Permanent magnet motor stator and rotor assembling equipment

Abstract

The utility model discloses permanent magnet motor stator and rotor assembling equipment, which comprises a rack, and a rotor clamping mechanism, a motor shell fixing mechanism, an upper ejector pin mechanism and a lower ejector pin mechanism which are arranged on the rack, the rotor clamping mechanism is used for clamping a rotor assembly; the motor shell fixing mechanism is used for fixing a motor shell; the upper ejector pin mechanism and the lower ejector pin mechanism are used for pressing and fixing the two axial ends of the rotor assembly and installing the rotor assembly into a stator assembly in a motor shell after pressing and fixing. The utility model provides a permanent magnet motor stator and rotor assembling device, which can ensure the coaxiality when a rotor and a stator are assembled and improve the assembling quality and the assembling efficiency under the condition that the walls of the stator and the rotor are not damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of permanent magnet motor stator-rotor combined equipment, belong to motor assembly equipment technical field. BACKGROUND

[0002] At present, the stator-rotor of various new energy motors is combined, and in the prior art, the rotor is manually hoisted and assembled into the stator by manual work. The new energy motor, i.e. the main drive motor of a new energy vehicle, has a large volume, and the stator and the rotor have a large volume accordingly. Moreover, the rotor is a strong magnetic material, and has a large contact area with the stator, so the suction force is large. During the combination of the stator and the rotor, the stator and the rotor are often damaged due to the magnetic force therebetween, and it is difficult to ensure the coaxiality requirement during assembly, and the assembly quality and efficiency are low. SUMMARY

[0003] The utility model solves the technical problems that the prior art is improved, and provides a kind of permanent magnet motor stator-rotor combined equipment, can guarantee the coaxiality of rotor and stator during assembly without damaging the stator and rotor wall, improve assembly quality and assembly efficiency.

[0004] To solve the above technical problems, the technical scheme of the utility model is as follows:

[0005] A kind of permanent magnet motor stator-rotor combined equipment, it includes frame, and the rotor clamping mechanism, motor shell fixing mechanism, upper needle mechanism and lower needle mechanism set on the frame;

[0006] The rotor clamping mechanism is used to clamp rotor assembly;

[0007] The motor shell fixing mechanism is used to fix the motor shell;

[0008] The upper needle mechanism and the lower needle mechanism are used to press and fix the axial ends of the rotor assembly, and after press and fix, the rotor assembly is loaded into the stator assembly in the motor shell.

[0009] Further, the rotor clamping mechanism includes a moving assembly and a clamping assembly, the clamping assembly is connected with the moving assembly, and the moving assembly is used to drive the clamping assembly to clamp and release the rotor assembly.

[0010] Further, the moving assembly includes an upper mounting plate, an upper guide rail, a movable plate and a cylinder, the upper mounting plate is arranged on the top of the frame, the upper guide rail is arranged on the upper mounting plate, the movable plate is slidably connected with the upper guide rail, and the cylinder is arranged on the upper mounting plate. The cylinder is used to drive the movable plate to slide on the upper guide rail.

[0011] Further, the clamping assembly comprises a rotor base bottom plate, a rotor base and guide columns, the rotor base bottom plate is connected with the movable plate through the guide columns, and the rotor base is fixed on the rotor base bottom plate.

[0012] Further, the upper ejector pin mechanism comprises an upper servo motor, an upper electric cylinder, an upper ejector pin fixing plate, an upper ejector pin, a connecting plate and an upper ejector pin guide rail, the upper servo motor is connected with the upper electric cylinder, the upper electric cylinder is fixed on the upper mounting plate, the upper ejector pin fixing plate is connected with the output shaft of the upper electric cylinder, the connecting plate is connected with the upper ejector pin fixing plate, the upper ejector pin is fixed on the upper ejector pin fixing plate, the upper ejector pin guide rail is fixed on the back plate of the rack, and the connecting plate is in sliding connection with the upper ejector pin guide rail.

[0013] Further, the upper ejector pin fixing plate is provided with a positioning column matched with the opening on the front end cover of the driving end of the rotor assembly.

[0014] Further, the motor shell fixing mechanism comprises a motor shell base, a rear end cover fixing seat, a motor shell fixing assembly and a ejector pin moving sleeve, the rack is provided with a lower bottom plate, the motor shell base is fixed on the lower bottom plate, the rear end cover fixing seat, the motor shell fixing assembly and the ejector pin moving sleeve are all fixed on the motor shell base, the motor shell base is provided with a through hole for the lower ejector pin to pass through, the ejector pin moving sleeve is fixed on the through hole, the rear end cover fixing seat is used for cooperating with and limiting the driving end rear end cover of the motor shell, and the motor shell fixing assembly is used for fixing the side wall of the motor shell.

