Embedded assembly device and assembly method of permanent magnet synchronous motor rotor magnetic steel

Abstract

The present invention relates to an embedded assembly device for permanent magnet synchronous motor rotor magnetic steel and an assembly method thereof. The embedded assembly device for permanent magnet synchronous motor rotor magnetic steel comprises a base, a first plate fixedly mounted on the base, and a second plate fixed on one side of the first plate, and further comprises: a disc movably arranged on the base and connected to a movable supporting mechanism mounted on the base, the disc also being provided with a folding and limiting mechanism; a pushing and feeding mechanism mounted on the first plate, and the pushing and feeding mechanism cooperating with a reciprocating lifting mechanism mounted on the second plate, the pushing and feeding mechanism being triggered in the first stroke of the reciprocating lifting mechanism, and performing a pushing action on the arranged magnetic steel, through the mutual cooperation between various mechanisms and components, and mechanically interlocking the embedding of the magnetic steel with the displacement of the motor rotor, and realizing automatic assembly through a mechanical structure, thus greatly reducing the failure rate of the equipment.

Description

Technical Field

[0001] The invention relates to the field of motor rotors, and in particular to an embedded assembly device for permanent magnet synchronous motor rotor magnetic steel and an assembly method thereof. Background Art

[0002] Permanent magnet synchronous motors are similar to traditional motors in that they are mainly composed of two parts: a stator and a rotor. The rotor is mainly composed of permanent magnets, a rotor core, and a rotating shaft. Among all types of drive motors, permanent magnet synchronous motors have high energy density, high efficiency, small size, small inertia, and fast response, and have good application prospects.

[0003] Among them, permanent magnets are mainly made of ferrite permanent magnets and neodymium iron boron permanent magnets; the rotor core can be made of solid steel, or stamped and laminated steel plates or silicon steel sheets according to the different magnetic pole structures. Compared with ordinary motors, permanent magnet synchronous motors must also be equipped with rotor permanent magnet position detectors to detect the magnetic pole position and control the stator current to achieve the purpose of driving and controlling the permanent magnet synchronous motor.

[0004] Nowadays, when assembling motor rotor magnets, workers usually assemble them manually. This is labor-intensive and difficult to improve work efficiency. In response to this, there are some devices on the market for automatic magnet assembly, but these devices usually rely too much on circuit control and sensors. Since sensors have high requirements for the working environment, the failure rate of the equipment is high, making it difficult to achieve the ideal production effect. Summary of the invention

[0005] The object of the present invention is to provide an embedded assembly device for permanent magnet synchronous motor rotor magnetic steel and an assembly method thereof to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An embedded assembly device for a permanent magnet synchronous motor rotor magnetic steel comprises a base, a first plate fixedly mounted on the base, and a second plate fixed to one side of the first plate, and further comprises:

[0008] A disc, movably arranged on the base and connected to a movable supporting mechanism installed on the base, the disc is also provided with a folding and limiting mechanism, and the folding and limiting mechanism is used to fix the motor rotor;

[0009] A push-feeding mechanism is installed on the first plate, and the push-feeding mechanism cooperates with a reciprocating lifting mechanism installed on the second plate. The push-feeding mechanism is triggered in the first stroke of the reciprocating lifting mechanism, and performs a pushing action on the arranged magnetic steels, so that the reciprocating lifting mechanism performs a downward pressing and embedding action on the pushed magnetic steels into the motor rotor;

[0010] The Maltese cross movement mechanism is installed on the second plate and is connected to the reciprocating lifting mechanism and the movable supporting mechanism respectively. The movable supporting mechanism moves after the Maltese cross movement mechanism drives the reciprocating lifting mechanism to complete the downward pressing and embedding action, and prompts the disc to rotate so that the motor rotor performs the transposition action.

[0011] As a further solution of the present invention: the pushing feeding mechanism comprises a box body fixed to the top of the first plate, and a discharging member fixed to an end of the box body away from the first plate, and a through hole for the magnetic steel to enter is provided at the connection between the discharging member and the box body, so as to form a transmission path for the magnetic steel;

[0012] Wherein, a screw rod is rotatably mounted on the first plate member, and a transverse plate is provided on the screw rod which is threadedly connected thereto, and the transverse plate is slidably connected to a guide rod fixed on the first plate member.

