A method of installing rotor magnetic steel sheets

Abstract

The application relates to the technical field of installation of magnetic steel sheets, in particular to a method for installing rotor magnetic steel sheets. The method is installed through a magnetic steel sheet pressing tool, the tool comprises a base, a pressing device and a fixing assembly arranged on the base, a guide rail is arranged on the base, the fixing assembly is arranged at one end of the guide rail, and the pressing device is arranged on one side of the fixing assembly; the pressing device comprises a support frame, a connecting rod, a spring and a pneumatic assembly, the support frame is arranged on one side of the fixing assembly, the middle part of the connecting rod is hinged to the top of the support frame, one end of the connecting rod faces the fixing assembly, the pneumatic assembly is fixedly arranged on one side of the support frame close to the fixing assembly and located directly below the connecting rod, one end of the spring is fixedly connected to the base, and the other end of the spring is fixedly connected to one end of the connecting rod away from the fixing assembly; wherein the end of the connecting rod facing the fixing assembly is a pressing end. Through the tool, the glue on the magnetic steel sheet can be made to be flat and not protruding after solidification.

Description

Technical Field

[0001] This invention relates to the field of magnetic steel sheet installation technology, and more particularly to a method for installing rotor magnetic steel sheets. Background Technology

[0002] A compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas; it is the heart of a refrigeration system. It draws in low-temperature, low-pressure refrigerant gas through the suction pipe, compresses it using a piston driven by a motor, and then discharges high-temperature, high-pressure refrigerant gas through the discharge pipe, providing power for the refrigeration cycle and thus realizing the refrigeration cycle of compression → condensation (heat release) → expansion → evaporation (heat absorption).

[0003] Magnets are usually installed on the rotor of a compressor. Since magnets have two poles, when two identical poles are installed, they will repel each other. As a result, when the magnets are installed on the rotor, they will bulge and become uneven. Summary of the Invention

[0004] In order to solve the above-mentioned technical problems, the purpose of this invention is to provide a method for installing rotor magnets, which involves applying glue to the magnets and pressing them with a tool, so that the magnets can be installed flat and without protrusions after the glue has solidified.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A method for installing rotor magnets, wherein the method is performed by a magnet pressing fixture, the magnet pressing fixture including a base, a pressing device and a fixing component disposed on the base, a guide rail provided on the base, the fixing component disposed at one end of the guide rail, and the pressing device disposed on one side of the fixing component; The pressing device includes a support frame, a connecting rod, a spring, and a pneumatic assembly. The support frame is located on one side of the fixed assembly. The middle part of the connecting rod is hinged to the top of the support frame, with one end of the connecting rod facing the fixed assembly. The pneumatic assembly is fixedly mounted on the side of the support frame near the fixed assembly and located directly below the connecting rod. One end of the spring is fixedly connected to the base, and the other end is fixedly connected to the end of the connecting rod away from the fixed assembly. The end of the connecting rod facing the fixed assembly is the pressing end. The method includes the following steps: S1. Drive the pneumatic assembly to lift the pressing end of the connecting rod upward, thereby compressing the spring and fixing the rotor on the fixed assembly; S2. Glue the magnet sheet to the outer surface of the middle part of the rotor. S3. Stop driving the pneumatic components, so that the connecting rod is driven by the elastic potential energy of the spring to press the pressing end downward; S4. After one magnet is fixed, rotate the rotor and stick the other magnets to the middle of the rotor, and drive the pressing device to repeatedly lift and press the pressing end until the outer diameter of the middle of the rotor is covered with magnets.

[0006] Preferably, the fixing assembly includes a fixed plate and a movable plate arranged opposite to each other. Both the fixed plate and the movable plate have a slot on their top ends. The fixed plate is fixedly connected to the base and close to one end of the guide rail. The movable plate is set on the base and slidably connected to the guide rail. In step S1, when fixing the rotor, the movable plate needs to be moved to the side of the guide rail away from the fixed plate. When both ends of the rotor are mounted on the slot, the movable plate is moved towards the fixed plate until the fixed plate and the movable plate abut against the rotor slots provided on the rotor.

