Electrolytic polishing device

Abstract

The utility model belongs to the technical field of electrolytic polishing equipment, and discloses an electrolytic polishing device. The electrolytic polishing device comprises a base, a bearing part, a moving part, an electrode and an electrolyte supply mechanism. The bearing part is arranged on the base, is used for bearing and fixing a workpiece, and is conductive; the electrode is arranged on the moving part, the moving part is arranged on the base in a sliding mode in the vertical direction, the moving part is provided with a working position where the electrode extends into the inner hole, and when the moving part is located at the working position, the electrode can be electrically connected with the bearing part to form a current loop. The electrolyte supply mechanism is configured to supply an electrolyte into the inner hole or discharge the electrolyte from the inner hole. In the electrolytic polishing process, the electrolyte is only supplied to the inner hole to be processed of the workpiece, electrolytic polishing can be only carried out on the inner hole, the processing time is shortened, and then the processing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolytic polishing equipment, in particular to an electrolytic polishing device. Background Art

[0002] Stainless steel electrolytic polishing uses the workpiece to be polished as the anode and the insoluble metal as the cathode. Both electrodes are immersed in the electrolytic cell at the same time. Direct current is passed through to produce selective anodic dissolution, and the surface of the workpiece is gradually flattened, thereby achieving the effect of increasing the surface brightness of the workpiece.

[0003] The existing electrolytic polishing method mainly includes the following steps: first connect the positive and negative poles of the power supply to the workpiece, then place the workpiece into the electrolytic tank, and then start the power supply. The workpiece and the electrolyte in the electrolytic tank undergo an electrochemical reaction to achieve electrolytic polishing. Finally, after the electrolysis is completed, the power supply is turned off and the workpiece is removed.

[0004] However, existing electrolytic polishing methods generally require processing all surfaces of the workpiece. That is, existing electrolytic polishing methods cannot process only the inner hole of the workpiece, and processing non-essential surfaces will greatly extend the processing time, thereby affecting processing efficiency.

[0005] Therefore, the above problems need to be solved urgently. Utility Model Content

[0006] The purpose of the utility model is to provide an electrolytic polishing device that can process only the inner hole of a workpiece, so as to shorten the processing time and thus improve the processing efficiency.

[0007] To achieve this purpose, the present invention adopts the following technical solutions:

[0008] An electrolytic polishing device for electrolytically polishing an inner hole of a workpiece, the electrolytic polishing device comprising:

[0009] base;

[0010] A carrier, disposed on the base, used to carry and fix the workpiece, and conductive;

[0011] A moving part and an electrode, wherein the electrode is disposed on the moving part, the moving part is slidably disposed on the base in a vertical direction, and has a working position for extending the electrode into the inner hole, and when the moving part is in the working position, the electrode can be electrically connected to the supporting part to form a current loop;

[0012] The electrolyte supply mechanism is configured to supply the electrolyte into the inner hole or discharge the electrolyte in the inner hole.

[0013] Preferably, the carrier includes a plurality of fixing stations for fixing the workpiece;

[0014] The number of the electrodes corresponds to the number of the fixed stations, and the plurality of electrodes are distributed on the moving part and correspond one-to-one to the plurality of fixed stations;

[0015] The plurality of electrodes are connected into one body via a connecting plate, and the connecting plate can be electrically connected to the supporting member when the moving member is located at the working position.

[0016] Preferably, the supporting member can block the lower end of the inner hole of the workpiece it supports, and the moving member can block the upper end of the inner hole when located in the working position.

[0017] Preferably, the supporting member includes a plurality of fixing columns vertically arranged on the base, each of the fixing columns can be adapted to be engaged with the lower end of the inner hole, and each of the fixing columns provides one of the fixing stations.

[0018] Preferably, the supporting member also includes a supporting plate slidingly arranged on the base along the vertical direction, the supporting plate is used to support a part of the workpiece, and an avoidance hole is provided on the supporting plate for avoiding the workpiece, so that the lower side of the workpiece can extend to the bottom of the supporting plate and be clamped with the fixed column. The electrolytic polishing device also includes an elastic telescopic member, and the two ends of the elastic telescopic member are respectively connected to the supporting plate and the base.

[0019] Preferably, the base, the bearing member and the fixed column are provided with liquid inlet channels that are connected in sequence, and the position of the moving member corresponding to the fixed column is provided with a liquid outlet channel, so that when the moving member blocks the upper end of the inner hole, the liquid outlet channel can be connected with the inner hole;

[0020] The outlet of the electrolyte supply mechanism is communicated with the inlet of the liquid inlet channel, and the inlet of the electrolyte supply mechanism is communicated with the outlet of the liquid outlet channel.

