A stator lamination device for an automobile generator

Abstract

This invention discloses a stator lamination device for an automotive generator, belonging to the field of stator production technology. It includes a guide rail, positioning posts, a tidying assembly, a distributing assembly, and a lamination holder. The guide rail is inclinedly mounted on a frame. The positioning posts are mounted on the frame, with a tapered portion at their top. Stator laminations falling from the guide rail are fitted onto the tapered portion. The tidying assembly includes multiple tidying units circumferentially distributed on the upper end of the positioning posts, and the distributing assembly includes multiple falling units evenly distributed around the positioning posts. This invention designs the tidying and distributing assemblies. After the stator laminations are fitted onto the tapered portion, multiple push arms push the stator laminations, making them concentric with the positioning posts. Then, support arms and dial wheels rotate, causing the stator laminations to rotate and aligning the positioning grooves of the stator laminations with the limiting rods. Afterward, the support arms and dial wheels disengage from supporting the stator laminations, allowing them to fall onto the pallet, thus completing the automatic tidying of scattered stator laminations.

Description

Technical Field

[0001] This invention relates to the field of stator manufacturing technology, and more specifically to a stator lamination device for an automotive generator. Background Technology

[0002] An automotive alternator is a crucial component of a vehicle, converting the mechanical energy generated during driving into electrical energy to power the vehicle's electrical systems. The basic structure of an automotive alternator includes a housing, stator, rotor, rectifier, and end caps. The stator is typically made of stacked silicon steel sheets, also known as stator laminations. These stator laminations are formed by stamping sheet material using a punch press. The stamped stator laminations are generally ring-shaped, with inner grooves for inserting wires and outer grooves for positioning during lamination stacking.

[0003] Since lamination and blanking are performed on two separate machines, the blanked stator sheets need to be transferred to the lamination machine and the positioning slots aligned. Currently, the transfer and alignment of the stator sheets are generally done manually, resulting in low automation. Summary of the Invention

[0004] To address the aforementioned technical shortcomings, the purpose of this invention is to provide an automotive generator stator lamination device, which includes a tidying component and a material distribution component to organize and stack disordered stator laminations.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a stator lamination device for an automotive generator, comprising:

[0006] The guide rail is inclinedly mounted on the frame. One end of the guide rail is used to receive the stator laminations, and the other end is used to discharge the stator laminations downwards.

[0007] The positioning column is set on the frame, and the top of the positioning column is provided with a conical part. The stator laminations falling on the guide rail are fitted onto the conical part.

[0008] The aligning assembly comprises multiple aligning units circumferentially distributed on the upper end of the positioning column. Each aligning unit includes a first rotating shaft rotatably mounted on the frame, multiple support arms uniformly fixed on the first rotating shaft, a push arm having a radial linear reciprocating freedom along the positioning column, a dial wheel disposed between two adjacent support arms, and a limiting rod disposed on the frame. When the stator lamination falls onto the support arm, the multiple push arms push the stator lamination, causing the center of the stator lamination to coincide with the axis of the positioning column. When the first rotating shaft rotates, the support arm gradually disengages from the stator lamination, and the dial wheel drives the stator lamination to rotate, causing the positioning groove on the outer edge of the stator lamination to engage with the limiting rod. The dial wheel has a notch; when the notch faces the stator lamination, the stator lamination falls downwards.

[0009] The material distribution assembly includes multiple falling units evenly distributed around the positioning post. Each falling unit includes a first support and a multi-layer material support mechanism. The first support is fixed on the frame, and the material support mechanism includes a tray that is slidably mounted on the first support. When the end of the tray near the positioning post extends out of the first support, the tray can receive the stator laminations falling from above. When the end of the tray near the positioning post retracts into the first support, the stator laminations on the tray fall to the lower layer.

[0010] The lamination holder has a lifting seat on the frame below the positioning column. The lamination holder is set on the lifting seat and has a limit post on the lamination holder. The circumferential surface of the limit post has a limit protrusion that cooperates with the inner groove of the stator lamination.

[0011] Preferably, the falling unit further includes:

[0012] The second bracket is fixed on the frame. The second bracket is located on the side of the first bracket away from the positioning column. The support plate is fixed with a backing plate at the end of the first bracket away from the positioning column. A pin is fixed on the side of the backing plate away from the first bracket, passing through the second bracket. A first spring is sleeved on the pin between the backing plate and the second bracket. A baffle plate is fixed on the part of the pin on the side of the second bracket away from the first bracket.

