A new energy automobile motor silicon steel sheet stacking device

Abstract

This invention discloses a silicon steel sheet stacking device for new energy vehicle motors, belonging to the field of stacking devices. It includes a column-type mobile lifting machine, a negative pressure adsorption mechanism, and a stacking plate seat. This device achieves the self-rotation of silicon steel sheets by relying on pure mechanical force, without the need for motor drive. It saves energy and reduces emissions, and can also disperse and correct the cumulative error of silicon steel sheet thickness deviation, solving the problem of thickness deviation in silicon steel sheet stacking, and is suitable for the industrial production requirements of new energy vehicle motors.

Description

Technical Field

[0001] This invention relates to the field of lamination devices, and more specifically, to a lamination device for silicon steel sheets in a new energy vehicle motor. Background Technology

[0002] As a core component of the power system in new energy vehicles, the assembly precision of the silicon steel sheets in the motor directly determines the motor's magnetic circuit performance, operating efficiency, and service life. Since the silicon steel sheets for motors are made by precisely stacking multiple sheets, the silicon steel sheet stacking process is a crucial step in the manufacturing of new energy vehicle motors. During the stamping and rolling processes, due to factors such as material properties and processing precision, slight thickness deviations are unavoidable in individual silicon steel sheets. Although these deviations are small per sheet, they accumulate during the continuous stacking of multiple sheets, leading to defects such as excessive perpendicularity, roundness deviations, and overall warping in the stacked silicon steel sheets. These defects not only cause difficulties in aligning the winding openings during subsequent motor winding assembly but also disrupt the uniformity of the internal magnetic circuit, increasing energy consumption and reducing the motor's operational stability and service life.

[0003] In existing technologies, the stacking of silicon steel sheets for new energy vehicle motors mostly employs manual stacking or ordinary mechanical negative pressure adsorption stacking methods. These methods primarily involve directly adsorbing the silicon steel sheets and placing them onto a stacking base for stacking. They lack a specific silicon steel sheet rotation correction structure, making it inconvenient to disperse and correct the cumulative errors caused by individual sheet thickness deviations through angular rotation of the silicon steel sheets. Therefore, they are not effective in resolving defects in stacked products caused by thickness stacking deviations. Furthermore, although some devices possess the function of rotating and stacking silicon steel sheets, they typically use motor-assisted rotation. While the structure is simple, motor-assisted rotation undoubtedly increases the equipment's energy consumption, which is detrimental to energy conservation and emission reduction.

[0004] In summary, the industry urgently needs an automated silicon steel sheet stacking device for new energy vehicle motors that can correct thickness deviations through silicon steel sheet rotation, solve defects in stacked products, and simultaneously possess stable negative pressure adsorption, no air path interference, and rotational positioning relying on pure mechanical force, in order to meet the industrial production requirements of new energy vehicle motors. Therefore, we propose a silicon steel sheet stacking device for new energy vehicle motors to solve the aforementioned problems. Summary of the Invention

[0005] 1. Technical problems to be solved In existing technologies, the stacking of silicon steel sheets for new energy vehicle motors mostly employs manual stacking or ordinary mechanical negative pressure adsorption stacking methods. These methods primarily involve directly adsorbing the silicon steel sheets and placing them onto a stacking base for stacking. They lack a specific silicon steel sheet rotation correction structure, making it inconvenient to disperse and correct the cumulative errors caused by individual sheet thickness deviations through angular rotation of the silicon steel sheets. Therefore, they are not effective in resolving defects in stacked products caused by thickness stacking deviations. Furthermore, although some devices possess the function of rotating and stacking silicon steel sheets, they typically use motor-assisted rotation. While the structure is simple, motor-assisted rotation undoubtedly increases the equipment's energy consumption, which is detrimental to energy conservation and emission reduction.

[0006] 2. Technical Solution To solve the above problems, the present invention adopts the following technical solution.

