Electrolytic polishing device for deep hole of vacuum product

Abstract

The invention discloses a vacuum product deep hole electrolytic polishing device which comprises an anode workpiece, polishing holes are formed in the anode workpiece, the polishing holes comprise a plurality of polishing main holes and polishing auxiliary holes, the polishing main holes are communicated with the polishing auxiliary holes, a fixing base is connected to the anode workpiece, a cathode needle is arranged on the fixing base, and the anode workpiece is provided with a plurality of anode holes. The fixed base comprises a main base and an auxiliary base, the main base is provided with a plurality of main cathode needles, the anode workpiece is connected with the auxiliary base, the auxiliary base is connected with a plurality of auxiliary cathode needles, and the main cathode needles and the auxiliary cathode needles are in threaded connection at the joint. According to the electrolytic polishing device for the deep holes of the vacuum products, electrolytic polishing can be conducted on structures of deep holes, the electrolytic polishing efficiency is more uniform, the performance of the surface structures of the deep holes is more excellent, and the electrolytic stability and uniformity can be guaranteed when electrolytic polishing is conducted on various deep holes.

Description

Technical Field

[0001] The present invention relates to the field of electrolysis technology, and particularly to an electrolytic polishing device for deep holes of vacuum products. Background Art

[0002] For example, the publication number "CN221681253U" discloses "an electrolytic device for metal surface treatment", which includes a substrate and an electrolytic barrel. The electrolytic barrel is fixedly installed on the upper side of the substrate. Fixing blocks are evenly installed inside the electrolytic barrel. Positioning columns are fixedly installed at the left and right ends of the upper side of the substrate. A lifting rod is movably installed inside the positioning column. Positioning holes are evenly opened on the upper side of the lifting rod. A fixing plate is fixedly installed at the top of the lifting rod. However, in actual applications, the holes in the product may have burrs or surfaces with extremely high roughness, which will affect the flow of the fluid. Therefore, such deep holes need to be electrolyzed. However, due to the relatively deep holes, it is impossible to evenly electrolytically polish the inside of the deep holes. Especially when there are many deep holes on the product, it is even more difficult to control the uniformity of electrolysis. Summary of the Invention

[0003] Aiming at the problem in the prior art mentioned in the background art that the electrolytic polishing effect inside the deep holes cannot be evenly controlled, the present invention provides an electrolytic polishing device for deep holes of vacuum products, which can electrolytically polish deep-hole structures, and the efficiency of electrolytic polishing is more uniform, making the performance of the surface structure of the deep holes more excellent. Moreover, when dealing with the electrolytic polishing of multiple deep holes, it can also ensure the stability and uniformity of electrolysis.

[0004] To achieve the above object, the present invention adopts the following technical solutions.

[0005] An electrolytic polishing device for deep holes of a vacuum product, comprising an anode workpiece. There are polishing holes on the anode workpiece. The polishing holes include a number of main polishing holes and auxiliary polishing holes. The main polishing holes and the auxiliary polishing holes are connected. A fixed base is connected to the anode workpiece. A cathode needle is arranged on the fixed base. The fixed base includes a main base and an auxiliary base. A number of main cathode needles are arranged on the main base. The anode workpiece is connected to the auxiliary base, and a number of auxiliary cathode needles are connected to the auxiliary base. The main cathode needles and the auxiliary cathode needles are threadedly connected at the junction. In this application, the anode workpiece is provided with multiple polishing holes, among which the polishing holes include main polishing holes and auxiliary polishing holes with various different specifications and sizes. The size structures of the main polishing holes and the auxiliary polishing holes are different. The definitions of the main polishing holes and the auxiliary polishing holes can be distinguished according to the actual situation, and can be defined according to the depth or length of the polishing holes. The number of the main polishing holes and the auxiliary polishing holes can also be set to multiple. The cathode needles arranged on the fixed base can penetrate into the polishing holes, so as to realize uniform electrolysis in the polishing holes. The main cathode needles are connected to the main polishing holes, and the auxiliary cathode needles are connected to the auxiliary polishing holes. Since there are differences in the installation positions of the main polishing holes and the auxiliary polishing holes, the fixed base also needs to be correspondingly modified. The fixed base can be connected to the anode workpiece for fixation. At corresponding different positions, the fixed base is divided into a main base and an auxiliary base. The main cathode needles are connected to the main base, and the auxiliary cathode needles are connected to the auxiliary base. At the same time, the connection between the main cathode needles and the auxiliary cathode needles is a threaded connection, that is, there are threaded holes or threaded rods on the main cathode needles or the auxiliary cathode needles, and the opposite threaded rods or threaded holes are arranged on the other auxiliary cathode needles and the main cathode needles. After the auxiliary cathode needles and the main cathode needles are butted, the two can be threadedly connected through the threaded structure. Therefore, the main cathode needles and the auxiliary cathode needles can be mutually limited and constrained, and the reliable connection of the main base and the auxiliary base is related, so that both ends of the cathode needles can be limited and fixed, further improving the placement stability of each cathode needle in the polishing hole and avoiding the situation that only one end of the cathode needle is fixed and the other end deflects and droops due to the gravity effect.

