CN211101989U - Titanium alloy horizontal type electrolytic machining anode conducting device - Google Patents
Titanium alloy horizontal type electrolytic machining anode conducting device Download PDFInfo
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- CN211101989U CN211101989U CN201921387247.8U CN201921387247U CN211101989U CN 211101989 U CN211101989 U CN 211101989U CN 201921387247 U CN201921387247 U CN 201921387247U CN 211101989 U CN211101989 U CN 211101989U
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Abstract
The utility model relates to a titanium alloy horizontal type electrolytic machining anode conductive device, which solves the problems that the contact area of the anode conductive device and a workpiece to be machined in the existing electrolytic machining is small, the anode conductive device has no axial positioning and poor adaptability, and can not meet the electrolytic machining requirement of a titanium alloy part, has good conductive performance, uniform and stable electric field distribution, and can meet the electrolytic machining requirement; the parts are completely wrapped, so that the contact area of the parts is ensured, the parts do not need to be produced and manufactured again, and the economy is good; the axial displacement that probably produces at the course of working body pipe has been avoided, has reduced the rejection rate, has protected the tool electrode simultaneously.
Description
Technical Field
The utility model relates to an anode conductive device, in particular to a titanium alloy horizontal type electrolytic machining anode conductive device.
Background
The titanium alloy is widely applied to the aerospace field due to the excellent characteristics of small density, high specific strength, corrosion resistance and the like, and in recent years, the titanium alloy is gradually applied to the field of weapons, particularly to light weapons, i.e. team portable weapons, and particularly to parts such as barrels, barrels and the like. The titanium alloy has the defects that a cutter is seriously abraded in the cutting process due to low thermal conductivity, low deformation coefficient, high chemical activity and the like, the phenomenon of serious cutter adhesion is easily generated, and particularly, in the processing of a barrel rifling, a broach is seriously abraded, the edge is easily broken, and the production cost is high; meanwhile, the roughness of the rifling obtained by processing is poor, and the part is deformed greatly due to heat accumulation. The electrolytic machining has the advantages of no tool cathode loss, high production efficiency, good surface quality, no residual stress and the like, and provides an applicable and effective machining method for the machining of the titanium alloy.
When the rifling of the titanium alloy barrel is processed by electrolysis, the barrel is taken as a processed part and is taken as an anode, and in view of the processing principle, an anode conducting device is needed to ensure that electric energy can be transmitted and loaded on the barrel, thereby being convenient for realizing the process of electrochemical anode dissolution. Meanwhile, the titanium element is active in chemical property and high in overpotential which is about-1.75V, and is extremely sensitive to an electric field in the electrolytic machining process, the electric field needs to be uniformly and stably distributed in the machining process, and the overpotential of the iron element is only-0.44V, so that the titanium alloy anode conducting device is different from a conventional anode conducting device.
According to the prior art, the design [ J ] of a horizontal type electrolytic machining tool of Lebo, Wang Chongchang, Van planting vertical and Yanghai silk [ mechanical design and manufacture ], 2016(4) and 118-:
① because the conductive contact area of the conductive device and the titanium alloy barrel is small, the maximum contact area is less than 40% according to the length of the part, when processing, the electric field distribution is uneven and stable, after processing, pockmarks, pitting and pits appear on the inner surface of the barrel rifling, and the inner surface has orange peel-shaped flow lines, the surface roughness is poor and less than Ra12.5, which is far from reaching the design and use index;
② the upper and lower copper shoes in the device are lengthened, on one hand, the copper shoes need to be padded with copper sheets after being worn, and the problem of small conductive contact area still exists, on the other hand, the effective working stroke of the machine tool is greatly shortened after the upper and lower copper shoes are lengthened because the parts are sometimes longer, about 2 m.
③ the device has no limit and positioning function on the barrel in the axial direction, when the clearance between the cathode and the inner hole of the barrel is small and the friction is large, the barrel may generate axial displacement in the processing process, thereby causing the lead error of the rifling of the barrel and the scrapping of the barrel, and even causing the contact and welding between the cathode and the barrel to cause the scrapping of both the cathode and the barrel.
