Pre-pressing mechanism for lamination of motor punching sheet

Abstract

The utility model discloses a pre-pressing mechanism for motor punching sheet lamination, which relates to the field of motor punching sheets and comprises an operation table, a placing seat is arranged at the upper end of the operation table, a placing groove is arranged in the placing seat, a punching sheet main body is arranged in the placing groove, an arc-shaped block is fixedly connected to the lower end of the operation table, and the arc-shaped block is fixedly connected to the lower end of the operation table. A rotating sleeve is arranged in the arc-shaped block, and the outer side of the rotating sleeve is fixedly connected with a limiting ring. Compared with the prior art, the punching sheet positioning device has the advantages that the height of the positioning column can be adjusted through the rotating sleeve, the lead screw, the sliding rod, the arc-shaped block and the like, punching sheet bodies of different numbers can be positioned, shaking is effectively avoided, and meanwhile the overall pressing quality can be improved; and the pressing head can be quickly assembled and disassembled through the pull rod, the movable plate, the spring, the fixed rod, the mounting plate and other assemblies, so that the pressing head can be replaced when being seriously abraded, and meanwhile, the replacement difficulty can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of motor laminations, and in particular to a pre-pressing mechanism for stacking motor laminations. Background Technology

[0002] The lamination pre-compression mechanism is a key component in motor manufacturing. During motor production, a large number of laminations are stacked to form the stator or rotor core. The pre-compression mechanism ensures a tight and neat stack. It mainly consists of a pressure plate, positioning posts, and a drive component. During operation, the laminations are fitted onto the positioning posts, and the drive component applies force, causing the pressure plate to move according to a set pressure and direction, uniformly applying pressure to the stacked laminations and effectively eliminating gaps and misalignments. This pre-compression process significantly improves the overall performance of the core, reduces vibration and noise during motor operation, and ensures stable and efficient motor operation.

[0003] However, in the existing technology, since the height of the positioning post is relatively fixed, when different numbers of punches need to be pressed, the upper punches may exceed the height of the positioning post, thus losing their limiting function and causing wobbling, ultimately affecting the overall pressing quality. Utility Model Content

[0004] The purpose of this invention is to provide a pre-pressing mechanism for stacked laminations of motor laminations, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pre-pressing mechanism for stacking motor laminations, comprising an operating table, a placement seat at the upper end of the operating table, a placement groove inside the placement seat, a lamination body inside the placement groove, an arc-shaped block fixedly connected to the lower end of the operating table, a rotating sleeve inside the arc-shaped block, a limit ring fixedly connected to the outer side of the rotating sleeve, a lead screw inside the rotating sleeve, a positioning post fixedly connected to the upper end of the lead screw, and a sliding rod fixedly connected to the lower edge of the positioning post.

[0006] Preferably, a support rod is fixedly connected to the upper edge of the operating table, a top plate is fixedly connected to the upper end of the support rod, and an electric push rod is provided at the lower end of the top plate away from the support rod.

[0007] Preferably, a fixing plate is fixedly connected to the lower end of the electric push rod, a fixing seat is fixedly connected to the lower end of the fixing plate, an installation groove is provided inside the fixing seat, an installation plate is provided inside the installation groove, a locking hole is provided inside the installation plate, a connecting block is fixedly connected to the lower end of the installation plate, and a pressure block is fixedly connected to the lower end of the connecting block.

[0008] Preferably, a connecting frame is fixedly connected to the upper end of the fixed plate, a sliding groove is provided on the left side of the connecting frame, a slider is slidably connected inside the sliding groove, a movable plate is fixedly connected to one side of the slider, a pull rod is fixedly connected to the upper end of the movable plate, a spring is sleeved on the outside of the pull rod, and a fixed rod is fixedly connected to the lower end of the movable plate.

[0009] Preferably, the rotating sleeve is rotatably connected to the arc-shaped block via a limiting ring.

