Multi-angle motor fan cover punching device
By designing a multi-angle motor fan cover punching device, and using components such as hydraulic rods and electric push rods to fix and flexibly adjust the motor fan cover, the problem of not being able to punch the bottom and side walls of the motor fan cover at the same time in the existing technology is solved, thus improving processing efficiency and hole accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU YUANDONG ELECTRIC MOTOR MFG
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-23
AI Technical Summary
Existing technology cannot simultaneously and efficiently punch holes in the bottom and side walls of the motor fan cover, resulting in low processing efficiency and extended cycle time.
A multi-angle motor fan cover punching device was designed, which combines components such as hydraulic rods, electric push rods, one-way lead screws, two-way lead screws, threaded brackets, and rubber pads to achieve the fixing and flexible adjustment of the motor fan cover, and can punch and drill holes in the bottom and side walls at the same time.
This improved the processing efficiency of the motor fan cover, shortened the processing cycle, ensured the accuracy of the holes and the consistency of the spacing between the mounting holes, and enhanced the overall processing quality of the motor fan cover.
Smart Images

Figure CN224390028U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor fan cover punching technology, specifically a multi-angle motor fan cover punching device. Background Technology
[0002] With the rapid development of the motor manufacturing industry, the quality and efficiency of the punching of motor shrouds, as key components for motor heat dissipation, directly affect the heat dissipation performance and service life of motors.
[0003] As an important component of the motor, the motor fan cover has multiple heat dissipation holes to improve the motor's heat dissipation effect. Simultaneously, to connect with the motor housing, the sidewalls of the motor fan cover also have mounting holes. However, these two types of holes need to be drilled in batches using two different devices. For example, the prior art discloses a generator fan cover drilling device with application number CN201921148170.9. While this device provides good fixation for the generator fan cover and effectively improves drilling efficiency and quality, it can only drill holes in the bottom of the motor fan cover and cannot drill holes in its sidewalls. Furthermore, the prior art discloses a multi-angle motor fan cover punching device with application number CN202320907540.2, but this device can only drill holes in the sidewalls and cannot drill holes in the bottom of the motor fan cover, thus affecting the processing efficiency of the motor fan cover and extending its processing cycle. Utility Model Content
[0004] Therefore, the purpose of this utility model is to provide a multi-angle motor fan cover punching device to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-angle motor fan cover punching device, comprising a base, a support frame and a mounting cylinder on one side of the top of the base, a hydraulic rod mounted on the top of the support frame, and a stamping plate connected to the output end of the hydraulic rod, a one-way lead screw mounted inside the mounting cylinder, a threaded bracket threaded onto the outer surface of the one-way lead screw, an electric push rod mounted on one side of the threaded bracket, and a motor housing connected to the output end of the electric push rod, a second motor mounted inside the motor housing, and a drill bit connected to the output end of the second motor, with a rotating connection at the top center of the base. A rotating drum is connected to a base. A support plate is fixed to the top of the rotating drum. A fixed cylinder is fixed to the top of the support plate. A tray is fixed to the top of the fixed cylinder. A bidirectional lead screw extending into the fixed cylinder is installed inside the rotating drum. A threaded block is threaded to the outer surface of the bidirectional lead screw. A connecting rod is hinged to the outer surface of the threaded block. A connecting plate is hinged to one end of the connecting rod. A rubber pad is fixed to one side of the connecting plate. A grooved wheel is fixed to the outer surface of the rotating drum. A rotating shaft and a first motor are installed inside the base. A worm gear and a rotating disk are fixed to the outer surface of the rotating shaft. A worm is connected to the output end of the first motor.
[0006] Furthermore, a control panel is installed on the other side of the top of the base, and the first motor, the second motor, the hydraulic rod, and the electric push rod are all electrically connected to the control panel.
[0007] By adopting the above technical solution, during operation, commands are sent to the first motor, the second motor, the hydraulic rod, and the electric push rod via the control panel to control components such as the one-way lead screw and the electric push rod, thereby achieving the purpose of drilling holes in the bottom and side walls of the motor fan cover.
[0008] Furthermore, the rubber pad is provided in four sets, the four sets of rubber pads are arc-shaped, and the outer surface of the rubber pad is provided with anti-touch grooves.
