CN113098208A - Improved assembling and processing device for rotor shaft of three-phase asynchronous motor and processing technology thereof - Google Patents
Improved assembling and processing device for rotor shaft of three-phase asynchronous motor and processing technology thereof Download PDFInfo
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- CN113098208A CN113098208A CN202110531648.1A CN202110531648A CN113098208A CN 113098208 A CN113098208 A CN 113098208A CN 202110531648 A CN202110531648 A CN 202110531648A CN 113098208 A CN113098208 A CN 113098208A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/06—Metal-working plant comprising a number of associated machines or apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
- B24B5/22—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work for grinding cylindrical surfaces, e.g. on bolts
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Abstract
The invention discloses an improved assembling and processing device of a rotor shaft of a three-phase asynchronous motor and a processing technology thereof, belonging to the technical field of mechanical part processing, wherein the assembling and processing device is provided with a lifting component and a bearing base, the bearing base comprises a top plate and an object stage, the middle part of the top plate is provided with a bearing alignment hole, two sides of the bearing base are provided with limit holes, the assembly of a rotor and a bearing is more accurate through the matching use of the components, the integral working efficiency and the product quality are effectively improved, one end of a bearing is provided with a threaded end and is in interference fit with the rotor, the rotor and the bearing can be self-locked when the rotor and the bearing rotate relatively after the assembly is finished, the assembling stability of the rotor and the bearing is further ensured, the structure of the invention is simple and easy to operate, the assembling efficiency and the product quality of the rotor bearing are effectively improved, has certain practicability.
Description
Technical Field
The invention belongs to the technical field of mechanical part machining, and particularly relates to an improved assembling and machining device for a rotor shaft of a three-phase asynchronous motor and a machining process of the improved assembling and machining device.
Background
The rotor is mainly the main rotating part in power machinery and working machinery, such as the rotating part of the electrical machinery or some rotary machines, the rotor of the electrical machinery is generally made up of iron core, slip ring and blade wound with coil, in the production field of the miniature compact electrical machinery, need to set up the accurate bearing at both ends of the rotor, and the assembly of the rotor bearing is the essential process in the production process of the electrical machinery too, the quality that the rotor bearing is mounted affects the precision, life-span and performance of the bearing directly, have affected the integral quality of the electrical machinery too;
in the prior art, the motor rotor bearing is assembled by manually matching with a pneumatic device, so that the speed is low, the capacity is low, the position consistency of the assembly is poor, the running cost of a factory is increased, long-time continuous work cannot be realized, the requirements on physical strength and operating skills of operators are high, particularly, the assembly work operation difficulty of the rotor bearing is high, the labor intensity of workers is high, the damage of the bearing is easily caused, the qualification rate of a product is reduced, and the overall working efficiency and the product quality are finally low.
Disclosure of Invention
Aiming at the problem that the existing motor rotor bearing is not easy to assemble, the invention provides an improved three-phase asynchronous motor rotor shaft assembling and processing device which is provided with a lifting component and a bearing base, the assembly of a rotor and a bearing is more accurate through the matching use of the lifting component and the bearing base, the integral working efficiency and the product quality are effectively improved, and the problems in the background technology are solved.
In order to solve the above problems, the present invention adopts the following technical solutions.
The utility model provides a modified three-phase asynchronous machine rotor shaft assembles processingequipment, includes rotor and bearing, bearing and rotor fixed connection, modified three-phase asynchronous machine rotor shaft assemble processingequipment including assembling processingequipment, assembly processingequipment include liftable subassembly and bear the base, liftable subassembly fixed connection on the inside top of assembling processingequipment, bear base fixed mounting in the inside bottom of assembling processingequipment.
