Electrolytic polishing turntable

Abstract

The utility model provides an electrolytic polishing rotating disc which comprises a driving shaft and a bearing disc, the driving shaft and the bearing disc are coaxially fixed, a plurality of positioning portions used for positioning workpieces are evenly distributed on the upper surface of the bearing disc around the driving shaft, and the driving shaft drives the bearing disc to drive the workpieces to rotate circumferentially. The bearing disc comprises a mounting frame and a rotating disc body, the driving shaft and the mounting frame are coaxially fixed, the rotating disc body and the mounting frame are detachably connected, and the positioning part is formed on the upper surface of the rotating disc body. According to the utility model, the problem that the electrolytic polishing equipment which is linearly distributed in a straight line in the prior art occupies a large production space is effectively avoided in a rotary manner, and further, the effect of effectively reducing the production space occupied by the whole electrolytic polishing production line can be achieved.

Description

Technical Field

[0001] The utility model relates to the field of metal surface treatment equipment, and more particularly to an electrolytic polishing turntable. Background Art

[0002] Electropolishing is a method of finishing the surface of a metal workpiece by passing electricity through an electrolyte solution. The electropolishing process primarily involves three steps: pre-cleaning, electropolishing, and post-polishing cleaning. The pre-cleaning and post-polishing cleaning steps are intended to remove chemical contaminants from the workpiece surface before electrolysis and to remove residual electrolytic residue and electrolyte residue from the workpiece surface after electrolysis, respectively. During these steps, the workpiece typically passes through one or more cleaning tanks.

[0003] In the prior art, the pre-cleaning tanks, electrolytic polishing equipment, and post-polishing tanks are arranged in a linear pattern. That is, after a workpiece passes through the pre-cleaning tanks, its inner wall is electrolytically polished by the electrolytic polishing equipment before being transferred to the post-polishing tanks. In the prior art, the electrolytic polishing equipment, serving as a connection between the pre-cleaning tanks and the post-polishing tanks, occupies a large amount of production space in this linear pattern, resulting in a large overall electrolytic polishing production line.

[0004] In view of this, it is necessary to improve the electrolytic polishing equipment in the prior art to solve the above problems. Utility Model Content

[0005] The purpose of the present utility model is to disclose an electrolytic polishing turntable, which effectively avoids the problem of large production space occupied by electrolytic polishing equipment in the prior art that is distributed in a straight line by rotating, thereby effectively reducing the production space occupied by the entire electrolytic polishing production line.

[0006] To achieve the above-mentioned object, the utility model provides an electrolytic polishing turntable, comprising: a drive shaft and a bearing plate, wherein the drive shaft and the bearing plate are coaxially fixed, and the upper surface of the bearing plate has a plurality of positioning portions for positioning the workpiece evenly distributed around the drive shaft, and the drive shaft drives the bearing plate to rotate the workpiece in a circular manner;

[0007] The supporting tray includes a mounting frame and a turntable body. The driving shaft is coaxially fixed with the mounting frame. The turntable body is detachably connected to the mounting frame. The positioning portion is formed on the upper surface of the turntable body.

[0008] As a further improvement of the present invention, the positioning portion includes a positioning seat and a first electrode. The first electrode is formed in a sheet shape on the upper surface of the turntable body and is evenly distributed around the driving shaft. The positioning seat is arranged around the first electrode. The workpiece is placed in the positioning seat from top to bottom so that the bottom of the workpiece contacts the first electrode and forms a passage.

[0009] As a further improvement of the present invention, the support tray includes a rotary plate and a supporting rod, and the driving shaft is coaxially fixed to the rotary plate;

[0010] One end of each of the supporting rods in the longitudinal direction is fixed to the edge of the turntable, and the other end of each of the supporting rods extends in a direction away from the drive shaft. The bottom surface of the turntable body is in contact with the upper surfaces of the supporting rods. A hollow portion is formed in the center of the turntable body, and the annular inner wall of the hollow portion is in contact with the annular edge of the turntable.