[0007] A silicon steel sheet stacking device for new energy vehicle motors includes a column-type mobile lifting machine, a negative pressure adsorption mechanism, and a stacking plate base. The negative pressure adsorption mechanism includes a drive box, on which a push rod is slidably connected. One end of the push rod located outside the drive box is rotatably connected to a contact pulley, and a set of positioning pins is fixedly installed at the other end of the push rod. An anti-reverse hook segment and an elastic hook segment are fixedly connected to one side of the push rod located inside the drive box. A shaft hole is opened on the drive box located between the anti-reverse hook segment and the elastic hook segment. A shaft rod is rotatably connected inside the shaft hole through a bearing. A gear is fixedly installed at the top end of the shaft rod. The hook portion of the anti-reverse hook segment meshes with the corresponding tooth of the gear. A gap is reserved between the elastic hook segment and the outer wall of the gear. Lugs are fixedly welded to the inner wall of the drive box and the top of the push rod. The two lugs are connected by a tension spring. A cover plate is fixedly installed on the top of the drive box.

[0008] Furthermore, a hollow ring is provided at the bottom of the drive box, and a mounting plate is fixedly connected to the inner edge of the hollow ring by several connecting strips. An air slip ring is provided at the top of the mounting plate. The air slip ring includes a rotating part and a fixed part. The rotating part is fixedly installed on the mounting plate by bolts, and the top of the fixed part is fixedly installed on the bottom of the drive box by bolts. The bottom end of the shaft passes through the air slip ring to the bottom of the mounting plate. A set of pins is fixedly installed at the bottom end of the shaft corresponding to the connection position of the mounting plate. A mating hole and a through hole are opened on the mounting plate corresponding to the position of the pins. The bottom end of the shaft is tightly embedded in the mating hole and the through hole by the pins.

[0009] Furthermore, an air inlet pipe is fixedly connected to the fixed part via an air pipe connector, and an exhaust pipe is fixedly connected between the rotating part and the hollow ring via an air pipe connector. Several silicone suction nozzles are also fixedly installed at equal intervals at the bottom of the hollow ring, and all of the silicone suction nozzles are connected to the exhaust pipe through the inside of the hollow ring.

[0010] Furthermore, the bottom of the hollow ring is negatively adsorbed by several silicone suction nozzles onto a silicon steel sheet body. Several winding openings are equally spaced on the silicon steel sheet body. Several tooth tips are provided on the gear. The number of winding openings is multiples of the number of tooth tips, and the midpoint of the arc between several adjacent winding openings corresponds to the position of the tooth tips.

[0011] Furthermore, the column-type mobile lifting machine includes a horizontal arm, a horizontal rail is fixedly installed inside the horizontal arm, and a trolley is slidably connected to the bottom of the horizontal rail. The bottom of the trolley is fixedly installed to the top of the cover plate through a connecting column.

[0012] Furthermore, the stacking plate base is disposed on one side of the column-type mobile lifting machine, and the stacking plate base includes a tray portion, the top of which is fixedly installed with a plurality of inner support columns, and the diameter of the circular line between the outer walls of the plurality of inner support columns is equal to the inner edge diameter of the silicon steel sheet body.

[0013] Furthermore, a vertical plate is fixedly welded to one side of the tray, and a convex edge plate is fixedly welded to the top side of the vertical plate, the height of which is greater than the height of the inner support column.

