Stator lamination stacking apparatus

Abstract

The utility model relates to motor stator processing equipment technical field discloses stator punching sheet lamination equipment, including base, be equipped with a plurality of support posts on the base, support post top is equipped with the top plate, be equipped with the pressing mechanism on the top plate, be equipped with the placement platform on the base, the placement platform is through the sliding mechanism and is connected with the base sliding, be equipped with the fixing base on the placement platform, the fixing base includes the fixed plate, fixed shaft and lifting plate of coaxial arrangement, the fixed plate passes through a plurality of fixed mechanisms and is detachably connected with the placement platform, fixed shaft fixed setting is at the fixed plate top, the lifting plate is set on the fixed shaft, a plurality of nut grooves are equipped along the circumference on the lifting plate. The utility model is intended to adapt to the lamination operation of different models of stator punching sheet.

Description

Technical Field

[0001] This utility model relates to the technical field of motor stator processing equipment, specifically to a stator lamination stacking equipment. Background Technology

[0002] The stator core is a critical component of electrical equipment such as motors, and its performance and quality play a decisive role in the motor's operating efficiency and stability. Typically, a stator core is made by precisely stacking a large number of silicon steel sheets of the same specifications (i.e., stator laminations). The stator laminations, with insulating coatings on their surfaces, are stacked sequentially along the axial direction and then formed into a single unit through processes such as tie rods, curing, or riveting. To ensure uniform magnetic flux distribution and low vibration and noise during motor operation, sufficient axial pressure must be applied to the stacked laminations to minimize air gaps between them and ensure that the slots of each lamination are aligned. Therefore, the "stacking" process is a crucial step in stator core manufacturing.

[0003] Currently, publicly available stator lamination stacking equipment typically includes a frame, a pressing worktable mounted on the frame, and a hydraulic or pneumatic mechanism for driving the pressing head downwards. During operation, stator laminations are fitted onto a positioning shaft fixed to the worktable. After a predetermined number are stacked, the driving mechanism moves the pressing head downwards, performing one or multiple pressing operations on the stator lamination stack. The operator then installs and tightens the tie rods while the stack is in a compressed state.

[0004] However, the existing equipment has obvious drawbacks: First, its worktable is mostly a fixed structure, which limits the operating space and makes loading and unloading inconvenient, especially when handling large or heavy stator cores, posing safety hazards and causing low efficiency; Second, the equipment is usually designed for stator laminations of specific specifications, with the positioning shaft and worktable fixed as one unit. When the production model is changed, the entire unit needs to be replaced or cumbersome adjustments need to be made, resulting in long changeover times, poor equipment versatility, and difficulty in adapting to flexible production needs; Third, after pressing, the finished core is tightly attached to the positioning shaft, making it difficult to remove. It often requires manual forceful hammering, which is not only labor-intensive but may also damage the core or positioning shaft. Utility Model Content

[0005] The present invention aims to provide a stator lamination stacking device to adapt to the stacking operation of stator laminations of different models.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A stator lamination stacking device includes a base with multiple support rods on it. A top plate is located on the top of each support rod, and a pressing mechanism is located on the top plate. A placement platform is located on the base and is slidably connected to the base via a sliding mechanism. A fixed seat is located on the placement platform. The fixed seat includes a coaxially arranged fixed plate, a fixed shaft, and a lifting plate. The fixed plate is detachably connected to the placement platform via multiple fixing mechanisms. The fixed shaft is fixedly mounted on the top of the fixed plate, and the lifting plate is sleeved on the fixed shaft. Multiple nut grooves are provided circumferentially on the lifting plate.

[0007] The principle and advantages of this scheme are: 1. A sliding mechanism has been added, which can move the placement platform outside the base. First, it facilitates the installation of fixed seats or the placement of stator laminations on the placement platform, avoiding the difficulties of operation in the limited space inside the equipment, and improving the convenience and efficiency of operation. Second, it separates the stator lamination loading and unloading station from the stacking station, allowing operators to load and unload materials in a safe area outside the equipment, avoiding operation under the huge pressing mechanism, and greatly improving safety and convenience.

[0008] 2. The mounting base and the placement platform are detachably connected, which can accommodate the stacking of stator laminations of different models. You only need to replace the mounting base with the corresponding model of the stator lamination. The mounting base also includes a lifting plate, which can drive the stator laminations to rise, making it easy to remove the stator laminations after stacking. The nut groove on the lifting plate facilitates the subsequent connection of the nut and the tie rod.

[0009] Preferably, as an improvement, multiple fixing mechanisms are arranged circumferentially along the fixing seat. Each fixing mechanism includes a mounting hole, a fixing bolt, a movable bolt, and a pressure plate. The mounting hole is located on the top of the placement platform. One end of the fixing bolt is threaded into the mounting hole. One end of the pressure plate is sleeved on the fixing bolt and rotatably connected to it. The pressure plate has an elongated hole. One end of the movable bolt passes through the elongated hole, and the other end has a T-shaped structure. The placement platform has a groove that matches the T-shaped structure of the movable bolt. The other end of the pressure plate presses against the fixing plate. A fixing nut is screwed into the top of the movable bolt to lock the pressure plate and the fixing plate.

[0010] Technical benefits: This solution adopts the above-mentioned setup, utilizing the movement of the movable bolt within the elongated hole of the pressure plate and the sliding groove of the placement platform to achieve flexible rotation of the pressure plate. By rotating the pressure plate to form a lever, one end of the pressure plate presses against the fixed plate, and the fixed plate is locked by tightening the fixing nut. The entire pressing and loosening process only requires rotating the pressure plate and turning the nut, without the need for complicated tools, making the operation quick and easy. Furthermore, when disassembling the fixed seat, rotating the pressure plate outward can avoid interference.

[0011] Preferably, as an improvement, the mounting holes are provided in multiple locations, and the multiple mounting holes are spaced apart along the direction of the slide groove.

[0012] Technical benefits: The above-mentioned setup allows for greater adjustment of the installation position of the fixing bolts, thereby expanding the range of compatible fixing plate sizes. The most suitable mounting holes can be selected according to the size of the fixing plate, so that the pressure plate presses the fixing plate at the optimal angle and position, resulting in more reasonable force distribution and more stable fixation.

[0013] Preferably, as an improvement, the fixing bolt is provided with a limiting sleeve, the limiting sleeve is located between the pressure plate and the placement platform, and the thickness of the limiting sleeve is equal to the thickness of the fixing plate.

[0014] Technical effect: The above-mentioned setting is adopted in this solution. The limiting sleeve is equivalent to a pad. When the pressure plate presses the fixed plate, the limiting sleeve can support the other end of the pressure plate, ensuring that both ends of the pressure plate are in a horizontal state, preventing the pressure plate from deforming or being excessively pressed down during the force process, and ensuring the stability and uniformity of the pressure plate pressing.

[0015] Preferably, as an improvement, the sliding mechanism includes two slide rails and a sliding hydraulic cylinder. The slide rails are fixedly mounted on the base, and the length of the slide rails is greater than the width of the base. The bottom of the placement platform is provided with a slider that cooperates with the slide rails. The sliding hydraulic cylinder is fixedly mounted on the base. The bottom of the placement platform is provided with a connecting block. The telescopic end of the sliding hydraulic cylinder is fixedly connected to the connecting block.

[0016] Technical effect: The above-mentioned configuration in this solution uses a sliding hydraulic cylinder to drive the placement platform to move stably along the slide rail. The length of the slide rail is greater than the width of the base, ensuring that the placement platform can be completely moved out of the base area, providing a sufficient and safe working space for external operations.

[0017] Preferably, as an improvement, each of the two slide rails has a lifting hydraulic cylinder on its opposite side. The placement platform has a through hole for the extension and retraction end of the lifting hydraulic cylinder to pass through. The fixing plate also has a through hole for the extension and retraction end of the lifting hydraulic cylinder to pass through. The extension and retraction end of the lifting hydraulic cylinder passes through the through hole and the through hole in sequence and then abuts against the lifting plate.

[0018] Technical benefits: The above-mentioned setup facilitates the removal of the placement platform after stacking. Driven by the lifting hydraulic cylinder, the lifting plate can lift the finished stator core as a whole, assisting in unloading. This eliminates the need for manual handling of heavy cores, improving efficiency and reducing labor intensity and the risk of work-related injuries.

[0019] Preferably, as an improvement, the diameter of the through hole is larger than the diameter of the through hole, and the top of the placement platform is provided with an annular positioning ring along the circumference of the through hole, the outer diameter of the positioning ring being equal to the diameter of the through hole.

[0020] Technical effect: With the above settings, when installing the fixed base, simply align the through hole of the fixed plate and put it on the positioning ring to quickly achieve the initial positioning and guidance of the fixed plate, ensuring that the through hole on the fixed plate is aligned with the through hole on the placement platform, and that the telescopic end of the lifting hydraulic cylinder can pass through without obstruction and without interfering with the fixed plate.

[0021] Preferably, as an improvement, the placement platform is further provided with a positioning block, and the bottom of the fixing seat is provided with a positioning groove that cooperates with and connects to the positioning block.

[0022] Technical effect: The above-mentioned configuration of this solution, with the positioning block and positioning groove connected together, together with the positioning ring, achieves dual positioning of the fixing plate, further improving the installation accuracy of the fixing plate, thereby ensuring the positional accuracy of the stator laminations during the stacking process and improving the stacking quality.

[0023] Preferably, as an improvement, the base is provided with two support blocks, which are located between the slide rail and the sliding hydraulic cylinder.

[0024] Technical effect: The above-mentioned configuration in this solution distributes the pressure on the slide rail generated by the placement platform and stator laminations during the stacking process, avoiding the slide rail and slider from bearing huge vertical loads, thereby effectively preventing slide rail deformation and wear, and extending the service life of the sliding mechanism.

[0025] Preferably, as an improvement, the pressing mechanism includes a pressing cylinder, a pressing hydraulic cylinder, and a pressing plate. The pressing hydraulic cylinder is fixedly connected to the top plate, and the telescopic end of the pressing hydraulic cylinder is connected to the pressing cylinder. The pressing cylinder and the pressing plate are detachably connected. The pressing cylinder has a cylindrical groove that mates with a fixed shaft. The pressing plate is slidably connected to multiple support rods.

[0026] Technical effect: The above settings in this solution can ensure that the pressure cylinder is accurately aligned with the fixed shaft during the descent process, and ensure that the downward pressure is applied evenly to the stator laminations, thereby obtaining a stator core with consistent density and high quality. Attached Figure Description

[0027] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0028] Figure 2 This is a side view of the present invention.

[0029] Figure 3 This is a cross-sectional view of the present invention.

[0030] Figure 4 This is a sectional view of the fixing base of this utility model.

[0031] Figure 5 This is an enlarged view of section A of this utility model.

[0032] The reference numerals in the accompanying drawings include: base 1, support rod 11, top plate 12, support block 13, placement platform 2, slider 21, connecting block 22, slide groove 23, positioning block 24, positioning ring 25, sliding mechanism 3, slide rail 31, sliding hydraulic cylinder 32, fixed seat 4, fixed plate 41, through hole 411, fixed shaft 42, positioning groove 421, lifting plate 43, nut groove 431, fixing mechanism 5, mounting hole 51, fixing bolt 52, limit sleeve 521, movable bolt 53, fixing nut 531, pressure plate 54, elongated hole 541, lifting hydraulic cylinder 6, pressing mechanism 7, pressing cylinder 71, pressing hydraulic cylinder 72, pressing plate 73. Detailed Implementation