[0011] A group of second electrodes is assembled on the upper surface of the turntable corresponding to each first electrode. The second electrode has a liquid inlet and a liquid outlet. Electrolyte is injected into the liquid inlet, and the liquid outlet extends into the opening of the workpiece to fill the interior of the workpiece with electrolyte.

[0012] As a further improvement of the present invention, a through hole is provided in the turntable body at the gap between two adjacent support rods, and a liquid collecting tray is provided below the turntable body. The electrolyte passes through the turntable body through the through hole and is collected in the liquid collecting tray.

[0013] As a further improvement of the present invention, the second electrode includes an electrolytic rod and a liquid guide member, the interior of the electrolytic rod is hollow and the liquid outlet is formed at the bottom end;

[0014] A liquid guiding cavity is formed in the liquid guiding part, the liquid inlet is formed at the top of the liquid guiding part and is connected to the liquid guiding cavity, the liquid guiding part is connected to the end of the electrolytic rod away from the liquid outlet, the diameter of the end of the liquid guiding cavity connected to the electrolytic rod is smaller than the diameter of the liquid inlet, and the electrolyte enters the liquid guiding cavity through the liquid inlet and fills the interior of the workpiece through the liquid outlet.

[0015] As a further improvement of the present invention, the second electrode is assembled on the upper surface of the turntable through a lifting device, and the lifting device includes a lifting frame and a lifting seat. The lifting seat is vertically fixed to the upper surface of the turntable, and the lifting frame drives the electrolytic rod to slide in the height direction relative to the lifting seat so that the liquid outlet of the electrolytic rod extends into the opening of the workpiece.

[0016] As a further improvement of the present invention, it also includes: a frame, the frame is equipped with a driving mechanism, the turntable body is located directly below the driving mechanism as the upper material position and the lower material position, when any first electrode evenly distributed on the surface of the turntable body rotates to the position directly below the driving mechanism, the driving mechanism drives the lifting frame corresponding to the first electrode to drive the liquid outlet of the electrolytic rod to rise in the direction away from the first electrode.

[0017] As a further improvement of the present invention, the driving mechanism includes a driving cylinder, a lifting plate and a driving member. The driving cylinder is mounted on the top surface of the frame, and the driving end of the driving cylinder passes downward through the frame and is connected to the lifting plate. The driving member is mounted on the bottom end of the lifting plate. The lifting frame forms a force-bearing member on the side away from the second electrode. The driving end of the driving cylinder drives the lifting plate to rise, and the driving member applies force to the bottom of the force-bearing member and drives the second electrode to rise.

[0018] As a further improvement of the present invention, the turntable body is formed by splicing together no less than two mounting plates.

[0019] As a further improvement of the present invention, two or more workpieces are placed in the same positioning seat at the same time, the bottoms of the two or more workpieces are in contact with the upper surface of the same first electrode, the lifting frame is equipped with second electrodes with the same number as the workpieces, and the liquid outlets of several second electrodes extend into the opening of each workpiece at the same time.

[0020] Compared with the prior art, the beneficial effect of the present invention is as follows: through the electrolytic polishing turntable composed of a drive shaft and a support tray, and a plurality of positioning parts formed around the drive shaft on the upper surface of the support tray, the workpiece transferred from the previous cleaning tank is placed in the positioning part, and the drive shaft drives the workpiece to rotate circumferentially. During the rotation, the workpiece is electrolytically polished on its inner surface until the workpiece rotates close to the next cleaning tank, and then the workpiece is removed from the support tray and transferred to the next cleaning tank. By driving the workpiece to rotate while electrolytically polishing the inner surface of the workpiece, while ensuring that the inner wall of the workpiece has sufficient electrolytic polishing time, the production space occupied by the entire equipment is effectively reduced compared to the electrolytic polishing equipment with a straight line distribution, thereby enabling the arrangement direction of the next cleaning tank to be changed, thereby achieving the effect of reducing the production space occupied by the entire electrolytic polishing production line. Furthermore, the support tray is composed of a mounting frame and a turntable body. The mounting frame is used to be coaxially fixed with the drive shaft and can provide effective support for the turntable body, thereby ensuring the structural stability of the entire support tray when the workpiece rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a top view of the electrolytic polishing turntable structure of the present invention;

