CN112872514A - High-stability inner cavity electrolytic grinding machining device and method - Google Patents
High-stability inner cavity electrolytic grinding machining device and method Download PDFInfo
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- CN112872514A CN112872514A CN202110043426.5A CN202110043426A CN112872514A CN 112872514 A CN112872514 A CN 112872514A CN 202110043426 A CN202110043426 A CN 202110043426A CN 112872514 A CN112872514 A CN 112872514A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H5/00—Combined machining
- B23H5/06—Electrochemical machining combined with mechanical working, e.g. grinding or honing
- B23H5/08—Electrolytic grinding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H11/00—Auxiliary apparatus or details, not otherwise provided for
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Abstract
The invention discloses a high-stability inner cavity electrolytic grinding machining device and method, which can be used for ultra-precise machining of inner surfaces of hole parts, irregular inner cavity revolution surfaces and the like. High stability inner chamber electrolytic grinding processingequipment is based on the elastic force of the elastic deformation production of spring for negative pole gyro wheel, emery wheel strip, oilstone hug closely in proper order at the work piece internal surface according to anticlockwise, utilize the electrolysis of negative pole and work piece to make the work piece surface soften, reuse emery wheel strip grinding softening layer in proper order again, the oilstone carries out the finish machining, thereby show the increase inner chamber surface precision, reduced the beating of negative pole gyro wheel, increased the processing stability. The device effectively improves the processing precision of the inner cavity, obviously increases the stability of the processing of the inner cavity, avoids the problems that the cathode needs to be replaced when the radius of the conventional electrolytic grinding processing of the inner cavity is changed, the cathode short circuit burn caused by unstable processing and the like, and also improves the processing efficiency of the inner cavity. The invention has novel structure and safe and convenient use.
Description
Technical Field
The invention belongs to the field of high-precision electrolytic grinding processing equipment for mechanical parts, and can be used for high-efficiency high-precision high-stability grinding of inner cavity surfaces of various conductive material parts.
Background
High precision machining of inner cavities of parts has been one of the difficulties in the field of machining, especially for non-circular inner cavity surfaces, and the machining precision determines the fatigue life of mechanical parts and the safety and stability of related structures. Due to the reasons of narrow space and the like, the grinding fluid of the traditional grinding process is difficult to enter the space of the inner cavity, so that the surface of a workpiece is burnt, and the precision of the surface of the inner cavity is further deteriorated. In addition, in order to improve the inner cavity surface machining efficiency, the traditional grinding machining needs to increase grinding feeding, so that the grinding force is increased, the machining stability is further poor, and the shape precision error of a workpiece is large.
Because the work piece radius constantly grow during inner chamber adds man-hour, for preventing the short circuit, the negative pole needs to be changed in general electrolytic grinding processing, and because its electrolysis parameter leads to work piece surface roughness great with reasons such as mechanical grinding mismatching, further leads to the stability variation of its course of working, causes work piece machining precision and machining efficiency to receive the influence at last.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an efficient, high-precision and high-stability inner cavity electrolytic grinding device and method.
The technical scheme adopted by the invention is as follows:
in a first aspect, the invention discloses a high-stability electrolytic grinding device for an inner cavity, comprising:
the chuck is used for clamping a workpiece;
the bracket comprises a first groove, a second groove and a third groove, and the axis of the first groove is vertical to the axis of the second groove; the axis of the third groove is on the same straight line with the axis of the first groove; a grinding wheel strip is inserted in the first groove, a first pressure spring is arranged between the grinding wheel strip and the bottom of the first groove, and the grinding wheel strip is in clearance fit with the first groove wall; oilstones are inserted into the second grooves, a second pressure spring is arranged between the oilstones and the bottoms of the second grooves, and the oilstones are in clearance fit with the walls of the second grooves; and the cathode is inserted in the third groove and is fixedly connected with the groove wall of the third groove, and the bottom of the cathode is provided with a roller which can roll along the inner wall of the workpiece.
