CN117696994B - Machining device and machining method for double-end key milling groove of motor shaft - Google Patents
Machining device and machining method for double-end key milling groove of motor shaft Download PDFInfo
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- CN117696994B CN117696994B CN202311628636.6A CN202311628636A CN117696994B CN 117696994 B CN117696994 B CN 117696994B CN 202311628636 A CN202311628636 A CN 202311628636A CN 117696994 B CN117696994 B CN 117696994B
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- 238000003754 machining Methods 0.000 title claims abstract description 40
- 238000003801 milling Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims description 33
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
Classifications
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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
- B23C3/305—Milling straight grooves, e.g. keyways in which more than one milling tool is used simultaneously, e.g. for sheet material
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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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
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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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a device and a method for machining double-ended key milling grooves of a motor shaft, and belongs to the technical field of milling. The motor shaft double-end key slot milling device comprises a workbench, a locking mechanism for fixing a workpiece is arranged above the workbench, cutter spindles are arranged on two sides of the locking mechanism, and a moving mechanism for driving the cutter spindles to move on the workbench is arranged on the workbench; the locking mechanism comprises a positioning block, a mounting plate for pressing a workpiece is arranged above the positioning block, one end of the mounting plate is connected with a corner oil cylinder, the corner oil cylinder is connected with a hydraulic station, and the hydraulic station is electrically connected with the controller. According to the device and the method for machining the double-end key groove of the motor shaft, the two milling cutters are adopted to machine the key groove on the motor shaft at the same time, so that the symmetrical groove on the motor shaft can be machined through one-time clamping, the machining efficiency of machining the symmetrical key groove on the motor shaft is improved, and the machining symmetry of the symmetrical key groove is also improved.
Description
Technical Field
The invention relates to the technical field of milling, in particular to a device and a method for machining a double-head key groove of a motor shaft.
Background
The motor shaft is a key component on the motor for inputting or outputting rotation to or from the motor, and thus, a transmission member is required to be mounted on the motor shaft. The driving medium on the motor relies on the keyway on the motor to install and fix. In order to improve the stability of the installation of the transmission piece, two symmetrical key grooves are milled on a motor shaft by adopting a milling cutter, and the symmetry degree of the key grooves on the motor shaft is required to be higher, otherwise, the assembly of the transmission piece is influenced. The milling processing of the existing motor shaft generally adopts a milling cutter to firstly process a key slot, then the motor shaft is rotated, and then the other key slot is processed, so that repeated clamping of the motor shaft is required, the processing efficiency of the motor shaft is affected on one hand, and the symmetry of the key slot processing is reduced due to the clamping error on the other hand.
Disclosure of Invention
The invention aims to provide a double-end key groove machining device and a double-end key groove machining method for a motor shaft, which are used for machining key grooves on the motor shaft by adopting two milling cutters, so that machining of symmetrical grooves on the motor shaft can be completed by one-time clamping, the machining efficiency of machining the symmetrical key grooves on the motor shaft is improved, and the machining symmetry of the symmetrical key grooves is also improved.
In order to achieve the above purpose, the invention provides a motor shaft double-end key slot machining device, which comprises a workbench, wherein a locking mechanism for fixing a workpiece is arranged above the workbench, cutter spindles are arranged on two sides of the locking mechanism, and a moving mechanism for driving the cutter spindles to move on the workbench is arranged on the workbench; the locking mechanism comprises a positioning block, a mounting plate for pressing a workpiece is arranged above the positioning block, one end of the mounting plate is connected with a corner oil cylinder, the corner oil cylinder is connected with a hydraulic station, and the hydraulic station is electrically connected with the controller.
Preferably, the top end of the positioning block is provided with a V-shaped opening, and the workpiece is placed in the V-shaped opening.
Preferably, the positioning structure for positioning the workpiece is arranged on the positioning block, the positioning structure comprises an adjusting plate, the adjusting plate is arranged on one side of the positioning block in a sliding manner, a fixing rod is arranged in the middle of the top end of the adjusting plate, a second supporting block for supporting the workpiece is arranged on the top end of the fixing rod, slide bars are symmetrically arranged on two sides of the fixing rod, an inclined transmission groove is arranged on the adjusting plate, a bayonet lock inserted into the transmission groove is arranged on the slide bars, the bayonet lock is in sliding connection with the transmission groove, first supporting blocks are arranged on the top end of the slide bars, two first supporting blocks are positioned on two sides of the workpiece and are connected with a central axis of the workpiece, the second supporting block is positioned at the bottom end of the workpiece, a lifting cylinder for driving the adjusting plate to slide up and down on the positioning block is arranged on the positioning block, and the lifting cylinder is connected with the hydraulic station.
