Double-tank electrolytic deburring device

Abstract

The invention relates to a double-tank electrolytic deburring device which comprises a cathode mandrel connected with a power supply cathode. A first liquid inlet hole is formed in the cathode mandrel; the protective cap is connected with one end of the cathode mandrel; the sheath is arranged on the cathode core shaft in a sleeving manner; the first cathode piece and the second cathode piece are arranged on the cathode mandrel between the protective cap and the sheath in a sleeving manner; the first cathode plate is arranged close to the protective cap, and the second cathode plate is arranged close to the sheath; wherein the cathode mandrel is sleeved with a workpiece, and the workpiece is connected with a power supply anode; the sheath, the first cathode sheet and the second cathode sheet are arranged between the workpiece and the cathode mandrel; a second liquid inlet hole is formed in the protective cap and is connected with the first cathode plate and the first liquid inlet hole; and the first cathode plate is connected with the first liquid inlet hole. Through the arrangement of the first cathode piece and the second cathode piece, burrs at two positions of a workpiece are removed at the same time, and the burr removing efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of deburring, in particular to a double-tank electrolytic deburring device. Background Art

[0002] The plunger sleeve can be provided with two or more ring grooves to facilitate the provision of a double-layer or even more sealing structure, thereby improving the sealing performance between the plungers and dispersing the pressure on the sealing structure.

[0003] Burrs form between the ring groove and the center hole of the plunger sleeve, as well as between the ring groove and the oblique hole (oil drain hole) connecting to it. Electrolytic deburring removes burrs contactlessly, protecting the workpiece and delivering high efficiency. However, existing electrolytic deburring fixtures are designed for single-groove plunger sleeves. When deburring double-groove plunger sleeves, each groove must be deburred separately, resulting in inefficient burr removal and impacting plunger sleeve processing efficiency.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Summary of the Invention

[0005] In view of the above shortcomings of the prior art, an object of the present invention is to provide a double-slot electrolytic deburring device to improve the processing efficiency of the plunger sleeve.

[0006] The technical solutions of the present invention are as follows: The double-tank electrolytic deburring device comprises: A cathode mandrel is connected to the cathode of the power supply; a first liquid inlet hole is formed on the cathode mandrel; a protective cap connected to one end of the cathode core shaft; A sheath, sleeved on the cathode core shaft; A first cathode sheet and a second cathode sheet are sleeved on the cathode core shaft between the protective cap and the sheath; the first cathode sheet is arranged close to the protective cap, and the second cathode sheet is arranged close to the sheath; In which, a workpiece is sleeved on the cathode core shaft, and the workpiece is connected to the anode of the power supply; the sheath, the first cathode piece and the second cathode piece are arranged between the workpiece and the cathode core shaft; a second liquid inlet hole is opened on the protective cap to connect the first cathode piece and the first liquid inlet hole; the first cathode piece is connected to the first liquid inlet hole.

[0007] A further technical solution is that a connector is provided at one end of the cathode core shaft away from the protective cap; a third liquid inlet hole is provided on the connector to connect to the first liquid inlet hole; the cathode core shaft extends into the third liquid inlet hole; and the connector is connected to the negative pole of the power supply.

[0008] Further, a diameter expanding section is arranged on the cathode mandrel around the axis of the third liquid inlet hole, and the diameter of the diameter expanding section is greater than the diameter of the third liquid inlet hole.

[0009] Further, a supporting sleeve is arranged on the sheath, the supporting sleeve is connected to the connecting head, and the workpiece contacts the supporting sleeve.

[0010] Further, a first limiting part is arranged on the sheath in a protruding manner, a second limiting part is arranged on the inner surface of the supporting sleeve in a protruding manner, and the first limiting part and the second limiting part are arranged between the cathode mandrel in the length direction of the cathode mandrel.

[0011] Further, the outer diameter of the cathode mandrel is reduced to form a step near one end of the cap, and the second cathode sheet contacts the step.

[0012] Further, an adjusting sleeve is arranged on the cathode mandrel between the first cathode sheet and the second cathode sheet.

[0013] Further, a fourth liquid inlet hole is arranged on the adjusting sleeve, and the fourth liquid inlet hole is connected to the first liquid inlet hole and the second cathode sheet.