[0014] 3. Beneficial Effects Compared with the prior art, the advantages of this invention are: (1) The present invention utilizes the mechanical thrust generated by the lowering action of the column-type mobile lifting machine to push the push rod through the cooperation of the contact pulley and the convex edge plate of the stacking plate seat, thereby driving the gear and shaft linkage to realize the rotation of silicon steel sheet. The rotation action is completed entirely by pure mechanical force without the need for motor auxiliary drive. This avoids the problem of increased equipment energy consumption caused by motor drive, meets the production requirements of energy saving and emission reduction, and can also disperse and correct the cumulative error of single silicon steel sheet thickness deviation in the process of multi-sheet stacking by rotating the angle of a single silicon steel sheet, thereby reducing the problem of cumulative error of thickness deviation after silicon steel sheet stacking. Meanwhile, the faster the column-type mobile elevator lowers, the faster the push rod moves. This increases the forward rotational inertia of the gears, hollow rings, and silicon steel sheets, resulting in more forward rotations. This satisfies the need for positioning and stacking of the silicon steel sheets after their rotation, which has a variable number of rotations. Conversely, the slower and more uniform the lowering motion of the column-type mobile elevator, the slower and more uniform the push rod moves. This reduces the reverse rotational inertia of the gears, hollow rings, and silicon steel sheets, decreasing the number of reverse rotations and preventing the forward rotations from being canceled out. (2) In this solution, the present invention connects the exhaust pipe and the air inlet pipe to the rotating part and the fixed part of the air slip ring respectively, so that the air path remains connected during the rotation of the hollow ring with the silicon steel sheet. This not only achieves stable negative pressure adsorption of the silicon steel sheet body by the silicone nozzle, effectively preventing the silicon steel sheet from falling off during the transfer process, but also avoids the interference problem of the air path caused by the rotation of the hollow ring, so that the rotation of the silicon steel sheet is smooth and without jamming. At the same time, the equidistant arrangement of the silicone nozzles makes the adsorption force evenly distributed, preventing the silicon steel sheet from deforming during adsorption and rotation, and further ensuring the stacking quality of the silicon steel sheet. (3) In this solution, the number of winding openings is multiples of the number of tooth tips, and the design of the midpoint of the arc of adjacent winding openings corresponding to the tooth tip position can improve the alignment accuracy of the winding openings of silicon steel sheets, reduce the probability of winding opening misalignment after lamination, facilitate the subsequent winding assembly of the motor, and at the same time improve the uniformity of the internal magnetic circuit of the motor, and improve the working stability and service life of the motor. (4) The diameter of the outer wall of the inner support column of the stacking plate base is matched with the inner diameter of the silicon steel sheet body. The inner support column is evenly distributed along the circumference, so that the diameter of its encircling circle is completely matched with the inner diameter of the silicon steel sheet body, forming a multi-point synchronous inner support guide, ensuring that the inner support column constrains the radial displacement of the silicon steel sheet body throughout the process, avoiding tilting and deviation during the falling process, and ensuring the verticality of the stacking. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the central region structure; Figure 3For the present invention Figure 2 Schematic diagram of the central region structure; Figure 4 This is a schematic diagram of the internal structure of the drive box of the present invention; Figure 5 This is a schematic diagram of the shaft structure of the present invention; Figure 6 This is a schematic diagram of the installation disk structure of the present invention; Figure 7 This is a schematic diagram of the stacked disk base structure of the present invention.

[0016] Explanation of the labels in the diagram: 1. Negative pressure adsorption mechanism; 2. Drive box; 201. Shaft hole; 3. Push rod; 301. Contact pulley; 302. Positioning pin; 303. Anti-reverse hook section; 304. Elastic hook section; 4. Shaft; 401. Pin; 5. Gear; 501. Tooth tip; 6. Tension spring; 7. Cover plate; 8. Hollow ring; 9. Mounting plate; 901. Fitting hole; 902. Through hole; 10. Air slip ring; 001. Rotating part; 1002. Fixed part; 11. Air inlet pipe; 12. Exhaust pipe; 13. Silicon steel sheet body; 1301. Winding opening; 14. Column-type mobile lifting machine; 1401. Horizontal arm; 1402. Trolley; 1403. Connecting column; 15. Stacking plate seat; 1501. Pallet part; 1502. Inner support column; 1503. Vertical plate; 1504. Convex edge plate. Detailed Implementation

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. Example 1:

