CN203804361U - Electrolytic deburring machine tool - Google Patents
Electrolytic deburring machine tool Download PDFInfo
- Publication number
- CN203804361U CN203804361U CN201420140660.5U CN201420140660U CN203804361U CN 203804361 U CN203804361 U CN 203804361U CN 201420140660 U CN201420140660 U CN 201420140660U CN 203804361 U CN203804361 U CN 203804361U
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- electrolysis
- lathe
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- electrolytic
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Abstract
The utility model discloses an electrolytic deburring machine tool and relates to an electrolytic machine tool. The problems of low working efficiency, long working hours and complicated operations during the deburring process of crossed arrayed hole burrs generated in a drilling hole when drilling processing is required to be performed in circumferential direction during manufacturing of shaft parts in the prior art are solved. Three jaw chucks are made of conductive materials; a machine tool base plate and three jaw chuck bases are made of insulation materials; the machine tool base plate is fixed to an electrolytic workbench; the electrolytic workbench is fixed on a workbench support; multiple electrolyte discharge holes are formed in the electrolytic workbench; an electrolytic collection groove is formed in the workbench support; the positive pole of an electrolytic power supply is connected to the three jaw chucks; the negative pole of the electrolytic power supply is connected to an electrode; a clamp body, the electrolytic power supply, an electrolytic machining part and a water pump assembly are arranged in a shell of the machine tool. The electrolytic deburring machine tool is used for removing the burrs of crossed arrayed holes of a screw shaft in an electrolytic manner.
Description
Technical field
The utility model relates to a kind of electrolysis machine tool, is specifically related to a kind of lathe of electrolysis removal steering gear screw shaft circular hole burr.
Background technology
In the steering gear of car class, there is empty class part in a collection of axle class, need be at circumferencial direction Drilling operation when axial workpiece is manufactured, the little hole bur of crossed array in can producing in boring, because interior hole dimension is less, burr is difficult for removing, and screw shaft is wherein a kind of just.The existence of burr can affect precision, working life and the surface quality etc. of part.Therefore, essential to the removal of burr.But in prior art, remove crossed array aperture burr inefficiency in screw shaft, longevity of service and complex operation, and the quality precision of deburring is low.
Utility model content
The purpose of this utility model is to provide a kind of electrochemical deburring lathe, need be at circumferencial direction Drilling operation when solving in prior art that axial workpiece is manufactured, inefficiency when crossed array aperture burr is removed in can producing in boring, longevity of service and complex operation, and the low problem of quality precision of deburring.
The utility model is to address the above problem the technical scheme of taking to be: described electrochemical deburring lathe of the present utility model comprises lathe shell, clamp body, water pump component, electrolysis power and Electrolyzed Processing parts,
Described fixture body comprises scroll chuck, lathe seat board, three grab chuck base, crossbeam, positioning mounting, column, fixed cover, three groups of electrode securing supports and multiple the first connector, scroll chuck is the scroll chuck that conductive material is made, lathe seat board and three is grabbed chuck base and is made by insulating materials, crossbeam is rectangular slab, positioning mounting and column are cylinder, one end of crossbeam is processed with the first through hole, the other end of crossbeam is processed with the second through hole, positioning mounting is processed with the first boss from top to bottom successively, the 5th boss, the second boss, the 3rd boss and the 4th boss, the center of the first boss to the four boss is processed with third through-hole vertically, the bottom of the 4th boss is uniform is processed with three arc lobes, the 4th boss top is processed with semi-circular ring, the 3rd boss is arranged in the first through hole, and the second boss is arranged on the upper surface of crossbeam, fixed cover is fixedly mounted in the second through hole, the bottom face of scroll chuck is fixedly mounted on three by multiple the first connectors and grabs on chuck base, three lower surfaces of grabbing chuck base are fixedly mounted on lathe seat board, each claw of scroll chuck is installed with one group of electrode securing supports, the top of column is fixedly mounted in fixed cover, the bottom of column is fixedly mounted on lathe seat board, and positioning mounting is arranged on the top of scroll chuck, the center line of third through-hole overlaps with the center line of scroll chuck,
Electrolyzed Processing parts comprise electrolysis workbench, the support of table and electrolyte feeder, lathe seat board is fixed on electrolysis workbench, and electrolysis workbench is fixed on the support of table, offers several electrolyte taps on electrolysis workbench, electrolyte feeder is arranged in the support of table
The positive pole of electrolysis power is connected with scroll chuck, and the negative pole of electrolysis power is connected with electrode,
Water pump component comprises water pump and motor, and the clutch end of motor is connected with the power intake of water pump, and the water source input of water pump is communicated with electrolyte feeder, and the water source output of water pump is connected with third through-hole,
Clamp body, electrolysis power, Electrolyzed Processing parts and water pump component are all arranged in lathe shell.
