CN111262374A - Motor rear end cover and machining process thereof - Google Patents
Motor rear end cover and machining process thereof Download PDFInfo
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- CN111262374A CN111262374A CN202010203499.1A CN202010203499A CN111262374A CN 111262374 A CN111262374 A CN 111262374A CN 202010203499 A CN202010203499 A CN 202010203499A CN 111262374 A CN111262374 A CN 111262374A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/16—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/06—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of metallic material
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/19—Iron or steel
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/14—Casings; Enclosures; Supports
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Power Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to a motor rear end cover and a processing technology thereof, and the motor rear end cover comprises an end cover body, wherein a plurality of mounting holes are formed in the corners of the end cover body, a fan blade groove is formed in the middle of the end cover body, a through hole for an output shaft of a motor to pass through is formed in the middle of the fan blade groove, a plurality of vent holes are formed in the side wall of the fan blade groove, and the outer surface of the end cover body is plated with a zinc layer through a vacuum coating machine. According to the invention, the zinc coating is arranged on the outer surface of the end cover, so that the possibility of rusting of the end cover can be reduced, and the service life of the end cover can be prolonged.
Description
Technical Field
The invention relates to the technical field of motor manufacturing, in particular to a motor rear end cover and a processing technology thereof.
Background
The end cover is a key part in the motor, so the structural design and the processing technology of the end cover are very important, and the material, the size of an inner circle, the size of an outer circle, the wall thickness strength, the shape and the like of the end cover have direct influence on the operation stability of the motor.
In the prior art, reference may be made to chinese patent invention with an authorization publication number of CN103516100B, which discloses an insulating end cap, including an end cap body, wherein a first groove is formed at the front end of the outer peripheral surface of the end cap body, a second groove is formed at the rear end of the outer peripheral surface of the end cap body, and a through hole is formed in the middle of the end cap body; the distance a between the first groove and the front end face of the end cover body is 5 mm; the distance b between the second groove and the rear end face of the end cover body is 2 mm; the width m of each of the first groove and the second groove is 3mm, and the diameter phi d3 of a ring where the groove bottom is located is 210 mm; the diameter phi d1 of the through hole is 194mm, the diameter phi d2 of the excircle of the front end of the end cover body is 214mm, the diameter phi d4 of the excircle of the rear end of the end cover body is 216mm, and the thickness n of the end cover body is 53 mm. The invention has simple, ingenious and reasonable structure; the processing technology is simple, and the qualification rate of products can be effectively improved, so that the manufacturing cost is reduced, and the production efficiency is improved.
The above prior art solutions have the following drawbacks: the outer surface of the end cover is not provided with a zinc coating, so that the end cover is easy to rust, and the service life of the end cover can be shortened.
Disclosure of Invention
In view of the defects in the prior art, an object of the present invention is to provide a rear end cover of a motor, which can reduce the possibility of corrosion of the end cover by plating a zinc layer on the outer surface of the end cover, thereby prolonging the service life of the end cover.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a motor rear end cover, includes the end cover body, a plurality of mounting holes have been seted up to the corner of end cover body, the middle part of end cover body is provided with the flabellum groove, the perforation that is used for power machine output shaft to pass is seted up at the middle part in flabellum groove, a plurality of ventilation holes have been seted up on the lateral wall in flabellum groove, the surface of end cover body has plated the zinc layer through vacuum coating machine.
By adopting the technical scheme, the end cover is convenient to mount by arranging the mounting hole; the fan blade groove is arranged, so that the fan blades can be conveniently installed, and the motor can be conveniently cooled; the ventilation holes are arranged, so that the heat dissipation of the motor is facilitated; by arranging the zinc layer, the possibility of rusting the end cover can be reduced, and the service life of the end cover can be prolonged.
In view of the defects in the prior art, another object of the present invention is to provide a process for machining a rear end cover of a motor, which can reduce the possibility of corrosion of the end cover by plating a zinc layer on the outer surface of the end cover, thereby prolonging the service life of the end cover.
