Multi-stage filtering device for metal workpiece micro-arc oxidation production

Abstract

The utility model relates to the technical field of metal workpiece production, and discloses a multi-stage filter device for metal workpiece micro-arc oxidation production, which comprises an electrolytic tank, a connecting column is vertically arranged on the inner side of the electrolytic tank, and a plurality of filter screens are vertically arranged on the outer wall of the connecting column in an array manner. The upper end face of the uppermost filter screen is connected with a lifting assembly used for lifting the multiple filter screens, a plurality of guiding assemblies are arranged on the upper end face of the electrolytic tank in an annular array mode, when electrolyte needs to be filtered, the filter screens are lifted to the position above the electrolytic tank through the lifting assembly, and the electrolyte is filtered through the multiple stages of filter screens step by step. And impurities and particles in the electrolyte are removed, at the moment, the impurities are accumulated on the multiple filter screens, separation of the electrolyte and the impurities is completed, the filtered electrolyte is purer, improvement of the quality and efficiency of micro-arc oxidation treatment is facilitated, and the main function of the guide assembly is to ensure that the lifting assembly is kept stable in the lifting process and friction is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal workpiece production technical field, specifically, relate to a kind of multistage filter device of metal workpiece micro-arc oxidation production. BACKGROUND

[0002] Micro-arc oxidation is through the voltage of special micro-arc oxidation power supply, the metal of workpiece surface and electrolyte solution interact, form micro-arc discharge, under the action of high temperature, electric field and other factors, ceramic film is formed on the metal surface, to achieve the purpose of workpiece surface strengthening, continuous micro-arc oxidation refers to in the process of micro-arc oxidation, by continuously applying voltage and current, workpiece in electrolyte continuously micro-arc discharge, to form a layer of uniform, dense ceramic film on the metal surface, and in the process of micro-arc oxidation treatment, various impurities, such as metal oxide, release agent residue, electrolyte decomposition product, etc. are continuously generated in electrolyte. If these impurities are not removed in time, the performance and stability of electrolyte will be seriously affected.

[0003] The existing device has some disadvantages in use, for example: in the process of micro-arc oxidation treatment of metal workpiece, the quality and purity of electrolyte have a crucial influence on the treatment result, however, in the traditional electrolyte filtration technology, a single filter screen or a simple filter device is often used, which is difficult to effectively remove the small impurities and particulate matters in the electrolyte, resulting in that the filtered electrolyte still contains a certain amount of impurities, affecting the quality and efficiency of micro-arc oxidation treatment. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of multistage filter device of metal workpiece micro-arc oxidation production, solve the problem that in the traditional electrolyte filtration technology, a single filter screen or a simple filter device is often used, which is difficult to effectively remove the small impurities and particulate matters in the electrolyte.

[0005] The utility model provides the following technical scheme: a kind of multistage filter device of metal workpiece micro-arc oxidation production, including electrolytic cell, the connecting column is vertically arranged in electrolytic cell inner side, multiple filter screens are vertically arrayed on the outer wall of connecting column, the upper end surface of the filter screen located in the uppermost is connected with the lifting assembly for lifting multiple filter screens, the upper end surface of electrolytic cell annular array is provided with multiple guide assemblies.

[0006] As a preferred technical scheme of the above, the lifting assembly includes multiple lifting rings and horizontally symmetrical cylinders fixed on both sides of electrolytic cell, multiple lifting rings are annularly arrayed on the upper end surface of the filter screen located in the uppermost, the piston end of two cylinders is fixed with support block, counterweight ring is fixedly connected between two support blocks, multiple lifting ropes are annularly arrayed and fixed on the upper end surface of counterweight ring, the end portion of multiple lifting ropes away from counterweight ring is fixed with lifting hook, and multiple lifting hooks are connected with corresponding lifting rings.

[0007] As the above technical scheme is preferred, the guide assembly comprises mounting plates symmetrically fixed to the upper end surface of the electrolytic cell, a rotating shaft is rotatably connected between the two mounting plates, and a guide wheel for guiding the lifting rope is fixedly sleeved on the outer wall of the rotating shaft.

[0008] As the above technical scheme is preferred, a plurality of limiting sliding grooves are annularly arranged on the outer wall of the electrolytic cell, a plurality of limiting sliding blocks are annularly fixed on the inner side wall of the counterweight ring, and the plurality of limiting sliding blocks are all up and down slidingly arranged in the limiting sliding grooves.

[0009] As the above technical scheme is preferred, an external thread is arranged on the outer wall of the connecting column, an internal thread matched with the external thread of the connecting column is arranged on the inner side wall of the plurality of filter screens, the filter screens are threadedly connected with the connecting column, and the anti-disengagement block is fixedly connected to the top end of the connecting column.

