CN104439456A - Method for processing two 180-degree distributed key grooves in shaft-extension end of large motor - Google Patents
Method for processing two 180-degree distributed key grooves in shaft-extension end of large motor Download PDFInfo
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- CN104439456A CN104439456A CN201410620632.8A CN201410620632A CN104439456A CN 104439456 A CN104439456 A CN 104439456A CN 201410620632 A CN201410620632 A CN 201410620632A CN 104439456 A CN104439456 A CN 104439456A
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- rotor
- keyway
- base plate
- boring
- school
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
- B23C3/28—Grooving workpieces
- B23C3/30—Milling straight grooves, e.g. keyways
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/20—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
- B23Q15/22—Control or regulation of position of tool or workpiece
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- Mechanical Engineering (AREA)
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Abstract
The invention discloses a method for processing two 180-degree distributed key grooves in a shaft-extension end of a large motor. The method comprises the steps of mounting a rotor; mounting a calibrating debugging tool; processing a first key groove; processing a second key groove; and re-examining the symmetry of the processed first key groove and the processed second key groove through a dial indicator so as to further confirm the processing precision of the first key groove and the second key groove. According to the method for processing the two 180-degree distributed key grooves in the shaft-extension end of the large motor, calibrating and debugging reference surfaces adopted in the process of processing the first key groove and the second key groove are the same plane in the same calibrating debugging tool, so that the error is small, the precision is high, the 180-degree rotating precision of the rotor can be ensured, and the symmetry of the two key grooves can be ensured.
Description
Technical field
The present invention relates to a kind of keyway processing technology, be specifically related to the double bond groove processing method of a kind of 180 °, large-size machine shaft extension end distribution.
Background technology
The axle stretch end of motor and the axle stretch end of rotor are the positions connected with user, and the keyway quality that axle stretch end is processed will directly affect the quality of whole motor, and on axle stretch end, the technical requirement of keyway is high, and difficulty of processing is large.Large-size machine shaft extension end being processed keyway is that the minister of public works in ancient china is shown in the thing of passing through, keyway has the degree of depth and length, general employing milling cutter processes, the processing technology of single straight keyway is very ripe, so, the two straight keyway of processing axle stretch end 180 ° distribution is just not simple like this, single straight keyway has keyway dimensional accuracy and symmetry requirement, symmetry requirement is also had between two keyways, these technical requirements are all higher, very large difficulty is brought to processing, symmetry between two keyways uses for reality, precision is more high better, but can not be too high, it is by the restriction of processing conditions, as the precision of process equipment, the precision of survey tool, the wearability of cutter, the impacts such as processing environment, requirement is less than 0.05mm.
The centre of the rotor of large ac machines is unshakable in one's determination, and respectively have one grade of bearing guard on the both sides of iron core, one end of rotor is axle stretch end, and the cylindrical of axle stretch end requires two straight keyways that processing 180 ° distributes.The problem that the double bond groove of 180 ° of distributions mainly solves is exactly AXIALLY SYMMETRIC PROBLEMS, double bond groove is that side keyway i.e. the first keyway processes i.e. the second keyway of rear reprocessing opposite side keyway, because the milling cutter of processing keyway is changeless, after first keyway processing, rotor must be rotated, the precision height of the rotor anglec of rotation also just determines two straight keyway at symmetry circumferentially.
Structure due to rotor is longilineal, rotor is generally all put by double bond groove on the cylindrical of the axle stretch end of processing rotor sidewards, rotor place boring and milling machine workbench on V shape iron on, rotor can rotate on V shape iron, be convenient to the Working position adjusting rotor, the coordinate of the main shaft of boring and milling machine can move along X, Y, Z, the axis of rotor and X-axis, the axis of the main shaft of boring and milling machine and Z axis, X-axis and Z axis are in same level, Y-axis is perpendicular to this horizontal plane, and X, Y-axis are moved along horizontal and vertical hydrostatic slideway correspondingly, and Z moves along sliding bearing.Judge according to the practical experience that lathe uses, change greatly with the gap between tile fragment in inactive state and running status guide rail, and Z is relatively little along the change of sliding bearing gap.Rotor is at school timing, and the hydrostatic slideway of lathe remains static, and when processing keyway, the hydrostatic slideway of lathe is in running status.For ensureing rotor school timing and the state consistency adding man-hour, the reference axis that school timing uses is as far as possible consistent with the reference axis adding man-hour, and the reference axis used is more few better, can reduce the accumulated error of coordinate like this, can improve the machining accuracy of keyway.