The utility model compared with prior art has following beneficial effect: when the crossed array aperture burr that produces when the circumferencial direction Drilling operation while axial workpiece being manufactured by the utility model, carry out deburring by electrolyte and electrode, improve the precision of the quality of deburring, and use the utility model to improve the process velocity of deburring, make operating efficiency improve 20%-30%, the utility model also has simple in structure, uses simply, feature conveniently; Multiple nut 2-9 make fixed cover 2-8 axial restraint firm, thereby in effective guarantee process, steering gear screw shaft round orifices orientation is accurate; The highly versatile of key 2-15, and manufacture, easy for installation, meet the fixing needs of circumference between column 2-7 and fixed cover 2-8;
Because electrolyte feeder 5-4 below is provided with electrolytic cell base 5-5 and universal wheel 5-5-1, in the time of cleaning electrolyte feeder 5-4, electrolytic cell base 5-5 and universal wheel 5-5-1 are convenient to shifting out and putting back to of electrolyte feeder 5-4; Some electrolysis side shield 5-2 prevent that electrolyte from spilling;
Lathe bed housing 1-1 is for the protection of the latter half of water pump component 3-0 and Electrolyzed Processing parts 5-0; electrolysis power 4-0 is arranged in upper cover 1-2; be convenient to the operation to electrolysis power 4-0 in processing; sliding door 1-3 protects electrolyte for Electrolyzed Processing and spills and play protective action, and when door one 1-4 and door two 1-5 are convenient to water pump component 3-0 and Electrolyzed Processing parts 5-0, maintenance is used.
Brief description of the drawings
Fig. 1 is axonometric drawing of the present utility model, Fig. 2 is top view of the present utility model, Fig. 3 is the A-A cutaway view of Fig. 2, Fig. 4 is left view of the present utility model, Fig. 5 is the blast installation diagram of Electrolyzed Processing parts 5-0, Fig. 6 is the overall structure schematic diagram of clamp body 2-0, Fig. 7 is the overall structure top view of clamp body 2-0, Fig. 8 be in Fig. 7 B-B to view, Fig. 9 is the left view of one group of electrode securing supports 2-4, Figure 10 is that in Fig. 9, C-C is to view, and Figure 11 is the front view of positioning mounting 2-6, and Figure 12 is that the master of positioning mounting 2-6 looks cutaway view.
Detailed description of the invention
Detailed description of the invention one: illustrate in conjunction with Fig. 1 to Figure 12, the described electrochemical deburring lathe of present embodiment comprises lathe shell 1-0, clamp body 2-0, water pump component 3-0, electrolysis power 4-0 and Electrolyzed Processing parts 5-0,
Described fixture body 2-0 comprises scroll chuck 2-1, lathe seat board 2-2, three grab chuck base 2-3, crossbeam 2-5, positioning mounting 2-6, column 2-7, fixed cover 2-8, three groups of electrode securing supports 2-4 and multiple the first connector 2-10, scroll chuck 2-1 is the scroll chuck 2-1 that conductive material is made, lathe seat board 2-2 and three grabs chuck base 2-3 and makes by insulating materials, crossbeam 2-5 is rectangular slab, positioning mounting 2-6 and column 2-7 are cylinder, one end of crossbeam 2-5 is processed with the first through hole 2-5-1, the other end of crossbeam 2-5 is processed with the second through hole 2-5-2, positioning mounting 2-6 is processed with the first boss 2-6-1 from top to bottom successively, the 5th boss 2-6-8, the second boss 2-6-2, the 3rd boss 2-6-3 and the 4th boss 2-6-4, the center of the first boss 2-6-1 to the four boss 2-6-4 is processed with third through-hole 2-6-5 vertically, the bottom of the 4th boss 2-6-4 is uniform is processed with three arc lobe 2-6-6, the 4th boss 2-6-4 top is processed with semi-circular ring 2-6-7, the 3rd boss 2-6-3 is arranged in the first through hole 2-5-1, and the second boss 