A rotary electrolytic polishing equipment

Abstract

The present invention provides a rotary electrolytic polishing device, comprising: a frame and a support tray arranged in the frame for circular rotation, the upper surface of the support tray is evenly equipped with a plurality of first electrodes around the axial direction, the first electrodes are in contact with the bottom of the workpiece and form a passage; the support tray is provided with a group of second electrodes corresponding to each first electrode, the second electrode is hollow inside and the top and bottom ends are provided with a liquid inlet and a liquid outlet, the liquid outlet is inserted into the opening of the workpiece to inject electrolyte into the workpiece, the support tray drives the first electrode and the workpiece to rotate to the lower material position so that the liquid outlet is moved out of the opening of the workpiece; a liquid collecting tray is arranged below the support tray in the frame, and the electrolyte overflowing from the opening of the workpiece passes through the through hole and falls into the liquid collecting tray. The present invention is used to solve the problem of large amount of electrolyte used and waste in the prior art when the workpiece is immersed in an electrolytic tank, and the electrolyte can be collected by omitting the electrolytic tank while ensuring the electrolytic polishing effect inside the workpiece.

Description

Technical Field

[0001] The invention relates to the technical field of metal surface treatment, and in particular to a rotary electrolytic polishing device. Background Art

[0002] Electrolytic polishing is a method of finishing the surface of a metal workpiece by passing electricity through an electrolyte for electrolysis. Currently in the field of electrolytic polishing, especially in the stainless steel thermos and cup industry, the container mouth is usually placed upward on a conductive platform of an electrolytic cell, and electrolyte is injected into the electrolytic cell so that the electrolyte enters and exits the container from the container mouth. In the above-mentioned prior art, it is necessary to inject electrolyte with a liquid level higher than the height of the container into the electrolytic cell in order to achieve the purpose of filling the container with electrolyte. Since the electrolyte is toxic and corrosive, after the electrolysis process is completed, a large amount of electrolyte in the electrolytic cell that has undergone electrolytic reaction needs to be treated for environmental protection, resulting in an increase in production costs. At the same time, the existing electrolytic polishing requires the use of a large amount of electrolyte, which leads to an increase in production costs.

[0003] The existing Chinese patent with announcement number CN106987894B discloses an inverted electrolytic polishing device and electrolytic polishing equipment thereof, which realizes the infiltration and contact degree between the inner wall surface of the workpiece and the electrolyte by inverting the workpiece and injecting the electrolyte upward through a hollow electrolytic rod. Compared with the electrolysis method of immersing the metal workpiece in the electrolytic tank, the above-mentioned prior art reduces the amount of electrolyte used. However, in the process of inverting the metal container into the electrolytic tank and injecting the electrolyte into the metal workpiece through the hollow electrolytic rod in the above-mentioned prior art, a certain amount of gas exists inside the workpiece and floats up, resulting in the electrolyte being unable to fill the inside of the metal workpiece, thereby causing electrolytic defects in the metal workpiece. In addition, the structure and operation process of the electrolytic polishing device in the above-mentioned prior art are relatively complicated, which brings greater production and maintenance costs.

[0004] In view of this, it is necessary to improve the electrolytic polishing device in the prior art to solve the above problems. The above introduction to the background technology is only for the convenience of a clear and complete description of the technical solution of the present application and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because these solutions are described in the background technology section of this application. Summary of the invention

[0005] The purpose of the present invention is to disclose a rotary electrolytic polishing device to solve the problem of large amount of electrolyte used and waste in the prior art when immersing the workpiece in an electrolytic tank. The rotary method is used to continuously electrolyze the inside of the workpiece, while ensuring the electrolytic polishing effect inside the workpiece, and at the same time, the electrolytic tank is omitted and the electrolyte can be collected.

[0006] To achieve the above-mentioned object, the present invention provides a rotary electrolytic polishing device, comprising: a frame and a bearing tray arranged in the frame and rotating in a circumferential direction, wherein a plurality of first electrodes are evenly mounted on the upper surface of the bearing tray around the axial direction, and the first electrodes are in contact with the bottom of the workpiece and form a passage;

[0007] The tray is provided with a group of second electrodes corresponding to each first electrode, the second electrode is hollow inside and the top and bottom ends are provided with a liquid inlet and a liquid outlet, the liquid outlet is inserted into the opening of the workpiece to inject electrolyte into the workpiece, and the tray drives the first electrode and the workpiece to rotate to the unloading position so that the liquid outlet is moved out of the opening of the workpiece;

[0008] The support tray is provided with a plurality of through holes in the radial direction, and a liquid collecting tray is arranged below the support tray in the frame, and the electrolyte overflowing from the opening of the workpiece passes through the through holes and falls into the liquid collecting tray.

[0009] As a further improvement of the present invention, a driving shaft for driving the support tray to rotate is axially penetrated through the support tray, a plurality of the first electrodes are evenly distributed on the upper surface of the support tray around the driving shaft, and a clearance opening for the driving shaft to pass through is provided at the center of the liquid collecting tray;

[0010] Each group of the second electrodes is connected to the upper surface of the tray through a group of lifting devices. The frame is located above the tray and a driving mechanism is arranged. The material unloading position is located directly below the driving mechanism. When the driving shaft drives the tray to rotate so that a group of the second electrodes rotates to directly below the driving mechanism, the driving mechanism drives the lifting device to drive the second electrodes to move in a direction away from the first electrode.

[0011] As a further improvement of the present invention, the support tray includes a mounting frame and a turntable, the mounting frame includes a turntable and a plurality of support rods, and the drive shaft is coaxially fixed with the turntable;

[0012] One end of the plurality of support rods in the length direction is respectively fixed to the edge of the rotating disk, and the other end of the support rods extends in a direction away from the driving shaft, the bottom surface of the rotating disk is in contact with the upper surfaces of the plurality of support rods, and a hollow portion is formed in the center of the rotating disk, and the annular inner wall surface of the hollow portion is in contact with the annular edge of the rotating disk;

[0013] The through hole formed on the supporting tray is opened at the gap between two adjacent supporting rods of the turntable, a plurality of the first electrodes are evenly distributed on the turntable away from the supporting rods, and the lifting device is installed on the upper surface of the turntable close to the turntable.

