CN112442728B

CN112442728B - Rotary electrolytic polishing equipment

Info

Publication number: CN112442728B
Application number: CN202011392975.5A
Authority: CN
Inventors: 徐春奇
Original assignee: Wuxi Pengzhen Intelligent Technology Co ltd
Current assignee: Wuxi Pengzhen Intelligent Technology Co ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2024-05-24
Anticipated expiration: 2040-12-02
Also published as: CN112442728A

Abstract

The application provides rotary electrolytic polishing equipment, which comprises a driving mechanism, an upper disc and a lower disc, wherein an annular column is annularly arranged on the outer side of the lower disc, at least one guiding separation area is formed at the top of the annular column, a plurality of guiding mechanisms are vertically arranged between the upper disc and the lower disc and are connected with the upper disc or the lower disc, a plurality of workpiece positioning seats and electrolytic rods which rotate coaxially and synchronously are accommodated in a cup body, one of the workpiece positioning seats and the electrolytic rods is slidably connected with the guiding mechanism, the other one of the workpiece positioning seats and the electrolytic rods is connected with the upper disc or the lower disc, and the upper disc and the lower disc realize longitudinal separation between the electrolytic rods and an inner cavity of the cup body in the guiding separation area in the coaxial synchronous rotation process. In the application, the workpiece positioning seat can continuously execute electrolytic polishing in the rotating process in the waste liquid tank, so that the technical problems that the electrolytic polishing time is too short and continuous feeding and discharging cannot be realized in the traditional electrolytic polishing equipment are solved.

Description

Rotary electrolytic polishing equipment

Technical Field

The invention relates to the technical field of electrolytic polishing, in particular to rotary electrolytic polishing equipment.

Background

Electrolytic polishing is a method for finishing the surface of a metal workpiece, which is to place the metal workpiece in an electrolytic polishing tank filled with electrolytic polishing liquid and electrify the electrolytic polishing liquid for electrolysis. Along with the progress of electrolysis, a liquid film with larger viscosity is formed on the surface of a metal workpiece, the thickness distribution of the liquid film on the uneven surface of the metal workpiece is uneven, the liquid film on the surface of a convex part is thin, and the liquid film on the surface of the other part is thick, so that the resistance of each part of the surface of the anode is different. The raised part of the metal workpiece has small resistance and larger current density, so that the raised part is dissolved faster than the recessed part. Therefore, the rough and uneven surface of the metal workpiece becomes smooth and bright, and the polishing effect is achieved.

At present, in the field of electrolytic polishing, in particular to the industries of stainless steel thermos bottles and thermos cups, linear electrolytic polishing equipment and process are mostly adopted for electrolytic polishing treatment of container liners. The method is characterized in that a container is generally placed on a conductive platform with an opening upwards, a specific electrolyte is filled into the container from top to bottom, then a power supply is connected, and the electrochemical machining is performed by utilizing the principle that anodic dissolution occurs firstly on microscopic bumps on the surface of metal in the specific electrolyte and under proper current density.

The applicant points out that in the prior art, all electrolytic polishing devices are used for integrally driving a plurality of cups with upward mouths to be inserted into an electrolytic rod, and then pouring electrolyte downwards into the cups for electrolytic polishing. The applicant indicates that the technical problems of too short electrolytic polishing time and incapability of realizing continuous feeding and discharging exist in the prior art. In the prior art, when a cup body (i.e., a workpiece) with an opening is electropolished by a multichannel continuous electropolishing device and polishing method with a subject name of "metal baseband" (publication No. CN102851729 a) and a subject name of "electropolishing device" (publication No. CN 203683716U), the workpiece in the electropolishing tank can only be electropolished integrally, and after the electropolishing treatment is completed, the electrolytic rod and the cup body need to be separated integrally to perform loading and unloading operations of the workpiece, so that the problem that the electropolishing time for executing the electropolishing on the workpiece in the electropolishing device in the prior art is too short is caused.

In view of this, there is a need for an improvement in the electropolishing apparatus of the prior art to address the above-described problems.

Disclosure of Invention

The invention aims to disclose rotary type electrolytic polishing equipment, which is used for solving the technical problems that the electrolytic polishing time of the traditional electrolytic polishing equipment is too short and continuous feeding and discharging cannot be realized.

To achieve the above object, the present invention provides a rotary electropolishing apparatus comprising:

The driving mechanism is driven by the driving mechanism and performs coaxial synchronous rotation and is provided with an upper disc and a lower disc which are arranged in parallel, an outer side ring of the lower disc is provided with a ring column, the top of the ring column is provided with at least one guiding separation area, a plurality of guiding mechanisms which are vertically arranged between the upper disc and the lower disc and are connected with the upper disc or the lower disc, a plurality of workpiece positioning seats and electrolytic bars which perform coaxial synchronous rotation are arranged on the top of the ring column, the workpiece positioning seats accommodate a cup body,

One of the workpiece positioning seat and the electrolytic rod is in sliding connection with the guide mechanism, the other one of the workpiece positioning seat and the electrolytic rod is connected with the upper disc or the lower disc, and the upper disc and the lower disc realize longitudinal separation between the electrolytic rod and the inner cavity of the cup body in the guide separation area in the coaxial synchronous rotation process.

As a further improvement of the present invention, the guide mechanism includes: the vertical track, with vertical track sliding connection's sliding block, set up the rolling mechanism in the sliding block below, the work piece positioning seat sets up in the radial outside of sliding block, lower disc and ring post mutual separation.

As a further improvement of the present invention, a plurality of guide mechanisms are vertically arranged between the upper disk and the lower disk in an annular equidistant manner, and the sliding block of each guide mechanism is arranged radially outside the vertical rail.

As a further improvement of the invention, the guide separation zone is at least formed in a state that more than two electrolytic rods are longitudinally separated from the cup body.

As a further improvement of the invention, the distance of relative movement between the electrolytic rod and the cup body in the vertical direction in the guide separation zone is larger than the distance of vertical insertion of the electrolytic rod into the cup body.

As a further improvement of the present invention, there is also included: the waste liquid tank is formed by encircling an inner annular wall, a bottom wall and an outer annular wall, the workpiece positioning seat is of a hollowed-out structure and accommodates at least one cup body along the radial extending direction of the waste liquid tank, the cup body is vertically arranged in the workpiece positioning seat, and an opening formed by the cup body is vertically and coaxially arranged with the electrolytic rod; a rotating shaft is arranged between the upper disc and the lower disc which are arranged in parallel, and the rotating shaft is driven by a driving mechanism.

As a further improvement of the invention, the rolling mechanism rolls circumferentially along the annular end surface formed at the top of the annular column, and realizes longitudinal separation and longitudinal insertion between the electrolytic rod and the inner cavity of the cup body sequentially when passing through the guide separation zone.

As a further improvement of the present invention, there is also included: and the liquid return tank is arranged at the bottom of the waste liquid tank and is communicated with the waste liquid tank.

As a further improvement of the present invention, the driving mechanism includes: a swivel mechanism and a driving unit; the rotary mechanism comprises an inner ring, an outer ring fixedly connected with the inner ring and enclosing the inner ring, a middle ring arranged between the inner ring and the outer ring, a first bearing arranged between the middle ring and the inner ring, a gear arranged on the radial outer side of the middle ring, a reduction mechanism meshed with the gear arranged on the radial outer side of the middle ring and arranged on the driving unit, a connecting plate connected with the lower disc arranged on the top of the middle ring, and a rotary shaft connected with the circle center of the upper disc and the circle center of the lower disc and integrated with the upper disc and the lower disc.

As a further improvement of the invention, the guide separation area is formed by a protruding part or a notch part, and at least two or more electrolytic bars are longitudinally separated from the cup body at the top of the protruding part or the bottom of the notch part.

