TWI615225B - Electrochemical processing device - Google Patents

Abstract

The invention relates to an electrochemical machining device, which may include a machining electrode, a driving module, a spacer and a conductive electrode, the machining electrode has an electrochemical machining area, the driving module drives the machining electrode, and the spacer is adjacent to In the processing electrode, the conductive electrode is adjacent to the spacer, and the spacer separates the conductive electrode and the processing electrode. When the electrochemical machining device performs electrochemical machining, the driving module drives the machining electrode, and one of the machining surfaces of the movable machining electrode is movable.

Description

Electrochemical processing device

The invention relates to a processing device, especially an electrochemical processing device.

Generally, when machining thin workpieces by mechanical cutting, it will cause many processing difficulties, such as how to clamp the workpiece, warpage of the workpiece, and how to perform cutting, or may use stamping or grinding to process the workpiece. However, the flash or burr will also be generated on the edge of the workpiece. Therefore, other processing methods need to be used to remove the flash or burr, which leads to problems such as increased manufacturing process, increased processing hours and increased production costs.

In the conventional technology, the edge of the blade is ground by the grinding method to form the blade edge of the blade, however, the grinding direction at the edge of the blade will affect the quality and life of the blade. In addition, grinding will form scratches on the surface of the sheet, which will affect the quality when using the scraper. Therefore, it is necessary to use other processing methods to further surface the scraper.

An object of the present invention is to provide an electrochemical machining device that can perform electrochemical machining.

An object of the present invention is to provide an electrochemical machining device that can separate a conductive electrode and a machining electrode.

An object of the present invention is to provide an electrochemical machining device that can process thin workpieces.

The invention provides an electrochemical machining device, which may include a machining electrode, a driving module, a spacer and a conductive electrode. The machining electrode has an electrochemical machining area, the driving module drives the machining electrode, and the movable machining electrode In a processing surface, the spacer is adjacent to the processing electrode, the conductive electrode is adjacent to the spacer, and the spacer separates the conductive electrode and the processing electrode. In this way, the electrochemical machining device of the present invention can perform electrochemical machining, and can prevent the conductive electrode from contacting the machining electrode.

1‧‧‧Electrochemical processing device

2‧‧‧Workpiece

11‧‧‧Processed electrode

110‧‧‧Electrochemical processing area

13‧‧‧Drive module

131‧‧‧Drive unit

133‧‧‧ Transmission module

135‧‧‧ First transmission wheel

136‧‧‧Second transmission wheel

137‧‧‧ third transmission wheel

138‧‧‧ Fourth transmission wheel

139‧‧‧ First transmission rod

140‧‧‧second transmission rod

141‧‧‧shaft

15‧‧‧ spacer

150‧‧‧Second Perforation

151‧‧‧ First runner

1511‧‧‧DC

1512‧‧‧Circulation channel

1513‧‧‧ entrance

1514‧‧‧Export

153‧‧‧Second runner

17‧‧‧Conductive electrode

170‧‧‧First punch

19‧‧‧cleaning unit

21‧‧‧Dock

23‧‧‧support column

25‧‧‧platform

27‧‧‧Work Guide Module

271‧‧‧Guide wheel

2710‧‧‧Twill

29‧‧‧Pressure parts

31‧‧‧Seal

33‧‧‧Workpiece positioning piece

The first picture: it is a perspective view of an embodiment of the electrochemical machining device of the invention; the second picture: it is another perspective view of an embodiment of the electrochemical machining device of the invention; the third picture: it is the invention Side view of an embodiment of an electrochemical machining device; fourth figure: a cross-sectional view of an embodiment of an electrochemical machining device of the present invention; fifth figure: an enlarged view of area A of the fourth figure; Figure 6: It is another cross-sectional view of one embodiment of the electrochemical machining device of the present invention; Figure 7: It is another cross-sectional view of one embodiment of the electrochemical machining device of the present invention; and. Figure 8: It is another perspective view of one embodiment of the electrochemical machining device of the present invention.