[0013] As a further solution of the present invention: a deep hole is provided on the transverse plate, a telescopic rod is slidably provided in the deep hole, one end of the telescopic rod is connected to a cylindrical spring provided in the deep hole, and the other end passes through the box body, and a strip-shaped through groove is provided on the box body for the movement of the telescopic rod.

[0014] As a further solution of the present invention: the Maltese cross movement mechanism comprises a motor mounted on the second plate, a driving wheel fixed on the output shaft of the motor, and a first driven wheel and a second driven wheel rotatably mounted on the second plate;

[0015] Wherein, the rotating shaft of the first driven wheel is connected to the reciprocating lifting mechanism, and the rotating shaft of the second driven wheel is connected to the movable supporting mechanism.

[0016] As a further solution of the present invention: the reciprocating lifting mechanism includes two cross bars fixed to the bottom of the second plate, a push-pull plate slidably arranged on the two cross bars, and a cam rotatably mounted on the second plate;

[0017] The rotating shafts of the cam and the first driven wheel are connected through a second transmission belt, the push-pull plate is connected to a lifting plate slidably arranged in the discharge member through two connecting rods, and the two ends of the connecting rod are respectively hinged to the lifting plate and the push-pull plate;

[0018] Two strips are also fixed on the push-pull plate, a gap is reserved between the two strips, and a column is fixed on the cam, which extends into the gap and is slidably connected with the two strips.

[0019] As a further solution of the present invention: a ratchet is rotatably mounted on the bottom of the second plate, a long strip is fixed on one side of the push-pull plate, and a plurality of inclined grooves are equidistantly provided on the bottom of the long strip along its length direction, and a pawl cooperating with the ratchet is hinged in each of the inclined grooves, and the rotating shaft of the ratchet is connected to the first transmission shaft rotatably mounted on the second plate through a bevel gear set, and the first transmission shaft is connected to the screw rod through a first transmission belt.

[0020] As a further solution of the present invention: the movable support mechanism includes a rotating shaft rotatably mounted on the base and a sleeve slidably sleeved with the rotating shaft, the disc is fixed to an end of the sleeve away from the base, the rotating shaft is connected to a second transmission shaft rotatably mounted on the base through a fourth transmission belt, and the second transmission shaft is connected to the rotating shaft of the second driven wheel through a third transmission belt;

[0021] The outer circumference of the rotating shaft is provided with a plurality of strip-shaped protrusions at equal intervals along the circumference, and the inner wall of the sleeve is provided with a plurality of strip-shaped grooves at equal intervals along the circumference, the strip-shaped grooves are adapted to the strip-shaped protrusions, and the two are parallel to the central axis of the rotating shaft;

[0022] A plurality of cylinders are also mounted on the base, and an assembly plate is fixed to the movable ends of the plurality of cylinders, and the assembly plate is rotatably connected to the sleeve.

[0023] As a further solution of the present invention: the folding and limiting mechanism includes a sliding structure installed on the disc and a threaded drive assembly installed on the sleeve and cooperating with the sliding structure, the sliding structure includes a plurality of fixed blocks fixed at equal intervals along the circumference at the bottom of the disc and a sliding block slidably embedded in the fixed blocks, and a locking column passing through the disc is fixed on the sliding block, and a pulley cooperating with the threaded drive assembly is also rotatably installed.