[0021] Preferably, the base is further provided with a liquid discharge channel connected to the liquid inlet channel.

[0022] Preferably, a plurality of guide pillars are vertically provided on the base, and the moving part is slidably engaged with the plurality of guide pillars.

[0023] Preferably, the tops of the plurality of guide pillars are connected into one piece via a connector.

[0024] Preferably, the connecting member is provided with a driving member for driving the moving member to slide.

[0025] Beneficial effects of the utility model:

[0026] During the electrolytic polishing process, the utility model supplies the electrolyte only to the inner hole of the workpiece to be processed, so that only the inner hole can be electrolytically polished, which helps to shorten the processing time and thus improve the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the electrolytic polishing device provided by the utility model;

[0028] Figure 2 It is a side view of the electrolytic polishing device provided by the utility model for removing moving parts;

[0029] Figure 3 This is a schematic structural diagram of the moving parts, electrodes and connecting parts provided by the utility model;

[0030] Figure 4 It is a structural schematic diagram of the base and the bearing member provided by the utility model.

[0031] In the picture:

[0032] 500. Workpiece; 1. Base; 2. Carrying member; 21. Fixed column; 22. Carrying plate; 23. Elastic and telescopic member; 3. Moving member; 4. Electrode; 41. Connecting part; 5. Guide column; 6. Connecting member; 7. Driving member; 10. Liquid inlet channel; 20. Liquid outlet channel; 30. Liquid discharge channel. DETAILED DESCRIPTION

[0033] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the foregoing drawings.

[0034] In this application, the terms "comprises," "includes," "has," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0035] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, a centrifugal vortex magnetic pump and / or a centrifugal vortex magnetic pump can represent three situations: the existence of a centrifugal vortex magnetic pump alone, the existence of a centrifugal vortex magnetic pump and a centrifugal vortex magnetic pump at the same time, and the existence of a centrifugal vortex magnetic pump alone. In addition, the character " / " in this application generally indicates that the related objects are in an "and / or" relationship.

[0036] In this application, the terms "connect," "combine," "couple," and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without an intermediary, and an indirect connection refers to two parts or components being connected to at least one intermediary, with the two parts or components being connected via the intermediary. Furthermore, "connect" and "couple" are not limited to physical or mechanical connections or couplings and may include electrical connections or couplings.

[0037] In this application, it will be understood by those skilled in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerance caused by manufacturing, assembly, use, etc. associated with a specific value. Such terms should also be considered to disclose a range defined by the absolute values of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values that do not use relative terms should also be disclosed as specific values with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0038] In this application, it will be understood by those skilled in the art that the function performed by an assembly can be performed by one assembly, multiple assemblies, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one assembly, or a combination of multiple parts.

[0039] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to the other element "upper" or "lower", but also be indirectly connected to the other element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, below can include directly below, lower left, lower right, lower front and lower back, etc.

[0040] See also Figures 1 to 4 This embodiment provides an electrolytic polishing device for electrolytically polishing the inner hole of a workpiece 500. The electrolytic polishing device includes a base 1, a carrier 2, a moving part 3, an electrode 4, and an electrolyte supply mechanism.

[0041] Specifically, a carrier 2 is disposed on a base 1, and is used to support and secure a workpiece 500. The carrier 2 is electrically conductive. An electrode 4 is disposed on a movable member 3, which slides vertically on the base 1 and has a working position where the electrode 4 extends into the inner hole. When the movable member 3 is in the working position, the electrode 4 is electrically connected to the carrier 2 to form a current loop. An electrolyte supply mechanism is configured to supply electrolyte into the inner hole or to discharge electrolyte from the inner hole.

[0042] In actual application, the workpiece 500 is first placed on the carrier 2, and then the movable part 3 is moved down to the working position, and the electrode 4 is extended into the inner hole. At the same time, the electrode 4 is electrically connected to the carrier 2 to form a current loop, and then the electrolyte supply mechanism supplies the electrolyte to the inner hole, and then the power is started, and the electrolyte undergoes an electrochemical reaction in the inner hole until the electrolytic polishing is completed and the power is turned off. The electrolyte in the inner hole is then discharged by the electrolyte supply mechanism, and then the movable part 3 is reset, and finally the workpiece 500 is removed.

[0043] It is understood that during the electrolytic polishing process, the electrolyte is supplied only to the inner hole of the workpiece 500 to be processed, which can achieve electrolytic polishing of only the inner hole, thereby helping to shorten the processing time and thus improve the processing efficiency. It should be noted that the specific structure and working principle of the electrolyte supply mechanism are all existing technologies and are not described in detail. It should also be noted that in the field of electrolytic polishing, it is generally known that the current circuit mentioned above refers to providing the necessary working conditions for the workpiece 500 and will not be described in detail.