Because the school adopted adjusts datum level not fix in the double bond groove processing method of traditional 180 °, large-size machine shaft extension end distribution, the machining accuracy of keyway is low, cannot meet the high symmetry requirement of double bond groove.
Summary of the invention
The object of the invention is to the defect overcoming prior art, the double bond groove processing method providing a kind of 180 °, large-size machine shaft extension end to distribute, can meet the high symmetry requirement of double bond groove, improve crudy, economic benefit is inestimable, and operating procedure is simple.
The object of the present invention is achieved like this: a kind of double bond groove processing method of 180 °, large-size machine shaft extension end distribution, comprises the following steps:
Step S1, installs rotor, comprises adjustment rotor operation and rotor operation of resuming classes:
Adjustment rotor operation, the rotor of large-size machine is kept flat on the workbench of boring and milling machine, rotor is supported with V shape iron, rotor is rotated to suitable position, dial gauge loaded onto by the main shaft of boring and milling machine, the gage outfit of dial gauge is placed on the cylindrical of the bearing guard of rotor, measure Up Highway UHW and the side bus of the bearing guard of rotor, according to size and the actual measured value of the diameter of the bearing guard of rotor, calculate the difference of the straight path that rotor centerline and boring and milling machine run, this difference then meets technical requirement as being less than 0.02mm, this difference is as being more than or equal to 0.02mm, then continue adjustment rotor, until this difference is less than 0.02mm,
To resume classes rotor operation, after rotor is adjusted, rotor and V shape iron is compressed with the pressing plate on the workbench of boring and milling machine, to resume classes the Up Highway UHW of bearing guard of rotor and side bus with dial gauge, ensure that the Up Highway UHW of the bearing guard of the described rotor in its measurement data and described adjustment rotor operation and side bus remain unchanged;
Step S2, school is installed and adjusts frock, the end face of the axle stretch end of rotor is installed school and adjusts frock, school adjusts the school of frock to adjust datum level level to place upward, dial gauge loaded onto by the main shaft of boring and milling machine, the gage outfit of dial gauge is placed on one end that datum level is adjusted in school, the main shaft of boring and milling machine moves forward and backward, dial gauge adjusts one end of datum level to move to the other end from school, if measured value is less than 0.01mm, meet technical requirement, if measured value is more than or equal to 0.01mm, then adjust school and adjust frock, until this measured value is less than 0.01mm, then adjust frock on the end face of the axle stretch end of rotor with bolted school, datum level is adjusted with dial gauge repetition measurement school, measured value should be less than 0.01mm,
Step S3, processes the first keyway: the center of the first keyway found accurately by the main shaft of boring and milling machine, with the first keyway on the cylindrical of the axle stretch end of the milling cutter processing rotor on the main shaft of boring and milling machine;
Step S4, process the second keyway: after the first keyway processes, unclamp the pressing plate on the workbench of boring and milling machine, the bolt that frock is adjusted in fixing school can not be loosened, rotor is rotated 180 °, school adjusts the school of frock to adjust datum level level down, the center of the second keyway found accurately by the main shaft of boring and milling machine, the main shaft of boring and milling machine loads onto dial gauge again, the gage outfit of dial gauge is placed on one end that datum level is adjusted in school, the main shaft of boring and milling machine moves forward and backward, dial gauge adjusts one end of datum level to move to the other end from school, measured value should be less than 0.01mm, after correcting this measured value, with the second keyway on the cylindrical of the axle stretch end of the milling cutter processing rotor on the main shaft of boring and milling machine,
Step S5, after the first keyway and the second keyway process, reviews the symmetry of the first keyway and the second keyway with dial gauge, confirm the machining accuracy of the first keyway and the second keyway further.