[0014] As a further improvement of the present invention, the upper surface of the liquid collecting tray forms an annular guide groove around the clearance port, the bottom of the guide groove forms a drainage surface around the clearance port, and the liquid collecting tray is equipped with a plurality of guide pipes connected to the drainage surface;

[0015] A liquid collecting box is arranged inside the frame below the drainage plate, and the electrolyte falls into the drainage groove and is guided into the liquid collecting box through the drainage surface and the drainage pipe.

[0016] As a further improvement of the present invention, the second electrode comprises an electrolytic rod and a liquid guide, the electrolytic rod is hollow inside and forms the liquid outlet at the bottom;

[0017] A liquid guiding cavity is formed in the liquid guiding member, the liquid inlet is formed at the top of the liquid guiding member and is connected to the liquid guiding cavity, the liquid guiding member is connected to an 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 is filled into the workpiece through the liquid outlet.

[0018] As a further improvement of the present invention, the lifting device includes a lifting frame and a lifting seat, the lifting seat is vertically fixed to the upper surface of the rotary disk, and the lifting frame drives the electrolytic rod to slide relative to the height direction of the lifting seat so that the liquid outlet of the electrolytic rod extends into the opening of the workpiece;

[0019] The lifting frame comprises a lifting plate and a frame body, wherein the lifting plate is slidably matched with the lifting seat, the frame body is vertically fixed to a side of the lifting plate away from the lifting seat, and the electrolytic rod is vertically passed through and fixed in the frame body.

[0020] As a further improvement of the present invention, the driving mechanism includes a driving cylinder, a lifting plate and a flipping member, wherein the driving cylinder is mounted on the top surface of the frame, the driving end of the driving cylinder is vertically downwardly connected to the lifting plate, and the bottom end of the lifting plate is rotatably connected to the flipping member;

[0021] A force-bearing member supported by the flip member is assembled on the side of the lifting plate away from the second electrode, and the driving end of the driving cylinder drives the flip member to move downward to a state of being out of contact with the force-bearing member, and the frame and the lifting plate move downward along the height direction of the lifting seat to the opening of the liquid outlet of the electrolytic rod extending into the workpiece.

[0022] As a further improvement of the present invention, the lifting plate is located below the force-bearing member and fixedly connected to a positioning member, and when the liquid outlet of the electrolytic rod extends into the opening of the workpiece, the positioning member abuts against the upper surface of the lifting seat.

[0023] As a further improvement of the present invention, the first electrode is evenly distributed on the upper surface of the turntable in a sheet shape, two or more workpieces are arranged on the upper surface of the first electrode along the length direction, and the turntable is provided with a positioning seat for positioning the two or more workpieces around the first electrode;

[0024] The frame fixes two or more electrolytic rods of the second electrode in parallel, and the liquid outlets of the two or more electrolytic rods simultaneously inject electrolyte into the openings of the workpieces whose number is the same as that of the electrolytic rods.

[0025] As a further improvement of the present invention, it also includes: an electrolytic power source and a current collecting device, wherein the current collecting device is coaxially assembled on the top end of the driving shaft, and the current collecting device supplies power to the electrolytic power source through a flexible conductive device.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] First, the bottom of the workpiece is brought into contact with the first electrode on the surface of the tray to form a passage, and then the second electrode is extended into the workpiece from the opening of the workpiece, and an electrolyte larger than the volume of the workpiece is injected from the liquid inlet of the second electrode, and the electrolyte is injected into the workpiece after passing through the liquid outlet. After the electrolyte is injected into the workpiece to reach its volume, the bubbles formed by the air mixed in the electrolyte and entering the workpiece together are floated to the opening of the workpiece by buoyancy, and then a certain amount of electrolyte is continued to be introduced into the workpiece. The electrolyte overflowing from the opening of the workpiece can bring the bubbles floating to the liquid surface out of the workpiece and overflow onto the tray, which can effectively avoid the problem of the electrolysis effect being affected by the presence of bubbles in the workpiece. Furthermore, the second electrode has a conductive effect and is used as a guide device for injecting electrolyte into the workpiece, so as to achieve the effect of draining the electrolyte to fill the interior of the workpiece, thereby achieving the purpose of achieving a better electrolysis effect on the interior of the workpiece through a simpler structure without the need for an electrolytic cell. At the same time, by setting a liquid collecting tray under the supporting tray, when the electrolyte overflowing from the opening of the workpiece falls onto the supporting tray, the electrolyte flows into the liquid collecting tray through the through hole, so as to achieve the effect of omitting the electrolytic cell while avoiding the overflowing electrolyte from polluting the production space.

[0028] Secondly, a driving shaft is arranged in the center of the tray, and the driving shaft drives the tray to move in a circular motion. A number of first electrodes are evenly distributed on the tray, and the workpiece is placed at the first electrode directly below the driving mechanism. Then the lifting frame is moved down along the lifting seat to the opening where the electrolytic rod extends into the workpiece to fill the workpiece with electrolyte. Then, each time the tray rotates in the circular rotation process, the first electrodes evenly distributed on its surface rotate to the directly below the driving mechanism once to facilitate the placement and removal of the workpiece and the injection of electrolyte, until the workpiece rotates to the directly below the driving mechanism again after the tray rotates one circle. At this time, the workpiece has been electrolyzed for a sufficient time and can be removed from the tray. Then a new workpiece to be electrolyzed is placed at the station and the above actions are repeated. After it rotates one circle, the electrolysis is completed.