In order for your reviewing committee to have a better understanding and understanding of the features of the present invention and the achieved effects, the examples and detailed descriptions are accompanied by the following explanations:

Please refer to the first and second diagrams, which are perspective views of two different viewing angles of an embodiment of the electrochemical machining device of the present invention. As shown in the figure, the electrochemical machining device 1 of the present invention may include a machining electrode 11, a driving module 13 and a spacer 15. The machining electrode 11 is used for electrochemical machining of the workpiece 2. This embodiment can be used for thin workpieces (or band-shaped workpieces) for continuous Electrochemical processing. The machining electrode 11 has an electrochemical machining zone 110 (as shown in the fifth and seventh figures), which is opposite to the machining surface of the workpiece 2 to be electrochemically machined. In an embodiment of the present invention, the electrochemical machining area 110 is formed relative to the lower edge of the workpiece 2 to perform processing to form a cutting edge, which is only an embodiment of the present invention and does not limit the electrochemical machining device 1 to only this. The spacer 15 is adjacent to the processing electrode 11. When the electrochemical machining device 1 performs electrochemical machining, the driving module 13 drives the machining electrode 11 to move, and the machining surface of the machining electrode 11 can be continuously moved.

Please refer to FIG. 3, FIG. 4 and FIG. 5 together, which are a side view, a cross-sectional view and an enlarged view of the area A of the fourth drawing of an embodiment of the electrochemical machining device of the present invention. As shown in the figure, the electrochemical machining device 1 may further include a conductive electrode 17 adjacent to the spacer 15. The spacer 15 separates the conductive electrode 17 and the processing electrode 11. In this embodiment, the spacer 15 can be an insulator. In this embodiment, the conductive electrode 17, the spacer 15 and the processing electrode 11 can all be in the shape of a disc and be arranged coaxially and vertically. The conductive electrode 17 is coupled to the positive terminal of a power supply module (not shown), and the processing electrode 11 is coupled to the negative terminal. The conductive electrode 17 is in contact with the workpiece 2 to transmit positive power to the workpiece 2. Since the spacer 15 is located between the conductive electrode 17 and the processing electrode 11, the spacer 15 can separate the conductive electrode 17 and the processing electrode 11, and can prevent the conductive electrode 17 from contacting the processing electrode 11, and can serve as a non-electrochemical processing area and electrification The barrier of the processing area, in this embodiment, the non-electrochemical processing area is the area corresponding to the upper half surface (non-processing surface) of the workpiece 2, so that the electrochemical processing of the non-processing surface of the workpiece 2 can be reduced influences.

Since the processing electrode 11 of this embodiment is disc-shaped, its side (circumferential) with curvature is the processing surface, and it is relative to the lower edge of the workpiece 2, so as shown in the fifth and seventh figures, the electrochemical machining The area 110 is an area corresponding to the side surface (processing surface) of the processing electrode 11. The conductive electrode 17 is disk-shaped like the spacer 15, so the side surfaces of the two also have curvature. The side surface of the spacer 15 is adjacent to the side surface of the conductive electrode 17 and the side surface of the processing electrode 11. In one embodiment of the present invention In this case, the outer diameter of the spacer 15 and the conductive electrode 17 are the same and larger than the outer diameter of the machining electrode 11, so that there is a gap between the machining electrode 11 and the workpiece 2.

Due to the process of electrochemical machining of the processing electrode 11, processing products or debris may adhere to the surface. Therefore, in this embodiment, the electrochemical machining device 1 further includes a cleaning unit 19, which corresponds to the side of the machining electrode 11, which is not relative to the workpiece 2, but is a non-electrochemical machining area. The cleaning unit 19 may be a round brush that contacts the side of the processing electrode 11, so when the processing electrode 11 rotates, the cleaning unit 19 can clean the surface of the processing electrode 11. Furthermore, the driving module 13 may further include a driving unit 131 and a transmission module 133. The driving unit 131 is connected to the transmission module 133 to drive the transmission module 133. The transmission module 133 connects the processing electrode 11 and the cleaning unit 19 to drive the processing electrode 11 and the cleaning unit 19 to rotate. In an embodiment of the invention, the driving unit 131 may be a motor.

Please refer to the first and second figures again. In this embodiment, the electrochemical machining device 1 includes a base 21, a plurality of support columns 23 and a platform 25. The support columns 23 are disposed on the base 21. The platform 25 is disposed on the support columns 23. As shown in the third and fourth figures, the transmission module 133 further includes a first transmission wheel 135, a second transmission wheel 136, a third transmission wheel 137, a fourth transmission wheel 138, and a first transmission lever 139. A second transmission rod 140 and a shaft 141. The driving unit 131 is disposed on the platform 25 and connected to the first transmission wheel 135.