As a further technical scheme, in order to further increase the processing stability and absorb the vibration generated in the processing process, the bracket connected with the cathode, the grinding wheel strip and the oilstone in the inner cavity electrolytic grinding processing device is a polytetrafluoroethylene bracket made of a high-damping high polymer material.
As a further technical scheme, the support is connected with a first connecting rod through a connecting piece, the first connecting rod is connected with a second connecting rod through a tension spring, the second connecting rod is connected with a T-shaped support, and the T-shaped support is connected with a guide rail sliding block structure.
As a further technical scheme, a first pin rod is arranged on the first connecting rod.
As a further technical scheme, in order to prevent the oilstone and the grinding wheel strip from sliding out of the first groove and the second groove respectively in the disassembling process, the grinding wheel strip is connected with the first groove through the second pin rod, and the oilstone is connected with the second groove through the third pin rod.
As a further technical scheme, the invention also comprises a red copper electrode, wherein the red copper electrode is connected with the anode of the power supply, and the cathode is connected with the cathode of the power supply.
As a further technical scheme, in order to increase the processing stability and reduce the trouble of replacing the electric brush, one end of the red copper electrode is arranged in the groove of the support frame, and a pressure spring is arranged between the red copper electrode and the groove bottom of the support frame, so that the other end of the red copper electrode is tightly attached to the outer surface of the chuck.
In a second aspect, based on the above high-stability electrolytic grinding device for inner cavities, the invention further provides a processing method, comprising:
clamping a workpiece through a chuck, connecting a cathode to a negative electrode of a direct-current power supply through a lead, and connecting a red copper electrode to a positive electrode of the direct-current power supply through a lead;
connecting an electrolyte pipe joint with an outlet of an electrolyte pump through a plastic pipe;
enabling the grinding wheel strip and the oilstone to respectively compress the first pressure spring and the second pressure spring, moving the supporting part of the first connecting rod along the guide rail and placing the supporting part into an inner cavity of a workpiece; after the workpiece is released, the part supported by the first connecting rod is tightly attached to the right side of the workpiece under the action of the tension spring, and the grinding wheel strip and the oilstone are tightly attached to the inner surface of the workpiece under the action of compressing the first compression spring and the second compression spring; and starting an electrolyte pump and a direct-current power supply, starting a machine tool, and adjusting the rotating speed, the electrolytic current and the electrolytic voltage of the workpiece to realize the high-efficiency, high-precision and high-stability machining of the inner cavity of the workpiece.
The invention has the following beneficial effects:
according to the invention, based on the elastic force generated by elastic deformation of the spring, the cathode roller, the grinding wheel strip and the oilstone are sequentially attached to the inner surface of the workpiece in the anticlockwise direction, the surface of the workpiece is softened by using the electrolytic action of the cathode and the workpiece, the softened layer is ground by using the grinding wheel strip in sequence, and the oilstone is subjected to finish machining, so that the machining precision of each rotation of the surface of the inner cavity is remarkably increased. The workpiece surface is softened based on the electrolytic action between the cathode and the workpiece, so that the grinding force is reduced, the improvement of the machining precision of each rotation and the high damping characteristic of the polytetrafluoroethylene support are combined, the bounce of the cathode roller is reduced, the stability of the electrolytic grinding machining of the inner cavity is improved, and the short circuit burn phenomenon caused by the reasons of the machining stability and the like in the traditional electrolytic grinding machining of the inner cavity is effectively avoided. The invention also avoids the problem that the cathode needs to be replaced because the radius of the electrolytic grinding machining of the inner cavity is reduced in the conventional electrolytic grinding machining of the inner cavity, thereby obviously reducing the non-machining time and increasing the machining efficiency. The invention has novel structure and convenient operation, and can realize the high-efficiency, high-precision and high-stability processing of the surface of the inner cavity.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic diagram of a high-stability electrolytic grinding combined machining device with an inner cavity.