[0006] Preferably, the diameter of the cathode needle is smaller than the diameter of the polishing hole. The diameter of the cathode needle is set to be smaller than the diameter of the polishing hole. The diameter of the main cathode needle is smaller than the diameter of the main polishing hole, and the diameter of the auxiliary cathode needle is smaller than the diameter of the auxiliary polishing hole, so that there is a certain gap between the cathode needle and the polishing hole, and the electrolyte can flow into the interior of the polishing hole from this gap, thus ensuring the uniformity of electrolysis and the smooth flow of the electrolyte.

[0007] Preferably, the fixed base includes a connecting block and a mounting plate, wherein the connecting block is connected to the anode workpiece, and the mounting plate is connected to the cathode needle, wherein the mounting plate and the connecting block are arranged in an "L" shape, and a flow gap exists between the mounting plate and the anode workpiece, wherein the flow gap connects to the polishing hole. The fixed base includes a connecting block and a mounting plate, wherein the connecting block is connected to the anode workpiece, and the connection method includes but is not limited to bolt connection, plug connection, and snap connection, while the mounting plate is connected to the cathode needle, and the connecting block is not connected to the cathode needle, wherein the connecting block and the mounting plate are arranged in an "L" shape, so that during the connection process, after the connecting block is connected to the anode workpiece, the mounting plate will not be connected to the anode workpiece, so that a flow gap exists between the mounting plate and the anode workpiece, enabling the electrolyte to flow into the polishing hole, thereby ensuring the uniform fluidity of the electrolyte.

[0008] Preferably, the fixed base includes a plurality of fixed positions, the cathode needle is set on each fixed position, the fixed base is connected to a conductive plate, the conductive plate is connected to each fixed position, and the conductive plate is set between the cathode needle and the fixed position. The fixed base is provided with fixed positions, each fixed position is used to connect the cathode needle, wherein the fixed base is connected to a conductive plate, the conductive plate is made of titanium, and the cathode needle is made of tungsten alloy. The fixed base is made of bakelite, wherein tungsten alloy has good electrical conductivity and thermal conductivity, high hardness makes it not easy to deform, and can also be applied to electrolytic polishing tank liquid with good corrosion resistance, ensuring its electrolytic polishing effect. Titanium alloy also has excellent corrosion resistance, as well as its fatigue resistance and mechanical strength and ductility are excellent and not easy to break. This material also avoids the release of heavy metals or harmful substances that affect the tank liquid. Finally, bakelite has excellent resistance to acid, including its pressure resistance, bending resistance, heat resistance and impact resistance, etc., can easily withstand heavy pressure and bending force, and is not easily damaged; each fixed position is connected by a conductive plate, thereby ensuring that each cathode needle can ensure conductive connectivity.

[0009] Preferably, the main cathode needle has a flat head at its end, a threaded hole is provided on the main base, a connecting hole is provided on the flat head, and a bolt is connected to the connecting hole. The main cathode needle has a flat head at its end, a connecting hole is provided on the flat head, a threaded hole is provided on the main base, the threaded hole and the connecting hole are butted together, and the connecting hole and the threaded hole are connected by a bolt, thereby ensuring that the flat head of the main cathode needle can be stably connected to the main base.

[0010] Preferably, a limiting hole is provided on the fixed base, and the cathode needle is clearance-matched with the limiting hole. The limiting hole is provided on the fixed base, wherein the limiting hole can be connected to the cathode needle. Through the clearance fit between the limiting hole and the cathode needle, the limiting effect of the cathode needle can be ensured, and the fixing stability of the cathode needle can be ensured.

[0011] Preferably, a connecting screw hole is provided on the main cathode needle, and a connecting screw rod is provided on the auxiliary cathode needle. The connecting screw hole is in threaded connection with the connecting screw rod, and the axial direction of the connecting screw hole is the same as the axial direction of the corresponding connected auxiliary cathode needle. By providing a connecting screw hole on the main cathode needle, where the main cathode needle is first installed and set as the main cathode needle structure, setting the connecting screw hole on the main cathode needle can facilitate the subsequent docking connection between the auxiliary cathode needle and the main cathode needle.