Preferably, the acute angle between the transmission groove and the horizontal plane is 45 degrees.
Preferably, the positioning block is provided with a vertical guide rail with a guiding function on the sliding of the adjusting plate, the adjusting plate is provided with a guide groove matched with the guide rail, and the guide rail is positioned in the guide groove and is in sliding connection with the guide groove; the adjusting plate is provided with a horizontal limiting table, the slide bar is provided with a groove matched with the limiting table, and the limiting table is positioned in the groove and is in sliding connection with the groove.
Preferably, a pressing structure for pressing the workpiece is arranged below the mounting plate, and the pressing structure is symmetrically arranged on the mounting plates of the two corner oil cylinders; the pressing structure comprises a fixed block, wherein the fixed block is fixedly arranged on the mounting plate, a sliding block is arranged below the fixed block, a lower inclined surface is arranged on the lower surface of the fixed block, an upper inclined surface matched with the lower inclined surface is arranged on the upper surface of the sliding block, the sliding block slides along the lower inclined surface of the fixed block, and a pressing plate contacted with a workpiece is arranged at the bottom end of the sliding block; the lower inclined surface of the fixed block is provided with a guide bar, the sliding block is provided with a guide groove matched with the guide bar, and the guide bar is positioned in the guide groove and is in sliding connection with the guide groove; one end of the fixed block is provided with a fixed plate, and a spring is arranged between the fixed plate and the sliding block.
Preferably, the workbench is provided with a code scanning gun, and the code scanning gun is electrically connected with the controller.
Preferably, the positioning block and the corner oil cylinder are arranged on the sliding plate, the sliding plate is in sliding connection with the workbench, the jackscrew is arranged on the sliding plate and in threaded connection with the sliding plate, the workbench is provided with a locking groove, the bottom end of the jackscrew is inserted into the locking groove, and the bottom surface of the locking groove is provided with locking teeth matched with anti-skidding patterns at the bottom end of the jackscrew.
Preferably, the moving mechanism comprises a stand column, the stand column is fixedly arranged on the workbench, a cross beam is arranged on the stand column in a sliding mode, and a screw nut transmission pair for driving the cross beam to slide up and down is arranged on the stand column; the cross beam is provided with a longitudinal beam vertical to the cross beam, and is provided with a screw-nut transmission pair for driving the longitudinal beam to horizontally slide along the length direction of the cross beam; the tool spindle is arranged on the longitudinal beam, and a screw-nut transmission pair for driving the tool spindle to horizontally slide along the length direction of the longitudinal beam is arranged on the longitudinal beam.
The processing method of the motor shaft double-end key groove processing device comprises the following steps:
S1, loosening a jackscrew, sliding a sliding plate along a locking groove, adjusting the positions of a positioning block and a corner oil cylinder on the sliding plate, screwing the jackscrew, and fixing the sliding plate and a workbench;
s2, placing a workpiece at V-shaped openings of two positioning blocks, starting a lifting oil cylinder, driving an adjusting plate to slide along a guide rail by the lifting oil cylinder, driving a sliding rod to slide horizontally along a limiting table by the adjusting plate through a transmission groove, and enabling a first supporting block and a second supporting block to be in contact with the surface of the workpiece;
S3, starting a corner oil cylinder, wherein the corner oil cylinder drives a mounting plate to rotate and press downwards, the mounting plate drives a fixed block and a sliding block to synchronously press downwards, and a pressing plate is tightly pressed above a workpiece to lock and fix the workpiece;
And S4, starting the cutter main shaft, driving the cutter main shaft to slide in the three-dimensional direction through the upright post, the cross beam and the longitudinal beam, and milling the groove on the workpiece.
The double-end key groove machining device and the double-end key groove machining method for the motor shaft have the advantages that:
1. The cutter spindles are arranged on two sides of the positioning block, and the workpiece is machined through the cutter spindles on two sides, so that the machining efficiency of the workpiece is improved. And repeated clamping of the workpiece is not needed, so that symmetry of key groove processing on the workpiece is improved.