[0022] Figure 2 This is a schematic structural diagram of the utility model used to reflect the supporting tray, the drive shaft and the matching relationship between the various parts;

[0023] Figure 3 This is a structural schematic diagram of the utility model for illustrating a state in which the liquid outlet of the second electrode extends into the opening of the workpiece;

[0024] Figure 4 This is a schematic diagram of the specific structure of the mounting frame used in the present utility model;

[0025] Figure 5 This is a structural diagram of the utility model used to reflect the assembly relationship between the support rod and the turntable body;

[0026] Figure 6 This is a schematic diagram of the specific structure of the lifting device, the second electrode and the positioning part of the present invention;

[0027] Figure 7 for Figure 6 Enlarged view of part A in the middle. DETAILED DESCRIPTION

[0028] The present invention is described in detail below with reference to the various embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in this field based on these embodiments are all within the scope of protection of the present invention.

[0029] Ginseng Figures 1 to 7 This is a specific embodiment of an electrolytic polishing turntable disclosed by the present invention. Compared with the prior art, the electrolytic polishing turntable is composed of a drive shaft 54 ​​and a support plate 1, and a plurality of positioning parts 11 are formed on the upper surface of the support plate 1 around the drive shaft 54. The workpiece 3 transferred from the previous cleaning tank (not shown) is placed in the positioning part 11, and the drive shaft 54 ​​drives the workpiece 3 to rotate in a circle. During the rotation, the workpiece 3 is electrolytically polished on its inner surface until the workpiece 3 rotates close to the next cleaning tank (not shown). The workpiece 3 is removed from the support plate 1 and transferred to the next cleaning tank (not shown). By driving the workpiece 3 to rotate while electrolytically polishing the inner surface of the workpiece 3, while ensuring that the inner wall of the workpiece 3 has a sufficient electrolytic polishing time, the production space occupied by the entire equipment is effectively reduced compared to the electrolytic polishing equipment with a straight line distribution, thereby changing the arrangement direction of the next cleaning tank, so as to achieve the effect of reducing the production space occupied by the entire electrolytic polishing production line. Furthermore, the support tray 1 is composed of a mounting frame 14 and a turntable body 15. The mounting frame 14 is used to be coaxially fixed with the drive shaft 54 ​​and can provide effective support for the turntable body 15, thereby ensuring the overall structural stability of the support tray 1 when the workpiece 3 rotates.

[0030] Ginseng Figures 1 to 7 As shown, in this embodiment, the electrolytic polishing turntable includes a drive shaft 54 ​​and a susceptor 1. The drive shaft 54 ​​is coaxially fixed to the susceptor 1. The upper surface of the susceptor 1 is evenly distributed around the drive shaft 54 ​​to position the workpiece 3. The drive shaft 54 ​​drives the susceptor 1 to rotate the workpiece 3 in a circular manner. The susceptor 1 includes a mounting frame 14 and a turntable body 15. The drive shaft 54 ​​is coaxially fixed to the mounting frame 14. The turntable body 1 and the mounting frame 14 are detachably connected. The positioning frames 11 are formed on the upper surface of the turntable body 15. The pre-cleaned workpiece is placed on the turntable body 15 of the susceptor 1. The mounting frame 14, which supports the turntable body 15, drives the workpiece 3 to rotate under the drive shaft 54 ​​while electrolytically polishing the inner surface of the workpiece 3. The inner surface of the workpiece 3 is electrolytically polished during the rotation process, achieving a good electrolytic polishing effect. When the workpiece 3 rotates a certain angle with the susceptor 1 to approach the next cleaning tank (not shown), it can be transferred to the next cleaning tank. Through the above design, the rotating electropolishing turntable can be driven to rotate one or more times based on the actual electropolishing effect required by the workpiece 3 to achieve a good electropolishing effect on the interior of the workpiece 3. Compared to existing linear electropolishing equipment, it occupies less production space to achieve the same electropolishing effect. Moreover, compared to the existing technology, different electropolishing effects can be achieved by controlling the number of rotations of the workpiece 3 with the support tray 1, which has good adaptability. In addition, the circularly rotating electropolishing turntable, as a transfer device between two cleaning tanks, can effectively reduce the production space occupied by the entire electrolytic cleaning production line, so that the angle between the two cleaning tanks being transferred is 90° or less, thereby reducing the overall length of the electrolytic cleaning production line.