The transmission wheels 135, 136, 137, and 138 are all set on the platform 25. The first transmission wheel 135 is connected to the driving unit 131 and meshed with the second transmission wheel 136, and the first transmission rod 139 passes through and is connected to the second transmission wheel 136. Furthermore, the first transmission rod 139 passes through the platform 25, a first through hole 170 of the conductive electrode 17, a second through hole 150 of the spacer 15 and the processing electrode 11. The first transmission rod 139 is connected to the processing electrode 11. When the driving unit 131 drives the first transmission wheel 135, the first transmission wheel 135 drives the second transmission wheel 136 to rotate, and the second transmission wheel 136 drives the first transmission rod 139 to rotate to rotate the processing electrode 11, and the conductive electrode 17 and the spacing The member 15 does not rotate with the first transmission lever 139. As shown in the fifth figure, the guide The electric electrode 17 and the spacer 15 are fixed to each other, and there is a gap between the processing electrode 11 and the spacer 15.

The second transmission wheel 136 meshes with the third transmission wheel 137. The shaft 141 passes through and connects with the third transmission wheel 137, and the shaft 141 is further fixed to the platform 25. The third transmission wheel 137 meshes with the fourth transmission wheel 138. The second transmission rod 140 passes through and is connected to the fourth transmission wheel 138. The second transmission rod 140 further passes through the platform 25 and is further connected to the cleaning unit 19. When the second transmission wheel 136 rotates, the second transmission wheel 136 drives the third transmission wheel 137, and the third transmission wheel 137 drives the fourth transmission wheel 138. The fourth transmission wheel 138 drives the second transmission rod 140 to rotate, and rotates the cleaning unit 19. The rotating direction of the cleaning unit 19 and the processing electrode 11 is the same, and the contacting surfaces of the cleaning unit 19 move in opposite directions, so that when the cleaning unit 19 rotates, the surface of the processing electrode 11 can be cleaned.

Please refer to the fifth, sixth, and seventh drawings together, which are two different cross-sectional views of the enlarged view of the area A of the fourth picture and the electrochemical machining device 1. As shown in the figure, in this embodiment, the spacer 15 has a first flow channel 151. The first flow channel 151 includes a straight flow channel 1511 and a loop flow channel 1512. One end of the direct current channel 1511 is an inlet 1513, and the inlet 1513 is located on the side of the spacer 15. The other end of the direct current channel 1511 is connected to the circulation channel 1512. One outlet 1514 of the circulation channel 1512 corresponds to the processing electrode 11. That is, the inlet 1513 of the first flow channel 151 is located on the side of the spacer 15, and the outlet 1514 of the first flow channel 151 is ring-shaped and corresponds to the processing electrode 11. As shown in the fifth figure, there is a distance between the processing electrode 11 and the spacer 15 as a second flow channel 153, and the second flow channel 153 is connected to the outlet 1514 of the first flow channel 151 and the side of the processing electrode 11, Therefore, the second flow channel 153 communicates with the contact point between the electrochemical machining zone 110 and the cleaning unit 19 and the processing electrode 11 to provide the electrolyte at the contact place between the electrochemical machining zone 110 and the cleaning unit 19 and the processing electrode 11.

Since the first flow channel 151 is located in the spacer 15 and the second flow channel 153 is located between the spacer 15 and the processing electrode 11, the spacer 15 can reduce the electrolyte splashing on the non-machined surface (upper half surface) of the workpiece 2 ). In addition, since the workpiece 2 abuts on the conductive electrode 17 and the spacer 15 has The surface of the arc, so the workpiece 2 will be arc-shaped, which can increase the impact strength of the workpiece 2. As shown in the fifth figure, when the electrolyte flows out of the second flow path 153 and impacts the workpiece 2, the workpiece 2 is arc-shaped to increase the strength against the impact of the electrolyte, which can reduce the surface of the lower half of the workpiece 2 being subjected to electrolysis The vibration caused by the impact of the liquid can improve the quality of electrochemical machining. In addition, there is no object abutting on the side surface (non-machining surface) corresponding to the position of the spacer 15 behind the workpiece 2, so there will be no liquid capillary phenomenon, so that the electrolyte can be prevented from being adsorbed on the rear surface of the workpiece 2 machining.

Please refer to the fifth figure again. A sealing member 31 is disposed on the first transmission rod 139 and located in the spacer 15. The sealing member 31 is provided in the second through hole 150 of the spacer 15 corresponding to the processing electrode 11. The sealing member 31 can block the electrolyte from flowing into the second through hole 150 of the spacer 15 and the first through hole 170 of the conductive electrode 17 from the second flow channel 153.