[0024] As a further solution of the present invention: the thread drive assembly includes a sleeve sleeved on the sleeve and threadedly connected to the sleeve, a terminal rotatably arranged at one end of the sleeve, and a rotating tube rotatably connected to the sleeve;

[0025] The rotating tube is fixedly connected to a circular ring through a plurality of supporting rods, a plurality of protrusions are equidistantly arranged on the inner wall of the circular ring along the circumference, and an inclined surface abutting against the pulley is arranged on the protrusion;

[0026] A driving column is fixed on the outer wall of the end, and the driving column extends into a deep groove opened on the outer wall of the rotating tube. The deep groove includes a vertical section and an inclined section. A plurality of limiting protrusions are also provided on the outer wall of the sleeve, and a plurality of limiting sliding grooves adapted to the limiting protrusions are provided on the inner wall of the end.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention is novel in design. When in use, the motor rotor is fixed on the disc by retracting the limiting mechanism, and then the Maltese cross movement mechanism moves, driving the reciprocating lifting mechanism and the movable supporting mechanism to move alternately; when the reciprocating lifting mechanism moves, the pushing and feeding mechanism will move in the first part of its movement, and the pushing and feeding mechanism will perform a pushing action on the arranged magnetic steel, so that the reciprocating lifting mechanism will finally press the pushed magnetic steel down and embed it into the motor rotor; when the movable supporting mechanism moves, it will drive the disc to drive the motor rotor to rotate, thereby realizing the automatic transposition function of the motor rotor, making the embedding assembly of the magnetic steel continuous and improving the assembly efficiency. In summary, through the mutual cooperation between various mechanisms and components, and mechanically interlocking the embedding of the magnetic steel with the transposition of the motor rotor, automatic assembly is realized through the mechanical structure, which greatly reduces the failure rate of the equipment and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A structural schematic diagram of an embodiment of an embedded assembly device for permanent magnet synchronous motor rotor magnetic steel;

[0029] Figure 2 A schematic structural diagram of another angle of an embodiment of an embedded assembly device for permanent magnet synchronous motor rotor magnetic steel;

[0030] Figure 3 A structural schematic diagram of an embodiment of an embedded assembly device for permanent magnet synchronous motor rotor magnetic steel from another angle;

[0031] Figure 4 for Figure 2 A magnified view of the structure at center A;

[0032] Figure 5 for Figure 3 A magnified view of the structure at B in the middle;

[0033] Figure 6 It is a structural exploded diagram of a retracting and limiting mechanism in one embodiment of an embedded assembly device for a permanent magnet synchronous motor rotor magnetic steel;

[0034] Figure 7 A schematic diagram of the connection relationship between the Maltese cross movement mechanism and the reciprocating lifting mechanism in one embodiment of an embedded assembly device for permanent magnet synchronous motor rotor magnetic steel;

[0035] Figure 8 This is a structural exploded diagram of a pushing and feeding mechanism in one embodiment of an embedded assembly device for permanent magnet synchronous motor rotor magnetic steel;

[0036] In the figure: 1, base; 2, first plate; 3, second plate; 4, box body; 5, discharging member; 6, screw rod; 7, guide rod; 8, transverse plate; 9, column spring; 10, telescopic rod; 11, lifting plate; 12, cross bar; 13, push-pull plate; 1301, strip member; 14, connecting rod; 15, support rod; 16, cam; 1601, column; 17, ring; 1701, raised part; 18, motor; 19, long strip plate; 20, ratchet; 21, bevel gear set; 22. First transmission shaft; 23. First transmission belt; 24. First driven wheel; 25. Second driven wheel; 26. Driving wheel; 27. Second transmission belt; 28. Third transmission belt; 29. ​​Second transmission shaft; 30. Fourth transmission belt; 31. Rotating shaft; 32. Bushing; 33. Sleeve; 3301. End; 3302. Driving column; 34. Cylinder; 3401. Assembly plate; 35. Disc; 36. Rotating tube; 3601. Deep groove; 37. Fixed block; 38. Sliding block. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0039] See also Figure 1-8 In an embodiment of the present invention, an embedded assembly device for a permanent magnet synchronous motor rotor magnetic steel includes a base 1, a first plate 2 fixedly mounted on the base 1, and a second plate 3 fixed to one side of the first plate 2, and further includes:

[0040] The disc 35 is movably mounted on the base 1 and connected to a movable supporting mechanism mounted on the base 1. The disc 35 is also provided with a folding and limiting mechanism, which is used to fix the motor rotor;