FIG. 2 is a schematic top view of a high stability internal cavity electrolytic grinding hybrid machining device.
Fig. 3 is a schematic diagram of a polytetrafluoroethylene support of a high-stability inner cavity electrolytic grinding composite processing device.
In the figure, 1 is a chuck, 2 is a grinding wheel strip, 3 is a pressure spring, 4 is a workpiece, 5 is oilstone, 6 is an insulating sleeve, 7 is an inner hexagon bolt, 8 is a pin rod, 9 is a pressure spring, 10 is a jaw, 11 is a polytetrafluoroethylene support, 12 is a pin rod, 13 is a fixing bolt, 14 is a bolt, 15 is an electrolyte pipe joint, 16 is a roller, 17 is a cathode, 18 is a connecting rod, 19 is a tension spring, 20 is a red copper electrode, 21 is a pin rod, 22 is a low-voltage direct-current power supply, 23 is a pressure spring, 24 is a support, 25 is a connecting rod, 26 is a fixing bolt, 27 is a T-shaped support, 28 is a guide rail nut, 29 is an insulating plate, 30 is a guide rail, 31 is a support frame, and 32 is a lathe bed component; 33 is a guide rail fixing bolt, 34 is an inner hexagon bolt, 35 is an insulating sleeve, 36 is an insulating plate, and 37 is a supporting plate; 38 is a groove, 39 is a groove, 40 is a screw hole, 41 is a pin hole, 42 is a through hole, and 43 is a groove.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with the directions of up, down, left and right of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
The terms "mounted", "connected", "fixed", and the like in the present invention are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and the terms used in the present invention should be understood as having specific meanings to those skilled in the art.
As described in the background art, the prior art has disadvantages, and in order to solve the above technical problems, the present invention provides a high-stability apparatus and method for electrolytic grinding of inner cavities.
As shown in fig. 1, 2 and 3, the high-stability electrolytic grinding processing device for the inner cavity comprises a chuck 1, a grinding wheel strip 2, a pressure spring 3, an oilstone 5, an insulating sleeve 6, an inner hexagon bolt 7, a pin 8, a pressure spring 9, a jaw 10, a polytetrafluoroethylene support 11, a pin 12, a fixing bolt 13, a bolt 14, an electrolyte pipe joint 15, a roller 16, a cathode 17, a support 18, a tension spring 19, a red copper electrode 20, a pin 21, a low-voltage direct-current power supply 22, a pressure spring 23, a support 24, a support 25, a fixing bolt 26, a T-shaped support 27, a guide rail nut 28, an insulating plate 29, a guide rail 30, a support frame 31, a lathe bed assembly 32, a guide rail fixing bolt 33, an inner hexagon bolt 34, an insulating sleeve 35, an insulating plate 36, a support plate 37, a groove 38, a groove 39, a threaded hole 40.
The chuck 1 is used for clamping a workpiece 4, and the chuck 1 clamps the workpiece 4 through the jaws 10 fixed on the chuck 1, and the specific structure refers to the prior art, and the device belongs to the prior art and is not described herein again.
It should be further noted that an insulating plate 36 is installed on the back side of the chuck 1 for insulating the device.
Further, the workpiece 4 is of a ring structure (see fig. 1), and the jaws 10 hold the outer circumferential surface of the workpiece 4.
As shown in fig. 1, the grinding wheel bars 2, the cathode 17 and the oilstone 5 are located on the inner circumferential surface of the workpiece; the grinding wheel strip 2, the cathode 17 and the oilstone 5 are supported by the same polytetrafluoroethylene support 11.