The above object of the present invention is achieved by the following technical solutions:
a processing technology of a rear end cover of a motor comprises the following steps: step one, plate shearing: shearing the strip steel into workpieces with required sizes through a plate shearing machine; step two, stamping a fan blade groove: stamping the workpiece through stamping equipment so as to form a fan blade groove on the workpiece; step three, boring and milling vent holes: placing the product processed in the second step on a boring and milling machine, and then boring and milling the side wall of the fan blade groove through the boring and milling machine, so that a vent hole can be formed, and cooling the workpiece through cooling liquid in the boring and milling process; step four, cleaning: cleaning a workpiece, adding a sodium hydroxide solution in the process of cleaning the workpiece so as to remove oil stains and scraps on the surface of the workpiece, then removing residual sodium hydroxide on the surface of the workpiece by washing, and then drying the workpiece; drilling a through hole and a mounting hole: placing the workpiece cleaned in the fourth step on a drilling machine, drilling the workpiece through the drilling machine so as to form a through hole and an installation hole, and cooling the workpiece through cooling liquid in the drilling process; step six, cleaning: the same step four; step seven, galvanization: putting the workpiece into a vacuum coating machine, and coating a layer of metal zinc on the surface of the workpiece through the vacuum coating machine; step eight, passivation: passivating the zinc layer by a trivalent chromium passivation technology; step nine, cleaning: cleaning the workpiece by using clean water; step ten, hot water washing: cleaning the workpiece by using hot water; eleventh, drying: drying the workpiece by hot air; step twelve, packaging: and packaging the workpiece.
By adopting the technical scheme, the sodium hydroxide solution is added in the cleaning process, so that oil stains on the surface of the workpiece can be conveniently removed; the zinc coating is arranged on the outer surface of the end cover, so that the possibility of rusting the end cover can be reduced, and the service life of the end cover can be prolonged; the zinc layer is passivated by a trivalent chromium passivation technology, so that the possibility of oxidation of the zinc layer can be reduced, and the possibility of rusting of the end cover can be further reduced.
The present invention in a preferred example may be further configured to: in the seventh step, the vacuum coating machine comprises a vacuum chamber and a vacuum pump, wherein a mounting groove is formed in the side wall of the vacuum chamber, and a zinc target material is mounted in the mounting groove; one side of the vacuum chamber is communicated with an argon inlet pipe, a first electric valve is arranged on the argon inlet pipe, and one end of the argon inlet pipe, which is far away from the vacuum chamber, is communicated with an argon source; the vacuum chamber is internally provided with an installation device for installing a workpiece, and the installation device comprises an installation shaft which is vertically and rotatably connected to the side wall of the vacuum chamber and a driving motor arranged below the vacuum chamber; the bottom of installation axle runs through real empty room's bottom and driving motor's output shaft fixed connection, install the epaxial fixed establishment who is used for fixed work piece of installation.
By adopting the technical scheme, the workpiece is fixed through the fixing mechanism, and then the vacuum pump is started to vacuumize the vacuum chamber; when the vacuum chamber reaches a vacuum point, starting a first electric valve, and filling argon into the vacuum chamber; then, negative high-voltage electricity is introduced into the zinc target material, the mounting shaft is driven to rotate through the driving motor, and the workpiece is driven to rotate through the rotation of the mounting shaft, so that the workpiece can be galvanized; the vacuum coating machine is arranged, so that the workpiece can be conveniently galvanized.
The present invention in a preferred example may be further configured to: the fixing mechanism comprises a fixing plate fixedly connected to the top of the mounting shaft and two vertical plates fixedly connected to two ends of the top of the fixing plate respectively; a first inner cavity is formed in the fixing plate, a second inner cavity communicated with the first inner cavity is formed in each vertical plate, slide ways are respectively formed in the opposite inner sides of the two vertical plates, and the two slide ways are respectively communicated with the two second inner cavities; a horizontal block is connected in each slide way in a sliding manner along the length direction of the fixing plate, a driving block is connected in the second inner cavity in a sliding manner along the vertical direction, inclined planes are respectively arranged on the opposite inner sides of the driving block and the horizontal block, and the two inclined planes are matched; two ends of the bottom of the first inner cavity are respectively provided with a driving assembly for driving the driving block to move; the one end rigid coupling that the drive block was kept away from to the horizontal piece has the butt piece, the one side bonding that the butt piece kept away from the horizontal piece has the inoxidizing coating, install the reset assembly that is used for driving the horizontal piece and resets in the second inner chamber.