[0031] Ginseng Figures 1 to 7As shown, the positioning portion 11 includes a positioning seat 112 and a first electrode 111. The first electrode 111 is formed in a sheet shape on the upper surface of the turntable body 15 and is evenly distributed around the driving shaft 54. The positioning seat 112 is arranged around the first electrode 111. The workpiece 3 is placed in the positioning seat 112 from top to bottom so that the bottom 31 of the workpiece 3 contacts the upper surface of the first electrode 111 and forms a passage. Specifically, in this embodiment, the workpiece 3 and the first electrode 111 are both made of conductive metal materials. Therefore, as long as the bottom of the workpiece 3 contacts the first electrode 111, the conduction effect can be achieved. The supporting tray 1 includes a turntable 141 and a supporting rod 142, and the drive shaft 54 ​​is coaxially fixed to the turntable 141; one end of the supporting rod 142 in the length direction is respectively fixed at the edge of the turntable 141, and the other end of the supporting rod 142 extends in the direction away from the drive shaft 54. The bottom surface of the turntable body 15 is in contact with the upper surface of the supporting rod 142, and the turntable body 15 forms a hollow portion 152 in the center, and the annular inner wall of the hollow portion 152 is in contact with the annular edge of the turntable 141; a group of second electrodes 2 are assembled on the upper surface of the turntable 141 corresponding to each first electrode 111, and the second electrode 2 has a liquid inlet 21 and a liquid outlet 22. Electrolyte is injected into the liquid inlet 21, and the liquid outlet 22 extends into the opening 32 of the workpiece 3 to fill the interior of the workpiece 3 with electrolyte.

[0032] Ginseng Figure 1 、 Figure 4 and Figure 5 As shown, the turntable body 15 is provided with a through hole 151 in the gap between two adjacent support rods 142, and a liquid collecting tray 13 is provided below the turntable body 15. The electrolyte passes through the through hole 151 through the turntable body 15 and is collected in the liquid collecting tray 13. The turntable body 15 is formed by splicing at least two mounting plates 153. Figure 5 As shown, the turntable body 15 is formed by six mounting plates 153 arranged uniformly and fan-shaped. When assembling the tray 3, after the turntable 141 and the drive shaft 54 ​​are coaxially assembled, a plurality of support rods 142 are assembled to the bottom surface of the turntable 141 near the edge using bolts (not shown) and other connecting members. The plurality of support rods 142 are arranged along the radial direction of the turntable 141. The six mounting plates 153 are then assembled around the turntable 141 so that the bottom surfaces of the mounting plates 153 are in contact with the upper surfaces of the support rods 142 to form the turntable body 15. Finally, the mounting plates 153 are fixed to the support rods 142 using bolts (not shown) and other connecting members.