[0009] By adopting the above technical solution, the friction between the rubber pads and the inner wall of the motor fan cover is increased through the setting of four sets of arc-shaped rubber pads, making the motor fan cover more secure. The anti-contact groove can prevent the rubber pads from being damaged when the drill bit comes into contact with them during drilling.
[0010] Furthermore, a telescopic rod is fixed to one side of the threaded frame, and one end of the telescopic rod is fixed to the motor housing.
[0011] By adopting the above technical solution, the displacement of the motor box can be more stable under the action of the telescopic rod, thus achieving the purpose of supporting the motor box.
[0012] Furthermore, the bottom of the support plate is inlaid with multiple balls, and the multiple balls are in contact with the top of the base.
[0013] By adopting the above technical solution, this design utilizes the rolling friction characteristics of the balls to make the rotation of the fixed cylinder more stable, and can also share the punching pressure during punching.
[0014] Furthermore, the worm and worm wheel mesh with each other, and the outer surfaces of the worm, worm wheel, one-way lead screw, and two-way lead screw are coated with lubricating oil.
[0015] By adopting the above technical solution, the rotation of the worm can drive the rotation of the worm wheel, which in turn causes the rotating shaft to rotate. With the help of lubricating oil, the friction during meshing can be reduced, thus preventing rust.
[0016] Furthermore, the grooved wheel is provided with four sets of actuating grooves, and a set of round pins is fixed on one side of the top of the rotating disk, and the ratio of the grooved wheel's movement period to its dwell period is 1:3.
[0017] By adopting the above technical solution, when the rotating disk rotates, the pin will rotate one full turn. With the cooperation of the pin, the actuating groove can drive the groove wheel to rotate one-quarter turn, so that the position of the motor fan cover is consistent each time. This makes the processed mounting holes more precise and facilitates subsequent assembly.
[0018] Furthermore, a knob is fixed to both the bottom end of the bidirectional lead screw and the top end of the unidirectional lead screw.
[0019] By adopting the above technical solution, the rotation makes it easier for workers to rotate the bidirectional and unidirectional lead screws.
[0020] Furthermore, the bottom of the stamping plate is provided with several sets of stamping blocks, and the top of the tray is provided with several sets of stamping grooves.
[0021] By adopting the above technical solution, when the stamping plate presses downwards, the punching and stamping groove can punch out heat dissipation holes at the bottom of the motor fan.
[0022] In summary, the present invention has the following main advantages:
[0023] 1. This utility model comprises a hydraulic rod, a tray, a stamping plate, a double-acting screw, threaded blocks, a connecting rod, a connecting plate, and a rubber pad. When fixing the motor fan cover, the operator places the motor fan cover on the tray, then rotates the double-acting screw. The rotation of the double-acting screw causes the two sets of threaded blocks to shift in opposite directions, thereby causing the connecting rod to push the connecting plate and the rubber pad to expand. This allows the rubber pad to press against the side wall of the motor fan cover, thus fixing the motor fan cover. Then, the operator activates the hydraulic rod, which pushes the stamping plate to stamp the bottom of the motor fan cover, thereby stamping the heat dissipation holes of the motor fan cover.
[0024] 2. This utility model comprises a one-way lead screw, a threaded bracket, an electric push rod, a motor, a drill bit, a first motor, a second motor, a rotating disk, a pin, a grooved wheel, a shifting groove, and a rotating drum. When drilling holes in the side wall of the motor shroud, the operator first rotates the one-way lead screw, thereby displacing the threaded bracket on the lead screw to adjust the drill bit height, facilitating drilling at different heights in the side wall of the motor shroud. Then, the operator activates the electric push rod, which pushes the drill bit towards the motor shroud. Simultaneously, the first motor is activated, driving the drill bit to rotate and drill holes in the motor shroud. When it is necessary to adjust the drilling position on the side wall, the operator... The second motor is started by the operator. The rotation of the second motor causes the worm gear to rotate, which in turn causes the rotating shaft to rotate the rotating disk and the pin one revolution. After the pin rotates, it works with the actuating groove to drive the grooved wheel to rotate a quarter revolution, which in turn causes the motor fan cover to rotate a quarter revolution. This makes it easier to drill holes in other parts of the motor fan cover. With the above-mentioned settings, this utility model can not only drill holes in the side wall of the motor fan cover, but also flexibly adjust the drilling height. At the same time, the cooperation of the grooved wheel, rotating disk and pin can fix the angle of rotation of the motor fan cover each time, thereby fixing the spacing of the mounting holes and improving the drilling quality of the mounting holes.
