Multishaft motor controlled digital processing system
A technology for processing systems and shaft motors, applied in digital control, electrical program control, etc., can solve the problems of waste of design effort and production costs, cost increase, maintenance and update difficulties, etc.
Inactive Publication Date: 2008-01-30
CITY UNIVERSITY OF HONG KONG
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Problems solved by technology
[0003] The consequences of this inconsistency in design and inability to integrate the structure are, first, maintenance and update difficulties, because maintenance personnel have to remember the different circuits of each machine, and store a large number of spare parts of different specifications
Second, unnecessary design energy and production costs are wasted, because the functional results of different designs are similar, and the results of their respective production make their respective batches smaller and cost more
The third is that the circuit boards designed independently cannot be exchanged or connected in real time at all, that is, it is impossible to use the intact spare circuit boards used by other machines during maintenance, and it is also impossible to connect any three three-axis circuit board groups into a nine-axis circuit board set, enabling economical efficiency to be further reduced
Method used
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[0024] Embodiments of the present invention will be described in detail below with reference to the above-mentioned drawings. The embodiments shown in the above figures are designed to be used in occasions where the power of a single motor is not greater than 1 kilowatt. Although such a large power is sufficient for most of the current occasions, if you encounter occasions with larger power motors, Those skilled in the art can easily use the corresponding high-power components according to the materials disclosed in the present invention to obtain the effect of the present invention.
[0025] It can be seen from Fig. 1 that the control board of the embodiment of the present invention is a six-layer circuit board of 175*100mm. In the figure, the positions of components are represented by boxes, and the flow of signals is represented by arrows. (narrate the process in words). A main CPU can be seen in the lower part of the middle part of Fig. 1, which is a relatively advanced ...
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The system is composed of a control circuit board, a drive circuit board and a cooling plate. Since current most advanced digital signal processing technique and field programmable gate array technique is adopted in the invention, the system can control and drive three shafts connected to DC servomotor, DC brushless motor or AC servo. Performances of the system are: power is near 1 kw (12 A x 85 V); in control frequency of double ring digital control system, current loop is 20 kHz, and position loop is 4 kHz. RS 232 or RS 485 port is connected to computer, providing I / O capabilities: 4 routes + / - 10 V difference analog inputs with 12 bits resolution; 6 routes and 4 routes of photoelectric insulated digital inputs; 4 routes photoelectric insulated outputs. Software operating platform is utilized to install, debug software, hardware and performances / fault or execute operations. DLL library function makes user possible to develop user's programs under visual C++ environment.
Description
technical field [0001] The invention relates to electrical digital data processing, in particular to a universal multi-axis motor digital control and drive system that can be used in various occasions. (G05B 19 / 18) Background technique [0002] Numerical control technology has been developed for decades, and there are countless special or general numerical control processing systems. For example CN92102156, CN94244503 and CN01237549. No matter what kind of system is composed of three parts, namely the command input part, data processing part and motion execution part. The command input part has developed from the oldest punched belt to a new type of computer. On the surface, it seems to be unified at last, but there are still some compatibility problems between various software in actual use. The motion execution part is developed from stepper motor to DC servo motor, AC motor and so on. All kinds of motors are still in use at the same time. Although the data processing...
Claims
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IPC IPC(8): G05B19/18
Inventor 孙东
Owner CITY UNIVERSITY OF HONG KONG