[0010] Preferably, the number of sliders is two sets, and they are symmetrically arranged about the center line of the moving plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] By rotating the rotating sleeve, the lead screw moves upward under the action of its internal threads. The lead screw drives the positioning pin to move together, thus raising the sleeve. At this point, the operator can place a large number of stamped pieces onto the outside of the positioning pin in sequence, ready to be pressed. Similarly, by rotating the sleeve in the opposite direction, the lead screw and positioning pin move in the opposite direction and return to their original height, pressing a small number of stamped pieces. In addition, the two sets of limit rings can improve the stability of the rotating sleeve during rotation, while the sliding rod can prevent the positioning pin from reversing, which would affect the pressing accuracy. The height of the positioning pin can be adjusted by components such as the rotating sleeve, lead screw, sliding rod, and arc block, thereby enabling the positioning of different numbers of stamped pieces, effectively preventing shaking, and improving the overall pressing quality.

[0013] By pulling the sliding rod, the sliding plate moves upward and compresses the spring. During this process, the fixing rod disengages from the inside of the locking hole, releasing the restriction on the mounting plate. Pulling the mounting plate to one side causes it to slide out from the inside of the fixing seat, thus disassembling the pressure head. Similarly, during installation, the mounting plate is slid into the mounting groove. Once it reaches the appropriate position, the spring rebounds and pushes the sliding plate to move in the opposite direction. The fixing rod passes through the locking hole again, securing the mounting plate and completing the installation of the pressure head. The components, including the pull rod, sliding plate, spring, fixing rod, and mounting plate, allow for quick installation and removal of the pressure head, enabling replacement when severe wear occurs and reducing the difficulty of replacement. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the internal structure of the placement base of this utility model.

[0016] Figure 3 This is a schematic diagram of the arc-shaped block structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the fixing plate structure of this utility model.

[0018] Figure 5 This is a schematic diagram of the connecting frame structure of this utility model.

[0019] Figure 6 This is a schematic diagram of the pressure head structure of this utility model.

[0020] In the diagram: 1. Operating table; 2. Placement seat; 3. Placement slot; 4. Stamping body; 5. Arc block; 6. Rotary sleeve; 7. Limiting ring; 8. Lead screw; 9. Positioning column; 10. Support rod; 11. Top plate; 12. Electric push rod; 13. Fixing plate; 14. Fixing seat; 15. Mounting slot; 16. Mounting plate; 17. Snap hole; 18. Connecting block; 19. Pressure block; 20. Connecting frame; 21. Slide groove; 22. Slider; 23. Pull rod; 24. Spring; 25. Fixing rod; 26. Moving plate; 27. Slide rod. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other. Example 1

[0022] Please see Figures 1-6 This utility model provides a technical solution: a pre-pressing mechanism for stacking motor laminations, including an operating table 1, a placement seat 2 at the upper end of the operating table 1, a placement groove 3 inside the placement seat 2, a lamination body 4 inside the placement groove 3, an arc-shaped block 5 fixedly connected to the lower end of the operating table 1, a rotating sleeve 6 inside the arc-shaped block 5, a limiting ring 7 fixedly connected to the outer side of the rotating sleeve 6, a lead screw 8 inside the rotating sleeve 6, a positioning post 9 fixedly connected to the upper end of the lead screw 8, a sliding rod 27 fixedly connected to the lower edge of the positioning post 9, and the rotating sleeve 6 being rotatably connected to the arc-shaped block 5 through the limiting ring 7.