[0013] The second rotating shaft is rotatably mounted on the second bracket and perpendicular to the pin. Multiple cams are fixed on the second rotating shaft. The protrusion directions of two adjacent cams are opposite. The cams correspond one-to-one with the abutment plate. When the protruding part of the cam abuts against the abutment plate, the abutment plate compresses the first spring, causing the end of the support plate near the positioning post to retract into the first bracket.

[0014] Preferably, a discharge plate is fixed to one end of the multiple pins located on the lower side away from the positioning post. The falling unit also includes a discharge plate that is lifted and set on the second bracket. The discharge plate is parallel to the second rotating shaft. A drive head is provided at the bottom of the discharge plate. When the discharge plate moves from top to bottom, the drive head pushes the discharge plate in sequence to move away from the positioning post and maintains the corresponding tray in the state of being retracted into the first bracket, so that the stator plates on the corresponding tray fall down in sequence.

[0015] Preferably, it further includes a transfer ring that is lifted and mounted on the frame. The transfer ring is used to receive stator laminations on the positioning column and transfer them to the lamination stacker. The transfer ring is provided with multiple receiving units, each receiving unit including:

[0016] A crossbar is inserted into the material transfer ring radially.

[0017] The material support head is located at one end of the crossbar near the center of the material transfer ring. The material support head is used to support the stator laminations and has positioning ridges that cooperate with the positioning grooves of the stator laminations.

[0018] A limiting ring is fixed to the portion of the crossbar located outside the material transfer ring.

[0019] The second spring is sleeved on the crossbar between the material support head and the material transfer ring.

[0020] Preferably, an unlocking ring is fixed on the frame and is located below the transfer ring; a drive block is fixed on the crossbar on the side of the limiting ring away from the transfer ring, and multiple unlocking blocks corresponding to the drive blocks are fixed on the unlocking ring. When the transfer ring moves downward until the unlocking block and the drive block come into contact, the unlocking block pushes the drive block to move away from the center of the transfer ring, so that the material support head is disengaged from the stator lamination.

[0021] Preferably, the frame is provided with two sets of support units. The support units are used to fix the positioning column. The two sets of support units alternately fix the positioning column. When the material transfer ring approaches one of the support units, the support unit makes way for the material transfer ring, and the other set of support units fixes the positioning column.

[0022] Preferably, the support unit includes sliding sleeves symmetrically fixed on the frames on both sides of the positioning column, two positioning pins slidably mounted on the two sliding sleeves respectively, and two push rods fixed on the frame. The movable ends of the two push rods are fixedly connected to the two positioning pins respectively, and the positioning column is provided with positioning blind holes that cooperate with the positioning pins.

[0023] Preferably, the limiting rod includes a first rod body and a second rod body, the first rod body is hinged to the top of the second rod body, a torsion spring is sleeved on the hinge shaft between the first rod body and the second rod body, and the top of the first rod body is inclined to the side away from the tapered part.

[0024] Preferably, the frame is provided with a slide rail, and the lifting seat is slidably mounted on the slide rail.

[0025] The beneficial effects of this invention are as follows:

[0026] This invention designs a tidying component and a sorting component. After the stator laminations are fitted onto the conical part, multiple push arms push the stator laminations to make them concentric with the positioning posts. Then, the support arms and dial wheels rotate, driving the stator laminations to rotate and aligning the positioning grooves of the stator laminations with the limiting rods. Afterward, the support arms and dial wheels disengage from supporting the stator laminations, allowing the stator laminations to fall onto the pallets, thus completing the automatic tidying of the scattered stator laminations. Adjacent pallets alternately extend their first supports to realize the stator laminations falling layer by layer. When the required number of stator laminations is reached, the discharge plate drives the discharge plate to move, causing the lower stator laminations to fall and stack layer by layer, and finally be transferred to the lamination stacking seat for convenient subsequent welding processing. Attached Figure Description

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a perspective view of the overall structure of an automotive generator stator lamination device provided in an embodiment of the present invention.

[0029] Figure 2 This is a front view of the overall structure of the present invention.

