Automatic processing device and production line for multi-size stator silicon steel sheets

Abstract

The present application relates to the technical field of stator processing, and provides a multi-size stator silicon steel sheet automatic clamping processing device and production line, which comprises a plurality of stator clamping machines and a rotary lifting platform arranged oppositely upward and downward; the plurality of stator clamping machines are arranged centripetally, a main body frame is slidingly arranged on a guide plate and is driven to reciprocate by a clamping driving device to complete a clamping action; a top forming shell with adjustable height is arranged at a clamping end of the main body frame; the rotary lifting platform comprises a rotary table, a plurality of lifting devices and a plurality of variable-diameter inner connection devices, and the variable-diameter inner connection devices are fixedly arranged on the lifting devices; the variable-diameter inner connection devices enable a sector outer connection plate to slide outward and abut against an inner wall of a stator. The present application has the beneficial effect of realizing full-automatic and high-adaptability clamping processing of various sizes of stators. Two sets of coordinated adjustment systems are used to realize the adaptation to various sizes of stators.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stator processing, in particular to a multi-size stator silicon steel sheet automatic clamping processing device and production line. BACKGROUND

[0002] Under the background of rapid development of the field of ships, engineering machinery and the like, the traditional shaft-mounted generator generally has problems of large size, low efficiency, poor adaptability and the like, not only increases the energy consumption in the operation process of the equipment, but also limits the flexible application of the equipment in complex scenes, and cannot meet the current demand of the industry for high-efficiency energy equipment. The permanent magnet shaft-mounted generator, with the outstanding advantages of high power density, high power generation efficiency and miniaturization, becomes the core direction to replace the traditional shaft-mounted generator, can effectively solve the short board of the traditional product, and meets the development demand of the field of ships, engineering machinery and the like.

[0003] Therefore, the project named "Development and Industrialization of Permanent Magnet Shaft-mounted Generator" (which has been recorded in the Shandong Provincial Science and Technology Department) led by our school (Qilu University of Technology) and Dezhou Hengli Motor Co., Ltd., jointly with Shandong University and Harbin Engineering University, focuses on the core demand of the current market for permanent magnet shaft-mounted generators, such as "multi-specification adaptation, low-cost mass production and high reliability", carries out core technology research and development and industrialization landing work, and promotes the upgrading of related supporting manufacturing technologies of permanent magnet shaft-mounted generators.

[0004] In the development and industrialization of permanent magnet shaft-mounted generator, the stator core, as the core component of energy conversion of the permanent magnet shaft-mounted generator, its manufacturing quality directly determines the efficiency, noise and service life of the motor. The stator core is usually composed of hundreds of ultra-thin silicon steel sheets which are precisely laminated, clamped and fixed, and the clamping process is the key link to ensure the integrity and structural stiffness of the core. The process aims to apply radial locking force to the clamping groove of the outer edge of the laminated silicon steel sheet through the metal clamping sheet, to prevent the inter-sheet loosening or deformation under the action of electromagnetic force and vibration.

[0005] The clamping technology widely used in the industry at present mainly depends on two traditional modes: pure manual operation and mechanical auxiliary semi-automatic equipment. In the pure manual mode, the operator knocks the strip-shaped clamping sheet into the clamping groove of the outer circle of the stator with a hammer. This way not only has low efficiency, but also easily causes local deformation of the clamping sheet, poor fit with the groove wall, and even damage to the insulation coating of the silicon steel sheet, thereby increasing the iron loss and reducing the electromagnetic performance. To solve this problem, special clamping machines appear in the market, such as the motor stator clamping machine disclosed in patent CN202120179372.1, which uses a cylinder to drive a side pressing plate for radial pressing, realizing the automation of the clamping action. Another patent CN202410253326.9 improves the positioning accuracy and efficiency of pressing and clamping by setting a positioning and tensioning mechanism and a clamping ring.