The double bond groove processing method of above-mentioned 180 °, large-size machine shaft extension end distribution, wherein, the center of finding the first keyway accurately of the main shaft of boring and milling machine described in described step S3 moves up and down the relative position of the cylindrical measuring the main shaft of boring and milling machine and the axle stretch end of rotor by adopting the main shaft of boring and milling machine thus finds the center of the first keyway accurately, or is found accurately the center of the first keyway by employing Test-cut met; The described Test-cut met center of finding accurately is at position milling one cutter that the first keyway is processed with the milling cutter on the main shaft of described boring and milling machine, as long as the degree of depth of processing makes the whole circle of milling cutter process, the situation examining following cutting judges the position at the center of the first keyway.
The double bond groove processing method of above-mentioned 180 °, large-size machine shaft extension end distribution, wherein, the end face of the axle stretch end of described rotor is provided with seam and some screws, described some screws are distributed on the neighboring of described seam, described school adjusts frock to comprise base plate and datum plate, wherein:
Described base plate is round pie and vertical setting, the diameter of described base plate equals the diameter of the axle stretch end of described rotor, the rear surface of described base plate is provided with the positioning spigot matched with the seam on the end face of the axle stretch end of described rotor, this positioning spigot protrudes backward and is connected in the seam on the end face of described large-size machine shaft extension end;
Described base plate offers the positioning through hole that some front and back of matching correspondingly with the some screws on the end face of the axle stretch end of described rotor are through, this some positioning through hole is fixed with the some screws on the end face of the axle stretch end of described rotor correspondingly by bolt;
The position that the left and right side of described base plate is corresponding to the double bond groove that described 180 °, large-size machine shaft extension end distributes offers left-side bottom breach and right side base plate breach correspondingly;
The position between described left-side bottom breach and right side base plate breach of described base plate offers the first bottom hole, the first base plate pin-and-hole, the second base plate pin-and-hole and the second bottom hole from left to right successively, and the center of described first bottom hole, the first base plate pin-and-hole, the second base plate pin-and-hole and the second bottom hole is on same horizontal linear;
Described datum plate is horizontally disposed with, and described datum plate comprises transverse plate and longitudinal plate, and the front end face of described longitudinal plate is fitted in the middle part of the rear end face of described transverse plate and surrounds T-shaped structure with described transverse plate, described transverse plate and longitudinal plate one-body molded;
The length of the rear end face of described longitudinal plate is identical with the distance between described left-side bottom breach and right side base plate breach, and the rear end face of described longitudinal plate fits tightly the position between described left-side bottom breach and right side base plate breach of the front surface in described base plate; The rear end face of described longitudinal plate offers from left to right successively the first datum plate screw, the first datum plate pin-and-hole, the second datum plate pin-and-hole and the second datum plate screw, the merging that matches with described first bottom hole, the first base plate pin-and-hole, the second base plate pin-and-hole and the second bottom hole correspondingly of described first datum plate screw, the first datum plate pin-and-hole, the second datum plate pin-and-hole and the second datum plate screw is fixedly connected with;
The front portion of the upper surface of described transverse plate arranges a recessed ledge frame face, and the linearity in this recessed ledge frame face is within 0.01mm, and this recessed ledge frame face is that datum level is adjusted in school.
The double bond groove processing method of above-mentioned 180 °, large-size machine shaft extension end distribution, wherein, the length of described transverse plate equals the diameter of the axle stretch end of described rotor.
The double bond groove processing method of above-mentioned 180 °, large-size machine shaft extension end distribution, wherein, the thickness of described longitudinal plate is equal to or less than the width of keyway.
The double bond groove processing method of above-mentioned 180 °, large-size machine shaft extension end distribution, wherein, the thickness of described longitudinal plate is equal with the thickness of described transverse plate.
The double bond groove processing method of above-mentioned 180 °, large-size machine shaft extension end distribution, wherein, described left-side bottom breach and right side base plate breach measure-alike, and the width of described left-side bottom breach is greater than the width of corresponding keyway, the degree of depth of described left-side bottom breach is greater than the degree of depth of corresponding keyway.