Please also refer to the eighth figure, which is another perspective view of an embodiment of the electrochemical machining device of the present invention. As shown in the figure, the electrochemical machining device 1 further includes a workpiece guide module 27, which is disposed on one side of the processing electrode 11, the workpiece guide module 27 includes a plurality of guide wheels 271, and each guide wheel 271 has a plurality of diagonal lines 2710, and the grain direction of the diagonal lines 2710 corresponds to the moving direction of the workpiece 2. In one embodiment of the present invention, the grain direction is from the lower right to the upper left, and the moving path of the workpiece 2 is From right to left. In one embodiment of the present invention, the guide wheels 271 are disposed before and after the machining electrode 11, that is, located on the moving path of the workpiece 2. One side of the workpiece 2 abuts against the guide wheel 271. When the electrochemical machining device 1 performs electrochemical machining, the guide wheel 271 of the workpiece guide module 27 rotates, and the guide workpiece 2 moves, and the guide wheel When the 271 rotates in one direction, the pattern of the diagonal 2710 of the guide wheel 271 will cause the frictional force acting on the workpiece 2 to include an upward component force, that is, the diagonal 2710 generates an upward force, thus guiding the workpiece 2 to move upward during the movement In order to further provide the supporting force opposite to the gravity of the workpiece 2, and the upper edge of the workpiece 2 will abut against the lower surface of the platform 25, so that the relative position of the processing electrode 11 and the workpiece 2 can be positioned.

Furthermore, the electrochemical machining device 1 further includes at least one workpiece positioning member 33, which is disposed before or / and behind the workpiece guide module 27. One side of the workpiece 2 abuts the workpiece positioning member 33. When the workpiece 2 moves, one side of the workpiece 2 abuts the workpiece positioning member 33 and the other side abuts the workpiece guide module 27. The workpiece 2 is S-curved (as shown in the seventh figure).

In addition, the electrochemical machining device 1 further includes at least one pressing member 29 which is disposed on the platform 25 relative to the conductive electrode 17. The pressing member 29 can be used to press against one side of the workpiece 2 so that the other side of the workpiece 2 can surely abut against the conductive electrode 17 and the spacer 15. In an embodiment of the invention, the pressing member 29 can be a wheel member, which can rotate as the workpiece 2 moves.

Please refer to the first, fourth, and fifth figures again. When the electrochemical machining device 1 performs electrochemical machining, one side of the workpiece 2 abuts the spacer 15 and the conductive electrode 17. The conductive electrode 17 is connected to a positive power source, and the processing electrode 11 is connected to a negative power source. The surface of the workpiece 2 contacts the conductive electrode 17 and is coupled to the positive power source. The electrolyte flows into the inlet 1513 of the first flow path 151 of the spacer 15 (refer to the sixth and seventh figures), and then flows out from the outlet 1514 of the first flow path 151 to the second flow path 153. The electrolyte flows along the second flow path 153 to the electrochemical machining area 110, that is, the electrolyte is supplied between the processing electrode 11 and the workpiece 2, so that the workpiece 2 can be electrochemically processed.

At this time, since the spacer 15 is located between the conductive electrode 17 and the processing electrode 11, the spacer 15 can prevent the conductive electrode 17 from contacting with the processing electrode 11 to cause a short circuit, and can reduce the electrolyte splashing on the non-processing surface of the workpiece 2. Furthermore, after the electrochemical machining of the processed electrode 11 for a period of time, the processing product or debris may adhere to the surface of the processed electrode 11. The driving unit 131 drives the transmission module 133, and drives the first transmission wheel 135 to rotate to drive the processing electrode 11 to rotate, so that the processing surface of the processing electrode 11 does not move relative to the workpiece 2, and the processing electrode 11 has not been electrochemically processed The section (cleaned surface) is opposite to the electrochemical machining zone 110. Furthermore, the fourth transmission wheel 138 drives the cleaning unit 19 to rotate, and the cleaning unit 19 contacts the surface of the processing electrode 11, which can be The mechanical products or debris attached to the surface of the processing electrode 11 are mechanically removed, and thus the surface of the processing electrode 11 is cleaned.

Please refer to the eighth figure again. During the process of electrochemical machining, a traction device (not shown) pulls the workpiece 2 to move. When a part of the workpiece 2 has been electrochemically processed, the traction device pulls the workpiece 2 Moving forward, so that the section of the workpiece 2 that has not been electrochemically processed is moved relative to the processing electrode 11 and then electrochemically processed. During the movement of the workpiece 2, the side of the workpiece 2 abuts against the guide wheel 271, and the guide wheel 271 guides the workpiece 2 to move. In addition, the pressing member 29 presses the workpiece 2 against the conductive electrode 17 so that the workpiece 2 can be flatly attached to the conductive electrode 17 and the spacer 15. In this way, the workpiece 2 and the conductive electrode 17 can have good conductivity.