[0041] A push-feeding mechanism is installed on the first plate 2, and the push-feeding mechanism cooperates with the reciprocating lifting mechanism installed on the second plate 3. The push-feeding mechanism is triggered in the first stroke of the reciprocating lifting mechanism, and pushes the arranged magnetic steels, so that the reciprocating lifting mechanism presses the pushed magnetic steels into the motor rotor;

[0042] The Maltese cross movement mechanism is installed on the second plate 3, and is connected to the reciprocating lifting mechanism and the movable supporting mechanism respectively. The movable supporting mechanism moves after the Maltese cross movement mechanism drives the reciprocating lifting mechanism to complete the downward pressing and embedding action, and prompts the disc 35 to rotate, so that the motor rotor performs the transposition action.

[0043] When assembling the magnetic steel, the motor rotor is placed on the disc 35, and the motor rotor on the disc 35 is fixed by closing the limit mechanism. Then, the Maltese cross movement mechanism moves, driving the reciprocating lifting mechanism and the movable supporting mechanism to move alternately.

[0044] When the reciprocating lifting mechanism moves, the pushing and feeding mechanism will move in the first stroke of the movement, and the pushing and feeding mechanism will push the arranged magnetic steels, so that the reciprocating lifting mechanism will finally push the pushed magnetic steels down and embed them into the motor rotor;

[0045] When the movable support mechanism moves, the disc 35 is driven to drive the motor rotor to rotate, thereby realizing the automatic transposition function of the motor rotor, making the embedded assembly of the magnetic steel continuous, improving the assembly efficiency, and significantly increasing the output within a specific time;

[0046] In summary, through the mutual cooperation between various mechanisms and components, and the mechanical interlocking of the embedding of the magnetic steel and the displacement of the motor rotor, the automatic embedded assembly function of the motor rotor magnetic steel is realized.

[0047] Please refer again Figure 8 The pushing and feeding mechanism comprises a box body 4 fixed to the top of the first plate 2, and a discharging member 5 fixed to the end of the box body 4 away from the first plate 2, and a through hole for the magnetic steel to enter is provided at the connection between the discharging member 5 and the box body 4, so as to form a transmission path for the magnetic steel;

[0048] A screw rod 6 is rotatably mounted on the first plate member 2 , and a transverse plate 8 threadedly connected to the screw rod 6 is provided on the screw rod 6 . The transverse plate 8 is slidably connected to a guide rod 7 fixed on the first plate member 2 .

[0049] Specifically, two through holes are provided on the side of the transverse plate 8 , and the two through holes are respectively used for the screw rod 6 and the guide rod 7 to pass through, and a thread engaging with the screw rod 6 is provided on the inner wall of the through hole through which the screw rod 6 passes.

[0050] The transverse plate 8 is provided with a deep hole, in which a telescopic rod 10 is slidably arranged. One end of the telescopic rod 10 is connected to a cylindrical spring 9 arranged in the deep hole, and the other end passes through the box body 4. The box body 4 is provided with a strip-shaped through groove for the telescopic rod 10 to move.

[0051] In actual use, the telescopic rod 10 is pressed down, and the cylindrical spring 9 is gradually compressed until the telescopic rod 10 shrinks below the inner wall of the box body 4. Then, the staff can arrange and place the magnetic steel to be assembled in the box body 4 (from the box body 4 to one end of the second plate 3). Then, the telescopic rod 10 is released, and the cylindrical spring 9 rebounds, so that the telescopic rod 10 slides back to the outside of the deep hole and abuts against the magnetic steel in the box body 4.

[0052] Subsequently, in the first stroke of the movement of the reciprocating lifting mechanism, the lead screw 6 is prompted to rotate in the forward direction, so that the guide rod 7 guides the transverse plate 8, and the transverse plate 8 is threadedly engaged with the lead screw 6 and moves in the direction away from the first plate 2. Then, the telescopic rod 10 pushes a magnet into the discharge piece 5 to realize the feeding function. As the reciprocating lifting mechanism continues to move, the pushed magnet is pressed down and embedded in the motor rotor located on the disc 35.

