Stator assembly production line and assembly method

Abstract

The present invention relates to a stator assembly production line and an assembly method, wherein the stator assembly production line comprises: a frame; a feeding structure, wherein the feeding structure comprises a feeding turntable rotatably arranged on the top of the frame, a supporting assembly arranged around the top of the feeding turntable, an infusion tray fixed on the top of the frame and located on one side of the feeding turntable, and a feeding assembly mounted on the supporting assembly and the top of the infusion tray; a glue coating structure, wherein the glue coating structure comprises a glue coating turntable rotatably arranged on the top of the frame, a glue coating turntable arranged around the top of the glue coating turntable, and a glue coating assembly arranged outside the glue coating turntable, wherein the feeding assembly absorbs the stator sheets in the infusion tray and places them on the glue coating tray, and the glue coating assembly coats the upper surface of the stator sheets with glue; the stator assembly production line of the present invention has stronger versatility, improves the transfer, bonding and press-fitting efficiency of the stator sheets, and will not cause the situation of inadequate press-fitting or excessive press-fitting, thereby improving the qualified rate of the finished stators.

Description

Technical Field

[0001] The invention belongs to the technical field of stator assembly, and in particular relates to a stator assembly production line and an assembly method. Background Art

[0002] The stator is the stationary part of the motor. The stator consists of three parts: the stator core, the stator winding and the frame. The main function of the stator is to generate a rotating magnetic field, while the main function of the rotor is to be cut by the magnetic lines of force in the rotating magnetic field to generate (output) current. When the stator is processed and produced, a single stator sheet is usually stamped out on a silicon steel plate using a stamping process, and then the stator sheets are stacked and bonded together by welding or gluing to form a stator.

[0003] In the existing stator assembly process, the transfer, handling and pressing of the stator sheets still require the intervention of workers, which not only affects the assembly efficiency of the stator, but also the inevitable operational errors caused by manual intervention in each operation process will affect the assembly accuracy of the stator sheets and thus affect the qualification rate of the stator. Summary of the invention

[0004] The present invention provides a stator assembly production line and an assembly method, which solve the defects in the prior art that the assembly efficiency of the stator and the qualified rate of finished products are affected due to manual intervention in the stator assembly process.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is: a stator assembly production line, which comprises:

[0006] frame;

[0007] A feeding structure, the feeding structure comprises a feeding turntable rotatably arranged on the top of a frame, a supporting assembly arranged around the top of the feeding turntable, an infusion tray fixed on the top of the frame and located on one side of the feeding turntable, and a feeding assembly mounted on the supporting assembly and the top of the infusion tray, the stator sheets are stacked on the supporting assembly, the feeding assembly absorbs the single stator sheet on the top layer of the supporting assembly, and places it in the infusion tray;

[0008] The glue coating structure includes a glue coating turntable rotatably arranged on the top of the frame, a glue coating disk arranged around the top of the glue coating turntable, and a glue coating assembly arranged outside the glue coating turntable. The feeding assembly absorbs the stator sheet in the infusion disk and places it on the glue coating disk. The glue coating assembly coats the upper surface of the stator sheet with glue.

[0009] An adjustment structure, the adjustment structure comprises an angle adjustment component and a flip component fixed on the top of the frame, a transport component mounted above the glue coating disc and the angle adjustment component, and a transfer component arranged below the flip component, the transport component sucks the stator sheet in the glue coating disc and places it on the angle adjustment component or sucks the stator sheet on the angle adjustment component and places it on the flip component, and the adjustment angles of the angle adjustment component are equidistantly distributed; the flip component flips the stator sheet so that its glue coating surface faces downward and its infusion surface faces upward, and places it on the transfer component;

[0010] A press-fit structure, the press-fit structure comprising a load-bearing component and a press-fit component;

[0011] The bearing assembly includes a bearing frame, an inner gauge fixed on the top of the bearing frame, a tray mounted on the inner gauge in a liftable manner, and a second insertion rod arranged around the top of the bearing frame and passing through the tray. The transport assembly absorbs the stator sheet on the transfer assembly and places it on the tray. The inner gauge is used to limit the inner side wall of the stator sheet.

[0012] The press assembly includes a press frame mounted above the carrier frame, a press frame escalably arranged at the bottom of the press frame, a press plate fixed at the bottom of the press frame, an outer gauge fixed at the bottom of the press plate, a press block elastically arranged at the bottom of the press plate and abutting against the inner side wall of the outer gauge, and a slot arranged around the bottom of the press block;

[0013] When the pressing frame descends, the pressing block presses against the upper surface of the stator sheet, the slot is used to limit the second insertion rod, and the outer gauge is used to limit the outer side wall of the stator sheet.

[0014] Optimally, the support assembly includes an outer fixed plate fixed on the top of the loading turntable, a first insertion rod arranged around the top of the outer fixed plate, a first guide portion obliquely arranged on the top of the first insertion rod, and an inner lifting plate that can be lifted and lowered on the first insertion rod, and the stator sheet is inserted on the first insertion rod.

[0015] Optimally, the loading assembly includes a loading rack, a loading plate movably arranged on one side of the loading rack, a first lifting plate movably arranged on one side of the loading plate, an air plate fixed at the bottom of the first lifting plate, a leveling plate fixed at the bottom of the air plate, a suction nozzle arranged in a ring on the top of the air plate, and air holes and avoidance holes passing through the leveling plate, the suction nozzle is penetrated in the air hole and is used to suck the single-piece stator sheet on the uppermost layer of the inner lifting plate.

[0016] Optimally, the loading structure also includes a second lifting plate that can be lifted and lowered at the bottom of the loading rack, a partition plate fixed to the bottom of the second lifting plate, a partition air block arranged around the inner wall of the partition plate, and an air groove opened on the inner side of the partition air block, wherein the partition air block is used to separate the first layer of stator sheets and the second layer of stator sheets at the top of the inner lifting plate.

[0017] Optimally, the angle adjustment assembly includes an adjustment frame fixed on the top of the frame, a receiving plate rotatably installed on the top of the adjustment frame, a first positioning block annularly arranged on the top of the receiving plate, and a first positioning portion obliquely opened on the top of the first positioning block, and the conveying assembly absorbs the stator sheet in the glue coating plate and places it on the receiving plate.

[0018] Optimally, the flipping assembly includes a flipping frame fixed on the top of the frame, a third lifting plate liftably arranged on one side of the flipping frame, a flipping plate rotatably mounted on the side of the third lifting plate away from the flipping frame, an adjustment plate adjustably arranged on one side of the flipping plate, and a suction mechanism fixed on both sides of the adjustment plate, the conveying assembly sucks the stator sheet in the receiving tray and places it on the suction mechanism, and the flipping assembly flips the stator sheet so that its glue-coated surface faces downward and the impregnated surface faces upward.

[0019] Optimally, the transfer assembly includes a transfer frame fixed on the top of the frame, a transfer plate rotatably mounted on the top of the transfer frame, a transfer disk fixed at intervals on the top of the transfer plate, and a placement groove opened on the top of the transfer disk, the inner diameter of the placement groove is larger than the inner diameter of the stator sheet, and the outer diameter of the placement groove is smaller than the outer diameter of the stator sheet, and the flipping assembly places the flipped stator sheet on the transfer disk.

[0020] Optimally, the supporting assembly also includes a main slide plate slidably connected to the supporting frame, a first inclined pin surface obliquely opened at the top of the main slide plate, a secondary slide plate arranged at the top of the main slide plate, a second inclined pin surface obliquely opened at the bottom of the secondary slide plate and matching with the first inclined pin surface, a top plate fixed on the top of the secondary slide plate, and a top column ring-arranged on the top of the top plate and fixed to the tray.

[0021] Optimally, the press-fitting assembly also includes a transition block fixed on the top of the press frame, a transition groove opened at the bottom of the transition block, a through hole coaxially passing through the transition block and connected to the transition groove, a pressure sensor fixed on the top of the press frame and located in the transition groove, a connecting rod that can be raised and lowered and passes through the through hole, and a contact block fixed at the bottom of the connecting rod and matched with the pressure sensor, wherein the diameter of the contact block is larger than the diameter of the through hole.