2. The positioning block is provided with a positioning structure, the workpiece is positioned through the positioning structure, the first supporting block and the second supporting block of the positioning structure are always contacted with the surfaces of the workpieces with different diameters simultaneously, the positioning center of the different workpieces is ensured to be unchanged, the processing uniformity of the milling grooves of the workpiece is improved, the determination of the reference of the main shaft of the cutter is facilitated, and the processing of the workpiece is facilitated.
3. Be provided with the compress tightly structure on the mounting panel of corner hydro-cylinder, when the work piece took place to slide, the compress tightly structure can be with the tighter of work piece pressure, is favorable to improving the fixed stability of work piece, improves milling flutes processing's quality and precision.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a schematic diagram of a device and a method for machining a double-ended key slot of a motor shaft according to an embodiment of the present invention;
FIG. 2 is a schematic side view of a locking mechanism of an embodiment of a device and method for machining a double-ended key slot of a motor shaft;
FIG. 3 is a schematic diagram showing the front structure of a locking mechanism of an embodiment of a device and a method for machining a double-ended key slot of a motor shaft;
FIG. 4 is a schematic side view of a pressing structure of an embodiment of a device and a method for machining a double-ended key slot of a motor shaft;
Fig. 5 is a schematic front view of a pressing structure of an embodiment of a device and a method for machining a double-ended key slot of a motor shaft.
Reference numerals
1. A work table; 2. a column; 3. a cross beam; 4. a longitudinal beam; 5. a cutter spindle; 6. a positioning block; 7. a corner oil cylinder; 8. a slide plate; 9. a controller; 10. a hydraulic station; 11. a code scanning gun; 12. a mounting plate; 13. an adjustment plate; 14. a slide bar; 15. a transmission groove; 16. a first support block; 17. a fixed rod; 18. a second support block; 19. a guide rail; 20. a limiting table; 21. a lifting oil cylinder; 22. a jackscrew; 23. a fixed block; 24. a slide block; 25. a pressing plate; 26. a conducting bar; 27. a fixing plate; 28. a spring; 29. a locking groove; 30. a workpiece.
Detailed Description
The technical scheme of the invention is further described below through the attached drawings and the embodiments.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
Examples
As shown in fig. 1 to 5, a double-ended key slot machining device for a motor shaft comprises a workbench 1, wherein the workbench 1 is fixedly supported on the ground through supporting legs. A locking mechanism for fixing the workpiece 30 is provided above the table 1. The locking mechanism comprises two positioning blocks 6, in this embodiment, the two positioning blocks 6 are located on the same straight line, and the positioning blocks 6 are used for supporting and positioning the motor shaft workpiece 30. A mounting plate 12 for pressing the workpiece 30 is arranged above the positioning block 6, and one end of the mounting plate 12 is connected with the corner oil cylinder 7. The corner oil cylinder 7 is connected with a hydraulic station 10, and the hydraulic station 10 is electrically connected with a controller 9. The corner oil cylinder 7 drives the mounting plate 12 to rotate and press downwards, and is pressed above the workpiece 30 through the mounting plate 12, so that the workpiece 30 is fixed between the mounting plate 12 and the positioning block 6, and the stability of the workpiece 30 during milling is improved.
The top end of the positioning block 6 is provided with a V-shaped opening, and the workpiece 30 is placed in the V-shaped opening. Rectangular avoidance holes are formed in the bottom end of the V-shaped opening, so that the workpiece 30 is avoided on one hand, and the stress concentration of the bottom end of the V-shaped opening can be relieved on the other hand, and the strength of the bottom end of the V-shaped opening is improved.
