Specific embodiment
Hereinafter, embodiment is illustrated using accompanying drawing.The stator core 1 of Fig. 1 and rotor core 2 constitute three-phase synchronousMotor.The three-phase synchronous motor is internal rotor (inner rotor) type, and rotor core 2 is incorporated in the inside of stator core 1.The rotor core 2 is in the axial direction laminated multiple rotors punching plate 3 (with reference to Fig. 3), on rotor core 2, manyMounting permanent magnet and rotary shaft after the individual rotor punching stacking of plate 3.
Stator core 1 as shown in figure 1, multiple stators punching plate 4 is laminated in the axial direction, with yoke 5, manyIndividual tooth 6, multiple slots 7 and multiple connecting piece 8.Yoke 5 is cylindrical, and multiple teeth 6 are respectively from the inward-facing pleurapophysis of inner circumferential of yoke 5Go out.These multiple teeth 6 are equipped with respectively stator coil, and multiple slots 7 are configured in respectively along the circumferential direction adjacent tooth 6Between.Outer peripheral face of the multiple connecting piece 8 respectively from yoke 5 is projected laterally, in a circumferential direction equidistantly arranging.These are multipleConnecting piece 8 has respectively connecting hole 9, by being respectively pressed into connecting piece into multiple connecting holes 9, so as to multiple stators are punched plate 4Between be concatenated.
The pressure apparatus 10 of Fig. 2 is the device that rotor punching plate 3 and stator punching plate 4 are punched from banding steel plate 11, is possessedUncoiling feeder 12, leveling feeder 13 and stamping mold 14.Banding steel plate 11 in the package of uncoiling feeder 12.The banding steel plate11 are made up of the thin plate of below thickness of slab 0.35mm, are arranged this 2 row along P row and Q on short side direction from banding steel plate 11 and are punched respectivelyRotor is punched plate 3 and stator punching plate 4 (with reference to Fig. 3).Leveling feeder 13 is from uncoiling feeder 12 times by banding steel plate 11Around and to level conveying X-direction feed device, possess the function that the winding natural inclination to banding steel plate 11 is corrected.The bandShape steel plate 11 is respectively equivalent to product equivalent to band-like plate, rotor punching plate 3 and stator punching plate 4.
Stamping mold 14 from leveling feeder 13 as shown in Fig. 2 supplied banding steel plate 11.The stamping mold 14 equivalent toOrder feeding processing machine, possesses upper mould 15 and lower mould 16.The stamping mold 14 is by by the rotary motion connecting rod of compression motorConstitute etc. linear reciprocating mechanical press is transformed to.Upper mould 15 corresponding to compression motor by rotation processReciprocating motion is repeated between certain top dead-centre and certain bottom dead centre under the inactive state of lower mould 16.The stamping mold 14Possesses bottom dead centre switch.The bottom dead centre switch is to reach bottom dead centre from top dead-centre by upper mould 15 and become electric opening, left towards top dead-centre in bottom dead centre by upper mould 15 and become electric closed mode.
Lower mould 16 is installed with punch die D1, D2, D3, D4, D5 and D6 (all as shown in Fig. 2 possess template 17 in template 17It is not shown).These punch dies D1～D6 is abreast from anti-conveying direction X towards conveying side with the conveying direction X of banding steel plate 11The punch die of a row is arranged as with the order of punch die D1 → D2 → D3 → D4 → D5 → D6 to X, mutually with equidistant P arrangements.
Upper mould 15 is installed with drift P1, P2, P3, P4, P5 as shown in Fig. 2 possess drift fishplate bar 18 on drift fishplate bar 18With P6 (all not shown).These drifts P1～P6 is abreast from anti-conveying direction X directions with the conveying direction X of banding steel plate 11Conveying direction X is arranged as the drift of a row with the order of drift P1 → P2 → P3 → P4 → P5 → P6.In the top dead-centre of upper mould 15,Drift P1 is opposed with punch die D1 from top, and drift P2 is opposed with punch die D2 from top, and drift P3 is opposed with punch die D3 from top, punchingP4 is opposed with punch die D4 from top for head, and drift P5 is opposed with punch die D5 from top, and drift P6 is opposed with punch die D6 from top.
Leveling feeder 13 is the device for intermittently conveying banding steel plate 11 with certain speed to conveying direction X.The bandThe conveying spacing of shape steel plate 11 is set to arrangement pitches identical value P with punch die D1～D6, and banding steel plate 11 corresponds to quiltTo convey spacing P to conveying direction X conveyings by " between drift P1 and punch die D1 " → " between drift P2 and punch die D2 " → " driftsBetween P3 and punch die D3 " → " between drift P4 and punch die D4 " → " between drift P5 and punch die D5 " → " between drift P6 and punch die D6 " is successivelySupply.These punch dies D1～D6 and drift P1～P6 as shown in figure 3, to banding steel plate 11 relative to conveying direction X in positionStagger and implement shearing, leveling feeder 13 is implementing the time point of shearing to banding steel plate 11 by banding steel plate 11Stop conveying.