[0022] The present invention also provides another technical solution: a stator assembly method, which comprises the following steps:

[0023] S1, stacking the stator sheets on a support assembly;

[0024] S2, the loading assembly sucks the single stator sheet on the uppermost layer of the support assembly each time, and immerses the bottom surface of the stator sheet in an activator;

[0025] S3, the glue coating structure performs glue coating on the top surface of the stator sheet in S2;

[0026] S4, the angle adjustment component adjusts the angle of the stator sheet in S3, and the adjustment angles of the angle adjustment component are equidistantly distributed;

[0027] S5, the turning assembly turns over the stator sheet in S4, so that the glue-coated surface of the stator sheet faces downward and the activator-soaked surface faces upward;

[0028] S6, placing the stator sheets turned over in S5 on the bearing assembly in sequence;

[0029] S7. The press-fitting assembly sequentially presses the stator sheets on the bearing assembly to form a stator.

[0030] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0031] The stator assembly production line of the present invention performs an activator soaking treatment on the bottom surface of the stator sheet through the feeding structure, and then performs a glue coating treatment on the top surface of the stator sheet by the glue coating structure, and then transfers it to the adjustment structure, and the adjustment structure performs angle adjustment and flipping treatment on each stator sheet placed there, so as to improve the stability of the structure after the subsequent stator assembly, and the adjustment structure transfers the stator sheet to the pressing structure after adjusting the stator sheet, and the pressing structure presses the stator sheets placed there in turn, so that the activator layer and the glue coating layer of two adjacent layers of stator sheets are fully in contact, so as to form a finished stator. The whole process has a high degree of automation, and no operator intervention is required in the whole operation process, thereby eliminating the influence of human factors, improving the transfer, bonding and pressing efficiency of the stator sheet, and there will be no situation of inadequate pressing or excessive pressing, thereby improving the qualified rate of the finished stator. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the stator sheet of the present invention;

[0033] Figure 2 It is a structural schematic diagram of the present invention;

[0034] Figure 3 It is a partial structural schematic diagram of the feeding structure of the present invention;

[0035] Figure 4 It is a partial structural schematic diagram of the feeding structure of the present invention;

[0036] Figure 5It is a structural schematic diagram of a flat plate in the feeding structure of the present invention;

[0037] Figure 6 It is a structural schematic diagram of the adjustment structure of the present invention;

[0038] Figure 7 It is a structural schematic diagram of the flip assembly in the adjustment structure of the present invention;

[0039] Figure 8 It is a structural schematic diagram of the transfer component in the adjustment structure of the present invention;

[0040] Fig. 9 It is a structural schematic diagram of the receiving plate in the adjustment structure of the present invention;

[0041] Fig.10 It is a structural schematic diagram of the load-bearing component in the press-fit structure of the present invention;

[0042] Fig.11 It is a schematic diagram of the local structure of the load-bearing component in the press-fit structure of the present invention;

[0043] Fig.12 is a cross-sectional view of a press-fit assembly in the press-fit structure of the present invention;

[0044] Fig.13 A partial cross-sectional view of a press-fit assembly in the press-fit structure of the present invention;

[0045] Fig.14 It is a structural schematic diagram of the bottom of the press-fitting assembly in the press-fitting structure of the present invention;

[0046] Fig.15 It is a structural schematic diagram of the handling assembly in the press-fitting structure of the present invention;

[0047] Description of reference numerals:

[0048] 1. Frame;

[0049] 2. Feeding structure; 21. Feeding turntable; 22. External fixed plate; 23. Internal lifting plate; 24. First plug rod; 25. First guide part; 26. Feeding rack; 27. Feeding plate; 28. First lifting plate; 29. ​​Support column; 210. Air plate; 211. Suction nozzle; 212. Leveling plate; 213. Air hole; 214. Second lifting plate; 215. Separation plate; 216. Separation air block; 217. Air groove; 218. Avoidance hole; 219. Infusion rack; 220. Infusion plate; 221. Infusion sponge;

[0050] 3. Gluing structure; 31. Gluing turntable; 32. Gluing disc; 33. X-axis linear module; 34. Y-axis linear module; 35. Gluing head;

[0051] 4. Adjustment structure; 41. Handling assembly; 42. Adjustment frame; 43. Receiver plate; 44. First positioning block; 45. First positioning portion; 46. Turnover frame; 47. Third lifting plate; 48. Turnover cylinder; 49. Turnover plate; 410. First clamping plate; 411. Clamping groove; 412. Adjustment plate; 413. Adjustment groove; 414. Transfer frame; 415. Transfer plate; 416. Transfer plate; 417. Placement groove; 418. Second positioning block; 419. Second positioning portion;

[0052] 5. Press-fit structure;

[0053] 51. Bearing assembly; 510. Bearing frame; 511. Guide plate; 512. First wear-resistant plate; 513. Second wear-resistant plate; 514. Main slide plate; 515. First oblique pin surface; 516. Third wear-resistant plate; 517. Second slide plate; 518. Second oblique pin surface; 519. Fourth wear-resistant plate; 5110. Lifting cylinder; 5111. Lifting plate; 5112. Connecting plate; 5113. Top plate; 5114. Fixed plate; 5115. Top column; 5116. Tray; 5117. Boss; 5118. Second plug rod; 5119. Second guide portion; 5120. Internal gauge; 5121. First guide surface;

[0054] 52. Press-fit components;

[0055] 520, press-fitting frame; 521, press frame; 522, transition block; 523, transition groove; 524, through hole; 525, connecting rod; 526, contact block; 527, pressure sensor; 528, press plate; 529, outer gauge; 5210, groove; 5211, second guide surface; 5212, press block; 5213, spring groove; 5214, spring; 5215, clamping groove; 5216, through groove; 5217, clamping plate; 5218, fixing column; 5219, slot; 5220, first avoidance groove; 5221, second avoidance groove;

[0056] 53. Blanking assembly;

[0057] 530, first movable plate; 531, second movable plate; 532, transport frame; 533, angle plate; 534, finger cylinder; 535, second clamping plate; 536, avoidance arc; 537, clamping block;

[0058] 6. Stator segments. DETAILED DESCRIPTION

[0059] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0060] like Figure 1 , which is a schematic structural diagram of the stator sheets 6 of the present invention, the stator sheets 6 are stacked and bonded together to form a stator structure.

[0061] like Figure 2 As shown, the structural schematic diagram of the present invention is used for loading, transporting and bonding Figure 1 The stator sheet 6 in the stator structure is formed, and the assembly line includes a frame 1, a feeding structure 2, a gluing structure 3, an adjustment structure 4 and a press-fitting structure 5. The frame 1 is welded by aluminum profiles, and the feeding structure 2, the gluing structure 3, the adjustment structure 4 and the press-fitting structure 5 are all fixed on the frame 1 and arranged in sequence along the flow order of the stator sheet 6.

[0062] The production steps are as follows: the operator inserts the stator sheet 6 on the feeding structure 2, the feeding structure 2 clamps the uppermost stator sheet 6 and performs an activator treatment on the bottom surface of the stator sheet 6, and then transfers it to the glue coating structure 3; the glue coating structure 3 performs glue coating on the top surface of the stator sheet 6 after the bottom surface is soaked with the activator, and then transfers it to the adjustment structure 4;

[0063] The adjustment structure 4 performs angle adjustment and flipping processing on each stator sheet 6 placed there. The angle adjustment processing is to make each layer of stator sheets 6 have equal angle staggered settings during the process of bonding to form the stator, so that the plug-in positions of two adjacent layers of stator sheets 6 are staggered and bite together, avoiding the finished stator from falling apart at the plug-in position, and improving the stability of the structure after the subsequent stator assembly (mainly for spliced ​​stator sheets). The flipping processing is to flip the stator sheet 6 180° in the vertical direction, so that the glue-coated surface of the stator sheet 6 faces downward and the activator-soaked surface faces upward, which is convenient for subsequent press-fitting.

[0064] After adjusting the stator sheets 6, the adjustment structure 4 is transferred to the press-fitting structure 5, which presses the stator sheets 6 placed therein in turn, so that the activator layer and the glue layer of two adjacent layers of stator sheets 6 are in full contact, thereby forming a finished stator, and finally transferred to the subsequent process.

[0065] Figure 2 The stator assembly production line shown can achieve compatibility with multiple models. The stator is formed by gluing outside the mold, which is lower in cost than in-mold molding. At the same time, the equipment is more versatile and can achieve molding and bonding of the entire stator, as well as the molding and bonding of scattered stators.