[0018] Please see Figures 1-7A silicon steel sheet stacking device for new energy vehicle motors includes a column-type mobile lifting machine 14, a negative pressure adsorption mechanism 1, and a stacking disc base 15. The negative pressure adsorption mechanism 1 includes a drive box 2, on which a push rod 3 is slidably connected. One end of the push rod 3 located outside the drive box 2 is rotatably connected to a contact pulley 301, and the other end of the push rod 3 is fixedly installed with a set of positioning pins 302. Inside the drive box 2, one side of the push rod 3 is fixedly connected to a stop hook section 303 and an elastic hook section 304. A shaft hole 201 is provided on the drive box 2 at the position between the retraction section 303 and the elastic hook section 304. A shaft rod 4 is rotatably connected inside the shaft hole 201 through a bearing. A gear 5 is fixedly installed at the top end of the shaft rod 4. The hook part of the anti-retraction hook section 303 meshes with the corresponding tooth of the gear 5. A gap is reserved between the elastic hook section 304 and the outer wall of the gear 5. Ear plates are fixedly welded to the inner wall of the drive box 2 and the top of the push rod 3. The two ear plates are connected by a tension spring 6. A cover plate 7 is fixedly installed on the top of the drive box 2.

[0019] A hollow ring 8 is provided at the bottom of the drive box 2. The inner edge of the hollow ring 8 is fixedly connected to the mounting plate 9 by several connecting strips. An air slip ring 10 is provided at the top of the mounting plate 9. The air slip ring 10 includes a rotating part 1001 and a fixed part 1002. The rotating part 1001 is fixedly installed on the mounting plate 9 by bolts. The top of the fixed part 1002 is fixedly installed on the bottom of the drive box 2 by bolts. The bottom end of the shaft 4 passes through the air slip ring 10 to the bottom of the mounting plate 9. A set of pins 401 is fixedly installed at the bottom end of the shaft 4 at the connection position of the mounting plate 9. The mounting plate 9 at the position of the pins 401 is provided with a mating hole 901 and a through hole 902. The bottom end of the shaft 4 is tightly embedded in the mating hole 901 and the through hole 902 by the pins 401.

[0020] An air inlet pipe 11 is fixedly connected to the fixed part 1002 via an air pipe connector. An exhaust pipe 12 is fixedly connected between the rotating part 1001 and the hollow ring 8 via an air pipe connector. Several silicone suction nozzles are also fixedly installed at equal intervals at the bottom of the hollow ring 8. All of the silicone suction nozzles are connected to the exhaust pipe 12 through the inside of the hollow ring 8.

[0021] The bottom of the hollow ring 8 is adsorbed by a number of silicone suction nozzles under negative pressure to the silicon steel sheet body 13. The silicon steel sheet body 13 has a number of winding openings 1301 at equal intervals. The gear 5 is provided with a number of tooth tips 501. The number of winding openings 1301 is multiple of the number of tooth tips 501, and the midpoint of the arc between several adjacent winding openings 1301 corresponds to the position of the tooth tips 501.

[0022] The column-type mobile lifting machine 14 includes a horizontal arm 1401, a horizontal rail is fixedly installed inside the horizontal arm 1401, and a trolley 1402 is slidably connected to the bottom of the horizontal rail. The bottom of the trolley 1402 is fixedly installed to the top of the cover plate 7 through a connecting column 1403.

[0023] The stacking plate base 15 is located on one side of the column-type mobile elevator 14, and the stacking plate base 15 includes a tray part 1501. Several inner support columns 1502 are fixedly installed on the top of the tray part 1501, and the diameter of the circular line between the outer walls of the several inner support columns 1502 is equal to the inner edge diameter of the silicon steel sheet body 13.

[0024] A vertical plate 1503 is fixedly welded to one side of the pallet section 1501, and a raised edge plate 1504 is fixedly welded to one side of the top of the vertical plate 1503. The height of the raised edge plate 1504 is greater than the height of the inner support column 1502.

