An electrolyte circulation system for metal electrolytic cutting

Abstract

This utility model relates to the field of electrochemical machining technology and discloses an electrolyte circulation system for metal electrolytic cutting, including: a workbench, an adjustment group, a purification group, a filtration group, and circulation pipelines. The circulation pipelines include a supply pipe, a return pipe, a collection pipe, and a diversion unit. The diversion unit is used to discharge the electrolyte filtered at the filtration group to the purification group and the adjustment group respectively. This utility model realizes the diversion supply of electrolyte. A portion of the electrolyte is supplied to the adjustment group for direct circulation; the other portion of the electrolyte enters the purification group for further purification and is then supplied to the adjustment group for circulation. While ensuring that the overall metal ion content of the electrolyte in the adjustment group does not exceed the standard, it effectively reduces the volume of the purification group and the production cost. The operator determines the amount of electrolyte flowing into the purification group for purification based on the metal ion concentration of the electrolyte in the adjustment group, thereby accurately controlling the metal ion concentration of the electrolyte to meet normal processing requirements.

Description

Technical Field

[0001] This utility model relates to the field of electrochemical processing technology, specifically, to an electrolyte circulation system for metal electrolytic cutting. Background Technology

[0002] Electrochemical machining (ECM) is a processing method that removes metallic materials through electrochemical reactions. Its basic principle is based on electrolysis, where an electric current in an electrolyte causes a redox reaction on the workpiece surface, thereby removing the metal. During ECM, the workpiece and electrodes are connected by an electrolyte; as the current flows, the metal surface is electrolyzed into ions and dissolved, forming tiny metal particles, thus achieving material removal.

[0003] In existing processing technologies, electrolytes are typically recycled. However, recycling requires filtering, purifying, and refining the recovered electrolyte. The purification process primarily removes metal ions dissolved in the electrolyte. Excessive metal ion concentration in the electrolyte can lead to uneven deposition, corrosion, and reduced processing efficiency. However, excessive purification does not significantly improve processing quality; instead, it increases the size of purification equipment and raises purification costs. Therefore, it is sufficient to control the metal ion concentration in the electrolyte within a certain range to ensure processing quality. Utility Model Content

[0004] The purpose of this invention is to provide an electrolyte circulation system for metal electrolytic cutting, which solves the problem in the prior art that the electrolyte used for circulation is usually purified after filtration, and the excessively high filtration efficiency leads to redundancy, resulting in an increase in the size of the purification equipment and a significant increase in purification costs.

[0005] This utility model is achieved through the following technical solution: an electrolyte circulation system for metal electrolytic cutting, comprising: The workbench includes an electrolytic cell and a processing electrode assembly. The processing electrode assembly is used for electrochemical processing, and the electrolytic cell is used to hold the electrolyte after use. The regulating group is used to store electrolyte and regulate electrolyte concentration; The purification unit is used to purify the used electrolyte. The filter assembly is used to filter the used electrolyte. A circulation pipeline is used for circulating the electrolyte. The circulation pipeline includes a supply pipe, a return pipe, a collection pipe, and a diversion unit. The supply pipe is connected to the output end of the regulating group and the input end of the processing electrode group, respectively. The return pipe is connected to the input end of the filtration group and the output end of the electrolytic cell, respectively. The collection pipe is connected to the output end of the purification group and the input end of the regulating group, respectively. The diversion unit is used to discharge the electrolyte filtered at the filtration group to the purification group and the regulating group, respectively.

[0006] To better realize this utility model, the diversion unit further includes a connecting pipe, a first branch pipe, a diversion valve, and a second branch pipe. The diversion valve is connected to the connecting pipe, the first branch pipe, and the second branch pipe respectively. The connecting pipe is connected to the output end of the filter group, the second branch pipe is connected to the input end of the purification group, and the first branch pipe is connected to the collection pipe or the input end of the regulating group.