Preferably, the lifting assembly comprises an electric telescopic rod, a fixed plate, a limiting rod and a triangular chuck, one end of the electric telescopic rod is fixedly connected to the top end inside the assembly processing device, the other end of the electric telescopic rod is fixedly connected with the triangular chuck, the fixed plate is further arranged at one end of the electric telescopic rod and is sleeved at the output end of the electric telescopic rod and is fixedly connected to the output end of the electric telescopic rod, the limiting rod is arranged on two sides of the fixed plate and is fixedly connected to the fixed plate through a fastening bolt, the bearing base comprises a top plate and two object stages, a rotor placing groove is formed between the two object stages, the top plate is arranged at the upper end of the object stages, the top plate is connected with the object stages through reset springs arranged, and one end of each reset spring is fixedly connected with the lower end face of the top plate, the other end is fixedly connected with the upper end surface of the object stage.
Preferably, the middle part of the top plate is provided with a bearing alignment hole, the bearing alignment hole is opposite to the central clamping hole of the triangular chuck, the two sides of the bearing base are provided with limit holes, the limit holes are opposite to the limit rods, the limit rods can be inserted into the limit holes, the rotor comprises an iron core, a sliding ring and fan blades, the iron core is arranged inside the rotor and serves as an inner core of the rotor, the sliding ring is fixedly connected to the side wall of the rotor, and the fan blades are fixedly connected with the iron core.
Preferably, the bearing is cylindrical, and one end of the bearing is provided with a threaded end.
Preferably, the improved processing technology of the rotor shaft assembly processing device of the three-phase asynchronous motor comprises the following steps,
the rotor shaft machining process sequentially comprises the following steps: blanking: blanking by adopting a numerical control sawing machine, wherein the verticality is less than or equal to 0.54;
straightening: straightening the blanked blank workpiece by using a straightening machine, wherein the precision requirement of 0.02 is required to be ensured in the straightening process;
grinding the excircle: grinding the outer circle of the straightened rotor shaft by using a centerless grinding machine;
and (3) making an outer circle: a turning and milling compound machine is adopted to make an excircle;
key groove step: and (4) performing key slot operation by adopting a turning and milling compound machine.
Preferably, blank workpieces are placed on a worktable of the sawing machine in blanking of the numerical control sawing machine, single cutting is carried out by combining processing parameters of the sawing machine, the workpieces are aligned and fixed by a hydraulic device before cutting, ends of the workpieces are cut by about 8mm, the size of the workpieces to be blanked is determined by using a measuring tool, the clamping device needs to be checked again to ensure that the workpieces are clamped when the cutting is started, the sawing machine is started to blank, the speed of a saw belt cannot be too high, the blanking cutting can be carried out at the selectable speed 3 of a general section processing metal band sawing machine such as GB4230 metal band sawing machine, observation is carried out at any time during the cutting process, and after the cutting is finished, a saw frame such as a lifting button is pressed to completely lift and stop operation so.
Preferably, the straightening of the straightening machine can adopt a bending and straightening mode in the straightening process, a rotor shaft workpiece to be straightened is measured and fixed on two sizing blocks, the high point of the workpiece is upward, the workpiece is bent downward in the straightening process and exceeds the yield point, and the plastic deformation reaches the measurement requirement value; the straightening method can be selected according to actual needs, and meanwhile, the straightening machine can meet the precision requirement of 0.02 in the straightening process.
Preferably, the grinding outer circle can adopt a through grinding method and a plunge grinding method, wherein the through grinding method comprises the following steps: during grinding, the straightened rotor shaft is placed on a supporting plate from the front of a machine tool and is pushed into a grinding area, the axis of a guide wheel inclines by an alpha angle (alpha is 1-6 degrees) in a vertical plane, the linear velocity V guide at the contact position of the guide wheel and a workpiece can be decomposed into a horizontal direction and a vertical direction, the horizontal direction and the vertical direction are divided into a horizontal direction and a vertical direction, the V guide vertically controls the circular feeding motion of the workpiece, and the vertical direction leads the workpiece to be longitudinally fed, so that the workpiece can do both rotary motion and axial motion after entering the grinding area, the workpiece passes through the grinding area to be ground, the alpha angle is increased, the productivity is high, and the surface roughness value is increased; a cutting grinding method: the workpiece is placed between the pallet and the guide wheel and then the workpiece or grinding wheel is cut transversely into the feed grinding workpiece surface, with the center line of the guide wheel inclined only at a small angle (about 30 °), so as to produce a slight axial thrust on the workpiece against the stop plate for reliable axial positioning.