[0014] Further, a first protrusion is arranged on the cathode mandrel, the first protrusion contacts the sheath, and a first liquid discharge channel is formed between the sheath and the main body of the cathode mandrel.

[0015] Further, a second liquid discharge channel is arranged on the sheath to communicate with the first liquid discharge channel.

[0016] The beneficial technical effects of the present application are as follows: (1) In the double-slot electrolytic deburring device, the cathode mandrel, the first cathode sheet and the second cathode sheet arranged on the cathode mandrel, and the workpiece arranged on the cathode mandrel. When removing burrs on the workpiece, align the first cathode sheet, the second cathode sheet and the position on the workpiece where the burrs need to be removed, fill electrolyte between the workpiece and the mandrel, connect the workpiece to the positive pole of the power supply, and the cathode sheet and the cathode mandrel act as the cathode to dissolve the burrs on the anode workpiece. During the burr removal process, the workpiece will not be squeezed and damaged, and the first cathode sheet and the second cathode sheet can remove burrs at two positions of the workpiece at the same time, and the burr removal efficiency is high. In addition, the cap and the sheath are arranged on the cathode mandrel, and the first cathode sheet and the second cathode sheet are arranged between the cap and the sheath. When electrolyzing the workpiece, the cap and the sheath can protect the position of the workpiece that does not need to be electrolyzed, and avoid the influence of electrolytic corrosion on other surfaces of the workpiece.

[0017] (2) Further, the sheath is further provided with a supporting sleeve, the supporting sleeve limits the position of the workpiece along the axis of the cathode core shaft to fix the workpiece. And the supporting sleeve and the cathode core shaft are provided with an adjusting piece. By replacing adjusting pieces of different lengths, the positional relationship between the supporting sleeve and the cathode core shaft can be quickly adjusted to adapt to workpieces of different sizes.

[0018] (3) Further, the sheath and the cathode core shaft are provided with a gap to form a first liquid discharge channel, the electrolyte after electrolysis is discharged along the first liquid discharge channel, avoiding the accumulation of dissolved metal ions at the electrolysis position to affect the deburring effect of electrolysis. At the same time, the electrolyte flows out along the first liquid discharge channel without contacting other surfaces of the workpiece, avoiding corrosion of the workpiece at positions that do not need electrolysis. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A front view structural schematic diagram of a double-tank electrolytic deburring device of an embodiment of the present disclosure is shown.

[0020] Figure 2 A vertical section structural schematic diagram of a double-tank electrolytic deburring device of an embodiment of the present disclosure is shown after the workpiece is assembled.

[0021] Figure 3 A local enlarged view of the double-tank electrolytic deburring device of an embodiment of the present disclosure at A is shown.

[0022] Figure 4 A schematic diagram of the electrolyte flow path of the double-tank electrolytic deburring device of an embodiment of the present disclosure is shown.

[0023] Markings in the drawings: 1, connecting head; 11, third liquid inlet hole; 2, cathode core shaft; 21, first liquid inlet hole; 22, diameter expansion section; 23, first protrusion; 24, step; 25, first cathode piece; 26, adjusting sleeve; 261, fourth liquid inlet hole; 262, second protrusion; 27, second cathode piece; 3, protective cap; 31, second liquid inlet hole; 4, sheath; 41, first liquid discharge channel; 42, second liquid discharge channel; 43, first limiting part; 44, supporting part; 5, supporting sleeve; 51, third liquid discharge channel; 52, second limiting part; 521, accommodation slot; 6, adjusting piece; 7, electrolyte; 8, workpiece. DETAILED DESCRIPTION

[0024] For the purpose of making the objects, features and advantages of the present application more apparent, reference will be made to the accompanying drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the present disclosure are merely intended to facilitate the understanding and reading of the present disclosure by those skilled in the art, and are not intended to limit the conditions for implementing the present application, and therefore do not have substantial technical significance. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes that can be achieved by the present application, shall still fall within the scope of the technical content disclosed by the present application.