[0025] 3. Through the above-mentioned design, this utility model can not only punch holes at the bottom of the motor fan cover, but also drill holes in the side wall of the motor fan cover, which greatly improves the processing efficiency of the motor fan cover and shortens the processing cycle. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the structure of this utility model;
[0027] Figure 2 This is a schematic diagram of the cross-sectional structure of the base of this utility model;
[0028] Figure 3 This is a schematic diagram of the cross-sectional structure of the mounting cylinder of this utility model;
[0029] Figure 4 This is a schematic diagram of the bidirectional lead screw structure of this utility model;
[0030] Figure 5 This is a schematic diagram of the support disk structure of this utility model;
[0031] Figure 6 This is a schematic diagram of the grooved wheel structure of this utility model.
[0032] In the diagram: 1. Base; 2. Support frame; 3. Hydraulic rod; 4. Stamping plate; 5. Mounting cylinder; 6. Control panel; 7. Rotary drum; 8. Rotating shaft; 9. First motor; 10. Fixed cylinder; 11. Tray; 12. Grooved wheel; 13. Rotary disk; 14. Worm gear; 15. Worm wheel; 16. Threaded frame; 17. Electric push rod; 18. Telescopic rod; 19. Motor box; 20. Second motor; 21. Drill bit; 22. Double-acting screw; 23. Threaded block; 24. Connecting rod; 25. One-way screw; 26. Connecting plate; 27. Rubber pad; 28. Anti-collision groove; 29. Support plate; 30. Ball bearing; 31. Actuating groove; 32. Round pin. Detailed Implementation
[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0034] The embodiments of this utility model will be described below based on its overall structure.
[0035] Example 1: A multi-angle motor fan cover punching device, such as... Figures 1-6As shown, the device includes a base 1, with a support frame 2 and a mounting cylinder 5 on one side of the top of the base 1. A hydraulic rod 3 is mounted on the top of the support frame 2, and the output end of the hydraulic rod 3 is connected to a stamping plate 4. A one-way lead screw 25 is installed inside the mounting cylinder 5, and a threaded bracket 16 is threaded onto the outer surface of the one-way lead screw 25. An electric push rod 17 is mounted on one side of the threaded bracket 16, and the output end of the electric push rod 17 is connected to a motor housing 19. A second motor 20 is installed inside the motor housing 19, and the output end of the second motor 20 is connected to a drill bit 21. A rotating cylinder 7 is rotatably connected to the top center of the base 1, and a support plate 29 is fixed to the top of the rotating cylinder 7. Multiple balls 30 are embedded in the bottom of the support plate 29, and the multiple balls 30 are in contact with the top of the base 1. This design utilizes the rolling friction characteristics of the balls 30 to make the rotation of the fixed cylinder 10 more stable, and can also distribute the workload during punching. The stamping pressure is as follows: a fixed cylinder 10 is fixed to the top of the support plate 29, a tray 11 is fixed to the top of the fixed cylinder 10, a number of stamping blocks are provided at the bottom of the stamping plate 4, and a number of stamping grooves are opened on the top of the tray 11. When the stamping plate 4 presses down, the punching holes and stamping grooves can punch out heat dissipation holes at the bottom of the motor fan. A bidirectional lead screw 22 extending into the fixed cylinder 10 is installed inside the rotating cylinder 7. A threaded block 23 is threaded to the outer surface of the bidirectional lead screw 22, and a connecting rod 24 is hinged to the outer surface of the threaded block 23. A connecting plate 26 is hinged to one end of the connecting rod 24. A rubber pad 27 is fixed to one side of the connecting plate 26. A grooved wheel 12 is fixed to the outer surface of the rotating cylinder 7. A rotating shaft 8 and a first motor 9 are installed inside the base 1. A worm gear 15 and a rotating plate 13 are fixed to the outer surface of the rotating shaft 8. A worm 14 is connected to the output end of the first motor 9.