2-6-2 is arranged on the upper surface of crossbeam 2-5, fixed cover 2-8 is fixedly mounted in the second through hole 2-5-2, the bottom face of scroll chuck 2-1 is fixedly mounted on three by multiple the first connector 2-10 and grabs on chuck base 2-3, three lower surfaces of grabbing chuck base 2-3 are fixedly mounted on lathe seat board 2-2, each claw of scroll chuck 2-1 is installed with one group of electrode securing supports 2-4, the top of column 2-7 is fixedly mounted in fixed cover 2-8, the bottom of column 2-7 is fixedly mounted on lathe seat board 2-2, and positioning mounting 2-6 is arranged on the top of scroll chuck 2-1, the center line of third through-hole 2-6-5 overlaps with the center line of scroll chuck 2-1,
Electrolyzed Processing parts 5-0 comprises electrolysis workbench 5-1, support of table 5-3 and electrolyte feeder 5-4, lathe seat board 2-2 is fixed on electrolysis workbench 5-1, electrolysis workbench 5-1 is fixed on support of table 5-3, on electrolysis workbench 5-1, offer several electrolyte taps 5-1-1, electrolyte feeder 5-4 is arranged in support of table 5-3
The positive pole of electrolysis power 4-0 is connected with scroll chuck 2-1, and the negative pole of electrolysis power 4-0 is connected with electrode 2-11,
Water pump component 3-0 comprises water pump 3-1 and motor 3-2, and the clutch end of motor 3-2 is connected with the power intake of water pump 3-1, and the water source input of water pump 3-1 is communicated with electrolyte feeder 5-4, and the water source output of water pump 3-1 is connected with third through-hole 2-6-5,
Clamp body 2-0, electrolysis power 4-0, Electrolyzed Processing parts 5-0 and water pump component 3-0 are all arranged in lathe shell 1-0.
Detailed description of the invention two: in conjunction with Fig. 6 and Figure 10 explanation, every group of electrode securing supports 2-4 of the described clamp body 2-0 of present embodiment comprises electrode 2-11, electrode chuck 2-12, fixed block 2-13 and multiple bolt connection piece 2-14, fixed block 2-13 is the rectangle block that insulating materials is made, one end of fixed block 2-13 is processed with rectangle breach 2-13-1, the other end near fixed block 2-13 is processed with fourth hole 2-13-2, electrode 2-11 is arranged on electrode chuck 2-12, on the sidewall of breach 2-13-1 both sides, be respectively equipped with two bolt connection piece 2-14, and the center line of fourth hole 2-13-2 is vertical with the center line of bolt connection piece 2-14, electrode chuck 2-12 is fixedly mounted in fourth hole 2-13-2, the rectangle breach 2-13-1 of fixed block 2-13 bottom is stuck on a claw of scroll chuck 2-1, and fixed block 2-13 is bolted on the claw that part 2-14 is fixedly mounted on scroll chuck 2-1.Meet design and use requirement.In present embodiment, undocumented technical characterictic is identical with detailed description of the invention one.
Detailed description of the invention three: illustrate in conjunction with Fig. 6 to Fig. 8, the described jig of present embodiment also comprises key 2-15, connects between column 2-7 and fixed cover 2-8 by key 2-15.The highly versatile of key 2-15, and manufacture, easy for installation, meet the fixing needs of circumference between column 2-7 and fixed cover 2-8.In present embodiment, undocumented technical characterictic is identical with detailed description of the invention one or two.
Detailed description of the invention four: illustrate in conjunction with Fig. 6 to Fig. 8, the described jig of present embodiment also comprises multiple nut 2-9, and multiple nut 2-9 are arranged on the top of column 2-7, and fixed cover 2-8 is between multiple nut 2-9.Make fixed cover 2-8 axial restraint firm, thereby in effective guarantee process, steering gear screw shaft round orifices orientation is accurate.In present embodiment, undocumented technical characterictic is identical with detailed description of the invention three.