[0012] Preferably, an angle adjusting member is provided on the fixed base. The angle adjusting member includes a fixed main body, a clamp is provided on the fixed main body, a connecting rod is rotatably connected inside the clamp, and a number of limiting holes are provided inside the connecting rod. The cathode needle is snap-fitted into the limiting holes. By providing an angle adjusting member on the fixed base, the angle of the cathode needle can be adjusted. When the angle of the polishing hole in the anode workpiece is not set at a conventional angle, the angle of the cathode needle can be adjusted so that the axis of the cathode needle is parallel to the axis of the polishing hole. Specifically, the angle adjusting member includes a fixed main body and a clamp. The clamp is provided on the fixed main body. The clamp can connect the connecting rod, and the connecting rod can rotate inside the clamp, so that the angle of the limiting holes on the connecting rod can change. Therefore, when the cathode needle is connected to the limiting holes, the angle can change, thereby improving the angle adaptability of the cathode needle.

[0013] Preferably, the fixed main body includes a main body seat connected to the anode workpiece. A distance adjusting disk is rotatably connected to the main body seat. A clamp is provided on the distance adjusting disk. The clamp and the connecting rod are eccentrically arranged relative to the center of the axis of the distance adjusting disk. The fixed main body includes a main body seat and a distance adjusting disk. The main body seat is connected to the anode workpiece, and the main body seat and the anode workpiece are relatively fixed. The distance adjusting disk is rotatably connected to the main body seat, and at the same time, the clamp is provided on the distance adjusting disk. The setting position of the clamp is eccentrically arranged relative to the center of the axis of the distance adjusting disk. Therefore, during the rotation of the distance adjusting disk, the center position of the clamp will change in the horizontal direction, thereby realizing the adjustment of the center position of the clamp. Thus, when the connection position between the fixed main body and the anode workpiece remains unchanged, the relative position and relative angle of the connecting rod can be changed simultaneously by rotating the distance adjusting disk and the connecting rod inside the clamp, avoiding the situation where when the position of the main body seat remains fixed and the angle is adjusted by rotating the connecting rod, the limiting holes inside the connecting rod cannot be aligned with the inclined polishing hole. Therefore, at this time, by rotating the distance adjusting disk, the position of the connecting rod can be displaced so that the orifice of the limiting hole is aligned with the orifice of the polishing hole, thereby improving the flexibility of angle adjustment and avoiding being affected by the connection position between the anode workpiece and the main body seat.

[0014] Preferably, the clamp includes an adjustment hole rotatably connected to the connecting rod, and the clamp includes a reduced-edge plate surrounding the adjustment hole, and a locking member is provided on the reduced-edge plate. The adjustment hole in the clamp is used to rotatably connect the connecting rod. Wherein, a reduced-edge plate is provided on the clamp, and the reduced-edge plates are respectively arranged on both sides of the adjustment hole. By moving the reduced-edge plates on both sides closer to each other, the aperture of the adjustment hole is reduced, thereby realizing the locking of the connecting rod. When the reduced-edge plates on both sides move away from each other, the aperture of the adjustment hole can be enlarged, and then the connecting rod can be rotated, and the angle orientation of the limiting hole can be adjusted. The locking member includes but is not limited to a bolt-nut connection, which is convenient for adjustment and at the same time ensures the stability of locking.

[0015] The beneficial effects of the present invention are as follows: (1) It can electrolytically polish the structures of deep holes, and the efficiency of electrolytic polishing is more uniform, making the performance of the surface structure of the deep holes more excellent. When dealing with the electrolytic polishing of multiple deep holes, it can also ensure the stability and uniformity of electrolysis; (2) It can ensure the smooth flow effect of the electrolyte during electrolysis, so that the electrolyte can flow evenly into the polishing holes; (3) Through the threaded connection at the joint of the main cathode needle and the auxiliary cathode needle, the main cathode needle and the auxiliary cathode needle can be mutually restricted and limited, ensuring that both ends of the cathode needle can be fixed, thus ensuring the placement stability of the cathode needle in the polishing hole; (4) Through the angle adjusting member, the angle and orientation of the limiting hole can be controlled, so as to ensure that the orifice of the limiting hole can be aligned with the inclined polishing hole, ensuring the flexibility of adjustment. Description of the Drawings

[0016] Figure 1 is the axonometric view of the present invention.

[0017] Figure 2 is the sectional view of the present invention.

[0018] Figure 3 is Figure 1 the partial enlarged view at A in

[0019] Figure 4 is Figure 2 the partial enlarged view at B in

[0020] Figure 5 is Figure 2 the partial enlarged view at C in

[0021] Figure 6 is Figure 1 the bottom view of

[0022] Figure 7 is Figure 2 the partial enlarged view at D in

[0023] Figure 8 It is the dynamic flowchart of Embodiment 2.