[0025] In the description of the present application, the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only intended to facilitate the description of the present application and simplify the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0026] Figure 1 A front structural schematic diagram of a double-slot electrolytic deburring device of an embodiment of the present disclosure is shown. Figure 2 A vertical cross-sectional structural schematic diagram of a double-slot electrolytic deburring device of an embodiment of the present disclosure is shown after the workpiece is assembled. Figure 3 A local enlarged view of the double-slot electrolytic deburring device of an embodiment of the present disclosure at A is shown. Please refer to Figure 1 , Figure 2 and Figure 3 , the double-slot electrolytic deburring device includes a cathode mandrel 2, a cap 3, a sheath 4, a first cathode sheet 25 and a second cathode sheet 27. The cathode mandrel 2 is connected to the cathode of the power supply, and a first liquid inlet hole 21 is formed on the cathode mandrel 2. The cap 3 is connected to one end of the cathode mandrel 2. A threaded hole (not labeled in the figure) is formed at one end of the cathode mandrel 2, and the cap 3 extends into the threaded hole and screws into the cathode mandrel 2. The outer diameter of the part of the cap 3 extending out of the cathode mandrel 2 is enlarged, reducing the gap between the cap 3 and the workpiece 8, so as to reduce the flow of electrolyte 7 to the surface of the workpiece 8 that does not need to be electrolyzed. The sheath 4 is sleeved on the cathode mandrel 2. The first cathode sheet 25 and the second cathode sheet 27 are sleeved on the cathode mandrel 2 between the cap 3 and the sheath 4.

[0027] Among them, the workpiece 8 is sleeved on the cathode core shaft 2, and the workpiece 8 is connected to the anode of the power supply. The sheath 4, the first cathode plate 25, and the second cathode plate 27 are arranged between the workpiece 8 and the cathode core shaft 2. The protective cap 3 is provided with a second liquid inlet 31 connecting the first cathode plate 25 and the first liquid inlet 21. The first cathode plate 25 is connected to the first liquid inlet 21. Around the axis of the cathode core shaft 2, the second liquid inlet 31 can be provided with two or more holes facing the first cathode plate 25 to more evenly transport the electrolyte 7 to the electrolysis position of the first cathode plate 25. When removing burrs from the workpiece 8, the first cathode plate 25, the second cathode plate 27 and the position on the workpiece 8 where the burrs need to be removed are aligned, and the electrolyte 7 is filled between the workpiece 8 and the core shaft. The workpiece 8 is connected to the positive pole of the power supply. The cathode plate and the cathode core shaft 2 act as cathodes to dissolve the burrs on the anode workpiece 8. The workpiece 8 will not be squeezed or damaged during the burr removal process. The first cathode plate 25 is arranged near the protective cap 3, and the second cathode plate 27 is arranged near the sheath 4. The arrangement of the first cathode plate 25 and the second cathode plate 27 allows for simultaneous deburring of two locations on the workpiece 8, resulting in highly efficient burr removal. Furthermore, a protective cap 3 and a protective sheath 4 are provided on the cathode mandrel 2, with the first cathode plate 25 and the second cathode plate 27 disposed between the protective cap 3 and the protective sheath 4. During electrolysis of the workpiece 8, the protective cap 3 and the protective sheath 4 protect the locations on the workpiece 8 that do not require electrolysis, preventing electrolytic corrosion from affecting other surfaces of the workpiece 8.

[0028] Preferably, the first cathode plate 25 and the second cathode plate 27 are configured with reference to the shape of the area to be deburred on the workpiece 8. For example, when machining the annular groove of the plunger sleeve, the first cathode plate 25 and the second cathode plate 27 can be annular. If the annular groove in the plunger sleeve is spirally formed, the first cathode plate 25 and the second cathode plate 27 can also be spirally shaped. This application does not limit the shape of the first cathode plate 25 and the second cathode plate 27. The first cathode plate 25 and the second cathode plate 27 are aligned with the center of the annular groove. Along the length of the cathode core shaft 2, the width of the annular groove is preferably within twice the thickness of the first cathode plate 25 or the second cathode plate 27. This allows the first cathode plate 25 and the second cathode plate 27 to initially form a discharge tip for the annular groove, concentrating the charge at the tip of the burr in the annular groove. In addition, a gap of 0.1 mm can be provided between the plunger sleeve and the protective cap 3, between the plunger sleeve and the protective sleeve 4, and between the plunger sleeve and the adjusting sleeve 26 to facilitate the flow of the electrolyte 7 and prevent the burrs from dissolving into metal ions and accumulating at the electrolysis site, affecting the subsequent electrolytic deburring effect.