As a further improvement of the invention, the circular column is vertically arranged on the inner circular wall, at least one notch part is arranged along the circumferential direction of the circular column to form the guiding separation area, the workpiece positioning seat is in sliding connection with the guiding mechanism through a sliding block, the notch part at least forms a first guiding edge for longitudinally separating the cup body from the electrolytic rod and a second guiding edge for longitudinally inserting, the electrolytic rod is in a ring shape and is vertically arranged below the upper disc and is coaxially arranged with the opening of the cup body, and the opening of the cup body is upward;

The guide mechanism is vertically arranged at the edge of the lower disc, drives the rolling mechanism to do circular motion at the top of the inner annular wall along with the rotation of the lower disc, and the workpiece positioning seat reduces the height of the workpiece positioning seat along the first guide edge in a passive mode when the workpiece positioning seat transversely spans the notch part so as to longitudinally separate the cup body from the electrolytic rod; the workpiece positioning seat is passively raised along the second guide edge when transversely crossing the notch part so as to longitudinally insert the cup body into the electrolytic rod.

As a further improvement of the invention, the circular column is vertically arranged on the inner circular wall, at least one notch part is formed along the circumferential direction of the circular column to form the guide separation area, the notch part at least forms a first guide edge for longitudinally separating the cup body from the electrolytic rod and a second guide edge for longitudinally inserting, the electrolytic rod is annular and vertically upwards arranged in the waste liquid tank, the electrolytic rod is in sliding connection with the guide mechanism through a sliding block, the workpiece positioning seat is annularly and vertically arranged below the upper disc, and the cup body is embedded into the workpiece positioning seat in a downward opening posture;

The guide mechanism is vertically arranged at the edge of the lower disc, drives the rolling mechanism to do circular motion at the top of the inner annular wall along with the rotation of the lower disc, and the workpiece positioning seat reduces the height of the electrolytic rod along the first guide edge in a passive mode when transversely crossing the notch part so as to longitudinally separate the cup body from the electrolytic rod; the workpiece positioning seat passively increases the height of the electrolytic rod along the second guide edge when transversely crossing the notch part so as to longitudinally insert the electrolytic rod into the cup body.

As a further improvement of the invention, the guide mechanism is vertically arranged between the upper disc and the lower disc, the guide mechanism is connected with the lower disc, at least one protruding part is arranged along the circumferential direction of the circular column to form the guide separation area, the electrolytic rod is in sliding connection with the guide mechanism through the sliding block and is vertically downwards arranged, the protruding part at least forms a third guide edge for longitudinally separating the cup body from the electrolytic rod and a fourth guide edge for longitudinally inserting, the electrolytic rod is annularly and vertically arranged below the upper disc and is coaxially arranged with the opening of the cup body, and the opening of the cup body is upwards;

The circular ring column is vertically arranged on the inner annular wall, and drives the rolling mechanism to do circular motion at the top of the inner annular wall along with the rotation of the lower disc, and the height of the electrolytic rod is passively increased along the third guide edge when the electrolytic rod transversely spans the protruding part, so that the electrolytic rod is vertically pulled out of the cup body; the electrolytic rod is passively lowered in height along the fourth guide edge while traversing the boss to longitudinally insert the electrolytic rod into the cup.

As a further improvement of the invention, the circular column is vertically arranged on the inner circular wall, at least one protruding part is arranged along the circumferential direction of the circular column to form the guiding separation area, the protruding part at least forms a third guiding edge for longitudinally separating the cup body from the electrolytic rod and a fourth guiding edge for longitudinally inserting, the electrolytic rod is annular and vertically upwards arranged in the waste liquid tank, the workpiece positioning seat is in sliding connection with the guiding mechanism through a sliding block, the workpiece positioning seat is annularly and vertically arranged below the upper disc, and the cup body is embedded into the workpiece positioning seat in a downward opening posture;

The guide mechanism is vertically arranged at the edge of the lower disc, drives the rolling mechanism to do circular motion at the top of the inner annular wall along with the rotation of the lower disc, and the workpiece positioning seat increases the height of the workpiece positioning seat along the third guide edge in a passive mode when the workpiece positioning seat transversely spans the protruding part so as to longitudinally separate the cup body from the electrolytic rod; the workpiece positioning seat is passively lowered in height along the fourth guide edge when transversely crossing the convex part so as to longitudinally insert the electrolytic rod into the cup body.

As a further improvement of the present invention, there is also included: the rotary current collector is coaxially arranged with the rotating shaft, and a plurality of radial conductive plates are connected with the rotary current collector, and each conductive plate is connected with a plurality of groups of electrolytic rods which are radially arranged outwards.

As a further improvement of the present invention, there is also included: the top of the shell is provided with at least one waste gas suction port for extracting waste gas;

The shell part shields the driving mechanism, the upper disc, the lower disc, a plurality of workpiece positioning seats which rotate coaxially and synchronously and the electrolytic rod.

Compared with the prior art, the invention has the beneficial effects that:

In the application, an upper disc and a lower disc coaxially and synchronously rotate and are arranged in parallel, a circular column is annularly arranged on the outer side of the lower disc, at least one guiding separation area is formed at the top of the side part of the circular column, a plurality of guiding mechanisms are vertically arranged between the upper disc and the lower disc and connected with the upper disc or the lower disc, a plurality of workpiece positioning seats and electrolysis rods are coaxially and synchronously rotated, one of the workpiece positioning seats and the electrolysis rods is slidably connected with the guiding mechanisms, the other one of the workpiece positioning seats and the electrolysis rods is connected with the upper disc or the lower disc, and the upper disc and the lower disc realize longitudinal separation between the electrolysis rods and the inner cavity of a cup body in the guiding separation area in the coaxial and synchronous rotation process.

Drawings

FIG. 1 is a top view of a rotary electropolishing apparatus of the present invention;

FIG. 2 is a cross-sectional view taken along the direction A-A in FIG. 1;

FIG. 3 is a partial schematic view showing a guide separation zone formed by a notch portion after an annular column is unfolded in a rotary electropolishing apparatus according to an embodiment of the present disclosure, and in FIG. 3, a plurality of guide mechanisms are shown partially annularly arranged at the edge of a lower disc;

FIG. 4 is a top view showing only the various components enclosed to form the waste tank;

FIG. 5 is a schematic view of the electrolytic wand after being longitudinally separated from the cup body;

FIG. 6 is a schematic view of the four cup-mouth-up cups received by the workpiece positioning sockets moving upward in the direction of movement indicated by arrow C to longitudinally insert the electrolytic rods into the cups;

FIG. 7 is a schematic view of the four cup-mouth-up cups received by the workpiece positioning seats moving downwardly in the direction of movement indicated by arrow C' to longitudinally separate the electrolytic rods from the cups;

FIG. 8 is a top view of a plurality of guide mechanisms annularly arranged at the edge of the lower disc;

FIG. 9 is a schematic view showing a part of a guiding and separating region formed by a notch after an annular column is unfolded in a rotary electropolishing apparatus according to an embodiment, wherein an arrow D indicates a direction in which an upper disk and a lower disk rotate coaxially and synchronously;

FIG. 10 is a cross-sectional view of the swivel mechanism along its center;

FIG. 11 is a schematic view of the swivel mechanism of FIG. 10 after installation with a lower disc;

FIG. 12 is a schematic view of a vertical rail and a slider slidably coupled to the vertical rail included in the guide mechanism after assembly;

FIG. 13 is a transverse cross-sectional view of the vertical track and slider;

FIG. 14 is a schematic view of a slider assembled with a workpiece positioning seat;

FIG. 15 is a top view of the slider assembled with the workpiece positioning seat;

FIG. 16 is a plan view showing only respective components enclosed to form a waste liquid tank in a modification;

fig. 17 is a schematic view of the developed circular column in the modification corresponding to fig. 16;

FIG. 18 is a partial schematic view showing a guide separation area formed by a convex portion after the ring column in the rotary electropolishing apparatus disclosed in a modification, wherein arrow D is the direction in which the upper disk and the lower disk rotate coaxially and synchronously;

FIG. 19 is a schematic view showing the opening of the cup facing downward and connected to the seal assembly and anode in electrolytic operation to electropolish the inner wall surface of the cup;

FIG. 20 is a top view of a workpiece positioning seat;

FIG. 21 is a schematic view of the cup inserted into the workpiece positioning seat with the opening facing downward and longitudinally inserted with the electrolytic rod;

FIG. 22 is a partial schematic view showing a guide separation region after the expansion of a circular column in a rotary electropolishing apparatus disclosed in another modification, wherein a solid line is an example of the guide separation region being formed by a convex portion or a notch portion, and a broken line is an example of the guide separation region being formed by a notch portion, and wherein the convex portion and the notch portion are constituted by continuous straight lines;

Fig. 23 is a partial schematic view showing a guide separation region after the annular column is expanded and the guide separation region is formed by a convex portion or a notch portion in a rotary electropolishing apparatus disclosed in still another modification, wherein a solid line is an example in which the guide separation region is formed by a convex portion and a broken line is an example in which the guide separation region is formed by a notch portion, and at the same time, the convex portion and the notch portion are formed by continuous curves.