[0015] Further, the motor shell fixing assembly comprises a motor shell fixing seat and a fixing key, the fixing key is arranged on the motor shell fixing seat, and the fixing key is in abutment with the side wall of the motor shell.

[0016] Further, the lower ejector pin mechanism comprises a lower servo motor, a lower electric cylinder and a lower ejector pin, the lower servo motor is fixed and connected with the lower electric cylinder, the lower electric cylinder is fixed on the lower bottom plate, and the lower ejector pin is connected with the output shaft of the lower electric cylinder.

[0017] Further, the top of the rack is provided with a display screen used for displaying a control page.

[0018] By adopting the technical scheme, the rotor assembly is first pressed and fixed by the upper and lower ejector pins driven by the upper and lower servo motors and the upper and lower electric cylinders, then the upper and lower ejector pins are synchronously moved, the rotor assembly is installed in the stator assembly in the shell, the attractive force between the rotor core and the stator core is overcome, the accurate positioning of the rotor assembly into the shell is ensured, and compared with the traditional installation mode, the efficiency is higher and the precision is higher. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the front view of permanent magnet motor stator and rotor combined equipment of the utility model;

[0020] Figure 2 It is the structure schematic view of the rotor assembly after being pressed and fixed by the upper thimble mechanism and the lower thimble mechanism of the utility model;

[0021] Figure 3 It is the sectional view of Figure 2 ;

[0022] Figure 4 It is the plan view of Figure 1 ;

[0023] Figure 5 It is the structure schematic view of the clamping assembly of the utility model;

[0024] Figure 6 It is the structure schematic view of the motor shell fixing mechanism of the utility model;

[0025] Figure 7 It is the cooperation structure schematic view of the motor shell and the motor shell fixing mechanism of the utility model;

[0026] Figure 8 It is the cooperation structure schematic view of the rotor assembly and the clamping assembly of the utility model;

[0027] Figure 9 It is the sectional view of Figure 8 ;

[0028] Figure 10 It is the structure schematic view of the permanent magnet motor of the utility model;

[0029] Figure 11 It is the isometric view of permanent magnet motor stator and rotor combined equipment of the utility model. DETAILED DESCRIPTION

[0030] In order to make the content of the utility model more easily be clearly understood, the utility model is further explained in detail below according to specific embodiment and in conjunction with the drawings.

[0031] As Figure 1 , 2 , 11 shows, the embodiment provides a kind of permanent magnet motor stator and rotor combined equipment, it includes rack 1, and the rotor clamping mechanism, motor shell fixing mechanism, upper thimble mechanism and lower thimble mechanism are set on rack 1.

[0032] The rotor clamping mechanism is used to clamp the rotor assembly, the motor shell fixing mechanism is used to fix the motor shell 11, and the stator assembly 12 is installed in the motor shell. The upper and lower thimble mechanisms are used to press and fix the axial ends of the rotor assembly 13, and the rotor assembly 13 is loaded into the stator assembly 12 in the motor shell 11 after being press-fixed.

[0033] The rotor assembly 13 is clamped by the rotor clamping mechanism, and then the upper and lower ends of the rotating shaft 132 of the rotor assembly 13 are pressed by the upper and lower thimble mechanisms. Then the rotor clamping mechanism releases the rotor assembly 13. During the loading process of the rotor assembly 13, the synchronous movement of the upper and lower thimble mechanisms ensures that the rotor assembly 13 is always at an equal distance from the inner wall of the central hole of the stator core during the loading process of the stator assembly 12. Thus, the attractive force between the rotor core and the stator core is overcome, the accurate positioning of the rotor assembly 13 during loading is ensured, and the assembly efficiency of the motor is improved.

[0034] As shown in Figure 10 , the permanent magnet motor used in the embodiment includes a motor shell 11, a stator assembly 12, and a rotor assembly 13. The rotor assembly includes a rotor assembly 131, a rotating shaft 132, a drive end front end cover 133, and a rear bearing 134. The rear end of the motor shell 11 is provided with a non-drive end rear end cover 111.

[0035] As shown in Figure 1 , 2 , 3, the rotor clamping mechanism of the embodiment includes a moving assembly and a clamping assembly. The clamping assembly is connected to the moving assembly, and the moving assembly can drive the clamping assembly to move left and right in the horizontal direction, thereby driving the clamping assembly to clamp and release the rotor assembly 13. Before the upper and lower thimble mechanisms press and fix the rotor assembly 13, the clamping assembly clamps the rotor assembly 13 to fix it. After the upper and lower thimble mechanisms press and fix the rotor assembly 13, the clamping assembly releases the rotor assembly 13.