[0006] However, these prior art devices still have obvious adaptability defects when facing the flexible production demand of multiple models and small batches. They are usually designed for a specific specification of stator core, and when the outer diameter, thickness or buckle slot size changes, the whole set of mold or positioning parts often need to be replaced, and even mechanical structure adjustment is needed. This process takes a long time and requires high technical level of operators, which seriously restricts the rapid change of production line and continuous production capacity. In addition, the traditional production line layout disperses the processes of feeding, forming, cutting, buckling and pressing in independent workstations, and the material transfer and connection are carried out manually, which not only occupies a large space, but also becomes the bottleneck of the efficiency and stability of the whole line. SUMMARY

[0007] The present application solves the adaptability problem of the prior art stator silicon steel sheet buckle processing device when facing the flexible production demand of multiple models and small batches.

[0008] The present application provides a multi-size stator silicon steel sheet automatic buckle processing device, comprising a plurality of stator buckle machines and a rotating lifting platform arranged oppositely above and below.

[0009] The plurality of stator buckle machines are arranged centripetally, the main body frame is slidingly arranged on the guide plate and driven to reciprocate by the buckle driving device to complete the buckle action; the buckle end of the main body frame is provided with an adjustable height top forming shell, the top forming shell is slidingly arranged on the end plate of the main body frame, the inner side of the end plate is provided with a rack, the inner side of the top forming shell is provided with a staggered shaft helical gear meshing with the rack, and the staggered shaft helical gear drives the top forming shell to move up and down.

[0010] The rotating lifting platform comprises a rotating table, a plurality of lifting devices and a plurality of variable diameter inner connection devices, and the variable diameter inner connection devices are fixedly arranged on the lifting devices; the variable diameter inner connection device comprises an inner connection device base with a plurality of centripetal T-shaped tracks opened in the circumferential direction, a plurality of fan-shaped outer connection plates arranged in the centripetal tracks and an adjusting gear with a plurality of centripetal circular arc grooves opened; the fan-shaped outer connection plate is provided with a guide column above to cooperate with the centripetal circular arc groove, the adjusting gear is provided with a motor to drive rotation, the guide column slides in the centripetal circular arc groove, and then the fan-shaped outer connection plate slides outward to abut against the inner wall of the stator.

[0011] As a preferred scheme, it further comprises an overall support, which comprises a C-shaped support below and a four-column support above, the rotating lifting platform is arranged in the C-shaped support, the stator buckle machine is arranged above the C-shaped support, a plurality of steel belt cutting devices are fixedly arranged at the lower end of the top plate of the four-column support, the steel belt cutting device cooperates with the stator buckle machine, a steel belt pinch roller is arranged at the top end of the four-column support and a through hole is opened to convey the steel belt to the steel belt cutting device processing position, and the steel belt cutting device is provided with a steel belt guide rail to align the steel belt with the buckle processing position.

[0012] As a preferred scheme, the buckle driving device comprises a motor-driven rotating rod and a connecting rod, the connecting rod is hingedly connected with the rotating rod and the main body frame at two ends respectively, the rotating rod drives the connecting rod to drive the main body frame to move along the set direction of the guide plate, forming a crank slider structure.

[0013] As a preferred scheme, the rotating table is fixedly connected with a rotating shaft of the rotating base, and the rotating shaft is driven to rotate by a rotating motor.

[0014] As a preferred scheme, the lifting device comprises a fixing frame fixedly connected with a variable-diameter internal connection device, a plurality of lead screws rotatably arranged on the fixing frame, and a base provided with a plurality of screw holes, the upper end of the lead screw is driven by a motor and a gear set, and the lower end is matched with the screw holes, and the base is fixedly connected with the rotating table.

[0015] As a preferred scheme, the four-column support is fixedly connected with a plurality of steel belt cutting devices, the upper end of the lifting table is fixedly connected with a hydraulic cylinder, and the hydraulic cylinder is fixedly arranged at the upper end of the four-column support.

[0016] A production line using the multi-size stator silicon steel sheet automatic buckle processing device is also provided, comprising a first conveying belt, a gantry jaw mechanism, a stator sheet coding machine, the multi-size stator silicon steel sheet automatic buckle processing device and a second conveying belt, the gantry jaw mechanism is connected with the end of the first conveying belt and the starting end of the second conveying belt, the multi-size stator silicon steel sheet automatic buckle processing device is arranged in the middle of the gantry jaw mechanism, and the stator sheet coding machine is arranged at the end of the first conveying belt.