[0066] like Figure 1 As shown, the structure of the whole stator is that the stator sheet 6 is annular, the inner ring of the stator sheet 6 is provided with wire grooves, the stator sheets 6 are stacked, and two adjacent layers of stator sheets 6 are bonded to form a stator; the structure of the scattered sheet stator is not annular, but fan-shaped, and multiple fan-shaped scattered sheet stators are spliced ​​together to form an annular stator sheet 6, and then the spliced ​​annular stator sheets 6 are bonded to form a stator. In this way, in the early process of stamping the scattered sheet stator, the utilization rate of the silicon steel sheet is higher and the cost is lower.

[0067] The processing process of forming annular stator segments by splicing fan-shaped loose stators is more rigorous, because the stator segments are not integral at this time. During transportation and bonding, height deviations are likely to occur between two adjacent fan-shaped loose stators, which will directly affect the qualified rate of the finished stator. Figure 2 The stator assembly production line shown can be adapted to the transfer and bonding of fan-shaped scattered stators, thereby ultimately forming a stator with greater versatility.

[0068] like Figure 3 , 4 As shown in FIG. 1 , it is a schematic diagram of the structure of the feeding structure 2, wherein the operator inserts the stator sheet 6 on the feeding structure 2, and the feeding structure 2 clamps the stator sheet 6 on the top layer and treats the bottom surface of the stator sheet 6 with an activator, and then transfers it to the glue coating structure 3. The feeding structure 2 includes a feeding turntable 21, a support assembly, a feeding assembly, and an activator immersion assembly. The feeding turntable 21 is rotated and installed on the frame 1 by a servo motor, and the feeding turntable 21 is driven to rotate by the servo motor, so that the operator can insert the stator sheet 6 on the support assembly (the stator sheet here can be Figure 1 The annular integral stator sheet shown may also be a stator sheet formed by splicing fan-shaped scattered stators).

[0069] The support assembly is arranged on the top of the loading turntable 21 and is used to receive the stator sheets 6. The loading assembly is used to absorb each layer of stator sheets 6 on the support assembly and transfer them to the activator assembly to complete the activator treatment of the bottom surface of the stator sheets 6 to facilitate subsequent bonding.

[0070] The supporting assembly includes an outer fixed disk 22, an inner lifting disk 23, a first plug rod 24 and a first guide portion 25. The outer fixed disk 22 is fixed to the top of the loading turntable 21. The first plug rod 24 is arranged on the top of the outer fixed disk 22. The cross-sectional size of the first plug rod 24 matches the wire groove size of the inner wall of the stator sheet 6. The first guide portion 25 is obliquely arranged on the top of the first plug rod 24. The wire groove in the stator sheet 6 is guided by the first guide portion 25 to facilitate the insertion of the stator sheet 6.

[0071] If it is a fan-shaped scattered stator, the inner side wall of the scattered stator is also provided with a wire groove. Through the cooperation of the wire groove, the first guide portion 25 and the first insertion rod 24, the scattered stator is inserted on the first insertion rod, and multiple stator segments on the same plane are inserted on the first insertion rod 24 to form a stator segment 6.

[0072] The inner lifting plate 23 is arranged inside the outer fixed plate 22, and a through groove cooperating with the first insertion rod 24 is opened on the inner lifting plate 23, so as to avoid the position of the first insertion rod 24; secondly, when the inner lifting plate 23 rises to lift the stator sheet 6, the first insertion rod 24 limits the inner lifting plate 23, thereby improving the stability of the lifting and lowering movement of the inner lifting plate 23 and the accuracy of the lifting and lowering position, thereby improving the accuracy of the transfer component in sucking the uppermost stator sheet 6 of the inner lifting plate 23.

[0073] The stator sheet 6 is inserted on the first insertion rod 24 and abuts against the upper surface of the inner lifting plate 23, and the inner lifting plate 23 is used to drag the multi-layer stator sheet 6. The first insertion rod 24 has two functions: one is to guide and limit the inserted stator sheet 6; the other is to limit the lifting and lowering movement of the inner lifting plate 23 and the stator sheet 6 to prevent the inner lifting plate 23 and the stator sheet 6 from deflecting when lifting.

[0074] The cylinder body of the lifting cylinder is fixed on the frame 1, and the piston rod of the lifting cylinder is connected to a lifting block, which is driven to rise by the lifting cylinder, and then the lifting block pushes the inner lifting plate 23 to rise, and the stator sheet 6 is lifted (the lifting cylinder and the lifting block are not shown in the figure). Every time the feeding assembly sucks a stator sheet 6 on the top layer of the inner lifting plate 23, the lifting cylinder drives the inner lifting plate 23 to rise to a height of the thickness of a stator sheet 6.

[0075] When the stator sheet 6 is inserted on the first insertion rod 24, the shape of the stator sheet 6 can be flexibly changed according to customer needs. For example, six groups of external fixed disks 22 are arranged on the feeding turntable 21. Each group of external fixed disks 22 can be inserted with type A stator sheets 6, or type A stator sheets 6 can be inserted on one group of external fixed disks 22 and type B stator sheets 6 can be inserted on the other group of external fixed disks 22, thereby realizing the diversity of stator assembly.

[0076] The loading assembly is used to suck up a stator sheet 6 on the top layer of the inner lifting plate 23 and transfer it to the activator assembly. The loading assembly includes a loading rack 26, a loading plate 27, a first lifting plate 28, a support column 29, an air plate 210, a suction nozzle 211, a leveling plate 212, an air hole 213 and an avoidance hole 218; the loading rack 26 is fixed to the frame 1 by screws and is located on one side of the loading turntable 21.

[0077] The linear slide is fixed on one side of the loading rack 26, and the loading plate 27 is connected to the linear slide. The loading plate 27 is driven to move by the linear slide, thereby completing the transfer of the stator sheet 6. The lifting cylinder is fixed on the side of the loading plate 27 away from the loading rack 26, and the first lifting plate 28 is connected to the lifting cylinder, and the first lifting plate 28 is driven to move up and down by the lifting cylinder.

[0078] like Figure 4As shown, the support column 29 is fixed at the bottom of the first lifting plate 28 to provide space for the subsequent installation of the suction nozzle 211. The gas plate 210 is fixed at the bottom of the support column 29. A plurality of suction nozzles 211 are arranged around the gas plate 210 to suck the stator sheet 6 on the top layer of the inner lifting plate 23. The leveling plate 212 is fixed at the bottom of the gas plate 210. Figure 5 As shown, the air hole 213 is arranged on the leveling plate 212 and penetrates the leveling plate 212, and the suction nozzle 211 on the air plate 210 is penetrated in the air hole 213. The avoidance hole 218 penetrates the leveling plate 212, and avoids the first insertion rod 24 below when sucking the stator sheet 6, avoiding interference with the first insertion rod 24.

[0079] By fixing the leveling plate 212 at the bottom of the air plate 210, when sucking the stator sheet 6 on the top layer of the inner lifting plate 23, the leveling plate 212 is pressed down on the stator sheet 6 on the top layer of the inner lifting plate 23, and then the stator sheet 6 is sucked by the suction nozzle 211 on the air plate 210, and the leveling plate 212 can ensure the horizontality of the stator sheet 6. If only the suction nozzle 211 is used for suction and transfer, due to the limited suction position during suction and transfer, when facing the fan-shaped scattered stator, it is easy to have a height difference between two adjacent scattered stators, which will directly affect the subsequent assembly of the stator sheet 6 (therefore, the setting of the leveling plate 212 here, while meeting the requirements Figure 1 The transport of the annular integral stator sheet shown in the figure can also meet the transport of fan-shaped scattered stators).

[0080] like Figure 4 As shown, the lifting slide is fixed on the side of the loading rack 26 close to the loading turntable 21, the second lifting plate 214 is connected to the lifting slide, and the partition plate 215 is fixed on the sliding part of the lifting slide, and the partition plate 215 is driven to move up and down by the lifting slide. The partition air block 216 is arranged on the inner side wall of the annular partition plate 215, the nozzle is connected to the partition air block 216 and is externally connected to the air pump, and the air groove 217 is opened on the inner side of the partition air block 216 and is arranged horizontally, and the air groove 217 is connected to the nozzle.

[0081] When the suction nozzle 211 sucks the stator sheet 6 on the top layer of the inner lifting plate 23, the stator sheet 6 on the second layer may be lifted up due to the contact between the stator sheets 6 on the first layer and the stator sheets 6 on the second layer. Therefore, air is blown inward through the separating air block 216 arranged in a ring to separate the stator sheets 6 on the top layer and the stator sheets 6 on the second layer.