[0007] Preferably, the guide rail includes a main guide rail and auxiliary guide rails on both sides of the main guide rail. The bottom of the main guide rail is provided with a fixedly connected locking block, and the locking block is provided with a vertically arranged through hole. The moving plate is provided with a bolt-connected fixing piece. The bottom end of the fixing piece is folded away from the moving plate, and the folded end is provided with a slot. In step S1, when the moving plate abuts against the rotor slot, a bolt is used to pass it through the through hole and the slot.

[0008] Preferably, the tooling also includes a transmission assembly, which includes a fixed base, a driver, and a lead screw. The fixed base is located on the base and at the end of the guide rail away from the fixed assembly. The lead screw is located on one side of the fixed base and extends laterally through the fixed base. The driver is located on the other side of the fixed base and is connected to the lead screw. The lead screw is located directly above and parallel to the guide rail, and is connected to the movable plate. In step S1, the driver is activated to rotate the lead screw and move the movable plate.

[0009] Preferably, the spring has a limiting rod inside that is connected to the base.

[0010] Preferably, the connecting rod has a magnetic pressure block at the bottom of the pressing end, and the magnetic pressure block is located directly above the fixed plate and the moving plate.

[0011] Preferably, two bearings are provided on both the side of the fixed plate facing the movable plate and the side of the movable plate facing the fixed plate, and the bearings are symmetrically arranged on both sides of the slot, while the slot is located at the top center of the fixed plate and the movable plate.

[0012] Preferably, the bottom of the movable plate is provided with a protrusion, which is engaged with the guide rail and can slide on the guide rail.

[0013] Preferably, the drive is a rotating handrail or a motor.

[0014] In summary, the advantages of this invention are as follows: In the non-pressing state, the pneumatic assembly is activated, causing the pressing end of the connecting rod to tilt upwards, at which point the spring is compressed. In the pressing state, the pneumatic assembly returns to its original state, and the spring transfers its elastic potential energy from the compressed state to the connecting rod, thus causing the pressing end of the connecting rod to press downwards. By installing a pressing device on the magnetic sheet, the magnetic sheet can be pressed using this device, eliminating the need for manual pressing, saving time and effort, greatly improving production efficiency, and preventing the magnetic sheet from bulging out. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the magnetic sheet pressing fixture; Figure 2 This is a side view of the magnetic sheet pressing fixture; Figure 3 A bottom view of the magnetic sheet pressing fixture; Figure 4 This is a schematic diagram of the movable plate structure; Reference numerals: 1. Base; 11. Main guide rail; 12. Secondary guide rail; 13. Locking block; 14. Through hole; 21. Support frame; 22. Connecting rod; 23. Spring; 24. Pneumatic assembly; 25. Limiting rod; 26. Magnetic pressure block; 31. Fixing plate; 32. Moving plate; 33. Slot; 34. Bearing; 35. Protrusion; 36. Fixing piece; 37. Hole and slot; 41. Fixing seat; 42. Driver; 43. Lead screw. Detailed Implementation

[0016] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0017] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0018] It should also be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0020] like Figures 1 to 4 As shown, a method for installing rotor magnets is described. The fixture includes a base 1, a pressing device disposed on the base 1, and a fixing assembly. The rotor is fixed by the fixing assembly. After the rotor is pressed, the pressing device is driven to press the magnets on the rotor. The specific fixing and pressing methods will be described later.

[0021] like Figure 1 and Figure 3 As shown, a guide rail is provided on the base 1, and the fixing component is provided at one end of the guide rail, while the pressing device is provided on one side of the fixing component.

[0022] like Figure 1 As shown, the fixing assembly includes a fixed plate 31 and a movable plate 32 arranged opposite to each other. The top of both the fixed plate 31 and the movable plate 32 is provided with a slot 33. The fixed plate 31 is fixedly connected to the base 1 and close to one end of the guide rail. The movable plate 32 is disposed on the base 1 and slidably connected to the guide rail. A gap is left between the fixed plate 31 and the movable plate 32 to facilitate the subsequent placement of the rotor.