Preferably, when the outer circle is turned by using the turning and milling compound machine, a turning tool of the turning and milling compound machine is selected according to actual conditions, then turning is performed and tool setting is performed, a tool depth is accurately increased after tool setting is completed, then the outer circle is turned, and after the outer circle is cut, the tool is withdrawn firstly and then the outer circle is stopped.
Preferably, the key groove is also operated by a turning and milling compound machine, and the cutter is replaced to perform key groove after the turning and milling compound machine finishes cutting the excircle of the rotor shaft
Advantageous effects
Compared with the prior art, the method has the advantages that,
the improved rotor shaft assembling and processing device for the three-phase asynchronous motor has the beneficial effects that:
(1) foretell modified three-phase asynchronous machine rotor shaft assembly processingequipment is provided with liftable subassembly and bears the base, liftable subassembly include electric telescopic handle, fixed plate, gag lever post and triangle chuck, the base that bears include roof and objective table, the middle part of roof be provided with the bearing counterpoint hole, the bearing counterpoint hole relative with the center centre gripping hole position of triangle chuck, the both sides of bearing the base be provided with spacing hole, spacing hole relative with the position of gag lever post, use through the cooperation of these subassemblies and make the assembly of rotor and bearing more accurate, improved holistic work efficiency and product quality effectively.
(2) According to the improved rotor shaft assembling and processing device for the three-phase asynchronous motor, the threaded end is arranged at one end of the bearing and is in interference fit with the rotor, so that the rotor and the bearing can be self-locked when the rotor and the bearing rotate relatively after assembly is completed, the assembly stability of the rotor and the bearing is further guaranteed, and the improved rotor shaft assembling and processing device has practicability.
The improved processing technology of the rotor shaft assembling and processing device of the three-phase asynchronous motor has the beneficial effects that:
(1) according to the processing technology of the three-phase asynchronous motor rotor shaft component, blanking of blank workpieces is carried out through the numerical control sawing machine, and outer grinding of the rotor shaft is carried out through the centerless grinding machine, so that the production efficiency is effectively improved, the production safety is greatly improved, and meanwhile, the production cost is reduced.
(2) According to the processing technology for the rotor shaft component of the three-phase asynchronous motor, the discharged workpiece is straightened by the straightening machine, and turning and key groove operation of the excircle are performed by the turning and milling compound machine, so that the precision of the rotor shaft is improved, the quality of the rotor shaft produced at the same time is effectively improved, and the processing technology has certain practicability
Drawings
FIG. 1 is a front view of the assembly processing apparatus of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the assembled rotor and bearing of the present invention;
FIG. 4 is a sectional view of the rotor and bearing assembly of the present invention;
FIG. 5 is a flow chart of the processing technique of the equipment of the invention.
The corresponding relationship between the reference numbers of the figures and the names of the components in the figures is as follows:
in the figure: 100. assembling a processing device;
10. a lifting assembly; 11. an electric telescopic rod; 12. a fixing plate; 13. a limiting rod; 14. fastening a bolt; 15. a triangular chuck;
20. a load-bearing base; 21. a top plate; 22. a limiting hole; 23. a bearing alignment hole; 24. a return spring; 25. an object stage; 26. a rotor placement groove;
30. a rotor; 31. an iron core; 32. a slip ring; 33. a fan blade;
40. a bearing; 41. a threaded end.
Detailed Description
The invention is further described below in connection with specific embodiments of the invention.