[0030] Figure 3 This is a top view of the overall structure of the present invention.

[0031] Figure 4 This is a schematic diagram showing the cooperation between the tidying unit, the falling unit, and the positioning column of the present invention.

[0032] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0033] Figure 6 This is a perspective view of the falling unit of the present invention.

[0034] Figure 7 This is a schematic diagram showing the fit between the transfer ring and the stacking seat of the present invention.

[0035] Figure 8 for Figure 7 A magnified view of a section at point B in the middle.

[0036] Figure 9 This is a schematic diagram showing the cooperation between the alignment unit and the limiting rod and positioning post of the present invention.

[0037] Figure 10 for Figure 9 A magnified view of a section at point C.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1. Guide rail, 2. Positioning post, 3. Conical part, 4. Alignment unit, 41. First rotating shaft, 42. Support arm, 43. Push arm, 44. Dial wheel, 441. Notch, 45. Limiting rod, 451. First rod body, 452. Second rod body, 5. Falling unit, 51. First bracket, 52. Support plate, 53. Second bracket, 54. Support plate, 55. Pin body, 56. First spring, 57. Baffle plate, 58. Second rotating shaft, 581. Cam 59. Discharge plate, 591. Discharge plate, 592. Drive head, 6. Stacking plate seat, 61. Lifting seat, 62. Limiting post, 63. Limiting protrusion, 7. Transfer ring, 71. Crossbar, 72. Material support head, 73. Positioning ridge, 74. Limiting ring, 75. Second spring, 76. Unlocking ring, 77. Drive block, 78. Unlocking block, 8. Support unit, 81. Sliding sleeve, 82. Positioning pin, 83. Push rod, 84. Positioning blind hole, 9. Slide rail. Detailed Implementation

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0041] Example 1:

[0042] like Figures 1 to 10 As shown, Embodiment 1 of the present invention provides a stator lamination device for an automotive generator, which can neatly stack scattered stator laminations to facilitate subsequent welding work.

[0043] See Figure 1 The present invention mainly includes a housing, a guide rail 1 fixed on the housing, a positioning post 2 located below the end of the guide rail 1, a tidying assembly and a material distribution assembly surrounding the positioning post 2, and a stacking seat 6 located below the positioning post 2.

[0044] The guide rail 1 is fixed at an angle to the frame. When a stator lamination is placed on one end of the guide rail 1, it slides diagonally downwards along the guide rail 1 until it reaches the lower end and falls from the discharge port at the bottom of the guide rail 1. A positioning post 2 is mounted on the frame below the discharge port. A conical part 3 is fixed to the top of the positioning post 2, and the stator lamination falling from the guide rail 1 fits onto the conical part 3. The diameter of the positioning post 2 is slightly smaller than the inner diameter of the stator lamination, and the diameter of the conical part 3 is also smaller than the inner diameter of the stator lamination. Because the position of the stator lamination on the conical part 3 changes randomly each time it falls from the discharge port, a neat assembly needs to be designed to align the center of the stator lamination with the center of the positioning post 2, so that the positioning lamination can slide downwards along the positioning post 2.

[0045] like Figure 4 , Figure 5 , Figure 9 and Figure 10 As shown, the aligning assembly of the present invention includes four aligning units 4 evenly distributed around the upper end of the positioning post 2. Each aligning unit 4 includes a first rotating shaft 41, three supporting arms 42, and a push arm 43. The first rotating shaft 41 is rotatably mounted on the frame and is driven to rotate by a motor. The three supporting arms 42 are evenly distributed around and fixed to the first rotating shaft 41, with an included angle of 120° between adjacent supporting arms 42. A cylinder is fixed on the frame, and the push arm 43 is fixed to the movable end of the cylinder. The cylinder can drive the push arm 43 to move linearly back and forth along the radial direction of the positioning post 2. The motor drives the first rotating shaft 41 to rotate at a fixed angle, rotating 60° each time. When the supporting arm 42 points to the center of the positioning post 2, the cylinder drives the push arm 43 to move. With the above setup, when the stator lamination falls onto the conical part 3, it will slide to the top of the positioning post 2. At this time, the support arm 42 will catch the stator lamination, and then the cylinder will drive the push arm 43 to push the stator lamination toward the axis of the positioning post 2, thereby aligning the center of the stator lamination with the center of the positioning post 2.

