A cathode tool and method for electrolytically removing burrs in inner cross holes
A cross-hole and cathode technology, applied in the direction of processing electrodes, electrode manufacturing, electric processing equipment, etc., can solve the problems of cathode short-circuit flow field, unevenness, excessive processing, etc., and achieve uniform flow field, large processing gap, and high processing efficiency. Effect
Active Publication Date: 2021-02-26
CHANGZHOU INST OF TECH +1
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Problems solved by technology
[0005] The invention mainly aims at the problems of over-processing, short circuit of the cathode and uneven flow field when electrolytic deburring is carried out on internal intersecting holes of hydraulic valve parts, and provides a cathode tool and method for electrolytic deburring of internal intersecting holes.
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[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0023] The cathode design in electrolytic machining must ensure the requirements of its processing shape, and the cathode structure design also needs to be considered. The structure design refers to the structure of the cathode and the combination of various components. It is necessary to solve the conductivity, insulation, flow field, positioning and sealing of the cathode. question.
[0024] A kind of cathode tool for electrolytic deburring of inner intersecting hole of the present invention such as figure 1 and 2 As shown, it includes the clamping end 1-1, the positioning plane 1-2, and the working end 1-3. The clamping end of 1-1 is the clamping end of the stainless steel cathode tool. Electrolyte, to realize the internal spraying of cathode tool electrolyte. The positioning plane 1-2 is a rectangular positioning reference plane. After the cathode and ...
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Abstract
The invention discloses a cathode tool for removing the burrs in an internal cross hole through electrolysis. The tool comprises a clamping part at one end, and a working part at the other end. The tool is characterized in that the working part is arranged to be a cathode processing area with the space intersecting lines convex, the included angle of the intersecting lines is 90 degrees, the intersecting lines of the cathode processing area is set to rounded transition, a cathode corresponding to a non-processing area of a workpiece is arranged to be a concave structure, the radial diameter ofthe concave area is smaller than that of the convex area, the concave area is coated with an insulating material layer with the thickness smaller than 0.1 millimeter, and the concave structure is used for cutting off a power line leading to the non-processing area of the workpiece. By adopting the technical scheme of the cathode tool for removing the burrs in the internal cross hole through electrolysis, a flow field is uniform when electrolysis is carried out to remove burrs, no liquid-deficient regions exits, the processing efficiency is high, the surface quality is good, the cathode position corresponding to the non-processing area of the part is subjected to insulation treatment, the original accuracy of the part is not affected, the processing area is good in burr removal effect, theprocessing accuracy is good, and the cathode is free of a short circuit or burn, and is long in service life.
Description
technical field [0001] The invention relates to a cathode tool and method for electrolytically removing burrs in inner cross holes, which are mainly used for removing burrs in inner cross holes of hydraulic valve parts, and belong to the technical field of electrolytic processing. Background technique [0002] In the field of machining, the generation of burrs is very common. The existence of burrs will affect the quality of workpieces and hinder the assembly of mechanical systems. For hydraulic system components, if the burrs fall off, the burrs will slide and fall in the tiny working gaps of each hydraulic component, causing the slide valve to be stuck, the filter screen to be blocked, etc., which will lead to accidents and reduce the working performance of the system. [0003] Electrolytic deburring is a new process developed from electrolytic machining, which uses electrochemical anodic dissolution to remove burrs. In the process of electrolytic machining, the current f...
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IPC IPC(8): B23H3/04B23H9/02
CPCB23H3/04B23H9/02
Inventor 干为民王婉婉徐波何亚峰周叙荣
Owner CHANGZHOU INST OF TECH