The double bond groove processing method of above-mentioned 180 °, large-size machine shaft extension end distribution, wherein, the screw number on the end face of the axle stretch end of described rotor is four, and the number of the positioning through hole on described base plate is four.
The technical scheme of the double bond groove processing method of 180 °, large-size machine shaft extension end distribution of the present invention, only Z axis is used at keyway process lieutenant colonel timing, when processing keyway, the degree of depth is controlled by mobile Z axis, length is controlled by mobile X-axis, after school adjusts datum level to adjust, in keyway process, Y-axis is not moved, the machining accuracy impact of such movement combination on keyway is minimum, meet the technical requirement of processing, and less demanding to lathe, as long as it is just passable to meet machining accuracy, due in process, only has an axle in motion, therefore, as long as use common lathe just can meet the demands, and the school adopted in processing first keyway and the second keyway process adjusts datum level to be the same plane that same school adjusts in frock, error is little, precision is high, rotor 180 ° of running accuracies can be guaranteed, thus ensure the symmetry of two keyways.The double bond groove processing method of 180 °, large-size machine shaft extension end distribution of the present invention can meet the high symmetry requirement of double bond groove, and improve crudy, economic benefit is inestimable, and operating procedure is simple.
Accompanying drawing explanation
Fig. 1 is the structural representation adopting double bond groove processing method of the present invention to process the first keyway;
Fig. 2 is the structural representation adopting double bond groove processing method of the present invention to process the second keyway;
Fig. 3 is the structural representation of the workbench of boring and milling machine in embodiment;
Fig. 4 is the structure chart that frock is adjusted in double bond groove processing method of the present invention school used;
Fig. 4 a is the front view that the base plate of frock is adjusted in school used in double bond groove processing method of the present invention;
Fig. 4 b is the side view that the base plate of frock is adjusted in school used in double bond groove processing method of the present invention;
Fig. 4 c is the top view that the datum plate of frock is adjusted in school used in double bond groove processing method of the present invention;
Fig. 4 d is the side view that the datum plate of frock is adjusted in school used in double bond groove processing method of the present invention.
Detailed description of the invention
In order to understand technical scheme of the present invention better, be also described in detail by reference to the accompanying drawings below by specific embodiment.
Refer to Fig. 1, Fig. 2 and Fig. 3, the double bond groove processing method of a kind of 180 °, large-size machine shaft extension end distribution of the present invention, comprises the following steps:
Step S1, installs rotor, comprises adjustment rotor operation and rotor operation of resuming classes:
Adjustment rotor operation, the rotor 1 of large-size machine is kept flat on the workbench of boring and milling machine 2, rotor is supported with V shape iron 21, rotor 1 is rotated to suitable position, dial gauge 4 loaded onto by the main shaft 20 of boring and milling machine 2, the gage outfit of dial gauge 4 is placed on the cylindrical of the bearing guard of rotor 1, measure Up Highway UHW and the side bus of the bearing guard of rotor 1, according to size and the actual measured value of the diameter of the bearing guard of rotor 1, calculate the difference of the straight path that rotor centerline and boring and milling machine run, this difference then meets technical requirement as being less than 0.02mm, this difference is as being more than or equal to 0.02mm, then continue adjustment rotor, until this difference is less than 0.02mm,
To resume classes rotor operation, after rotor is adjusted, rotor 1 and V shape iron 21 is compressed with the pressing plate 22 on the workbench of boring and milling machine 1, to resume classes the Up Highway UHW of bearing guard of rotor and side bus with dial gauge 4, ensure that the Up Highway UHW of the bearing guard of the described rotor in its measurement data and described adjustment rotor operation and side bus remain unchanged;
Step S2, school is installed and adjusts frock 3, the end face of the axle stretch end 14 of rotor 1 is installed school and adjusts frock 3, school adjusts the school of frock 3 to adjust datum level 327 level to place upward, dial gauge 4 loaded onto by the main shaft 20 of boring and milling machine 2, the gage outfit of dial gauge 4 is placed on one end that datum level 327 is adjusted in school, the main shaft of boring and milling machine 2 moves forward and backward, dial gauge adjusts one end of datum level 327 to move to the other end from school, if measured value is less than 0.01mm, meet technical requirement, if measured value is more than or equal to 0.01mm, then adjust school and adjust frock 3, until this measured value is less than 0.01mm, then adjust frock 3 on the end face of the axle stretch end 14 of rotor 1 with bolted school, datum level 327 is adjusted with dial gauge repetition measurement school, measured value should be less than 0.01mm,