[0029] Please refer to Figure 2 and Figure 3The connecting head 1 is provided on the end of the cathode mandrel 2 away from the cap 3. The connecting head 1 is provided with a third liquid inlet hole 11 connected with the first liquid inlet hole 21. The cathode mandrel 2 extends into the third liquid inlet hole 11 and is connected by insertion. The connecting head 1 is connected with the negative pole of the power supply. In some embodiments, the negative pole of the power supply is provided with a flange with internal threads, and the end of the connecting head 1 away from the cathode mandrel 2 is provided with external threads for threadedly connecting the power supply and the connecting head 1. The threaded connection ensures that the contact surface of the connecting head 1 and the negative pole of the power supply is tightly fitted, ensuring stable current supply and guaranteeing the effect of electrolytic deburring. Correspondingly, the cathode mandrel 2 is provided with an expanded diameter section 22 with an expanded diameter along the axis of the third liquid inlet hole 11. The diameter of the expanded diameter section 22 is greater than the diameter of the third liquid inlet hole 11, so that when the cathode mandrel 2 is connected to the connecting head 1 by insertion, the position of the cathode mandrel 2 and the connecting head 1 can be quickly positioned by the expanded diameter section 22. In addition, the expanded diameter section 22 on the side of the connecting head 1 can contact the sheath 4, quickly positioning the position of the sheath 4 along the axis of the cathode mandrel 2.

[0030] Preferably, the sheath 4 is further provided with a support sleeve 5. The support sleeve 5 is connected with the connecting head 1. Specifically, the outer surface of the connecting head 1 is provided with external threads, and the support sleeve 5 is provided with internal threads for threadedly connecting the support sleeve 5 and the connecting head 1. The workpiece 8 contacts the support sleeve 5, and the position of the workpiece 8 along the axis of the cathode mandrel 2 is limited by the support sleeve 5, fixing the workpiece 8. During electrolysis, the cathode mandrel 2 is vertically arranged, and the end of the cathode mandrel 2 connected with the cap 3 is arranged upward to facilitate the support sleeve 5 supporting the workpiece 8. Taking the plunger sleeve of the workpiece 8 as an example, the end of the workpiece 8 with a larger outer diameter is arranged to contact the support sleeve 5, enhancing the stability of the support between the support sleeve 5 and the workpiece 8.

[0031] More preferably, the sheath 4 is provided with a first limiting portion 43 protruding therefrom. The inner surface of the support sleeve 5 is provided with a second limiting portion 52 protruding therefrom. The surface of the second limiting portion 52 close to the cap 3 contacts and supports the workpiece 8, limiting the position of the workpiece 8 along the axis of the cathode mandrel 2. Along the length direction of the cathode mandrel 2. The first limiting portion 43 and the second limiting portion 52 are provided with an adjusting piece 6 therebetween, and the surface of the second limiting portion 52 close to the adjusting piece 6 contacts and abuts against the adjusting piece 6. By replacing the adjusting piece 6 with different lengths, the positional relationship between the support sleeve 5 and the cathode mandrel 2 can be quickly adjusted to adapt to workpieces 8 of different sizes.

[0032] In some embodiments, the second limiting portion 52 of the support sleeve 5 and the sheath 4 are provided with a yielding slot 521. When the workpiece 8 is sleeved on the sheath 4, the yielding slot 521 avoids the corner of the workpiece 8, avoiding the interference between the position of the protruding corner of the workpiece 8 and the angle position between the support sleeve 5 and the sheath 4, ensuring the fit between the workpiece 8 and the support sleeve 5, and the workpiece is installed in place.

[0033] Correspondingly, the outer surface of the sheath 4 is provided with a support portion 44. The support portion 44 supports the adjusting sheet 6, and the adjusting sheet 6 contacts the second limiting portion 52 at one end of the support portion 44, so as to avoid the adjusting sheet 6 from extending into the accommodating groove 521.