Examples
As shown in fig. 1 to 4, which are schematic structural diagrams of an improved three-phase asynchronous motor rotor shaft assembling and processing device according to a preferred embodiment of the present invention, the improved three-phase asynchronous motor rotor shaft assembling and processing device according to the present embodiment includes an assembling and processing device 100, the assembling and processing device 100 includes a liftable assembly 10 and a bearing base 20, the liftable assembly 10 is fixedly connected to an inner top end of the assembling and processing device 100, the bearing base 20 is fixedly installed at an inner bottom end of the assembling and processing device 100, and the purpose of the assembling and processing device 100 is to more accurately assemble a provided bearing 40 and a provided rotor 30.
The rotor 30 comprises an iron core 31, a slip ring 32 and fan blades 33, the iron core 31 is arranged inside the rotor 30 and serves as an inner core of the rotor 30, the slip ring 32 is fixedly connected to the side wall of the rotor 30, and the fan blades 33 are fixedly connected with the iron core 31.
The bearing 40 is cylindrical, and one end of the bearing 40 is provided with a threaded end 41.
The bearing base 20 is fixedly connected to the bottom of the assembling and processing device 100, the bearing base 20 comprises a top plate 21 and two object stages 25, the two object stages 25 are provided with two rotor placing grooves 26, the rotor placing grooves 26 are used for placing rotors 30, the top plate 21 is arranged at the upper ends of the object stages 25, the top plate 21 is connected with the object stages 25 through a reset spring 24, one end of the reset spring 24 is fixedly connected with the lower end face of the top plate 21, the other end of the reset spring 24 is fixedly connected with the upper end face of the object stages 25, a bearing aligning hole 23 is arranged in the middle of the top plate 21, the bearing aligning hole 23 is opposite to the center clamping hole of the triangular chuck 15, the two sides of the bearing base 20 are provided with limiting holes 22, the limiting holes 22 are opposite to the limiting rod 13, the limiting rod 13 can be inserted into the limiting hole 22 and used for positioning and limiting the whole device in the assembling process.
In this embodiment, when the rotor 30 and the bearing 40 need to be assembled, the bearing 40 is clamped on the triangular chuck 15, the rotor 30 is flatly placed in the rotor placing groove 26 between the object stages 25, the triangular chuck 15 is lowered by opening the electric telescopic rod 11, the bearing 40 can be accurately positioned by using the limiting rod 13 and the limiting hole 22 in a matching way, the bearing 40 is further accurately positioned by the arranged bearing aligning hole 23, the hard pressure of the bearing 40 can be effectively relieved in the assembling process by the arranged return spring 24, the bearing 40 is ensured not to be bent in the assembling process, and the bearing 40 can be installed with the rotor 30 when the bearing 40 is lowered to a certain height The self-locking is carried out, the assembly stability of the rotor 30 and the bearing 40 is further ensured, the integral assembly efficiency and the product quality are improved, and the invention has certain practicability.
Fig. 5 is a process flow chart of a three-phase asynchronous motor rotor shaft component processing technology according to a preferred embodiment of the invention: the method comprises the steps of firstly, blanking by adopting a numerical control sawing machine, wherein the perpendicularity is less than or equal to 0.54, placing a blank workpiece on a working table of the sawing machine, carrying out single cutting by combining processing parameters of the sawing machine, arranging and aligning the workpiece before cutting, fixing the workpiece by using a hydraulic device, cutting an end of the workpiece by about 8mm, determining the size of blanking by using a measuring tool, checking a clamping device again to ensure that the workpiece is clamped when the cutting is started, entering the sawing machine for blanking, wherein the speed of a saw belt can not be too high, the blanking cutting can be carried out at the selectable speed 3 of a general section processing metal belt sawing machine such as GB4230, observing at any time in the cutting process, and pressing a lifting button and the like after the cutting is finished so as to completely lift.
Secondly, straightening, namely straightening by adopting a straightening machine, wherein a bending straightening mode can be adopted in the straightening process, a rotor shaft workpiece to be straightened is measured and fixed on two sizing blocks, the high point of the workpiece is upward, the workpiece is bent downward in the straightening process and exceeds the yield point, and the plastic deformation reaches the measurement requirement value; the straightening method can be selected according to actual needs, and meanwhile, the straightening machine can meet the precision requirement of 0.02 in the straightening process.