[0029] Finally, the tray is composed of a mounting frame and a turntable. Furthermore, the mounting frame is composed of a turntable and a support rod. The turntable serves to connect the drive shaft and install the lifting device. The support rods and the turntable form an umbrella-shaped framework to assemble the turntable. The surface of the turntable is used to assemble the first electrode. By setting a through hole at the gap between the two support rods of the turntable, the electrolyte can smoothly pass through the turntable and fall into the liquid collecting tray, reducing the contact time between the electrolyte and the entire tray, thereby effectively avoiding the corrosion of the tray by the electrolyte. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the specific structure of the rotary electrolytic polishing equipment used in the present invention;

[0031] Figure 2 It is a top view used to reflect the specific structure of the support tray in the present invention;

[0032] Figure 3 It is a top view used to reflect the specific structure of the mounting frame in the present invention;

[0033] Figure 4 It is a top view used to reflect the matching relationship between the turntable and the support rod in the present invention;

[0034] Figure 5 It is a cross-sectional view used to reflect the specific structure of the liquid collecting tray in the present invention;

[0035] Figure 6 It is a specific structural diagram of the guide groove used to embody the guide groove in the present invention;

[0036] Figure 7 This is a top view of the overall structure of the liquid collecting tray of the present invention;

[0037] Figure 8 for Figure 1 Enlarged view of part A in the middle;

[0038] Fig. 9It is a structural schematic diagram for reflecting the state of the second electrode entering the opening of the workpiece in the present invention;

[0039] Fig.10 for Fig. 9 Enlarged view of middle part B;

[0040] Fig.11 It is a structural schematic diagram of the lifting device used to reflect the second electrode extending into the opening of the workpiece in the present invention;

[0041] Fig.12 It is a partial enlarged view used to embody the current collecting device and the electrolytic power source in the present invention;

[0042] Fig.13 for Fig.11 Enlarged view of middle E part;

[0043] Fig.14 It is a side view used to embody the specific structure of the driving mechanism in the present invention;

[0044] Fig.15 It is a top view used to reflect the specific structure of the driving mechanism in the present invention. DETAILED DESCRIPTION

[0045] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but 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 the field based on these embodiments are all within the scope of protection of the present invention.

[0046] Ginseng Figures 1 to 15As shown, a specific embodiment of a rotary electrolytic polishing device disclosed by the present invention is shown, wherein the bottom 31 of the workpiece 3 is placed at the first electrode 11 of the surface 1 of the tray, and then the second electrode 2 is extended into the workpiece 3 from the opening 32 of the workpiece 3, and electrolyte is injected from the liquid inlet 21 of the second electrode 2, and the electrolyte is injected into the workpiece 3 after passing through the liquid outlet 22. After the electrolyte is injected into the workpiece 3 placed forward to reach its volume, bubbles formed by the air mixed in the electrolyte and entering the workpiece 3 together are floated to the opening 32 of the workpiece 3 by buoyancy, and then a certain amount of electrolyte is continuously introduced into the workpiece 3. The electrolyte that exceeds the volume of the workpiece 3 and overflows from the opening 32 can bring the bubbles floating to the liquid surface out of the workpiece 3 and overflow onto the tray 1, which can effectively avoid the problem that the electrolysis effect is affected by the presence of bubbles in the workpiece 3. Furthermore, in the present application, since the electrolyte is poured into the workpiece 3 from top to bottom, the momentum and impulse carried by the electrolyte itself in the process of pouring the electrolyte into the workpiece 3 can effectively flush, squeeze and break the bubbles that may be formed on the inner wall surface of the workpiece 3 due to the liquid tension of the electrolyte itself, so that the present application can reduce the amount of electrolyte while further avoiding the undesirable situation of bubbles forming on the inner wall surface of the workpiece 3 after the workpiece 3 is filled with electrolyte, further improving the electrolytic polishing effect of the slotless electrolytic polishing equipment shown in the present application, thereby effectively avoiding the appearance of spots or dirt on the inner wall surface of the workpiece 3 after electrolytic polishing due to the adhesion of bubbles on the inner wall surface of the workpiece 3.

[0047] Furthermore, the second electrode 2 has a conductive effect and is used as a guide device for injecting electrolyte into the workpiece 3, so that the inside of the workpiece 3 is filled with an appropriate amount of electrolyte, thereby achieving the purpose of achieving a better electrolysis effect on the inside of the workpiece through a simpler structure without the need for an electrolytic cell. At the same time, by providing a liquid collecting tray 1 below the support tray 1, when the electrolyte overflowing from the opening 32 of the workpiece 3 falls onto the support tray 1, the electrolyte falls into the liquid collecting tray 13 through the through hole 151, so as to achieve the effect of omitting the electrolytic cell while avoiding the overflow of the electrolyte from polluting the production space. Compared with the prior art, this embodiment effectively solves the problem of the waste of a large amount of electrolyte used by immersing the workpiece in the electrolytic cell in the prior art, facilitates the discharge of bubbles generated in the electrolyte to ensure the electrolytic polishing effect inside the workpiece, and achieves the effect of omitting the electrolytic cell and being able to collect the electrolyte.

[0048] Ginseng Figures 1 to 15As shown, in this embodiment, the rotary electrolytic polishing equipment (hereinafter referred to as the electrolytic polishing equipment) includes a frame 5 and a support tray 1 arranged in the frame 5 for circular rotation. The upper surface of the support tray 1 is evenly equipped with a plurality of first electrodes 11 around the axial direction, and the bottom 31 of the workpiece 3 contacts the first electrode 11 to form a passage; the support tray 1 is provided with a group of second electrodes 2 corresponding to each first electrode 11, the second electrode 2 is hollow inside and the top and bottom ends are provided with a liquid inlet 21 and a liquid outlet 22, the liquid outlet 22 is inserted into the opening 32 of the workpiece 3 to inject electrolyte into the workpiece 3, the support tray 1 drives the first electrode 11 and the workpiece 3 to rotate to the unloading position (see the following description) so that the liquid outlet 22 is moved out of the opening 32 of the workpiece 3; the support tray 1 is provided with a plurality of through holes 151 in the radial direction, and a liquid collecting tray 13 is arranged below the support tray 1 in the frame 5, and the electrolyte overflowing from the opening 32 of the workpiece 3 passes through the support tray 2 through the through hole 151 and falls into the liquid collecting tray 13. 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.