By adopting the technical scheme, when a workpiece needs to be fixed, the workpiece is firstly placed on the fixing plate, then the driving block is driven to move upwards through the driving assembly, the driving block drives the horizontal block to move towards the direction close to the workpiece under the action of the inclined surface, and the horizontal block moves to drive the abutting block to move, so that the workpiece can be fixed; through setting up fixed establishment, be convenient for fix the work piece.
The present invention in a preferred example may be further configured to: each group of driving assemblies comprises a pneumatic motor arranged at the bottom of the first inner cavity and a lead screw vertically and rotatably connected in the first inner cavity; a worm is fixedly connected to an output shaft of the pneumatic motor, a worm wheel is fixedly sleeved at the bottom of the lead screw, and the worm wheel are meshed with each other; the lead screw is in threaded connection with the driving block.
By adopting the technical scheme, the output shaft of the pneumatic motor drives the worm to rotate, the worm rotates to drive the worm wheel to rotate, the worm wheel rotates to drive the lead screw to rotate, and the lead screw rotates to drive the driving block to move; through setting up drive assembly, be convenient for drive block and remove.
The present invention in a preferred example may be further configured to: a fixed pipe is sleeved on the installation shaft, the fixed pipe is rotatably connected to the installation shaft, an exhaust passage and an air inlet passage are arranged in the installation shaft, the top of the exhaust passage is fixedly connected with a first baffle, exhaust holes are respectively formed in two ends of the first baffle, exhaust pipes of the two pneumatic motors are respectively clamped in the two exhaust holes, one side of the exhaust passage is communicated with a second connecting pipe, and the second connecting pipe is positioned outside the vacuum chamber; the top rigid coupling of intake duct has the second baffle, the inlet port, two have been seted up respectively at the both ends of second baffle the intake pipe of pneumatic motor joint respectively in two inlet ports, the bottom intercommunication of intake duct has first connecting pipe, fixed intraductal first ring channel that has seted up, the one end that the intake duct was kept away from to first connecting pipe is in first ring channel, the intercommunication has the hose on the lateral wall of first ring channel, the one end and the air supply intercommunication of first ring channel are kept away from to the hose, install the second motorised valve on the hose.
By adopting the technical scheme, the air inlet channel is convenient to supply air by arranging the first annular groove and the hose; through setting up intake duct and exhaust passage, the pneumatic motor of being convenient for advances the exhaust.
The present invention in a preferred example may be further configured to: the fixed pipe comprises two semicircular pipes which are detachably connected through bolts, the inner peripheral surfaces of two ends of each semicircular pipe are fixedly connected with arc-shaped plates respectively, two second annular grooves are formed in the mounting shaft, the two arc-shaped plates are inserted into the two second annular grooves respectively, the inner peripheral surfaces of the arc-shaped plates are fixedly connected with vulcanized rubber layers, and the vulcanized rubber layers are abutted to the side walls of the second annular grooves.
By adopting the technical scheme, the possibility of air leakage of the first annular groove can be reduced by arranging the arc-shaped plate, the second annular groove and the vulcanized rubber layer; in addition, the vulcanized rubber layer has a friction resistance, so that the possibility of air leakage of the first annular groove can be further reduced.
The present invention in a preferred example may be further configured to: the resetting component comprises a horizontal rod fixedly connected to the side wall of the second inner cavity; the top rigid coupling of horizontal piece has the sliding sleeve, the sliding sleeve slides along the length direction of fixed plate and connects in the horizon bar, the spring has been cup jointed on the horizon bar, the one end rigid coupling of spring is in the lateral wall of second inner chamber, and one side that the drive block was kept away from in the sliding sleeve to the other end rigid coupling.
By adopting the technical scheme, the horizontal block moves towards the direction close to the workpiece to drive the sliding sleeve to move, the sliding sleeve moves to support and press the spring, and the spring is in a compressed state at the moment; when the driving block is separated from the horizontal block, the sliding sleeve drives the horizontal block to reset under the action of the spring; through setting up reset assembly, be convenient for drive horizontal piece resets.
The present invention in a preferred example may be further configured to: the side of the slideway far away from the driving block is fixedly connected with an annular block, the horizontal block is sleeved with the annular block, and the inner peripheral surface of the annular block is fixedly connected with an annular blade.