In summary, the electrochemical machining device of the present invention may include a machining electrode, a driving module, a spacer and a conductive electrode. The machining electrode has an electrochemical machining area, the driving module drives the machining electrode, and the machining surface of the machining electrode and the spacer are moved Separate the conductive electrode and the processing electrode to prevent the conductive electrode from contacting the processing electrode.

It can be seen from the above that the present invention has indeed reached a breakthrough structure, and has improved the content of the invention, and at the same time can achieve industrial utility and progress. When it complies with the provisions of the Patent Law, the invention patent application is filed according to the law The examination committee of the bureau granted legal patent rights, and is deeply in prayer.

1‧‧‧Electrochemical processing device

2‧‧‧Workpiece

11‧‧‧Processed electrode

13‧‧‧Drive module

131‧‧‧Drive unit

135‧‧‧ First transmission wheel

136‧‧‧Second transmission wheel

137‧‧‧ third transmission wheel

138‧‧‧ Fourth transmission wheel

139‧‧‧ First transmission rod

140‧‧‧second transmission rod

141‧‧‧shaft

15‧‧‧ spacer

19‧‧‧cleaning unit

21‧‧‧Dock

23‧‧‧support column

25‧‧‧platform

Claims (10)

An electrochemical machining device includes: a machining electrode having an electrochemical machining area and coupled to a negative end of a power supply module; a driving module driving the machining electrode and moving the machining electrode A processing surface; a spacer adjacent to the processing electrode, the spacer is an insulator; and a conductive electrode adjacent to the spacer and coupled to the positive terminal of the power supply module; Wherein, the processing electrode, the spacer and the conductive electrode are disc-shaped and are coaxially and vertically arranged, a side surface of the spacer is adjacent to a side surface of the conductive electrode and a side surface of the processing electrode, and the spacer is spaced apart from the The conductive electrode and the processed electrode. The electrochemical machining device as described in item 1 of the patent application range, wherein the electrochemical machining zone is an area corresponding to the side of the machining electrode having an arc, the side of the conductive electrode has an arc, and the spacer The side has a curvature. The electrochemical machining device as described in item 1 of the patent application scope, wherein the driving module drives the machining electrode to rotate, and moves the machining surface of the machining electrode. The electrochemical machining device as described in item 3 of the patent application scope, wherein the driving module further includes a driving unit and a transmission module, the driving unit is connected to the transmission module, and the transmission module is connected to the processing electrode. The electrochemical machining device as described in item 4 of the patent application scope, wherein the conductive electrode and the spacer have a perforation respectively, and the transmission module includes a first transmission wheel, a second transmission wheel and a transmission rod, the The first transmission wheel is connected to the driving unit and meshes with the second transmission wheel, the transmission rod passes through the second transmission wheel, the perforation of the conductive electrode and the perforation of the spacer, and connects the processing electrode, the transmission rod And connected with the second transmission wheel. The electrochemical processing device as described in item 1 of the patent application scope further includes a cleaning unit corresponding to the processing electrode, and the cleaning unit is a round brush. The electrochemical machining device as described in item 6 of the patent application scope, wherein the driving module further includes a driving unit and a transmission module, the driving unit is connected to the transmission module, and the transmission module is connected to the processing electrode and the Clean the unit. An electrochemical machining device as described in item 7 of the patent application range, wherein the conductive electrode and the spacer have a perforation respectively, and the transmission module includes a plurality of transmission wheels, a first transmission rod and a second transmission rod, the The transmission wheels mesh with each other, one of the transmission wheels is connected to the drive unit, the first transmission rod passes through one of the transmission wheels, the perforation of the conductive electrode and the perforation of the spacer, and The processing electrode is connected with the first transmission rod and with the transmission wheel passing therethrough, and the second transmission rod passes through the other transmission wheel of the transmission wheels and is connected with the cleaning unit. The electrochemical machining device described in item 1 of the patent application scope further includes a workpiece guiding module and at least one pressing member, the workpiece guiding module is disposed on one side of the processing electrode, and the workpiece guiding mold The set includes a plurality of guide wheels, and each of the guide wheels has a plurality of diagonal lines. When the guide wheels rotate in one direction, the diagonal lines respectively generate an upward force, and the pressing member is opposite to the conductive electrode. The electrochemical machining device as described in item 1 of the patent application scope further has a second flow channel between the spacer and the processing electrode, the spacer has a first flow channel, one of the first flow channels The inlet is located on the side of the spacer, one outlet of the first flow channel corresponds to the processing electrode, the outlet of the first flow channel is ring-shaped, and the second flow channel communicates with the outlet of the first flow channel and the electrochemistry Processing Zone.