[0023] like Figure 1 and Figure 2 As shown, the pressing device includes a support frame 21, a connecting rod 22, a spring 23, and a pneumatic assembly 24. The support frame 21 is located on one side of the fixed assembly. The middle part of the connecting rod 22 is hinged to the top of the support frame 21, with one end of the connecting rod 22 facing the fixed assembly. The pneumatic assembly 24 is fixedly mounted on the side of the support frame 21 near the fixed assembly and located directly below the connecting rod 22. One end of the spring 23 is fixedly connected to the base 1, and the other end is fixedly connected to the end of the connecting rod 22 away from the fixed assembly. The end of the connecting rod 22 facing the fixed assembly is the pressing end. The pneumatic assembly 24 can be a cylinder.

[0024] like Figures 1 to 2 As shown, two bearings 34 are provided on the side of the fixed plate 31 facing the movable plate 32, and the two bearings 34 are symmetrically arranged on both sides of the slot 33 of the fixed plate 31; and two bearings 34 are also provided on the side of the movable plate 32 facing the fixed plate 31, and the two bearings 34 are symmetrically arranged on both sides of the slot 33 of the movable plate 32. The slot 33 is located at the top center of the fixed plate 31 and the movable plate 32. By providing bearings 34, the rotor can be better fixed. The specific fixing method will be described later.

[0025] The pressing device has a pressing state and a non-pressing state. In the non-pressing state, the pneumatic component 24 is activated and drives the pressing end of the connecting rod 22 to tilt up. At this time, the spring 23 is in a compressed state. In the pressing state, the pneumatic component 24 returns to its original state, and the spring 23 transfers the elastic potential energy of the compressed state to the connecting rod 22, thereby driving the pressing end of the connecting rod 22 to press down.

[0026] In order to better fix the spring 23 and prevent it from bending, a limiting rod 25 connected to the base 1 is provided inside the spring 23. The height of the limiting rod 25 is less than the height of the spring 23 when it is compressed, so as to ensure that the pressing end of the connecting rod 22 can be raised to a sufficient height when the spring 23 is compressed.

[0027] In order to better press the magnets on the rotor, a magnet pressing block 26 is provided at the bottom of the pressing end of the connecting rod 22. The magnet pressing block 26 is located directly above the gap between the fixed plate 31 and the moving plate 32. When the rotor is fixed on the fixed plate 31 and the moving plate 32, the pressing end can also abut against the magnet.

[0028] like Figure 1 and Figure 3 As shown, three guide rails are provided: a main guide rail 11 and auxiliary guide rails 12 located on both sides of the main guide rail 11. The arrangement of the three guide rails can better fix and move the moving plate 32. The bottom of the main guide rail 11 is provided with a fixed connection block 13, and the block 13 is provided with a vertically arranged through hole 14.

[0029] A protrusion 35 is provided at the bottom of the movable plate 32. The protrusion 35 is engaged with the guide rail and can slide on the guide rail. The protrusion 35 can be provided in the main guide rail 11 or the secondary guide rail 12.

[0030] The movable plate 32 is provided with a fixing plate 36 for bolt connection. The bottom end of the fixing plate 36 is folded away from the movable plate 32, and a slot 37 is provided on the folded end. When it is necessary to fix the movable plate 32, the slot 37 on the fixing plate 36 of the movable plate 32 will be on the same vertical line as the through hole 14 on the main guide rail 11 locking block 13. At this time, it is only necessary to insert a screw into the slot 37 and the through hole 14 to fix it.

[0031] The specific locking block 13 can slide and connect to the bottom of the main guide rail 11 or the secondary guide rail 12, which allows the tooling to be adapted to different rotors.