The polytetrafluoroethylene bracket 11 has a structure as shown in fig. 3, and comprises a body, wherein a groove 39 is formed in the upper part of the body, a groove 38 is formed in the left part of the body, and a groove 42 is formed in the lower part of the body; the groove 39 is vertically arranged, the groove 38 is horizontally arranged, the groove 43 is vertically arranged, and the groove 43 and the groove 39 vertically correspond to each other, that is, the axis of the groove 38 is perpendicular to the axis of the groove 39 and the axis of the groove 43. The body is also provided with a threaded hole 40 and a pin hole 41, the threaded hole 40 is matched with the fixing bolt 13 to realize the connection of the polytetrafluoroethylene bracket 11 and the connecting rod 18, and the pin hole 41 is matched with the pin rod 12.
Wherein, the grinding wheel strips 2 and the cathode 17 are respectively arranged at the upper side and the lower side of the polytetrafluoroethylene bracket 11 and are symmetrically arranged, the grinding wheel strips 2 are arranged in a groove 39 at the upper part of the polytetrafluoroethylene bracket 11 in a clearance fit manner, and a pressure spring 3 is arranged between the grinding wheel strips 2 and the bottom of the groove 39, so that the grinding wheel strips 2 are attached to the inner surface of the workpiece 4 under the action of the elastic force of the pressure spring 3; the cathode 17 is inserted into a groove 43 at the lower part of the polytetrafluoroethylene bracket 11, and the cathode 17 is detachably connected with the polytetrafluoroethylene bracket 11 through a bolt 14; the oilstone 5 is also arranged in a groove 38 horizontally arranged on the polytetrafluoroethylene support 11 in a clearance fit mode, and a pressure spring 9 is arranged between the oilstone 5 and the bottom of the groove 38, so that the oilstone 5 is attached to the inner surface of the workpiece 4 under the action of the elastic force of the pressure spring 9.
One end of a bracket 11 where the oilstone 5 is positioned is vertical to the cathode 17 and the connecting bracket of the grinding wheel strip 2, so that the oilstone is tightly attached to the inner surface of the workpiece 4.
Further, an electrolyte pipe joint 15 is arranged on the cathode 17, and during later actual machining, the electrolyte pipe joint 15 is connected with an outlet of an electrolyte pump through a plastic pipe.
In order to further increase the processing stability and absorb the vibration generated in the processing process, the bracket connected with the cathode 17, the grinding wheel strip 2 and the oilstone 5 in the inner cavity electrolytic grinding processing device is a polytetrafluoroethylene bracket 11 made of a high-damping high polymer material.
Further, in this embodiment, in order to prevent the oilstone 5 and the grinding wheel strip 2 from sliding out of the groove 38 and the groove 39 respectively in the process of withdrawing the workpiece 4, the oilstone 5 is connected with the pin 8, the grinding wheel strip 2 is connected with the pin 21, and the pin 8 passes through the groove 38; the pin 21 passes through the slot 39.
Further, in the embodiment, the ptfe bracket 11 is further connected to one end of the connecting rod 18 through two fixing bolts 13, and the other end of the connecting rod 18 is connected to one end of the connecting rod 25 through a tension spring 19; the other end of the connecting rod 25 is connected with a T-shaped support 27 through a bolt 26, the T-shaped support 27 is connected with a guide rail nut 28, the guide rail nut 28 is matched with a guide rail 30, the guide rail 30 is fixed on a support frame 31 through a guide rail fixing bolt 33, and the support frame 31 is fixed on a lathe bed assembly 32.
Further, the pin rod 12 is arranged on the connecting rod 18, the pin rod 12 is matched with the pin hole 41, the pin rod 12 is held at the later stage, and the processing device is arranged in the inner cavity of the workpiece.
Further, in this embodiment, in order to increase the processing stability and reduce the vibration generated during the processing, the material of the connecting rod 18 still adopts the high damping polymer material polytetrafluoroethylene.
Further, in order to increase the processing stability and reduce the trouble of replacing the brush, the red copper electrode 20 is arranged in the groove in the support 24, the red copper electrode 20 is arranged between the grooves of the support 24, the pressure spring 23 is arranged, so that the red copper electrode 20 is tightly attached to the outer surface of the chuck 1, and the support 24 is fixed on the support frame 31.