[0025] This new energy vehicle motor silicon steel sheet stacking device relies on a purely mechanical force structure to achieve the horizontal rotation of the silicon steel sheet body before stacking. This achieves the problem of dispersing and correcting the cumulative error of thickness deviation after stacking adjacent silicon steel sheet bodies. Moreover, the self-rotation of the silicon steel sheet body does not require an additional motor drive, which is beneficial to energy conservation and emission reduction. The following sections will provide a detailed explanation: I. Negative pressure stable adsorption for tablet removal: The column-type mobile elevator 14 drives the negative pressure adsorption mechanism 1 to move to the silicon steel sheet feeding position (the specific structure and operating principle of the column-type mobile elevator are already known and publicly disclosed technologies, so they will not be described in detail here). The silicone suction nozzle at the bottom of the hollow ring 8 is tightly attached to the surface of the silicon steel sheet body 13. Then, the negative pressure pump connected to the air inlet pipe 11 is started, drawing negative pressure from inside the air inlet pipe 11. The negative pressure is drawn into the hollow ring 8 to a negative pressure state through the air inlet pipe 11, the air slip ring 10, and the exhaust pipe 12, so that the silicone suction nozzle can evenly adsorb the silicon steel sheet body 13. The fixed part 1002 and the rotating part 1001 of the air slip ring 10 can rotate relative to each other, ensuring that the silicon steel sheet body 13 can maintain continuous airflow, without interference or leakage during rotation, and ensuring stable adsorption without falling off (the specific structure and operating principle of the air slip ring are already known and publicly disclosed technologies, so they will not be described in detail here).

[0026] II. Purely mechanical force causing the silicon steel sheet to rotate freely due to inertia and its subsequent positioning: First, the negative pressure adsorption mechanism 1 carries the silicon steel sheet body 13 to the stacking plate seat 15 for rapid lowering. At this time, the contact pulley 301 first contacts the convex edge plate 1504 and slides along its inclined surface (the contact point of the contact pulley 301 on the convex edge plate 1504 gradually slides from the low position to the high position), pushing the push rod 3 to slide into the drive box 2. During the forward sliding of push rod 3, the hook portion on the anti-reverse hook section 303 gradually moves away from gear 5 until it completely disengages from the gear 5 teeth, thus unlocking gear 5. Simultaneously, the hook portion on the elastic hook section 304 gradually moves closer to gear 5 as push rod 3 continues to slide forward. When the hook portion on the elastic hook section 304 engages with the corresponding teeth on gear 5, the forward movement of push rod 3 can then use the elastic hook section 304 to rotate gear 5. During the rotation of gear 5, the hook portion of the elastic hook section 304 gradually moves away from gear 5 until it completely disengages from the gear 5 teeth, thus completing the effect of push rod 3 sliding forward once to rotate gear 5 once. This, in turn, causes gear 5 to drive the hollow ring 8 and silicon steel sheet body 13 to rotate synchronously once through the connection of shaft 4, pin 401, and mounting plate 9.

[0027] After the silicon steel sheet body 13 rotates forward once and comes to a complete stop, the negative pressure adsorption mechanism 1 carries the silicon steel sheet body 13 to perform a slow and uniform downward movement. At this time, the contact pulley 301 continues to contact the convex edge plate 1504 and slides along its inclined surface (the contact point of the contact pulley 301 on the convex edge plate 1504 gradually slides from a high position to a low position). When the contact pulley 301 slides past the high point of the convex edge plate 1504, the tension spring 6 pulls the push rod 3 backward and gradually resets it. At this time, the hook part on the elastic hook segment 304 first gradually retracts, causing the hook part to gradually move closer to the gear 5, and when the elastic hook segment 304... When the hook part re-engages with the corresponding tooth on the gear 5, the gear 5 is reversed. As the gear reverses and the hook part on the elastic hook section 304 gradually disengages from the corresponding tooth on the gear 5, the hook part on the anti-reverse hook section 303 gradually moves closer to the gear 5 until the hook part on the anti-reverse hook section 303 re-engages with the corresponding tooth on the gear 5. At this point, the limit positioning of the gear 5 after the push rod 3 is fully reset is completed. Then, the connection of the shaft 4, pin 401, and mounting plate 9 forces the hollow ring 8 and the silicon steel sheet body 13 to achieve the positioning effect after one reversal.