The positioning blocks 6 are provided with positioning structures for positioning the workpieces 30, and the positioning structures are arranged on the side faces, facing away from the two positioning blocks 6. The positioning structure comprises an adjusting plate 13, and the adjusting plate 13 is arranged on one side of the positioning block 6 in a sliding manner. A fixing rod 17 is fixedly arranged in the middle of the top end of the adjusting plate 13, and a second supporting block 18 for supporting the workpiece 30 is arranged at the top end of the fixing rod 17. Slide bars 14 are symmetrically arranged on two sides of the fixed rod 17, and inclined transmission grooves 15 are arranged on the adjusting plate 13. The slide bar 14 is provided with a bayonet lock inserted into the transmission groove 15, and the bayonet lock is in sliding connection with the transmission groove 15. The slide bar 14 slides along the transmission groove 15 by means of a bayonet lock. The two transmission grooves 15 are arranged in parallel, so that the sliding stability of the sliding rod 14 is improved. The top end of the slide bar 14 is provided with a first support block 16. The two first support blocks 16 are positioned on two sides of the workpiece 30, and the connecting line of the two first support blocks 16 passes through the central axis of the workpiece 30; the second support block 18 is located at the bottom end of the workpiece 30. The positioning block 6 is provided with a lifting oil cylinder 21 which drives the adjusting plate 13 to slide up and down on the positioning block 6, and the lifting oil cylinder 21 is connected with the hydraulic station 10.
The positioning block 6 is provided with a vertical guide rail 19 with a guiding function on the sliding of the adjusting plate 13, the adjusting plate 13 is provided with a guide groove matched with the guide rail 19, and the guide rail 19 is positioned in the guide groove and is in sliding connection with the guide groove. The adjusting plate 13 is provided with a horizontal limiting table 20, the slide bar 14 is provided with a groove matched with the limiting table 20, and the limiting table 20 is positioned in the groove and is in sliding connection with the groove.
The transmission groove 15 has an acute angle of 45 ° with the horizontal plane. When the slide bar 14 is driven to move by the adjusting plate 13, the height of the second supporting block 18 driven by the adjusting plate 13 is equal to the length of the first supporting block 16 driven by the slide bar 14 to move left and right, so that the first supporting block 16 and the second supporting block 18 can always contact with the outer surface of the cylindrical workpiece 30, and the circle center positions of the first supporting block 16 and the second supporting block 18 are unchanged. The center of the workpiece 30 positioned by the positioning structure is determined, so that the determination of the reference of the machining of the tool spindle 5 is facilitated, repeated setting of the machining reference is not needed, and the milling of the tool spindle 5 is facilitated.
A pressing structure for pressing the workpiece 30 is arranged below the mounting plate 12, and the pressing structure is symmetrically arranged on the mounting plates 12 of the two corner oil cylinders 7. The compression structure includes a fixed block 23, the fixed block 23 being fixedly disposed on the mounting plate 12. The slider 24 is arranged below the fixed block 23, the lower surface of the fixed block 23 is provided with a lower inclined plane, the upper surface of the slider 24 is provided with an upper inclined plane matched with the lower inclined plane, and the slider 24 slides along the lower inclined plane of the fixed block 23. The lower inclined surface of the fixed block 23 is provided with a guide bar 26, the sliding block 24 is provided with a guide groove matched with the guide bar 26, and the guide bar 26 is positioned in the guide groove and is in sliding connection with the guide groove. To improve the sliding stability of the slider 24, the guide bar 26 may be configured as a T-bar or dovetail bar. The bottom end of the sliding block 24 is fixedly provided with a pressing plate 25 which is in contact with the workpiece 30, a rubber protective layer can be arranged on the bottom surface of the pressing plate 25, and when the workpiece 30 is pressed by the pressing plate 25, the surface of the workpiece 30 is protected. One end of the fixed block 23 is provided with a fixed plate 27, and a spring 28 is provided between the fixed plate 27 and the slider 24.
When the mounting plate 12 drives the fixed block 23, the sliding block 24 and the pressing plate 25 to press the workpiece 30, and the workpiece 30 slides left and right in the machining process, the workpiece 30 drives the sliding block 24 to slide along the guide bar 26 through the pressing plate 25, the sliding block 24 moves down along the guide bar 26 in the process of sliding left and right, the precompressed spring 28 also applies thrust to the sliding block 24, so that the sliding block 24 drives the pressing plate 25 to move down and tightly press the surface of the workpiece 30, and the fixing stability of the workpiece 30 is improved. Because the compaction structures are symmetrically arranged, when the workpiece 30 slides left and right, the pressure on the workpiece 30 can be increased, the stability of fixing the workpiece 30 is improved, and the machining precision is improved.