Through adopting above-mentioned technical scheme, through setting up the blade, be convenient for shovel down the zinc layer on the horizontal block to the horizontal block of being convenient for removes.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the installation of the end cover is facilitated by arranging the installation hole; the fan blade groove is arranged, so that the fan blades can be conveniently installed, and the motor can be conveniently cooled; the ventilation holes are arranged, so that the heat dissipation of the motor is facilitated; the zinc layer is arranged, so that the possibility of rusting the end cover can be reduced, and the service life of the end cover can be prolonged;
2. a sodium hydroxide solution is added in the cleaning process, so that oil stains on the surface of the workpiece can be conveniently removed; the zinc coating is arranged on the outer surface of the end cover, so that the possibility of rusting the end cover can be reduced, and the service life of the end cover can be prolonged; the zinc layer is passivated by a trivalent chromium passivation technology, so that the possibility of oxidation of the zinc layer can be reduced, and the possibility of corrosion of the end cover can be further reduced;
3. when a workpiece needs to be fixed, the workpiece is placed on the fixing plate, then the driving block is driven to move upwards through the driving assembly, the driving block drives the horizontal block to move towards the direction close to the workpiece under the action of the inclined surface, and the horizontal block moves to drive the abutting block to move, so that the workpiece can be fixed; through setting up fixed establishment, be convenient for fix the work piece.
Drawings
FIG. 1 is a schematic view showing a structure of a protruding end cap body in the embodiment;
FIG. 2 is a schematic view showing the structure of a vacuum coater in the embodiment;
FIG. 3 is an exploded view of the highlighted slide of the example;
fig. 4 is an exploded view highlighting the first connecting tube in the example.
In the figure, 1, an end cover body; 11. mounting holes; 12. a fan blade slot; 13. perforating; 14. a vent hole; 2. a vacuum coating machine; 21. a vacuum chamber; 211. mounting grooves; 22. a vacuum pump; 23. a zinc target material; 24. argon gas is fed into the tube; 241. a first electrically operated valve; 3. a mounting device; 31. installing a shaft; 311. an exhaust passage; 312. an air inlet channel; 313. a first baffle plate; 314. an exhaust hole; 315. a second connecting pipe; 316. a second baffle; 317. an air inlet; 318. a first connecting pipe; 319. a second annular groove; 32. a drive motor; 4. a fixing mechanism; 41. a fixing plate; 411. a first lumen; 42. a vertical plate; 421. a second lumen; 422. a slideway; 43. a horizontal block; 44. a drive block; 441. a bevel; 45. a butting block; 46. a protective layer; 5. a drive assembly; 51. a pneumatic motor; 52. a lead screw; 53. a worm; 54. a worm gear; 6. a fixed tube; 61. a first annular groove; 62. a hose; 63. a second electrically operated valve; 64. a semicircular tube; 641. an arc-shaped plate; 642. a vulcanized rubber layer; 7. a reset assembly; 71. a horizontal bar; 72. a sliding sleeve; 73. a spring; 8. a ring block; 81. a blade.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A motor rear end cover is shown in figures 1 and 2 and comprises an end cover body 1, a plurality of mounting holes 11 are formed in the corners of the end cover body 1, fan blade grooves 12 are formed in the middle of the end cover body 1, through holes 13 used for allowing an output shaft of a motor to pass through are formed in the middle of the fan blade grooves 12, a plurality of ventilation holes 14 are formed in the side walls of the fan blade grooves 12, and a zinc layer (not shown in the figure) is plated on the outer surface of the end cover body 1 through a vacuum coating machine 2. The installation of the end cover is facilitated by arranging the installation hole 11; the fan blade groove 12 is arranged, so that the fan blades can be conveniently installed, and the motor can be conveniently cooled; the ventilation holes 14 are arranged, so that the heat dissipation of the motor is facilitated; by arranging the zinc layer, the possibility of rusting the end cover can be reduced, and the service life of the end cover can be prolonged.