[0023] Specifically, rotating the rotating sleeve 6 causes the lead screw 8 to move upward under the action of its internal threads. The lead screw 8 then moves the positioning pin 9 together, raising it. At this point, the operator can place a large number of stamped bodies 4 onto the outside of the positioning pin 9 in sequence, ready to press them. Similarly, rotating the sleeve in the opposite direction causes the lead screw 8 and the positioning pin to move in the opposite direction and return to their original height, pressing a small number of stamped bodies 4. In addition, the two sets of limiting rings 7 can improve the stability of the rotating sleeve 6 during rotation, while the sliding rod 27 can prevent the positioning pin 9 from reversing, which would affect the pressing accuracy. The height of the positioning pin 9 can be adjusted through components such as the rotating sleeve 6, lead screw 8, sliding rod 27, and arc block 5, thereby enabling the positioning of different numbers of stamped bodies 4, effectively preventing shaking, and also improving the overall pressing quality. Example 2

[0024] Please see Figures 1-6 This utility model provides a technical solution: a pre-pressing mechanism for stacking laminations of motor blanks. A support rod 10 is fixedly connected to the upper edge of the operating table 1. A top plate 11 is fixedly connected to the upper end of the support rod 10. An electric push rod 12 is provided at the lower end of the top plate 11 away from the support rod 10. A fixing plate 13 is fixedly connected to the lower end of the electric push rod 12. A fixing seat 14 is fixedly connected to the lower end of the fixing plate 13. A mounting groove 15 is provided inside the fixing seat 14. A mounting plate 16 is provided inside the mounting groove 15. A locking hole 17 is provided inside the mounting plate 16. A connecting block 18 is fixedly connected to the lower end of the mounting plate 16, and a pressure block 19 is fixedly connected to the lower end of the connecting block 18. A connecting frame 20 is fixedly connected to the upper end of the fixing plate 13. A sliding groove 21 is provided on the left side of the connecting frame 20. A slider 22 is slidably connected inside the sliding groove 21. A movable plate 26 is fixedly connected to one side of the slider 22. A pull rod 23 is fixedly connected to the upper end of the movable plate 26. A spring 24 is sleeved on the outside of the pull rod 23. A fixing rod 25 is fixedly connected to the lower end of the movable plate 26. There are two sets of sliders 22, and they are symmetrically arranged about the center line of the movable plate 26.

[0025] Specifically, pulling the slide bar 27 causes the moving plate 26 to move upward and compress the spring 24. During this process, the fixing rod 25 disengages from the inside of the locking hole 17, releasing the restriction on the mounting plate 16. The mounting plate 16 is then pulled to one side, sliding out from the inside of the fixing seat 14, thus disassembling the pressure head. Similarly, during installation, the mounting plate 16 is slid into the mounting groove 15. Once it reaches the appropriate position, the spring 24 rebounds and pushes the moving plate 26 to move in the opposite direction. The fixing rod 25 passes through the locking hole 17 again, thus fixing the mounting plate 16, thereby completing the installation of the pressure head. The components such as the pull rod 23, moving plate 26, spring 24, fixing rod 25, and mounting plate 16 enable quick installation and removal of the pressure head, facilitating replacement when severe wear occurs and reducing the difficulty of replacement.