[0082] like Figure 4As shown, the infusion rack 219 is fixed on the frame 1 by screw fastening, the infusion tray 220 is fixed on the top of the infusion rack 219, and the infusion tank is annular and is opened on the top of the infusion tray 220. The infusion tank is filled with activator, and the infusion sponge 221 is placed in the infusion tank, so as to absorb the activator in the infusion tank. When the suction nozzle 211 sucks a stator sheet 6 on the top layer of the inner lifting tray 23 and places it on the infusion sponge 221, the lower surface of the stator sheet 6 will absorb the activator, which is convenient for subsequent gluing.

[0083] The height of the soaking agent sponge 221 is equal to the depth of the soaking agent tank, ensuring that the lower surface of the stator sheet 6 can absorb enough activator. By providing the soaking agent sponge 221, it can ensure that the activator is applied more evenly on the bottom of the stator sheet 6, and at the same time, it can prevent the activator from flowing to the upper surface of the stator sheet 6, causing waste of activator or contamination of the upper surface of the stator.

[0084] like Figure 2 As shown, the glue coating structure 3 is fixed on the frame 1 and is located on one side of the feeding structure 2. The feeding structure 2 absorbs the stator sheet 6 after the bottom surface is dipped and transfers it to the glue coating structure 3. The glue coating structure 3 applies glue on the upper surface of the stator sheet 6. Finally, when the stator sheets 6 are stacked and assembled, the activators of two adjacent stator sheets 6 are in contact with the glue, thereby improving the bonding firmness of the stator sheets 6.

[0085] The glue coating structure 3 includes a glue coating turntable 31, a glue coating disc 32 and a glue coating assembly. The glue coating turntable 31 is rotated and installed on the frame 1 by a servo motor. The servo motor drives the glue coating turntable 31 to rotate, thereby cooperating with the action of the feeding structure 2. The glue coating disc 32 is arranged on the top of the glue coating turntable 31, and is used to receive the stator sheet 6 after the feeding structure 2 absorbs the bottom surface infusion. The glue coating disc 32 has the same structure as the receiving disc 43 in the adjustment structure 4. The stator sheet 6 placed there is positioned by the first positioning block 44 and the first positioning portion 45 arranged on the top, and the stator sheet 6 is prevented from being offset by the glue application.

[0086] The glue coating assembly is fixed on the top of the frame 1 and is located outside the glue coating turntable 31. The glue coating is applied to the top surface of the stator sheet 6 after the bottom surface is dipped. The glue coating assembly includes an X-axis linear module 33, a Y-axis linear module 34 and a glue dispensing head 35. The Y-axis linear module 34 is connected to the X-axis linear module 33, and the glue dispensing head 35 is on the Y-axis linear module 34. The glue dispensing head 35 is driven by the X-axis linear module 33 and the Y-axis linear module 34 to move on the glue coating disk 32, and then the glue dispensing head 35 dispenses glue on the upper surface of the stator sheet 6.

[0087] The adjustment structure 4 is fixed on the top of the frame 1 and is located on one side of the glue coating structure 3. Figure 6As shown, the adjustment structure 4 includes a transport component 41, an angle adjustment component, a flip component and a transfer component, wherein the transport component 41 is used to transport the stator sheet 6 after the top surface is coated with glue to the angle adjustment component; the angle adjustment component performs angle adjustment on the stator sheet 6, and the purpose of the angle adjustment is to make each layer of stator sheets 6 have equal angle staggered settings during the process of bonding to form the stator, so that the plug-in positions of two adjacent layers of stator sheets 6 are staggered and bite together, avoiding the finished stator from falling apart at the plug-in position, and improving the stability of the structure after the subsequent stator assembly.

[0088] The angle adjustment component is mainly set for the fan-shaped loose-piece stator. Therefore, the stator slices at this time are not in an integral ring, but are spliced ​​into a ring by fan-shaped loose-piece stators. If the angle is not adjusted, the splicing lines of the stator will completely overlap after bonding, and the stator will fall apart at the joint during use.

[0089] The conveying assembly 41 transfers the stator sheet 6 after the angle adjustment to the flipping assembly, and the flipping assembly flips the stator sheet 6 180° vertically, so that the glue-coated surface of the stator sheet 6 faces downward and the activator-soaked surface faces upward, which is convenient for subsequent pressing. The transfer assembly then rotates the flipped stator sheet 6 out.

[0090] The transport assembly 41 has the same structure as the loading assembly in the loading structure 2. By fixing the leveling plate 212 at the bottom of the air plate 210, when sucking the stator sheet 6 in the inner glue coating plate 32, the leveling plate 212 is pressed down on the stator sheet 6 of the glue coating plate 32, and then the stator sheet 6 is sucked by the suction nozzle 211 on the air plate 210. The leveling plate 212 can ensure the horizontality of the stator sheet 6, and the avoidance hole 218 can avoid the glue point on the surface of the stator sheet 6 to avoid wiping off the glue. If only relying on the suction nozzle 211 for suction, due to the limited suction position during suction and transfer, height differences are likely to occur between the stator sheets 6, which will directly affect the subsequent assembly of the stator sheets 6.

[0091] The angle adjustment component adjusts the angle of the stator sheet 6. The purpose of the angle adjustment is to make each layer of stator sheets 6 have equal angle offset settings during the bonding process to form the stator, so that the plug-in positions of two adjacent layers of stator sheets 6 are staggered and bite together, avoiding the finished stator from falling apart at the plug-in point and improving the stability of the structure after the subsequent stator assembly.

[0092] The angle adjustment assembly includes an adjustment frame 42, a receiving plate 43, a first positioning block 44 and a first guide portion 25. The adjustment frame 42 is fixed on the machine platform and is located on one side of the conveying assembly 41. The receiving plate 43 is connected to the top of the adjustment frame 42 by a servo motor, and the conveying assembly 41 conveys the stator sheet 6 after the top surface is coated with glue to the receiving plate 43.

[0093] like Fig. 9As shown, it is a schematic diagram of the structure of the receiving plate 43, the first positioning block 44 is arranged on the top of the receiving plate 43, and the conveying assembly 41 conveys the stator sheet 6 after the top surface is coated with glue to the receiving plate 43. At the same time, the wire groove on the inner side of the stator sheet 6 is inserted into the first positioning block 44, and the stator sheet 6 is positioned by the first positioning block 44. When the receiving plate 43 rotates, it is prevented from excessively rotating the stator sheet 6 due to inertia, which causes the wire groove on the stator sheet 6 to be misaligned.

[0094] The first positioning portion 45 is obliquely disposed on the top of the first positioning block 44 to guide the stator sheet 6 when the stator sheet 6 is inserted, thereby facilitating the insertion of the stator sheet 6 .

[0095] By providing a rotating receiving plate 43, each stator sheet 6 placed thereon is rotated by an angle to ensure that the stator sheets 6 are mutually engaged after bonding, thereby improving the stability of the structure after subsequent bonding of the stator sheets 6 and preventing the stator sheets 6 from being broken apart due to force during use.

[0096] The rotation angle is set to x (x is the angle between two adjacent wire slots of the stator sheet 6, so that the wire slots of each layer of stator sheets 6 can be aligned only after rotating at this angle). The first layer of stator sheets 6 does not need to be rotated, the second layer of stator sheets 6 rotates by x angle, the third layer of stator sheets 6 rotates by 2x angle, and so on. The rotation angle of each layer of stator sheets 6 is (n-1)x, where x is the angle between two adjacent wire slots of the stator sheet 6, n is the number of layers corresponding to the stator sheet 6, and n is a positive integer. Each stator sheet 6 placed here is rotated by an angle to ensure that the stator sheets 6 bite each other after bonding, improve the stability of the structure after the subsequent stator sheets 6 are bonded, and prevent the stator sheets 6 from being forced and broken apart during use.

[0097] The flipping assembly is fixed on the machine table and is located on one side of the angle adjustment assembly. The transport assembly 41 absorbs the stator sheet 6 after the angle adjustment and then places it on the flipping assembly. The flipping assembly flips the stator sheet 6 180° in the vertical direction so that the glue-coated surface of the stator sheet 6 faces downward and the activator-soaked surface faces upward, which is convenient for subsequent press-fitting and bonding.

[0098] like Figure 7 As shown, the flip assembly includes a flip frame 46, a third lifting plate 47, a flip cylinder 48, a flip plate 49, a first clamping plate 410, a clamping groove 411, an adjustment plate 412 and an adjustment groove 413, and the flip frame 46 is fixed on the machine platform by screws.

