294results about "Machining working media supply/regeneration" patented technology

The invention relates to trickle electrochemical machining. The liquid level of the electrolyte cell is lower than the machining surface, extracting electrolyte form the cell using its pump, using special electrode nozzle to introduce the electrolyte flowing slowly to the machining area along the radial of the tool electrode and finally returning back to the electrolyte cell from the machining area. The special electrode is made of nozzle clamper, electrode annular tube, nozzle liner and nozzle bushing. It can improve the machining stability, machining precision and micro degree.

The invention relates to a microscale pulse electrolysis jet processing system and a processing method thereof, which belongs to the technical field of electrolysis processing. The microscale pulse electrolysis jet processing system comprises a pulse direct-current power supply, an electrolyte jet injection device, an electrolyte circulating and filtering system, a workpiece installing and fixing system and a worktable motion control system, wherein a filter core body and a nozzle are arranged in the electrolyte jet injection device, are made of metal materials, thereby not only increasing filter effect and eliminating an electrolyte pulsation phenomenon, but also leading the electrolyte to be sufficiently polarized negatively under the function of a high-voltage pulse direct-current electric field and then to transmitted to a position to be processed of a processing workpiece in a high-speed flowing mode, electrochemical anode dissolution is generated at the injection point, the high-quality and efficient processing of microstructures such as small holes, narrow grooves, dimpling pits, and the like are realized by using the numerical control motion of a machine tool worktable.

A machining system is provided and includes a machining tool comprising a spindle, one or more electrodes configured to perform the electromachining, and one or more tool holding elements configure to conductively hold the respective one or more electrodes and be assembled onto the spindle of the machining tool. The machining system further comprises one or more adapters and one or more power sources configured to electrically connect to the respective one or more adapters and the workpiece. The one or more adapters are configured to conductively contact the respective one or more tool holding elements. Further, the machining system comprises one or more machining solution sources provided to pass one or more machining solutions between the workpiece and the respective one or more electrodes. A tool adapter assembly is also presented.

The invention relates to an electrochemical machining method and an electrochemical machining device for a pulsating flow field tube electrode, and belongs to the technical field of electrochemical machining. The method comprises the following steps of: 1, adjusting the flow and the pressure by controlling an action of a spool of a servo valve (9) by a pressure servo execution module (4), and outputting a pulsating electrolyte solution to an electrochemical machining area; 2, modulating a control instruction phase by using a control system of an electrochemical machining machine tool according to a pressure and voltage feedback signal, so that the pressure of the machining area is matched with the voltage pulse rhythm; and 3, dynamically adjusting a feeding speed and the machining voltage by using the control system of the electrochemical machining machine tool so as to machine a hole with a variable section in regular change. The method and the device provided by the invention have important meaning for increasing the flocculent product discharge rate and the machining stability of the electrochemical machining of a neutral saline solution deep hole tube electrode.

Conventional electrochemical machining process requires fixed shaped tool cathodes, which makes retooling time consuming and expensive. Flexible tool cathodes include elastically deformable cathodes that can deform in two or three dimensions and can adapt to the contour of the workpiece while the workpiece is moving relative to the flexible tool cathode. That is, the flexible tool cathode can perform tracing. Certain flexible tool cathodes can be also used for special configurations such corners and edges. The flexible tool cathodes can be used to polish, finish, or shape the workpiece through electrochemical processes.

The invention provides an insulation shielding sleeve material electrolytic machining cathode system and a machining method. The cathode system mainly comprises a sleeve material cathode body, a sleeve material cathode head, an insulation auxiliary block and insulation particles. In the electrolytic method, the flowing mode of electrolyte is side flowing. A workpiece gradually extends into a machined profile protection cavity and pushes the insulation auxiliary block to move synchronously, the surface of the machined part of the workpiece is coated with the insulation particles in the protection cavity in a particle film form. High-pressure gas is blown into the protection cavity from a gas blowing channel and is blown to the machined area at the root of the workpiece. According to the insulation shielding sleeve material electrolytic machining cathode system and the machining method, the electrolyte between gaps of the machined areas of the workpiece can be reduced, a power line on the machined surface of the workpiece is shielded, secondary corrosion of stray currents to the surface of the workpiece is reduced effectively, and the surface quality of the machined profile is improved.

A drive head for a bolt, fastener, coupling, nut or other driveable head made from a less malleable metal such as a powder metal nickel alloy. The drive head has an upper drive portion having at least six convex corners spaced around the outer periphery thereof, each corner terminating in an edge. The drive head also has a lower flange portion adjacent to the drive portion and having an edge extending radially outwardly to at least the edge of each corner. The drive portion and the flange portion of the drive head is formed by subjecting a blank having a generally circular head to electrochemical machining (ECM). A tool is also provided for the ECM method to form the drive portion and flange portion of the drive head.