Detailed description of the invention five: illustrate in conjunction with Fig. 6 to Fig. 8, be processed with external screw thread on the lateral wall of the first boss 2-6-1 of the described clamp body 2-0 of present embodiment, the water source output of water pump 3-1 is connected by described external screw thread with third through-hole 2-6-5.External screw thread uses for the water source output that connects water pump 3-1.In present embodiment, undocumented technical characterictic is identical with detailed description of the invention one.
Detailed description of the invention six: in conjunction with Fig. 5 explanation, the described Electrolyzed Processing parts of present embodiment also comprise electrolyte feeder base 5-5 and some electrolysis side shield 5-2, some electrolysis side shield 5-2 are arranged at electrolysis workbench 5-1 surrounding, electrolyte feeder base 5-5 below surrounding is fixed with several universal wheels 5-5-1, and electrolyte feeder 5-4 is installed on electrolyte feeder base 5-5.Because electrolyte feeder 5-4 below is provided with electrolytic cell base 5-5 and universal wheel 5-5-1, in the time of cleaning electrolyte feeder 5-4, electrolytic cell base 5-5 and universal wheel 5-5-1 are convenient to shifting out and putting back to of electrolyte feeder 5-4; Some electrolysis side shield 5-2 prevent that electrolyte from spilling.In present embodiment, undocumented technical characterictic is identical with detailed description of the invention one.
Detailed description of the invention seven: illustrate in conjunction with Fig. 1 to Fig. 5, the lathe shell 1-0 of present embodiment comprises lathe bed housing 1-1 and upper cover 1-2, support of table 5-3 and water pump component 3-0 are all set in lathe bed housing 1-1, and water pump component 3-0 is arranged at a side of support of table 5-3, upper cover 1-2 is fixed in lathe bed housing 1-1 upper end, clamp body 2-0, some electrolysis side shield 5-2 and electrolysis workbench 5-1 are all arranged at the opposite side in upper cover 1-2, electrolysis power 4-0 is installed on the side in upper cover 1-2, the upper cover 1-2 of electrolysis workbench 5-1 top offers sliding door 1-3, the lathe bed housing 1-1 sidewall corresponding with pump assembly 3-0 is provided with door one 1-4, the sidewall of the lathe bed housing 1-1 corresponding with electrolyte feeder 5-4 is provided with door two 1-5.Lathe bed housing 1-1 is for the protection of the latter half of water pump component 3-0 and Electrolyzed Processing parts 5-0; electrolysis power 4-0 is arranged in upper cover 1-2; be convenient to the operation to electrolysis power 4-0 in processing; sliding door 1-3 protects electrolyte for Electrolyzed Processing and spills and play protective action, and when door one 1-4 and door two 1-5 are convenient to water pump component 3-0 and Electrolyzed Processing parts 5-0, maintenance is used.In present embodiment, undocumented technical characterictic is identical with detailed description of the invention one.
Operation principle
When work, screw shaft to be processed is arranged on positioning mounting 2-6, three arc lobe 2-6-6 are arranged on the madial wall on screw shaft top, screw shaft bottom external screw thread clamps location by scroll chuck 2-1, and two blocks on screw shaft top position by semi-circular ring 2-6-7, respectively the electrode 2-11 of every group of electrode securing supports 2-4 is deep in screw shaft boring to be de-burred, the positive pole of electrolysis power 4-0 is connected with scroll chuck 2-1, the negative pole of electrolysis power 4-0 is connected with electrode 2-11, electrolyte with fine abrasive is flow into electrolyte and fine abrasive in screw shaft by third through-hole 2-6-5, opening electrolysis power 4-0 switch removes the burr in screw shaft boring.