[0049] When the inside of the workpiece 3 needs to be electropolished, first, the opening 32 of the workpiece 3 is facing upward, that is, the workpiece is placed on the support tray 1 in a forward position, and the bottom 31 of the workpiece 3 is in contact with the first electrode 11 formed on the surface of the support tray 1. The workpiece 3 and the first electrode 11 are both made of conductive metal materials, so the bottom 31 of the workpiece 3 is in contact with the first electrode 11 to form a conductive path. Then, the liquid outlet 22 of the second electrode 2 extends into the opening 32 of the workpiece 3, and the electrolyte is injected into the liquid inlet 21 of the second electrode 2. Since the second electrode 2 is hollow inside, the electrolyte is injected into the second electrode 2 from the liquid inlet 21 and fills the inside of the workpiece from the liquid outlet 22 extending into the opening 32 of the workpiece 3. It should be noted that, Figure 1As shown, in this embodiment, the electrolytic polishing equipment also has an electrolytic power supply 53 for supplying power to the second electrode 2 and the first electrode 11. When the electrolyte fills the workpiece 3, the injection stops, and the electrolyte injected into the workpiece 3 undergoes an electrolytic reaction in the workpiece 3, thereby achieving a polishing effect in which the raised portion of the inner wall of the workpiece 3 is dissolved. Compared with the prior art, this embodiment omits the electrolytic cell to effectively reduce the amount of electrolyte used, and adopts a forward placement method for the workpiece 3. When the electrolyte is injected into the workpiece 3, the generated bubbles float to the electrolyte surface close to the opening 32 of the workpiece 3 due to buoyancy, and then a certain amount of electrolyte continues to be introduced into the workpiece 3. The electrolyte exceeding the volume of the workpiece 3 and the bubbles rising to the liquid surface overflow from the opening 32 onto the support tray 1, thereby achieving the effect of discharging the bubbles inside the workpiece 3. Compared with the prior art of injecting electrolyte into the inverted workpiece 3, The electrolyte in the inverted workpiece floats to the bottom and cannot be discharged smoothly, so a special structure for discharging bubbles needs to be designed. In the step of injecting electrolyte into the workpiece 3 in this embodiment, it is only necessary to place the opening 32 of the workpiece 3 in the forward direction, control the second electrode 2 to extend into the workpiece 3, and inject electrolyte slightly larger than the volume of the workpiece 3. It has the advantages of simple structure and actuation process while also preventing bubbles from affecting the electrolysis process. It does not require a more complex structure to guide the generated bubbles, and is more suitable for the electrolysis process of workpieces 3 represented by stainless steel thermos cups and thermos bottles. In addition, in this embodiment, a liquid collecting tray 13 is provided below the tray 1. When there is electrolyte that partially overflows from the opening 32 of the workpiece 3 to the tray 1, the electrolyte can be collected into the liquid collecting tray 13 by the through hole 151 opened in the tray 1, so as to achieve the purpose of collecting and recycling the electrolyte overflowing from the workpiece 3.

[0050] Ginseng Figures 1 to 7 As shown, the tray 1 is axially penetrated by a driving shaft 54 ​​for driving the tray 1 to rotate, a plurality of first electrodes 11 are evenly distributed on the upper surface of the tray 1 around the driving shaft 54, and a clearance opening 31 for the driving shaft 54 ​​to pass through is provided at the center of the liquid collecting tray 13; each group of second electrodes 2 is connected to the upper surface of the tray 1 through a group of lifting devices 4, and a frame 5 is provided with a driving mechanism 6 above the tray 1, and the driving shaft 54 ​​drives the tray 1 to rotate so that a group of second electrodes 2 rotates to a position C directly below the driving mechanism 6 (refer to Figure 2 and Fig. 9 As shown in FIG. 1 , that is, the material lowering position), the driving mechanism 6 drives the lifting device 4 to drive the second electrode 2 to move in a direction away from the first electrode 11.

[0051] In the present embodiment, a driving shaft 54 ​​is provided in the center of the support tray 1, and the driving shaft 54 ​​drives the support tray 1 to move in a circular motion, and a plurality of first electrodes 11 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 11 on the surface of the support tray 1 rotates once to the position directly below the driving mechanism 6. It should be noted that, in the present embodiment, a total of 36 first electrodes 11 are provided around the driving shaft 54 ​​on the upper surface of the support tray 1. Therefore, in the present embodiment, each time the driving shaft 54 ​​drives the driving shaft 54 ​​to rotate 10°, a first electrode 11 on the upper surface of the support tray 1 is located at position C directly below the driving mechanism 6. At this time, the first electrode 11 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 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 the specific state, refer to FIG. 6 ). Figure 1 As shown). The bottom 31 of the workpiece 3 is placed in contact with the first electrode 11 at position C. At this time, the driving mechanism 6 drives the lifting device 4 to drive the second electrode 2 to move down to the liquid outlet 22 and extend into the opening 32 of the workpiece 3 to fill the inside of the workpiece 3 with electrolyte. Then, each time the tray 1 rotates with the driving shaft 54, the first electrode 2 evenly distributed on its surface rotates to the bottom of the driving mechanism 6 once to facilitate the placement of the workpiece 3 and the injection of the electrolyte. The specific action process is consistent with the above and will not be repeated here. Until the workpiece 3 rotates with the tray 1 for one circle and then rotates again to the position C directly below the driving mechanism 6, the inside of the workpiece has undergone sufficient electrolysis time and achieved a good electrolytic polishing effect. It can be removed at position C, and then a new workpiece to be electrolyzed is placed at position C and the above action is repeated. After it rotates for one circle, the electrolytic polishing of the inside of the workpiece 3 is completed.