Detailed Description

The present invention will be described in detail below with reference to the embodiments shown in the drawings, but it should be understood that the embodiments are not limited to the present invention, and functional, method, or structural equivalents and alternatives according to the embodiments are within the scope of protection of the present invention by those skilled in the art.

It is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", "positive direction", "negative direction" and the like refer to the azimuth or positional relationship based on the azimuth or positional relationship shown in the drawings, it is merely for convenience in describing the present technical solution and for simplifying the description, and does not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present technical solution. The term "above" generally includes this number unless specifically stated otherwise.

Embodiment one:

An embodiment of a rotary electropolishing apparatus in accordance with the present invention is shown with reference to figures 1-15.

In the present embodiment, a rotary electropolishing apparatus (hereinafter or simply "apparatus") is provided for electropolishing at least the inner wall surface of a workpiece (e.g., cup 30) having an opening. The apparatus includes: the driving mechanism is driven by the driving mechanism and performs coaxial synchronous rotation, the upper disc 51 and the lower disc 52 are arranged in parallel, the outer side of the lower disc 52 is annularly provided with a circular column 113, the top of the circular column 113 is provided with at least one guiding separation area, a plurality of guiding mechanisms 40 which are vertically arranged between the upper disc 51 and the lower disc 52 and are connected with the upper disc 51 or the lower disc 52 perform coaxial synchronous rotation, a plurality of workpiece positioning seats 20 and electrolysis bars 54 are coaxially and synchronously rotated, and the workpiece positioning seats 20 accommodate the cup body 30. The upper disc 51 and the lower disc 52 achieve a longitudinal separation between the electrolytic rods 54 and the internal cavity of the cup 30 in said guide separation zone during coaxial synchronous rotation. In the present embodiment, the circular column 113 and the lower disc 52 are separated from each other in the radial direction.

It should be noted that, the workpiece positioning seat 20 in the present application may be in a hollow structure and may be welded by using materials such as stainless steel, and the workpiece positioning seat 20 may also be understood as a plate-shaped member with a through hole, or other reasonable deformation structures (for example, a cylindrical workpiece is clamped to clamp the outer side wall surface of the cup body 30 by the cylindrical workpiece), so long as the workpiece positioning seat 20 can movably fix the cup body 30.

As shown in connection with fig. 4, the apparatus further comprises: the waste liquid tank 100 is annularly arranged outside the lower disc 52 and is formed by encircling an inner annular wall 105, a bottom wall 104 and an outer annular wall 103, the workpiece positioning seat 20 is in a hollowed-out structure and accommodates at least one cup body 30 along the radial extending direction of the waste liquid tank 100, the cup body 30 is vertically arranged in the workpiece positioning seat 20, and an opening formed by the cup body 30 is vertically and coaxially arranged with the electrolytic rod 54; a rotary shaft 14 is provided between the upper disc 51 and the lower disc 52 arranged in parallel, and the rotary shaft 14 is driven by a driving mechanism. The inner annular wall 105, the bottom wall 104 and the outer annular wall 103 rest laterally on the inner upright 101 and the outer upright 102. The tops of the inner upright post 101 and the outer upright post 102 are provided with a circle of steel beams 111 with square cross sections, and the tops of the inner annular wall 105 and the outer annular wall 103 form bending parts for hooking the steel beams 111. The bent portion of the steel beam 111 is hooked on the top of the inner annular wall 105 to form an annular track, and an annular column 113 is provided on the track. The bent portion of the outer annular wall 103, which hooks the steel beam 111, forms a circular track 182. The function of the waste liquid tank 100 in this embodiment is to collect part of the electrolyte overflowed from the opening of the cup 30, and a plurality of work positioning seats 20 arranged in a ring shape accommodate the cup 30 to make a ring-shaped rotation in the area surrounded by the waste liquid tank 100.

As shown in fig. 10 and 11, in the present embodiment, the driving mechanism includes: a swivel mechanism 13 and a drive unit 12. The rotary mechanism 13 comprises an inner ring 136, an outer ring 134 fixedly connected with the inner ring 136 and enclosing the inner ring 136, and a middle ring 133 arranged between the inner ring 136 and the outer ring 134, wherein the middle ring 133 and the inner ring 136 are provided with a first bearing 137, the radial outer side of the middle ring 133 is provided with a gear, the driving unit 12 is provided with a reduction mechanism 127 meshed with the gear arranged on the radial outer side of the middle ring 133, the top of the middle ring 133 is provided with a connecting plate 131 connected with the lower disc 52, and the rotary shaft 14 is connected with the circle centers of the upper disc 51 and the lower disc 52 and forms an integrated structure with the upper disc 51 and the lower disc 52. A circle of through holes 135 is formed at the edge of the outer ring 134, a circle of through holes 132 is formed at the edge of the connecting plate 131, an upper blind hole matched with the through holes 132 is formed above the edge of the middle ring 133, and fixing pieces such as bolts can continuously penetrate through the through holes 132 and the upper blind holes of the middle ring 133 so as to fix the connecting plate 131 on the middle ring 133. The edge of the bottom of the inner ring 136 is provided with a circle of lower blind holes matched with the through holes 135, and fixing pieces such as bolts can continuously penetrate through the through holes 135 and the lower blind holes of the inner ring 136 so as to fixedly connect the inner ring 136 with the outer ring 134. The outer side of the inner race 136 and the inner side of the middle race 133 are provided with a slider, which may be a ball or a screw. The gear-meshed speed reducing mechanism 127 is arranged on the outer side of the middle ring 133 in the radial direction, the speed reducing mechanism 127 is driven by the driving unit 12 in fig. 1 to drive the lower disc 52 to horizontally rotate, and the rotating shaft 14 drives the upper disc 51 to rotate, so that the upper disc 51 and the lower disc 52 coaxially and synchronously rotate.

The upper and lower disks 51 and 52 rotate horizontally about the vertical direction of the center axis Q in fig. 1, and the upper and lower disks 51 and 52 rotate clockwise or counterclockwise in the direction of the arrow D. The guide mechanism 40 is fixedly connected with the lower disc 52 in the present embodiment, and the plurality of guide mechanisms 40 are circular and fixedly arranged at the edge of the lower disc 52. The guiding mechanism 40 is not provided with a power mechanism such as a servo motor, a linear motor and the like, and is driven by the lower disc 52 to do circular motion only under the drive of the driving mechanism, when the rolling mechanism 24 is arranged at the bottom of the sliding block 21 in the guiding mechanism 40, the rolling mechanism 24 performs circumferential rolling along the annular end surface formed by the top of the annular column 113 arranged above the inner annular wall 105, and the longitudinal separation and the longitudinal insertion between the electrolytic rod 54 and the inner cavity of the cup body 30 are sequentially realized when the guiding separation area passes through (i.e. transversely spans).

In this embodiment, when the upper disc 51 and the lower disc 52 rotate horizontally around the vertical direction of the central axis Q in fig. 1, the workpiece positioning seat 20 forms the "loading and unloading area" in fig. 1 when it carries the cup body 30 laterally across the guiding and separating area, and the areas not belonging to the guiding and separating area are all non-guiding and separating areas in the circumferential direction. The electrolytic rod 54 in the non-guide separation zone is always kept inserted into the cup 30 and continuously performs the electrolytic polishing process on the plurality of cups 30 in the work positioning seat 20 in a ring shape.

Referring to fig. 4, the guiding separation region refers to the circular ring section where the bracket M is located in this embodiment, and the circular ring section where the bracket M is removed forms the non-guiding separation region. The drive mechanism is disposed in a region 144 defined by the inner annular wall 105. In the non-guide separation zone, the electrolytic rod 54 is always kept inserted into the cup 30 and continuously subjected to the electrolytic polishing process. In this embodiment, the guide separation zone is formed by the notch 200.

