A real-time temperature control system for progressive forming with self-resistance electric heating
A real-time control system and progressive forming technology, applied in the direction of temperature control, control/regulation system, non-electric variable control, etc., can solve the problems of long temperature adjustment time, unstable temperature control, etc., achieve good auxiliary effect, eliminate temperature instability Stable and avoid the effect of adjusting for too long
Active Publication Date: 2021-09-24
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
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Problems solved by technology
Therefore, it is absolutely necessary to provide an online temperature control system that can effectively solve the problems of unstable temperature control and long temperature adjustment time in the progressive forming process of self-resistance heating
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[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0032] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0033] Such as figure 1 As shown, the present invention provides a self-resistance electric heating progressive forming temperature real-time control system, including a host computer 1, a temperature control unit...
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The invention provides a self-resistance electric heating incremental forming temperature real-time control system and method. The control system includes: a host computer, a temperature control unit, a forming unit and a DC power supply; the host computer is connected with the temperature control unit; the temperature control unit, the forming unit and the The DC power sources are connected in turn. The control method includes: the upper computer sets the initial temperature, and calculates the effective current based on the temperature prediction model; the upper computer issues a power-on command to control the temperature control unit to collect the forming temperature of the forming unit; the temperature control unit performs signal conversion on the temperature value of the forming area; The machine compares the temperature value of the forming area with the preset temperature, obtains the temperature adjustment amount, controls the temperature control unit, adjusts the current size, and performs online temperature control. The invention can eliminate the adverse effects of temperature instability, too high and too low on product quality, realize online rapid temperature control and temperature control, and avoid the disadvantage of long adjustment time of the traditional control system.
Description
technical field [0001] The invention relates to the technical field of sheet metal plastic forming, in particular to a real-time control system and method for progressive forming temperature by self-resistance electric heating. Background technique [0002] Self-resistive electric heating progressive forming technology has the advantages of rapid prototyping, moldless forming, fast heating and simple heating device. The demand for rapid prototyping of personalized structural parts of high-performance light alloy materials in the field. Based on the original progressive forming technology, this technology adopts a self-resistance electric heating method that generates a large amount of Joule heat instantly through a large current to process this type of material, which promotes the development of progressive forming technology. The forming manufacture of poor lightweight alloys is of great significance. [0003] At present, the commonly used single-point electric-assisted h...
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IPC IPC(8): B21D31/00G05D23/27
CPCB21D31/005G05D23/27
Inventor 鲁世红薛澄澄高越
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS