Curing equipment of magnetic steel sheet and rotor cup for external rotor motor

Abstract

The utility model discloses curing equipment for a magnetic steel sheet and a rotor cup for an external rotor motor, and the equipment comprises a pedestal, the pedestal is provided with an abutting member which slides along the radial direction of the rotor cup and forms abutting cooperation with the magnetic steel sheet, and the pedestal is provided with a driving unit which is used for driving the abutting member to slide. According to the invention, the design that the cylinder drives the pushing element to push the abutting member is adopted, and the abutting member and the magnetic steel sheet form abutting cooperation, so that the rapid curing of the structural adhesive between the magnetic steel sheet and the rotor cup is realized, the curing time is greatly shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical equipment, and in particular to a curing device for magnetic steel sheets and rotor cups for an outer rotor motor. Background Art

[0002] At present, the outer rotor motor is a device that converts electrical energy into mechanical energy. Its basic structure consists of a rotor and a stator, of which the rotor is an outer rotor structure. When the DC current passes through the stator to generate a rotating magnetic field, the permanent magnet in the rotor rotates under the action of the magnetic field, so that the mechanical energy of the rotor can be output. The outer rotor DC motor has the characteristics of small size, high power and stable torque.

[0003] In the related technology, the rotor includes a rotor cup, a center shaft, a sleeve, a magnetic steel sheet, an impeller and a cup bottom; there is an assembly hole on the cup bottom; the magnetic steel sheet is bonded to the inner wall of the rotor cup by a special structural adhesive to make it more secure and prevent it from falling off during operation.

[0004] However, after bonding is completed, if there is no effective tension pressing between the rotor cup and the magnetic steel sheet for auxiliary reinforcement, it is necessary to wait for the structural adhesive to completely cure naturally before demolding, which will result in a long waiting time and low manufacturing efficiency. Utility Model Content

[0005] In order to solve the problem in the background art that the curing of magnetic steel sheets does not have effective tension-assisted reinforcement, resulting in low manufacturing efficiency, the present application provides a curing device for magnetic steel sheets and rotor cups for outer rotor motors.

[0006] The present application provides a curing device for magnetic steel sheets and rotor cups for an outer rotor motor, which adopts the following technical solution:

[0007] A curing device for magnetic steel sheets and rotor cups for outer rotor motors comprises a base, on which is provided an abutment piece which slides radially along the rotor cup and forms an abutment fit with the magnetic steel sheets, and on which is provided a driving unit for driving the abutment piece to slide.

[0008] By adopting the above technical solution, an abutment piece is arranged on the base, and the abutment piece is driven by the driving unit to slide back and forth along the radial direction of the rotor cup, thereby realizing the abutment fit between the magnetic steel sheet and the inner wall of the rotor cup. This structure is not only easy to operate, but also can ensure that the structural adhesive between the magnetic steel sheet and the rotor cup body is evenly distributed, accelerate the curing process of the structural adhesive, and there is no need to wait for a long time for the natural curing of the structural adhesive, thereby improving production efficiency.

[0009] Preferably, a guide mechanism is provided on the base, a guide slot is provided on the guide mechanism, and the abutment member and the guide slot form an embedded sliding fit.

[0010] By adopting the above technical solution and utilizing the guide groove on the guide mechanism, the accurate sliding and rapid positioning of the abutment are ensured, making the entire curing process faster and more efficient; this can not only improve the curing efficiency of a single product, but also realize continuous production and batch processing, further improving production efficiency.

[0011] Preferably, the driving unit comprises a cylinder fixed on a base, a piston rod of the cylinder is connected to a pushing element, the pushing element moves along the axial direction of the rotor cup, and the pushing element is provided with a first wedge-shaped abutment portion for pushing the abutment to move radially.

[0012] By adopting the above technical solution, the first wedge-shaped abutment portion of the pushing element is designed to ensure that when the piston rod moves axially along the rotor cup under the drive of the cylinder, the abutment can be subjected to precise radial pushing force. This design specifically enables the abutment to accurately and stably form an abutment fit with the magnetic steel sheet, thereby ensuring the accuracy and quality of curing.

[0013] Preferably, a return spring is provided on the base, one end of the return spring abuts against the base, and the other end of the return spring abuts against a side of the abutment away from the pushing element.

[0014] By adopting the above technical solution and utilizing the characteristic of automatic elastic reset of the spring, the operator does not need to adjust the position of the abutment when the pushing element is retracted. The spring automatically adjusts the position of the abutment to the initial position, which simplifies the operation process and realizes automatic reset.

[0015] Preferably, the guide mechanism is further provided with a horizontal limit surface, and the horizontal limit surface forms a sliding fit with the upper side surface of the abutment member.

[0016] By adopting the above technical solution, the horizontal limiting surface is used to limit the movement of the abutment member in the vertical direction, thereby ensuring that the abutment block only causes radial movement of the rotor cup, thereby improving the stability and reliability of the equipment.

[0017] Preferably, a positioning pin for positioning the rotor cup is also provided at the top end of the guide mechanism, and the positioner is in thread-fitting engagement with the assembly hole of the rotor cup.