[0007] To better realize this utility model, the diversion valve further includes a valve body, a valve column, and a knob. The knob is mounted on the valve column and is rotatably connected to the valve body. The valve body is provided with a first flow guide port, a second flow guide port, and a third flow guide port. The connecting pipe is connected to the first flow guide port, the second branch pipe is connected to the second flow guide port, and the first branch pipe is connected to the third flow guide port. The valve column is provided with a first flow diversion port, a second flow diversion port, and a third flow diversion port. The first flow diversion port is connected to the first flow guide port, the second flow diversion port is connected to the second flow guide port, and the third flow diversion port is connected to the third flow guide port.

[0008] To better realize this utility model, the first guide port, the second guide port, the third guide port, the second diversion port, and the third diversion port all have circular cross-sections with the same cross-sectional area; the first diversion port has a straight groove shape, and the width of the groove is the same as the circular diameter of the cross-sections of the first guide port, the second guide port, the third guide port, the second diversion port, and the third diversion port.

[0009] To better realize this utility model, it further includes a cooling group for cooling the electrolyte after use; the return pipe is connected to the input end of the cooling group, and the input end of the cooling group is connected to the input end of the filter group.

[0010] To better realize this utility model, it further includes a shower assembly and a shower pipe, wherein the input end of the shower assembly is connected to the shower pipe, and the other end of the shower pipe is connected to the adjustment assembly.

[0011] Compared with the prior art, this utility model has the following advantages and beneficial effects: (1) The present invention designs a diversion unit, which realizes the diversion supply of electrolyte at the filter group. A portion of the electrolyte is supplied to the regulating group for direct recycling; while the other portion of the electrolyte enters the purification group for further purification and is then supplied to the regulating group for recycling. Under the premise of ensuring that the metal ion content in the electrolyte in the regulating group does not exceed the standard, the volume of the purification group and the production cost are effectively reduced. (2) By setting up a diversion valve, the flow meters on the first and second branch pipes can be observed when the knob is manually rotated, so as to accurately control the amount of electrolyte flowing to the purification group for purification. The staff determines the amount of electrolyte flowing into the purification group for purification based on the metal ion concentration of the electrolyte in the adjustment group, so as to accurately control the metal ion concentration of the electrolyte to meet the normal processing requirements. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 .

[0013] Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 .

[0014] Figure 3 This is an exploded view of the overall structure of this utility model.

[0015] Figure 4 This is a schematic diagram of the shunt unit structure.

[0016] Figure 5 Cross-sectional view of the diversion valve structure Figure 1 .

[0017] Figure 6 Cross-sectional view of the diversion valve structure Figure 2 .

[0018] Figure 7 Schematic diagram of valve column structure Figure 1 .

[0019] Figure 8 Schematic diagram of valve column structure Figure 2 .

[0020] Figure 9 This is a schematic diagram of the electrolyte flow path.

[0021] Wherein: 10-Electrolytic cell; 20-Processing electrode group; 30-Adjustment group; 40-Purification group; 50-Filtration group; 60-Cooling group; 70-Rinse group; 80-Circulation pipeline; 801-Supply pipe; 802-Return pipe; 803-Connecting pipe; 804-First branch pipe; 805-Diverter valve; 8051-Valve housing; a-First guide port; b-Second guide port; c-Third guide port; 8052-Valve column; A-First diverter port; B-Second diverter port; C-Third diverter port; 8053-Knob; 806-Second branch pipe; 807-Collection pipe; 808-Rinse pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1:

[0025] This embodiment provides an electrolyte circulation system for metal electrolytic cutting, specifically as follows: Figures 1-4 As shown, it includes: The workbench includes an electrolytic cell 10 and a processing electrode assembly 20. The processing electrode assembly 20 is used for electrochemical processing, and the electrolytic cell 10 is used to hold the electrolyte after use. Adjustment group 30 is used to store electrolyte and adjust electrolyte concentration; Purification unit 40 is used to purify the used electrolyte; Filter assembly 50 is used to filter the used electrolyte; A circulation pipeline 80 is used for circulating electrolyte. The circulation pipeline 80 includes a supply pipe 801, a return pipe 802, a collection pipe 807, and a diversion unit. The supply pipe 801 is connected to the output end of the regulating group 30 and the input end of the processing electrode group 20, respectively. The return pipe 802 is connected to the input end of the filtration group 50 and the output end of the electrolytic cell 10, respectively. The collection pipe 807 is connected to the output end of the purification group 40 and the input end of the regulating group 30, respectively. The diversion unit is used to discharge the electrolyte filtered by the filtration group 50 to the purification group 40 and the regulating group 30, respectively.

[0026] During electrochemical machining, the workpiece is placed in the machining electrode assembly 20. Then, the pump on the supply pipe 801 is activated, pumping the electrolyte from the regulating assembly 30 to the machining electrode assembly 20. Power is then supplied to the machining electrode assembly 20 to process the workpiece. Simultaneously, the used electrolyte at the machining electrode assembly 20 is collected by the electrolytic cell 10. At this point, the pump on the return pipe 802 is activated, pumping the collected electrolyte to the filter assembly 50. The electrolyte undergoes multi-stage filtration in the filter assembly 50, removing insoluble, larger-diameter impurities (metal fragments, etc.). The electrolyte is separated (by removing impurities) and then enters the diversion unit. The diversion unit supplies a portion of the electrolyte directly to the regulating group 30 and another portion to the purification group 40. In the purification group 40, the electrolyte is purified to separate insoluble small-particle impurities and soluble target metal ions. Finally, it is also returned to the regulating group 30. After a period of use, the staff will check the electrolyte concentration indicators (acids, salts, additives, etc.) stored in the regulating group 30 and concentrate or dilute the electrolyte according to the actual concentration to keep the electrolyte concentration within a suitable range.

[0027] By designing a diversion unit, the electrolyte supply to the 50 filtration units is diverted. A portion of the electrolyte is supplied to the regulating group 30 for direct recycling; the other portion enters the purification group 40 for further purification before being supplied back to the regulating group 30 for recycling. The rationale behind this design is that electrolyte purification during recycling does not require the complete removal of all metal ions, but rather the control of metal ion concentration within a suitable range to ensure the efficiency and quality of electrochemical processing. In other words, as long as the metal ion content in the electrolyte is within an acceptable range, the electrolyte can continue to be recycled without affecting processing quality. As is well known, if the purification unit 40 were to purify all the electrolytes, the volume and overall cost of the purification unit 40 would increase significantly, and the high filtration efficiency would be redundant, resulting in a low overall cost-effectiveness. However, by setting up a diversion unit, the purification unit 40 only needs to purify a portion of the electrolytes. Under the premise of ensuring that the metal ion content in the overall electrolyte of the regulating unit 30 does not exceed the standard, the volume and production cost of the purification unit 40 are effectively reduced.

[0028] Example 2:

[0029] This embodiment further expands the current splitter unit based on the above embodiments, specifically as follows: Figure 4 As shown, the diversion unit includes a connecting pipe 803, a first branch pipe 804, a diversion valve 805, and a second branch pipe 806. The diversion valve 805 is connected to the connecting pipe 803, the first branch pipe 804, and the second branch pipe 806 respectively. The connecting pipe 803 is connected to the output end of the filter group 50, the second branch pipe 806 is connected to the input end of the purification group 40, and the first branch pipe 804 is connected to the collection pipe 807 or the input end of the regulating group 30.

[0030] The electrolyte filtered at filter group 50 enters the connecting pipe 803, which discharges the electrolyte to the diversion valve 805. The diversion valve 805 divides the electrolyte into two parts: one part flows into the purification group 40 through the second branch pipe 806, and after being purified by the purification group 40, it flows into the regulating group 30 through the collection pipe 807; the other part flows directly into the regulating group 30 through the first branch pipe 804. The diversion valve 805 is used to divert the electrolyte.