[0099] The lifting slide is vertically fixed on one side of the flip frame 46, and the third lifting plate 47 is connected to the sliding part of the lifting slide, and the lifting slide drives the third lifting plate 47 to do lifting and lowering motion. The flip cylinder 48 is fixed on the side of the third lifting plate 47 away from the lifting slide, and the flip plate 49 is fixed on the rotating part of the flip cylinder 48. Through the cooperation of the lifting slide and the flip cylinder 48, the stator sheet 6 is turned over after gluing.

[0100] like Figure 7 As shown, there are two first clamping plates 410, which are fixed at intervals on the side of the flip plate 49 away from the flip cylinder 48, and a clamping groove 411 is formed between the two first clamping plates 410 for mounting the adjustment plate 412. The thickness of the adjustment plate 412 is equal to the height of the clamping groove 411, so after the adjustment plate 412 is inserted into the clamping groove 411 of the two first clamping plates 410, under the limiting effect of the upper and lower first clamping plates 410, the adjustment plate 412 will not shake in the vertical direction.

[0101] The adjustment groove 413 is in the shape of a rounded rectangle and passes through the first clamping plate 410. A fixing hole is opened on the adjustment plate 412. During actual fixation, a fastening nut will be used to complete the fixation of the adjustment plate 412. By setting the adjustment groove 413, the position of the adjustment plate 412 can be appropriately adjusted, so as to fine-tune the adjustment plate 412 and improve the position accuracy of the stator sheet 6 sucked here.

[0102] Suction mechanisms are fixed to the top and bottom of the adjustment plate 412, which are used to receive the stator sheet 6 after the angle adjustment when the conveying component 41 is transferred here, and drive the stator sheet 6 to flip 180° in the vertical direction, so that the glue-coated surface of the stator sheet 6 faces downward, which is convenient for subsequent press-fitting and bonding (the suction mechanism here is the same as the suction mechanism of the feeding assembly, that is, the suction mechanism is composed of an air plate 210, a suction nozzle 211, a leveling plate 212, an air hole 213 and an avoidance hole 218, etc.).

[0103] The transfer assembly is fixed on the machine table and is located below the flip assembly, and the stator sheet 6 with the glue-coated surface facing downward is transferred to the outside, such as Figure 8 As shown, the transfer assembly includes a transfer frame 414, a transfer plate 415, a transfer disc 416, a placement slot 417, a second positioning block 418 and a second positioning portion 419. The transfer frame 414 is fixed to the machine platform by screws, and the transfer plate 415 is fixed to the top of the transfer frame 414 by a rotating motor. The transfer plate 415 is driven to rotate by the rotating motor, thereby transferring the stator sheet 6 with the glue-coated surface facing downward to the outside.

[0104] There are two transfer plates 416, which are fixed at intervals on the top of the transfer plate 415. With the cooperation of the transfer plate 415, the efficiency of the transfer is improved. The placement groove 417 is annular and is opened on the top of the transfer plate 416. The flip assembly places the flipped stator sheet 6 on the transfer plate 416. The inner diameter of the placement groove 417 is larger than the inner diameter of the stator sheet 6, and the outer diameter of the placement groove 417 is smaller than the outer diameter of the stator sheet 6. Under the premise of satisfying the stator sheet 6 to bear, try to avoid contact with the lower surface of the stator sheet 6. Therefore, at this time, the stator sheet 6 is flipped by the flip assembly, the glue-coated surface is facing downward and the middle part is in a suspended state, so as to avoid wiping off the glue on the lower surface of the stator sheet 6 due to contact.

[0105] The second positioning block 418 is arranged around the top of the placement groove 417. The flipping assembly places the flipped stator sheet 6 on the turntable. At this time, the wire groove on the inner side of the stator sheet 6 is inserted into the second positioning block 418. The inserted stator sheet 6 is positioned by the second positioning block 418 to avoid positional displacement of the stator sheet 6 during transfer.

[0106] The second positioning portion 419 is obliquely provided on the top of the second positioning block 418 to guide the stator sheet 6 when the stator sheet 6 is inserted, thereby facilitating the insertion of the stator sheet 6 .

[0107] The transfer assembly turns the stator sheet 6 to the outside, and the handling assembly 41 transfers it to the press-fitting structure 5. The press-fitting structure 5 presses the stator sheets 6 placed there in turn, so that the activator layer and the glue layer of two adjacent layers of stator sheets 6 are in full contact, thereby forming a finished stator.

[0108] The press-fitting structure 5 includes a bearing component 51, a press-fitting component 52 and a blanking component 53, wherein the bearing component 51 is used to receive the stator sheet 6 transferred thereto by the conveying component 41, and the press-fitting component 52 presses the stator sheet 6 placed on the bearing component 51 in sequence. When the press-fitting thickness of the stator sheet 6 reaches the design requirement, the blanking component 53 clamps the press-fitted finished stator and transfers it to the subsequent conveyor belt for transportation to the subsequent assembly station.

[0109] like Fig.10 , 11 , which is a schematic diagram of the structure of the bearing assembly 51, the bearing assembly 51 is used to receive the stator sheet 6 transferred thereto by the transport assembly 41, and the bearing assembly 51 includes a bearing frame 510, a first lifting assembly, a second lifting assembly, a top plate 5113, a fixing plate 5114, a top column 5115, a tray 5116, a boss 5117, a second insertion rod 5118, a second guide portion 5119, an inner gauge 5120 and a first guide surface 5121. The bearing frame 510 is welded from aluminum profiles, and the bearing frame 510 is fixed on the assembly machine by screws, and mainly plays a supporting role.

[0110] The fixed plate 5114 is fixed to the top of the carrier frame 510 by screw fastening, and the inner gauge 5120 is fixed to the top of the fixed plate 5114, and is used to perform preliminary positioning of each stator sheet 6 clamped here, so as to avoid deviation in the placement of the stator sheet 6, which affects the subsequent press-fitting of the stator sheet 6, and also avoids the stator sheet 6 being placed crooked and causing damage to the machine (the outer diameter of the inner gauge 5120 is equal to the inner diameter of the stator sheet 6, so the function of the inner gauge 5120 is to position the inner wall of the stator sheet 6).

[0111] The first guide surface 5121 is obliquely opened at the top of the inner gauge 5120 , and guides the inner wall of the stator sheet 6 when the stator sheet 6 is placed, ensuring that the stator sheet 6 is easier to place on the inner gauge 5120 .

[0112] The second plugging rod 5118 is fixed on the top of the fixing plate 5114 and is arranged around the outside of the inner gauge 5120. The second plugging rod 5118 matches the shape of the wire slot of the stator sheet 6. When inserting the stator sheet 6, the inner wall of the stator sheet 6 is inserted on the inner gauge 5120, and the wire slot of the stator sheet 6 is inserted on the second plugging rod 5118. The second guide portion 5119 is obliquely provided on the top of the second plugging rod 5118 to guide the wire slot of the stator sheet 6, so as to ensure that the stator sheet 6 is more easily inserted on the plugging rod.

[0113] The tray 5116 is sleeved on the inner gauge 5120 and the top of the tray 5116 is integrally connected with a boss 5117. The tray 5116 and the boss 5117 are provided with grooves that match the second plug rod 5118, so as to avoid the position of the second plug rod 5118. The tray 5116 is not fixedly connected to the inner gauge 5120. The tray 5116 can move up and down along the inner gauge 5120 driven by the first jacking assembly and the second jacking assembly at the bottom. For each stator sheet 6 placed on the boss 5117, the first jacking assembly drives the tray 5116 to descend by the thickness of a stator sheet 6, ensuring that the press-fitting assembly 52 descends the same distance each time for press-fitting, thereby ensuring the consistency of the press-fitting bonding effect of each layer of stator sheets 6, and avoiding excessive press-fitting or inadequate press-fitting.

[0114] The top column 5115 is fixed at the bottom of the tray 5116 and passes through the fixed plate 5114 and the supporting frame 510. The top plate 5113 is fixed at the bottom of the top column 5115. The first lifting assembly and the second lifting assembly are connected to the top plate 5113 to drive the top plate 5113 to perform lifting movements, thereby driving the upper tray 5116 to perform lifting movements.