[0033] In this embodiment, the workpiece 3 is placed on the first electrode 111 with the opening 32 facing upward. The positioning seat 112 disposed around the first electrode 111 positions the outer wall of the workpiece 3 to prevent the workpiece 3 from tipping over due to inertia during rotation. Electrolyte is injected into the workpiece 3 through the liquid outlet 22 of the second electrode 2 in an amount consistent with the internal volume of the workpiece 3. As the workpiece 3 rotates with the support tray 1, power is supplied to the first and second electrodes 111, 112, thereby achieving the purpose of electrolytic polishing the inner wall of the workpiece 3. Compared to the prior art methods that require placing the workpiece 3 in an electrolytic tank or turning the workpiece 3 upside down, this method can achieve the purpose of electrolytic polishing the inner surface of the workpiece 3 without any sealing structure and using just the right amount of electrolyte. Furthermore, when the workpiece 3 is placed upright to inject the electrolyte into the interior of the workpiece 3, there is still the problem of some electrolyte overflowing from the opening 32 of the workpiece 3 onto the surface of the turntable body 15. By providing a through hole 151 in the turntable body 15, the electrolyte that spills onto the surface of the turntable body 15 can be collected into the inner liquid collection tray 13 through the through hole 151, thereby preventing the electrolyte from contaminating the surface of the turntable body 15 and the workspace. In this embodiment, the through hole 151 is provided in the gap between the two support rods 142 of the turntable body 15, so that the electrolyte can smoothly pass through the through hole 151 and be collected into the liquid collection tray 13, thereby preventing the electrolyte from corroding the support rods 142.

[0034] Ginseng Figures 2 to 7 As shown, the electrolytic polishing turntable also includes a frame 5, the second electrode 2 includes an electrolytic rod 23 and a liquid guide 24, the interior of the electrolytic rod 23 is hollow and a liquid outlet 21 is formed at the bottom; a liquid guide cavity 241 is formed in the liquid guide 24, the liquid inlet 21 is formed at the top of the liquid guide 24 and is connected to the liquid guide cavity 241, the liquid guide 24 is connected to the end of the electrolytic rod 23 away from the liquid outlet 22, the diameter of the end of the liquid guide cavity 241 connected to the electrolytic rod 23 is smaller than the diameter of the liquid inlet 21, and the electrolyte enters the liquid guide cavity 241 through the liquid inlet 21 and is filled with the interior of the workpiece 3 from the liquid outlet 22.

[0035] Ginseng Figure 2 and Figure 3As shown, the frame 5 is equipped with a driving mechanism 6, and the turntable body 15 is located directly below the driving mechanism 6 as the loading and unloading positions. When any first electrode 111 evenly distributed on the surface of the turntable body 15 rotates to the position directly below the driving mechanism 6, the driving mechanism 6 drives the lifting frame 41 corresponding to the first electrode 111 to drive the liquid outlet 22 of the electrolytic rod 23 to rise in the direction away from the first electrode 111. In this embodiment, a driving shaft 54 ​​is centrally provided in the turntable 141, and the driving shaft 54 ​​drives the support tray 1 to move in a circular motion. A plurality of first electrodes 111 are evenly distributed on the support tray 1. Each time the driving shaft 54 ​​drives the support tray 1 to rotate once, a first electrode 111 on the surface of the support tray 1 rotates once to the position directly below the driving mechanism 6 (i.e., the loading and unloading positions are located at the same position in this embodiment, see FIG. 1 ). Figure 1 and Figure 3 It should be noted that, in this embodiment, a total of 36 first electrodes 111 are provided on the upper surface of the supporting tray 1 around the driving shaft 54. Therefore, in this embodiment, every time the driving shaft 54 ​​drives the driving shaft 54 ​​to rotate 10°, a first electrode 111 on the upper surface of the supporting tray 1 is located at position C directly below the driving mechanism 6. At this time, the first electrode 111 located at position C is driven by the driving mechanism 6 to rise in a direction away from the first electrode 11 corresponding to the second electrode 2. Specifically, the driving mechanism 6 drives the lifting device 4 equipped with the second electrode 2 of the group to rise, so that there is enough space between the second electrode 2 and the first electrode 11 for the placement of the workpiece 3 (for specific status, refer to FIG. Figure 2 shown).