[0036] As shown in Figure 4 , the moving assembly of the embodiment includes an upper mounting plate 21, an upper guide rail 22, a movable plate 23, and a gas cylinder 24. The upper mounting plate 21 is arranged at the top of the rack 1, and two upper guide rails 22 are arranged on the upper mounting plate 21 as tracks for the movement of the movable plate 23. The bottoms of the two movable plates 23 are respectively connected to the two upper guide rails 22 through sliding blocks, and two gas cylinders 24 are arranged in opposite directions on the upper mounting plate 21. Each gas cylinder 24 drives one movable plate 23 to slide on the upper guide rail 22, thereby driving the two movable plates 23 to move towards or away from each other.

[0037] As shown in Figure 3, 5 As shown in Figures 8 and 9, the clamping assembly of this embodiment includes a rotor base plate 31, a rotor base 32, and a guide post 33. The rotor base plate 31 is connected to the movable plate 23 via the guide post 33, and the rotor base 32 is fixed on the rotor base plate 31. Two sets of rotor base plates 31 and rotor bases 32 are provided respectively. The movable plate 23 drives the two sets of rotor base plates 31 and rotor bases 32 to move. After the two sets of rotor base plates 31 and rotor bases 32 are combined, they can support and fix the rotor assembly 13. Furthermore, the rotor base 32 has a slotted hole, allowing the position of the rotor base 32 on the rotor base 32 plate to be adjusted left and right, accommodating rotor assemblies 13 of different sizes.

[0038] like Figure 1 , 2 As shown in Figure 3, the upper ejector mechanism of this embodiment includes an upper servo motor 41, an upper electric cylinder 42, an upper ejector fixing plate 43, an upper ejector 44, a connecting plate 45, and an upper ejector guide rail 46. The upper servo motor 41 is connected to the upper electric cylinder 42, which is fixed on the upper mounting plate 21. The upper ejector fixing plate 43 is connected to the output shaft of the upper electric cylinder 42. The connecting plate 45 is connected to the upper ejector fixing plate 43. The upper ejector 44 is fixed on the upper ejector fixing plate 43. The upper ejector guide rail 46 is fixed on the back plate of the frame 1. The side wall of the connecting plate 45 is slidably connected to the upper ejector guide rail 46 via a slider. The upper servo motor 41 and the upper electric cylinder 42 work together, with the upper electric cylinder 42 driving the upper ejector fixing plate 43 to move up and down, thereby driving the upper ejector 44 to move up and down. In this embodiment, the upper ejector pin 44 is made of elastic material and is mounted on the upper ejector pin fixing plate 43. A servo motor and electric cylinder drive the upper ejector pin 44 to move up and down, pressing against the rotating shaft 132 of the rotor assembly 13 from above. The deformation of the elastic material automatically compensates for the verticality requirements of the rotor assembly 13, ensuring the required angle of the rotor assembly 13 during installation. The connecting plate 45 is connected to the upper ejector pin fixing plate 43 and can move up and down on the upper ejector pin guide rail 46, providing guidance for the up and down movement of the upper ejector pin 44.

[0039] like Figure 1 , 2 As shown in Figure 3, the upper ejector pin fixing plate 43 of this embodiment is also provided with a positioning post 47. The positioning post 47 cooperates with the opening on the front end cover 133 of the drive end of the rotor assembly 13. During the downward movement of the upper ejector pin 44, the positioning post 47 needs to cooperate with the opening on the front end cover 133 of the drive end of the rotor assembly 13 to position the installation position of the rotor assembly 13.

[0040] like Figure 1 , 2The motor shell fixing mechanism of the embodiment includes a motor shell base 51, a rear end cover fixing seat 52, a motor shell fixing assembly and a thimble moving sleeve 54. A lower bottom plate 55 is installed below the middle part of the rack 1, the motor shell base 51 is fixed on the lower bottom plate 55, and the rear end cover fixing seat 52, the motor shell fixing assembly and the thimble moving sleeve 54 are all fixed on the motor shell base 51. A through hole for the lower thimble 63 to pass through is formed on the motor shell base 51, and the thimble moving sleeve 54 is fixed on the through hole to provide guidance for the up-down movement of the lower thimble 63. The rear end cover fixing seat 52 is used for cooperating with the rear end cover 111 of the non-driving end of the motor shell 11 to limit the position, so as to ensure the relative position of the rotor assembly 13 and the motor shell 11 during assembly. The motor shell fixing assembly is installed on both sides of the motor shell 11 and is used for fixing the side wall of the motor shell 11.