[0053] Please refer again Figure 4 and Figure 7 The Maltese cross movement mechanism includes a motor 18 mounted on the second plate 3, a driving wheel 26 fixed on the output shaft of the motor 18, and a first driven wheel 24 and a second driven wheel 25 rotatably mounted on the second plate 3;

[0054] The rotating shaft of the first driven wheel 24 is connected to the reciprocating lifting mechanism, and the rotating shaft of the second driven wheel 25 is connected to the movable supporting mechanism.

[0055] Please refer again Figure 5 and Figure 7 The reciprocating lifting mechanism includes two cross bars 12 fixed to the bottom of the second plate 3, a push-pull plate 13 slidably arranged on the two cross bars 12, and a cam 16 rotatably mounted on the second plate 3;

[0056] The rotating shafts of the cam 16 and the first driven wheel 24 are connected by a second transmission belt 27, and the push-pull plate 13 is connected to the lifting plate 11 slidably arranged in the discharge member 5 by two connecting rods 14, and the two ends of the connecting rod 14 are respectively hinged to the lifting plate 11 and the push-pull plate 13;

[0057] Two strips 1301 are fixed to the push-pull plate 13 , a gap is reserved between the two strips 1301 , and a column 1601 extending into the gap and slidably connected to the two strips 1301 is fixed to the cam 16 .

[0058] It should be emphasized that the transmission ratio of the second transmission belt 27 is 4:1. The driving wheel 26 will drive the first driven wheel 24 to rotate 90° during one rotation. Therefore, the first driven wheel 24 will drive the cam 16 to rotate one circle through the second transmission belt 27. Correspondingly, the cylinder 1601 completes a circular motion and slides with the two strips 1301, prompting the push-pull plate 13 to complete a reciprocating motion on the two cross bars 12, and the push-pull plate 13 drives the lifting plate 11 to first descend and then rise in the discharge piece 5 through the connecting rod 14, completing the embedded assembly of the magnetic steel.

[0059] A ratchet 20 is also rotatably mounted at the bottom of the second plate 3, and a long strip 19 is fixed to one side of the push-pull plate 13. The bottom of the long strip 19 is provided with a plurality of inclined grooves equidistantly along its length direction, and a pawl that cooperates with the ratchet 20 is hinged in each of the inclined grooves, and the rotating shaft of the ratchet 20 is connected to the first transmission shaft 22 rotatably mounted on the second plate 3 through a bevel gear set 21, and the first transmission shaft 22 is connected to the screw rod 6 through a first transmission belt 23.

[0060] Furthermore, the bevel gear set 21 includes a first bevel gear coaxially fixedly installed with the ratchet 20 and a second bevel gear fixedly installed at an end of the first transmission shaft 22 away from the second plate 3, and the second bevel gear is meshed with the first bevel gear.

[0061] When the push-pull plate 13 slides on the two cross bars 12 toward and away from the second plate 3 (that is, the lifting plate 11 descends in the discharge member 5), in the first section of its sliding stroke, the pawl at the bottom of the long strip plate 19 cannot be turned over due to the limiting effect of the inclined groove, and then the ratchet 20 will rotate. Therefore, the rotating shaft of the ratchet 20 will drive the first transmission shaft 22 to rotate through the bevel gear set 21, and the first transmission shaft 22 will drive the screw 6 to rotate in the forward direction through the first transmission belt 23, thereby realizing the automatic feeding function;

[0062] On the contrary, when the push-pull plate 13 slides on the two cross bars 12 toward the second plate 3 (that is, the lifting plate 11 rises in the discharge member 5), the pawl will flip over in the inclined groove when passing through the ratchet 20, and the ratchet 20 will not rotate, preventing the screw rod 6 from reversing, thereby ensuring the smoothness of the next round of feeding.

[0063] It should be additionally explained that, when the magnetic steel in the box body 4 is exhausted, the staff needs to rotate the screw rod 6 in the reverse direction to reset the telescopic rod 10 and replenish the magnetic steel in the box body 4 .