[0115] The first lifting assembly includes a guide plate 511, a first wear-resistant plate 512, a second wear-resistant plate 513, a main slide 514, a first bevel pin surface 515, a third wear-resistant plate 516, an auxiliary slide 517, a second bevel pin surface 518 and a fourth wear-resistant plate 519. When the transport assembly 41 places each stator sheet 6 on the boss 5117, the first lifting assembly drives the tray 5116 to descend a distance equal to the thickness of one stator sheet 6, ensuring that the press-fitting structure 5 descends the same distance each time for press-fitting, thereby ensuring the consistency of the press-fitting and bonding effects of each layer of stator sheets 6, avoiding excessive press-fitting or inadequate press-fitting.

[0116] There are two guide plates 511, which are fixed on the carrier 510 at intervals, and a guide groove is formed between the two guide plates 511 arranged at intervals, which linearly guides the sliding of the main slide plate 514 to prevent the main slide plate 514 from deviating during sliding, thereby affecting the lifting movement of the auxiliary slide plate 517. The first wear-resistant plate 512 is fixed on the carrier 510 and is located in the guide groove formed by the two guide plates 511.

[0117] The second wear-resistant plate 513 is fixed to the bottom of the main slide 514 and rests on the first wear-resistant plate 512. When the cylinder pushes the main slide 514 to move, the main slide 514 will drive the second wear-resistant plate 513 at the bottom to move synchronously. The second wear-resistant plate 513 is set in the guide groove formed by the two guide plates 511, and the width of the second wear-resistant plate 513 is equal to the distance between the two guide plates 511. The second wear-resistant plate 513 is guided by the guide plate 511, and then the sliding of the main slide 514 is linearly guided to prevent the main slide 514 from deviating when sliding, thereby affecting the lifting and lowering movement of the auxiliary slide 517.

[0118] By providing the first wear-resistant plate 512 and the second wear-resistant plate 513 that cooperate with each other, frequent friction can be avoided to cause wear of the main slide plate 514, and the accuracy of the lifting distance of the auxiliary slide plate 517 can be avoided. The main slide plate 514 is in the shape of a right triangle, and the second wear-resistant plate 513 is fixed on a right angle side of the main slide plate 514. The inclined surface of the main slide plate 514 is the first inclined pin surface 515.

[0119] The auxiliary slide 517 is fixed at the bottom of the top plate 5113. The auxiliary slide 517 is in the shape of a right triangle. One of the right-angled sides of the auxiliary slide 517 is fixed at the bottom of the top plate 5113. The inclined surface of the auxiliary slide 517 is the second inclined pin surface 518, and the second inclined pin surface 518 cooperates with the first inclined pin surface 515. Therefore, when the pushing cylinder pushes the main slide 514 to move, the main slide 514 will push the auxiliary slide 517 to perform lifting motion, thereby driving the upper top plate 5113 and the tray 5116 to perform lifting motion.

[0120] To prevent wear at the contact point between the main slide 514 and the auxiliary slide 517 , a third wear-resistant plate 516 is fixed to the first inclined pin surface 515 of the main slide 514 , and a fourth wear-resistant plate 519 is fixed to the second inclined pin surface 518 of the auxiliary slide 517 .

[0121] By setting the main slide plate 514 and the auxiliary slide plate 517 that cooperate with each other, the linear motion of the push cylinder is converted into a lifting motion, thereby avoiding the press-fitting action of the press-fitting assembly 52. ​​If the lifting cylinder is directly connected to the top plate 5113 to drive the top plate 5113 to do the lifting motion, then when the press-fitting assembly 52 presses the stator sheet 6 downward, the vertical downward pressure will directly act on the lifting cylinder. Frequent pressurization will damage the lifting cylinder, resulting in a decrease in its accuracy. At the same time, it will also cause the downward pressing distance to be inconsistent, which will also affect the qualified rate of the stator finished product.

[0122] By setting a main slide 514 and a sub-slide 517 that cooperate with each other, the linear motion of the pushing cylinder is converted into a lifting motion, so as to avoid the pressing action of the pressing component 52. The vertical pressure of the pressing component 52 acts downward on the main slide 514 and the sub-slide 517, and has less impact on the pushing cylinder on one side; and the main slide 514 is in contact with the support frame 510. During press-fitting, the bottom of the stator sheet 6 is a rigid support rather than an elastic support of the lifting cylinder. The rigid support has a better pressing effect, ensuring that the pressing component 52 descends the same distance for each press-fitting, thereby ensuring the consistency of the pressing and bonding effect of each layer of the stator sheet 6, and avoiding excessive pressing or inadequate pressing.

[0123] The second lifting mechanism includes a lifting cylinder 5110, a lifting plate 5111 and a connecting plate 5112. The lifting plate 5111 is slidably connected to the inner side of the carrier 510 through a slide rail and a slider, and abuts against the lower surface of the top plate 5113 (the lifting plate 5111 and the top plate 5113 are only abutted against each other, but not fixedly connected). The lifting cylinder 5110 is fixed to the outer side of the carrier 510, one side of the connecting plate 5112 is fixed to the bottom of the lifting plate 5111, and the other side of the connecting plate 5112 is connected to the piston rod of the lifting cylinder 5110. The lifting cylinder 5110 drives the connecting plate 5112 and the lifting plate 5111 to perform lifting movements, thereby driving the top plate 5113 to perform lifting movements.

[0124] When the press-fit thickness of the stator sheet 6 reaches the design requirement, the second jacking assembly assists the first jacking assembly to lift the stator, and the blanking assembly 53 clamps the press-fit finished stator and transfers it to the subsequent conveyor belt to be transported to the subsequent assembly station (because the stator is usually made up of hundreds of stator sheets 6 stacked and bonded together, its weight is relatively large, and the pushing cylinder is set horizontally at this time. If the stator is lifted only by the pushing cylinder, it is more difficult; and in order to ensure the accuracy of the pushing cylinder, the ejection speed should not be too high, so the second jacking assembly assists the first jacking assembly to lift the stator).

[0125] After the stator is ejected, the second jacking assembly is reset to its original position. At this time, the top plate 5113 is still under the control of the first jacking assembly to prevent the downward pressing action of the press-fitting assembly 52 from affecting the second jacking assembly.

[0126] The press-fitting assembly 52 is arranged above the bearing assembly 51 and is used to press-fit the stator sheets 6 placed on the bearing assembly 51 in sequence. Figure 12-14 As shown, the press assembly 52 includes a press frame 520, a press frame 521, a transition block 522, a transition groove 523, a through hole 524, a connecting rod 525, a contact block 526, a pressure sensor 527, a pressing plate 528, an outer gauge 529, a groove 5210, a second guide surface 5211, a press block 5212, a spring groove 5213, a spring 5214, a clamping groove 5215, a through groove 5216, a clamping plate 5217, a fixing column 5218, a slot 5219, a first avoidance groove 5220 and a second avoidance groove 5221. The press frame 520 is fixed on the assembly machine by screw fastening and is located above the bearing assembly 51.

[0127] The pressing frame 521 is slidably connected to one side of the pressing frame 520 through a slide rail and a slider. A downward pressing cylinder (the downward pressing cylinder is a commercially available single-acting cylinder) is fixed to the top of the pressing frame 520. The pressing frame 521 is driven down by the downward pressing cylinder to press-fit the stator sheets 6 placed on the supporting assembly 51 in turn.

[0128] like Fig.12 As shown, the transition block 522 is fixed on the top of the pressure frame 521, and the transition groove 523 is opened at the bottom of the transition block 522 to avoid the pressure sensor 527 on the top of the pressure frame 521. The through hole 524 passes through the transition block 522 and is connected to the transition groove 523. The through hole 524 and the transition block 522 are coaxially arranged.

[0129] The connecting rod 525 is connected to the piston rod of the downward pressing cylinder and passes through the through hole 524. The contact block 526 is fixed at the bottom of the connecting rod 525 and placed in the transition groove 523. The contact block 526 cooperates with the pressure sensor 527 below to ensure that the pressure of each downward pressing is the same, thereby ensuring the consistency of the press-fitting and bonding effect of each layer of stator sheets 6, avoiding excessive press-fitting or inadequate press-fitting.

[0130] The diameter of the contact block 526 is larger than the diameter of the through hole 524, so the contact block 526 will be stuck at the bottom of the through hole 524 to prevent the press frame 521 from falling. At the same time, relying on the cooperation of the contact block 526 and the pressure sensor 527, it can also ensure that the pressure of each pressing is the same, avoiding the situation of excessive pressing or inadequate pressing.