[0017] As a preferred scheme, the gantry jaw mechanism comprises a gantry and a jaw, the gantry is provided with guide rails to adapt to the jaw, so that the jaw moves transversely on the gantry, the jaw is provided with a cylinder to control the lifting of the jaw, and the jaw is provided with a motor to drive the opening and closing of the jaw.

[0018] As a preferred scheme, the stator sheet coding machine is provided with a fifth motor, a rotating round head, a fixed cylinder, a first circular table base and a limiting plate, the fifth motor is fixed to the coding machine base, the rotating round head is matched with the fixed cylinder, the fixed cylinder is connected with the fifth motor, and the first circular table base and the limiting plate are both welded to the coding machine base.

[0019] The present application has the following beneficial effects:

[0020] 1. The application realizes full-automatic and high adaptability of stator lamination processing of various sizes. Two sets of coordinated adjustment systems are used to adapt to various sizes of stators. One is a plurality of stator lamination machines arranged centripetally, which can precisely drive the top shaped shell to move up and down through the staggered shaft helical gear and rack mechanism at the end, thereby flexibly adjusting the working height of the lamination machine to adapt to different thicknesses of the stator core. The second is the variable diameter inner connection device in the rotary lifting platform, which can accurately tighten and position the cores of different inner diameter specifications from the inner circle of the stator by driving the adjusting gear through the motor, synchronously expanding and contracting the fan-shaped outer plate in the centripetal T-shaped track. Through the combined adjustment capability of external height adjustment and internal diameter adjustment, the same equipment can quickly adapt to a wide range of stator models, greatly improving the versatility and production capacity utilization of the equipment, and solving the pain point that traditional special machines can only correspond to a single specification.

[0021] 2. The application forms a complete intelligent manufacturing unit through the highly flexible size self-adaptive design, precise and reliable automatic execution mechanism and seamless integration of the whole process production line. The whole process does not need manual intervention, realizes full-automatic production from scattered sheets to finished products, not only improves the production efficiency by several times, but also completely eliminates the quality fluctuations caused by human operation through the accuracy of the machine, ensuring that the lamination quality of each stator core is stable and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to make the content of the application easier to be clearly understood, the application will be further described in detail below according to specific embodiments and in conjunction with the drawings, in which

[0023] Figure 1 It is a structural schematic diagram of embodiment 1 of the application.

[0024] Figure 2 It is a structural schematic diagram of the stator lamination machine of embodiment 1.

[0025] Figure 3 It is a structural schematic diagram of the variable diameter inner connection device of embodiment 1.

[0026] Figure 4 It is a structural schematic diagram of the rotary lifting platform of embodiment 1.

[0027] Figure 5 It is a structural schematic diagram of embodiment 2 of the application.

[0028] Figure 6 It is a structural schematic diagram of the stator lamination machine of embodiment 2.

[0029] Figure 7 It is a structural schematic diagram of the gantry jaw mechanism of embodiment 2.

[0030] In the drawings, the reference signs are:

[0031] 1. First conveyor belt; 2. Gantry jaw mechanism; 21. Air cylinder; 22. Jaw; 29. Gantry; 211. Guide rail; 226. Finger; 3. Stator chipper; 31. Rotating round head; 32. Fixed cylinder; 33. First circular table base; 34. Fifth motor; 35. Chipper base; 36. Limiting plate; 4. Rotating lifting platform; 42. Variable-diameter inner connecting device; 47. Base; 48. Screw rod; 413. Rotating motor; 415. Inner connecting device base; 416. Fan-shaped outer connecting plate; 417. Guide column; 418. Lifting device; 423. Rotating base; 424. Rotating table; 425. Adjusting gear; 5. Stator chipper; 51. Hydraulic cylinder; 52. Four-column support; 55. C-shaped support; 59. Steel belt pinch roller; 526. Lifting platform; 544. Steel belt cutting device; 548. Rotating rod; 549. Chip driving device; 551. Connecting rod; 556. Guide plate; 557. Main body frame; 558. Rack; 559. End plate; 561. Interlaced shaft helical gear; 562. Top forming shell; 6. Second conveyor belt. DETAILED DESCRIPTION

[0032] To illustrate the features of the present application, the present application will be further described below in conjunction with the drawings and examples.