[0010] As the above technical scheme is preferred, the mesh number of the plurality of filter screens is sequentially increased from top to bottom.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] In the utility model, when the electrolyte needs to be filtered, the filter screens are lifted above the electrolytic cell through the lifting assembly, the impurities and particulate matters in the electrolyte are removed through the step-by-step filtering of the multi-stage filter screens, the impurities are accumulated on the plurality of filter screens at this time, the separation of the electrolyte and the impurities is completed, the filtered electrolyte is more pure, and the quality and efficiency of the micro-arc oxidation treatment are improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole structure schematic view of a multi-stage filter device for micro-arc oxidation production of metal workpieces.

[0014] Figure 2 It is an enlarged structure schematic view of a guide assembly.

[0015] Figure 3 It is a connection structure schematic view of a filter screen and a connecting column.

[0016] Figure 4 It is a local structure schematic view of a lifting assembly.

[0017] In the drawings: 1, electrolytic cell; 11, connecting column; 111, anti-disengagement block; 12, filter screen; 2, lifting assembly; 21, lifting ring; 22, air cylinder; 23, supporting block; 24, counterweight ring; 25, lifting rope; 26, lifting hook; 3, guide assembly; 31, mounting plate; 32, rotating shaft; 33, guide wheel; 41, limiting sliding groove; 42, limiting sliding block. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Example

[0020] like Figures 1-4 As shown, this utility model provides a technical solution: a multi-stage filtration device for micro-arc oxidation of metal workpieces, including an electrolytic cell 1, a connecting column 11 vertically arranged inside the electrolytic cell 1, and multiple filter screens 12 vertically arrayed on the outer wall of the connecting column 11, with the mesh size of the multiple filter screens 12 increasing sequentially from top to bottom. The upper end face of the uppermost filter screen 12 is connected to a lifting component 2 for raising and lowering the multiple filter screens 12. Multiple guide components 3 are arranged in a ring array on the upper end face of the electrolytic cell 1. In specific use, the electrolytic cell 1 is filled with an appropriate amount of electrolyte for micro-arc oxidation treatment of metal workpieces, and the connecting column 11 serves as a filter screen. The supporting structure of the 12 has multiple filter screens 12 set on the outer wall of the connecting column 11 to form a multi-stage filtration. The lifting component 2 drives the filter screens 12 to rise and fall. When it is necessary to filter the electrolyte, the lifting component 2 lifts the filter screens 12 above the electrolytic cell 1. Through the step-by-step filtration of the multi-stage filter screens 12, impurities and particulate matter in the electrolyte are removed. At this time, the impurities accumulate on the multiple filter screens 12, completing the separation of electrolyte and impurities. The filtered electrolyte is purer, which helps to improve the quality and efficiency of micro-arc oxidation treatment. The main function of the guide component 3 is to ensure that the lifting component 2 remains stable and avoids friction during the lifting process.

[0021] As one implementation method in this embodiment, such as Figure 3 and Figure 4As shown, the lifting assembly 2 comprises a plurality of lifting rings 21 and a pair of air cylinders 22 fixed symmetrically on both sides of the electrolytic cell 1, the plurality of lifting rings 21 are fixed in an annular array on the upper end face of the uppermost filter screen 12, the piston end of the two air cylinders 22 is fixed with a support block 23, the two support blocks 23 are fixedly connected with a counterweight ring 24, the upper end face of the counterweight ring 24 is fixed in an annular array with a plurality of lifting ropes 25, the ends of the plurality of lifting ropes 25 away from the counterweight ring 24 are fixed with lifting hooks 26, the plurality of lifting hooks 26 are connected with the corresponding lifting rings 21, the guide assembly 3 comprises mounting plates 31 fixed symmetrically on the upper end face of the electrolytic cell 1, a rotating rod 32 is rotatably connected between the two mounting plates 31, a guide wheel 33 for guiding the lifting ropes 25 is fixedly sleeved on the outer wall of the rotating rod 32, a plurality of limiting sliding grooves 41 are formed in an annular array on the outer wall of the electrolytic cell 1, and a plurality of limiting sliding blocks 42 are fixed in an annular array on the inner side wall of the counterweight ring 24. The plurality of limiting sliding blocks 42 slide up and down in the limiting sliding grooves 41. Specifically, when the filter screen 12 needs to be lifted, the air cylinder 22 is started to make the piston end of the air cylinder 22 extend or retract, and the extension or retraction of the piston end drives the support block 23 and the counterweight ring 24 to lift, and when the counterweight ring 24 lifts, the filter screen 12 is lifted by the lifting ropes 25 and the lifting hooks 26. During the lifting process, the guide wheel 33 guides the lifting ropes 25 to ensure smooth operation of the lifting ropes 25 without causing large friction. At the same time, the limiting sliding blocks 42 slide up and down in the limiting sliding grooves 41 to limit the lifting range of the counterweight ring 24 and the filter screen 12, thereby improving the stability and accuracy of the lifting.