[0034] Figure 4 A double-slot electrolytic deburring device according to an embodiment of the present disclosure is shown, and a schematic diagram of an electrolyte flow path is shown. Please refer to Figure 2 、 Figure 3 and Figure 4 The adjusting sleeve 26 is sleeved on the cathode mandrel 2 between the first cathode sheet 25 and the second cathode sheet 27. The adjusting sleeve 26 fills and limits the gap between the first cathode sheet 25 and the second cathode sheet 27, so that the first cathode sheet 25 and the second cathode sheet 27 correspond to two different machining positions on the workpiece 8. In some embodiments, the cap 3 and the adjusting sleeve 26 contact the surface of the first cathode sheet 25 or the second cathode sheet 27, and a second protrusion 262 is arranged respectively. The second protrusion 262 directly contacts the first cathode sheet 25 or the second cathode sheet 27, and a gap is arranged between the cap 3 and the first cathode sheet 25, between the adjusting sleeve 26 and the first cathode sheet 25, and between the adjusting sleeve 26 and the second cathode sheet 27, respectively, to facilitate the flow of the electrolyte 7 into the electrolysis position of the first cathode sheet 25 and the second cathode sheet 27.

[0035] The adjusting sleeve 26, the cap 3, and the sheath 4 can be made of insulating materials, so as to better protect the workpiece 8 and avoid electrolytic corrosion of positions of the workpiece 8 that do not need to be machined.

[0036] Preferably, a fourth liquid inlet hole 261 is arranged on the adjusting sleeve 26. The fourth liquid inlet hole 261 is connected to the first liquid inlet hole 21 and the second cathode sheet 27, so that the electrolyte 7 in the first liquid inlet hole 21 can flow to the electrolysis position of the second cathode sheet 27. The fourth liquid inlet hole 261 is arranged on the adjusting sleeve 26, and the detachable adjusting sleeve 26 facilitates the cleaning and maintenance of the fourth liquid inlet hole 261. The fourth liquid inlet hole 261 can include at least two holes facing the first cathode sheet 25, so as to uniformly deliver the electrolyte 7 to the first cathode sheet 25.

[0037] Please refer to Figure 2 、 Figure 3 and Figure 4 The first protrusion 23 is arranged on the cathode mandrel 2. The first protrusion 23 contacts the sheath 4. The sheath 4 and the main body of the cathode mandrel 2 form a first liquid discharge channel 41. In some embodiments, the first protrusion 23 is a ring segment arranged around the axis of the cathode mandrel 2. Along the gap between adjacent ring segments, the electrolyte 7 can flow in the first liquid inlet hole 21 through the first protrusion 23.

[0038] Preferably, the second liquid discharge channel 42 is formed on the sheath 4 to communicate with the first liquid discharge channel 41, guiding the electrolyte 7 in the first liquid discharge channel 41 to flow out of the sheath 4 along the second liquid discharge channel 42. Correspondingly, the third liquid discharge channel 51 is formed on the support sleeve 5 to communicate with the second liquid discharge channel 42. The electrolyte 7 at the positions of the first cathode sheet 25 and the second cathode sheet 27 can flow out of the double-tank electrolytic deburring device along the first liquid discharge channel 41, the second liquid discharge channel 42 and the third liquid discharge channel 51.

[0039] More preferably, the cathode mandrel 2 has an outer diameter reduced to form a step 24 at one end close to the cap 3. The second cathode sheet 27 contacts the step 24. The position of the second cathode sheet 27 is limited by the step 24, and a gap is left between the second cathode sheet 27 and the sheath 4, facilitating the flow of the electrolyte 7 into the first liquid inlet hole 21.