[0032] like Figure 1As shown, the tooling also includes a transmission assembly, which includes a fixed base 41, a driver 42, and a lead screw 43. The fixed base 41 is mounted on the base 1 and located at the end of the guide rail away from the fixed assembly. The lead screw 43 is located on one side of the fixed base 41 and extends laterally through the fixed base 41. The driver 42 is located on the other side of the fixed base 41 and is connected to the lead screw 43. The lead screw 43 is located directly above the guide rail and parallel to it, and is connected to the moving plate 32.

[0033] The aforementioned driver 42 can be a rotating handrail or a motor. The rotating handrail is manually controlled and can be more precise, while the motor control is more labor-saving. Both have their own advantages.

[0034] The steps for installing the magnet plates using this tool are as follows: First, the pneumatic assembly 24 is activated, causing the pressing end of the connecting rod 22 to rise upwards. Then, the driver 42 is activated, moving the movable plate 32 away from the fixed plate 31. After moving a certain distance, the rotor is placed on the bearing 34 of the movable plate 32 and the fixed plate 31, and the movable plate 32 is moved towards the fixed plate 31 again until the bearing 34 abuts against the rotor slot. The movable plate 32 is then fixed in its current position. When installing the magnets on the rotor, the cylinder assembly no longer abuts against the connecting rod 22. Under the elastic potential energy of the spring 23, the pressing end of the connecting rod 22 rotates downwards, pressing the magnets. This process continues as magnets are installed.

[0035] The method includes the following steps: S1. Drive the pneumatic assembly 24 to lift the pressing end of the connecting rod 22 upward, thereby compressing the spring 23. Start the driver 42 to rotate the lead screw 43 and drive the moving plate 32 to move away from the fixed plate 31. When both ends of the rotor are mounted on the slot 33, move the moving plate 32 towards the fixed plate 31 until the fixed plate 31 and the moving plate 32 abut against the rotor slot provided on the rotor. At this time, use bolts to pass through the through hole 14 and the slot 37.

[0036] S2. Glue the magnet sheet to the outer surface of the middle part of the rotor. S3. Stop driving the pneumatic assembly 24, so that the connecting rod 22 is driven by the elastic potential energy of the spring 23 to press the pressing end downward. S4. After one magnet is fixed, rotate the rotor and stick the other magnets to the middle of the rotor, and drive the pressing device to repeatedly lift and press the pressing end until the outer diameter of the middle of the rotor is covered with magnets.

[0037] In the above tooling and installation method, the two ends of the rotor can be mounted in two bearings 34, and the pneumatic component 24 of the pressing device in the tooling can be set at the position of the spring 23. At this time, the spring 23 can also be set at the position of the pneumatic component 24, or it can be omitted. The method of driving the pressing end of the pressing device to move is not unique.

[0038] In summary, the advantages of this invention are as follows: In the non-pressing state, the pneumatic assembly 24 is activated, causing the pressing end of the connecting rod 22 to tilt upwards, at which point the spring 23 is in a compressed state. In the pressing state, the pneumatic assembly 24 returns to its original state, and the spring 23 transfers the elastic potential energy from the compressed state to the connecting rod 22, thereby causing the pressing end of the connecting rod 22 to press downwards. By setting a pressing device on the magnetic sheet, the magnetic sheet can be pressed using this device, eliminating the need for manual pressing, saving time and effort, greatly improving production efficiency, and preventing the magnetic sheet from bulging.

[0039] The foregoing description of embodiments of the present invention, through which those skilled in the art are able to implement or use the present invention, will be readily apparent to those skilled in the art. Various modifications to these embodiments will be readily apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novelty disclosed herein.