Punch die D1 and drift P1 constitute machine table S1, as shown in figure 3, by machine table S1 by upper mould 15 from top dead-centreTo bottom dead centre moving operation, so as on the P of banding steel plate 11 row and Q row, respectively shearing goes out the pilot hole 19 of positioning.Punch die D2 and drift P2 constitute machine table S2, by machine table S2 by upper mould 15 from top dead-centre to bottom dead centre moving operation,So as on the P of banding steel plate 11 row and Q row, respectively shearing portals 20, hole 21 and hole 22.This some holes 20～22 is rotorThe hole of punching plate 3, is set to mutually different shape.
Punch die D3 and drift P3 constitute machine table S3, as shown in figure 3, by machine table S3 by upper mould 15 from top dead-centreTo bottom dead centre moving operation, so as on the P of banding steel plate 11 row and Q row, respectively shearing portals 23 and hole 24.Use in hole 23Rotary shaft is inserted, is the hole of rotor punching plate 3.Hole 24 is used for forming slot 7, is the hole that stator is punched plate 4.
Punch die D4 and drift P4 constitute machine table S4, as shown in figure 3, by machine table S4 by upper mould 15 from top dead-centreTo bottom dead centre moving operation, so as to be punched out rotor punching plate 3 respectively from the P of banding steel plate 11 row and Q row.The rotor punching plateFall in 3 to punch die D4, corresponding to be repeated in punch die D4 rotor be punched plate 3 punching, rotor be punched plate 3 by from it is lower toShangdi stacks gradually.
Punch die D5 and drift P5 constitute machine table S5, as shown in figure 3, by machine table S5 by upper mould 15 from top dead-centreTo bottom dead centre moving operation, so as to be punched out stator punching plate 4 respectively from the P of banding steel plate 11 row and Q row.The stator punching plateFall in 4 to punch die D5, corresponding to be repeated in punch die D5 stator be punched plate 4 punching, stator be punched plate 4 by from it is lower toShangdi stacks gradually.
Punch die D6 and drift P6 constitute machine table S6, as shown in figure 3, by machine table S6 by upper mould 15 from top dead-centreTo bottom dead centre moving operation, so as to from the surplus material of the P of banding steel plate 11 row and Q row difference scissor cutting strips steel plate 11.That is, it is rightYing Yu successively supplies banding steel plate 11 to " between drift P1 and punch die D1 "～" between drift P6 and punch die D6 ", from banding steel plate 11Rotor is punched into plate 3 and stator punching plate 4 is punched 2 row on short side direction.Hole 25 is by the way that stator is punched into plate 4 from band-like steelPlate 11 is punched and is formed, on banding steel plate 11, in the position between 1 hole 25 of two holes 25 of P row and Q row,The residual side 26 of punching of triangle is remained, in the position between two holes 25 of P row and between two holes 25 of Q row,Remain respectively than be punched the residual punching in 26 narrow widths it is residual while 27.The residual side 26 of the punching is equivalent to surplus material.
Multiple mechanical ascending and descending devices are installed in the template 17 of lower mould 16.These multiple mechanical ascending and descending devices are able toMove between the active position projected upwards in the inoperative position being accommodated in template 17 and from the upper surface of template 17, by spring fromInoperative position exerts a force towards active position.
Corresponding to the midway, pushing force declined from top dead-centre to bottom dead centre in upper mould 15 by from drift P1～P6 via bandingSteel plate 11 is transmitted, and multiple mechanical ascending and descending devices are moved respectively from active position to inoperative position.Corresponding in upper mould 15 from lower deadPoint to top dead-centre rise midway, from drift P1～P6 pushing force disappear, multiple mechanical ascending and descending devices under spring force fromInoperative position to active position is moved.These multiple mechanical ascending and descending devices make banding steel plate 11 from template 17 in active position respectivelyUpper surface float, these multiple mechanical ascending and descending devices are configured in the side contrary with conveying direction X in machine table S1～S6.That is, the nubbin in addition to the leading section of conveying direction X sides in banding steel plate 11 is being risen by mechanical ascending and descending deviceBy to conveying direction X conveyings under float state.