[0036] The workpiece 3 is placed above the first electrode 111 with the opening 32 facing upward, and the bottom 31 of the workpiece 3 is in contact with the first electrode 11. At this time, the driving mechanism 6 drives the lifting device 4 to move the second electrode 2 downward to the liquid outlet 22 and extend into the opening 32 of the workpiece 3 to fill the interior of the workpiece 3 with electrolyte. Then, each time the support tray 1 rotates with the drive shaft 54, the first electrode 2 evenly distributed on its surface rotates to the position directly below the drive mechanism 6 to facilitate the placement and removal of the workpiece 3 and the injection of electrolyte. The specific action process is consistent with the above and will not be repeated here. After the workpiece 3 rotates one circle with the support tray 1 and rotates again to the position C directly below the drive mechanism 6 (i.e., the discharge position recorded above), the interior of the workpiece 3 has undergone sufficient electrolysis time, achieving a good electrolytic polishing effect.

[0037] Ginseng Figures 2 to 6As shown, the second electrode 2 is assembled to the upper surface of the rotating disk 141 via a lifting device 4. The lifting device 4 includes a lifting frame 41 and a lifting seat 42. The lifting seat 42 is vertically fixed to the upper surface of the rotating disk 141. The lifting frame 41 drives the electrolytic rod 23 to slide relative to the lifting seat 42 in the height direction so that the liquid outlet 22 of the electrolytic rod 23 extends into the opening 32 of the workpiece 3. Specifically, the lifting frame 41 includes a lifting plate 413 and a frame body 414. The lifting plate 413 slides with the lifting seat 42. The frame body 414 is vertically fixed to the side of the lifting plate 413 away from the lifting seat 42. The electrolytic rod 23 is vertically inserted into and fixed within the frame body 414. It should be noted that the lifting base 42 includes a mounting plate 421 and a support plate 422. The mounting plate 421 is vertically mounted on the upper surface of the support tray 1. The support plate 422 is a right-angled triangular plate, with its two right-angled sides respectively aligned with the side walls of the support plate 422 and the upper surface of the support tray 1. A guide rail 423 is provided along the height direction on the side of the mounting plate 421 away from the support plate 422. The lifting plate 413 slides in engagement with the guide rail 423 via a guide block 4121. The frame 414 is vertically mounted on the side of the lifting plate 413 away from the mounting plate 421, and the first electrode 2 is mounted via an assembly 415.

[0038] Ginseng Figure 6 and Figure 7 As shown, the frame 414 has an installation opening (not marked) for the assembly part 415 to pass through. The assembly part 415 includes: an electrode fixing part 4151, an insulating sleeve 4152, a locking nut 4153 and a clamping part 4154. The electrolytic rod 23 constituting the first electrode 2 passes through the electrode fixing part 4151 in the axial direction. The insulating sleeve 4152 is assembled on the outside of the electrode fixing part 4151. The protrusion (not marked) of the electrode fixing part 4151 is in contact with the bottom end of the insulating sleeve 4152. The top of the insulating sleeve 4152 has a protrusion (not marked). The outer wall of the insulating sleeve 4152 is in contact with the inner wall of the installation opening (not marked). The lower surface of the protrusion (not marked) of the insulating sleeve 4152 is in contact with the upper surface of the frame 414. The locking nut 4153 is assembled on the top of the electrode fixing part 4151 and abuts against the upper surface of the insulating sleeve 4152. The clamping part 4154 is as shown in FIG. Figure 5 and Figure 6 As shown, the electrode fixing member 4151 is assembled at the bottom end thereof, thereby achieving the purpose of stably assembling the electrolysis rod 23 on the frame 414. Further, the electrode fixing member 4151 also has a conductive function, and the power supply 53 (see Figure 2 and Figure 3 4 (shown) is electrically connected to the electrode fixing member 4151 to achieve the purpose of supplying power to the entire second electrode 2. It should be noted that in this embodiment, the second electrode 2 is a cathode, the first electrode 11 is an anode, and the electrolyte is a mixed acid solution, preferably a mixture of dilute hydrochloric acid and dilute sulfuric acid.