The positioning block 6 and the corner oil cylinder 7 are arranged on the sliding plate 8, and the sliding plate 8 is in sliding connection with the workbench 1. The slide plate 8 is provided with jackscrews 22, and the jackscrews 22 are in threaded connection with the slide plate 8. The workbench 1 is provided with a locking groove 29, and the bottom end of the jackscrew 22 is inserted into the locking groove 29. The locking teeth which are matched with the anti-skid patterns at the bottom end of the jackscrew 22 are arranged on the bottom surface of the locking groove 29. The jackscrew 22 is rotated, and the locking teeth in the locking groove 29 are tightly propped by the jackscrew 22, so that the locking and fixing of the sliding plate 8 and the workbench 1 are realized. The sliding plates 8 can slide along the locking grooves 29 on the workbench 1 by loosening the jackscrews 22, so that the distance between the two sliding plates 8 is adjusted, and the positioning block 6 and the corner oil cylinder 7 avoid the processing position of the workpiece 30.
The two sides of the locking mechanism are provided with cutter spindles 5, and the workbench 1 is provided with a moving mechanism for driving the cutter spindles 5 to move on the workbench 1. The tool spindle 5 is driven by the moving mechanism to move in three dimensions, so that the workpiece 30 is subjected to slot milling. The cutter spindles 5 on two sides of the locking mechanism can simultaneously mill the key grooves on two sides of the workpiece 30, so that the processing efficiency of the workpiece 30 is improved.
The moving mechanism comprises an upright post 2, and the upright post 2 is fixedly arranged on the workbench 1. The upright post 2 is provided with a cross beam 3 in a sliding way, and the upright post 2 is provided with a screw nut transmission pair for driving the cross beam 3 to slide up and down. The screw-nut transmission pair is of an existing structure, the screw is driven to rotate through the motor, and the screw is meshed with a nut on the cross beam 3 for transmission, so that the cross beam 3 is driven to slide up and down along the upright post 2. The upright post 2 is provided with a sliding rail with a guiding function on the cross beam 3. The beam 3 is provided with a longitudinal beam 4 vertical to the beam 3, and the beam 3 is provided with a screw-nut transmission pair for driving the longitudinal beam 4 to horizontally slide along the length direction of the beam 3. The tool spindle 5 is arranged on the longitudinal beam 4, and a screw-nut transmission pair for driving the tool spindle 5 to horizontally slide along the length direction of the longitudinal beam 4 is arranged on the longitudinal beam 4. The spindle 5 is driven to slide in the X, Y, Z three-dimensional direction by the screw nut transmission pair, and the spindle 5 drives the tool to rotate, so that a key groove is milled on the surface of the workpiece 30.
The working table 1 is provided with the code scanning gun 11, and the process code on the motor shaft is scanned through the code scanning gun 11, so that the processing flow of the motor shaft can be checked, an operator, operation equipment and specific parameters are recorded, and the workpiece 30 is prevented from leaking out of the processing procedure. The code scanning gun 11 is connected with the controller 9 according to specific requirements by adopting the prior art.
The processing method of the motor shaft double-end key groove processing device comprises the following steps:
s1, loosening the jackscrew 22, sliding the sliding plate 8 along the locking groove 29, adjusting the positions of the positioning block 6 and the corner oil cylinder 7 on the sliding plate 8, screwing the jackscrew 22, and fixing the sliding plate 8 and the workbench 1.
S2, placing the workpiece 30 at the V-shaped openings of the two positioning blocks 6, starting the lifting oil cylinder 21, driving the adjusting plate 13 to slide along the guide rail 19 by the lifting oil cylinder 21, driving the slide rod 14 to slide horizontally along the limiting table 20 by the adjusting plate 13 through the transmission groove 15, and enabling the first supporting block 16 and the second supporting block 18 to be in surface contact with the workpiece 30.
S3, starting the corner oil cylinder 7, enabling the corner oil cylinder 7 to drive the mounting plate 12 to rotate and press downwards, enabling the mounting plate 12 to drive the fixed block 23 and the sliding block 24 to synchronously press downwards, and enabling the pressing plate 25 to be tightly pressed above the workpiece 30 to lock and fix the workpiece 30.
S4, starting the cutter spindle 5, driving the cutter spindle 5 to slide in the three-dimensional direction through the upright post 2, the cross beam 3 and the longitudinal beam 4, and milling the groove on the workpiece 30.