[0064] Please refer again Figure 1 and Figure 6 The movable support mechanism includes a rotating shaft 31 rotatably mounted on the base 1 and a sleeve 32 slidably fitted with the rotating shaft 31, the disc 35 is fixed to an end of the sleeve 32 away from the base 1, the rotating shaft 31 is connected to a second transmission shaft 29 rotatably mounted on the base 1 through a fourth transmission belt 30, and the second transmission shaft 29 is connected to the rotating shaft of the second driven wheel 25 through a third transmission belt 28;

[0065] The outer circumference of the rotating shaft 31 is provided with a plurality of strip-shaped protrusions at equal intervals along the circumference, and the inner wall of the sleeve 32 is provided with a plurality of strip-shaped grooves at equal intervals along the circumference, and the strip-shaped grooves are adapted to the strip-shaped protrusions, and both are parallel to the central axis of the rotating shaft 31;

[0066] A plurality of cylinders 34 are also mounted on the base 1 , and a mounting plate 3401 is fixed to the movable ends of the plurality of cylinders 34 , and the mounting plate 3401 is rotatably connected to the sleeve 32 .

[0067] When the second driven wheel 25 rotates, its rotating shaft drives the second transmission shaft 29 to rotate through the third transmission belt 28, and the second transmission shaft 29 drives the rotating shaft 31 to rotate through the fourth transmission belt 30. Then, the rotating shaft 31 drives the sleeve 32 and the disc 35 to rotate through the strip-shaped protrusions and the strip-shaped grooves, thereby realizing the automatic transposition function of the motor rotor on the disc 35.

[0068] In actual operation, when fixing the motor rotor on the disc 35, the staff must first control the cylinder 34 to drive the assembly plate 3401 to drive the sleeve 32 to move downward, so that the disc 35 can be lowered in height, ensuring that a certain distance is reserved between the disc 35 and the lower end of the discharge piece 5, so as to facilitate the fixation of the motor rotor. After the motor rotor is fixed, the cylinder 34 drives the disc 35 to rise, and aligns the embedding port on the motor rotor with the lower end of the discharge piece 5.

[0069] Please refer again Figure 3 and Figure 6The folding and limiting mechanism includes a sliding structure installed on the disc 35 and a threaded driving assembly installed on the sleeve 32 and cooperating with the sliding structure. The sliding structure includes a plurality of fixed blocks 37 fixed at equal intervals along the circumference at the bottom of the disc 35 and a slider 38 slidably embedded in the fixed block 37. A locking column passing through the disc 35 is fixed on the slider 38, and a pulley cooperating with the threaded driving assembly is also rotatably installed.

[0070] The thread drive assembly includes a sleeve 33 sleeved on the sleeve 32 and threadedly connected to the sleeve 32, an end 3301 rotatably arranged at one end of the sleeve 33, and a rotating tube 36 rotatably connected to the sleeve 32;

[0071] The rotating tube 36 is fixedly connected to a ring 17 through a plurality of supporting rods 15, and a plurality of protrusions 1701 are equidistantly arranged on the inner wall of the ring 17 along the circumference, and an inclined surface abutting against the pulley is arranged on the protrusion 1701;

[0072] A driving column 3302 is fixed on the outer wall of the end head 3301, and the driving column 3302 extends into a deep groove 3601 provided on the outer wall of the rotating tube 36. The deep groove 3601 includes a vertical section and an inclined section. A plurality of limiting protrusions are also provided on the outer wall of the sleeve 32, and a plurality of limiting sliding grooves adapted to the limiting protrusions are provided on the inner wall of the end head 3301.

[0073] When fixing the motor rotor on the disc 35, the sleeve 33 is rotated so that the sleeve 33 moves upward on the sleeve 32. Then, under the action of the limiting protrusion and the limiting slide groove, the end 3301 will drive the driving column 3302 to rise vertically, and when the driving column 3302 slides in the inclined section of the deep groove 3601, the rotating tube 36 is prompted to rotate. Then, the ring 17 rotates, and the protrusion 1701 squeezes the pulley, so that the multiple sliders 38 are retracted along the radial direction of the disc 35, so that the motor rotor can be fixed with a good fixing effect, ensuring that the motor rotor will not be offset due to insufficient fixation during the embedding of the magnetic steel.