[0039] Ginseng Figure 2 、 Figure 3 as well as Figure 6 As shown, the drive mechanism 6 includes a drive cylinder 61, a lifting plate 62, and a drive member 63. The drive cylinder 51 is mounted on the top surface of the frame 5. The drive end of the drive cylinder 61 passes downward through the frame and connects to the lifting plate 62. The drive member 63 is mounted on the bottom end of the lifting plate 62. The lifting frame 41 forms a force-bearing member 411 on the side away from the second electrode 2. The drive end of the drive cylinder 61 drives the lifting plate 62 to rise. The drive member 63 applies force to the bottom of the force-bearing member 411 and drives the second electrode 2 to rise. Specifically, the drive end of the drive cylinder 61 drives the drive member 63 downward until it is out of contact with the force-bearing member 411. The frame 41 and the lifting plate 413 move downward along the height direction of the lifting frame 42 until the liquid outlet 22 of the electrolytic rod 23 extends into the opening 32 of the workpiece 3. It should be noted that in this embodiment, the positioning seat 112 is configured as a basket made of a certain elastic material (e.g., plastic, rubber, etc.) to achieve the purpose of positioning the workpiece 3. Place the workpiece 3 into the positioning seat 112 at position C, and extend the driving end of the driving cylinder 61; when the liquid outlet 22 of the first electrode 2 is located in the opening 32 of the workpiece 3 (the specific state is as follows Figure 3 and Figure 6 As shown, the driving end of the driving cylinder 61 is fully extended, and the lifting plate 62, which is connected to the driving end of the driving cylinder 61 via the connecting member 611, drives the driving member 63 to move to the lowest point. At this time, the driving member 63 and the force-bearing member 411 are separated from each other. At this time, the lifting frame 41 is subjected to the force of gravity as a whole, and the guide block 4121 assembled on the lifting plate 413 slides downward along the guide rail 423 of the mounting plate 421 until the positioning member 412 assembled on the lifting plate 413 abuts the upper edge of the guide rail 423. Since the driving member 63 is completely separated from the force-bearing member 411, it can be seen that there is no contact between the driving mechanism 6 and the lifting device 4. Electrolyte is injected into the liquid inlet 21 of the first electrode 2 until the interior of the workpiece 3 is filled. At this time, the driving shaft 54 ​​is rotated again to the next station, where the positioning seat 112 is located at position C directly below the driving mechanism 6.

[0040] Ginseng Figures 1 to 6As shown, two or more workpieces 3 are placed simultaneously within the same positioning seat 112, with the bottoms 31 of the two workpieces 3 in contact with the upper surface of the same first electrode 111. Specifically, in this embodiment, the same first electrode 111 holds two workpieces 3 along its length. The lifting frame 41 is equipped with two or more second electrodes 2. Specifically, since the same first electrode 111 holds two workpieces 3 along its length in this embodiment, the lifting frame 41 is equipped with two second electrodes 2, with the liquid outlets 22 of the two second electrodes 2 simultaneously extending into the openings 32 of the two workpieces 3. When electropolishing the workpieces 3, the same first electrode 111 can be used to hold two workpieces 3 side by side. Then, by inserting the two second electrodes 2 into the openings of the workpieces 3, the inner surfaces of the two workpieces 3 can be electropolished simultaneously, thereby improving the efficiency of electropolishing the workpieces 3.

[0041] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

[0042] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An electrolytic polishing turntable, characterized in that: include: A drive shaft and a bearing tray, wherein the drive shaft and the bearing tray are coaxially fixed, and a plurality of positioning portions for positioning the workpiece are evenly distributed on the upper surface of the bearing tray around the drive shaft, and the drive shaft drives the bearing tray to drive the workpiece to rotate in a circular motion; The supporting tray includes a mounting frame and a turntable body. The driving shaft is coaxially fixed with the mounting frame. The turntable body is detachably connected to the mounting frame. The positioning portion is formed on the upper surface of the turntable body.