Claims

1. A method for installing rotor magnets, characterized in that, The method is to install the magnetic steel sheet by means of a magnetic steel sheet pressing fixture, which includes a base (1), a pressing device and a fixing component on the base (1). A guide rail is provided on the base (1), and the fixing component is provided at one end of the guide rail, while the pressing device is provided on one side of the fixing component. The pressing device includes a support frame (21), a connecting rod (22), a spring (23), and a pneumatic assembly (24). The support frame (21) is located on one side of the fixed assembly. The middle part of the connecting rod (22) is hinged to the top of the support frame (21), and one end of the connecting rod (22) faces the fixed assembly. The pneumatic assembly (24) is fixedly located on the side of the support frame (21) near the fixed assembly and directly below the connecting rod (22). One end of the spring (23) is fixedly connected to the base (1), and the other end is fixedly connected to the end of the connecting rod (22) away from the fixed assembly. The end of the connecting rod (22) facing the fixed assembly is the pressing end. The method includes the following steps: S1. Drive the pneumatic assembly (24) to lift the pressing end of the connecting rod (22) upward, thereby compressing the spring (23) and fixing the rotor on the fixed assembly; S2. Glue the magnet sheet to the outer surface of the middle part of the rotor. S3. Stop driving the pneumatic assembly (24), so that the connecting rod (22) is driven by the elastic potential energy of the spring (23) to press the pressing end downward; S4. After one magnet is fixed, rotate the rotor and stick the other magnets to the middle of the rotor, and drive the pressing device to repeatedly lift and press the pressing end until the outer diameter of the middle of the rotor is covered with magnets.

2. The method for installing rotor magnets according to claim 1, characterized in that, The fixing assembly includes a fixed plate (31) and a movable plate (32) arranged opposite to each other. The top of the fixed plate (31) and the movable plate (32) are provided with slots (33). The fixed plate (31) is fixedly connected to the base (1) and close to one end of the guide rail. The movable plate (32) is set on the base (1) and slidably connected to the guide rail. In step S1, when fixing the rotor, the movable plate (32) needs to be moved to the side of the guide rail away from the fixed plate (31). When both ends of the rotor are mounted on the slots (33), the movable plate (32) is moved towards the fixed plate (31) until the fixed plate (31) and the movable plate (32) abut against the rotor slots provided on the rotor.

3. The method for installing rotor magnets according to claim 2, characterized in that, The guide rail includes a main guide rail (11) and auxiliary guide rails (12) located on both sides of the main guide rail (11). The bottom of the main guide rail (11) is provided with a fixedly connected locking block (13), and the locking block (13) is provided with a vertically arranged through hole (14). The moving plate (32) is provided with a bolt-connected fixing piece (36). The bottom end of the fixing piece (36) is folded away from the moving plate (32), and the folded end is provided with a hole groove (37). In step S1, when the moving plate (32) abuts against the rotor groove, a bolt is used to pass it through the through hole (14) and the hole groove (37).

4. The method for installing rotor magnets according to claim 2, characterized in that, The tooling also includes a transmission assembly, which includes a fixed base (41), a driver (42), and a lead screw (43). The fixed base (41) is located on the base (1) and at the end of the guide rail away from the fixed assembly. The lead screw (43) is located on one side of the fixed base (41) and extends laterally through the fixed base (41). The driver (42) is located on the other side of the fixed base (41) and is connected to the lead screw (43). The lead screw (43) is located directly above the guide rail and parallel to it, and the lead screw (43) is connected to the moving plate (32). In step S1, the driver (42) is activated to rotate the lead screw (43) and drive the moving plate (32) to move.

5. The method for installing rotor magnets according to claim 1, characterized in that, The spring (23) has a limiting rod (25) connected to the base (1) inside.

6. The method for installing rotor magnets according to claim 1, characterized in that, The connecting rod (22) has a magnetic steel block (26) at the bottom of the pressing end, and the magnetic steel block (26) is located directly above the fixed plate (31) and the moving plate (32).

7. A method for installing rotor magnets according to claim 2, characterized in that, Two bearings (34) are provided on the side of the fixed plate (31) facing the movable plate (32) and the side of the movable plate (32) facing the fixed plate (31), and the bearings (34) are symmetrically arranged on both sides of the slot (33), and the slot (33) is located at the top center of the fixed plate (31) and the movable plate (32).

8. A method for installing rotor magnets according to claim 2, characterized in that, The bottom of the movable plate (32) is provided with a protrusion (35), which is engaged with the guide rail and can slide on the guide rail.

9. A method for installing rotor magnets according to claim 4, characterized in that, The driver (42) is a rotating handrail or a motor.

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