The method for processing the workpiece by using the device comprises the following steps:
clamping a workpiece through a chuck, connecting a cathode to a negative electrode of a direct-current power supply through a lead, and connecting a red copper electrode to a positive electrode of the direct-current power supply through a lead; and connecting an electrolyte pipe joint with an outlet of an electrolyte pump through a plastic pipe. The pin rod 8, the pin rod 12 and the pin rod 21 are held by hand, so that the oilstone and the grinding wheel strip respectively compress the compression spring 9 and the compression spring 3, and the supporting part of the supporting rod 18 moves along the guide rail and is placed in the inner cavity of the workpiece. After releasing, the part supported by the bracket 18 is tightly attached to the right side of the workpiece under the action of the tension spring 19, and the oilstone and the grinding wheel strip are tightly attached to the inner surface of the workpiece under the action of the compression springs 8 and 3. And starting an electrolyte pump and a direct-current power supply, starting a machine tool, and adjusting the rotating speed, the electrolytic current and the electrolytic voltage of the workpiece to realize the high-efficiency, high-precision and high-stability machining of the inner cavity of the workpiece.
Finally, it is also noted that relational terms such as first and second, and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a high stability inner chamber electrolytic grinding processingequipment which characterized in that includes:
the chuck is used for clamping a workpiece;
the bracket comprises a first groove, a second groove and a third groove, and the axis of the first groove is vertical to the axis of the second groove; the axis of the third groove is on the same straight line with the axis of the first groove; a grinding wheel strip is inserted in the first groove, a first pressure spring is arranged between the grinding wheel strip and the bottom of the first groove, and the grinding wheel strip is in clearance fit with the first groove wall; oilstones are inserted into the second grooves, a second pressure spring is arranged between the oilstones and the bottoms of the second grooves, and the oilstones are in clearance fit with the walls of the second grooves; a cathode is inserted in the third groove and is fixedly connected with the groove wall of the third groove, and a roller is arranged at the bottom of the cathode and can roll along the inner wall of the workpiece; the cathode is provided with an electrolyte joint.
2. The high-stability electrolytic grinding device with an inner cavity according to claim 1, wherein the stent is a polytetrafluoroethylene stent made of a high-damping polymer material.
3. The high stability electrolytic grinding process device in cavity of claim 1, wherein the bracket is connected to a first connecting rod through a connecting member, the first connecting rod is connected to a second connecting rod through a tension spring, the second connecting rod is connected to a T-shaped bracket, and the T-shaped bracket is connected to the guide rail slider structure.
4. The inside electrolytic grinding apparatus according to claim 1, wherein a first pin is provided on the first connecting rod.
5. The high stability chamber grinder assembly of claim 1, wherein the grinding wheel bar is connected to the first groove by a second pin.
6. The inside electrolytic grinding apparatus according to claim 1, wherein the whetstone is connected to the second groove by a third pin.
7. The high stability electrolytic grinding apparatus for internal cavities of claim 1 further comprising a copper electrode, the copper electrode being connected to the positive pole of the power source and the cathode being connected to the negative pole of the power source.
8. The high stability electrolytic grinding apparatus for machining an inner cavity according to claim 1, wherein one end of the red copper electrode is disposed in the groove of the holder, and a compression spring is disposed between the red copper electrode and the bottom of the groove of the holder, so that the other end of the red copper electrode is tightly attached to the outer surface of the chuck.