[0131] like Figure 12-14 As shown, the pressing plate 528 is fixed at the bottom of the pressing frame 521. As the pressing frame 521 rises and falls synchronously, the outer gauge 529 is fixed at the bottom of the pressing plate 528. The groove 5210 is provided on the inner side of the outer gauge 529 and is coaxially arranged with the outer gauge 529. The inner diameter of the outer gauge 529 is equal to the outer diameter of the stator sheet 6. Each stator sheet 6 is repositioned during press-fitting to avoid deviation in the placement of the stator sheet 6, which affects the subsequent press-fitting of the stator sheet 6. At the same time, it can also avoid the stator sheet 6 being placed crookedly and causing damage to the machine (the inner diameter of the outer gauge 529 is equal to the outer diameter of the stator sheet 6, so the function of the outer gauge 529 is to position the outer wall of the stator sheet 6).

[0132] The second guide surface 5211 is obliquely opened on the inner side of the bottom of the outer gauge 529 , and guides the outer side wall of the stator sheet 6 when the stator sheet 6 is pressed downward, ensuring that the stator sheet 6 can enter the outer gauge 529 more easily.

[0133] The pressing block 5212 is elastically arranged at the bottom of the pressing plate 528 and the outer wall of the pressing block 5212 abuts against the inner wall of the outer gauge 529. When the pressing block 5212 elastically presses the stator sheet 6 downward, the movement of the pressing block 5212 is guided by the outer gauge 529, thereby improving the effect of the press-fitting of the stator sheet 6. Fig.12 , 13 As shown, the thickness of the pressing block 5212 is smaller than the thickness of the outer gauge 529 , ensuring that the outer gauge 529 satisfies both the elastic guidance of the pressing block 5212 and the positioning of the outer side wall of the stator sheet 6 .

[0134] The slot 5219 is arranged at the bottom of the pressing block 5212 and corresponds one-to-one with the position of the second insertion rod 5118 of the supporting assembly 51. When the pressing block 5212 moves downward to press the stator sheet 6, the second insertion rod 5118 will be inserted into the slot 5219. Relying on the cooperation between the second insertion rod 5118 and the slot 5219, the movement of the pressing block 5212 can be guided and the pressing effect of the stator sheet 6 can be improved.

[0135] like Fig.12 As shown, the card slot 5215 is opened at the top of the pressure plate 528, and the through slot 5216 is opened at the bottom of the card slot 5215 and passes through the pressure plate 528. The diameter of the card slot 5215 is larger than the diameter of the through slot 5216, so a shoulder structure is formed at the connection between the card slot 5215 and the through slot 5216 for clamping the card plate 5217.

[0136] The fixing column 5218 is fixed on the top of the pressing block 5212 and passes through the through slot 5216. The clamping plate 5217 is fixed on the top of the fixing column 5218 and placed in the clamping slot 5215. The diameter of the clamping plate 5217 is larger than the diameter of the fixing column 5218. Therefore, when not pressed, the clamping plate 5217 abuts against the lower surface of the clamping slot 5215. At this time, there is a gap between the pressing block 5212 and the pressing plate 528. Since the clamping plate 5217 is stuck at the shoulder between the clamping slot 5215 and the through slot 5216, the pressing block 5212 will not fall off. When pressed, the pressing plate 528 moves downward to press the uppermost stator sheet 6. At this time, the pressing block 5212 rises to fit with the pressing plate 528.

[0137] The spring slot 5213 is provided at the bottom of the pressure plate 528, and the spring 5214 is arranged in the spring slot 5213 and abuts against the upper surface of the pressure block 5212. Therefore, when not pressed, the clamping plate 5217 abuts against the lower surface of the clamping slot 5215, and at this time there is a gap between the pressure block 5212 and the pressure plate 528. Since the clamping plate 5217 is clamped at the shoulder between the clamping slot 5215 and the through slot 5216, the pressure block 5212 will not fall, and the spring 5214 is in an open state; during press-fitting, the pressure plate 528 moves downward to press against the uppermost stator sheet 6, and at this time the pressure block 5212 rises to fit with the pressure plate 528, and at this time the spring 5214 is in a compressed state, and the spring 5214 is used to realize the elastic press-fitting of the pressure block 5212, so as to avoid the rigid press-fitting from damaging the stator sheet 6 (the press-fitting of the stator sheet 6 is a bottom rigid support and a top elastic press-fitting).

[0138] The spring 5214 here can not only play the role of elastic pressing to avoid the damage of the stator sheet 6 by rigid pressing, but also has the more important role of material discharge: because during pressing, the pressing block 5212 will be pressed and contacted with the uppermost stator sheet 6. When the pressing block 5212 is reset after pressing, it is easy to lift up the uppermost stator sheet 6 again. Therefore, the reset movement of the spring 5214 drives the pressing block 5212 to reset, thereby assisting the discharge of the uppermost stator sheet 6.

[0139] The first avoidance groove 5220 penetrates the pressing block 5212 , and the second avoidance groove 5221 penetrates the pressing plate 528 and is coaxially matched with the first avoidance groove 5220 , so as to avoid the position of the inner gauge 5120 and the occurrence of interference when the stator sheet 6 is pressed.

[0140] When the stator sheet 6 is pressed to a thickness that meets the design requirements, the blanking assembly 53 clamps the pressed finished stator and transfers it to the subsequent conveyor belt to be transported to the subsequent assembly station. Fig.15 As shown, the blanking assembly 53 includes a first movable plate 530, a second movable plate 531, a transport frame 532, an angle plate 533 and a clamping mechanism. The first movable plate 530 is slidably connected to the top of the assembly machine through a slide rail and a slider, and the second movable plate 531 is slidably connected to the top of the first movable plate 530 through a slide rail and a slider (the first movable plate 530 and the second movable plate 531 are both driven by a linear cylinder, and the moving directions of the first movable plate 530 and the second movable plate 531 are perpendicular to each other).

[0141] The transport frame 532 is fixed on the top of the second movable plate 531, and the angle plate 533 is slidably connected to the side of the transport frame 532 close to the carrier frame 510. The clamping assembly is fixed on the angle plate 533 to clamp the press-fitted finished stator and transfer it to the subsequent conveyor belt to be transported to the subsequent assembly station, such as Fig.15 As shown, the clamping mechanism includes a finger cylinder 534 , a second clamping plate 535 , an avoidance arc 536 and a clamping block 537 .

[0142] The finger cylinder 534 is fixed on the angle plate 533. The second clamping plate 535 has two pieces, which are fixed on the finger cylinder 534 respectively. The second clamping plate 535 is driven by the finger cylinder 534 to move inward, thereby completing the clamping work of the finished stator. The clamping block 537 is fixed on the inner side of the second clamping plate 535. When the second clamping plate 535 moves inward, the clamping block 537 clamps the finished stator on the tray 5116.

[0143] The material of the clamp block 537 is rubber, which can avoid scratching the side wall of the stator when clamping the stator. An avoidance arc 536 is provided on the inner side of the clamp block 537. Because the finished stator is made of multiple stator sheets 6 stacked and bonded together, it is cylindrical, so the avoidance arc 536 is used to avoid the structure in the diameter direction of the finished stator, so as to facilitate the clamping of the clamp block 537.

[0144] The working steps of the stator assembly production line of the present invention are as follows:

[0145] The operator inserts the stator sheet 6 on the feeding structure 2, and the feeding structure 2 clamps the uppermost stator sheet 6 and treats the bottom surface of the stator sheet 6 with an activator, and then transfers it to the glue coating structure 3; the glue coating structure 3 treats the top surface of the stator sheet 6 with the activator on the bottom surface, and then transfers it to the adjustment structure 4;

[0146] The adjustment structure 4 performs angle adjustment and flipping processing on each stator sheet 6 placed there. The angle adjustment processing is to make each layer of stator sheets 6 have equal angle staggered settings during the process of bonding to form the stator, so that the plug-in positions of two adjacent layers of stator sheets 6 are staggered and bite together, avoiding the finished stator from falling apart at the plug-in position, and improving the stability of the structure after the subsequent stator assembly. The flipping processing is to flip the stator sheet 6 180° in the vertical direction, so that the glue-coated surface of the stator sheet 6 faces downward and the activator-soaked surface faces upward, which is convenient for subsequent press-fitting.

[0147] After adjusting the stator sheets 6, the adjustment structure 4 is transferred to the press-fitting structure 5, which presses the stator sheets 6 placed therein in turn, so that the activator layer and the glue layer of two adjacent layers of stator sheets 6 are in full contact, thereby forming a finished stator, and finally transferred to the subsequent process.