[0031] Furthermore, specifically as follows Figure 5-8 As shown, the diversion valve 805 includes a valve housing 8051, a valve stem 8052, and a knob 8053. The knob 8053 is mounted on the valve stem 8052 and is rotatably connected to the valve housing 8051. The valve housing 8051 is provided with a first guide port a, a second guide port b, and a third guide port c. The connecting pipe 803 is connected to the first guide port a, the second branch pipe 806 is connected to the second guide port b, and the first branch pipe 804 is connected to the third guide port c. The valve stem 8052 is provided with a first diversion port A, a second diversion port B, and a third diversion port C. The first diversion port A is connected to the first guide port a, the second diversion port B is connected to the second guide port b, and the third diversion port C is connected to the third guide port c.

[0032] Furthermore, the cross-sections of the first guide port a, the second guide port b, the third guide port c, the second diversion port B, and the third diversion port C are all circular and have the same cross-sectional area; the cross-section of the first diversion port A is a straight groove, and the width of the groove is the same as the circular diameter of the cross-sections of the first guide port a, the second guide port b, the third guide port c, the second diversion port B, and the third diversion port C. This arrangement ensures that when the valve column 8052 rotates, the first diversion port A can always receive all the electrolyte at the first diversion port A.

[0033] by Figure 5For example: When the electrolyte flows from the connecting pipe 803 to the first guide port a, the electrolyte flows from the first guide port a to the first branch port A. At this time, because the inner wall of the valve housing 8051 completely blocks the second branch port B, and the third guide port c completely overlaps with the third branch port C, all the electrolyte flows from the first branch port A to the third branch port C, and then flows through the third guide port c back to the first branch pipe 804 and returns to the regulating group 30. In this state, no electrolyte enters the purification group 40; at this time, clockwise... Turning knob 8053 causes valve 8052 to rotate synchronously. During this process, the electrolyte at the first guide port a continues to flow normally into the first branch port A. However, the overlap between the third guide port c and the third branch port C begins to decrease, while the second guide port b and the second branch port B gradually begin to overlap. That is, some electrolyte begins to flow from the second branch port B through the second guide port b to the purification group 40, while the electrolyte flow rate at the third guide port c decreases. This continues until valve 8052 is rotated to... Figure 6 In this state, the first guide port a normally supplies flow to the first branch port A, while the third branch port C is completely blocked by the inner wall of the valve housing 8051. At this time, the third guide port c and the third branch port C do not overlap at all, while the second guide port b and the second branch port B completely overlap. At this time, all the electrolyte at the first branch port A flows to the purification group 40 for purification through the second guide port b. When manually rotating the knob 8053, observe the flow meters on the first branch pipe 804 and the second branch pipe 806 to accurately control the amount of electrolyte flowing to the purification group 40 for purification. The operator determines the amount of electrolyte flowing into the purification group 40 for purification based on the metal ion concentration of the electrolyte in the adjustment group 30, thereby accurately controlling the metal ion concentration of the electrolyte to meet normal processing requirements.

[0034] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0035] Example 3:

[0036] This embodiment further extends the above embodiment, specifically as follows: Figure 1 , Figure 2 , Figure 9 As shown, it also includes a cooling assembly 60 for cooling the used electrolyte; the return pipe 802 is connected to the input terminal of the cooling assembly 60, and the input terminal of the cooling assembly 60 is connected to the input terminal of the filter assembly 50. Cooling the electrolyte prevents its temperature from damaging subsequent components.