[0044] Generally speaking, in the prior art, workpieces 500 are usually mass-produced using automated production lines, which have a high production speed. Therefore, in order to make the processing efficiency of the electrolytic polishing device match the speed of the automated production line in producing workpieces 500. In this embodiment, the carrier 2 includes a plurality of fixed stations for fixing the workpieces 500. The number of electrodes 4 corresponds to the number of fixed stations, and the plurality of electrodes 4 are distributed on the moving part 3 and correspond one-to-one to the plurality of fixed stations. The plurality of electrodes 4 are connected together by a connecting plate, and the connecting plate can be electrically connected to the carrier 2 when the moving part 3 is in the working position. Specifically, the connecting plate has a connecting portion 41 extending to the lower side of the moving part 3, so as to contact the carrier 2 through the connecting portion 41, and electrically connect the plurality of electrodes 4 to the carrier 2. With such a configuration, the inner holes of multiple workpieces 500 can be electrolytically polished at the same time, that is, the workpieces 500 can be electrolytically polished in batches, thereby helping to further improve the efficiency of electrolytic polishing.

[0045] It is worth noting that when electrolytically polishing a workpiece 500 having a through-hole, the carrier 2 can block the lower end of the inner hole of the supported workpiece 500, while the movable member 3 can block the upper end of the inner hole when in the working position. This arrangement allows the electrolyte to be temporarily stored in the inner hole to achieve electrolytic polishing.

[0046] For example, the tubular workpiece 500 generally has a through-hole. Correspondingly, the carrier 2 includes a plurality of fixing columns 21 vertically arranged on the base 1. Each fixing column 21 can be adapted to engage with the lower end of the inner hole, and each fixing column 21 provides a fixed station. It is understood that by engaging the fixing column 21 with the lower end of the inner hole, the workpiece 500 can be fixed, which is simple in structure and easy to operate. It is also understood that by engaging the fixing column 21 with the lower end of the inner hole, the lower end of the inner hole can be blocked, which is simple in structure and easy to operate.

[0047] In order to further improve the convenience of loading and unloading the workpiece 500, the carrier 2 also includes a carrier plate 22 that is slidably arranged on the base 1 in the vertical direction. The carrier plate 22 is used to support a portion of the workpiece 500. The carrier plate 22 is provided with an avoidance hole for avoiding the workpiece 500, so that the lower side of the workpiece 500 can extend to the bottom of the carrier plate 22 and engage with the fixed column 21. The electrolytic polishing device also includes an elastic telescopic member 23, the two ends of which are respectively connected to the carrier plate 22 and the base 1. In this way, the moving member 3 can move downward to push the workpiece 500, so that the fixed column 21 extends into the inner hole, thereby fixing the workpiece 500. At the same time, the carrier plate 22 will compress the elastic telescopic member. Conversely, when the moving member 3 moves upward to no longer abut the workpiece 500, the elastic telescopic member 23 will release the elastic force to push the carrier plate 22 upward, and the carrier plate 22 can bring the workpiece 500 to gradually disengage from the fixed column 21. It should be noted that, in this embodiment, the elastic telescopic member 23 is selected as a telescopic spring, which will not be described in detail.

[0048] To ensure the effect of electrolytic polishing, the base 1, the supporting member 2 and the fixed column 21 are provided with a liquid inlet channel 10 that is connected in sequence. The position of the moving member 3 corresponding to the fixed column 21 is provided with a liquid outlet channel 20, so that when the moving member 3 blocks the upper end of the inner hole, the liquid outlet channel 20 can be connected to the inner hole. The outlet of the electrolyte supply mechanism is connected to the inlet of the liquid inlet channel 10, and the inlet of the electrolyte supply mechanism is connected to the outlet of the liquid outlet channel 20. This arrangement can realize the supply of electrolyte from bottom to top, thereby ensuring that the electrolyte is accurately supplied to the inner hole of the workpiece 500. Compared with supplying electrolyte from top to bottom, it is easier to judge whether the electrolyte is supplied in place.

[0049] It is understood that the electrolyte needs to be replaced regularly. To this end, the base 1 is further provided with a drain channel 30 connected to the liquid inlet channel 10. By opening the outlet of the drain channel 30, the electrolyte in the liquid inlet channel 10 can be drained, facilitating operation. Of course, the outlet of the drain channel 30 is normally closed and will not be described in detail.