In the template 17 of lower mould 16, shown in such as Fig. 4 (a) and Fig. 4 (b), fixed front Pneumatic lifting/lowering device 28 and rear pneumaticLifter 29.These front Pneumatic lifting/lowering devices 28 and rear Pneumatic lifting/lowering device 29 formed respectively the upper table relative to template 17 face down it is recessedSunken concavity, banding steel plate 11 is not conveyed with hindering by front Pneumatic lifting/lowering device 28 and rear Pneumatic lifting/lowering device 29.It is pneumatic before theseLifter 28 and rear Pneumatic lifting/lowering device 29 have respectively multiple ejiction openings 30.Multiple ejiction openings 30 of front Pneumatic lifting/lowering device 28 and afterMultiple ejiction openings 30 of Pneumatic lifting/lowering device 29 are arranged as 1 row along the orthogonal orthogonal directions of the conveying direction X with banding steel plate 11.
In the template 17 of lower mould 16, as shown in figure 5, be formed with two air paths 31, front Pneumatic lifting/lowering device 28 and afterPneumatic lifting/lowering device 29 is connected in air path 31.This two air paths 31 are connected to sky via common air hoseOn the ejiction opening of air pump.The air pump with pump motor as driving source, under the operating condition of pump motor, from air pump via airMultiple ejiction openings 30 of flexible pipe and air path 31 multiple ejiction openings 30 of Pneumatic lifting/lowering device 28 and rear Pneumatic lifting/lowering device 29 forwardSupply air.That is, front multiple ejiction openings 30 of Pneumatic lifting/lowering device 28 and multiple ejiction openings 30 of rear Pneumatic lifting/lowering device 29 exist respectivelyAir is sprayed under the operating condition of pump motor, front Pneumatic lifting/lowering device 28 and rear Pneumatic lifting/lowering device 29 are equivalent to spraying and blowing organ.
Front Pneumatic lifting/lowering device 28 and rear Pneumatic lifting/lowering device 29 respectively as shown in Fig. 4 (a) and Fig. 4 (b), relative to banding steel plate11 short side direction and be configured in central portion.P row and Q of the multiple ejiction openings 30 of the past Pneumatic lifting/lowering device 28 to banding steel plate 11Row blows air, from multiple ejiction openings 30 of rear Pneumatic lifting/lowering device 29 also blows air.These front Pneumatic lifting/lowering devices 28 it is multipleMultiple ejiction openings 30 of ejiction opening 30 and rear Pneumatic lifting/lowering device 29 are formed respectively from bottom to top towards the conveying side of banding steel plate 11To the oblique inclined path shapes of X, air is obliquely blown to banding steel plate 11 from bottom to top towards conveying direction X.
As shown in figure 5, by the past Pneumatic lifting/lowering device 28 and the blows air of rear Pneumatic lifting/lowering device 29, banding steel plate 11 is relativeFloat in the upper surface of template 17.The ejection pressure of air the past Pneumatic lifting/lowering device 28 and rear Pneumatic lifting/lowering device 29 to banding steel plate 11It is set to, makes the floatation volume ratio of banding steel plate 11 brought by air big by the floatation volume that mechanical ascending and descending device brings.
The label 32 of Fig. 3 is the injection position of the air from front Pneumatic lifting/lowering device 28, and front Pneumatic lifting/lowering device 28 is in processingTo the residual blows air of side 26 of punching of the triangle of banding steel plate 11 on platform S5.The label 33 of Fig. 3 is from rear Pneumatic elevationThe injection position of the air of device 29, rear Pneumatic lifting/lowering device 29 is in machine table S4 to as the part injection sky for being punched residual side 26Gas.
Pump motor is that following dead-center switch switches to closed mode this case as electric triggering thing from openingPart and start running.Front Pneumatic lifting/lowering device 28 and rear Pneumatic lifting/lowering device 29 are by being later than in time the pump motor that starts runningTime and start the ejection of air, the time after being just released from so as to the engagement between drift P1～P6 and punch die D1～D6Point, to the blows air of banding steel plate 11.
That is, pump motor corresponds to mould 15 and starts mobile towards top dead-centre from bottom dead centre and start running.In driftAfter engagement between P1～P6 and punch die D1～D6 is just released from, front Pneumatic lifting/lowering device 28 and rear Pneumatic lifting/lowering device 29 start to bandThe blows air of shape steel plate 11.Leveling feeder 13 is in the past Pneumatic lifting/lowering device 28 and rear Pneumatic lifting/lowering device 29 just to banding steel plate11 start blows airs after, from conveying halted state start conveying band steel plate 11, with the past Pneumatic lifting/lowering device 28 and rear gasWhile dynamic lifter 29 is to the beginning blows air of banding steel plate 11, multiple mechanical ascending and descending devices are moved respectively to active position.