[0022] As an embodiment in the present embodiment, as shown in Figure 3 As shown, the outer wall of the connecting column 11 is provided with external threads, and the inner side wall of the plurality of filter screens 12 is provided with internal threads matched with the external threads of the connecting column 11. The filter screen 12 is threadedly connected with the connecting column 11. The top end of the connecting column 11 is fixedly connected with an anti-disengagement block 111. Specifically, in use, the internal threads of the filter screen 12 are aligned with the external threads of the connecting column 11, and the filter screen 12 is rotated to gradually rise along the threads of the connecting column 11 to a predetermined position. When the filter screen 12 needs to be cleaned, the operator only needs to simply rotate the filter screen 12 to disengage it from the connecting column 11. Due to the convenience of threaded connection, this process can usually be completed in a very short time. The disassembled filter screen 12 can be conveniently taken to the cleaning area for cleaning. Since the structure of the filter screen 12 is relatively simple and does not have complex connecting components, it is also very easy to clean.

[0023] Working principle: when using, the electrolytic cell 1 is filled with a proper amount of electrolyte, which is used for micro-arc oxidation treatment of metal workpieces, when the filter screen 12 needs to be lifted, the air cylinder 22 is started, the piston end of the air cylinder 22 is telescopic, the telescopic piston end drives the supporting block 23 and the counterweight ring 24 to lift, when the counterweight ring 24 lifts, the filter screen 12 is driven to lift through the lifting rope 25 and the lifting hook 26, through the step-by-step filtration of the multi-stage filter screen 12, the impurities and particulate matters in the electrolyte are removed, at this time, the impurities are accumulated on the multiple filter screens 12, the separation of the electrolyte and the impurities is completed, in the lifting process, the guide wheel 33 guides the lifting rope 25, ensures the smooth running of the lifting rope 25 and the lifting rope 25 will not be subjected to large friction.

[0024] The above examples are only used to illustrate the technical scheme of the utility model, and not to limit it.

Claims

1. A multistage filtering device for micro-arc oxidation of metal workpieces produced in an electrolytic cell (1), characterized in that it comprises: The electrolytic cell (1) is vertically provided with a connecting column (11) inside, a plurality of filter screens (12) are vertically arranged on the outer wall of the connecting column (11), the upper end surface of the uppermost filter screen (12) is connected with a lifting assembly (2) for lifting the plurality of filter screens (12), and a plurality of guide assemblies (3) are annularly arranged on the upper end surface of the electrolytic cell (1).

2. The multi-stage filtering device produced by micro-arc oxidation of a metal workpiece according to claim 1, characterized in that: The lifting assembly (2) comprises a plurality of lifting rings (21) and air cylinders (22) fixed transversely and symmetrically on both sides of the electrolytic cell (1), the plurality of lifting rings (21) are annularly arranged and fixed on the upper end surface of the uppermost filter screen (12), the piston ends of the two air cylinders (22) are fixed with support blocks (23), the two support blocks (23) are fixedly connected with a counterweight ring (24), the upper end surface of the counterweight ring (24) is annularly arranged and fixed with a plurality of lifting ropes (25), the ends of the plurality of lifting ropes (25) away from the counterweight ring (24) are fixed with lifting hooks (26), and the plurality of lifting hooks (26) are connected with corresponding lifting rings (21).

3. The multi-stage filtering device produced by micro-arc oxidation of a metal workpiece according to claim 1, characterized in that: The guide assembly (3) comprises mounting plates (31) fixed symmetrically on the upper end surface of the electrolytic cell (1), and a rotating rod (32) rotatably connected between the two mounting plates (31), and the outer wall of the rotating rod (32) is fixedly sleeved with a guide wheel (33) for guiding the lifting ropes (25).

4. The multi-stage filtering device produced by micro-arc oxidation of a metal workpiece according to claim 2, characterized in that: A plurality of limiting sliding grooves (41) are annularly arranged on the outer wall of the electrolytic cell (1), a plurality of limiting sliding blocks (42) are annularly arranged and fixed on the inner side wall of the counterweight ring (24), and the plurality of limiting sliding blocks (42) are all up and down sliding in the limiting sliding grooves (41).

5. The multi-stage filtering device produced by micro-arc oxidation of a metal workpiece according to claim 1, characterized in that: The outer wall of the connecting column (11) is provided with external threads, the inner side wall of the plurality of filter screens (12) is provided with internal threads matched with the external threads of the connecting column (11), the filter screens (12) are threadedly connected with the connecting column (11), and the top end of the connecting column (11) is fixedly connected with an anti-disengagement block (111).

6. The multi-stage filtering device produced by micro-arc oxidation of a metal workpiece according to claim 1, characterized in that: The mesh numbers of the plurality of filter screens (12) increase from top to bottom.

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