And step three, grinding the outer circle, namely grinding the outer circle of the straightened rotor shaft by using a centerless grinding machine, wherein the outer circle can be ground by adopting a through grinding method and a plunge grinding method, and the through grinding method comprises the following steps: during grinding, the straightened rotor shaft is placed on a supporting plate from the front of a machine tool and is pushed into a grinding area, the axis of a guide wheel inclines by an alpha angle (alpha is 1-6 degrees) in a vertical plane, the linear velocity V guide at the contact position of the guide wheel and a workpiece can be decomposed into a horizontal direction and a vertical direction, the horizontal direction and the vertical direction are divided into a horizontal direction and a vertical direction, the V guide vertically controls the circular feeding motion of the workpiece, and the vertical direction leads the workpiece to be longitudinally fed, so that the workpiece can do both rotary motion and axial motion after entering the grinding area, the workpiece passes through the grinding area to be ground, the alpha angle is increased, the productivity is high, and the surface roughness value is increased; a cutting grinding method: the workpiece is placed between the pallet and the guide wheel and then the workpiece or grinding wheel is cut transversely into the feed grinding workpiece surface, with the center line of the guide wheel inclined only at a small angle (about 30 °), so as to produce a slight axial thrust on the workpiece against the stop plate for reliable axial positioning.
And fourthly, making an outer circle, making the outer circle by using the turning and milling compound machine, when the outer circle is turned by using the turning and milling compound machine, firstly selecting a turning tool of the turning and milling compound machine according to actual conditions, then starting and setting a tool, accurately increasing the cutting depth after the tool setting is finished, then turning the outer circle, and withdrawing the tool after the outer circle is cut, and then stopping the machine.
And fifthly, performing key groove operation by using the turning and milling compound machine, and replacing a cutter to perform key groove after the turning and milling compound machine finishes cutting the excircle of the rotor shaft.
The process flow of the invention is as follows: blanking, blanking by adopting a numerical control sawing machine, straightening by adopting a straightening machine, ensuring the precision requirement of 0.02, grinding an excircle, grinding the excircle of the straightened rotor shaft by adopting a centerless grinding machine, making the excircle and a key slot, turning the excircle of the rotor shaft by adopting a turning and milling compound machine, pressing a bearing, pressing the bearing and a bearing gland into a bearing chamber of a rotor shell, and obtaining the complete motor rotor
While the invention has been described in further detail in connection with specific embodiments thereof, it will be understood that the invention is not limited thereto, and that various other modifications and substitutions may be made by those skilled in the art without departing from the spirit of the invention, which should be considered to be within the scope of the invention as defined by the appended claims.
Claims (10)
1. An improved rotor shaft assembling and processing device of a three-phase asynchronous motor comprises a rotor (30) and a bearing (40), wherein the bearing (40) is fixedly connected with the rotor (30);
the method is characterized in that:
improved three-phase asynchronous machine rotor shaft assembly processingequipment including assembling processingequipment (100), assembly processingequipment (100) including liftable subassembly (10) and bear base (20), liftable subassembly (10) fixed connection on the inside top of assembling processingequipment (100), bear base (20) fixed mounting in the inside bottom of assembling processingequipment (100).