The present invention discloses a 3-D microfine generating electrolytic processing method and its processing equipment. Said method utilizes the generating electrolytic processing of one electrode to another electrode or mutually-alternative generating electrolytic processing of two electrodes to implement on-line precision manufacture of electrode. Said processing equipment comprises mechanical motion mechanism, control system, pulse power supply, observation device and electrolyte supply system. Besides, said invention also provides the concrete application of said electrode.

An anode as a workpiece, and a cathode opposed to the anode with a predetermined spacing are placed in ultrapure water. A catalytic material promoting dissociation of the ultrapure water and having water permeability is disposed between the workpiece and the cathode. A flow of the ultrapure water is formed inside the catalytic material, with a voltage being applied between the workpiece and the cathode, to decompose water molecules in the ultrapure water into hydrogen ions and hydroxide ions, and supply the resulting hydroxide ions to a surface of the workpiece, thereby performing removal processing of or oxide film formation on the workpiece through a chemical dissolution reaction or an oxidation reaction mediated by the hydroxide ions. Thus, clean processing can be performed by use of hydroxide ions in ultrapure water, with no impurities left behind on the processed surface of the workpiece.

The invention relates a deep hole internal spline electrolytic machining device, which comprises a cathode in a preformed hole of a processed workpiece, a liquid-guiding auxiliary tool, a conductive liquid-guiding rod, and an electrolytic tank communicated with the liquid-guiding auxiliary tool and the conductive liquid-guiding rod, wherein the anode of a power supply is connected with the processed workpiece, and the cathode is connected with the conductive liquid-guiding rod. The electrolytic machining device is characterized in that the cathode has a composite structure and comprises a copper body, a front guiding part, a working cone and a rear guiding part which are matched and arranged on the copper body in turn from the left to the right, and a fluid flow regulator which is arranged in the copper body and corresponds to the working cone consisting of a working front cone and a working rear cone; and the dividing part of the working front cone and the working rear cone is provided with a vertical V-shaped rectifier liquid-increasing tank. The electrolytic machining device has the advantages that: compared with three-side feeding commutation composite cathode processing, the device reduces the cathode processing difficulty, improves the processing reliability, shortens the auxiliary invalid processing time, and has shorter process stub bars, thereby reducing the production cost.

The invention patent discloses an apparatus for electrochemical machining of a mask on a cylindrical surface. The apparatus includes a liquid matching body, a front seal end cover and a rear seal end cover. The liquid matching body includes an external structure layer, a semicircle arc structure layer, an axially through diversion trench disposed between the outer structure layer and the semicircle arc structure layer. The arc surface of the semicircle arc structure is provided with liquid outlet grooves and bosses distributed in a staggered and uniformly toward an axial direction. The adjacent liquid outlet grooves and the bosses have a central angle of 3-10 degrees. The bosses are provided with liquid inlets at equal distances (d) along the axial direction. The front seal end cover and the rear seal end cover are in detachable sealing coupling with two axial ends of the liquid matching body respectively. A drainage groove communicates with the diversion trench. The apparatus in the invention is conducive to the discharge of an electrolytic product in an inter-electrode porous medium filled type mask electrolytic machining method, can improve the flow field uniformity at an anode surface of a cylindrical workpiece, further improves the quality of the electrochemical machining, is especially suitable for electrochemical machining of cylindrical surfaces, and is simple in structure, easy to operate and low in process cost.

A wire electric discharge machine has a function of estimating the time for replacement of a filter based on a use situation for the machine. A time Tr during which the filter is serviceable is calculated according to an equation, Tr=|(Pd−Pn)/ΔP|, based on a fluid pressure variation amount ΔP, a current filter fluid pressure Pn, and a filter life pressure. A remaining available time Td for the filter which takes into account the operation rate of the machine is calculated according to an equation, Td=Tr/W.

The invention provides machining device and method for polishing the blade profile of an integrated bladed disk by applying electrolyte-plasma machining technology, which is characterized in that: an integrated bladed disk work-piece 4 is located and clamped on a machine tool spindle 20, and the integrated bladed disk work-piece 4 is connected with the positive pole of a power supply; a blade part is soaked in an electrolyte 17 in a machine tool working pool 14, and the electrolyte is connected with the negative pole of the power supply; the spindle 20 starts to rotate with a rotational speed N and drives the bladed disk to rotate; and process parameters are set and then polishing machining for the blade profile is performed. The machining device and method for polishing the blade profile of an integrated bladed disk has the following advantages that: continuous machining, efficiency increasing and uniform machining surface can be realized; as well as the automation of polishing machining for the blade profile of integrated bladed disk and batch production with high efficiency and low cost can also be realized.