[0046] A dial wheel 44 is also provided between two adjacent support arms 42. The dial wheel 44 rotates around the first rotating shaft 41 as the first rotating shaft 41 rotates. The dial wheel 44 also has a notch 441. When the first rotating shaft 41 rotates until the dial wheel 44 contacts the edge of the stator lamination, the rubber layer of the edge of the dial wheel 44 abuts against the edge of the stator lamination and drives the stator lamination to rotate. A limit rod 45 is fixed on the frame. The limit rod 45 includes a second rod body 452 fixedly connected to the frame and a first rod body 451 hinged to the top of the second rod body 452. A torsion spring is sleeved on the hinge shaft between the first rod body 451 and the second rod body 452. When the dial wheel 44 drives the stator lamination to rotate, and the positioning groove on the outer edge of the stator lamination moves to the position of the limit rod 45, the torsion spring locks the first rod body 451 in the positioning groove, so that the dial wheel 44 can no longer drive the stator lamination to rotate. When the notch 441 on the dial wheel 44 is aligned with the stator plate, the stator plate disengages from the dial wheel 44. At this time, the stator plate also disengages from the support arm 42. Therefore, the stator plate will slide down the positioning post 2 under the limiting action of the limiting rod 45, thus completing the neat positioning of the stator plate.

[0047] Since the first rod 451 is close to the positioning post 2, in order to prevent the stator lamination from being accidentally fitted onto the first rod 451 when it falls from the guide rail 1, the present invention tilts the top of the first rod 451 away from the tapered part 3, so as to prevent the limiting rod 45 from being fitted inside the stator lamination.

[0048] To gradually stack the neatly arranged stator laminations and arrange them in a certain number of layers, this invention also includes a material distribution component, such as... Figure 4As shown, the material distribution assembly of the present invention includes four dropping units 5 evenly distributed around the positioning post 2, with the dropping units 5 and the aligning units 4 interleaved. The function of the dropping units 5 is to move the aligned and positioned stator laminations down layer by layer. Figure 6 As shown, the single dropping unit 5 of the present invention includes a first support 51 and a second support 53 fixedly connected to the frame, and a multi-layer material support mechanism. The second support 53 is located on the side of the first support 51 away from the positioning post 2. Each layer of the material support mechanism includes a support plate 52 slidably mounted on the first support 51. The support plate 52 is horizontal. A stop plate 54 is fixed to the portion of the support plate 52 located between the first support 51 and the second support 53. A pin 55 passing through the second support 53 is fixed to the side of the stop plate 54 away from the first support 51. A first spring 56 is sleeved on the pin 55 between the stop plate 54 and the second support 53. A baffle plate 57 is fixed to the portion of the pin 55 located on the side of the second support 53 away from the first support 51. When the stop plate 54 is pushed away from the first support 51, the stop plate 54 compresses the first spring 56 and moves, causing the end of the support plate 52 near the positioning post 2 to retract into the first support 51. This causes the stator laminations on the support plate 52 to fall to the lower layer. When the abutment plate 54 is not pushed, the abutment plate 54 is reset under the action of the first spring 56, so that the end of the support plate 52 near the positioning post 2 extends out of the first bracket 51, and the support plate 52 can receive the stator lamination falling from above.

[0049] By alternately driving the abutments 54 of adjacent material support mechanisms, the aligned stator laminations can be moved downwards layer by layer. To this end, a second rotating shaft 58 is rotatably mounted on the second bracket 53. The second rotating shaft 58 is perpendicular to the pin 55. The second rotating shaft 58 has a number of cams 581 fixed on it, the same number as the number of material support mechanism layers. Adjacent cams 581 have opposite protrusion directions, and each cam 581 corresponds to an abutment 54. Thus, when the second rotating shaft 58 is driven by a motor, the cams 581 engage with the abutments 54. When the protruding portion of the cam 581 abuts against the abutment 54, the abutment 54 compresses the first spring 56, causing the end of the support plate 52 near the positioning post 2 to retract into the first bracket 51. When the protruding portion of the cam 581 is not in contact with the abutment 54, the abutment 54, under the action of the first spring 56, keeps the support plate 52 extended out of the first bracket 51.