[0033] The following detailed description illustrates the specific implementation method: Example The basics are as follows: Figure 1-5 As shown: Stator lamination stacking equipment, such as Figure 1 As shown, the system includes a base 1 with multiple support rods 11 on it. A top plate 12 is located on the top of each support rod 11. A pressing mechanism 7 for stacking multiple stator laminations is located on the top plate 12. A placement platform 2 is located on the base 1 and is slidably connected to the base 1 via a sliding mechanism 3. The sliding mechanism 3 can drive the placement platform 2 to move outside the base 1, facilitating the placement of stator laminations onto the platform 2. A fixing seat 4 for placing the stator laminations is located on the placement platform 2. The fixing seat 4 includes a coaxially arranged fixing plate 41, a fixing shaft 42, and a lifting plate 43. The fixing plate 41 is detachably connected to the placement platform 2 via multiple fixing mechanisms 5. The fixing shaft 42 is fixedly mounted on the top of the fixing plate 41. The outer surface of the fixing shaft 42 has protrusions (not shown) that engage with the stator laminations. The lifting plate 43 is sleeved on the fixing shaft 42 and can move up and down along the fixing shaft 42. Multiple nut grooves 431 are provided circumferentially on the lifting plate 43.

[0034] Multiple fixing mechanisms 5 are arranged circumferentially along the fixing base 4, specifically, such as Figure 5As shown, the fixing mechanism 5 includes a mounting hole 51, a fixing bolt 52, a movable bolt 53, and a pressure plate 54. The mounting hole 51 is located on the top of the placement platform 2. One end of the fixing bolt 52 is threadedly connected to the mounting hole 51. One end of the pressure plate 54 is sleeved on the fixing bolt 52 and rotatably connected to the fixing bolt 52. The pressure plate 54 has an elongated hole 541. One end of the movable bolt 53 passes through the elongated hole 541, and the other end has a T-shaped structure. The placement platform 2 has a sliding groove 23 that matches the T-shaped structure of the movable bolt 53. The top of the movable bolt 53 can move along the elongated hole 541, and the bottom can move along the sliding groove 23. The other end of the pressure plate 54 presses on the fixing plate 41. The top of the movable bolt 53 is screwed into the fixing nut 531 to lock the pressure plate 54 and the fixing plate 41.

[0035] Furthermore, multiple mounting holes 51 are provided, and the multiple mounting holes 51 are spaced apart along the slide groove 23. The fixing bolts 52 can be connected to different mounting holes 51 to accommodate fixing plates 41 of different specifications. The fixing bolts 52 are provided with limiting sleeves 521. The limiting sleeves 521 are located between the pressure plate 54 and the placement platform 2. The thickness of the limiting sleeves 521 is equal to the thickness of the fixing plate 41. When the pressure plate 54 presses the fixing plate 41 at one end, the limiting sleeves 521 support the other end of the pressure plate 54.

[0036] like Figure 1 As shown, the sliding mechanism 3 includes two slide rails 31 and a sliding hydraulic cylinder 32. The slide rails 31 are fixedly mounted on the base 1, and the length of the slide rails 31 is greater than the width of the base 1. The bottom of the placement platform 2 is provided with a slider 21 that cooperates with the slide rails 31. The sliding hydraulic cylinder 32 is fixedly mounted on the base 1. The bottom of the placement platform 2 is provided with a connecting block 22. The telescopic end of the sliding hydraulic cylinder 32 is fixedly connected to the connecting block 22. When the sliding hydraulic cylinder 32 works, it drives the connecting block 22 to move, thereby driving the placement platform 2 to move along the slide rails 31.