[0024] Figure 9 is Figure 8 the sectional view taken along A-A in

[0025] In the figure: 1 Anode workpiece, 11 Polishing holes, 111 Main polishing hole, 112 Auxiliary polishing hole; 2 Fixed base, 21 Main base, 211 Threaded hole, 22 Auxiliary base, 23 Connecting block, 24 Mounting plate, 25 Fixing position, 26 Conductive plate, 27 Limiting hole, 28 Connecting rod; 31 Main cathode needle, 311 Flat head, 312 Connecting hole, 313 Connecting threaded hole, 32 Auxiliary cathode needle, 321 Connecting screw; 4 Flow-through gap; 5 Angle adjusting member, 51 Fixed main body, 511 Main body seat, 512 Distance adjusting disc, 52 Clamp, 521 Adjusting hole, 522 Reduced-edge plate, 53 Locking member. Specific embodiments

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] Embodiment 1: Such as Figure 1As shown in the figure, an electrolytic polishing device for deep holes of a vacuum product includes an anode workpiece 1. There are polishing holes 11 on the anode workpiece 1. The polishing holes 11 include a number of main polishing holes 111 and auxiliary polishing holes 112. The main polishing holes 111 and the auxiliary polishing holes 112 are connected. A fixed base 2 is connected to the anode workpiece 1. A cathode needle is provided on the fixed base 2. The fixed base 2 includes a main base 21 and an auxiliary base 22. A number of main cathode needles 31 are provided on the main base 21. The anode workpiece 1 is connected to the auxiliary base 22, and a number of auxiliary cathode needles 32 are connected to the auxiliary base 22. The main cathode needles 31 and the auxiliary cathode needles 32 are threadedly connected at the junction. In this application, the anode workpiece 1 is provided with a number of polishing holes 11. Among them, the polishing holes 11 include main polishing holes 111 and auxiliary polishing holes 112 with various different specifications and sizes. The size structures of the main polishing holes 111 and the auxiliary polishing holes 112 are different. The definitions of the main polishing holes 111 and the auxiliary polishing holes 112 can be distinguished according to the actual situation, and can be defined according to the depth or length of the polishing holes 11. The numbers of the main polishing holes 111 and the auxiliary polishing holes 112 can also be set to be multiple. The cathode needles provided on the fixed base 2 can penetrate into the polishing holes 11, so as to achieve uniform electrolysis in the polishing holes 11. The main cathode needles 31 are connected to the main polishing holes 111, and the auxiliary cathode needles 32 are connected to the auxiliary polishing holes 112. Since there are differences in the installation positions of the main polishing holes 111 and the auxiliary polishing holes 112, the fixed base 2 also needs to be correspondingly modified. The fixed base 2 can be connected to the anode workpiece 1 for fixation. At the corresponding different positions, the fixed base 2 is divided into a main base 21 and an auxiliary base 22. The main cathode needles 31 are connected to the main base 21, and the auxiliary cathode needles 32 are connected to the auxiliary base 22. At the same time, the connection between the main cathode needles 31 and the auxiliary cathode needles 32 is a threaded connection. That is, a threaded hole 211 or a threaded rod is provided on the main cathode needle 31 or the auxiliary cathode needle 32, and a corresponding threaded rod or threaded hole 211 is provided on the other auxiliary cathode needle 32 and the main cathode needle 3i. After the auxiliary cathode needle 32 and the main cathode needle 31 are butted, the two can be threadedly connected through the threaded structure. Therefore, the main cathode needles 31 and the auxiliary cathode needles 32 can be mutually limited and constrained, and the reliable connection of the main base 21 and the auxiliary base 22 is related, so that both ends of the cathode needle can be limited and fixed, further improving the placement stability of each cathode needle in the polishing hole 11, and avoiding the situation that only one end of the cathode needle is fixed and the other end is deflected and sagged due to the gravity effect.

[0028] As Figure 2As shown, the diameter of the cathode needle is smaller than that of the polishing hole 11. The diameter of the cathode needle is set to be smaller than that of the polishing hole 11. Among them, the diameter of the main cathode needle 31 is smaller than that of the main polishing hole 111, and the diameter of the auxiliary cathode needle 32 is smaller than that of the auxiliary polishing hole 112. Thus, there is a certain gap between the cathode needle and the polishing hole 11, enabling the electrolyte to flow into the interior of the polishing hole 11 from this gap, thereby ensuring the uniformity of electrolysis and the smooth flow of the electrolyte.