A processing technology of a rear end cover of a motor comprises the following steps:
step one, plate shearing: shearing the strip steel into workpieces with required sizes through a plate shearing machine;
step two, stamping the fan blade groove 12: stamping the workpiece through stamping equipment, so that the fan blade groove 12 can be formed on the workpiece;
step three, boring and milling the vent holes 14: placing the product processed in the second step on a boring and milling machine, and boring and milling the side wall of the fan blade groove 12 through the boring and milling machine so as to form the vent hole 14, and cooling the workpiece through cooling liquid in the boring and milling process;
step four, cleaning: cleaning a workpiece, adding a sodium hydroxide solution in the process of cleaning the workpiece so as to remove oil stains and scraps on the surface of the workpiece, then removing residual sodium hydroxide on the surface of the workpiece by washing, and then drying the workpiece;
step five, drilling a through hole 13 and a mounting hole 11: placing the workpiece cleaned in the fourth step on a drilling machine, drilling the workpiece through the drilling machine to form a through hole 13 and a mounting hole 11, and cooling the workpiece through cooling liquid in the drilling process;
step six, cleaning: the same step four;
step seven, galvanization: putting the workpiece into a vacuum coating machine 2, and coating a layer of metal zinc on the surface of the workpiece through the vacuum coating machine 2;
step eight, passivation: passivating the zinc layer by a trivalent chromium passivation technology; trivalent chromium passivation is a technique used in industrial production and processing;
step nine, cleaning: cleaning the workpiece by using clean water;
step ten, hot water washing: cleaning the workpiece by using hot water;
eleventh, drying: drying the workpiece by hot air; the hot air can be prepared by an electric heating wire and a fan;
step twelve, packaging: and packaging the workpiece.
A sodium hydroxide solution is added in the cleaning process, so that oil stains on the surface of the workpiece can be conveniently removed; the zinc coating is arranged on the outer surface of the end cover, so that the possibility of rusting the end cover can be reduced, and the service life of the end cover can be prolonged; the zinc layer is passivated by a trivalent chromium passivation technology, so that the possibility of oxidation of the zinc layer can be reduced, and the possibility of rusting of the end cover can be further reduced.
As shown in fig. 2, in the seventh step, the vacuum coating machine 2 includes a vacuum chamber 21 and a vacuum pump 22, the vacuum pump 22 is communicated with the vacuum chamber 21 through a pipeline, a mounting groove 211 is formed in a side wall of the vacuum chamber 21, and a zinc target 23 is mounted in the mounting groove 211; one side of the vacuum chamber 21 is communicated with an argon inlet pipe 24, the argon inlet pipe 24 is provided with a first electric valve 241, and one end of the argon inlet pipe 24, which is far away from the vacuum chamber 21, is communicated with an argon source; a mounting device 3 for mounting a workpiece is mounted in the vacuum chamber 21, and the mounting device 3 comprises a mounting shaft 31 vertically and rotatably connected to the side wall of the vacuum chamber 21 through a bearing and a driving motor 32 mounted below the vacuum chamber 21; the bottom of the mounting shaft 31 penetrates the bottom of the vacuum chamber 21 and is fixedly connected with an output shaft of the driving motor 32, and the mounting shaft 31 is provided with a fixing mechanism 4 for fixing a workpiece. Firstly, fixing a workpiece through a fixing mechanism 4, then starting a vacuum pump 22, and vacuumizing a vacuum chamber 21; when the vacuum chamber 21 reaches a vacuum point, starting the first electric valve 241, and filling argon into the vacuum chamber 21; then, negative high voltage is applied to the zinc target 23, the mounting shaft 31 is driven to rotate by the driving motor 32, and the workpiece is driven to rotate by the rotation of the mounting shaft 31, so that the workpiece can be galvanized; the vacuum coating machine 2 is arranged, so that the workpiece can be conveniently galvanized.
As shown in fig. 3 and 4, the fixing mechanism 4 includes a fixing plate 41 fixed to the top of the mounting shaft 31 and two vertical plates 42 respectively fixed to two ends of the top of the fixing plate 41; a first inner cavity 411 is formed in the fixing plate 41, a second inner cavity 421 communicated with the first inner cavity 411 is formed in each vertical plate 42, slide ways 422 are respectively formed on the opposite inner sides of the two vertical plates 42, and the two slide ways 422 are respectively communicated with the two second inner cavities 421; a horizontal block 43 is connected in each slide way 422 in a sliding manner along the length direction of the fixing plate 41, a driving block 44 is connected in the second inner cavity 421 in a sliding manner along the vertical direction, inclined surfaces 441 are respectively arranged on the opposite inner sides of the driving block 44 and the horizontal block 43, and the two inclined surfaces 441 are matched; the two ends of the bottom of the first inner cavity 411 are respectively provided with a driving component 5 for driving the driving block 44 to move; one end of the horizontal block 43, which is far away from the driving block 44, is fixedly connected with a butting block 45, one side of the butting block 45, which is far away from the horizontal block 43, is bonded with a protective layer 46, when more metal zinc is attached to the protective layer 46, the protective layer 46 can be directly shoveled down, then the protective layer 46 is replaced, and the protective layer 46 can be a rubber layer; the second inner cavity 421 is provided with a reset component 7 for driving the horizontal block 43 to reset. When a workpiece needs to be fixed, the workpiece is firstly placed on the fixing plate 41, then the driving block 44 is driven to move upwards by the driving assembly 5, at the moment, the driving block 44 drives the horizontal block 43 to move towards the direction close to the workpiece under the action of the inclined surface 441, and the horizontal block 43 moves to drive the abutting block 45 to move, so that the workpiece can be fixed; through setting up fixed establishment 4, be convenient for fix the work piece.