2. The improved rotor shaft assembling and processing device for the three-phase asynchronous motor according to claim 1, is characterized in that: the lifting component (10) comprises an electric telescopic rod (11), a fixing plate (12), a limiting rod (13) and a triangular chuck (15), one end of the electric telescopic rod (11) is fixedly connected to the top end inside the assembling and processing device (100), the other end of the electric telescopic rod is fixedly connected with the triangular chuck (15), the fixing plate (12) is further arranged at one end of the electric telescopic rod (11), the fixing plate (12) is sleeved at the output end of the electric telescopic rod (11) and is fixedly connected to the output end of the electric telescopic rod (11), the limiting rod (13) is arranged on two sides of the fixing plate (12), the limiting rod (13) is fixedly connected to the fixing plate (12) through a fastening bolt (14) arranged on the limiting rod, the bearing base (20) comprises a top plate (21) and an object carrying platform (25), and the object carrying platform (25) is provided with two object carrying platforms, a rotor placing groove (26) is formed between the two object stages (25), the top plate (21) is arranged at the upper end of the object stages (25), the top plate (21) is connected with the object stages (25) through a return spring (24) arranged in the rotor placing groove, one end of the return spring (24) is fixedly connected with the lower end face of the top plate (21), and the other end of the return spring is fixedly connected with the upper end face of the object stages (25).
3. The improved rotor shaft assembling and processing device for the three-phase asynchronous motor according to claim 2, is characterized in that: the middle part of roof (21) be provided with bearing counterpoint hole (23), bearing counterpoint hole (23) relative with the center centre gripping hole position of triangle chuck (15), the both sides of bearing base (20) be provided with spacing hole (22), spacing hole (22) relative with the position of gag lever post (13), gag lever post (13) can peg graft in spacing hole (22), rotor (30) include iron core (31), sliding ring (32) and fan blade (33), iron core (31) set up the inside as the inner core of rotor (30) in rotor (30), sliding ring (32) fixed connection in the lateral wall of rotor (30), fan blade (33) and iron core (31) fixed connection.
4. The improved rotor shaft assembling and processing device for the three-phase asynchronous motor according to claim 1, is characterized in that: the bearing (40) is cylindrical, and a threaded end (41) is arranged at one end of the bearing (40).
5. The improved processing technology for assembling and processing the rotor shaft of the three-phase asynchronous motor according to any one of the claims 1 to 4, characterized in that: the steps are as follows, a processing technique of rotor shaft parts of a three-phase asynchronous motor,
1) the rotor shaft machining process sequentially comprises the following steps: blanking: blanking by adopting a numerical control sawing machine, wherein the verticality is less than or equal to 0.54;
2) straightening: straightening the blanked blank workpiece by using a straightening machine, wherein the precision requirement of 0.02 is required to be ensured in the straightening process;
3) grinding the excircle: grinding the outer circle of the straightened rotor shaft by using a centerless grinding machine;
4) and (3) making an outer circle: a turning and milling compound machine is adopted to make an excircle;
5) key groove step: and (4) performing key slot operation by adopting a turning and milling compound machine.
6. The process for machining a rotor shaft component of a three-phase asynchronous motor according to claim 5, characterized in that: the blanking of the numerical control sawing machine is characterized in that a blank workpiece is placed on a working table of the sawing machine, single cutting is carried out by combining processing parameters of the sawing machine, the workpiece is arranged and aligned before cutting, the workpiece is fixed by a hydraulic device, an end of the workpiece is cut by about 8mm, the size of the workpiece to be blanked is determined by a measuring tool, the clamping device needs to be checked again to ensure that the workpiece is clamped when the cutting is started, the sawing machine is started to blank, the speed of a sawing belt cannot be too high, the blanking cutting can be carried out at the selectable speed 3 of a general section processing metal belt sawing machine such as GB4230 metal belt sawing machine, observation is carried out at any time during the cutting process, and subsequent processing operation can be carried out by pressing a lifting.
7. The process for machining a rotor shaft component of a three-phase asynchronous motor according to claim 5, characterized in that: the straightening of the straightening machine can adopt a bending and straightening mode in the straightening process, a rotor shaft workpiece to be straightened is measured and fixed on two sizing blocks, the high point of the workpiece is upward, the workpiece is bent downward in the straightening process and exceeds the yield point, and the plastic deformation reaches the measurement requirement value; the straightening method can be selected according to actual needs, and meanwhile, the straightening machine can meet the precision requirement of 0.02 in the straightening process.