As shown in fig. 2 and 5, one of the work positioning seat 20 and the electrolytic rod 54 is slidably connected to the guide mechanism 40, and the other of the work positioning seat 20 and the electrolytic rod 54 is connected to the upper disk 51 or the lower disk 52. Therefore, when the workpiece positioning seat 20 is slidably connected with the guiding mechanism 40, a circle of the electrolysis rods 54 is fixed under the upper disc 51 in a circular shape, and the electrolysis rods 54 are vertically and downwardly arranged. Meanwhile, the device further comprises: a rotating current collector 60 coaxially provided with the rotary shaft 14, and a plurality of conductive plates 61 radially connected to the rotating current collector 60, each conductive plate 61 being connected to a plurality of groups of the electrolytic rods 54 arranged radially outward.

Preferably, in this embodiment, the apparatus further includes: a return tank 109 provided at the bottom of the waste liquid tank 100, the return tank 109 being in communication with the waste liquid tank 100 through a pipe (not shown), so that electrolyte flowing out of the waste liquid tank 100 is collected and stored through the return tank 109 and is re-pumped into the cup 30 through the pipe (not shown) by a circulation pump (not shown). The conductive plates 61 are radially distributed in annular equidistant manner, the number of the conductive plates 61 is equal to that of the workpiece positioning seats 20, and the conductive plates 61 and the workpiece positioning seats 20 are approximately in a superposed state in the plane view projection angle so as to ensure that the electrolytic rod 54 can be accurately inserted into the opening 301 of the cup body 30. The rotating collector 60 is always in contact with the brush 62, and if the electrolytic rod 54 is configured as a cathode, the work positioning seat 20 is correspondingly provided as an anode, so that the cup 30 serves as an anode. The cup 30 is preferably made in whole or in part of a metallic material such as stainless steel in this embodiment. The rotating current collector 60 is insulated from the rotating shaft 14. The top of the rotating shaft 14 forms a radially reduced section 141 vertically inserted into the rotary current collector 60. The brush 62 is electrically connected to the negative electrode of the DC power source, and the waste liquid tank 100 is connected to the positive electrode of the DC power source via a wire.

Meanwhile, in this embodiment, the direct current power supply used for the electrolytic polishing is 12 to 20V. The whole electrolytic polishing time is 60-480 seconds, and the electrolytic polishing current is 30-100A. The entire electropolishing time refers to the time required for rotation in the non-guided separation zone in the case where the cup 30 is inserted longitudinally with the electrolytic rod 54 (or the electrolytic rod 54 a) and ensures that the inside of the cup 30 is filled with electrolyte, and the time required for rotation of each cup 30 in the non-guided separation zone is equal. The applicant has noted that by increasing or decreasing the rotation speed of the drive unit 12, the treatment time of the electropolishing of each cup 30 can be adjusted arbitrarily according to the process requirements, thereby significantly increasing the practical use of the apparatus for electropolishing different surfaces of different workpieces and increasing the adaptability of the apparatus in performing electropolishing. Meanwhile, in this embodiment, the driving unit 12 may adopt a servo motor or a stepper motor, and may adopt a PLC or a single chip microcomputer to control the driving unit 12, thereby improving the automation level of the apparatus, and may adopt an upper computer to connect a plurality of rotary electropolishing apparatuses and their affiliated controlled apparatuses through an industrial control bus and based on a MODBUS protocol or UART interface, thereby realizing centralized batch intelligent production.

Meanwhile, in the present embodiment, the end 611 of each conductive plate 61 is fixed by the locking member 511 and electrically connected to the four electrolytic rods 54, and the work positioning base 20 lifts the four upward-opening cups 30 to perform a lifting movement above the waste liquid tank 100, and as shown in fig. 6, when the work positioning base 20 lifts the four cups 30 to move upward along the arrow C, the cups 30a are lifted to the position where the cups 30b are located, and at this time the electrolytic rods 54 are inserted into the cups 30. Referring to fig. 7, when the workpiece positioning seat 20 lifts the four cups 30 to move downward along arrow C', the cup 30b falls down again to the position of the cup 30a, and at this time, the electrolytic rod 54 is pulled out from the cup 30 (i.e., the longitudinal separation of the cup 30 from the electrolytic rod 54 is achieved). The conductive plate 61 may be made of a metal material such as copper having excellent conductivity.

Referring to fig. 5, 12 to 15, in the present embodiment, the guide mechanism 40 includes: the vertical rail 401, the sliding block 21 slidably connected to the vertical rail 401, the rolling mechanism 24 disposed below the sliding block 21, the workpiece positioning seat 20 disposed radially outside the sliding block 21, and the lower disc 52 and the circular column 113 separated from each other. A plurality of guide mechanisms 40 are vertically arranged in an annular equidistant manner between the upper disc 51 and the lower disc 52, and the slide block 21 of each guide mechanism 40 is disposed radially outside the vertical rail 401. As shown in fig. 15, a vertical column 44 vertically arranged and a reinforcing plate 41 vertically arranged with respect to the column 44 are provided on the inner side in the radial direction of the vertical rail 401, the reinforcing plate 41 is connected to the column 44 with a base 42, and the base 42 is fixedly connected to the lower disk 52. The base 42 is provided with four mounting holes 45 to penetrate the mounting holes 45 by bolts 46 and be screwed and fixed with blind holes (not shown) formed in the lower disc 52.

Specifically, in the present embodiment, the apparatus includes twenty-four guide mechanisms 40 and twenty-four work positioning seats 20 arranged in number, each work positioning seat 20 being slidably connected to one guide mechanism 40 by a slide block 21. The guide mechanism 40 is vertically disposed. A sliding member 421 is disposed between the vertical rail 401 and the sliding block 21, and the sliding member 421 may be a ball or a rail. The slide block 21 includes a slide base 211, a vertical plate 22 extending vertically downward from the slide base 211, and a rolling mechanism 24 disposed at the end of the vertical plate 22, wherein the rolling mechanism 24 may be a bearing, and the rolling mechanism 24 rolls on an annular track 181 formed at the top of the annular column 113 (i.e., an annular end surface formed at the top of the annular column 113). The rolling mechanism 24 is assembled with the riser 22 by a laterally arranged rotation shaft 23. Meanwhile, the workpiece positioning seat 20 is connected with a connecting arm 212 which is vertically and downwardly extended from the sliding base 211, and the workpiece positioning seat 20 is vertically arranged with the connecting arm 212.

The circular column 113 is a solid body with a certain thickness (along the radial direction), and is vertically arranged above the inner circular wall 105, and at least one notch 200 is formed along the circumferential direction of the circular column 113 to form a guiding separation area, the workpiece positioning seat 20 is slidably connected with the guiding mechanism 40 through the sliding block 21, the notch at least forms a first guiding edge 116 for longitudinally separating the cup body 30 from the electrolytic rod 54 and a second guiding edge 118 for longitudinally inserting, the electrolytic rod 54 is annularly and vertically arranged below the upper circular disc 51, and is coaxially arranged with the opening of the cup body 30, and the opening of the cup body 30 is upward. The annular post 113 and the inner annular wall 105 can be considered as two components disposed one above the other or as a single piece.

The guiding mechanism 40 is vertically disposed at the edge of the lower disc 52, and drives the rolling mechanism 24 to perform a circular motion on an annular end surface formed at the top of the circular column 113 along with the rotation of the lower disc 52, and the workpiece positioning seat 20 passively lowers the height of the workpiece positioning seat 20 along the first guiding edge 116 when transversely crossing the notch, so as to longitudinally separate the cup 30 from the electrolytic rod 54; the workpiece fixture 20 passively raises the height of the workpiece fixture 20 along the second guide edge 118 while traversing the cutout portion to longitudinally insert the cup 30 into the electrolytic wand 54. The thickness of the annular posts 113 is at least greater than the width of the rolling mechanism 24 to provide good support for the rolling mechanism 24 and prevent the rolling mechanism 24 from falling during rotation. Preferably, in the present embodiment, a ring of flanges (not shown) or two rings of flanges (not shown) may be further provided radially outside the top of the circular cylinder 113 to provide a good guiding effect for the rolling mechanism by the ring of flanges or the two rings of flanges. The notch 200 is defined by the first guide edge 116, the bottom flat edge 117, and the second guide edge 118. In particular, in the present embodiment, the "bottom flat side 117" and the "bottom flat side 122", "top flat side 117a", "flat side 115", "flat side 119", "flat side 139" referred to hereinafter refer to a feature of "flat" in which a circular column 113 having a three-dimensional structure in a three-dimensional space is formed from a developed view.