The invention relates to a rotary marking electrolytic machining method of different-height bosses on the surface of a revolved body, and a cathode system, and belongs to the field of electrolytic machining. The method comprises the following steps that a revolved body tool cathode is adopted, grooves in different depths are formed in the surface of the cathode, and only the side walls of the interiors of the grooves are insulated; the bosses with the identical heights are sequentially divided into I type, II type, III type and the like from small to large according to the heights of the bosses machined on the surface of a workpiece; in the machining process, an electrolyte rushes into a machining area from the side surface, all the cathode grooves are filled with gas simultaneously, and the end surfaces of the bosses are prevented from being corroded; when the feeding amount of the cathode meets the machining requirement of the I type of the boss, a reversing valve in circuit I is switched, the groove corresponding to the I type of the boss is filled with the electrolyte, the end surface of the I type of the boss is continuously dissolved with the feeding of the cathode, and the heights of the bosses tend to be constant; and similarly, with the increase of the feeding amount, reversing valves in other circuits are sequentially switched, and one-time machining on the different-height bosses on the surface of the whole part is completed.

The invention discloses a liquid drainage device used for electrochemical machining of an interelectrode porous medium filling type mask. The liquid drainage device comprises a top cover, a sealing pad, a cathode, a non-metal flexible porous medium, the mask and a workpiece anode, wherein the front face of the cathode is flat, evenly distributed grooves and bosses formed between every two adjacent grooves are formed on the back face of the cathode; the grooves include a round liquid gathering groove located in the center of the cathode, arc drainage grooves located in the other areas except the liquid gathering groove and distributed in a windmill shape, and liquid outlet grooves formed between every two adjacent drainage grooves; the drainage grooves are not communicated with the liquid outlet grooves; liquid inlet holes are formed inside the liquid gathering groove and the drainage grooves; liquid outlet holes are formed inside the liquid outlet grooves; the top cover, the sealing pad, the cathode, the porous medium and the mask are tightly attached to the workpiece anode in sequence from top to bottom, and therefore a core machining unit is formed. The liquid drainage device enables electrolysate to be discharged more easily by directly changing the shape of the cathode, and enables a flow field on the surface of the workpiece anode to be distributed more evenly, thereby improving electrochemical machining quality.

An electrochemical machining apparatus includes a fastening bracket, a first drive member positioned on the fastening bracket, a connecting member, a first electrode connected to the connecting member, a second driving member, a second electrode connected to the second driving member, a moving assembly positioned on the fastening bracket, an electrolytic cell positioned on moving assembly, a pump, and a vacuum pump. The first electrode defines a plurality of liquid collecting grooves spaced from each other. Each liquid collecting grooves defines a plurality of second through holes. At least one liquid collecting groove is connected to the pump, and the other liquid collecting grooves are connected to the vacuum pump. The portion of the second electrode can be inserted into and depart from the second through holes.

The invention discloses an electrochemical machining device comprising a machine tool and a solution supplying system, wherein the machine tool is used for clamping a workpiece and driving a workpiece cathode to move relative to the workpiece in the X-axis direction, the Y-axis direction and the Z-axis direction, and the solution supplying system is used for supplying solution to the workpiece. The electrochemical machining device further comprises a pressure pulse system. The pressure pulse system comprises an air compressor, a gas pulse generator and a gas-liquid mixer, wherein the air compressor, the gas pulse generator and the gas-liquid mixer are sequentially connected. The gas-liquid mixer is connected with the liquid supplying system, mixes gas and liquid intermittently and outputs the gas and liquid mixture to the workpiece cathode. By the adoption of the electrochemical machining device, the pressure pulse system is arranged, and gas is intermittently input and mixed with the work solution, a liquid-state working solution and a gas-liquid two-phase work solution alternately perform; and when the gas-liquid two-phase work solution fills a machining interval, fine bubbles in the electrolytic solution approaches a machined surface and crack due to blockage, in the crack process, quite high pressure and micro-jet are generated, a metallic oxide attached layer prone to generation during electrochemical machining is effectively removed, and therefore the stability of electrochemical machining is improved.

The invention relates to an electrode and machining device and method for electrolytic cutting rapid forming of a turbine disc mortise, and belongs to the technical field of aero-engine turbine disc mortise electric machining. The electrode is a cutting electrode and is used for serving as a tool cathode on an electrolytic machine tool to carry out rapid cutting forming machining on the turbine disc mortise. The machining device adopting the electrode as the cutting electrode comprises a power source, a work box, a turbine disc part, the cutting electrode, a workpiece clamping and locating system and an electrolyte circulating system. The method adopting the device for cutting machining comprises the steps that equipment is mounted, alignment is carried out, a machining gap is adjusted, cutting machining is carried out, machining parameters are controlled in the machining process, after machining is completed, the turbine disc part is rotated to the next station in an indexing manner,and the process is repeated till electrolytic cutting machining of the whole turbine disc mortise is completed. The method adopts the cutting electrode for electrolytic cutting rapid forming, and through the electrolytic cutting rapid forming machining technological process, high-efficiency and high-quality machining of the turbine disc mortise is completed.