[0052] Ginseng Figures 1 to 11As shown, the tray 1 includes a mounting frame 14 and a turntable 15, the mounting frame 14 includes a turntable 141 and a plurality of supporting rods 142, the driving shaft 54 ​​is coaxially fixed with the turntable 141; one end of the plurality of supporting rods 142 in the length direction is respectively fixed at the edge of the turntable 141, and the other end of the supporting rods extends in a direction away from the driving shaft 54, the bottom surface of the turntable 15 is in contact with the upper surfaces of the plurality of supporting rods 142, and a hollow portion 152 is formed in the center of the turntable 15, and the annular inner wall surface of the hollow portion 152 is in contact with the annular edge of the turntable 141; the through hole 151 of the tray 1 is opened at the gap between two adjacent supporting rods 142 of the turntable 15, a plurality of first electrodes 11 are evenly distributed on the side of the turntable 15 away from the supporting rods 142, and the lifting device 4 is installed on the upper surface of the turntable 141 near the turntable 15. 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 14 drives the second electrode 2 to slide in the height direction relative to the lifting seat 42 so that the liquid outlet 22 of the second electrode 2 extends into the opening 32 of the workpiece 3; the lifting frame 41 includes a lifting plate 413 and a frame body 414. The lifting plate 413 and the lifting seat 42 are slidably matched. The frame body 414 is vertically fixed to the side of the lifting plate 413 away from the lifting seat 42. The second electrode 2 is vertically penetrated and fixed in the frame body 414.

[0053] A plurality of first electrodes 11 are distributed on the upper surface of the rotating disk 15, and the lifting seat 42 of the lifting device 4 is mounted on the upper surface of the rotating disk 141 and is arranged opposite to the first electrodes 11. Therefore, when the driving shaft 54 ​​is started, the lifting seat 42 and the first electrode 11 arranged opposite thereto rotate synchronously, thereby enabling the lifting frame 41 slidably mounted on the lifting seat 42 and the second electrode 2 installed on the lifting frame 41 to rotate together with the supporting tray 1. When the lifting frame 41 drives the liquid outlet 22 of the second electrode 2 as a whole to extend into the opening 32 of the workpiece 3 and fills the workpiece 3 with electrolyte, the driving shaft 54 ​​drives the rotating disk 141 to rotate, that is, drives the workpiece 3 and the second electrode 2 extending therein to rotate as a whole. During the rotation process, the first electrode 11 and the second electrode 2 are energized to keep the electrolytic reaction going. The electrolyte spilled onto the surface of the turntable 15 passes through the through hole 151 opened on the turntable 15, and because the through hole 151 is set in the gap between two adjacent support rods 142, the electrolyte can directly fall into the liquid collection tray 13 after passing through the through hole 151 without being interfered by the support rod 142, which is beneficial to the recovery of the electrolyte while avoiding corrosion of the support rod 142 by the electrolyte.

[0054] Ginseng Figures 1 to 11As shown, the upper surface of the liquid collecting tray 13 forms an annular guide groove 133 around the clearance opening 131, and the bottom of the guide groove 133 forms a tapered drainage surface 1331 around the clearance opening 131. The bottom wall of the liquid collecting tray 13 is equipped with multiple guide tubes 132, and the top of the guide tube 132 is connected to the lowest position of the drainage surface 1331; a liquid collecting box 52 is arranged below the drainage tray 13 inside the frame 5, and the electrolyte falls into the guide groove 133 and is guided into the liquid collecting box 52 through the drainage surface 1331 and the guide tube 132. It should be noted that the electrolytic polishing equipment in this embodiment adopts a design without an electrolytic cell, and the purpose of injecting an electrolyte of just the right volume into the workpiece 3 through the second electrode 2 can be achieved through a metering pump or other devices. However, in order to achieve the effect of discharging bubbles inside the workpiece 3, a certain amount of electrolyte still needs to be injected after the electrolyte fills the workpiece 3. Therefore, the electrolyte exceeding the capacity of the workpiece 3 will overflow onto the support tray 1 with bubbles. In this embodiment, the structure of the support tray 1 is designed to guide the electrolyte overflowing to the surface of the support tray 1 into the liquid collection box 52 to keep the surface of the support tray 1 clean. The aforementioned metering pump is only a specific embodiment, and can also be implemented by a liquid adding pipeline (not shown) with a quantitative delivery of the electrolyte. In view of the fact that the control implementation means of the volume of the electrolyte injected into the workpiece 3 is not the invention point of this application, it is briefly described in the specification.

[0055] Furthermore, Fig.11 and Fig.13 The electrolytic rod 23 and the liquid guide 24 are shown in the form of being integrated and fixed to each other. However, it should be noted that the liquid guide 24 and the electrolytic rod 23 are connected to each other in a detachable manner, that is, the bottom end of the funnel-shaped liquid guide 24 is plugged into the top opening of the electrolytic plate 23, so as to achieve the purpose of receiving and draining the electrolyte flowing out of the liquid adding device such as a quantitative pump by the liquid inlet 21 with a larger diameter formed at the top of the liquid guide 24. Alternatively, the split liquid guide 24 can be docked above the electrolytic rod 23 using a manipulator (not shown) when it is necessary to inject electrolyte into the workpiece 3, and then the liquid adding device is allowed to pass the electrolyte into the liquid inlet 21 formed at the top of the liquid guide 24, and the effect of receiving and draining the electrolyte by the funnel-shaped liquid guide 24 can still be achieved. When the liquid adding device stops injecting liquid, the manipulator drives the liquid guide 24 to disengage from the docking state with the electrolytic rod 23, and the drive shaft 54 ​​drives the next first electrode 11 to rotate to position C to repeat the above-mentioned action.