The plurality of work positioning seats 20 and the plurality of electrolytic rods 54 are all arranged in a circular ring shape (in a top view angle), and are inserted and separated in the longitudinal direction along with synchronous and same-direction rotation of the upper disc 51 and the lower disc 52 in the horizontal direction, when the electrolytic rods 54 are inserted into the openings of the cup body 30, electrolytic polishing is performed, and when the electrolytic rods 54 are pulled out of the openings of the cup body 30, electrolytic polishing is stopped. In the present application, the term "longitudinal" means a vertical direction, and the term "transverse" means a horizontal direction. In electrolytic polishing, the cup 30 needs to be filled with an electrolyte. When the opening of the cup 30 is upward, the external manipulator (not shown) configured with a pipe for adding electrolyte to the opening of the cup 30 can be used to inject the electrolyte into the cup 30 with the opening upward, and ensure that the electrolyte can fully infiltrate the inner wall surface of the cup 30, so as to prevent the inner wall surface of the cup 30 from generating partial cavitation, white spots and other electrolysis defects in the electrolytic polishing process.

In this embodiment, at least two or more electrolytic rods 54 are formed in the guide separation zone in a state of being longitudinally separated from the cup body 30, as shown in fig. 3. The number of conditions in which the guide separation zone forms the longitudinal separation of the electrolytic rods 54 from the cup body 30 depends on the slope of the first guide edge 116 and the second guide edge 118 or the lateral length of the bottom flat edge 117. Meanwhile, the distance in which the relative movement between the electrolytic rod 54 and the cup 30 in the vertical direction occurs in the guide separation zone is greater than the distance in which the electrolytic rod 54 is vertically inserted into the cup 30.

Meanwhile, referring to fig. 3 and 9, when the workpiece positioning seat 20 suspended by the ring-shaped guide mechanism 40 uniformly distributed at equal intervals moves circularly in the waste liquid tank 100 in the circular shape in fig. 4, the workpiece positioning seat 20 sequentially passes through the guide separation area, and sequentially takes a state where an arrow 311 is located, a state where an arrow 321 is located, and a state where an arrow 331 is located. The workpiece positioning seat 20 is in a state that two electrolytic rods 54 are longitudinally separated from the cup body 30 in a state that an arrow 331 is positioned, and in the process, the rolling mechanism 24 rotates along the same horizontal plane along the bottom flat side 117.

During the vertical movement of the workpiece positioning seat 20 in the guide separation area, the vertical rail 401 does not move vertically, and when the rolling mechanism 24 rolls on the circular rail 181 formed at the top of the circular column 113, the rolling mechanism 24 moves along the straight sides 115 in the directions indicated by the arrow D, respectively, and when the workpiece positioning seat laterally crosses the inflection point 1, the rolling mechanism 24 contacts the first guide side 116. At this time, the cup 30 with the four openings up accommodated in the workpiece positioning seat 20 moves downward under the action of gravity, and the driving mechanism still continuously drives the upper disc 51 and the lower disc 52 to rotate. The scrolling mechanism 24 then continues to scroll down the first guide edge 116 and laterally across the inflection point 2 and into the bottom flat edge 117.

Referring to fig. 3, at this time, the electrolytic rod 54 is thoroughly separated from the cup 30 in the longitudinal direction, and the longitudinal distance therebetween is maximized. The operator can take out the electropolished cup 30 from the workpiece positioning seat 20 to complete the blanking operation. Then, the operator loads the cup 30, which is not subjected to electrolytic polishing, into the work piece positioning seat 20, which is also located on the bottom flat edge 117, forward to complete the loading operation of the cup 30. Then, with further rotation of the upper and lower disks 51, 52 in the direction of arrow D, the rolling mechanism 24 rolls upward transversely across the inflection point 3 and into the second guide edge 118 in the direction of arrow D, and as the four electrolytic rods 54 integrally assembled in a quarter group are also rotated synchronously by the drive of the upper disk 51, the four electrolytic rods 54 are gradually inserted longitudinally into the four cups 30 and electrolysis is started during the upward rolling of the second guide edge 118 by the rolling mechanism 24. Finally, after the rolling mechanism 24 has traversed the inflection point 4 laterally in the direction indicated by arrow D, the electrolytic rod 54 is inserted longitudinally to the bottom and continues to rotate in the direction indicated by arrow D, with the rolling mechanism 24 in contact with the flat edge 119. The right side of the straight edge 129 in fig. 9 is joined end to end with the left side of the straight edge 115 and forms a circle.

In this embodiment, it is preferable to always hold two workpiece positioning seats 20 in the arc section corresponding to the bottom flat edge 117, and of course, only one workpiece positioning seat 20 may be held. The applicant has noted that, as long as the scrolling mechanism 24 scrolls on the first guide edge 116 and the second guide edge 118, the electrolytic rod 54 can be longitudinally separated from the opening of the cup body 30 at the level of the horizontal line E, and that whether the longitudinal separation between the electrolytic rod 54 and the cup body 30 is made on the first guide edge 116 or the bottom flat edge 117 or the second guide edge 118 is not considered. Meanwhile, the annular column 113 and the inner annular wall 105 may be integrally formed, and the annular column 113 is disposed above the inner annular wall 105. The flat edge 115, the first guide edge 116, the bottom flat edge 117, the second guide edge 118, the flat edge 119, and the flat edge 129 are connected end to end in order from the top view to form a circular track 181 formed at the top of the circular column 113 in fig. 4. In this embodiment, when the rolling mechanism 24 rolls circumferentially along the annular end surface formed at the top of the annular column 113, the rolling mechanism 24 rolls annularly along the annular rail 181.

The rotary electropolishing apparatus further comprises: the housing 107, at least one exhaust gas suction port 175 for drawing exhaust gas is provided at the top of the housing 107. The housing 107 partially shields the drive mechanism, the upper disc 51, the lower disc 52, the plurality of workpiece positioning seats 20 and the electrolytic rod 54 (or the electrolytic rod 54 a) which are coaxially and synchronously rotated. The offgas suction opening 175 is connected to a suction means (not shown) through a duct (not shown) to discharge toxic and harmful offgas generated from the apparatus during the continuous rotary electropolishing process, so as to ensure that the air in the operation area of the apparatus does not harm the physical health of the operator.

The driving mechanism is positioned at the center of the whole rotary electropolishing equipment and on the lower base 11 of the lower disc 52, and the housing 107 is connected with the base 10 to enclose and shield the components of the upper disc 51, the lower disc 52, the waste liquid tank 100, etc. The housing 107 may be made of stainless steel.

As shown in fig. 9, 16 and 17, in the present embodiment, the guide separation region is formed by a notch 200, and at least two or more electrolytic rods 54 are formed at the bottom of the notch so as to be longitudinally separated from the cup 30. The number of the notch portions may be one, two or more.

As a reasonable modification of the apparatus disclosed in this embodiment, two notches, namely, notch 200 and notch 300, are formed in the circumferential direction of the circular column 113 to form two guiding separation regions, namely, a circular segment in which the bracket M is located and a circular segment in which the bracket N is located. The notch 300 is defined by the first guide edge 121, the bottom flat edge 122, and the second guide edge 123. In fig. 17, the notch 300 is similar to the notch 200, and forms the inflection points 5, 6, 7, and 8 in the same manner. When the lower disc 52 rotates horizontally, the rolling mechanism 24 crosses the notch portion 300 again transversely after crossing the notch portion 200 transversely on the circular track 181 in the direction indicated by the arrow D, the rolling mechanism 24 disposed at the bottom of each guiding mechanism 40 crosses the notch portion 300 again transversely in the same manner, and performs the longitudinal insertion and separation of the electrolytic rod 54 and the cup 30 again, and the feeding and the loading operations of the cup can be sequentially performed in the guiding and separating area formed by the notch portion 300. The straight edge 124 in fig. 17 is joined end-to-end with the straight edge 115. The flat edge 115, the first guide edge 116, the bottom flat edge 117, the second guide edge 118, the flat edge 119, the flat edge 129, the first guide edge 121, the bottom flat edge 122, the second guide edge 123, and the flat edge 124 are connected end to end in this order in a top view, and also form a circular track 181 formed at the top of the circular column 113 in fig. 4.