[0037] Furthermore, it also includes a rinsing assembly 70 and a rinsing pipe 808. The input end of the rinsing assembly 70 is connected to the rinsing pipe 808, and the other end of the rinsing pipe 808 is connected to the regulating assembly 30. After the workpiece is processed, the pump on the rinsing pipe 808 pumps the electrolyte in the regulating assembly 30 and supplies it to the rinsing assembly 70. The rinsing assembly 70 will rinse the processing electrode assembly 20, washing away metal debris and metal ions, ensuring the cleanliness of the working surface of the processing electrode assembly 20, and preparing it for the processing of the next workpiece.

[0038] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. An electrolyte circulation system for metal electrolytic cutting, characterized in that, include: The workbench includes an electrolytic cell (10) and a processing electrode assembly (20). The processing electrode assembly (20) is used for electrochemical processing, and the electrolytic cell (10) is used to hold the electrolyte after use. The regulating group (30) is used to store electrolyte and regulate electrolyte concentration; Purification unit (40) is used to purify the used electrolyte; Filter assembly (50) is used to filter the used electrolyte; A circulation pipeline (80) is used for circulating electrolyte. The circulation pipeline (80) includes a supply pipe (801), a return pipe (802), a collection pipe (807), and a diversion unit. The supply pipe (801) is connected to the output end of the regulating group (30) and the input end of the processing electrode group (20). The return pipe (802) is connected to the input end of the filtration group (50) and the output end of the electrolytic cell (10). The collection pipe (807) is connected to the output end of the purification group (40) and the input end of the regulating group (30). The diversion unit is used to discharge the electrolyte filtered at the filtration group (50) to the purification group (40) and the regulating group (30), respectively.

2. The electrolyte circulation system for metal electrolytic cutting according to claim 1, characterized in that: The diversion unit includes a connecting pipe (803), a first branch pipe (804), a diversion valve (805), and a second branch pipe (806). The diversion valve (805) is connected to the connecting pipe (803), the first branch pipe (804), and the second branch pipe (806) respectively. The connecting pipe (803) is connected to the output end of the filter group (50), the second branch pipe (806) is connected to the input end of the purification group (40), and the first branch pipe (804) is connected to the collection pipe (807) or the input end of the regulating group (30).

3. The electrolyte circulation system for metal electrolytic cutting according to claim 2, characterized in that: The diverter valve (805) includes a valve housing (8051), a valve stem (8052), and a knob (8053). The knob (8053) is mounted on the valve stem (8052) and is rotatably connected to the valve housing (8051). The valve housing (8051) is provided with a first flow guide port (a), a second flow guide port (b), and a third flow guide port (c). The connecting pipe (803) is connected to the first flow guide port (a). The second branch pipe (806) is connected to the second guide port (b), and the first branch pipe (804) is connected to the third guide port (c). The valve column (8052) is provided with a first branch port (A), a second branch port (B), and a third branch port (C). The first branch port (A) is connected to the first guide port (a), the second branch port (B) is connected to the second guide port (b), and the third branch port (C) is connected to the third guide port (c).

4. The electrolyte circulation system for metal electrolytic cutting according to claim 3, characterized in that: The first guide port (a), the second guide port (b), the third guide port (c), the second branch port (B), and the third branch port (C) all have circular cross-sections with the same cross-sectional area; the first branch port (A) has a straight groove shape, and the width of the groove is the same as the circular diameter of the cross-sections of the first guide port (a), the second guide port (b), the third guide port (c), the second branch port (B), and the third branch port (C).

5. The electrolyte circulation system for metal electrolytic cutting according to any one of claims 1-4, characterized in that: It also includes a cooling group (60) for cooling the electrolyte after use; the return pipe (802) is connected to the input end of the cooling group (60), and the input end of the cooling group (60) is connected to the input end of the filter group (50).

6. The electrolyte circulation system for metal electrolytic cutting according to any one of claims 1-4, characterized in that: It also includes a shower assembly (70) and a shower pipe (808), the input end of which is connected to the shower pipe (808), and the other end of which is connected to the adjustment assembly (30).

Images