Working principle of metal deburring machine steel polishing machine
Deburring machine is a processing method that utilizes the principle of anodic dissolution of metal in electrolyte to remove excess material from the workpiece. At the beginning of the deburring machine, the shapes of the workpiece anode and the tool cathode are different, and the distance from each point on the workpiece surface to the tool surface is different, so the current density at each point is different. The current density passing through relatively short distances is high, the electrolyte flow rate is often high, and the anode solution speed is fast; On the contrary, the current density passing through the distance is smaller, and the speed of the anodic solution is slower. When the tool is continuously fed, each point on the surface of the workpiece will dissolve at different dissolution rates, and the shape of the workpiece will gradually approach the shape of the tool until the shape of the tool “reflects” on the workpiece, obtaining the desired shape.
The machining gap between the burr machine electrode and the workpiece.
Machining clearance is one of the main factors affecting the machining accuracy of deburring machines, and it is also the main basis for designing tool cathodes and selecting process parameters.
The main function of electrolytes is to transmit current as a conductive medium; Conducting electrochemical reactions under the action of an electric field enables smooth and controllable anodic dissolution; Timely remove the electrolytic products and heat generated in the machining gap, playing a role in updating and cooling. Therefore, the basic requirements for electrolytes should include the following:
It has high conductivity and specific heat capacity; Low viscosity reduces the electrical energy loss and heat generation caused by electrolyte resistance, allowing the electrolyte to have sufficient flow rate between processing gaps; Safe, non-toxic, and less corrosive; Stable ingredients, easy maintenance, and low price. Having good processing characteristics, it can achieve high-speed and uniform dissolution of workpiece materials, and try to avoid the formation of insoluble passivation films; Metal cations in the solution should not deposit on the surface of the tool cathode to maintain the correct shape of the tool cathode contour.