[0018] By adopting the above technical solution, the positioning pin can be used to ensure the precise position of the rotor cup during the curing process, and the stability of the rotor cup after being subjected to force can be improved by cooperating with the top of the guide mechanism.

[0019] Preferably, a central positioning hole is provided on the pushing element, and the central positioning hole is plug-fitted with the central axis.

[0020] By adopting the above technical solution, the central positioning hole and the central axis of the pushing element are utilized to form a plug-in fit during the pushing process, thereby ensuring that the abutment has a higher precision during radial movement. This concentric setting prevents the pushing element from deflecting or twisting when pushing the abutment, thereby ensuring accurate fit between the abutment and the magnetic steel sheet.

[0021] Preferably, the abutment member is provided with a second wedge-shaped abutment portion, and the second wedge-shaped abutment portion forms a sliding fit with the first wedge-shaped abutment portion.

[0022] By adopting the above technical solution and utilizing the design of the second wedge-shaped abutting portion, the abutting member can slide more smoothly when pushed by the pushing element, thereby improving the operating efficiency of the equipment.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By setting the base, abutment and drive unit, the uniform distribution and rapid curing of the structural adhesive between the magnetic steel sheet and the rotor cup are achieved, thereby improving production efficiency;

[0025] 2. The setting of the guide mechanism, the horizontal limit surface and the guide groove makes the radial sliding of the abutment part more stable and reliable;

[0026] 3. The setting of positioning pin and center positioning hole ensures the accurate positioning of the rotor cup and improves the accuracy of the equipment; BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram mainly showing the overall structure in the embodiment of the present application;

[0028] Figure 2 is a cross-sectional view of the main structure in an embodiment of the present application;

[0029] Figure 3 It is an exploded view of the overall structure in the embodiment of the present application;

[0030] Figure 4 It is a schematic diagram of the abutment member in the embodiment of the present application.

[0031] Figure numerals: 1. rotor cup; 11. assembly hole; 2. guide mechanism; 3. abutment; 31. vertical portion; 32. second wedge-shaped abutment; 33. horizontal portion; 4. base; 5. pushing element; 51. first wedge-shaped abutment; 52. center positioning hole; 6. cylinder; 7. positioning pin; 8. return spring. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1 -Attached Figure 4 This application is described in further detail.

[0033] The embodiment of the present application discloses a device for curing magnetic steel sheets and rotor cups for an outer rotor motor.

[0034] Reference Figure 1 and Figure 2 A curing device for a magnetic steel sheet and a rotor cup for an outer rotor motor includes a base 4, on which is disposed an abutment member 3 which slides radially along a rotor cup 1, the abutment member 3 and the magnetic steel sheet form an abutment fit and the abutment member 3 is arranged in an L-shaped structure, wherein a plurality of abutment members 3 are arranged in a circumferentially spaced array on the base 4. In an embodiment of the present application, six abutment members 3 are arranged, and a driving unit for driving the six abutment members 3 to slide synchronously is disposed on the base 4.

[0035] Reference Figure 3 A guide mechanism 2 is provided on the base 4. The guide mechanism 2 is cylindrical and is provided with guide grooves. There are 6 guide grooves corresponding to the number of abutment members 3. Any abutment member 3 forms a sliding fit with the corresponding guide groove. The setting of the guide mechanism 2 ensures the stability and accuracy of the abutment member 3 during the sliding process, prevents it from being offset or tilted, and thus ensures good abutment with the magnetic steel sheet.

[0036] Reference Figure 3 and Figure 4 The driving unit includes a cylinder 6 fixed to the lower end of the base 4, and a pushing element 5 for simultaneously pushing the six abutting members 3 is connected to the piston rod of the cylinder 6. The pushing element 5 moves along the axial direction of the rotor cup 1. The pushing element 5 is in a truncated cone shape, and a first wedge-shaped abutting portion 51 is formed on the busbar on the side of the pushing element 5; correspondingly, the abutting member 3 arranged in an L shape is provided with a horizontal portion 33 and a vertical portion 31, wherein a second wedge-shaped abutting portion 32 is provided on the side of the horizontal portion 33 and the vertical portion 31 close to the pushing element 5; when the piston rod of the cylinder 6 is extended or retracted, the upward force of the pushing element 5 is transmitted to the horizontal movement force of the abutting member 3 through the abutment action of the first wedge-shaped abutting portion 51 and the second wedge-shaped abutting portion 32 of the pushing element 5, so that the abutting member 3 slides radially along the rotor cup 1, so as to achieve the abutment of the side of the horizontal portion 33 away from the pushing element 5 with the magnetic steel sheet.

[0037] Reference Figure 3 and Figure 4 In order to further improve the stability and operational convenience of the device, a return spring 8 is also provided on the base 4, one end of the return spring 8 is connected to the base 4, and the other end is connected to the side of the horizontal portion 33 of the abutment 3 away from the pushing element 5.