Disclosure of Invention
The utility model provides a technical problem be: the invention provides a titanium alloy horizontal type electrochemical machining anode conducting device, which aims to solve the problems that the contact area between the anode conducting device and a workpiece to be machined in the existing electrochemical machining is small, the axial positioning is not available, the adaptability is poor, and the electrochemical machining requirements of a titanium alloy part cannot be met.
The technical scheme of the utility model is that: a titanium alloy horizontal type electrolytic machining anode conducting device comprises a conducting tile and a plurality of clamping components; the whole conductive tile is a hollow cylindrical body with openings at two ends, blind grooves are formed in the side wall, two ends of each blind groove are respectively formed at two ends of the conductive tile, and the axis of each blind groove is parallel to the axis of the conductive tile; a plurality of threaded holes are uniformly distributed at one end of the conductive tile in the circumferential direction; the clamping assemblies comprise an upper clamping seat and a lower clamping seat, wherein the upper clamping seat and the lower clamping seat have the same structure, are overall in a convex shape, and have two-step outer walls; a semicircular groove is formed in the large-diameter end corresponding to the small-diameter end, and the axis of the clamping seat passes through the circle center of the semicircular groove; when the upper clamping seat and the lower clamping seat are fixedly connected in a butt joint mode, the two semicircular grooves are in butt joint to form a circular through hole; the conductive tile is positioned in the circular through hole; the columnar part to be processed is positioned in the conductive tile; the columnar part to be processed is in full contact with the conductive tile; the axis of the clamping assembly, the axis of the columnar part to be processed and the axis of the conductive bush are superposed with each other.
The utility model discloses a further technical scheme is: the clamping assemblies are at least two groups and are uniformly distributed on the conductive tile, and the two ends of the large-diameter end of the upper clamping seat and the two ends of the large-diameter end of the lower clamping seat are fixedly connected through fastening screws respectively.
The utility model discloses a further technical scheme is: the conductive tile and the to-be-processed columnar part are tightly pushed through the jackscrew, and axial relative movement of the conductive tile and the to-be-processed columnar part is limited.
The utility model discloses a further technical scheme is: the conducting tile is also provided with a through groove on the side wall, wherein two ends of the through groove are respectively opened to two ends of the conducting tile, the blind groove and the through groove are respectively symmetrically opened on the side wall at the semicircle of the conducting tile, and the axes are parallel to the axis of the conducting tile.
The utility model discloses a further technical scheme is: after the conductive tile is used for a long time, when the inner hole is locally worn to increase the size of the inner hole, the through groove enables the conductive tile to be easily subjected to local micro-deformation in the radial direction under the clamping of the upper clamping seat and the lower clamping seat, so that the conductive tile is ensured to be in full contact with and attached to the columnar part to be processed again.
The utility model discloses a further technical scheme is: the columnar part to be processed is made of a titanium alloy material.
Effects of the invention
The technical effects of the utility model reside in that: compared with the prior art, the utility model has the advantages as follows:
① the conductive tile 1 is in full contact with the barrel, the contact area is large, the contact area is not less than 95% according to the length of the part, the contact area is improved by 137%, the conductivity is good, the electric field is distributed uniformly and stably, and the electrolytic machining requirement can be met;
② when the inner hole of the conductive tile 1 is partially worn after working for a long time, the conductive tile 1 is slightly deformed under the clamping of the upper clamping seat 2 and the lower clamping seat 3, so that the part is completely wrapped, the contact area is ensured, the re-production and the manufacture are not needed, and the economy is good;
③ jackscrew 6 fixes the relative position of conductive tile 1 and barrel, avoids the axial displacement of barrel in the processing course, reduces the rejection rate, and protects the tool electrode.