Pump motor on the basis of starting running, by shutting down through certain hour, front Pneumatic lifting/lowering device 28 and afterPneumatic lifting/lowering device 29 is later than in time the time of the pump motor that shuts down and stops the ejection of air.Predetermine the pump motorThe duration of runs so that stopping after conveying band steel plate 11 is just stopped from front Pneumatic lifting/lowering device 28 and rear Pneumatic elevationThe ejection of the air of device 29.Banding steel plate 11 has been blown floating for air in the past Pneumatic lifting/lowering device 28 and rear Pneumatic lifting/lowering device 29Conveyed under state.
According to above-mentioned embodiment, following effect is played.
Due to the past Pneumatic lifting/lowering device 28 and rear Pneumatic lifting/lowering device 29 to banding steel plate 11 from bottom to top towards conveying sideTo X obliquely blows airs, so the state that banding steel plate 11 is floated with the upper surface from template 17 is by defeated to conveying direction XSend.Although the banding steel plate 11 in machine table S5 triangle punching it is residual at 26 and residual narrow punching 27 because of intensity notFoot and hang down, but be punched it is residual while 26 and be punched it is residual while 27 will not block hang in punch die D5 stator punching plate 4 on.Also, due toBanding steel plate 11 is pushed by the pressure from front Pneumatic lifting/lowering device 28 and the air of rear Pneumatic lifting/lowering device 29 to conveying direction X, instituteAlways at full speed smoothly conveyed to conveying direction X with banding steel plate 11.
Because the past Pneumatic lifting/lowering device 28 is empty to the central portion injection of the short side direction of banding steel plate 11 in machine table S5Gas, from rear Pneumatic lifting/lowering device 29 to the central portion blows air of the short side direction of banding steel plate 11 in machine table S4, so emptyBy to the side-jetting that hangs down in banding steel plate 11, correspondingly, side of hanging down directly is lifted gas.Thus, it is possible to lessThe air of pressure floats the side of hanging down in banding steel plate 11, so the card that can efficiently prevent banding steel plate 11 is hung.
Due in machine table S5 the past Pneumatic lifting/lowering device 28 to the residual blows air of side 26 is punched, so to banding steel plate 11In the direct blows air in the part hung down, correspondingly, the part hung down directly is lifted.Thus, it is possible to lessThe air of pressure float the part hung down in banding steel plate 11, so also can efficiently prevent band-like steel from this pointThe card of plate 11 is hung.
Corresponding to the spray of upper mould 15 the past Pneumatic lifting/lowering device 28 and beginning air of rear Pneumatic lifting/lowering device 29 through bottom dead centreGo out.Thus, the past Pneumatic lifting/lowering device 28 and rear Pneumatic lifting/lowering device 29 are to band-like steel before conveying band steel plate 11 is just startedThe blows air of plate 11, so banding steel plate 11 is reliably conveyed with float state.
In the above-described embodiment, it is also possible to rotor is punched into plate 3 from banding steel plate 11 and stator is punched plate 4 in minor face sideUpwards with more than 1 row or 3 row punchings.Fig. 6 is that rotor is punched into plate 3 and stator punching plate 4 with 3 row punchings from banding steel plate 11In the case of layout.In this case it is preferable that the one end, the other end and central authorities to the short side direction of banding steel plate 11This one end and the other end at 3 or to short side direction of portion this be obliquely blown from bottom to top towards conveying direction X at two it is emptyGas.
In the above-described embodiment, the past lifter 28 or rear narrow punching residual side of the lifter 29 to banding steel plate 1127 blows airs.
In the above-described embodiment, it is also possible to which the past Pneumatic lifting/lowering device 28 and rear Pneumatic lifting/lowering device 29 are held to banding steel plate 11Continuous ground blows air, sky is resisted with the drift P1～P6 from upper mould 15 to the pushing force that banding steel plate 11 is acted on by banding steel plate 11The pressure ground of gas is pushed to the upper surface of template 17.
In the above-described embodiment, it is also possible to which the past Pneumatic lifting/lowering device 28 and rear Pneumatic lifting/lowering device 29 are respectively to banding steel plateGas beyond 11 blows airs.
In the above-described embodiment, it is also possible to be punched plate 3 from the punching of banding steel plate 11 and rotor and stator punching plate 4 is differentProduct.
Embodiments of the present invention are this concludes the description of, but the embodiment is pointed out as an example, is not intended to define and is sent outBright scope.These new embodiments can be implemented with other various forms, in the model of the purport without departing from inventionVarious omissions, replacement, change can be carried out in enclosing.These embodiments and its deformation are included in scope or the master of inventionIn purport, and it is included in invention and its scope of equal value described in the scope of Patent request.