9. The high-stability electrolytic grinding device for the inner cavity according to any one of claims 1 to 8, wherein a workpiece is clamped by a chuck, the cathode is connected to the negative electrode of a direct current power supply through a lead, and the red copper electrode is connected to the positive electrode of the direct current power supply through a lead;
connecting an electrolyte pipe joint with an outlet of an electrolyte pump through a plastic pipe;
enabling the grinding wheel strip and the oilstone to respectively compress the corresponding first pressure spring and second pressure spring, moving the supporting part of the first connecting rod along the guide rail and placing the supporting part into an inner cavity of a workpiece;
after the workpiece is released, the part supported by the first connecting rod is tightly attached to the right side of the workpiece under the action of the tension spring, and the grinding wheel strip and the oilstone are tightly attached to the inner surface of the workpiece under the action of compressing the first compression spring and the second compression spring; and starting the electrolyte pump and the direct-current power supply, starting the machine tool, and adjusting the rotating speed, the electrolytic current and the electrolytic voltage of the workpiece to realize the processing of the inner cavity of the workpiece.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110043426.5A CN112872514B (en) | 2021-01-13 | 2021-01-13 | High-stability inner cavity electrolytic grinding machining device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110043426.5A CN112872514B (en) | 2021-01-13 | 2021-01-13 | High-stability inner cavity electrolytic grinding machining device and method |
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| CN112872514B CN112872514B (en) | 2022-10-28 |
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| DE3312604A1 (en) * | 1983-04-08 | 1984-10-11 | Volkswagenwerk Ag, 3180 Wolfsburg | Device for preparing tools of the honing stick or grinding wheel type |
| JP2000141229A (en) * | 1998-11-09 | 2000-05-23 | Nisshin Unyu Kogyo Kk | Electrolytic combined grinding method of metallic work piece by special abrasive material |
| CN2476377Y (en) * | 2001-01-03 | 2002-02-13 | 鞍山市新兴轧机轴承制造有限公司 | Mirror bearing electrolytic grinding processing equipment |
| CN102814562A (en) * | 2012-08-27 | 2012-12-12 | 大连工业大学 | Electrochemical machining apparatus of dispersed suspended cathode |
| CN104014882A (en) * | 2014-06-19 | 2014-09-03 | 山东大学 | Self-centering electrolysis grinding combined machining device for inner hole |
| CN104128684A (en) * | 2014-07-21 | 2014-11-05 | 江苏海迅实业集团股份有限公司 | Method for extremely fine grinding and finishing surface of cam of internal combustion engine camshaft through electrochemical composite oilstone with reverse pulses |
| CN107262851A (en) * | 2017-07-07 | 2017-10-20 | 泰山学院 | Follow the trail of servo-actuated electrochemical grinding complex machining device and method in ultrasonic vibration auxiliary point of contact |
-
2021
- 2021-01-13 CN CN202110043426.5A patent/CN112872514B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3312604A1 (en) * | 1983-04-08 | 1984-10-11 | Volkswagenwerk Ag, 3180 Wolfsburg | Device for preparing tools of the honing stick or grinding wheel type |
| JP2000141229A (en) * | 1998-11-09 | 2000-05-23 | Nisshin Unyu Kogyo Kk | Electrolytic combined grinding method of metallic work piece by special abrasive material |
| CN2476377Y (en) * | 2001-01-03 | 2002-02-13 | 鞍山市新兴轧机轴承制造有限公司 | Mirror bearing electrolytic grinding processing equipment |
| CN102814562A (en) * | 2012-08-27 | 2012-12-12 | 大连工业大学 | Electrochemical machining apparatus of dispersed suspended cathode |
| CN104014882A (en) * | 2014-06-19 | 2014-09-03 | 山东大学 | Self-centering electrolysis grinding combined machining device for inner hole |
| CN104128684A (en) * | 2014-07-21 | 2014-11-05 | 江苏海迅实业集团股份有限公司 | Method for extremely fine grinding and finishing surface of cam of internal combustion engine camshaft through electrochemical composite oilstone with reverse pulses |
| CN107262851A (en) * | 2017-07-07 | 2017-10-20 | 泰山学院 | Follow the trail of servo-actuated electrochemical grinding complex machining device and method in ultrasonic vibration auxiliary point of contact |
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