Drawings
FIG. 1 is a structural view and an assembly view of the titanium alloy horizontal type electrolytic machining anode conductive device
FIG. 2 is a detail view of the conductive tile 1 of FIG. 1
FIG. 3 is a cross-sectional view of FIG. 2
FIG. 4 is a sectional view taken along line A-A of FIG. 2
FIG. 5 is a detail view of the upper and lower clamping shoes of FIG. 1
Figure 6 is a detail view of the barrel of figure 1
In the figure, 1-conducting tile, 2-upper clamping seat, 3-lower clamping seat, 4-fastening screw, 5-fastening nut, 6-jackscrew and 7-barrel.
Detailed Description
Referring to fig. 1 to 6, in order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1-6, taking the processing of a gun barrel as an example, the utility model relates to a titanium alloy horizontal type electrolytic machining anode conducting device, which comprises a conducting tile 1, an upper clamping seat 2, a lower clamping seat 3, a fastening screw 4, a fastening nut 5 and a jackscrew 6, wherein the cross section of the conducting tile 1 is C-shaped, the size of an inner hole of the conducting tile is 0.05-0.10 mm larger than the size of an outer circle of the barrel 7, so that the barrel assembly is facilitated, a groove is formed in one side of the conducting tile 1 along the axial direction, a non-through groove is formed in the other side of the conducting tile 1, so that the conducting tile 1 can generate local deformation in the radial direction, the pipe can be ensured to be attached to the barrel, the length of the conducting tile 1 is determined according to the length of parts, meanwhile, 4 × M8 threaded holes are uniformly distributed in the circumferential direction on the side wall of one end of the conducting tile 1, the conducting tile 1 and the barrel are fixed in relative positions through the jackscrew 6, so that the barrel can avoid axial displacement during the processing of the barrel, in the embodiment, the clamping components are three groups, each group comprises an upper clamping seat 2 and a lower clamping seat, the conducting tile 2, the conducting tile seat is convenient to be attached to the upper clamping seat, the lower conducting tile, the conducting seat is connected with the upper conducting seat through a semicircular axis 2, the upper conducting seat, the lower seat, the conducting seat is connected with the conducting tile, the upper conducting seat, the lower seat, the conducting tile, the.
The conductive tile 1 is made of brass alloy H62, the size of an inner hole is 0.05-0.10 mm larger than the size of an excircle of a barrel, the barrel is convenient to assemble, the roughness of the inner surface is Ra1.6, meanwhile, in the machining process, in order to avoid deformation of the conductive tile 1, stress relief tempering is carried out after boring, machining residual stress is eliminated, and then blind grooves and through grooves on two sides of the conductive tile are machined.
The upper clamping seat 2 and the lower clamping seat 3 are made of 40Cr, and are integrally heat-treated and quenched to 37-42 HRC, so that the hardness and the inner surface wear resistance of the clamping seat are enhanced.
The fastening screw 4 is a stainless steel standard screw, and the specification of the fastening screw is M12 × 80.
The fastening nut 5 is a stainless steel standard nut, and the specification of the fastening nut is M12.
The jackscrew 6 is a stainless steel standard jackscrew with the specification of M8 × 12.
The installation steps and the working process are as follows:
uniformly distributing three groups of lower clamping seats on a working table surface according to the length of a conductive tile 1, inserting a barrel 7 into an inner hole of the conductive tile 1, placing a combined body of the barrel in inner holes of the three groups of lower clamping seats 3, placing upper clamping seats 2 on the conductive tile 1 in a one-to-one correspondence manner at the positions of the lower clamping seats 3, respectively penetrating fastening screws 4 through upper through holes of the upper clamping seats 2 and the lower clamping seats, fixedly connecting the upper clamping seats 2 with the lower clamping seats 3 by using fastening nuts 5, screwing jackscrews 6 into M8 threaded holes on the conductive tile 1, and jacking the barrel 7; the assembly of the titanium alloy anode conductive device of the utility model is completed;
the conductive tile 1 is in full contact with the barrel 7, so that the contact area of the conductive tile and the barrel is remarkably increased, the contact area is larger than 95%, the distribution of a processing electric field is uniform and stable, and the electrolytic processing requirement of the titanium alloy can be met; meanwhile, the jackscrew 6 limits the axial relative movement of the conductive tile 1 and the barrel 7, avoids the axial movement of the barrel 7 possibly generated in the processing, reduces the rejection rate and protects the tool electrode.