[0037] like Figure 2 As shown, each of the two slide rails 31 has a lifting hydraulic cylinder 6 on its opposite side. The placement platform 2 has a through hole for the extension / retraction end of the lifting hydraulic cylinder 6 to pass through. The fixing plate 41 also has a through hole 411 for the extension / retraction end of the lifting hydraulic cylinder 6 to pass through. The extension / retraction end of the lifting hydraulic cylinder 6 passes through the through hole and the through hole 411 in sequence and then abuts against the lifting plate 43, driving the lifting plate 43 to move up and down along the fixing shaft 42. Furthermore, the diameter of the through hole 411 is larger than the diameter of the through hole. A ring-shaped positioning ring 25 is provided on the top of the placement platform 2 along the circumference of the through hole. The outer diameter of the positioning ring 25 is equal to the diameter of the through hole 411. The through hole 411 is fitted onto the outside of the positioning ring 25 to position the fixing plate 41. Simultaneously, the through hole 411 is aligned with the through hole, ensuring that the extension / retraction end of the lifting hydraulic cylinder 6 can pass through the through hole and the through hole 411 to drive the lifting plate 43 to move. Figure 3As shown, the placement platform 2 is also provided with a positioning block 24, and the bottom of the fixing base 4 is provided with a positioning groove 421 that cooperates with and connects to the positioning block 24. The positioning ring 25 and the positioning block 24 realize dual positioning of the fixing plate 41.

[0038] The base 1 is provided with two support blocks 13, which are located between the slide rail 31 and the sliding hydraulic cylinder 32. When the placement plate moves above the base 1, it supports the placement plate and prevents the slide rail 31 from being damaged due to excessive force when the pressing device presses the stator laminations on the placement plate.

[0039] like Figure 3 As shown, the pressing mechanism 7 includes a pressing cylinder 71, a pressing hydraulic cylinder 72, and a pressing plate 73. The pressing hydraulic cylinder 72 is fixedly connected to the top plate 12. The telescopic end of the pressing hydraulic cylinder 72 is connected to the pressing cylinder 71. The pressing cylinder 71 and the pressing plate 73 are detachably connected. The pressing cylinder 71 is provided with a cylindrical groove that is connected to the fixed shaft 42. The pressing plate 73 is slidably connected to multiple support rods 11.

[0040] In actual use, the sliding mechanism 3 drives the placement platform 2 to move to the outside of the base 1, and the fixing seat 4 matching the stator laminations to be stacked is installed on the placement platform 2. The fixing plate 41 is placed on the placement platform 2, ensuring that the through hole 411 is fitted on the outside of the positioning ring 25 and the positioning groove 421 is connected with the positioning block 24. At this time, the fixing seat 4 is positioned. Then, the appropriate mounting hole 51 is selected and the fixing bolt 52 is screwed in. Then, the pressure plate 54 is rotated. During the rotation, the top of the movable bolt 53 will slide in the long hole 541 of the pressure plate 54, and the T-shaped structure at the bottom of the movable bolt 53 will slide in the sliding groove 23 until one end of the pressure plate 54 presses on the fixing plate 41 and the movable bolt 53 is in contact with the side of the fixing plate 41. At this time, the pressure plate 54 reaches the best position for pressing. Tighten the fixing nut 531 to press the fixing plate 41 on the placement platform 2. Repeat the above operation so that the pressure plates 54 of multiple fixing mechanisms 5 press the fixing plate 41. After the fixed base 4 is installed, first place the nut in the nut groove 431 of the lifting plate 43, then put the stator laminations onto the fixed shaft 42 in batches, and finally place the cover plate. At this time, the sliding mechanism 3 drives the placement platform 2 to move along the slide rail 31 to the top of the base 1. The pressing cylinder 71 descends under the drive of the pressing hydraulic cylinder 72 to pre-press the stator laminations multiple times. After pre-pressing, it rises. At this time, the pull rod is placed into the stator lamination, and then the pull rod is turned so that the pull rod is threadedly connected to the nut at the bottom. Note that the pull rod must be turned diagonally. After all the pull rods are tightened, the pressing hydraulic cylinder 72 drives the pressing cylinder 71 to descend again to maintain the pressure on the stator laminations. During the pressure maintenance time, all the pull rods are tightened again. At this time, the stacking of the stator laminations is completed, and the pressing cylinder 71 rises. Finally, driven by the sliding mechanism 3, the placement platform 2 moves to the outside of the base 1 again, and the lifting hydraulic cylinder 6 drives the lifting platform to move the stator laminations up along the fixed shaft 42, making it easy to take out the stacked stator laminations.