[0036] See Figure 1 In the above embodiment, a control panel 6 is installed on the other side of the top of the base 1, and the first motor 9, the second motor 20, the hydraulic rod 3 and the electric push rod 17 are all electrically connected to the control panel 6. During operation, the control panel 6 sends commands to the first motor 9, the second motor 20, the hydraulic rod 3 and the electric push rod 17 to control components such as the one-way lead screw 25 and the electric push rod 17, so as to achieve the purpose of drilling holes in the bottom and side wall of the motor fan cover.
[0037] See Figures 1-3 In the above embodiment, a telescopic rod 18 is fixed on one side of the threaded frame 16, and one end of the telescopic rod 18 is fixed to the motor housing 19. Under the action of the telescopic rod 18, the displacement of the motor housing 19 can be more stable, thus achieving the purpose of supporting the motor housing 19.
[0038] See Figure 1 , Figure 2 and Figure 6In the above embodiment, the worm 14 and the worm wheel 15 mesh with each other, and the outer surfaces of the worm 14, the worm wheel 15, the one-way lead screw 25 and the two-way lead screw 22 are coated with lubricating oil. The rotation of the worm 14 can drive the worm wheel 15 to rotate, thereby causing the rotating shaft 8 to rotate. Under the action of the lubricating oil, the friction during meshing can be reduced, which can prevent rusting.
[0039] See Figure 1 , Figure 2 and Figure 6 In the above embodiment, the grooved wheel 12 is provided with four sets of actuating grooves 31, and a set of round pins 32 are fixed on one side of the top of the rotating disk 13. The ratio of the movement cycle to the dwell cycle of the grooved wheel 12 is 1:3. When the rotating disk 13 rotates, the round pins 32 will rotate one revolution. With the cooperation of the round pins 32, the actuating grooves 31 can drive the grooved wheel 12 to rotate one-quarter revolution, so that the position of the motor fan cover is consistent each time. This makes the processed mounting holes more accurate and facilitates subsequent assembly.
[0040] See Figures 1-3 In the above embodiment, a knob is fixed at the bottom end of the bidirectional lead screw 22 and the top end of the unidirectional lead screw 25. The rotation makes it easier for the operator to rotate the bidirectional lead screw 22 and the unidirectional lead screw 25.
[0041] Example 2: To ensure a more stable fixation of the motor cover and prevent damage to the drill bit or rubber pad, Example 2 is an improvement upon Example 1. (See attached document.) Figure 2 and Figure 4 The rubber pads 27 are provided in four sets, each set being arc-shaped. The outer surface of each rubber pad 27 has an anti-contact groove 28. The arrangement of the four sets of arc-shaped rubber pads 27 increases the friction between the rubber pads 27 and the inner wall of the motor fan cover, making the motor fan cover more securely fixed. The anti-contact groove 28 prevents damage to the rubber pads 27 from contact with the drill bit 21 during drilling.
[0042] The implementation principle of this utility model is as follows: During operation, the operator first places the motor fan cover on the tray 11; then rotates the bidirectional lead screw 22, causing the threaded block 23 to move towards each other on the outer surface of the bidirectional lead screw 22, driving the connecting rod 24 to push the connecting plate 26, allowing the four sets of arc-shaped rubber pads 27 to expand and press against the side wall of the motor fan cover, thus completing the fixation; then, the hydraulic rod 3 is activated through the control panel 6, and the hydraulic rod 3 pushes the stamping plate 4, using the stamping block at the bottom of the stamping plate 4 in conjunction with the stamping groove at the top of the tray 11 to stamp out heat dissipation holes at the bottom of the motor fan cover. After the bottom stamping is completed, the height of the threaded bracket 16 on the one-way screw 25 is adjusted by rotating the one-way screw 25, which drives the electric push rod 17 and the motor box 19 to move, thereby adjusting the height of the drill bit 21. The electric push rod 17 is started to push the drill bit 21 closer to the motor fan cover, and at the same time the first motor 9 is started to drive the drill bit 21 to rotate for side wall drilling. When it is necessary to adjust the drilling position, the second motor 20 is started through the control panel 6. The second motor 20 drives the worm gear 14 to rotate, and the worm gear 14 meshes with the worm wheel 15 to make the rotating shaft 8 rotate, which in turn drives the rotating disk 13 and the round pin 32 to rotate one revolution. The round pin 32 cooperates with the actuating groove 31 on the grooved wheel 12 to drive the grooved wheel 12 to rotate a quarter revolution, so that the rotating drum 7, the support disk 29 and the motor fan cover fixed on it rotate synchronously, which facilitates drilling holes in other positions of the motor fan cover.