Step S3, processes the first keyway 151: the center of the first keyway 151 found accurately by the main shaft 20 of boring and milling machine 2, with the first keyway 151 on the cylindrical of the axle stretch end 14 of the milling cutter processing rotor 1 on the main shaft 20 of boring and milling machine 2;
Step S4, process after the second keyway 152: the first keyway 151 processes, unclamp the pressing plate 22 on the workbench of boring and milling machine 2, the bolt that frock 3 is adjusted in fixing school can not be loosened, rotor is rotated 180 °, school adjusts the school of frock 3 to adjust datum level 327 level down, the center of the second keyway 152 found accurately by the main shaft 20 of boring and milling machine 2, dial gauge 4 loaded onto again by the main shaft 20 of boring and milling machine 2, the gage outfit of dial gauge 4 is placed on one end that datum level 327 is adjusted in school, the main shaft 20 of boring and milling machine 2 moves forward and backward, dial gauge 4 adjusts one end of datum level 327 to move to the other end from school, measured value should be less than 0.01mm, after correcting this measured value, with the second keyway 152 on the cylindrical of the axle stretch end 14 of the milling cutter processing rotor 1 on the main shaft 20 of boring and milling machine 2,
Step S5, after the first keyway 151 and the second keyway 152 process, reviews the symmetry of the first keyway 151 and the second keyway 152 with dial gauge 4, confirm the machining accuracy of the first keyway 151 and the second keyway 152 further.
The center that in step S3, the first keyway 151 found accurately by the main shaft 20 of boring and milling machine 2 by adopting the main shaft 20 of boring and milling machine 2 to move up and down to measure the main shaft 20 of boring and milling machine 2 with the relative position of the cylindrical of the axle stretch end 14 of rotor 1 thus finding the center of the first keyway 151 accurately, or finds the center of the first keyway accurately by employing Test-cut met; The Test-cut met center of finding accurately is position milling one cutter processed at the first keyway 151 with the milling cutter on the main shaft 20 of boring and milling machine 2, as long as the degree of depth of processing makes the whole circle of milling cutter process, the situation examining following cutting judges the position at the center of the first keyway 151.
Refer to Fig. 4, school adjusts frock 3 to be arranged on the end face of axle stretch end 14 of rotor, and the end face of the axle stretch end 14 of rotor is provided with seam and four screws, these four screws are distributed on the neighboring of described seam.School adjusts frock 3 to comprise base plate 31 and datum plate 32.
Refer to Fig. 4 a and Fig. 4 b again, base plate 31 is also vertical in round pie to be arranged, the diameter of base plate 31 equals the diameter of the axle stretch end 14 of rotor, the rear surface of base plate 31 is provided with the positioning spigot 311 matched with the seam on the end face of the axle stretch end 14 of rotor, this positioning spigot 311 protrudes backward and is connected in the seam on the end face of the axle stretch end 14 of rotor; Base plate 31 offers the positioning through hole 312 that four front and back of matching correspondingly with four screws on the end face of the axle stretch end 14 of rotor are through, this some positioning through hole 312 is fixed with four screws on the end face of the axle stretch end 14 of rotor correspondingly by bolt; The position that the left and right side of base plate 31 is corresponding to the double bond groove 15 that 180 °, large-size machine shaft extension end distributes offers left-side bottom breach 313 and right side base plate breach 314 correspondingly, facilitates the turnover of milling cutter in process.Left-side bottom breach 313 and right side base plate breach 314 measure-alike, and the width b of left-side bottom breach 313 is greater than the width of corresponding keyway 15, the degree of depth c of left-side bottom breach 313 is greater than the degree of depth of corresponding keyway 15; The position between left-side bottom breach 313 and right side base plate breach 314 of base plate 31 offers the first bottom hole 315, first base plate pin-and-hole 316, second base plate pin-and-hole 317 and the second bottom hole 318 from left to right successively, and the center of the first bottom hole 315, first base plate pin-and-hole 316, second base plate pin-and-hole 317 and the second bottom hole 318 is on same horizontal linear.