[0028] In the above process: First, the negative pressure adsorption mechanism 1 carries the silicon steel sheet body 13 to the stacking plate seat 15 and performs a rapid lowering. The purpose is that the faster the lowering speed, the faster the sliding speed of the push rod 3, which in turn can drive the gear 5, hollow ring 8, and silicon steel sheet body 13 to rotate forward. The greater the forward rotation inertia, the more rotations will be achieved, thus satisfying the positioning and stacking effect of the silicon steel sheet body 13 after rotating without a fixed number of rotations. The negative pressure adsorption mechanism 1 carries the silicon steel sheet body 13 and further performs a slow and uniform downward movement. The purpose of the slow and uniform downward movement is to reduce the sliding speed of the push rod 3, thereby reducing the reverse inertia of the actuating gear 5, hollow ring 8, and silicon steel sheet body 13, reducing the number of reverse rotations, and avoiding the cancellation of the number of rotations that were initially forward.

[0029] III. Vertically Guided Stacking: Based on the above, after the silicon steel sheet body 13 has undergone one forward and one reverse rotation and is positioned, the negative pressure adsorption mechanism 1 continues to descend at a constant speed to the set position (i.e., the downward movement after the contact pulley 301 has completely passed the convex edge plate 1504), so that the inner edge of the silicon steel sheet body 13 is precisely attached to the top outer wall of the inner support column 1502. At this time, the negative pressure pump stops working and switches to the pressure relief mode. After the silicon steel sheet body 13 is depressurized and loses adsorption, it can slide vertically down along the inner support column 1502 (the inner support column 1502 is evenly distributed along the circumference, and its encircling circle diameter is completely matched with the inner edge diameter of the silicon steel sheet body 13, forming a multi-point synchronous inner support guide). The inner support column 1502 constrains the radial displacement of the silicon steel sheet body 13 throughout the process, avoiding tilting or offset during the descent and ensuring the verticality of the stacked sheets.

[0030] IV. Continuous Cyclic Operations: After a single silicon steel sheet is stacked, the column-type mobile elevator 14 drives the negative pressure adsorption mechanism 1 to move upward at a uniform speed. The contact pulley 301 moves upward past the convex edge plate 1504 and then completes the reset. Subsequently, it moves to the feeding position to repeat the actions of picking up, rotating, positioning and stacking sheets, so as to realize continuous automated stacking operation.

[0031] V. Principle of Thickness Deviation Dispersion Correction: The thickness deviation of a single silicon steel sheet 13 is a random, small deviation. Traditional direct stacking methods will cause the deviation to accumulate continuously in the same direction, resulting in excessive verticality of the stack, roundness deviation, and overall warping. This device uses the inertial self-rotation of each silicon steel sheet 13 for positioning before stacking, so that the thickness deviation of a single sheet can be dispersed along the circumference 360°. This allows the deviations to cancel each other out within the stack, reduces the probability of accumulation in the same direction, eliminates the probability of stacking defects caused by accumulated errors, and helps to improve the uniformity of the motor magnetic circuit in the later stage. Example 2:

[0032] In view of the above embodiment 1, further description is provided, see reference. Figures 1-7By setting the air slip ring 10, the exhaust pipe 12 can rotate with the rotating part 1001 at the bottom of the drive box 2, and the intake pipe 11 can be firmly fixed to the bottom of the drive box 2 by the fixing part 1002. This ensures that the air passage inside the hollow ring 8 remains connected in real time and will not interfere with the air passage due to the rotation of the hollow ring 8.

[0033] The number of winding openings 1301 is multiples greater than the number of tooth tips 501, and the midpoint of the arc between several adjacent winding openings 1301 corresponds to the position of the tooth tip 501. This can improve the correspondence accuracy between the winding openings 1301 and the tooth tips 501, and reduce the probability that the winding openings 1301 of the previous silicon steel sheet body 13 will be misaligned after the latter silicon steel sheet body 13 is rotated and lowered.