[0043] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A multi-angle motor fan cover punching device, comprising a base (1), characterized in that: The base (1) has a support frame (2) and a mounting cylinder (5) on one side of its top. A hydraulic rod (3) is installed on the top of the support frame (2), and the output end of the hydraulic rod (3) is connected to a stamping plate (4). A one-way screw (25) is installed inside the mounting cylinder (5). A threaded bracket (16) is threaded onto the outer surface of the one-way screw (25). An electric push rod (17) is installed on one side of the threaded bracket (16), and the output end of the electric push rod (17) is connected to a motor box (19). A second motor (20) is installed inside the motor box (19), and the output end of the second motor (20) is connected to a drill bit (21). A rotating cylinder (7) is rotatably connected to the middle of the top of the base (1). A support plate (29) is fixed at the top of the rotating cylinder (7). A fixed cylinder (10) is fixed at the top, and a tray (11) is fixed at the top of the fixed cylinder (10). A bidirectional lead screw (22) extending into the fixed cylinder (10) is installed inside the rotating cylinder (7). A threaded block (23) is threaded on the outer surface of the bidirectional lead screw (22), and a connecting rod (24) is hinged on the outer surface of the threaded block (23). A connecting plate (26) is hinged at one end of the connecting rod (24). A rubber pad (27) is fixed on one side of the connecting plate (26). A grooved wheel (12) is fixed on the outer surface of the rotating cylinder (7). A rotating shaft (8) and a first motor (9) are installed inside the base (1). A worm gear (15) and a rotating disk (13) are fixed on the outer surface of the rotating shaft (8). A worm (14) is connected to the output end of the first motor (9).
2. The multi-angle motor fan cover punching device according to claim 1, characterized in that: A control panel (6) is installed on the other side of the top of the base (1), and the first motor (9), the second motor (20), the hydraulic rod (3) and the electric push rod (17) are all electrically connected to the control panel (6).
3. The multi-angle motor fan cover punching device according to claim 1, characterized in that: The rubber pad (27) is provided in four sets, and the four sets of rubber pads (27) are arc-shaped, and the outer surface of the rubber pad (27) is provided with anti-touch grooves (28).
4. The multi-angle motor fan cover punching device according to claim 1, characterized in that: A telescopic rod (18) is fixed on one side of the threaded frame (16), and one end of the telescopic rod (18) is fixed to the motor box (19).
5. The multi-angle motor fan cover punching device according to claim 1, characterized in that: The bottom of the support plate (29) is inlaid with a plurality of balls (30), and the plurality of balls (30) are in contact with the top of the base (1).
6. The multi-angle motor fan cover punching device according to claim 1, characterized in that: The worm (14) and worm wheel (15) mesh with each other, and the outer surfaces of the worm (14), worm wheel (15), one-way lead screw (25) and two-way lead screw (22) are coated with lubricating oil.
7. The multi-angle motor fan cover punching device according to claim 1, characterized in that: The grooved wheel (12) has four sets of actuating grooves (31), and a set of round pins (32) is fixed on one side of the top of the rotating disk (13). The ratio of the movement cycle to the dwell cycle of the grooved wheel (12) is 1:
3.
8. The multi-angle motor fan cover punching device according to claim 1, characterized in that: A knob is fixed at the bottom of the bidirectional lead screw (22) and the top of the unidirectional lead screw (25).
9. The multi-angle motor fan cover punching device according to claim 1, characterized in that: The bottom of the stamping plate (4) is provided with several sets of stamping blocks, and the top of the tray (11) is provided with several sets of stamping grooves.