[0074] An embedded assembly method for a permanent magnet synchronous motor rotor magnetic steel, using the above-mentioned assembly equipment, comprises the following steps:

[0075] Step 1: Place the motor rotor on the disc 35, fix the motor rotor by the retracting and limiting mechanism, and at the same time, add the magnetic steel to be assembled to the pushing and feeding mechanism, and ensure that the magnetic steel is in an arranged and placed state in the pushing and feeding mechanism;

[0076] Step 2: The Maltese cross movement mechanism works to drive the reciprocating lifting mechanism to move. In the front stroke of the reciprocating lifting mechanism, the pushing feeding mechanism is prompted to push the magnetic steel, and the reciprocating lifting mechanism performs a downward pressing and embedding action on the pushed magnetic steel into the motor rotor;

[0077] Step 3: The reciprocating lifting mechanism stops working. After completing one round of assembly, the Maltese cross movement mechanism drives the movable support mechanism to move, prompting the disc 35 to drive the motor rotor thereon to rotate, and automatically transposes to facilitate the assembly of the next wheel;

[0078] Step 4, after the assembly is completed, control the retracting limit mechanism to release the fixed state of the motor rotor, remove the motor rotor on which the magnetic steel assembly has been completed on the disk 35, and check whether the magnetic steel in the push feeding mechanism is sufficient.

[0079] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0080] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An embedded assembly device for a permanent magnet synchronous motor rotor magnetic steel, comprising a base (1), a first plate (2) fixedly mounted on the base (1), and a second plate (3) fixed to one side of the first plate (2), characterized in that: Also includes: A disc (35) is movably mounted on the base (1) and connected to a movable support mechanism mounted on the base (1); a folding and limiting mechanism is also provided on the disc (35), and the folding and limiting mechanism is used to fix the motor rotor; A push-feeding mechanism is mounted on the first plate (2), and cooperates with a reciprocating lifting mechanism mounted on the second plate (3). The push-feeding mechanism is triggered in the first stroke of the reciprocating lifting mechanism, and performs a pushing action on the arranged magnetic steels, so that the reciprocating lifting mechanism performs a pressing and embedding action on the pushed magnetic steels into the motor rotor; The Maltese cross movement mechanism is mounted on the second plate (3) and is connected to the reciprocating lifting mechanism and the movable support mechanism respectively. The movable support mechanism moves after the Maltese cross movement mechanism drives the reciprocating lifting mechanism to complete the downward pressing and embedding action, and prompts the disc (35) to rotate so that the motor rotor performs the transposition action. The pushing and feeding mechanism comprises a box body (4) fixed to the top of the first plate (2), and a discharge member (5) fixed to the end of the box body (4) away from the first plate (2). A through hole for the magnetic steel to enter is provided at the connection between the discharge member (5) and the box body (4) to form a transmission path for the magnetic steel. The first plate (2) is also rotatably mounted with a screw rod (6), the screw rod (6) being provided with a transverse plate (8) threadedly connected thereto, the transverse plate (8) being slidably connected to a guide rod (7) fixed to the first plate (2), the transverse plate (8) being provided with a deep hole, a telescopic rod (10) being slidably arranged in the deep hole, one end of the telescopic rod (10) being connected to a columnar spring (9) arranged in the deep hole, and the other end passing through the box body (4), and the box body (4) being provided with a strip-shaped through groove for allowing the telescopic rod (10) to move, the Maltese cross movement mechanism comprising a motor (18) mounted on the second plate (3), a driving wheel (26) fixed on an output shaft of the motor (18), and a first driven wheel (24) and a second driven wheel (25) rotatably mounted on the second plate (3); The rotating shaft of the first driven wheel (24) is connected to the reciprocating lifting mechanism, the rotating shaft of the second driven wheel (25) is connected to the movable supporting mechanism, and the reciprocating lifting mechanism comprises two cross bars (12) fixed to the bottom of the second plate (3), a push-pull plate (13) slidably arranged on the two cross bars (12), and a cam (16) rotatably mounted on the second plate (3); The rotating shafts of the cam (16) and the first driven wheel (24) are connected via a second transmission belt (27); the push-pull plate (13) is connected to a lifting plate (11) slidably arranged in the discharge member (5) via two connecting rods (14); and the two ends of the connecting rod (14) are respectively hinged to the lifting plate (11) and the push-pull plate (13); Two strips (1301) are also fixed on the push-pull plate (13), a gap is reserved between the two strips (1301), and a column (1601) is fixed on the cam (16) and extends into the gap and is slidably connected to the two strips (1301).