[0040] The specific working process of the present application is as follows: When the workpiece 8 is electrolyzed, first, the adjusting sheet 6 of different length size is replaced according to the length size of the workpiece 8, adjusting the position between the support sleeve 5 and the cathode mandrel 2. Then, the negative electrode of the power supply is connected to the connecting head 1, and the position of the double-tank electrolytic deburring device is fixed. The workpiece 8 is sleeved on the cathode mandrel 2 and the positive electrode of the power supply is connected, and the end surface of the workpiece 8 contacts the support sleeve 4. The pump body (not shown in the figure) drives the electrolyte 7 to flow into the electrolysis position of the first cathode sheet 25 along the third liquid inlet hole 11, the first liquid inlet hole 21 and the second liquid inlet hole 31. The pump body drives the electrolyte 7 to flow into the electrolysis position of the second cathode sheet 27 along the third liquid inlet hole 11, the first liquid inlet hole 21 and the fourth liquid inlet hole 261. Under the driving of the pump body, the electrolyte 7 at the electrolysis position flows out of the double-tank electrolytic deburring device along the first liquid discharge channel 41, the second liquid discharge channel 42 and the third liquid discharge channel 51. The current is turned on, and the cathode mandrel 2, the electrolyte 7 and the workpiece 8 are in electrically conductive communication, and the protruding burrs (not shown in the figure) on the anode workpiece 8 are dissolved into metal ions and carried away by the electrolyte 7. Until the workpiece 8 is deburred, the current is turned off, and the workpiece 8 is taken out, and the workpiece 8 is deburred.

[0041] The technical features of the above-mentioned embodiments can be combined in any way. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the present application.

[0042] The above-mentioned embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A double-tank electrolytic deburring device, characterized in that: The double-tank electrolytic deburring device comprises: A cathode mandrel is connected to the cathode of the power supply; a first liquid inlet hole is formed on the cathode mandrel; a protective cap connected to one end of the cathode core shaft; A sheath, sleeved on the cathode core shaft; A first cathode sheet and a second cathode sheet are sleeved on the cathode core shaft between the protective cap and the sheath; the first cathode sheet is arranged close to the protective cap, and the second cathode sheet is arranged close to the sheath; In which, a workpiece is sleeved on the cathode core shaft, and the workpiece is connected to the anode of the power supply; the sheath, the first cathode piece and the second cathode piece are arranged between the workpiece and the cathode core shaft; a second liquid inlet hole is opened on the protective cap to connect the first cathode piece and the first liquid inlet hole; the first cathode piece is connected to the first liquid inlet hole.

2. The double-tank electrolytic deburring device according to claim 1, characterized in that: A connector is provided at one end of the cathode core shaft away from the protective cap; a third liquid inlet hole is provided on the connector head to connect to the first liquid inlet hole; the cathode core shaft extends into the third liquid inlet hole; and the connector head is connected to the negative pole of the power supply.

3. The double-tank electrolytic deburring device according to claim 2, characterized in that: Around the axis of the third liquid inlet hole, the cathode core shaft is provided with an enlarged diameter section with an enlarged outer diameter; the outer diameter of the enlarged diameter section is greater than the aperture of the third liquid inlet hole.

4. The double-tank electrolytic deburring device according to claim 2, characterized in that: A supporting sleeve is also sleeved on the protective sleeve; the supporting sleeve is connected to the connecting head; and the workpiece contacts the supporting sleeve.

5. The double-tank electrolytic deburring device according to claim 4, characterized in that: A first limiting portion is provided on the protrusion of the sheath; a second limiting portion is provided on the inner surface of the support sleeve; and an adjustment piece is provided between the first limiting portion and the second limiting portion along the length direction of the cathode core shaft.

6. The double-tank electrolytic deburring device according to claim 1, characterized in that: The outer diameter of one end of the cathode core shaft close to the protective cap is reduced to form a step; the second cathode piece contacts the step.

7. The double-tank electrolytic deburring device according to claim 1, characterized in that: An adjustment sleeve is sleeved on the cathode core shaft between the first cathode piece and the second cathode piece.

8. The double-tank electrolytic deburring device according to claim 7, characterized in that: A fourth liquid inlet hole is provided on the regulating sleeve; the fourth liquid inlet hole is connected to the first liquid inlet hole and the second cathode plate.

9. The double-tank electrolytic deburring device according to claim 1, characterized in that: A first protrusion is provided on the cathode core shaft; the first protrusion contacts the sheath; and a first liquid drainage channel is formed between the sheath and the main body of the cathode core shaft.

10. The double-tank electrolytic deburring device according to claim 9, characterized in that: The sheath is provided with a second drainage channel connected to the first drainage channel.

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