Refer to Fig. 4 c and Fig. 4 d again, datum plate 32 is horizontally disposed with, datum plate 32 comprises transverse plate 321 and longitudinal plate 322, and the front end face of longitudinal plate 322 is fitted in the middle part of the rear end face of transverse plate 321 and surrounds T-shaped structure with transverse plate 321, transverse plate 321 and longitudinal plate 322 one-body molded; The length of the rear end face of longitudinal plate 322 is identical with the distance between left-side bottom breach 313 and right side base plate breach 314, and the rear end face of longitudinal plate 322 fits tightly the position between left-side bottom breach 313 and right side base plate breach 314 of the front surface in base plate 31; The rear end face of longitudinal plate 322 offers from left to right successively the first datum plate screw 323, first datum plate pin-and-hole 324, second datum plate pin-and-hole 325 and the second datum plate screw 326, first datum plate screw 323, first datum plate pin-and-hole 324, second datum plate pin-and-hole 325 and the second datum plate screw 326 merging bolt that matches with the first bottom hole 315, first base plate pin-and-hole 316, second base plate pin-and-hole 317 and the second bottom hole 318 to be correspondingly fixedly connected with; The front portion of the upper surface of transverse plate 321 arranges a recessed ledge frame face, and the linearity in this recessed ledge frame face is within 0.01mm, and this recessed ledge frame face is that datum level 327 is adjusted in school.The length of transverse plate 321 equals the diameter of the axle stretch end 14 of rotor.The thickness of longitudinal plate 3122 is equal to or less than the width of keyway 15.The thickness of longitudinal plate 322 is equal with the thickness of transverse plate 321.
In sum, the double bond groove processing method of 180 °, large-size machine shaft extension end distribution of the present invention, the school adopted in processing first keyway and the second keyway process adjusts datum level to be the same same plane comparatively adjusted in frock, error is little, precision is high, rotor 180 ° of running accuracies can be guaranteed, thus ensure the symmetry of two keyways.The double bond groove processing method of 180 °, large-size machine shaft extension end distribution of the present invention can meet the high symmetry requirement of double bond groove, and improve crudy, economic benefit is inestimable.
Above embodiment is used for illustrative purposes only, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, various conversion or modification can also be made, therefore all equivalent technical schemes also should belong to category of the present invention, should be limited by each claim.