[0056] Specifically, in the present embodiment, the supporting tray 1 is composed of a mounting frame 14 and a turntable 15. Furthermore, the mounting frame 14 includes a turntable 141 and a plurality of support rods 142. The drive shaft 54 ​​passes through the center of the turntable 141 and is coaxially fixed. The plurality of support rods 142 are assembled to the edge of the turntable 141 to form a skeleton for supporting the turntable 15. Furthermore, the bottom end of the driving shaft 54 ​​is connected to the driving motor 541, and a clearance opening 131 is centrally opened in the inner liquid collecting tray 13 of the frame 5 for the driving shaft 54 ​​to pass through, and the liquid collecting tray 13 forms an annular guide groove 133 opened around the clearance opening 131 on the upper surface, and the groove bottom of the guide groove 133 is set to be a tapered drainage surface 1331 formed around the clearance opening 131. After the electrolyte passes through the through hole 151 of the turntable 15 and falls into the guide groove 133, it flows to the lowest point of the drainage surface 1331 under the guidance of the drainage surface 1331, and then is discharged into the liquid collecting box 52 through a plurality of liquid outlet pipes 132 connected here. In the present embodiment, an annular guide groove 133 is provided on the upper surface of the liquid collecting tray 13 to temporarily store the electrolyte that has fallen into the liquid collecting tray 13. The guide groove 133 is designed so that both sides close to and away from the clearance port 131 are groove walls of a certain height to prevent the electrolyte that has fallen into the liquid collecting tray 13 from flowing uncontrollably to other areas of the rack 5. Instead, the electrolyte is guided by the guide surface 1331 and is guided by the guide pipe 132 to the liquid collecting box 52 to collect the electrolyte. It should be noted that in the present embodiment, the height of the side of the guide surface 1331 that is away from the clearance port 131 is lower. An electrolyte cooling pipe 521 (see FIG. 5 ) is provided in the liquid collecting box 52. Figure 3 As shown, the electrolyte in the liquid collecting tank 52 is cooled by introducing low-temperature liquid into the electrolyte cooling pipe 521. Furthermore, an industrial chiller 55 is provided below the guide plate 131 in the frame 5, and a liquid outlet pipe 132 of the guide plate 131 is connected to a liquid inlet (not shown) of the industrial chiller 55 through a hose or other means.

[0057] Ginseng Figures 9 to 12As shown, the second electrode 2 includes an electrolytic rod 23 and a liquid guiding member 24. The interior of the electrolytic rod 23 is hollow and a liquid outlet 22 is formed at the bottom. A liquid guiding cavity 241 is formed in the liquid guiding member 24. The liquid inlet 21 is formed at the top of the liquid guiding member 24 and is connected to the liquid guiding cavity 241. The liquid guiding member 24 is connected to one end of the electrolytic rod 23 away from the liquid outlet 22. The diameter of the end of the liquid guiding cavity 241 connected to the electrolytic rod 23 is smaller than the diameter of the liquid inlet 21. The electrolyte enters the liquid guiding cavity 241 through the liquid inlet 21 and then fills the interior of the workpiece 3 from the liquid outlet 22. It should be noted that the lifting frame 41 includes a lifting plate 413 and a frame body 414, and the lifting seat 42 includes a mounting plate 421 and a support plate 422, wherein the mounting plate 421 is vertically mounted on the upper surface of the support tray 1, and the support plate 422 is a right-angled triangular plate body, and the two right-angled sides of the support plate 422 are respectively in contact with the side wall 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, and the lifting plate 413 is slidably matched with the guide rail 423 through a guide block (not marked), and the frame body 414 is vertically mounted on the side of the lifting plate 413 away from the mounting plate 421, and the first electrode 2 is installed through the assembly part 415.

[0058] Ginseng Fig.11 and Fig.12 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 fitted 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 fitted with the inner wall surface of the installation opening (not marked). The lower surface of the protrusion (not marked) of the insulating sleeve 4152 is fitted 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 mounted at the bottom end thereof, thereby achieving the purpose of stably mounting the electrolysis rod 23 on the frame 414. Furthermore, the electrode fixing member 4151 also has a conductive function, and the electrolysis power source 53 is electrically connected to the electrode fixing member 4151 to achieve the purpose of supplying power to the second electrode 2 as a whole.

[0059] Combination Figure 1 , Figure 3 and Fig.13As shown, the electrolytic polishing equipment also includes a current collecting device 56, which is coaxially mounted on the top of the driving shaft 54, and the current collecting device 56 supplies power to the electrolytic power source 53 through a flexible conductive device 531. The electrolytic power source 53 usually needs to be powered by wiring. In this embodiment, the current collecting device 56 mounted on the top of the driving shaft 54 ​​is externally powered, and the current collecting device 56 is powered by the flexible conductive device 531 during the process of the driving shaft 54, thereby avoiding the situation in which the electrolytic power source 53 is entangled during the rotation of the driving shaft 54 ​​due to the external power supply obtained by the wiring. Specifically, in this embodiment, the flexible conductive device 531 is selected as a carbon brush. Further, the flexible conductive device 531 selected as a carbon brush can be installed on the driving shaft 54 ​​or the electrolytic power source 53. Fig.13 The structure diagram shown is when the flexible conductive device 531 is fixedly connected to the electrolytic power source 53 in an annular shape, and a contact 561 connected to the collector 56 is formed on the drive shaft 54, so that the flexible conductive device 531 continuously touches the contact 561 formed on the drive shaft 54 ​​during the rotation of the drive shaft 54 ​​to achieve the purpose of supplying power to the electrolytic power source 53. If the flexible conductive device 531 is fixedly connected to the drive shaft 54 ​​in an annular shape, the flexible conductive device 531 is connected to the collector 56, and the flexible conductive device 531 continuously touches the contact 561 formed on the electrolytic power source 53 during the rotation of the drive shaft 54, so as to achieve the purpose of supplying power to the electrolytic power source 53 by the collector 56 (this assembly method is not shown). Through the design of the flexible conductive device 531 and the collector 56, the problem of entanglement between the line and the rotating drive shaft 54 ​​caused by the electrolytic power source 53 being supplied by wiring can be effectively avoided. It should be noted that the flexible conductive device 531 can be set to any device that can achieve light contact, not limited to carbon brushes.