[0033] Example 1:

[0034] Please refer to Figures 1 to 4 The embodiment of the present application provides a multi-size stator silicon steel sheet automatic chip processing device, which comprises a whole support, a rotating lifting platform 4 and four stator chipper machines 5. The whole support is composed of a C-shaped support 55 at the bottom and a four-column support 52 at the top. The rotating lifting platform 4 is arranged inside the C-shaped support 55, and the four stator chipper machines 5 are arranged centripetally above the C-shaped support 55. A through hole with a diameter of 600 mm is formed at the center of each stator chipper machine 5.

[0035] The rotating lifting platform 4 comprises a rotating table 424, four lifting devices 418 and four variable-diameter inner connecting devices 42. The rotating table 424 is provided with a rotating base 423 at the bottom, and the rotating table 424 is fixedly connected to the rotating shaft of the rotating base 423, which is driven by a rotating motor 413 with a power of 5.5 kW. The diameter of the rotating table 424 is 1200 mm.

[0036] Each lifting device 418 comprises a fixing frame 412 fixedly connected to the variable-diameter inner connecting device 42, three screw rods 48 and a base 47. The upper end of the screw rod 48 is provided with a motor and gear set 411 for driving, and the lower end is matched with the screw hole of the base 47. The diameter of the screw rod 48 is 50 mm, and the lifting stroke is 400 mm. The base 47 is fixedly connected to the rotating table 424.

[0037] The variable-diameter inner fitting device 42 is fixedly arranged on the lifting device 418, and includes an inner fitting device base 415, four fan-shaped outer fitting plates 416, and an adjusting gear 425. The inner fitting device base 415 is circumferentially provided with four centripetal T-shaped tracks. The adjusting gear 425 is provided with four centripetal arc grooves, and is driven to rotate by a power motor of 3 kw. The fan-shaped outer fitting plates 416 are provided with guide columns 417 above and are matched with the centripetal arc grooves, and the adjusting gear 425 drives the guide columns 417 to slide in the centripetal arc grooves, so that the fan-shaped outer fitting plates 416 slide outward to abut against the inner wall of the stator, and the stator with a diameter of 300 to 600 mm is adapted.

[0038] The main rack 557 of the stator buckle machine 5 is slidingly arranged on the guide plate 556. The buckle driving device 549 includes a motor-driven rotating rod 548 and a connecting rod 551, forming a crank slider structure. The buckle end of the main rack 557 is provided with an adjustable height top forming shell 562, which is slidingly arranged on the end plate 559 of the main rack 557. The inner side of the end plate 559 is provided with a rack 558, and the inner side of the top forming shell 562 is provided with a staggered shaft helical gear 561 meshing with the rack 558, achieving a height adjustment range of 50 mm.

[0039] The four-column support 52 is provided with four steel belt cutting devices 544 at the lower end of the top plate. The steel belt clamping and feeding roller 59 is arranged at the top end of the four-column support 52, and the steel belt is conveyed to the buckle processing position through the steel belt guide rail 524 of the steel belt cutting device 544. The lifting platform 526 is fixedly connected with the four steel belt cutting devices 544, and the upper end is connected with the hydraulic cylinder 51, achieving a lifting stroke of 200 mm.

[0040] The device realizes automatic flow between the processing position and the conveying position of the stator through the rotating lifting platform 4, adapts to different sizes of the stator by using the variable-diameter inner fitting device 42, and completes the automatic buckle operation by cooperating with the adjustable height stator buckle machine 5, thereby effectively improving the production efficiency and product adaptability.

[0041] Embodiment 2:

[0042] Please refer to Figures 5 to 7 The embodiment of the present application provides a production line using the multi-size stator silicon steel sheet automatic buckle processing device provided in embodiment 1, which comprises a first conveying belt 1, a gantry clamping jaw mechanism 2, a stator sheet stacking machine 3, a multi-size stator silicon steel sheet automatic buckle processing device, and a second conveying belt 6. The first conveying belt 1 has a width of 800 mm and a conveying speed of 5 m / min. The second conveying belt 6 has the same specifications as the first conveying belt 1, and the distance between the two is 3 m.