[0038] In actual use, as the abutment force continues to increase, the reset spring 8 is compressed and accumulates force. When the abutment member 3 completes the abutment against the magnetic steel sheet, due to the rapid recovery of the piston rod of the cylinder 6, the reset spring 8 can use its rebound force to automatically reset the abutment member 3 to its initial position, preparing for the next abutment operation.

[0039] In addition, the guide mechanism 2 is integrally formed with a horizontal limit block along its circumference, and a horizontal limit surface is set on the side of the horizontal limit block close to the cylinder 6; the horizontal limit surface forms a sliding fit with the side of the horizontal portion 33 of the abutment 3 facing away from the cylinder 6, and its function is to limit the axial movement of the abutment 3 toward the rotor cup 1 under the abutment action of the pushing element 5, thereby ensuring that the abutment 3 can only move in the horizontal direction, that is, slide in the radial direction of the rotor cup 1. Such a design further improves the stability of the equipment and the reliability of operation.

[0040] Reference Figure 2 and Figure 3 A positioning pin 7 for positioning the rotor cup 1 is added to the top of the guide mechanism 2. The positioning pin 7 is connected with the assembly hole 11 on the rotor cup 1 to ensure that the rotor cup 1 can be accurately and stably placed on the equipment for curing operation. This positioning method not only improves the positioning accuracy of the equipment, but also greatly simplifies the operation process.

[0041] In order to further improve the positioning accuracy and stability of the device, a central positioning hole 52 is specially provided on the pushing element 5. The central positioning hole 52 is plugged into the central axis of the rotor, which means that when the rotor cup 1 is placed on the device, the central axis can be accurately inserted into the central positioning hole 52, thereby achieving precise positioning with the device. Such a design not only ensures the accuracy of the curing operation, but also significantly improves the overall stability of the device.

[0042] The implementation principle of the embodiment of the present application is:

[0043] When in use, the rotor cup 1 is placed in the equipment, and then the cylinder 6 is started, the piston rod of the cylinder 6 is extended, and the pushing element 5 is driven to move along the axial direction of the rotor cup 1; since the pushing element 5 is provided with a second wedge-shaped abutment portion 32, during the movement process, it will gradually push the abutment member 3 to move radially outward along the rotor cup 1 until a tight abutment fit is formed with the magnetic steel sheet; in this abutment state, effective tension-assisted reinforcement is formed between the magnetic steel sheet and the rotor cup 1, thereby greatly shortening the curing time and improving production efficiency.

[0044] When the magnetic steel sheet is solidified, the piston rod of the cylinder 6 is quickly retracted, and the return spring 8 uses the rebound force after being compressed to quickly push the abutment member 3 to reset, ready for the next abutment. The automatic reset of the return spring 8 effectively reduces the workload required by manual labor and improves work efficiency.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A curing device for magnetic steel sheets and rotor cups for an outer rotor motor, characterized in that: The invention comprises a base (4), on which is provided an abutment member (3) which is capable of sliding back and forth radially along the rotor cup (1) and forming an abutment fit with the magnetic steel sheet, and on which is provided a driving unit for driving the abutment member (3) to slide back and forth.

2. The curing device for magnetic steel sheets and rotor cups for outer rotor motors according to claim 1, characterized in that: The base (4) is provided with a guide mechanism (2), the guide mechanism (2) is provided with a guide slot, and the abutment member (3) forms an embedded sliding fit with the guide slot.

3. The curing device for magnetic steel sheets and rotor cups for outer rotor motors according to claim 1, characterized in that: The driving unit comprises a cylinder (6) fixed on a base (4); a pushing element (5) is connected to a piston rod of the cylinder (6); the pushing element (5) moves along the axial direction of the rotor cup (1); and a first wedge-shaped abutment portion (51) is provided on the pushing element (5) for pushing the abutment member (3) to move radially.

4. The curing device for magnetic steel sheets and rotor cups for outer rotor motors according to claim 3, characterized in that: A return spring (8) is provided on the base (4), one end of the return spring (8) is connected to the base (4), and the other end of the return spring (8) is connected to a side of the abutment member (3) facing away from the pushing element (5).

5. The curing equipment for magnetic steel sheets and rotor cups for outer rotor motors according to claim 2, characterized in that: The guide mechanism (2) is also provided with a horizontal limit surface, and the horizontal limit surface forms a sliding fit with the upper side surface of the abutment member (3).

6. The curing device for magnetic steel sheets and rotor cups for outer rotor motors according to claim 2, characterized in that: A positioning pin (7) for positioning the rotor cup (1) is also provided at the top end of the guide mechanism (2); the positioning pin (7) and the assembly hole (11) of the rotor cup (1) form a through-fitting connection.

7. The curing equipment for magnetic steel sheets and rotor cups for outer rotor motors according to claim 3, characterized in that: The pushing element (5) is provided with a central positioning hole (52), and the central positioning hole (52) is plug-fitted with the central axis of the rotor.

8. The curing device for magnetic steel sheets and rotor cups for outer rotor motors according to claim 3, characterized in that: The abutment member (3) is provided with a second wedge-shaped abutment portion (32), and the second wedge-shaped abutment portion (32) forms a sliding fit with the first wedge-shaped abutment portion (51).

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