[0029] As Figure 4 , 6 shown, the fixed base 2 includes a connecting block 23 and a mounting plate 24. The connecting block 23 is connected to the anode workpiece 1, and the mounting plate is connected to the cathode needle. The mounting plate 24 and the connecting block 23 are arranged in an "L" shape. There is a flow-through gap 4 between the mounting plate 24 and the anode workpiece 1, and the flow-through gap 4 communicates with the polishing hole 11. The fixed base 2 includes a connecting block 23 and a mounting plate. Among them, the connecting block 23 is connected to the anode workpiece 1, and the connection methods include but are not limited to bolt connection, plug connection, and snap connection. The mounting plate is connected to the cathode needle, and the connecting block 23 is not connected to the cathode needle. The connecting block 23 and the mounting plate are arranged in an "L" shape. Therefore, during the connection process, after the connecting block 23 is connected to the anode workpiece 1, the mounting plate will not be connected to the anode workpiece 1, resulting in a flow-through gap 4 between the mounting plate and the anode workpiece 1, enabling the electrolyte to flow into the polishing hole 11 and ensuring the uniform fluidity of the electrolyte.

[0030] As Figure 3 shown, the fixed base 2 includes a number of fixing positions 25, and the cathode needles are arranged on each fixing position 25. A conductive plate 26 is connected to the fixed base 2, and the conductive plate 26 is connected to each fixing position 25. The conductive plate 26 is arranged between the cathode needle and the fixing position 25. The fixed base 2 is provided with fixing positions 25, and each fixing position 25 is used to connect the cathode needle. Among them, a conductive plate 26 is connected to the fixed base 2. The material of the conductive plate 26 is titanium, and the material of the cathode needle is tungsten alloy. The material of the fixed base 2 is bakelite. Tungsten alloy has good electrical conductivity and thermal conductivity, and its high hardness makes it not easy to deform. It is also suitable for good corrosion resistance in the electrolytic polishing bath solution to ensure its electrolytic polishing effect. Titanium alloy also has excellent corrosion resistance, and its fatigue resistance, mechanical strength, and ductility performance are excellent and not easy to break. This material also avoids releasing heavy metals or harmful substances to affect the bath solution. Finally, bakelite has excellent resistance to acids, including its pressure resistance, bending resistance, heat resistance, and impact strength, etc. It can easily withstand heavy pressure and bending force and is not easily damaged. By connecting each fixing position 25 through the conductive plate 26, the conductive connection effect of each cathode needle can be ensured.

[0031] As Figure 3As shown in the figure, a flat head 311 is provided at the end of the main cathode needle 31, a threaded hole 211 is provided on the main base 21, a connection hole 312 is provided on the flat head 311, and a bolt is connected between the threaded hole 211 and the connection hole 312. A flat head 311 is provided at the end of the main cathode needle 31, and a connection hole 312 is provided on the flat head 311. A threaded hole 211 is provided on the main base 21. The threaded hole 211 is docked with the connection hole 312, and the connection hole 312 and the threaded hole 211 are connected by a bolt, thereby ensuring that the flat head 311 of the main cathode needle 31 can be stably connected to the main base 21.

[0032] As Figure 5 shown in the figure, a limiting hole 27 is provided on the fixed base 2, and the cathode needle is in clearance fit with the limiting hole 27. A limiting hole 27 is provided on the fixed base 2, and the limiting hole 27 can be connected to the cathode needle. Through the clearance fit between the limiting hole 27 and the cathode needle, the limiting effect of the cathode needle can be ensured, and the fixing stability of the cathode needle can be ensured.

[0033] As Figure 7 shown in the figure, a connection screw hole 313 is provided on the main cathode needle 31, a connection screw rod 321 is provided on the auxiliary cathode needle 32, the connection screw hole 313 is in threaded connection with the connection screw rod 321, and the axial direction of the connection screw hole 313 is the same as the axial direction of the corresponding connected auxiliary cathode needle 32. A connection screw hole 313 is provided on the main cathode needle 31. First, the main cathode needle 31 is installed, and the main cathode needle 31 is set as the main cathode needle structure. Therefore, setting the connection screw hole 313 on the main cathode needle 31 can facilitate the subsequent docking connection between the auxiliary cathode needle 32 and the main cathode needle 31.

[0034] Embodiment 2: As Figure 8 、 9 shown in the figure, an angle adjusting member 5 is provided on the fixed base 2. The angle adjusting member 5 includes a fixed main body 51, a clamp 52 is provided on the fixed main body 51, a connecting rod 28 is rotatably connected in the clamp 52, a plurality of limiting holes 27 are provided in the connecting rod 28, and the cathode needle is snap-connected in the limiting holes 27. An angle adjusting member 5 is provided on the fixed base 2. The angle adjusting member 5 can adjust the angle of the cathode needle. When the angle of the polishing hole 11 in the anode workpiece 1 is not set at a conventional angle, the angle of the cathode needle can be adjusted, so that the axis of the cathode needle can be parallel to the axis of the polishing hole 11; specifically, the angle adjusting member 5 includes a fixed main body 51 and a clamp 52. The clamp 52 is provided on the fixed main body 51. The clamp 52 can connect the connecting rod 28, and the connecting rod 28 can rotate in the clamp 52, so that the angle of the limiting holes 27 on the connecting rod 28 can be changed. Therefore, when the cathode needle is connected to the limiting holes 27, the angle can be changed, thereby improving the angle adaptability of the cathode needle.

