic cam curve, and obtain the position and speed of the slave shaft, so as to realize the meshing motion of the main shaft and the slave shaft. Electronic cam curve generation is a key part of electronic cam control. For example, the Chinese invention patent "A Method for Generating Electronic Cam Curves" describes a method. By giving the position points of the master and slave axes, the position of the main shaft is parameterized, and the interpolation operation of the spline function is used to obtain the distance between the position points. The curve expression of , so as to obtain ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/06
CPCG05B19/063G05B2219/34343
Inventor 王浩吴国赛周义仁卢东
Owner 威科达(东莞)智能控制有限公司
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