Therefore, the double-end key groove machining device and the double-end key groove machining method for the motor shaft adopt two milling cutters to machine the key groove on the motor shaft at the same time, and the symmetrical groove on the motor shaft can be machined through one-time clamping, so that the machining efficiency of machining the symmetrical key groove on the motor shaft is improved, and the symmetry of machining the symmetrical key groove is also improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting it, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the invention can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the invention.
Claims (4)
1. A motor shaft double-end key groove processing device is characterized in that: the device comprises a workbench, wherein a locking mechanism for fixing a workpiece is arranged above the workbench, cutter spindles are arranged on two sides of the locking mechanism, and a moving mechanism for driving the cutter spindles to move on the workbench is arranged on the workbench; the locking mechanism comprises a positioning block, a mounting plate for pressing a workpiece is arranged above the positioning block, one end of the mounting plate is connected with a corner oil cylinder, the corner oil cylinder is connected with a hydraulic station, and the hydraulic station is electrically connected with the controller;
the top end of the positioning block is provided with a V-shaped opening, and a workpiece is placed in the V-shaped opening;
The positioning structure comprises an adjusting plate, the adjusting plate is arranged on one side of the positioning block in a sliding mode, a fixed rod is arranged in the middle of the top end of the adjusting plate, a second supporting block for supporting the workpiece is arranged on the top end of the fixed rod, sliding rods are symmetrically arranged on two sides of the fixed rod, an inclined transmission groove is formed in the adjusting plate, a bayonet lock inserted into the transmission groove is arranged on the sliding rods, the bayonet lock is in sliding connection with the transmission groove, first supporting blocks are arranged on the top end of the sliding rod, two first supporting blocks are located on two sides of the workpiece, a connecting line of the two first supporting blocks passes through the central axis of the workpiece, the second supporting block is located at the bottom end of the workpiece, a lifting oil cylinder for driving the adjusting plate to slide up and down on the positioning block is arranged on the positioning block, and the lifting oil cylinder is connected with a hydraulic station;
The positioning block is provided with a vertical guide rail which has a guiding function on the sliding of the adjusting plate, the adjusting plate is provided with a guide groove matched with the guide rail, and the guide rail is positioned in the guide groove and is in sliding connection with the guide groove; the adjusting plate is provided with a horizontal limiting table, the sliding rod is provided with a groove matched with the limiting table, and the limiting table is positioned in the groove and is in sliding connection with the groove;
A pressing structure for pressing the workpiece is arranged below the mounting plate, and the pressing structure is symmetrically arranged on the mounting plates of the two corner oil cylinders; the pressing structure comprises a fixed block, wherein the fixed block is fixedly arranged on the mounting plate, a sliding block is arranged below the fixed block, a lower inclined surface is arranged on the lower surface of the fixed block, an upper inclined surface matched with the lower inclined surface is arranged on the upper surface of the sliding block, the sliding block slides along the lower inclined surface of the fixed block, and a pressing plate contacted with a workpiece is arranged at the bottom end of the sliding block; the lower inclined surface of the fixed block is provided with a guide bar, the sliding block is provided with a guide groove matched with the guide bar, and the guide bar is positioned in the guide groove and is in sliding connection with the guide groove; one end of the fixed block is provided with a fixed plate, and a spring is arranged between the fixed plate and the sliding block;
The positioning block and the corner oil cylinder are arranged on the sliding plate, the sliding plate is in sliding connection with the workbench, the sliding plate is provided with a jackscrew which is in threaded connection with the sliding plate, the workbench is provided with a locking groove, the bottom end of the jackscrew is inserted into the locking groove, and the bottom surface of the locking groove is provided with locking teeth which are matched with anti-skidding patterns at the bottom end of the jackscrew;
The moving mechanism comprises a stand column, the stand column is fixedly arranged on the workbench, a cross beam is arranged on the stand column in a sliding mode, and a screw nut transmission pair for driving the cross beam to slide up and down is arranged on the stand column; the cross beam is provided with a longitudinal beam vertical to the cross beam, and is provided with a screw-nut transmission pair for driving the longitudinal beam to horizontally slide along the length direction of the cross beam; the tool spindle is arranged on the longitudinal beam, and a screw-nut transmission pair for driving the tool spindle to horizontally slide along the length direction of the longitudinal beam is arranged on the longitudinal beam.