The invention relates to a double-channel tube electrode and an electrolytic cutting method thereof and belongs to the technical field of electrochemical processing. The double-channel tube electrodeand the electrolytic cutting method thereof are mainly characterized in that a double-channel metal tube with one end closed is adopted as a tool cathode for electrolytic cutting, wherein arrayed small holes are obliquely formed downward in the wall surface of the outer side of a liquid conveying channel of the double-channel tube electrode, and slightly elongated seams are formed in both sides ofthe wall surface of the outer side of an air conveying channel. During electrolytic cutting, an electrolyte is obliquely ejected from the arrayed small holes downward to increase the downward flow rate of the electrolyte and promote the discharge of electrolysis products, and the efficiency of electrolytic cutting is improved; at the same time, high-pressure gas is ejected from the slightly elongated seams to close the electrolyte in a front-end machining gap, the turbulent diffusion range of the electrolyte in the machining gap is reduced, the electrolytic machining area is reduced, and theelectrolytic cutting precision is improved.

The invention relates to an electrolyte precise control system with real-time adjustable parameters and a working method thereof; and the invention belongs to the technical field of electrolytic machining. The system substantially comprises a turbid fluid tank (3), a buffer tank (5), a clear fluid tank (6), a sample regulating tank (7), a ceramic membrane filter (13), a solid-liquid separation device (1), a cold-heat exchanging device (4), a constant-temperature water bath device (8), a machine tool backflow water tank (2), and a plurality of automatic regulating valves, pumps, sensors, or the like. The system can achieve the automatic control to the turbidity of the electrolyte, can accurately control the temperature of the electrolyte and the flow speed of the electrolyte, can stabilize the ion concentrations of the electrolyte or regulate each ion concentration of the electrolyte as need during the machining process. The electrolyte precise control system with the real-time adjustable parameters can be used in association with a universal electrolytic machine tool, with the requirements to an electrolyte system in the electrolytic machining being substantially satisfied.

The embodiment of the invention discloses an electrolytic machining machine tool for a large-lead multi-roller-path rolling ball nut circular-arc spiral groove. A hollow rotary platform and an XY precise sliding table are arranged above a workbench; a cathode guide rod with a cathode ball head is driven to carry out electrolytic machining on a rolling ball nut semi-finished product piece, so that the technical problem that rotation precision and sealing effect of a rotary shaft are reduced due to the fact that the XY sliding table or a rotating mechanism is arranged under the workbench, and a workpiece is mounted on the rotary shaft which is guided out from the XY sliding table or the rotary mechanism in the prior art. According to the embodiment of the invention, the electrolytic machining machine tool comprises a machine tool body, an electrolyte circulating box, a power supply and a control cabinet.

The invention discloses a focused ultrasonic vibration working solution electrochemical machining device. The device comprises an electrochemical machining unit and an ultrasonic vibration unit. The electrochemical machining unit comprises an electrolyte box, a workpiece fixture and a power supply, wherein the electrolyte box is filled with an electrolyte, the workpiece fixture is arranged in the electrolyte box, a workpiece is fixed to the upper portion of the workpiece fixture and submerged into the electrolyte, a tool is arranged above the workpiece, a feeding mechanism is connected to the upper portion of the tool, and the positive electrode and the negative electrode of the power supply are connected with the workpiece and the tool respectively. The ultrasonic vibration unit can generate high-energy focused ultrasound gathering near the lower end of the tool. According to the device, the circulation and update speed of the electrolyte in electrochemical machining can be increased, electrolysis products between the workpiece and the tool can be discharged and prevented from depositing on the surface of the tool, and the machining efficiency and accuracy can be improved. The invention further discloses a method for carrying out focused ultrasonic vibration working solution electrochemical machining through the device.

The invention relates to a cross joint type cathode feeding and annular liquid supplying mode blade full profile electrolysis system and method, and belongs to the technical field of electrolytic machining. The system comprises a cross joint type cathode system and a circulation auxiliary system; the upper part and the lower part of a blade back cathode and the upper part and the lower part of a blade basin cathode of the cross joint type cathode system are respectively provided with a pair of horizontal tooth-shaped structures; an air inlet side and an air outlet side of the blade back cathode and an air inlet side and an air outlet side of the blade basin cathode are respectively provided with a pair of arc-shaped tooth-shaped structures; the circulation auxiliary system comprises a circulation auxiliary clamp base and a circulation auxiliary block, and full-profile liquid supply is realized. According to the system and the method, the machining accuracy is high.