2. The electrolytic polishing turntable according to claim 1, characterized in that: The positioning portion includes a positioning seat and a first electrode. The first electrode is formed in a sheet shape on the upper surface of the turntable body and is evenly distributed around the driving shaft. The positioning seat is arranged around the first electrode. The workpiece is placed in the positioning seat from top to bottom so that the bottom of the workpiece contacts the first electrode and forms a passage.

3. The electrolytic polishing turntable according to claim 2, characterized in that: The supporting tray includes a rotary plate and a supporting rod, and the driving shaft is coaxially fixed with the rotary plate; One end of each of the supporting rods in the longitudinal direction is fixed to the edge of the turntable, and the other end of each of the supporting rods extends in a direction away from the drive shaft. The bottom surface of the turntable body is in contact with the upper surfaces of the supporting rods. A hollow portion is formed in the center of the turntable body, and the annular inner wall of the hollow portion is in contact with the annular edge of the turntable. A group of second electrodes is assembled on the upper surface of the turntable corresponding to each first electrode. The second electrode has a liquid inlet and a liquid outlet. Electrolyte is injected into the liquid inlet, and the liquid outlet extends into the opening of the workpiece to fill the interior of the workpiece with electrolyte.

4. The electrolytic polishing turntable according to claim 3, characterized in that: The turntable body is provided with a through hole at the gap between two adjacent supporting rods, and a liquid collecting tray is provided below the turntable body. The electrolyte passes through the turntable body through the through hole and is collected in the liquid collecting tray.

5. The electrolytic polishing turntable according to claim 3, characterized in that: The second electrode includes an electrolytic rod and a liquid guide, wherein the interior of the electrolytic rod is hollow and the liquid outlet is formed at the bottom; A liquid guiding cavity is formed in the liquid guiding part, the liquid inlet is formed at the top of the liquid guiding part and is connected to the liquid guiding cavity, the liquid guiding part is connected to the end of the electrolytic rod away from the liquid outlet, the diameter of the end of the liquid guiding cavity connected to the electrolytic rod is smaller than the diameter of the liquid inlet, and the electrolyte enters the liquid guiding cavity through the liquid inlet and fills the interior of the workpiece through the liquid outlet.

6. The electrolytic polishing turntable according to claim 5, characterized in that: The second electrode is assembled on the upper surface of the turntable by a lifting device. The lifting device includes a lifting frame and a lifting seat. The lifting seat is vertically fixed to the upper surface of the turntable. The lifting frame drives the electrolytic rod to slide in the height direction relative to the lifting seat so that the liquid outlet of the electrolytic rod extends into the opening of the workpiece.

7. The electrolytic polishing turntable according to claim 6, characterized in that: Also includes: The frame is equipped with a driving mechanism, and the turntable body is located directly below the driving mechanism as the upper and lower material positions. When any first electrode evenly distributed on the surface of the turntable body rotates to the position directly below the driving mechanism, the driving mechanism drives the lifting frame corresponding to the first electrode to drive the liquid outlet of the electrolytic rod to rise in the direction away from the first electrode.

8. The electrolytic polishing turntable according to claim 7, characterized in that: The driving mechanism includes a driving cylinder, a lifting plate and a driving member. The driving cylinder is mounted on the top surface of the frame. The driving end of the driving cylinder passes downward through the frame and is connected to the lifting plate. The driving member is mounted on the bottom end of the lifting plate. The lifting frame forms a force-bearing member on the side away from the second electrode. The driving end of the driving cylinder drives the lifting plate to rise. The driving member applies force to the bottom of the force-bearing member and drives the second electrode to rise.

9. The electrolytic polishing turntable according to claim 3, characterized in that: The turntable body is formed by splicing together no less than two mounting plates.

10. The electrolytic polishing turntable according to claim 8, characterized in that: Two or more workpieces are placed in the same positioning seat at the same time, and the bottoms of the two or more workpieces are in contact with the upper surface of the same first electrode. The lifting frame is equipped with second electrodes with the same number as the workpieces, and the liquid outlets of several second electrodes extend into the opening of each workpiece at the same time.

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