[0148] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A stator assembly production line, wherein the stator is formed by stacking and bonding stator sheets (6), characterized in that , which includes: Rack (1); A loading structure (2), the loading structure (2) comprising a loading turntable (21) rotatably arranged on the top of a frame (1), a support assembly arranged around the top of the loading turntable (21), an infusion tray (220) fixed to the top of the frame (1) and located on one side of the loading turntable (21), and a loading assembly mounted on the top of the support assembly and the infusion tray (220), the stator sheets (6) being stacked on the support assembly, the loading assembly sucking the single stator sheet (6) on the top layer of the support assembly and placing it in the infusion tray (220); A glue coating structure (3), the glue coating structure (3) comprising a glue coating turntable (31) rotatably arranged on the top of the frame (1), a glue coating disk (32) arranged around the top of the glue coating turntable (31), and a glue coating component arranged outside the glue coating turntable (31), the loading component sucking the stator sheet (6) in the infusion disk (220) and placing it on the glue coating disk (32), and the glue coating component coating the upper surface of the stator sheet (6) with glue; An adjustment structure (4), the adjustment structure (4) comprising an angle adjustment component and a flip component fixed on the top of the frame (1), a transport component (41) mounted above the glue coating disc (32) and the angle adjustment component, and a transfer component arranged below the flip component, the transport component (41) sucking the stator sheet (6) in the glue coating disc (32) and placing it on the angle adjustment component, or sucking the stator sheet (6) on the angle adjustment component and placing it on the flip component, the adjustment angles of the angle adjustment component being equidistantly distributed; the flip component flips the stator sheet (6) so that its glue coating surface faces downward and its infusion surface faces upward, and places it on the transfer component; A press-fit structure (5), the press-fit structure (5) comprising a bearing assembly (51) and a press-fit assembly (52); The bearing assembly (51) comprises a bearing frame (510), an inner gauge (5120) fixed on the top of the bearing frame (510), a tray (5116) which is raised and lowered on the inner gauge (5120), and a second insertion rod (5118) which is arranged around the top of the bearing frame (510) and passes through the tray (5116); the transport assembly (41) absorbs the stator sheet (6) on the transfer assembly and places it on the tray (5116); the inner gauge (5120) is used to limit the inner side wall of the stator sheet (6); The press-fitting assembly (52) comprises a press-fitting frame (520) mounted above the carrier frame (510), a press-fitting frame (521) arranged at the bottom of the press-fitting frame (520) in a liftable manner, a press plate (528) fixed at the bottom of the press plate (521), an outer gauge (529) fixed at the bottom of the press plate (528), a press block (5212) elastically arranged at the bottom of the press plate (528) and abutting against the inner side wall of the outer gauge (529), and a slot (5219) arranged around the bottom of the press block (5212); When the pressing frame (521) descends, the pressing block (5212) presses against the upper surface of the stator sheet (6), the slot (5219) is used to limit the second insertion rod (5118), and the outer gauge (529) is used to limit the outer side wall of the stator sheet (6).

2. A stator assembly production line according to claim 1, characterized in that: The support assembly comprises an outer fixed plate (22) fixed on the top of the loading turntable (21), a first insertion rod (24) arranged around the top of the outer fixed plate (22), a first guide portion (25) arranged obliquely on the top of the first insertion rod (24), and an inner lifting plate (23) liftably sleeved on the first insertion rod (24), and the stator sheet (6) is inserted on the first insertion rod (24).

3. A stator assembly production line according to claim 2, characterized in that: The loading assembly comprises a loading rack (26), a loading plate (27) movably arranged on one side of the loading rack (26), a first lifting plate (28) movably arranged on one side of the loading plate (27), an air plate (210) fixed at the bottom of the first lifting plate (28), a leveling plate (212) fixed at the bottom of the air plate (210), a suction nozzle (211) arranged around the top of the air plate (210), and an air hole (213) and an avoidance hole (218) penetrating the leveling plate (212); the suction nozzle (211) is arranged in the air hole (213) and is used to suck the single stator sheet (6) on the uppermost layer of the inner lifting plate (23).

4. A stator assembly production line according to claim 3, characterized in that: The loading structure (2) further comprises a second lifting plate (214) which is liftably arranged at the bottom of the loading frame (26), a partition plate (215) fixed at the bottom of the second lifting plate (214), a partition air block (216) arranged around the inner side wall of the partition air block (215), and an air groove (217) provided on the inner side of the partition air block (216), wherein the partition air block (216) is used to separate the first layer of stator sheets (6) and the second layer of stator sheets (6) at the top of the inner lifting plate (23).

5. The stator assembly production line according to claim 1, characterized in that: The angle adjustment component comprises an adjustment frame (42) fixed on the top of the frame (1), a receiving plate (43) rotatably mounted on the top of the adjustment frame (42), a first positioning block (44) arranged around the top of the receiving plate (43), and a first positioning portion (45) obliquely opened on the top of the first positioning block (44); the transport component (41) absorbs the stator sheet (6) in the glue coating plate (32) and places it on the receiving plate (43).

6. A stator assembly production line according to claim 5, characterized in that: The flip assembly comprises a flip frame (46) fixed on the top of the frame (1), a third lifting plate (47) movably arranged on one side of the flip frame (46), a flip plate (49) rotatably mounted on the side of the third lifting plate (47) away from the flip frame (46), an adjustment plate (412) adjustably arranged on one side of the flip plate (49), and a suction mechanism fixed on both sides of the adjustment plate (412); the transport assembly (41) sucks the stator sheet (6) in the receiving tray (43) and places it on the suction mechanism; the flip assembly flips the stator sheet (6) so that its glue-coated surface faces downward and its impregnated surface faces upward.

7. The stator assembly production line according to claim 1, characterized in that: The transfer assembly comprises a transfer frame (414) fixed on the top of the frame (1), a transfer plate (415) rotatably mounted on the top of the transfer frame (414), a transfer disc (416) fixed at intervals on the top of the transfer plate (415), and a placement groove (417) provided on the top of the transfer disc (416), wherein the inner diameter of the placement groove (417) is larger than the inner diameter of the stator sheet (6), and the outer diameter of the placement groove (417) is smaller than the outer diameter of the stator sheet (6), and the flipping assembly places the flipped stator sheet (6) on the transfer disc (416).

8. The stator assembly production line according to claim 1, characterized in that: The bearing assembly (51) also includes a main slide (514) slidably connected to the bearing frame (510), a first inclined pin surface (515) obliquely opened at the top of the main slide (514), an auxiliary slide (517) arranged at the top of the main slide (514), a second inclined pin surface (518) obliquely opened at the bottom of the auxiliary slide (517) and matched with the first inclined pin surface (515), a top plate (5113) fixed on the top of the auxiliary slide (517), and a top column (5115) ring-arranged on the top of the top plate (5113) and fixed to the tray (5116).

9. The stator assembly production line according to claim 1, characterized in that: The press-fitting assembly (52) further comprises a transition block (522) fixed on the top of a press frame (521), a transition groove (523) provided at the bottom of the transition block (522), a through hole (524) coaxially penetrating the transition block (522) and communicating with the transition groove (523), a pressure sensor (527) fixed on the top of the press frame (521) and located in the transition groove (523), a connecting rod (525) movably penetrating the through hole (524), and a contact block (526) fixed at the bottom of the connecting rod (525) and cooperating with the pressure sensor (527), wherein the diameter of the contact block (526) is greater than the diameter of the through hole (524).

10. A stator assembly method, using the stator assembly production line according to any one of claims 1 to 9, characterized in that: It includes the following steps: S1, stacking the stator sheets on a support assembly; S2, the loading assembly sucks the single stator sheet on the uppermost layer of the support assembly each time, and immerses the bottom surface of the stator sheet in an activator; S3, the glue coating structure performs glue coating on the top surface of the stator sheet in S2; S4, the angle adjustment component adjusts the angle of the stator sheet in S3, and the adjustment angles of the angle adjustment component are equidistantly distributed; S5, the turning assembly turns over the stator sheet in S4, so that the glue-coated surface of the stator sheet faces downward and the activator-soaked surface faces upward; S6, placing the stator sheets turned over in S5 on the bearing assembly in sequence; S7. The press-fitting assembly sequentially presses the stator sheets on the bearing assembly to form a stator.

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