Therefore, the two operators or robots can respectively execute the operations of discharging and feeding the cup body 30, thereby further improving the production efficiency of the device for executing the electrolytic polishing.

In this embodiment, the workpiece positioning seat 20 arranged in a circular ring shape can realize continuous electrolytic polishing treatment in the circular ring-shaped waste liquid tank 100, and realize the operations of discharging and feeding of the cup body 30 in sequence only in the guiding separation area, so as to solve the technical problems that the electrolytic polishing time of the electrolytic polishing equipment in the prior art is too short and continuous charging and discharging cannot be realized. Of course, the operations of feeding and discharging the cup 30 in the guide separation area can be realized manually or by a robot.

Embodiment two:

This embodiment discloses a first modification of the rotary electropolishing apparatus of the present invention.

As shown in fig. 19 to 21, compared with the first embodiment, the rotary electropolishing apparatus according to the present embodiment is mainly different in that in the present embodiment, the circular column 113 is vertically disposed on the inner annular wall 105, and at least one notch 200 is formed along the circumferential direction of the circular column 113 to form the guiding separation area, the notch forms at least a first guiding edge 116 for longitudinally separating the cup 30 from the electrolytic rod 54a and a second guiding edge 118 for longitudinally inserting, the electrolytic rod 54a is annular and vertically disposed in the waste liquid tank 100, the electrolytic rod 54a is slidably connected with the guiding mechanism 40 through the sliding block 21, the workpiece positioning seat 20 is annular and vertically disposed below the upper disc 51, and the cup 30 is embedded into the workpiece positioning seat 20 in an open downward posture. The electrolytic rod 54a is hollow, and both ends of the electrolytic rod 54a are provided with openings, and the electrolyte is sprayed vertically upwards into the cup body 30 from the opening 541 at the top of the electrolytic rod 54 a.

The guiding mechanism 40 is vertically disposed at the edge of the lower disc 52, and drives the rolling mechanism 24 to perform a circular motion on an annular end surface formed at the top of the circular column 113 along with the rotation of the lower disc 52, and the workpiece positioning seat 20 passively lowers the height of the electrolytic rod 54 along the first guiding edge 116 when transversely crossing the notch, so as to longitudinally separate the cup 30 from the electrolytic rod 54a; the workpiece positioning seat 20 passively raises the height of the electrolytic wand 54a along the second guide edge 118 while traversing the cutout portion to longitudinally insert the electrolytic wand 54a into the cup 30.

Specifically, in this embodiment, the workpiece positioning seat 20 may be formed by welding an elongated stainless steel bar, and the bottom is hollowed to form four holes 217, and the cup opening portion 307 formed with external threads at the cup opening of the cup body 30 may be inserted into the holes 217 of the workpiece positioning seat 20 and embedded into the workpiece positioning seat 20 in a downward opening posture. The apparatus disclosed in this embodiment is the same as the apparatus disclosed in the first embodiment in principle, and the positions of the workpiece positioning seat 20 and the electrolytic rod 54a are exchanged, the cup 30 is subjected to only annular translational movement in the horizontal direction, the electrolytic rod 54a is subjected to annular translational movement not only in the horizontal direction, but also to descending movement and ascending movement in sequence, or to descending movement, translational movement and ascending movement in sequence, when crossing the guide separation area formed by the notch 200, so that the longitudinal insertion and separation of the electrolytic rod 54a and the cup 30 are performed, and the operations of discharging and charging the cup 30 can be sequentially realized in the guide separation area formed by the notch 300. The electrolytic rod 54a also simultaneously generates annular translational movement in the process of sequentially generating descending movement and ascending movement and in the process of sequentially generating descending movement, translational movement and ascending movement; also, the annular translational movement performed by the electrolytic rod 54a remains synchronized with the annular translational movement of the cup 30.

As shown in connection with fig. 19, in this embodiment, the lip 303 of the cup 30 is pressed against the sealing member 204. The sealing ring 204 is sleeved outside the electrolytic rod 54a, and an annular through hole 205 is formed between the sealing ring and the electrolytic rod 54a, so that a circulation channel of electrolyte is established between the inner cavity 302 of the cup body 30 and the return pipe 203 through the annular through hole 205. Meanwhile, a return pipe 203 is connected with the return pipe 203, and a circulating pump (not shown) is communicated with the return pipe 203 so as to provide power for the circulation of the electrolyte 81 through the circulating pump, and the circulating pump pumps the electrolyte into the electrolyte rod 54a with the hollow structure again from the opening at the bottom of the electrolyte rod 54a and drives the electrolyte to flow upwards, and simultaneously the cup opening of the cup body 30 is sealed through a sealing ring 204. In this embodiment, the circulation pump model is 40CQ-20. The arrow flow direction in fig. 19 shows the flow direction of the electrolyte.

When the electrolytic rod 54a conveys upward and sprays the electrolyte from the top opening 541, bubbles of the inner wall surface of the cup 30 may be brought into the waste liquid tank 100 by the electrolyte along the annular through-hole 205, and finally the electrolyte collected in the waste liquid tank 100 may flow into the return tank 109 through the pipe. The return tank 109 may be provided with a bubble isolation device (e.g., a bubble remover) to remove excess air or bubbles from the return tank 109 and pump electrolyte up the bottom opening of the electrolytic wand 54a under the influence of a circulation pump.

Meanwhile, in the present embodiment, the bottom of the return pipe 203 is further provided with a flange ring 206, a lock nut 208 nested on the flange ring 206, and a sealing sleeve 207 nested between the lock nut 208 and the flange ring 206. The bottom of the lock nut 208 is provided with a cathode 209.

In order to further simplify the structure, the cathode 209 may be omitted, and the return pipe 203 made of metal may be used as the cathode, and in this case, the return pipe 203 must be made of metal having good electrical conductivity. At the same time, the bottom of the cup 30 is ensured to be in contact with the anode 33, and each guide mechanism 40 is provided with a fixedly arranged anode, and can be electrically connected with the anode 33 by using the rotary current collector 60 and the conductive plate 61 similar to those in the first embodiment. Anode 33 may be made of copper or other metal with good electrical conductivity.

The technical scheme of the rotary electropolishing apparatus disclosed in this embodiment is the same as that of the first embodiment, please refer to the first embodiment, and the description thereof is omitted.

Embodiment III:

this embodiment discloses a second modification of the rotary electropolishing apparatus of the present invention.

Referring to fig. 18, the rotary electropolishing apparatus according to the present embodiment differs from the rotary electropolishing apparatus according to the first and/or second embodiments in that in the present embodiment, the guide separation area is formed by a protrusion, and at least two or more electrolytic rods 54 are formed at the top of the protrusion in a longitudinally separated state from the cup body 30.

The guiding mechanism 40 is vertically disposed between the upper disc 51 and the lower disc 52, the guiding mechanism 40 is connected with the lower disc 52, at least one protruding portion is formed along the circumferential direction of the circular column 113 to form the guiding separation area, the electrolytic rod 54 is slidably connected with the guiding mechanism 40 through the sliding block 21 and vertically disposed downwards, at least a third guiding edge 116a for longitudinally separating the cup 30 from the electrolytic rod 54 and a fourth guiding edge 118a for longitudinally inserting are formed on the protruding portion, the electrolytic rod 54 is annular and vertically disposed below the upper disc 51, and coaxially disposed with the opening of the cup 30, and the opening of the cup 30 is upwards. The cup 30 is placed in the work positioning seat 20 in an opening-up manner in the posture shown in fig. 6 or 7.