[0035] As Figure 8 , 9 shown, the fixed body 51 includes a body seat 511 connected to the anode workpiece 1. A distance-adjusting disc 512 is rotatably connected to the body seat 511. A clamp 52 is arranged on the distance-adjusting disc 512. The clamp 52 and the connecting rod 28 are eccentrically arranged relative to the center of the rotation axis of the distance-adjusting disc 512. The fixed body 51 includes a body seat 511 and a distance-adjusting disc 512. The body seat 511 is connected to the anode workpiece 1, and the body seat 511 and the anode workpiece 1 are kept relatively fixed. The distance-adjusting disc 512 is rotatably connected to the body seat 511, and at the same time, the clamp 52 is arranged on the distance-adjusting disc 512. The setting position of the clamp 52 is eccentrically arranged relative to the center of the rotation axis of the distance-adjusting disc 512. Therefore, during the rotation of the distance-adjusting disc 512, the center position of the clamp 52 will change in the transverse direction, thereby realizing the adjustment of the center position of the clamp 52. Thus, when the connection position between the fixed body 51 and the anode workpiece 1 remains unchanged, the relative position and relative angle of the connecting rod 28 can be simultaneously changed by rotating the distance-adjusting disc 512 and the connecting rod 28 in the clamp 52, avoiding the situation that when the position of the body seat 511 remains fixed and the angle of the connecting rod 28 is adjusted by rotation, the limiting hole 27 in the connecting rod 28 cannot be aligned with the inclined polishing hole 11. Therefore, at this time, by rotating the distance-adjusting disc 512, the position of the connecting rod 28 can be displaced, so that the orifice of the limiting hole 27 is aligned with the orifice of the polishing hole 11, thereby improving the flexibility of angle adjustment and avoiding being affected by the connection position between the anode workpiece 1 and the body seat 511.

[0036] As Figure 8 , 9 shown, the clamp 52 includes an adjusting hole 521 rotatably connected to the connecting rod 28. The clamp 52 includes a reduced-edge plate 522 surrounding the adjusting hole 521. A locking member 53 is arranged on the reduced-edge plate 522. The adjusting hole 521 in the clamp 52 is used for rotatably connecting the connecting rod 28. A reduced-edge plate 522 is arranged on the clamp 52, and the reduced-edge plates 522 are respectively arranged on both sides of the adjusting hole 521. By moving the two reduced-edge plates 522 closer to each other, the aperture of the adjusting hole 521 is reduced, thereby realizing the locking of the connecting rod 28. When the two reduced-edge plates 522 move away from each other, the aperture of the adjusting hole 521 can be enlarged, and then the connecting rod 28 can rotate, and the angle orientation of the limiting hole 27 can be adjusted. In this embodiment, the locking member 53 is a bolt-nut connecting member, which is convenient for adjustment and ensures the stability of locking at the same time.

[0037] As Figure 1 , 2As shown in Figures 3, 4, 5, 6, and 7, in addition to the above structural features, this embodiment further includes an anode workpiece 1. There are polishing holes 11 on the anode workpiece 1. The polishing holes 11 include a number of main polishing holes 111 and auxiliary polishing holes 112, and the main polishing holes 111 and the auxiliary polishing holes 112 are communicated. A fixed base 2 is connected to the anode workpiece 1. A cathode needle is provided on the fixed base 2. The fixed base 2 includes a main base 21 and a sub-base 22. A number of main cathode needles 31 are provided on the main base 21. The anode workpiece 1 is connected to the sub-base 22, and a number of sub-cathode needles 32 are connected to the sub-base 22. The main cathode needles 31 and the sub-cathode needles 32 are threadedly connected at the junction. The diameter of the cathode needle is smaller than the diameter of the polishing hole 11. The fixed base 2 includes a connecting block 23 and a mounting plate 24. The connecting block 23 is connected to the anode workpiece 1, and the mounting plate is connected to the cathode needle. The mounting plate 24 and the connecting block 23 are arranged in an "L" shape, and there is a flow gap 4 between the mounting plate 24 and the anode workpiece 1. The flow gap 4 is communicated with the polishing hole 11. The fixed base 2 includes a number of fixing positions 25, and the cathode needle is arranged on each fixing position 25. A conductive plate 26 is connected to the fixed base 2, and the conductive plate 26 is connected to each fixing position 25. The conductive plate 26 is arranged between the cathode needle and the fixing position 25. A flat head 311 is provided at the end of the main cathode needle 31. A threaded hole 211 is provided on the main base 21. A connecting hole 312 is provided on the flat head 311, and a bolt is connected between the threaded hole 211 and the connecting hole 312. A limiting hole 27 is provided on the fixed base 2, and the cathode needle is in clearance fit with the limiting hole 27. A connecting screw hole 313 is provided on the main cathode needle 31, and a connecting screw 321 is provided on the sub-cathode needle 32. The connecting screw hole 313 and the connecting screw 321 are threadedly connected, and the axial direction of the connecting screw hole 313 is the same as the axial direction of the corresponding connected sub-cathode needle 32.