[0050] As the stator laminations fall layer by layer, the limiting rod 45 continues to act as a limit, maintaining the neatness of the stator laminations.

[0051] In order to drive the required number of stator laminations to fall and stack at once, such as Figure 6As shown, the present invention also fixes a discharge plate 59 to the end of the pin 55 in the multiple material support mechanisms located in the lower layer. The discharge plate 59 is located on the side of the second bracket 53 away from the positioning post 2. The present invention fixes a cylinder on the second bracket 53. The output end of the cylinder is fixed with a discharge plate 591. The discharge plate 591 is parallel to the second rotating shaft 58. The bottom of the discharge plate 591 is fixed with a drive head 592. When the cylinder drives the discharge plate 591 to move from top to bottom, the drive head 592 can push the discharge plate 59 to move away from the positioning post 2 in sequence, thereby causing the abutment plate 54 to compress the first spring 56, allowing the support plate 52 to retract into the first bracket 51, and causing the stator laminations on the corresponding support plate 52 to fall downward in sequence. Since the discharge plate 591 can maintain the state of being pushed away from the discharge plate 59 when it is not reset, it can maintain the state of the support plate 52 retracted into the first bracket 51, allowing the falling stators to gradually stack into a stator with a multi-layer stator lamination structure.

[0052] Combination Figure 2 and Figure 7 As shown, a slide rail 9 is fixed on the frame below the positioning column 2. A slide plate is slidably mounted on the slide rail 9, and a lifting seat 61 is fixed on the slide plate. The lifting seat 61 is raised and lowered using a cylinder. A lamination seat 6 is fixed to the movable end of the lifting seat 61. A limiting post 62 matching the inner diameter of the stator laminations is fixed on the lamination seat 6. A limiting protrusion 63 that mates with the inner groove of the stator laminations is provided on the circumferential surface of the limiting post 62. The falling stator can land on the lamination seat 6, and the lamination seat 6, carrying the stator after lamination alignment, moves along the slide rail 9 to the welding station for welding and fixing.

[0053] Example 2:

[0054] Based on Embodiment 1, considering that the stator may not fall smoothly enough onto the lamination holder 6, potentially causing the inner grooves of the stator laminations to not precisely align with the limiting protrusions 63 on the lamination holder 6, this invention designs a lifting and lowering transfer ring 7 mounted on the frame. The transfer ring 7 can receive the stator laminations on the positioning post 2 and transfer them to the lamination holder 6. Specifically, as shown... Figure 2 and Figure 7 As shown, the present invention has two guide rods fixed on the frame and a lead screw rotatably installed thereon. The lead screw is parallel to the two guide rods. A connecting plate is fixed on one side of the transfer ring 7. The connecting plate is slidably installed on the guide rod and threadedly engaged with the lead screw. In this way, when the lead screw rotates, it can drive the connecting plate and the transfer ring 7 to move up and down.

[0055] like Figure 7 and Figure 8As shown, the transfer ring 7 has four circumferentially evenly distributed receiving units. Each receiving unit includes a crossbar 71 that is radially movably inserted into the transfer ring 7, and a material support head 72 fixed to one end of the crossbar 71 near the center of the transfer ring 7. The material support head 72 has a protrusion for supporting the stator laminations, and a positioning ridge 73 that mates with the positioning grooves of the stator laminations is also fixed on the material support head 72. A second spring 75 is fitted onto the crossbar 71 between the material support head 72 and the transfer ring 7, and a limit ring 74 is fixed on the portion of the crossbar 71 located outside the transfer ring 7. Under the action of the second spring 75 and the limit ring 74, the material support head 72 can mate with the edge of the stator laminations to support them.

[0056] In this way, when the material transfer ring 7 moves to below the falling unit 5, under the guidance of the limiting rod 45 and the positioning ridge 73, the stator laminations can fall neatly onto the material support head 72.

[0057] An unlocking ring 76 is fixed on the frame below the transfer ring 7. Four unlocking blocks 78 are fixed on the unlocking ring 76, and a drive block 77 that cooperates with the unlocking blocks 78 is fixed on the crossbar 71 of the limiting ring 74 on the side away from the transfer ring 7. After the transfer ring 7 places the stator laminations onto the stacking seat 6, the transfer ring 7 continues to move downwards until the unlocking blocks 78 and drive blocks 77 collide. The unlocking blocks 78 then push the drive blocks 77 away from the center of the transfer ring 7, thereby causing the material support head 72 to detach from the stator laminations. At this time, the lifting seat 61 moves the stacking seat 6 downwards, removing the stacked stator from the transfer ring 7.