Claims (7)
1. an electrochemical deburring lathe, is characterized in that: described electrochemical deburring lathe comprises lathe shell (1-0), clamp body (2-0), water pump component (3-0), electrolysis power (4-0) and Electrolyzed Processing parts (5-0),
Described fixture body (2-0) comprises scroll chuck (2-1), lathe seat board (2-2), three grab chuck base (2-3), crossbeam (2-5), positioning mounting (2-6), column (2-7), fixed cover (2-8), three groups of electrode securing supports (2-4) and multiple the first connector (2-10), the scroll chuck (2-1) that scroll chuck (2-1) is made for conductive material, lathe seat board (2-2) and three is grabbed chuck base (2-3) and is made by insulating materials, crossbeam (2-5) is rectangular slab, positioning mounting (2-6) and column (2-7) are cylinder, one end of crossbeam (2-5) is processed with the first through hole (2-5-1), the other end of crossbeam (2-5) is processed with the second through hole (2-5-2), positioning mounting (2-6) is processed with the first boss (2-6-1) from top to bottom successively, the 5th boss (2-6-8), the second boss (2-6-2), the 3rd boss (2-6-3) and the 4th boss (2-6-4), the first boss (2-6-1) to the center of the 4th boss (2-6-4) is processed with third through-hole (2-6-5) vertically, uniform three the arc lobes (2-6-6) that are processed with in bottom of the 4th boss (2-6-4), the 4th boss (2-6-4) top is processed with semi-circular ring (2-6-7), the 3rd boss (2-6-3) is arranged in the first through hole (2-5-1), and the second boss (2-6-2) is arranged on the upper surface of crossbeam (2-5), fixed cover (2-8) is fixedly mounted in the second through hole (2-5-2), the bottom face of scroll chuck (2-1) is fixedly mounted on three by multiple the first connectors (2-10) and grabs on chuck base (2-3), three lower surfaces of grabbing chuck base (2-3) are fixedly mounted on lathe seat board (2-2), each claw of scroll chuck (2-1) is installed with one group of electrode securing supports (2-4), the top of column (2-7) is fixedly mounted in fixed cover (2-8), the bottom of column (2-7) is fixedly mounted on lathe seat board (2-2), and positioning mounting (2-6) is arranged on the top of scroll chuck (2-1), the center line of third through-hole (2-6-5) overlaps with the center line of scroll chuck (2-1),
Electrolyzed Processing parts (5-0) comprise electrolysis workbench (5-1), the support of table (5-3) and electrolyte feeder (5-4), lathe seat board (2-2) is fixed on electrolysis workbench (5-1), electrolysis workbench (5-1) is fixed on the support of table (5-3), on electrolysis workbench (5-1), offer several electrolyte taps (5-1-1), electrolyte feeder (5-4) is arranged in the support of table (5-3)
The positive pole of electrolysis power (4-0) is connected with scroll chuck (2-1), and the negative pole of electrolysis power (4-0) is connected with electrode (2-11),
Water pump component (3-0) comprises water pump (3-1) and motor (3-2), the clutch end of motor (3-2) is connected with the power intake of water pump (3-1), the water source input of water pump (3-1) is communicated with electrolyte feeder (5-4), the water source output of water pump (3-1) is connected with third through-hole (2-6-5)
Clamp body (2-0), electrolysis power (4-0), Electrolyzed Processing parts (5-0) and water pump component (3-0) are all arranged in lathe shell (1-0).
2. electrochemical deburring lathe according to claim 1, it is characterized in that: every group of electrode securing supports (2-4) of described clamp body (2-0) comprises electrode (2-11), electrode chuck (2-12), fixed block (2-13) and multiple bolt connection piece (2-14), the rectangle block that fixed block (2-13) is made for insulating materials, one end of fixed block (2-13) is processed with rectangle breach (2-13-1), the other end near fixed block (2-13) is processed with fourth hole (2-13-2), electrode (2-11) is arranged on electrode chuck (2-12), on the sidewall of breach (2-13-1) both sides, be respectively equipped with two bolt connection pieces (2-14), and the center line of fourth hole (2-13-2) is vertical with the center line of bolt connection piece (2-14), electrode chuck (2-12) is fixedly mounted in fourth hole (2-13-2), the rectangle breach (2-13-1) of fixed block (2-13) bottom is stuck on a claw of scroll chuck (2-1), and fixed block (2-13) is bolted on the claw that part (2-14) is fixedly mounted on scroll chuck (2-1).
3. electrochemical deburring lathe according to claim 1 and 2, is characterized in that: described jig also comprises key (2-15), between column (2-7) and fixed cover (2-8), connects by key (2-15).