[0043] The gantry clamping jaw mechanism 2 is bridged between the end of the first conveying belt 1 and the start of the second conveying belt 6, and comprises a gantry 29 and a clamping jaw 22. The gantry 29 has a height of 2.5 meters and a span of 4 meters, and is provided with a guide rail 211. The clamping jaw 22 is driven to move laterally on the guide rail 211 by a servo motor, and has a positioning accuracy of 0.1 millimeter. The clamping jaw 22 is provided with a cylinder 21 to control lifting, and has a lifting stroke of 400 millimeters. The clamping fingers 226 are driven to open and close by a motor, and the clamping force can be adjusted within a range of 50-200 Newton.

[0044] The stator chipper 3 is arranged at the end of the first conveying belt 1, and comprises a fifth motor 34, a rotating round head 31, a fixed cylinder 32, a first circular table base 33, and a limiting plate 36. The fifth motor 34 has a power of 1.5 kilowatts, and is fixed to a chipper base 35. The rotating round head 31 cooperates with the fixed cylinder 32, and has a rotating speed of 10 revolutions per minute. The first circular table base 33 has a diameter of 400 millimeters, and is welded to the chipper base 35 together with the limiting plate 36. The limiting plate 36 is adjustable in height, and has an adjustment range of 200 millimeters.

[0045] The multi-size stator silicon steel sheet automatic chip handling device is arranged in the middle working area of the gantry clamping jaw mechanism 2. The device comprises four variable-diameter internal connection devices 42 and four stator chipper machines 5, and can handle stator cores with diameters of 300-600 millimeters. The rotating table 424 of the rotating lifting table 4 is driven by a 5.5 kilowatt motor to realize accurate indexing of four workstations.

[0046] During operation, the stator is conveyed to the stator chipper 3 by the first conveying belt 1, and automatic stacking of the stator core is completed. The gantry clamping jaw mechanism 2 transfers the stacked stator core to the multi-size stator silicon steel sheet automatic chip handling device for chip operation. After the chip operation is completed, the finished product is transferred to the second conveying belt 6 by the gantry clamping jaw mechanism 2 for output. The whole production line has a beat of 90 seconds per piece, and realizes fully automatic production of the stator core from chip to chip.

[0047] The above embodiments and drawings are only used to illustrate the technical solutions of the present application, and are not a limitation of the present application. The present application has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the essential scope of the present application do not deviate from the purpose of the present application, and should also belong to the protection scope of the claims of the present application. Other related technical structures not described in detail in the present application are existing technologies in the art.