After the conductive tile 1 is used for a long time, the inner hole is partially abraded to enable the size of the inner hole to be slightly larger, and due to the fact that a blind groove and a through groove are machined in the side wall of the conductive tile along the axis, the conductive tile is easy to generate local micro-deformation in the radial direction under the clamping of the upper clamping seat 2 and the lower clamping seat 3, the conductive tile 1 is guaranteed to be in full contact with and attached to the barrel 7 again, the electric field is distributed uniformly and stably, and the requirements of titanium alloy electrolytic machining can be met.
Claims (5)
1. The titanium alloy horizontal type electrolytic machining anode conducting device is characterized by comprising a conducting tile (1) and a plurality of clamping components; the whole conductive tile (1) is a hollow cylindrical body with two open ends, blind grooves are formed in the side wall, the two ends of each blind groove are respectively formed at the two ends of the conductive tile (1), and the axis of each blind groove is parallel to the axis of the conductive tile (1); one end of the conductive tile (1) is circumferentially and uniformly provided with a plurality of threaded holes; the clamping assemblies comprise an upper clamping seat (2) and a lower clamping seat (3), wherein the upper clamping seat (2) and the lower clamping seat (3) have the same structure, are overall in a convex shape, and have a two-step outer wall; a semicircular groove is formed in the large-diameter end corresponding to the small-diameter end, and the axis of the clamping seat passes through the circle center of the semicircular groove; when the upper clamping seat (2) and the lower clamping seat (3) are fixedly connected in a butt joint mode, the two semicircular grooves are in butt joint to form a circular through hole; the conductive tile (1) is positioned in the circular through hole, the to-be-processed columnar part is positioned in the conductive tile (1), and the to-be-processed columnar part is in full contact with the conductive tile (1); the axis of the clamping assembly, the axis of the columnar part to be processed and the axis of the conductive tile (1) are superposed with each other.
2. The titanium alloy horizontal type electrolytic machining anode conducting device according to claim 1, wherein at least two groups of the plurality of clamping assemblies are uniformly distributed on the conducting tile (1), and two ends of the large-diameter end of the upper clamping seat (2) and two ends of the large-diameter end of the lower clamping seat (3) are fixedly connected through fastening screws (4).
3. The horizontal type electrolytic machining anode conducting device for titanium alloy according to claim 1, wherein the conducting tile (1) and the columnar part to be machined tightly push the columnar part to be machined through the jackscrew (5), so that the axial relative movement of the conducting tile (1) and the columnar part to be machined is limited.
4. The anode conducting device for the horizontal type electrolytic machining of titanium alloy according to claim 1, wherein the conducting tile (1) is further provided with a through groove on the side wall, two ends of the through groove are respectively opened to two ends of the conducting tile (1), the blind groove and the through groove are respectively symmetrically arranged on the side wall of the conducting tile (1) at the semicircle, and the axes of the blind groove and the through groove are parallel to each other with the axis of the conducting tile (1).
5. The horizontal type electrochemical machining anode conducting device for titanium alloy as claimed in claim 1, wherein the columnar part to be machined is made of titanium alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921387247.8U CN211101989U (en) | 2019-08-26 | 2019-08-26 | Titanium alloy horizontal type electrolytic machining anode conducting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921387247.8U CN211101989U (en) | 2019-08-26 | 2019-08-26 | Titanium alloy horizontal type electrolytic machining anode conducting device |
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| CN211101989U true CN211101989U (en) | 2020-07-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799757A (en) * | 2022-05-05 | 2022-07-29 | 江苏江航智飞机发动机部件研究院有限公司 | Precise electrolytic machining process for titanium alloy pipe fitting |
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2019
- 2019-08-26 CN CN201921387247.8U patent/CN211101989U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799757A (en) * | 2022-05-05 | 2022-07-29 | 江苏江航智飞机发动机部件研究院有限公司 | Precise electrolytic machining process for titanium alloy pipe fitting |
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