2. The embedded assembly device for permanent magnet synchronous motor rotor magnetic steel according to claim 1, characterized in that: A ratchet (20) is also rotatably mounted on the bottom of the second plate (3); a long strip (19) is fixed to one side of the push-pull plate (13); a plurality of inclined grooves are equidistantly arranged on the bottom of the long strip (19) along its length direction; a ratchet pawl cooperating with the ratchet (20) is hingedly connected in each of the inclined grooves; and a rotating shaft of the ratchet (20) is connected to a first transmission shaft (22) rotatably mounted on the second plate (3) via a bevel gear set (21); and the first transmission shaft (22) is connected to the screw rod (6) via a first transmission belt (23).

3. The embedded assembly device for permanent magnet synchronous motor rotor magnetic steel according to claim 2, characterized in that: The movable support mechanism comprises a rotating shaft (31) rotatably mounted on the base (1) and a sleeve (32) slidably fitted with the rotating shaft (31); the disc (35) is fixed to an end of the sleeve (32) away from the base (1); the rotating shaft (31) is connected to a second transmission shaft (29) rotatably mounted on the base (1) via a fourth transmission belt (30); the second transmission shaft (29) is connected to a rotating shaft of the second driven wheel (25) via a third transmission belt (28); The outer circumference of the rotating shaft (31) is provided with a plurality of strip-shaped protrusions at equal intervals along the circumference, and the inner wall of the sleeve (32) is provided with a plurality of strip-shaped grooves at equal intervals along the circumference, the strip-shaped grooves are adapted to the strip-shaped protrusions, and both are parallel to the central axis of the rotating shaft (31); A plurality of cylinders (34) are also mounted on the base (1), and an assembly plate (3401) is fixed to the movable ends of the plurality of cylinders (34), and the assembly plate (3401) is rotatably connected to the sleeve (32).

4. The embedded assembly device for permanent magnet synchronous motor rotor magnetic steel according to claim 3, characterized in that: The folding and limiting mechanism comprises a sliding structure mounted on the disc (35) and a threaded drive assembly mounted on the sleeve (32) and cooperating with the sliding structure. The sliding structure comprises a plurality of fixed blocks (37) fixed at equal intervals along the circumference at the bottom of the disc (35) and a sliding block (38) slidably engaged in the fixed blocks (37). A locking column passing through the disc (35) is fixed on the sliding block (38), and a pulley cooperating with the threaded drive assembly is rotatably mounted on the sliding block (38).

5. The embedded assembly device for permanent magnet synchronous motor rotor magnetic steel according to claim 4, characterized in that: The thread drive assembly comprises a sleeve (33) sleeved on the sleeve (32) and threadedly connected to the sleeve (32), an end head (3301) rotatably arranged at one end of the sleeve (33), and a rotating tube (36) rotatably connected to the sleeve (32); The rotating tube (36) is fixedly connected to a circular ring (17) via a plurality of supporting rods (15); a plurality of protrusions (1701) are equidistantly arranged on the inner wall of the circular ring (17) along the circumference; and an inclined surface abutting against the pulley is arranged on the protrusions (1701); A driving column (3302) is fixed on the outer wall of the end head (3301), and the driving column (3302) extends into a deep groove (3601) provided on the outer wall of the rotating tube (36), and the deep groove (3601) includes a vertical section and an inclined section. A plurality of limiting protrusions are also provided on the outer wall of the sleeve (32), and a plurality of limiting sliding grooves adapted to the limiting protrusions are provided on the inner wall of the end head (3301).

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