[0060] Ginseng Figures 9 to 14 As shown, the driving mechanism 6 includes a driving cylinder 61, a lifting plate 62 and a flipping member 63. The driving cylinder 61 is mounted on the top surface of the frame 5. The driving end of the driving cylinder 61 is vertically connected to the lifting plate 62 downward, and the bottom end of the lifting plate 62 is rotatably connected to the flipping member 63. The lifting plate 413 is equipped with a force-bearing member 411 supported by the flipping member 63 on the side away from the second electrode 2. The driving end of the driving cylinder 61 drives the flipping member 63 to move downward to a state of being out of contact with the force-bearing member 411. The frame 414 and the lifting plate 413 move downward along the height direction of the lifting seat 42 to the opening 32 where the liquid outlet 22 of the electrolytic rod 23 extends into the workpiece 3. The lifting plate 413 is located below the force-bearing member 411 and fixedly connected to the positioning member 412. When the liquid outlet 22 of the electrolytic rod 23 extends into the opening 32 of the workpiece 3, the positioning member 412 abuts against the upper surface of the lifting seat 42.

[0061] Specifically, Figure 1 and Fig. 9 ,as well as Fig.13 and Fig.14 As shown, the driving mechanism 6 also includes a support 64, which is fixedly connected to the top plate 51 of the frame 5 through a bottom plate 641. The support 64 is arranged perpendicular to the bottom plate 641 and is fixedly connected to a slider 6411. The support plate 642 is arranged as a right-angled triangle plate, and the two right-angled sides of the length of the support plate 642 are respectively arranged to fit the support 64 and the bottom plate 641. The driving cylinder 61 is assembled on the bottom plate 641, and the driving end of the driving cylinder 61 passes through the bottom plate 641 and the top plate 51 of the frame 5 and is connected to the lifting plate 62 through a connecting piece 611. The lifting plate 62 is fixedly connected to a slide rail 621 that is mutually engaged with the slider 6411 along its height direction, and the bottom end of the lifting plate 62 is rotatably connected to the lifting plate 62 through a connecting shaft 631. Further, refer to Figure 8 , Fig.10 as well as Fig.13 As shown, the flip part 63 is configured as a plate-like member with a certain length and thickness, and a wedge-shaped surface 632 is formed between the bottom surface of the flip part 63 and the connection portion thereof away from the connecting shaft 631. The workpiece 3 is placed into the positioning seat 16 at the position C, and the driving end of the driving cylinder 61 is extended; 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 shown in FIG. Fig.11 and Fig.12 As shown in the figure, at this time, the driving end of the driving cylinder 61 is in a fully extended state, and the lifting plate 62 connected to the driving end of the driving cylinder 61 through the connecting piece 611 drives the flip member 63 to move to the lowest point. At this time, the flip member 63 and the force-bearing member 411 are in a mutually separated state. At this time, the lifting frame 41 is subjected to the 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 against the upper edge of the guide rail 423. Since the flip member 63 is completely separated from the force-bearing member 411, it can be known that at this time, there is no contact between the driving mechanism 6 and the lifting device 4, and the electrolyte is injected into the liquid inlet 21 of the first electrode 2 until the inside of the workpiece 3 is filled. At this time, the driving shaft 54 ​​is rotated again to the position C where the positioning seat 16 of the next station is located directly below the driving mechanism 6.

[0062] When the positioning seat 16 of the next station rotates again to the position C directly below the driving cylinder 6, since the force-bearing member 411 of the lifting frame 41 of the station is not subjected to any upward force during the rotation of the driving shaft 54, the positioning member 412 connected to the lifting plate 413 of the lifting frame 41 of the station is in a state of abutting against the top of the guide rail 423. At this time, the driving end of the driving cylinder 61 is retracted, and the lifting plate 62 drives the flip member 63 to move upward so that the flip member 63 applies an upward pulling force to the force-bearing member 411, so as to drive the lifting frame 411 as a whole and the first electrode 2 as a whole to rise until Figure 1 and Figure 2The position shown, then the workpiece 3 is placed in the positioning seat 16 at position C again and the driving end of the driving cylinder 61 is extended again so that the liquid outlet 22 of the first electrode 2 extends into the opening 32 of the workpiece 3. The action process is consistent with the above and will not be repeated here. Then the electrolyte is injected into the liquid inlet 21 of the first electrode 2 again until the inside of the workpiece 3 is filled, and the driving shaft 54 ​​is rotated again to the position C where the positioning seat 16 of the next station is located directly below the driving mechanism 6. Specifically, in this embodiment, the first electrode 11 is evenly distributed on the upper surface of the turntable 15 in a sheet shape, and two workpieces 3 are arranged on the upper surface of the first electrode 15 along the length direction. The turntable 15 is provided with a positioning seat 16 for positioning the two workpieces 3 around the first electrode 11. The frame 414 fixes the electrolytic rods 23 of the two second electrodes 2 in parallel, and the liquid outlets 22 of the two electrolytic rods 23 inject electrolyte into the openings 32 of the two workpieces 3 at the same time. It should be noted that, in this embodiment, the positioning seat 16 is configured as a flower basket made of an elastic material (such as plastic, rubber, etc.), and the openings 32 of the two workpieces 3 are inserted into the two positioning seats 16 respectively with the openings 32 facing upward. At this time, the bottoms 31 of the two workpieces 3 are both in contact with the first electrode 11. Through this design, each workstation (i.e., the first electrode 11) can be used to electropolish the two workpieces 3 at the same time, thereby effectively improving production efficiency.

[0063] In the above manner, the driving shaft 54 ​​drives the tray 1 to move in a circular motion, and a plurality of sheet-shaped first electrodes 11 are evenly distributed on the tray 1. Two workpieces 3 are simultaneously placed in the positioning seat 16 at the position C directly below the driving mechanism 6, and the bottom 31 is in contact with the first electrode 11. Then, the lifting frame 41 is controlled to move down along the lifting seat 42 until the electrolytic rod 23 extends into the opening 32 of the workpiece 3 to fill the inside of the workpiece 3 with electrolyte. Then, each time the tray 1 rotates in the process of circular rotation, the evenly distributed first electrodes 11 on its surface rotate to the directly below the driving mechanism 6 once, so as to facilitate the placement and placement of the workpiece 3 and the injection of electrolyte. Until the workpiece 3 rotates with the support tray 1 for one circle and then rotates again to the position C directly below the driving mechanism 6, the interior of the workpiece 3 has undergone sufficient electrolysis time and achieved a good electrolytic polishing effect, so that the lifting frame 41 as a whole drives the first electrode 1 as a whole to move out of the opening 32 of the workpiece 3, and the workpiece 3 that has completed electrolytic polishing can be removed from the positioning seat 16, and other workpieces 3 to be electrolytically polished can be replaced and placed in the positioning seat 16 and the above actions can be repeated to electrolytically polish the interior.