8. The process for machining a rotor shaft component of a three-phase asynchronous motor according to claim 5, characterized in that: the grinding excircle can adopt a through grinding method and a plunge grinding method, wherein the through grinding method comprises the following steps: during grinding, the straightened rotor shaft is placed on a supporting plate from the front of a machine tool and is pushed into a grinding area, the axis of a guide wheel inclines by an alpha angle (alpha is 1-6 degrees) in a vertical plane, the linear velocity V guide at the contact position of the guide wheel and a workpiece can be decomposed into a horizontal direction and a vertical direction, the horizontal direction and the vertical direction are divided into a horizontal direction and a vertical direction, the V guide vertically controls the circular feeding motion of the workpiece, and the vertical direction leads the workpiece to be longitudinally fed, so that the workpiece can do both rotary motion and axial motion after entering the grinding area, the workpiece passes through the grinding area to be ground, the alpha angle is increased, the productivity is high, and the surface roughness value is increased; a cutting grinding method: the workpiece is placed between the pallet and the guide wheel and then the workpiece or grinding wheel is cut transversely into the feed grinding workpiece surface, with the center line of the guide wheel inclined only at a small angle (about 30 °), so as to produce a slight axial thrust on the workpiece against the stop plate for reliable axial positioning.
9. The process for machining a rotor shaft component of a three-phase asynchronous motor according to claim 5, characterized in that: when the outer circle is turned by using the turning and milling compound machine, a turning tool of the turning and milling compound machine is selected according to actual conditions, then the turning and tool setting are carried out, the tool depth is accurately increased after the tool setting is finished, then the outer circle is turned, and after the outer circle is cut, the tool is withdrawn firstly and then the machine is stopped.
10. The process for machining a rotor shaft component of a three-phase asynchronous motor according to claim 5, characterized in that: the key groove is also operated by adopting a turning and milling compound machine, and the cutter is replaced to perform the key groove after the turning and milling compound machine finishes the excircle cutting of the rotor shaft.
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| CN202110531648.1A CN113098208A (en) | 2021-05-17 | 2021-05-17 | Improved assembling and processing device for rotor shaft of three-phase asynchronous motor and processing technology thereof |
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| CN202110531648.1A CN113098208A (en) | 2021-05-17 | 2021-05-17 | Improved assembling and processing device for rotor shaft of three-phase asynchronous motor and processing technology thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114905339A (en) * | 2022-04-29 | 2022-08-16 | 江西江钨硬质合金有限公司 | Processing technology of high-precision hard alloy bar |
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| CN204030894U (en) * | 2014-07-02 | 2014-12-17 | 苏州力久新能源科技有限公司 | A kind of magneto assembling servicing unit |
| CN205201241U (en) * | 2015-11-09 | 2016-05-04 | 辽宁爱尔创生物材料有限公司 | Cylinder workpiece surface ring channel processingequipment |
| CN107598687A (en) * | 2016-07-12 | 2018-01-19 | 格伦兴市楚丁股份有限公司 | The method and apparatus that simultaneously multiple workpiece are carried out with Cylindrical Centerless Grinding |
| CN209982281U (en) * | 2018-01-29 | 2020-01-21 | 宁波聚华光学科技有限公司 | Motor rotor straightening machine |
| CN208445444U (en) * | 2018-08-24 | 2019-01-29 | 濮阳市华强电机有限公司 | Generator rotor shaft, which installs, matches device |
| CN110391722A (en) * | 2019-08-06 | 2019-10-29 | 浙江万冠电机有限公司 | A kind of automatic shaft entering holds and adds the device of glue |
| CN112792515A (en) * | 2021-01-26 | 2021-05-14 | 宁波恒源轴业有限公司 | Shaft core processing technology |
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| CN114905339A (en) * | 2022-04-29 | 2022-08-16 | 江西江钨硬质合金有限公司 | Processing technology of high-precision hard alloy bar |
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Application publication date: 20210709 |