[0058] Example 3:

[0059] Based on the above embodiments, considering that in this invention, the stator laminations are fitted onto the positioning post 2 from the top and removed from the bottom, making it inconvenient to fix the positioning post 2 to the frame, therefore, as follows... Figure 2 As shown, the present invention has two sets of support units 8 on the frame for alternately fixing the positioning posts 2. Specifically, the support unit 8 includes two sliding sleeves 81, two positioning pins 82, and two push rods 83. The two sliding sleeves 81 are symmetrically fixed on the frame on both sides of the positioning post 2. The positioning pins 82 are slidably mounted on the sliding sleeves 81. The movable ends of the two push rods 83 are respectively fixedly connected to the two positioning pins 82, and the push rods 83 push the positioning pins 82 to move perpendicularly to the positioning post 2. The positioning post 2 has positioning blind holes 84 that cooperate with the positioning pins 82. When the two positioning pins 82 are inserted into the positioning blind holes 84 from both sides of the positioning post 2, they can fix and support the positioning post 2.

[0060] When the material transfer ring 7 approaches one of the support units 8, the positioning pin 82 in that support unit 8 retracts to make way for the material transfer ring 7, and the positioning pin 82 in the other support unit 8 extends to fix the positioning post 2.

[0061] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A stator lamination device for an automotive generator, characterized in that, include: The guide rail (1) is inclinedly arranged on the frame. One end of the guide rail (1) is used to receive the stator laminations, and the other end is used to discharge the stator laminations downward. Positioning column (2), the positioning column (2) is set on the frame, the top of the positioning column (2) is provided with a tapered part (3), and the stator laminations falling on the guide rail (1) are fitted on the tapered part (3); The aligning assembly includes multiple aligning units (4) circumferentially distributed on the upper end of the positioning column (2). Each aligning unit (4) includes a first rotating shaft (41) rotatably mounted on the frame, multiple support arms (42) uniformly fixed on the first rotating shaft (41), a push arm (43) having a radial linear reciprocating degree of freedom along the positioning column (2), a dial wheel (44) disposed between two adjacent support arms (42), and a limiting rod (45) disposed on the frame; when the stator lamination falls When the stator is on the support arm (42), the multiple push arms (43) push the stator plates so that the center of the stator plates coincides with the axis of the positioning column (2); when the first rotating shaft (41) rotates, the support arm (42) gradually disengages from the stator plates, and the dial wheel (44) drives the stator plates to rotate so that the positioning groove on the outer edge of the stator plates is locked on the limiting rod (45); the dial wheel (44) is provided with a notch (441), and when the notch (441) faces the stator plates, the stator plates fall downwards; The material distribution assembly includes multiple falling units (5) evenly distributed around the positioning post (2). Each falling unit (5) includes a first support (51) and a multi-layer material support mechanism. The first support (51) is fixed on the frame. The material support mechanism includes a tray (52) slidably mounted on the first support (51). When the end of the tray (52) near the positioning post (2) extends out of the first support (51), the tray (52) can receive the stator laminations falling from above. When the end of the tray (52) near the positioning post (2) retracts into the first support (51), the stator laminations on the tray (52) fall to the lower layer. The lamination seat (6) is provided with a lifting seat (61) on the frame below the positioning column (2). The lamination seat (6) is provided on the lifting seat (61). The lamination seat (6) is provided with a limiting column (62). The circumferential surface of the limiting column (62) is provided with a limiting protrusion (63) that cooperates with the inner groove of the stator lamination.