[0050] To enhance the smooth sliding motion of the moving member 3, a plurality of guide posts 5 are vertically disposed on the base 1. The moving member 3 slidably engages with the guide posts 5. In this embodiment, four guide posts 5 are provided, one at each of the four corners of the base 1. Furthermore, in this embodiment, the aforementioned support plate 22 also slidably engages with the four guide posts 5, guiding its sliding motion.

[0051] Furthermore, the tops of the multiple guide pillars 5 are connected together by a connector 6, which helps to improve the structural stability of the electropolishing device. In addition, a driving member 7 for driving the sliding movement of the moving member 3 is provided on the connector 6. Such a configuration makes the structure of the electropolishing device more compact. It should be noted that the driving member 7 can be selected as any linear drive structure in the prior art, such as any one of a cylinder, an electric cylinder, a linear module, etc., and no specific requirements or restrictions are made on this. In this embodiment, the driving member 7 is a cylinder, and the piston rod of the cylinder is arranged downward and extends to the lower end of the connector 6 to be connected to the moving member 3.

[0052] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An electrolytic polishing device for electrolytic polishing an inner hole of a workpiece (500), characterized in that: The electrolytic polishing device comprises: Base (1); A carrier (2) is arranged on the base (1), the carrier (2) is used to carry and fix the workpiece (500), and the carrier (2) is conductive; A moving part (3) and an electrode (4), wherein the electrode (4) is arranged on the moving part (3), the moving part (3) is slidably arranged on the base (1) in a vertical direction, and has a working position for extending the electrode (4) into the inner hole, and when the moving part (3) is in the working position, the electrode (4) can be electrically connected to the supporting part (2) to form a current loop; The electrolyte supply mechanism is configured to supply the electrolyte into the inner hole or discharge the electrolyte in the inner hole.

2. An electrolytic polishing device according to claim 1, characterized in that: The carrier (2) comprises a plurality of fixing stations for fixing the workpiece (500); The number of the electrodes (4) corresponds to the number of the fixed workstations, and the plurality of electrodes (4) are distributed on the moving part (3) and correspond one-to-one to the plurality of fixed workstations; The plurality of electrodes (4) are connected into one body via a connecting plate, and the connecting plate can be electrically connected to the supporting member (2) when the moving member (3) is located in the working position.

3. An electrolytic polishing device according to claim 2, characterized in that: The supporting member (2) can block the lower end of the inner hole of the workpiece (500) it supports, and the moving member (3) can block the upper end of the inner hole when it is located in the working position.

4. An electrolytic polishing device according to claim 3, characterized in that: The carrier (2) includes a plurality of fixing columns (21) vertically arranged on the base (1), each of the fixing columns (21) can be adapted to be snap-fitted with the lower end of the inner hole, and each of the fixing columns (21) provides one of the fixing stations.

5. The electrolytic polishing device according to claim 4, characterized in that: The supporting member (2) also includes a supporting plate (22) slidingly arranged on the base (1) in a vertical direction, and the supporting plate (22) is used to support a part of the workpiece (500). The supporting plate (22) is provided with an avoidance hole for avoiding the workpiece (500), so that the lower side of the workpiece (500) can extend to the bottom of the supporting plate (22) and be clamped with the fixed column (21). The electrolytic polishing device also includes an elastic telescopic member (23), and the two ends of the elastic telescopic member (23) are respectively connected to the supporting plate (22) and the base (1).

6. The electrolytic polishing device according to claim 5, characterized in that: The base (1), the bearing member (2) and the fixed column (21) are provided with liquid inlet channels (10) that are connected in sequence, and the position of the moving member (3) corresponding to the fixed column (21) is provided with a liquid outlet channel (20), so that when the moving member (3) blocks the upper end of the inner hole, the liquid outlet channel (20) can be connected with the inner hole; The outlet of the electrolyte supply mechanism is communicated with the inlet of the liquid inlet channel (10), and the inlet of the electrolyte supply mechanism is communicated with the outlet of the liquid outlet channel (20).

7. An electrolytic polishing device according to claim 6, characterized in that: The base (1) is also provided with a liquid discharge channel (30) communicating with the liquid inlet channel (10).

8. The electrolytic polishing device according to claim 1, characterized in that: A plurality of guide pillars (5) are vertically arranged on the base (1), and the moving part (3) is slidably engaged with the plurality of guide pillars (5).

9. The electrolytic polishing device according to claim 8, characterized in that: The tops of the plurality of guide pillars (5) are connected into one piece via a connecting piece (6).

10. An electrolytic polishing device according to claim 9, characterized in that: The connecting member (6) is provided with a driving member (7) for driving the moving member (3) to slide.

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