4. electrochemical deburring lathe according to claim 3, is characterized in that: described jig also comprises multiple nuts (2-9), and multiple nuts (2-9) are arranged on the top of column (2-7), and fixed cover (2-8) is positioned between multiple nuts (2-9).
5. electrochemical deburring lathe according to claim 1, it is characterized in that: on the lateral wall of first boss (2-6-1) of described clamp body (2-0), be processed with external screw thread, the water source output of water pump (3-1) is connected by described external screw thread with third through-hole (2-6-5).
6. electrochemical deburring lathe according to claim 1, it is characterized in that: described Electrolyzed Processing parts also comprise electrolyte feeder base (5-5) and some electrolysis side shields (5-2), some electrolysis side shields (5-2) are arranged at electrolysis workbench (5-1) surrounding, electrolyte feeder base (5-5) below surrounding is fixed with several universal wheels (5-5-1), and electrolyte feeder (5-4) is installed on electrolyte feeder base (5-5).
7. electrochemical deburring lathe according to claim 1, it is characterized in that: lathe shell (1-0) comprises lathe bed housing (1-1) and upper cover (1-2), the support of table (5-3) and water pump component (3-0) are all set in lathe bed housing (1-1), and water pump component (3-0) is arranged at a side of the support of table (5-3), upper cover (1-2) is fixed in lathe bed housing (1-1) upper end, clamp body (2-0), some electrolysis side shields (5-2) and electrolysis workbench (5-1) are all arranged at the opposite side in upper cover (1-2), electrolysis power is installed on the side in upper cover (1-2), the upper cover of electrolysis workbench top offers sliding door (1-3), lathe bed housing (1-1) sidewall corresponding with pump assembly (3-0) is provided with door one (1-4), the sidewall of the lathe bed housing (1-1) corresponding with electrolyte feeder (5-4) is provided with door two (1-5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420140660.5U CN203804361U (en) | 2014-03-26 | 2014-03-26 | Electrolytic deburring machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420140660.5U CN203804361U (en) | 2014-03-26 | 2014-03-26 | Electrolytic deburring machine tool |
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| Publication Number | Publication Date |
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| CN203804361U true CN203804361U (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420140660.5U Expired - Fee Related CN203804361U (en) | 2014-03-26 | 2014-03-26 | Electrolytic deburring machine tool |
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| CN (1) | CN203804361U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106119934A (en) * | 2016-08-26 | 2016-11-16 | 大连大学 | Part electrochemical machining apparatus |
| CN108015369A (en) * | 2017-11-30 | 2018-05-11 | 中山市榄商置业发展有限公司 | A kind of Electrochemic equipment for removing burr |
| CN113967768A (en) * | 2021-12-03 | 2022-01-25 | 南通联翔机械有限公司 | Equipment is used in casting bent axle processing with drilling deckle edge is dispeled |
| CN114905232A (en) * | 2022-05-14 | 2022-08-16 | 江苏江航智飞机发动机部件研究院有限公司 | Precise electrolytic machining process of titanium alloy connecting piece |
-
2014
- 2014-03-26 CN CN201420140660.5U patent/CN203804361U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106119934A (en) * | 2016-08-26 | 2016-11-16 | 大连大学 | Part electrochemical machining apparatus |
| CN106119934B (en) * | 2016-08-26 | 2017-12-01 | 大连大学 | Part electrochemical machining apparatus |
| CN108015369A (en) * | 2017-11-30 | 2018-05-11 | 中山市榄商置业发展有限公司 | A kind of Electrochemic equipment for removing burr |
| CN113967768A (en) * | 2021-12-03 | 2022-01-25 | 南通联翔机械有限公司 | Equipment is used in casting bent axle processing with drilling deckle edge is dispeled |
| CN113967768B (en) * | 2021-12-03 | 2023-09-26 | 南通联翔机械有限公司 | Cast crankshaft machining equipment with drill burr is dispelled |
| CN114905232A (en) * | 2022-05-14 | 2022-08-16 | 江苏江航智飞机发动机部件研究院有限公司 | Precise electrolytic machining process of titanium alloy connecting piece |
| CN114905232B (en) * | 2022-05-14 | 2024-04-23 | 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 connecting piece |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20160326 |
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| CF01 | Termination of patent right due to non-payment of annual fee |