Claims (8)
1. a double bond groove processing method for 180 °, large-size machine shaft extension end distribution, is characterized in that, comprise the following steps:
Step S1, installs rotor, comprises adjustment rotor operation and rotor operation of resuming classes:
Adjustment rotor operation, the rotor of large-size machine is kept flat on the workbench of boring and milling machine, rotor is supported with V shape iron, rotor is rotated to suitable position, dial gauge loaded onto by the main shaft of boring and milling machine, the gage outfit of dial gauge is placed on the cylindrical of the bearing guard of rotor, measure Up Highway UHW and the side bus of the bearing guard of rotor, according to size and the actual measured value of the diameter of the bearing guard of rotor, calculate the difference of the straight path that rotor centerline and boring and milling machine run, this difference then meets technical requirement as being less than 0.02mm, this difference is as being more than or equal to 0.02mm, then continue adjustment rotor, until this difference is less than 0.02mm,
To resume classes rotor operation, after rotor is adjusted, rotor and V shape iron is compressed with the pressing plate on the workbench of boring and milling machine, to resume classes the Up Highway UHW of bearing guard of rotor and side bus with dial gauge, ensure that the Up Highway UHW of the bearing guard of the described rotor in its measurement data and described adjustment rotor operation and side bus remain unchanged;
Step S2, school is installed and adjusts frock, the end face of the axle stretch end of rotor is installed school and adjusts frock, school adjusts the school of frock to adjust datum level level to place upward, dial gauge loaded onto by the main shaft of boring and milling machine, the gage outfit of dial gauge is placed on one end that datum level is adjusted in school, the main shaft of boring and milling machine moves forward and backward, dial gauge adjusts one end of datum level to move to the other end from school, if measured value is less than 0.01mm, meet technical requirement, if measured value is more than or equal to 0.01mm, then adjust school and adjust frock, until this measured value is less than 0.01mm, then adjust frock on the end face of the axle stretch end of rotor with bolted school, datum level is adjusted with dial gauge repetition measurement school, measured value should be less than 0.01mm,
Step S3, processes the first keyway: the center of the first keyway found accurately by the main shaft of boring and milling machine, with the first keyway on the cylindrical of the axle stretch end of the milling cutter processing rotor on the main shaft of boring and milling machine;
Step S4, process the second keyway: after the first keyway processes, unclamp the pressing plate on the workbench of boring and milling machine, the bolt that frock is adjusted in fixing school can not be loosened, rotor is rotated 180 °, school adjusts the school of frock to adjust datum level level down, the center of the second keyway found accurately by the main shaft of boring and milling machine, the main shaft of boring and milling machine loads onto dial gauge again, the gage outfit of dial gauge is placed on one end that datum level is adjusted in school, the main shaft of boring and milling machine moves forward and backward, dial gauge adjusts one end of datum level to move to the other end from school, measured value should be less than 0.01mm, after correcting this measured value, with the second keyway on the cylindrical of the axle stretch end of the milling cutter processing rotor on the main shaft of boring and milling machine,
Step S5, after the first keyway and the second keyway process, reviews the symmetry of the first keyway and the second keyway with dial gauge, confirm the machining accuracy of the first keyway and the second keyway further.
2. the double bond groove processing method of 180 °, large-size machine shaft extension end distribution according to claim 1, it is characterized in that, the center of finding the first keyway accurately of the main shaft of boring and milling machine described in described step S3 moves up and down the relative position of the cylindrical measuring the main shaft of boring and milling machine and the axle stretch end of rotor by adopting the main shaft of boring and milling machine thus finds the center of the first keyway accurately, or is found accurately the center of the first keyway by employing Test-cut met; The described Test-cut met center of finding accurately is at position milling one cutter that the first keyway is processed with the milling cutter on the main shaft of described boring and milling machine, as long as the degree of depth of processing makes the whole circle of milling cutter process, the situation examining following cutting judges the position at the center of the first keyway.
3. the double bond groove processing method of 180 °, large-size machine shaft extension end distribution according to claim 1, it is characterized in that, the end face of the axle stretch end of described rotor is provided with seam and some screws, described some screws are distributed on the neighboring of described seam, described school adjusts frock to comprise base plate and datum plate, wherein:
Described base plate is round pie and vertical setting, the diameter of described base plate equals the diameter of the axle stretch end of described rotor, the rear surface of described base plate is provided with the positioning spigot matched with the seam on the end face of the axle stretch end of described rotor, this positioning spigot protrudes backward and is connected in the seam on the end face of described large-size machine shaft extension end;