Claims

1. A multi-size stator silicon steel sheet automatic clamping device, comprising a plurality of stator clamping machines (5) and a rotating lifting platform (4) arranged oppositely, characterized in that: the plurality of stator clamping machines (5) are arranged centripetally, the main body frame (557) is slidingly arranged on the guide plate (556) and driven to reciprocate by the clamping driving device (549) to complete the clamping action; the clamping end of the main body frame (557) is provided with an adjustable height top forming shell (562), the top forming shell (562) is slidingly arranged on the end plate (559) of the main body frame (557), the inner side of the end plate (559) is provided with a rack (558), the inner side of the top forming shell (562) is provided with a staggered shaft helical gear (561) meshing with the rack (558), and the staggered shaft helical gear (561) drives the top forming shell (562) to move up and down; the rotating lifting platform (4) comprises a rotating table (424), a plurality of lifting devices (418) and a plurality of variable diameter inner connecting devices (42), and the variable diameter inner connecting device (42) is fixedly arranged on the lifting device (418); the variable diameter inner connecting device (42) comprises an inner connecting device base (415) with a plurality of centripetal T-shaped tracks, a plurality of sector outer connecting plates (416) arranged in the centripetal tracks and an adjusting gear (425) with a plurality of centripetal circular arc grooves, the sector outer connecting plate (416) is provided with a guide column (417) above to cooperate with the centripetal circular arc groove, the adjusting gear (425) is provided with a motor to drive rotation, the guide column (417) is driven to slide in the centripetal circular arc groove, and then the sector outer connecting plate (416) is driven to slide outward and abut against the inner wall of the stator; the device further comprises an overall support composed of a C-shaped support (55) at the bottom and a four-column support (52) at the top, the rotating lifting platform (4) is arranged in the C-shaped support (55), the stator clamping machine (5) is arranged above the C-shaped support (55), a through hole is formed at the center of the plurality of stator clamping machines (5), the variable diameter inner connecting device (42) rotating to the machining position passes through the through hole and rises to the center of the plurality of stator clamping machines (5) through the lifting device (418); a plurality of steel belt cutting devices (544) are fixedly arranged at the lower end of the top plate of the four-column support (52), the steel belt cutting device (544) cooperates with the stator clamping machine (5), a steel belt pinch roller (59) is arranged at the top of the four-column support (52) and a through hole is formed to convey the steel belt to the machining position of the steel belt cutting device (544), and the steel belt cutting device (544) is provided with a steel belt guide rail to align the steel belt with the clamping machining position; the clamping driving device (549) comprises a rotating rod (548) driven by a motor and a connecting rod (551), the two ends of the connecting rod (551) are respectively hinged to the rotating rod (548) and the main body frame (557), the rotating rod (548) rotates to drive the connecting rod (551) to drive the main body frame (557) to move in the set direction of the guide plate (556), forming a crank slider structure. The rotating base (423) is arranged at the bottom of the rotating table (424), and the rotating table (424) is fixedly connected with a rotating shaft of the rotating base (423), and the rotating shaft is driven to rotate by the rotating motor (413).

2. The multi-size stator lamination automatic collating apparatus of claim 1, wherein: The lifting device (418) comprises a fixing frame fixedly connected with the variable-diameter inner connection device (42), a plurality of screw rods (48) rotatably arranged on the fixing frame, and a base (47) provided with a plurality of screw holes, the screw rods (48) are driven by a motor and a gear set at the upper end and are used in cooperation with the screw holes at the lower end, and the base (47) is fixedly connected with the rotating table (424).

3. The multi-size stator lamination automatic collating apparatus of claim 1, wherein: The four-column support (52) is fixedly connected with a plurality of steel belt cutting devices (544), and the lifting table (526) is fixedly connected with the hydraulic cylinder (51) at the upper end.

4. A production line using the automatic punching process apparatus for multi-size stator silicon steel sheets according to any one of claims 1 to 3, characterized by: The device comprises a first conveying belt (1), a gantry clamping jaw mechanism (2), a stator chip machine (3), a multi-size stator silicon steel sheet automatic chip processing device and a second conveying belt (6), the gantry clamping jaw mechanism (2) is connected with the end of the first conveying belt (1) and the starting end of the second conveying belt (6), the multi-size stator silicon steel sheet automatic chip processing device is arranged in the middle of the gantry clamping jaw mechanism (2), and the stator chip machine (3) is arranged at the end of the first conveying belt (1).

5. The production line according to claim 4, characterized in that: The gantry clamping jaw mechanism (2) comprises a gantry (29) and a clamping jaw (22), the gantry (29) is provided with guide rails (211) matched with the clamping jaw (22), so that the clamping jaw (22) moves transversely on the gantry (29), the clamping jaw (22) is provided with a cylinder (21) for controlling the clamping jaw (22) to ascend and descend, and the clamping jaw (22) is provided with a motor for driving a clamping finger (226) to open and close.

6. The production line according to claim 4, characterized in that: The stator chip machine (3) is provided with a fifth motor (34), a rotating round head (31), a fixed cylinder (32), a first circular table base (33) and a limiting plate (36), wherein the fifth motor (34) is fixed to the chip machine base (35), the rotating round head (31) is matched with the fixed cylinder (32), the fixed cylinder (32) is connected with the fifth motor (34), and the first circular table base (33) and the limiting plate (36) are both welded to the chip machine base (35).

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