The circular column 113 is vertically arranged on the inner annular wall 105, and drives the rolling mechanism 24 to do circular motion on an annular end surface formed at the top of the circular column 113 along with the rotation of the lower disc 52, and the electrolytic rod 54 increases the height of the electrolytic rod 54 along the third guiding edge 116a in a passive manner when transversely crossing the protruding part, so that the electrolytic rod 54 is vertically pulled out of the cup body 30; the electrolytic wand 54 passively lowers the height of the electrolytic wand 54 along the fourth leading edge 118a as it traverses the boss to longitudinally insert the electrolytic wand 54 into the cup 30.

When the work positioning seat 20 suspended by the ring-shaped evenly-spaced guide mechanism 40 moves circularly in the waste liquid tank 100 in the circular ring shape in fig. 4, and sequentially passes through the guide separation area, the vertical rail 401 does not move longitudinally in the vertical direction during the up-down movement of the work positioning seat 20 in the guide separation area, and the rolling mechanism 24 rolls on the circular ring-shaped rail 181 formed at the top of the circular column 113, the rolling mechanism 24 moves along the direction indicated by the arrow D along the straight sides 115 respectively, and when crossing the inflection point 1 transversely, the rolling mechanism 24 contacts the third guide side 116 a. Four electrolytic rods 54 suspended below the conductive plate and vertically arranged are moved upward in the longitudinal direction, and finally the electrolytic rods 54 are pulled out longitudinally from the openings of the cup body 30, so that the electrolytic rods 54 are separated longitudinally from the cup body 30. The scrolling mechanism 24 then continues to scroll up the third leading edge 116a and laterally across the inflection point 2a and into the top flat edge 117a. Meanwhile, a top flat side 117a higher than the flat side 115 is formed between the third guide side 116a and the fourth guide side 118a, and the conductive rod 54 rotates in a translational posture at the stage of the top flat side 117a. At this time, the electrolytic rod 54 is thoroughly longitudinally separated from the cup 30, and the longitudinal distance therebetween is maximized. The operator can take out the electropolished cup 30 from the workpiece positioning seat 20 to complete the blanking operation. Then, the operator loads the cup 30, which is not subjected to the electrolytic polishing, into the work piece positioning seat 20, which is also located on the top flat side 117a, forward to complete the loading operation of the cup 30. Then, with further rotation of the upper and lower disks 51, 52 in the direction of arrow D, the rolling mechanism 24 rolls downward across the inflection point 3a and into the fourth guide edge 118a in the direction of arrow D, and as the four electrolytic rods 54 integrally assembled in a group are also rotated synchronously under the drive of the upper disk 51, the rolling mechanism 24 gradually and correspondingly inserts the four electrolytic rods 54 longitudinally into the four cups 30 and starts electrolysis during the downward rolling of the fourth guide edge 118 a. Finally, after the rolling mechanism 24 has traversed the inflection point 4a laterally in the direction indicated by arrow D, the electrolytic rod 54 is inserted longitudinally to the bottom and continues to rotate in the direction indicated by arrow D, with the rolling mechanism 24 in contact with the flat side 119. The right side 139 of fig. 18 is joined end-to-end with the left side 115 and is rounded. In this embodiment, it is preferable that two workpiece positioning seats 20 are always held in the arc section corresponding to the top flat edge 117a, and of course, only one workpiece positioning seat 20 may be held.

The technical solutions of the same parts of the rotary electropolishing apparatus disclosed in this embodiment as those of the first and/or second embodiments are shown in the first and/or second embodiments, and are not described herein again.

Embodiment four:

this embodiment discloses a third modification of the rotary electropolishing apparatus of the present invention. Compared with the rotary electropolishing apparatus according to any one of the first to third embodiments, particularly compared with the rotary electropolishing apparatus according to the third embodiment, the rotary electropolishing apparatus according to the present embodiment is characterized in that in the present embodiment, the circular column 113 is vertically disposed on the inner annular wall 105, and at least one protruding portion is formed along the circumferential direction of the circular column 113 to form the guiding separation area, the protruding portion forms at least a third guiding edge 116a for longitudinally separating the cup 30 from the electrolytic rod 54 and a fourth guiding edge 118a for longitudinally inserting, the electrolytic rod 54 is annular and vertically disposed in the waste liquid tank 100, the workpiece positioning seat 20 is slidably connected with the guiding mechanism 40 through the sliding block 21, the workpiece positioning seat 20 is annularly disposed under the upper disc 51, and the cup 30 is embedded into the workpiece positioning seat 20 in a downward opening posture.

The guiding mechanism 40 is vertically disposed at the edge of the lower disc 52, and drives the rolling mechanism 24 to make a circular motion on the annular end surface formed at the top of the circular column 113 along with the rotation of the lower disc 52, and the workpiece positioning seat 20 passively increases the height of the workpiece positioning seat 20 along the third guiding edge 116a when transversely crossing the protruding portion, so as to separate the cup body 30 from the electrolytic rod 54; the workpiece fixture 20 passively lowers the height of the workpiece fixture 20 along the fourth leading edge 118a as it traverses the boss to longitudinally insert the electrolytic wand 54 into the cup 30.

The technical solutions of the same parts in any one or any combination of the first to third embodiments of the rotary electropolishing apparatus disclosed in this embodiment are shown in the first to third embodiments, and are not described herein.

Fifth embodiment:

Based on the foregoing first to fourth embodiments, the rotary electropolishing apparatus disclosed in this embodiment further deforms the protrusions or indentations forming the guide separation zones.

Referring to fig. 22, the protrusion is composed of a first guide edge 116b and a second guide edge 118b which are linear, or the notch is composed of a third guide edge 116d and a fourth guide edge 118d which are linear. Referring to fig. 23, the protrusion is composed of a first guide edge 116c and a second guide edge 118c, or the notch is composed of a third guide edge 116e and a fourth guide edge 118e, which are curved. Of course, the shapes of the first guide edge, the second guide edge, the third guide edge and the fourth guide edge may be changed reasonably, so long as the workpiece positioning seat or the electrolytic rod can be guided, and the vertical insertion of the electrolytic rod into the cup body and the vertical separation of the electrolytic rod from the cup body can be realized when the upper disc 51 and the lower disc 52 transversely cross the guiding separation area in the coaxial synchronous rotation process. The longitudinal insertion and the longitudinal separation of the electrolytic rod and the cup body are relative movement in the vertical direction.

The technical solutions of the same parts in any one or any combination of the first to fourth embodiments of the rotary electropolishing apparatus disclosed in this embodiment are shown in the first to fourth embodiments, and are not described herein.

The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. A rotary electropolishing apparatus comprising:

The driving mechanism is driven by the driving mechanism and performs coaxial synchronous rotation, an upper disc (51) and a lower disc (52) are arranged in parallel, an annular column (113) is annularly arranged outside the lower disc (52), at least one guiding separation area is formed at the top of the annular column (113), a plurality of guiding mechanisms (40) are vertically arranged between the upper disc (51) and the lower disc (52) and connected with the upper disc (51) or the lower disc (52), a plurality of workpiece positioning seats (20) and electrolytic bars (54) perform coaxial synchronous rotation, the workpiece positioning seats (20) accommodate a cup body (30),

One of the workpiece positioning seat (20) and the electrolytic rod (54) is in sliding connection with the guide mechanism (40), and the other one of the workpiece positioning seat (20) and the electrolytic rod (54) is connected with the upper disc (51) or the lower disc (52), the upper disc (51) and the lower disc (52) realize longitudinal separation between the electrolytic rod (54) and the inner cavity of the cup body (30) in the guide separation area in the coaxial synchronous rotation process, and the guide mechanism (40) comprises: the vertical track (401), with perpendicular track (401) sliding connection's sliding block (21), set up in rolling mechanism (24) of sliding block (21) below, work piece positioning seat (20) set up in the radial outside of sliding block (21), lower disc (52) and ring post (113) separate each other, rolling mechanism (24) are along the annular terminal surface that the top of ring post (113) formed do the circumference and roll to realize in proper order that longitudinal separation and longitudinal interpolation between electrolytic rod (54) and the inside cavity of cup (30) are gone through in the guide separation zone, the guide separation zone is formed by bellying or breach.