Each set of driving assembly 5 comprises a pneumatic motor 51 installed at the bottom of the first inner cavity 411 and a lead screw 52 vertically and rotatably connected in the first inner cavity 411 through a bearing; a worm 53 is fixedly connected to an output shaft of the pneumatic motor 51, a worm wheel 54 is fixedly sleeved at the bottom of the screw rod 52, and the worm 53 is meshed with the worm wheel 54; the lead screw 52 is threadedly connected to the drive block 44. The worm 53 is driven to rotate by an output shaft of the pneumatic motor 51, the worm 53 drives the worm wheel 54 to rotate, the worm wheel 54 drives the lead screw 52 to rotate, and the lead screw 52 drives the driving block 44 to move in a rotating manner; the driving assembly 5 is arranged to facilitate driving the driving block 44 to move.
The mounting shaft 31 is sleeved with a fixed pipe 6, the fixed pipe 6 is rotatably connected to the mounting shaft 31, an exhaust passage 311 and an air inlet passage 312 are arranged in the mounting shaft 31, the top of the exhaust passage 311 is fixedly connected with a first baffle 313, two ends of the first baffle 313 are respectively provided with an exhaust hole 314, exhaust pipes of two pneumatic motors 51 are respectively clamped in the two exhaust holes 314, one side of the exhaust passage 311 is communicated with a second connecting pipe 315, and the second connecting pipe 315 is positioned outside the vacuum chamber 21 and outside the fixed pipe 6; the top rigid coupling of intake duct 312 has second baffle 316, inlet hole 317 has been seted up respectively at the both ends of second baffle 316, the intake pipe of two pneumatic motors 51 is blocked in two inlet holes 317 respectively, the bottom intercommunication of intake duct 312 has first connecting pipe 318, first ring channel 61 has been seted up in the fixed pipe 6, the one end that intake duct 312 was kept away from to first connecting pipe 318 is in first ring channel 61, the intercommunication has hose 62 on the lateral wall of first ring channel 61, the one end and the air supply intercommunication that first ring channel 61 was kept away from to hose 62, install second motorised valve 63 on the hose 62. The air inlet channel 312 is convenient to be supplied with air through the first annular groove 61 and the hose 62; the air inlet channel 312 and the air outlet channel 311 are arranged to facilitate air inlet and exhaust of the air motor 51.
The reduction component 7 comprises a horizontal rod 71 fixedly connected with the side wall of the second inner cavity 421; the top of the horizontal block 43 is fixedly connected with a sliding sleeve 72, the sliding sleeve 72 is connected to the horizontal rod 71 in a sliding manner along the length direction of the fixing plate 41, the horizontal rod 71 is sleeved with a spring 73, one end of the spring 73 is fixedly connected to the side wall of the second inner cavity 421, and the other end of the spring 73 is fixedly connected to one side of the sliding sleeve 72 away from the driving block 44. The horizontal block 43 moves towards the direction close to the workpiece to drive the sliding sleeve 72 to move, the sliding sleeve 72 moves to press the spring 73, and the spring 73 is in a compressed state; when the driving block 44 is separated from the horizontal block 43, the sliding sleeve 72 drives the horizontal block 43 to return under the action of the spring 73; through setting up reset assembly 7, be convenient for drive horizontal piece 43 and reset.