2. The stator lamination device for an automotive generator as described in claim 1, characterized in that, The falling unit (5) also includes: The second bracket (53) is fixed on the frame. The second bracket (53) is located on the side of the first bracket (51) away from the positioning post (2). The pallet (52) is fixed with a stop plate (54) at the end of the first bracket (51) away from the positioning post (2). A pin (55) passing through the second bracket (53) is fixed on the side of the stop plate (54) away from the first bracket (51). A first spring (56) is sleeved on the pin (55) between the stop plate (54) and the second bracket (53). A baffle plate (57) is fixed on the part of the pin (55) on the side of the second bracket (53) away from the first bracket (51). The second rotating shaft (58) is rotatably mounted on the second bracket (53) and perpendicular to the pin (55). Multiple cams (581) are fixed on the second rotating shaft (58). The protrusion directions of two adjacent cams (581) are opposite. The cams (581) correspond one-to-one with the abutment plate (54). When the protruding part of the cam (581) abuts against the abutment plate (54), the abutment plate (54) compresses the first spring (56), causing the end of the support plate (52) near the positioning post (2) to retract into the first bracket (51).

3. The stator lamination device for an automotive generator as described in claim 2, characterized in that, Multiple pins (55) located on the lower side are fixed with a discharge plate (59) at one end away from the positioning post (2). The falling unit (5) also includes a discharge plate (591) that is lifted and lowered on the second bracket (53). The discharge plate (591) is parallel to the second rotating shaft (58). A drive head (592) is provided at the bottom of the discharge plate (591). When the discharge plate (591) moves from top to bottom, the drive head (592) pushes the discharge plate (59) to move away from the positioning post (2) and maintains the corresponding support plate (52) retracted into the first bracket (51), so that the stator plates on the corresponding support plate (52) fall down in sequence.

4. The stator lamination device for an automotive generator as described in claim 1, characterized in that, It also includes a transfer ring (7) that is lifted and mounted on the frame. The transfer ring (7) is used to receive the stator laminations on the positioning column (2) and transfer them to the lamination stack (6). The transfer ring (7) is provided with multiple receiving units, and the receiving units include: A crossbar (71) is movably inserted into the transfer ring (7) radially along the transfer ring (7); Material support head (72) is located at one end of the crossbar (71) near the center of the material transfer ring (7). The material support head (72) is used to support the stator laminations. The material support head (72) is provided with a positioning ridge (73) that cooperates with the positioning groove of the stator lamination. A limiting ring (74) is fixed to the portion of the crossbar (71) located outside the transfer ring (7); The second spring (75) is sleeved on the crossbar (71) between the material support head (72) and the material transfer ring (7).

5. The stator lamination device for an automotive generator as described in claim 4, characterized in that, An unlocking ring (76) is fixed on the frame and is located below the transfer ring (7). A drive block (77) is fixed on the crossbar (71) of the limiting ring (74) on the side away from the transfer ring (7). Multiple unlocking blocks (78) corresponding to the drive block (77) are fixed on the unlocking ring (76). When the transfer ring (7) moves downward until the unlocking block (78) and the drive block (77) come into contact, the unlocking block (78) pushes the drive block (77) to move away from the center of the transfer ring (7), so that the material support head (72) is disengaged from the stator lamination.

6. The stator lamination device for an automotive generator as described in claim 4, characterized in that, The frame is provided with two sets of support units (8). The support units (8) are used to fix the positioning column (2). The two sets of support units (8) fix the positioning column (2) alternately. When the material transfer ring (7) approaches one of the support units (8), the support unit (8) makes way for the material transfer ring (7), and the other set of support units (8) fixes the positioning column (2).

7. The stator lamination device for an automotive generator as described in claim 6, characterized in that, The support unit (8) includes sliding sleeves (81) symmetrically fixed on the frame on both sides of the positioning column (2), two positioning pins (82) slidably mounted on the two sliding sleeves (81) respectively, and push rods (83) fixed on the frame. The movable ends of the two push rods (83) are fixedly connected to the two positioning pins (82) respectively. The positioning column (2) is provided with positioning blind holes (84) that cooperate with the positioning pins (82).

8. The stator lamination device for an automotive generator as described in claim 1, characterized in that, The limiting rod (45) includes a first rod body (451) and a second rod body (452). The first rod body (451) is hinged to the top of the second rod body (452). A torsion spring is sleeved on the hinge shaft between the first rod body (451) and the second rod body (452). The top of the first rod body (451) is inclined to the side away from the tapered part (3).

9. The stator lamination device for an automotive generator as described in claim 1, characterized in that, The frame is provided with a slide rail (9), and the lifting seat (61) is slidably installed on the slide rail (9).

Images