[0041] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A stator lamination stacking device, comprising a base, wherein a plurality of support rods are provided on the base, a top plate is provided on the top of the support rods, and a pressing mechanism is provided on the top plate, characterized in that: The base is provided with a placement platform, which is slidably connected to the base via a sliding mechanism. The placement platform is provided with a fixed seat, which includes a fixed plate, a fixed shaft, and a lifting plate arranged coaxially. The fixed plate is detachably connected to the placement platform via multiple fixing mechanisms. The fixed shaft is fixedly installed on the top of the fixed plate, and the lifting plate is sleeved on the fixed shaft. The lifting plate is provided with multiple nut grooves along its circumferential direction.

2. The stator lamination stacking equipment according to claim 1, characterized in that: Multiple fixing mechanisms are arranged circumferentially along the fixing base. Each fixing mechanism includes a mounting hole, a fixing bolt, a movable bolt, and a pressure plate. The mounting hole is located on the top of the placement platform. One end of the fixing bolt is threaded into the mounting hole. One end of the pressure plate is fitted onto the fixing bolt and is rotatably connected to it. The pressure plate has an elongated hole. One end of the movable bolt passes through the elongated hole, and the other end has a T-shaped structure. The placement platform has a groove that matches the T-shaped structure of the movable bolt. The other end of the pressure plate presses against the fixing plate. A fixing nut is screwed into the top of the movable bolt to lock the pressure plate and the fixing plate together.

3. The stator lamination stacking equipment according to claim 2, characterized in that: The mounting holes are provided in multiple locations, and the mounting holes are spaced apart along the direction of the slide groove.

4. The stator lamination stacking equipment according to claim 2, characterized in that: The fixing bolt is provided with a limiting sleeve, which is located between the pressure plate and the placement platform. The thickness of the limiting sleeve is equal to the thickness of the fixing plate.

5. The stator lamination stacking equipment according to claim 1, characterized in that: The sliding mechanism includes two slide rails and a sliding hydraulic cylinder. The slide rails are fixedly mounted on the base, and the length of the slide rails is greater than the width of the base. The bottom of the placement platform is provided with a slider that cooperates with the slide rails. The sliding hydraulic cylinder is fixedly mounted on the base. The bottom of the placement platform is provided with a connecting block. The telescopic end of the sliding hydraulic cylinder is fixedly connected to the connecting block.

6. The stator lamination stacking equipment according to claim 5, characterized in that: Both sides of the two slide rails are provided with lifting hydraulic cylinders. The placement platform is provided with a through hole for the extension and retraction end of the lifting hydraulic cylinder to pass through. The fixing plate is also provided with a through hole for the extension and retraction end of the lifting hydraulic cylinder to pass through. The extension and retraction end of the lifting hydraulic cylinder passes through the through hole and the through hole in sequence and then abuts against the lifting plate.

7. The stator lamination stacking equipment according to claim 6, characterized in that: The diameter of the through hole is larger than the diameter of the through hole, and the top of the placement platform is provided with an annular positioning ring along the circumference of the through hole, the outer diameter of the positioning ring being equal to the diameter of the through hole.

8. The stator lamination stacking equipment according to claim 7, characterized in that: The placement platform is also provided with a positioning block, and the bottom of the fixing seat is provided with a positioning groove that cooperates with and connects to the positioning block.

9. The stator lamination stacking equipment according to claim 1, characterized in that: The base is provided with two support blocks, which are located between the slide rail and the sliding hydraulic cylinder.

10. The stator lamination stacking equipment according to claim 1, characterized in that: The pressing mechanism includes a pressing cylinder, a pressing hydraulic cylinder, and a pressing plate. The pressing hydraulic cylinder is fixedly connected to the top plate. The telescopic end of the pressing hydraulic cylinder is connected to the pressing cylinder. The pressing cylinder and the pressing plate are detachably connected. The pressing cylinder has a cylindrical groove that mates with a fixed shaft. The pressing plate is slidably connected to multiple support rods.

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