The side of the slideway 422 far away from the driving block 44 is fixedly connected with an annular block 8, the horizontal block 43 is sleeved with the annular block 8, and the inner peripheral surface of the annular block 8 is fixedly connected with an annular blade 81. By arranging the blade 81, the zinc layer on the horizontal block 43 is conveniently shoveled down, so that the horizontal block 43 is convenient to move.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. A motor rear end cap which characterized in that: including end cover body (1), a plurality of mounting holes (11) have been seted up to the corner of end cover body (1), the middle part of end cover body (1) is provided with fan blade groove (12), perforation (13) that are used for power supply machine output shaft to pass are seted up at the middle part of fan blade groove (12), a plurality of ventilation holes (14) have been seted up on the lateral wall of fan blade groove (12), the surface of end cover body (1) has plated the zinc layer through vacuum coating machine (2).
2. A processing technology of a motor rear end cover is characterized in that: the method comprises the following steps:
step one, plate shearing: shearing the strip steel into workpieces with required sizes through a plate shearing machine;
step two, stamping the fan blade groove (12): stamping the workpiece through stamping equipment, so that a fan blade groove (12) can be formed on the workpiece;
step three, boring and milling the vent holes (14): placing the product processed in the second step on a boring and milling machine, and boring and milling the side wall of the fan blade groove (12) through the boring and milling machine so as to form the vent hole (14), and cooling the workpiece through cooling liquid in the boring and milling process;
step four, cleaning: cleaning a workpiece, adding a sodium hydroxide solution in the process of cleaning the workpiece so as to remove oil stains and scraps on the surface of the workpiece, then removing residual sodium hydroxide on the surface of the workpiece by washing, and then drying the workpiece;
fifthly, drilling a through hole (13) and a mounting hole (11): placing the workpiece cleaned in the fourth step on a drilling machine, drilling the workpiece through the drilling machine to form a through hole (13) and a mounting hole (11), and cooling the workpiece through cooling liquid in the drilling process;
step six, cleaning: the same step four;
step seven, galvanization: putting the workpiece into a vacuum coating machine (2), and coating a layer of metal zinc on the surface of the workpiece through the vacuum coating machine (2);
step eight, passivation: passivating the zinc layer by a trivalent chromium passivation technology;
step nine, cleaning: cleaning the workpiece by using clean water;
step ten, hot water washing: cleaning the workpiece by using hot water;
eleventh, drying: drying the workpiece by hot air;
step twelve, packaging: and packaging the workpiece.
3. The machining process of the motor rear end cover according to claim 2, characterized in that: in the seventh step, the vacuum coating machine (2) comprises a vacuum chamber (21) and a vacuum pump (22), wherein a mounting groove (211) is formed in the side wall of the vacuum chamber (21), and a zinc target (23) is mounted in the mounting groove (211); one side of the vacuum chamber (21) is communicated with an argon inlet pipe (24), a first electric valve (241) is installed on the argon inlet pipe (24), and one end, far away from the vacuum chamber (21), of the argon inlet pipe (24) is communicated with an argon source; the vacuum chamber (21) is internally provided with a mounting device (3) for mounting a workpiece, and the mounting device (3) comprises a mounting shaft (31) which is vertically and rotatably connected to the side wall of the vacuum chamber (21) and a driving motor (32) which is mounted below the vacuum chamber (21); the bottom of installation axle (31) runs through the bottom of vacuum chamber (21) and is connected with the output shaft fixed connection of driving motor (32), install fixed establishment (4) that are used for fixed work piece on installation axle (31).
4. The machining process of the motor rear end cover according to claim 3, characterized in that: the fixing mechanism (4) comprises a fixing plate (41) fixedly connected to the top of the mounting shaft (31) and two vertical plates (42) respectively fixedly connected to two ends of the top of the fixing plate (41); a first inner cavity (411) is formed in the fixing plate (41), a second inner cavity (421) communicated with the first inner cavity (411) is formed in each vertical plate (42), slide ways (422) are respectively formed in the opposite inner sides of the two vertical plates (42), and the two slide ways (422) are respectively communicated with the two second inner cavities (421); a horizontal block (43) is connected in each slide way (422) in a sliding manner along the length direction of the fixing plate (41), a driving block (44) is connected in the second inner cavity (421) in a sliding manner along the vertical direction, inclined surfaces (441) are respectively arranged on the opposite inner sides of the driving block (44) and the horizontal block (43), and the two inclined surfaces (441) are matched; two ends of the bottom of the first inner cavity (411) are respectively provided with a driving component (5) for driving a driving block (44) to move; horizontal piece (43) keep away from the one end rigid coupling of drive block (44) has butt piece (45), one side bonding that horizontal piece (43) was kept away from to butt piece (45) has inoxidizing coating (46), install reset subassembly (7) that are used for driving horizontal piece (43) and reset in second inner chamber (421).