[0038] The anode workpiece 1 in this application is provided with a plurality of polishing holes 11. Among them, the polishing holes 11 include polishing main holes 111 and polishing auxiliary holes 112 with various different specifications and dimensions. The size structures of the polishing main holes 111 and the polishing auxiliary holes 112 are different. The definitions of the polishing main holes 111 and the polishing auxiliary holes 112 can be distinguished according to the actual situation, and can be defined according to the depth or length of the polishing holes 11. The numbers of the polishing main holes 111 and the polishing auxiliary holes 112 can also be set to be multiple. The cathode needles arranged on the fixed base 2 can penetrate into the polishing holes 11, so as to realize uniform electrolysis in the polishing holes 11. The main cathode needle 31 is connected to the polishing main hole 111, and the auxiliary cathode needle 32 is connected to the polishing auxiliary hole 112. Since there are differences in the installation positions of the polishing main holes 111 and the polishing auxiliary holes 112, the fixed base 2 also needs to be correspondingly modified. The fixed base 2 can be connected to the anode workpiece 1 for fixation. At corresponding different positions, the fixed base 2 is divided into a main base 21 and an auxiliary base 22. The main cathode needle 31 is connected to the main base 21, and the auxiliary cathode needle 32 is connected to the auxiliary base 22. At the same time, the connection part between the main cathode needle 31 and the auxiliary cathode needle 32 is a threaded connection. That is, a threaded hole 211 or a threaded rod is provided on the main cathode needle 31 or the auxiliary cathode needle 32, and a corresponding threaded rod or threaded hole 211 is provided on the other auxiliary cathode needle 32 and the main cathode needle 31. After the auxiliary cathode needle 32 and the main cathode needle 31 are butted, the two can be threadedly connected through the threaded structure. Therefore, the main cathode needle 31 and the auxiliary cathode needle 32 can be mutually limited and constrained, and the reliable connection of the main base 21 and the auxiliary base 22 is associated, so that both ends of the cathode needle can be limited and fixed, further improving the placement stability of each cathode needle in the polishing hole 11 and avoiding the situation that only one end of the cathode needle is fixed and the other end deflects and droops due to the gravity effect.

[0039] The diameter size of the cathode needle is set to be smaller than the diameter size of the polishing hole 11. The diameter size of the main cathode needle 31 is smaller than the diameter size of the polishing main hole 111, and the diameter size of the auxiliary cathode needle 32 is smaller than the diameter size of the polishing auxiliary hole 112. Thus, there is a certain gap between the cathode needle and the polishing hole 11, so that the electrolyte can flow into the interior of the polishing hole 11 from this gap, thereby ensuring the uniformity of electrolysis and the smooth flow of the electrolyte.

[0040] The fixed base 2 includes a connecting block 23 and a mounting plate. The connecting block 23 is connected to the anode workpiece 1, and the connection methods include but are not limited to bolt connection, plug connection, and snap connection. The mounting plate is connected to the cathode needle, and the connecting block 23 is not connected to the cathode needle. The connecting block 23 and the mounting plate are arranged in an "L" shape. Therefore, during the connection process, after the connecting block 23 is connected to the anode workpiece 1, the mounting plate will not be connected to the anode workpiece 1, resulting in a flow gap 4 between the mounting plate and the anode workpiece 1, which can allow the electrolyte to flow into the polishing hole 11 and ensure the uniform fluidity of the electrolyte.

[0041] The fixed base 2 is provided with fixing positions 25, and each fixing position 25 is used to connect the cathode needle. A conductive plate 26 is connected to the fixed base 2. The material of the conductive plate 26 is titanium, and the material of the cathode needle is tungsten alloy. The material of the fixed base 2 is bakelite. Tungsten alloy has good electrical conductivity and thermal conductivity, and its high hardness makes it not easily deformed. It is also suitable for the electrolytic polishing bath solution with good corrosion resistance to ensure its electrolytic polishing effect. Titanium alloy also has excellent corrosion resistance, and its fatigue resistance, mechanical strength, and ductility are outstanding and not easily broken. This material also avoids releasing heavy metals or harmful substances to affect the bath solution. Finally, bakelite has excellent resistance to acids, including its pressure resistance, bending resistance, heat resistance, and impact strength, etc. It can easily withstand heavy pressure and bending force and is not easily damaged. By connecting each fixing position 25 through the conductive plate 26, the electrical conductivity connection effect of each cathode needle can be ensured.