Described base plate offers the positioning through hole that some front and back of matching correspondingly with the some screws on the end face of the axle stretch end of described rotor are through, this some positioning through hole is fixed with the some screws on the end face of the axle stretch end of described rotor correspondingly by bolt;
The position that the left and right side of described base plate is corresponding to the double bond groove that described 180 °, large-size machine shaft extension end distributes offers left-side bottom breach and right side base plate breach correspondingly;
The position between described left-side bottom breach and right side base plate breach of described base plate offers the first bottom hole, the first base plate pin-and-hole, the second base plate pin-and-hole and the second bottom hole from left to right successively, and the center of described first bottom hole, the first base plate pin-and-hole, the second base plate pin-and-hole and the second bottom hole is on same horizontal linear;
Described datum plate is horizontally disposed with, and described datum plate comprises transverse plate and longitudinal plate, and the front end face of described longitudinal plate is fitted in the middle part of the rear end face of described transverse plate and surrounds T-shaped structure with described transverse plate, described transverse plate and longitudinal plate one-body molded;
The length of the rear end face of described longitudinal plate is identical with the distance between described left-side bottom breach and right side base plate breach, and the rear end face of described longitudinal plate fits tightly the position between described left-side bottom breach and right side base plate breach of the front surface in described base plate; The rear end face of described longitudinal plate offers from left to right successively the first datum plate screw, the first datum plate pin-and-hole, the second datum plate pin-and-hole and the second datum plate screw, the merging that matches with described first bottom hole, the first base plate pin-and-hole, the second base plate pin-and-hole and the second bottom hole correspondingly of described first datum plate screw, the first datum plate pin-and-hole, the second datum plate pin-and-hole and the second datum plate screw is fixedly connected with;
The front portion of the upper surface of described transverse plate arranges a recessed ledge frame face, and the linearity in this recessed ledge frame face is within 0.01mm, and this recessed ledge frame face is that datum level is adjusted in school.
4. the double bond groove processing method of 180 °, large-size machine shaft extension end distribution according to claim 3, it is characterized in that, the length of described transverse plate equals the diameter of the axle stretch end of described rotor.
5. the double bond groove processing method of 180 °, the large-size machine shaft extension end distribution according to claim 3 or 4, it is characterized in that, the thickness of described longitudinal plate is equal to or less than the width of keyway.
6. the double bond groove processing method of 180 °, large-size machine shaft extension end distribution according to claim 3, it is characterized in that, the thickness of described longitudinal plate is equal with the thickness of described transverse plate.
7. the double bond groove processing method of 180 °, large-size machine shaft extension end distribution according to claim 3, it is characterized in that, described left-side bottom breach and right side base plate breach measure-alike, and the width of described left-side bottom breach is greater than the width of corresponding keyway, the degree of depth of described left-side bottom breach is greater than the degree of depth of corresponding keyway.
8. the double bond groove processing method of 180 °, large-size machine shaft extension end distribution according to claim 3, it is characterized in that, the screw number on the end face of the axle stretch end of described rotor is four, and the number of the positioning through hole on described base plate is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410620632.8A CN104439456B (en) | 2014-11-06 | A kind of double bond groove processing method of large-size machine axle stretch end 180 ° distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410620632.8A CN104439456B (en) | 2014-11-06 | A kind of double bond groove processing method of large-size machine axle stretch end 180 ° distribution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104439456A true CN104439456A (en) | 2015-03-25 |
| CN104439456B CN104439456B (en) | 2017-01-04 |
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| CN106425690A (en) * | 2016-11-09 | 2017-02-22 | 北京星航机电装备有限公司 | Device for processing keyway in holes and inspecting symmetry of keyway in holes |
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| CN108747510B (en) * | 2018-09-11 | 2024-03-12 | 上海电气集团上海电机厂有限公司 | Machining tool for herringbone magnetic steel mounting groove of rotor shaft of large synchronous motor |
| CN110216511A (en) * | 2019-06-28 | 2019-09-10 | 巨浪凯龙机床（太仓）有限公司 | A kind of main shaft multi-angle drill bit positioning bolt aligning tool and bearing calibration |
| CN110216511B (en) * | 2019-06-28 | 2024-03-22 | 巨浪凯龙机床（太仓）有限公司 | Correcting tool and correcting method for multi-angle drill bit positioning bolt of main shaft |
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| CN111571132A (en) * | 2020-05-15 | 2020-08-25 | 中国航发哈尔滨轴承有限公司 | Thin-wall bearing outer ring turning method and outer ring end surface groove symmetry measuring method of thin-wall bearing |
| CN112676881A (en) * | 2020-12-17 | 2021-04-20 | 郑州明泰交通新材料有限公司 | Machining and inspection tool for subway floor inserting strips |
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