5. The machining process of the motor rear end cover according to claim 4, characterized in that: each group of driving assemblies (5) comprises a pneumatic motor (51) arranged at the bottom of the first inner cavity (411) and a lead screw (52) vertically and rotatably connected into the first inner cavity (411); a worm (53) is fixedly connected to an output shaft of the pneumatic motor (51), a worm wheel (54) is fixedly sleeved at the bottom of the lead screw (52), and the worm (53) is meshed with the worm wheel (54); the lead screw (52) is in threaded connection with the driving block (44).
6. The machining process of the motor rear end cover according to claim 5, characterized in that: a fixed pipe (6) is sleeved on the mounting shaft (31), the fixed pipe (6) is rotatably connected to the mounting shaft (31), an exhaust passage (311) and an air inlet passage (312) are formed in the mounting shaft (31), a first baffle (313) is fixedly connected to the top of the exhaust passage (311), exhaust holes (314) are formed in two ends of the first baffle (313), exhaust pipes of two pneumatic motors (51) are clamped in the two exhaust holes (314) respectively, a second connecting pipe (315) is communicated with one side of the exhaust passage (311), and the second connecting pipe (315) is located outside the vacuum chamber (21); the top rigid coupling of intake duct (312) has second baffle (316), inlet port (317), two have been seted up respectively at the both ends of second baffle (316) the intake pipe of air motor (51) is joint in two inlet ports (317) respectively, the bottom intercommunication of intake duct (312) has first connecting pipe (318), first ring channel (61) have been seted up in fixed pipe (6), the one end that intake duct (312) were kept away from in first ring channel (61) in first connecting pipe (318), the intercommunication has hose (62) on the lateral wall of first ring channel (61), the one end and the air supply intercommunication of first ring channel (61) are kept away from in hose (62), install second motorised valve (63) on hose (62).
7. The machining process of the motor rear end cover according to claim 6, characterized in that: the fixed pipe (6) comprises two semicircular pipes (64), the semicircular pipes (64) are detachably connected through bolts, each of the inner circumferential surfaces of two ends of each of the semicircular pipes (64) is fixedly connected with an arc-shaped plate (641), the mounting shaft (31) is provided with two second annular grooves (319), the two arc-shaped plates (641) are respectively inserted into the two second annular grooves (319), the inner circumferential surface of each of the arc-shaped plates (641) is fixedly connected with a vulcanized rubber layer (642), and the vulcanized rubber layers (642) are abutted to the side walls of the second annular grooves (319).
8. The machining process of the motor rear end cover according to claim 4, characterized in that: the resetting component (7) comprises a horizontal rod (71) fixedly connected to the side wall of the second inner cavity (421); the top rigid coupling of horizontal piece (43) has sliding sleeve (72), sliding sleeve (72) slide along the length direction of fixed plate (41) and connect in horizon bar (71), spring (73) have been cup jointed on horizon bar (71), the one end rigid coupling of spring (73) is in the lateral wall of second inner chamber (421), and the one side of drive block (44) is kept away from in sliding sleeve (72) to the other end rigid coupling.
9. The machining process of the motor rear end cover according to claim 5, characterized in that: one side rigid coupling that drive block (44) was kept away from in slide (422) has annular piece (8), horizontal piece (43) are located to annular piece (8) cover, the inner peripheral surface rigid coupling of annular piece (8) has annular blade (81).
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| CN202010203499.1A CN111262374B (en) | 2020-03-20 | 2020-03-20 | Machining process of rear end cover of motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111564989A (en) * | 2020-06-15 | 2020-08-21 | 河南工业大学 | Piezoelectric-electromagnetic combined vibration energy collector |
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| CN105671489A (en) * | 2016-03-25 | 2016-06-15 | 沈阳大学 | Device for preparing structure-controllable functional film |
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| CN111262374B (en) | 2021-03-05 |
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