[0026] Working Principle: During assembly and use, the pre-clamping mechanism for the motor lamination stacking first adjusts the height of the positioning pin 9 according to the number of motor laminations. Specifically, rotating the rotating sleeve 6 causes the lead screw 8 to move upwards under the action of its internal threads. The lead screw 8 then moves the positioning pin 9, raising it. At this point, the operator can sequentially place a large number of lamination bodies 4 onto the outside of the positioning pin 9, preparing for clamping. Similarly, rotating the sleeve in the opposite direction causes the lead screw 8 and positioning pin to move in the opposite direction and return to their original height, clamping a small number of lamination bodies 4. Furthermore, the two sets of limiting rings 7 improve the stability of the rotating sleeve 6 during rotation, while the sliding rod 27 prevents the positioning pin 9 from reversing, affecting the clamping accuracy. The height of the positioning pin 9 can be adjusted through components such as the rotating sleeve 6, lead screw 8, sliding rod 27, and arc-shaped block 5, thereby enabling the positioning of different numbers of lamination bodies 4, effectively preventing wobbling and improving the overall clamping quality. Then, the electric push rod 12 is activated. Under the action of the electric push rod 12, the fixing plate 13 and the fixing seat 14 move downwards, and the pressure head presses against the punch body 4. When it is necessary to replace the worn pressure head, the slide rod 27 is pulled. The slide rod 27 drives the moving plate 26 to move upwards and compresses the spring 24. During this process, the fixing rod 25 disengages from the inside of the locking hole 17, releasing the restriction on the mounting plate 16. The mounting plate 16 is pulled to one side, and the mounting plate 16 slides out from the inside of the fixing seat 14, realizing the disassembly of the pressure head. Similarly, during installation, the mounting plate 16 is slid into the interior of the mounting groove 15. Once it reaches the appropriate position, the spring 24 rebounds and pushes the moving plate 26 to move in the opposite direction. The fixing rod 25 passes through the locking hole 17 again to fix the mounting plate 16, thus completing the installation of the pressure head. The pressure head can be quickly installed and removed through components such as the pull rod 23, the moving plate 26, the spring 24, the fixing rod 25, and the mounting plate 16, so that it can be replaced when severe wear occurs, and the difficulty of replacement can also be reduced.

[0027] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A pre-pressing mechanism for motor lamination stacks, comprising an operating table (1), characterized in that: The upper end of the operating platform (1) is provided with a placing seat (2), the inside of the placing seat (2) is provided with a placing groove (3), the inside of the placing groove (3) is provided with a punch main body (4), the lower end of the operating platform (1) is fixedly connected with an arc-shaped block (5), the inside of the arc-shaped block (5) is provided with a rotating sleeve (6), the outside of the rotating sleeve (6) is fixedly connected with a limiting ring (7), the inside of the rotating sleeve (6) is provided with a lead screw (8), the upper end of the lead screw (8) is fixedly connected with a positioning column (9), the lower end edge of the positioning column (9) is fixedly connected with a sliding rod (27).

2. A mechanism for pre-pressing motor lamination stacks as claimed in claim 1, wherein: The upper end edge of the operating platform (1) is fixedly connected with a supporting rod (10), the upper end of the supporting rod (10) is fixedly connected with a top plate (11), the lower end of the top plate (11) is provided with an electric push rod (12) away from the supporting rod (10).

3. A pre-pressing mechanism for motor lamination stacks as claimed in claim 2, characterized in that: The lower end of the electric push rod (12) is fixedly connected with a fixed plate (13), the lower end of the fixed plate (13) is fixedly connected with a fixed seat (14), the inside of the fixed seat (14) is provided with an installation groove (15), the inside of the installation groove (15) is provided with an installation plate (16), the inside of the installation plate (16) is provided with a clamping hole (17), the lower end of the installation plate (16) is fixedly connected with a connecting block (18), the lower end of the connecting block (18) is fixedly connected with a pressing block (19).

4. A mechanism for pre-pressing a stack of motor lamination sheets as claimed in claim 3, wherein: The upper end of the fixed plate (13) is fixedly connected with a connecting frame (20), the left side of the connecting frame (20) is provided with a sliding groove (21), the inside of the sliding groove (21) is slidably connected with a sliding block (22), one side of the sliding block (22) is fixedly connected with a moving plate (26), the upper end of the moving plate (26) is fixedly connected with a pull rod (23), the outside of the pull rod (23) is sleeved with a spring (24), the lower end of the moving plate (26) is fixedly connected with a fixed rod (25).

5. A mechanism for pre-pressing motor lamination stacks as claimed in claim 1, wherein: The rotating sleeve (6) is rotatably connected with the arc-shaped block (5) through the limiting ring (7).

6. A mechanism for pre-pressing a stack of motor lamination sheets as claimed in claim 4, wherein: The number of the sliding blocks (22) is two groups, and they are symmetrically arranged about the center line of the moving plate (26).

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