2. The motor shaft double-ended key slot machining device according to claim 1, wherein: the acute angle between the transmission groove and the horizontal plane is 45 degrees.
3. The motor shaft double-ended key slot machining device according to claim 2, wherein: the workbench is provided with a code scanning gun which is electrically connected with the controller.
4. A machining method based on the motor shaft double-end key groove machining device according to claim 3, characterized by comprising the following steps:
S1, loosening a jackscrew, sliding a sliding plate along a locking groove, adjusting the positions of a positioning block and a corner oil cylinder on the sliding plate, screwing the jackscrew, and fixing the sliding plate and a workbench;
s2, placing a workpiece at V-shaped openings of two positioning blocks, starting a lifting oil cylinder, driving an adjusting plate to slide along a guide rail by the lifting oil cylinder, driving a sliding rod to slide horizontally along a limiting table by the adjusting plate through a transmission groove, and enabling a first supporting block and a second supporting block to be in contact with the surface of the workpiece;
S3, starting a corner oil cylinder, wherein the corner oil cylinder drives a mounting plate to rotate and press downwards, the mounting plate drives a fixed block and a sliding block to synchronously press downwards, and a pressing plate is tightly pressed above a workpiece to lock and fix the workpiece;
And S4, starting the cutter main shaft, driving the cutter main shaft to slide in the three-dimensional direction through the upright post, the cross beam and the longitudinal beam, and milling the groove on the workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311628636.6A CN117696994B (en) | 2023-11-30 | 2023-11-30 | Machining device and machining method for double-end key milling groove of motor shaft |
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| CN2790646Y (en) * | 2005-05-30 | 2006-06-28 | 何凯 | Railway vehicle center plater vertical milling machine |
| CN202428015U (en) * | 2011-08-31 | 2012-09-12 | 长城汽车股份有限公司 | Keyway milling processing equipment |
| CN205571505U (en) * | 2016-04-29 | 2016-09-14 | 沃得精机(中国)有限公司 | Flat guide double -end vertical milling special plane |
| CN206464590U (en) * | 2017-01-24 | 2017-09-05 | 湖北名泰农机有限公司 | A kind of duplex head milling machine for being used to process rice transplanter driving shaft |
| CN107552851A (en) * | 2017-10-31 | 2018-01-09 | 济南大学 | The milling attachment and method of long shaft key groove |
| CN207386671U (en) * | 2017-07-03 | 2018-05-22 | 泸州市诚润机械有限公司 | The duplex head milling machine of slot in a kind of milling workpiece |
| CN113182573A (en) * | 2021-04-08 | 2021-07-30 | 浙江万里扬智能传动有限公司 | Double-groove milling device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230302552A1 (en) * | 2020-09-08 | 2023-09-28 | Ningbo C.S.I. Power & Machinery Group Co., Ltd. | Horizontal computer numerical control (cnc) machining device for crankshaft |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2790646Y (en) * | 2005-05-30 | 2006-06-28 | 何凯 | Railway vehicle center plater vertical milling machine |
| CN202428015U (en) * | 2011-08-31 | 2012-09-12 | 长城汽车股份有限公司 | Keyway milling processing equipment |
| CN205571505U (en) * | 2016-04-29 | 2016-09-14 | 沃得精机(中国)有限公司 | Flat guide double -end vertical milling special plane |
| CN206464590U (en) * | 2017-01-24 | 2017-09-05 | 湖北名泰农机有限公司 | A kind of duplex head milling machine for being used to process rice transplanter driving shaft |
| CN207386671U (en) * | 2017-07-03 | 2018-05-22 | 泸州市诚润机械有限公司 | The duplex head milling machine of slot in a kind of milling workpiece |
| CN107552851A (en) * | 2017-10-31 | 2018-01-09 | 济南大学 | The milling attachment and method of long shaft key groove |
| CN113182573A (en) * | 2021-04-08 | 2021-07-30 | 浙江万里扬智能传动有限公司 | Double-groove milling device |
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| CN117696994A (en) | 2024-03-15 |
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Denomination of invention: A double ended milling keyway machining device and machining method for motor shaft Granted publication date: 20240531 Pledgee: Postal Savings Bank of China Limited Shangrao Guangfeng District sub branch Pledgor: JIANGXI TONGXIN MACHINERY MANUFACTURING CO.,LTD. Registration number: Y2024980041454 |