2. The rotary electropolishing apparatus of claim 1, wherein a plurality of guide mechanisms (40) are vertically arranged in an annular equidistant manner between the upper disc (51) and the lower disc (52), the slide blocks (21) of each guide mechanism (40) being disposed radially outward of the vertical track (401).

3. The rotary electropolishing apparatus of claim 1, wherein said guide separation zone forms at least two or more electrolytic bars (54) longitudinally separated from the cup (30).

4. The rotary electropolishing apparatus of claim 2, further comprising: the waste liquid tank (100) is annularly arranged at the outer side of the lower disc (52) and is annular, the waste liquid tank (100) is formed by encircling an inner annular wall (105), a bottom wall (104) and an outer annular wall (103), the workpiece positioning seat (20) is of a hollowed-out structure and accommodates at least one cup body (30) along the radial extending direction of the waste liquid tank (100), the cup body (30) is vertically arranged in the workpiece positioning seat (20), and an opening formed by the cup body (30) is vertically and coaxially arranged with the electrolytic rod (54); a rotary shaft (14) is arranged between the upper disc (51) and the lower disc (52) which are arranged in parallel, and the rotary shaft (14) is driven by a driving mechanism.

5. The rotary electropolishing apparatus of claim 4, further comprising: and a liquid return tank (109) arranged at the bottom of the waste liquid tank (100), wherein the liquid return tank (109) is communicated with the waste liquid tank (100).

6. The rotary electropolishing apparatus of claim 4, wherein said drive mechanism comprises: a swivel mechanism and a drive unit (12); the rotary mechanism comprises an inner ring (136), an outer ring (134) fixedly connected with the inner ring (136) and surrounding the inner ring (136), a middle ring (133) arranged between the inner ring (136) and the outer ring (134), a first bearing (137) arranged between the middle ring (133) and the inner ring (136), a gear arranged on the outer radial side of the middle ring (133), a reduction mechanism (127) meshed with the gear arranged on the outer radial side of the middle ring (133) arranged on the driving unit (12), a connecting plate (131) connected with the lower disc (52) arranged on the top of the middle ring (133), and a rotary shaft (14) connected with the circle center of the upper disc (51) and the lower disc (52) and forming an integrated structure with the upper disc (51) and the lower disc (52).

7. A rotary electropolishing apparatus according to claim 3, wherein at least two or more of said protrusions have their tops or notches at their bottoms formed in a longitudinally separated condition from the cup (30).

8. The rotary electropolishing apparatus of any of claims 2 to 7, wherein said circular column (113) is vertically disposed on an inner annular wall (105) and is provided with at least one notch portion along a circumferential direction of said circular column (113) to form said guide separation zone, a workpiece positioning seat (20) is slidably connected with said guide mechanism (40) through a sliding block (21), said notch portion forms at least a first guide edge for longitudinally separating a cup (30) from an electrolytic rod (54) and a second guide edge for longitudinally inserting, said electrolytic rod (54) is provided in an annular shape and is suspended below an upper disc (51) and is coaxially disposed with an opening of said cup (30), and an opening of said cup (30) is upward;

The guide mechanism (40) is vertically arranged at the edge of the lower disc (52) and drives the rolling mechanism (24) to do circular motion on the top of the inner annular wall (105) along with the rotation of the lower disc (52), and when the workpiece positioning seat (20) transversely spans the notch part, the height of the workpiece positioning seat (20) is lowered along the first guide edge in a passive mode so as to longitudinally separate the cup body (30) from the electrolytic rod (54); the workpiece positioning seat (20) passively increases the height of the workpiece positioning seat (20) along the second guide edge when transversely crossing the notch portion so as to longitudinally insert the cup body (30) into the electrolytic rod (54).

9. The rotary electropolishing apparatus of any of claims 2 to 7, wherein said circular column (113) is vertically disposed on an inner annular wall (105), and at least one notch portion is formed along a circumferential direction of said circular column (113) to form said guide separation area, said notch portion forming at least a first guide edge for longitudinally separating a cup (30) from an electrolytic rod (54) and a second guide edge for longitudinally inserting, said electrolytic rod (54) is annularly and vertically disposed in a waste liquid tank (100), said electrolytic rod (54) is slidably connected to said guide mechanism (40) by a slider (21), said workpiece positioning seat (20) is annularly suspended below an upper disc (51), said cup (30) is embedded in said workpiece positioning seat (20) in an open downward posture;

The guide mechanism (40) is vertically arranged at the edge of the lower disc (52) and drives the rolling mechanism (24) to do circular motion on the top of the inner annular wall (105) along with the rotation of the lower disc (52), and when the workpiece positioning seat (20) transversely spans the notch part, the height of the electrolytic rod (54) is lowered along the first guide edge in a passive mode so as to longitudinally separate the cup body (30) from the electrolytic rod (54); the workpiece positioning seat (20) passively increases the height of the electrolytic rod (54) along the second guide edge when transversely crossing the notch part so as to longitudinally insert the electrolytic rod (54) into the cup body (30).

10. The rotary electropolishing apparatus of any of claims 2 to 7, wherein a guide mechanism (40) is vertically disposed between the upper disc (51) and the lower disc (52), and wherein the guide mechanism (40) is connected to the lower disc (52) and is provided with at least one protrusion along the circumferential direction of the circular column (113) to form the guide separation zone, and wherein the electrolytic rod (54) is slidably connected to the guide mechanism (40) via a sliding block (21) and vertically disposed downward, and wherein the protrusion forms at least a third guide edge for longitudinally separating the cup (30) from the electrolytic rod (54) and a fourth guide edge for longitudinally inserting, and wherein the electrolytic rod (54) is disposed annularly and vertically below the upper disc (51) and coaxially disposed with the opening of the cup (30), and wherein the opening of the cup (30) is upward;

The circular column (113) is vertically arranged on the inner annular wall (105), and drives the rolling mechanism (24) to do circular motion along with the rotation of the lower disc (52) at the top of the inner annular wall (105), and when the circular column transversely spans the protruding part, the height of the electrolytic rod (54) is passively increased along the third guide edge, so that the electrolytic rod (54) is vertically pulled out of the cup body (30); the electrolytic rod (54) passively lowers the height of the electrolytic rod (54) along the fourth leading edge while traversing the boss to longitudinally insert the electrolytic rod (54) into the cup (30).

11. The rotary electropolishing apparatus of any of claims 2 to 7, wherein said circular column (113) is vertically disposed on an inner annular wall (105), and at least one protruding portion is provided along a circumferential direction of said circular column (113) to form said guide separation area, said protruding portion forming at least a third guide edge for longitudinally separating a cup body (30) from an electrolytic rod (54) and a fourth guide edge for longitudinally inserting, said electrolytic rod (54) is annularly and vertically disposed in a waste liquid tank (100), a work positioning seat (20) is slidably connected with said guide mechanism (40) through a slide block (21), said work positioning seat (20) is annularly provided under an upper disc (51), said cup body (30) is embedded in the work positioning seat (20) in an open downward posture;

the guide mechanism (40) is vertically arranged at the edge of the lower disc (52) and drives the rolling mechanism (24) to do circular motion on the top of the inner annular wall (105) along with the rotation of the lower disc (52), and when the workpiece positioning seat (20) transversely spans the protruding part, the height of the workpiece positioning seat (20) is passively increased along the third guide edge so as to longitudinally separate the cup body (30) from the electrolytic rod (54); the workpiece positioning seat (20) passively lowers the height of the workpiece positioning seat (20) along the fourth guide edge when transversely crossing the convex part so as to longitudinally insert the electrolytic rod (54) into the cup body (30).

12. The rotary electropolishing apparatus of claim 8, further comprising: a rotary current collector (60) coaxially arranged with the rotary shaft (14), and a plurality of conductive plates (61) radially connected to the rotary current collector (60), each conductive plate (61) being connected to a plurality of groups of electrolytic rods (54) arranged radially outward.

13. The rotary electropolishing apparatus of claim 1, further comprising: a housing (107), at least one exhaust gas suction port (175) for sucking exhaust gas is arranged at the top of the housing (107);

The shell (107) partly shields the driving mechanism, the upper disc (51), the lower disc (52), a plurality of workpiece positioning seats (20) which rotate coaxially and synchronously and the electrolytic rod (54).