[0034] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A silicon steel sheet stacking device for a new energy vehicle motor, comprising a column-type mobile lifting machine (14), a negative pressure adsorption mechanism (1), and a stacking plate seat (15), characterized in that: The negative pressure adsorption mechanism (1) includes a drive box (2), on which a push rod (3) is slidably connected. One end of the push rod (3) located outside the drive box (2) is rotatably connected to a contact pulley (301), and a set of positioning pins (302) is fixedly installed at the other end of the push rod (3). A stop hook section (303) and an elastic hook section (304) are fixedly connected to one side of the push rod (3) located inside the drive box (2). The drive box is located between the stop hook section (303) and the elastic hook section (304). (2) A shaft hole (201) is provided on the shaft hole (201). A shaft rod (4) is rotatably connected inside the shaft hole (201) through a bearing. A gear (5) is fixedly installed at the top end of the shaft rod (4). The hook part of the anti-reverse hook section (303) meshes with the corresponding tooth of the gear (5). A gap is reserved between the elastic hook section (304) and the outer wall of the gear (5). Ear pieces are fixedly welded to the inner wall of the drive box (2) and the top of the push rod (3). The two ear pieces are connected by a tension spring (6). A cover plate (7) is fixedly installed on the top of the drive box (2).

2. The silicon steel sheet stacking device for a new energy vehicle motor according to claim 1, characterized in that: The bottom of the drive box (2) is provided with a hollow ring (8), and the inner edge of the hollow ring (8) is fixedly connected to a mounting plate (9) by several connecting strips. The top of the mounting plate (9) is provided with a slip ring (10), which includes a rotating part (1001) and a fixing part (1002). The rotating part (1001) is fixedly installed on the mounting plate (9) by bolts, and the top of the fixing part (1002) is fixedly installed on the bottom of the drive box (2) by bolts. (4) The bottom end passes through the air ring (10) to the bottom of the mounting plate (9). A set of pins (401) is fixedly installed on the bottom end of the shaft (4) corresponding to the connection position of the mounting plate (9). The mounting plate (9) corresponding to the pin (401) has a fitting hole (901) and a through hole (902). The bottom end of the shaft (4) is tightly embedded in the fitting hole (901) and the through hole (902) through the pin (401).

3. The silicon steel sheet stacking device for a new energy vehicle motor according to claim 2, characterized in that: An air inlet pipe (11) is fixedly connected to the fixed part (1002) via an air pipe connector. An exhaust pipe (12) is fixedly connected between the rotating part (1001) and the hollow ring (8) via an air pipe connector. Several silicone suction nozzles are also fixedly installed at equal intervals at the bottom of the hollow ring (8). All of the silicone suction nozzles are connected to the exhaust pipe (12) through the inside of the hollow ring (8).

4. The silicon steel sheet stacking device for a new energy vehicle motor according to claim 3, characterized in that: The hollow ring (8) has a silicon steel sheet body (13) adsorbed by a number of silicone suction nozzles under negative pressure at its bottom. The silicon steel sheet body (13) has a number of winding openings (1301) at equal intervals. The gear (5) has a number of tooth tips (501). The number of winding openings (1301) is multiples of the number of tooth tips (501), and the midpoint of the arc between a number of adjacent winding openings (1301) corresponds to the position of the tooth tips (501).

5. The silicon steel sheet stacking device for a new energy vehicle motor according to claim 1, characterized in that: The column-type mobile lifting machine (14) includes a horizontal arm (1401), a horizontal rail is fixedly installed inside the horizontal arm (1401), and a trolley (1402) is slidably connected to the bottom of the horizontal rail. The bottom of the trolley (1402) is fixedly installed to the top of the cover plate (7) through a connecting column (1403).

6. The silicon steel sheet stacking device for a new energy vehicle motor according to claim 4, characterized in that: The stacking plate base (15) is located on one side of the column-type mobile lifting machine (14), and the stacking plate base (15) includes a tray part (1501). Several inner support columns (1502) are fixedly installed on the top of the tray part (1501), and the diameter of the circular line between the outer walls of the several inner support columns (1502) is equal to the inner edge diameter of the silicon steel sheet body (13).

7. The silicon steel sheet stacking device for a new energy vehicle motor according to claim 6, characterized in that: A vertical plate (1503) is fixedly welded to one side of the pallet (1501), and a raised edge plate (1504) is fixedly welded to one side of the top of the vertical plate (1503). The height of the raised edge plate (1504) is greater than the height of the inner support column (1502).

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