[0064] 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.

[0065] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0066] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A rotary electrolytic polishing device, characterized in that: include: A frame and a tray arranged in the frame and rotatable in a circumferential direction, wherein a plurality of first electrodes are evenly mounted on the upper surface of the tray around the axial direction, and the first electrodes are in contact with the bottom of the workpiece to form a passage; The tray is provided with a group of second electrodes corresponding to each first electrode, the second electrode is hollow inside and the top and bottom ends are provided with a liquid inlet and a liquid outlet, the liquid outlet is inserted into the opening of the workpiece to inject electrolyte into the workpiece, and the tray drives the first electrode and the workpiece to rotate to the unloading position so that the liquid outlet is moved out of the opening of the workpiece; The support tray is provided with a plurality of through holes in the radial direction, and a liquid collecting tray is arranged below the support tray in the frame, and the electrolyte overflowing from the opening of the workpiece passes through the through holes and falls into the liquid collecting tray.

2. The rotary electrolytic polishing equipment according to claim 1, characterized in that: A driving shaft for driving the support tray to rotate is axially provided through the support tray, a plurality of first electrodes are uniformly distributed on the upper surface of the support tray around the driving shaft, and a clearance opening for the driving shaft to pass through is provided at the center of the liquid collecting tray; Each group of the second electrodes is connected to the upper surface of the tray through a group of lifting devices. The frame is located above the tray and a driving mechanism is arranged. The material unloading position is located directly below the driving mechanism. When the driving shaft drives the tray to rotate so that a group of the second electrodes rotates to directly below the driving mechanism, the driving mechanism drives the lifting device to drive the second electrodes to move in a direction away from the first electrode.

3. The rotary electrolytic polishing equipment according to claim 2, characterized in that: The tray includes a mounting frame and a turntable, the mounting frame includes a turntable and a plurality of support rods, and the drive shaft is coaxially fixed with the turntable; One end of the plurality of support rods in the length direction is respectively fixed to the edge of the rotating disk, and the other end of the support rods extends in a direction away from the driving shaft, the bottom surface of the rotating disk is in contact with the upper surfaces of the plurality of support rods, and a hollow portion is formed in the center of the rotating disk, and the annular inner wall surface of the hollow portion is in contact with the annular edge of the rotating disk; The through hole formed on the supporting tray is opened at the gap between two adjacent supporting rods of the turntable, a plurality of the first electrodes are evenly distributed on the turntable away from the supporting rods, and the lifting device is installed on the upper surface of the turntable close to the turntable.

4. The rotary electrolytic polishing equipment according to claim 3, characterized in that: The upper surface of the liquid collecting tray forms an annular guide groove around the clearance port, the bottom of the guide groove forms a drainage surface around the clearance port, and the liquid collecting tray is equipped with a plurality of guide pipes connected to the drainage surface; A liquid collecting box is arranged inside the frame below the drainage plate, and the electrolyte falls into the drainage groove and is guided into the liquid collecting box through the drainage surface and the drainage pipe.

5. The rotary electrolytic polishing equipment according to claim 3, characterized in that: The second electrode comprises 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 member, the liquid inlet is formed at the top of the liquid guiding member and is connected to the liquid guiding cavity, the liquid guiding member is connected to an 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 is filled into the workpiece through the liquid outlet.

6. The rotary electrolytic polishing equipment according to claim 5, characterized in that: The lifting device comprises a lifting frame and a lifting seat, wherein the lifting seat is vertically fixed to the upper surface of the rotary disk, and the lifting frame drives the electrolytic rod to slide relative to the lifting seat in the height direction so that the liquid outlet of the electrolytic rod extends into the opening of the workpiece; The lifting frame comprises a lifting plate and a frame body, wherein the lifting plate is slidably matched with the lifting seat, the frame body is vertically fixed to a side of the lifting plate away from the lifting seat, and the electrolytic rod is vertically passed through and fixed in the frame body.

7. The rotary electrolytic polishing equipment according to claim 6, characterized in that: The driving mechanism includes a driving cylinder, a lifting plate and a flipping member, wherein the driving cylinder is mounted on the top surface of the frame, the driving end of the driving cylinder is vertically connected to the lifting plate downward, and the bottom end of the lifting plate is rotatably connected to the flipping member; A force-bearing member supported by the flip member is assembled on the side of the lifting plate away from the second electrode, and the driving end of the driving cylinder drives the flip member to move downward to a state of being out of contact with the force-bearing member, and the frame and the lifting plate move downward along the height direction of the lifting seat to the opening of the liquid outlet of the electrolytic rod extending into the workpiece.

8. The rotary electrolytic polishing equipment according to claim 7, characterized in that: The lifting plate is located below the force bearing member and fixedly connected to the positioning member. When the liquid outlet of the electrolytic rod extends into the opening of the workpiece, the positioning member abuts against the upper surface of the lifting seat.

9. The rotary electrolytic polishing equipment according to claim 6, characterized in that: The first electrode is in the form of a sheet and is evenly distributed on the upper surface of the turntable. Two or more workpieces are arranged on the upper surface of the first electrode along the length direction. The turntable is provided with a positioning seat for positioning the two or more workpieces around the first electrode. The frame fixes two or more electrolytic rods of the second electrode in parallel, and the liquid outlets of the two or more electrolytic rods simultaneously inject electrolyte into the openings of the workpieces whose number is the same as that of the electrolytic rods.

10. The rotary electrolytic polishing equipment according to claim 3, characterized in that: Also includes: An electrolytic power source and a current collecting device, wherein the current collecting device is coaxially assembled on the top end of the driving shaft, and the current collecting device supplies power to the electrolytic power source through a flexible conductive device.

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