[0042] The end of the main cathode needle 31 is provided with a flat head 311, and a connection hole 312 is provided on the flat head 311. A threaded hole 211 is provided on the main base 21, and the threaded hole 211 is docked with the connection hole 312. The connection hole 312 and the threaded hole 211 are connected by bolts, so as to ensure that the flat head 311 of the main cathode needle 31 can be stably connected to the main base 21.

[0043] The fixed base 2 is provided with a limiting hole 27, which can be connected to the cathode needle. Through the clearance fit between the limiting hole 27 and the cathode needle, the limiting effect of the cathode needle can be ensured, and the fixing stability of the cathode needle can be guaranteed.

[0044] A connection threaded hole 313 is provided on the main cathode needle 31. First, the main cathode needle 31 is installed, and the main cathode needle 31 is set as the main cathode needle structure. Therefore, setting the connection threaded hole 313 on the main cathode needle 31 can make it more convenient for the subsequent docking connection between the secondary cathode needle 32 and the main cathode needle 31.

Claims

1. An electrolytic polishing device for deep holes of a vacuum product, comprising an anode workpiece, a polishing hole on the anode workpiece, the polishing hole including a plurality of main polishing holes and auxiliary polishing holes, the main polishing holes and the auxiliary polishing holes being communicated, characterized in that, A fixed base is connected to the anode workpiece, and a cathode needle is arranged on the fixed base. The fixed base includes a main base and a sub-base. A plurality of main cathode needles are arranged on the main base. The anode workpiece is connected to the sub-base, and a plurality of sub-cathode needles are connected to the sub-base. The main cathode needles and the sub-cathode needles are threadedly connected at the junction.

2. The electrolytic polishing device for deep holes of a vacuum product according to claim 1, wherein The diameter of the cathode needle is smaller than the diameter of the polishing hole.

3. An electrolytic polishing device for deep holes of a vacuum product according to claim 1, characterized in that, The fixed base includes a connecting block and a mounting plate. The mounting plate is connected to the cathode needle. The connecting block is connected to the anode workpiece. The mounting plate and the connecting block are arranged in an "L" shape. There is a flow gap between the mounting plate and the anode workpiece, and the flow gap communicates with the polishing hole.

4. An electrolytic polishing device for deep holes of a vacuum product according to claim 1, characterized in that, The fixed base includes a plurality of fixing positions, and the cathode needles are arranged on each fixing position. A conductive plate is connected to the fixed base, and the conductive plate is connected to each fixing position. The conductive plate is arranged between the cathode needle and the fixing position.

5. An electrolytic polishing device for deep holes of a vacuum product according to claim 1, characterized in that, A flat head is arranged at the end of the main cathode needle. A threaded hole is arranged on the main base. A connecting hole is arranged on the flat head, and a bolt is connected between the threaded hole and the connecting hole.

6. An electrolytic polishing device for deep holes of a vacuum product according to claim 1, characterized in that, A limiting hole is arranged on the fixed base, and the cathode needle is in clearance fit with the limiting hole.

7. An electrolytic polishing device for deep holes of a vacuum product according to claim 1, characterized in that, A connecting screw hole is arranged on the main cathode needle, and a connecting screw rod is arranged on the sub-cathode needle. The connecting screw hole and the connecting screw rod are threadedly connected, and the axial direction of the connecting screw hole is the same as the axial direction of the corresponding connected sub-cathode needle.

8. An electrolytic polishing device for deep holes of a vacuum product according to any one of claims 1-7, characterized in that, An angle adjusting member is arranged on the fixed base. The angle adjusting member includes a fixed main body. A clamp is arranged on the fixed main body. A connecting rod is rotatably connected in the clamp. A plurality of limiting holes are arranged in the connecting rod, and the cathode needle is snap-fitted in the limiting holes.

9. An electrolytic polishing device for deep holes of a vacuum product according to claim 8, characterized in that, The fixed main body includes a main body seat connected to the anode workpiece. A distance adjusting disc is rotatably connected to the main body seat. A clamp is arranged on the distance adjusting disc, and the clamp and the connecting rod are eccentrically arranged relative to the center of the axis of the distance adjusting disc.

10. An electrolytic polishing device for deep holes of a vacuum product according to claim 8, characterized in that, The clamp includes an adjusting hole rotatably connected to the connecting rod. The clamp includes a shrinking edge plate surrounding the adjusting hole, and a locking member is arranged on the shrinking edge plate.

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