[0041] As shown in Figure 6 , 7 , the motor shell fixing assembly of the embodiment is provided with two groups and is located on both sides of the motor shell 11. The motor shell fixing assembly includes a motor shell fixing seat 531 and a fixing key 532, the fixing key 532 is arranged on the motor shell fixing seat 531, the fixing key 532 is in abutment with the side wall of the motor shell and is used for fixing the motor shell 11.

[0042] As shown in Figure 3 , the lower thimble mechanism of the embodiment includes a lower servo motor 61, a lower electric cylinder 62 and a lower thimble 63, the lower servo motor 61 is fixed and connected with the lower electric cylinder 62, the lower electric cylinder 62 is fixed on the lower bottom plate 55, and the lower thimble 63 is connected with the output shaft of the lower electric cylinder 62. The lower servo motor 61 is used in cooperation with the lower electric cylinder 62, the lower electric cylinder 62 drives the lower thimble 63 to move up and down, the lower thimble 63 pushes the rotating shaft 132 of the rotor assembly 13 from below, then the upper thimble 44 and the lower thimble 63 move downward together to install the rotor assembly 13 in the motor shell 11.

[0043] As shown in Figure 1 , the top of the rack 1 of the embodiment is provided with a display screen 7 for displaying the control page of the device.

[0044] As shown in Figure 1 , the rack 1 of the embodiment is provided with a controller button 8 for controlling the start and stop of the assembly device.

[0045] As shown in Figure 1 , the bottom of the rack 1 of the embodiment is provided with a foot 9 for supporting the assembly device and facilitating the transfer of the position.

[0046] The working principle of the utility model is as follows:

[0047] When the device is used, the rotor clamping mechanism is in the integrated state, the prepared motor shell 11 is first fixed on the motor shell fixing mechanism, then the rotor assembly 13 is placed on the rotor clamping mechanism, after the placement is completed, the device is started. At this time, the upper thimble 44 above the device moves downward, attention should be paid to the positioning column 47 on the upper thimble fixing plate 43 during the downward movement, and cooperation positioning with the opening on the driving end front end cover 133 on the rotor assembly 13 is required. After positioning is completed, the lower thimble 63 below starts to move upward, when the upper and lower thimbles are pressed against the rotating shaft 132 of the rotor assembly 13, the rotor clamping mechanism starts to move to both sides to open, at this time the rotor assembly 13 is fixed between the upper and lower thimbles, the upper and lower thimbles start to move downward synchronously, and the rotor assembly 13 is installed into the stator assembly 12 in the motor shell 11. At this time, the integrated assembly of the stator and the rotor is completed, and the upper and lower thimbles are respectively retracted upward and downward to the original positions.

[0048] The above specific embodiments further specifically describe the technical problems, technical solutions and beneficial effects solved by the utility model, and it should be understood that the above description is only for specific embodiments of the utility model and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A permanent magnet motor stator-rotor assembling device, characterized in that: It includes a rack (1), and a rotor clamping mechanism, a motor shell fixing mechanism, an upper thimble mechanism and a lower thimble mechanism arranged on the rack (1); The rotor clamping mechanism is used for clamping a rotor assembly (13); The motor shell fixing mechanism is used for fixing a motor shell (11); The upper thimble mechanism and the lower thimble mechanism are used for pressing and fixing the axial ends of the rotor assembly (13), and after the pressing and fixing, the rotor assembly (13) is loaded into a stator assembly (12) in the motor shell (11); The rotor clamping mechanism includes a moving assembly and a clamping assembly, the clamping assembly is connected with the moving assembly, and the moving assembly is used for driving the clamping assembly to clamp and release the rotor assembly (13); The moving assembly includes an upper mounting plate (21), an upper guide rail (22), a movable plate (23) and a gas cylinder (24), the upper mounting plate (21) is arranged on the top of the rack (1), the upper guide rail (22) is arranged on the upper mounting plate (21), the movable plate (23) is slidably connected with the upper guide rail (22), and the gas cylinder (24) is arranged on the upper mounting plate (21), and the gas cylinder (24) is used for driving the movable plate (23) to slide on the upper guide rail (22).

2. The permanent magnet motor stator-rotor assembling apparatus according to claim 1, characterized in that: The clamping assembly includes a rotor seat bottom plate (31), a rotor base (32) and a guide column (33), the rotor seat bottom plate (31) is connected with the movable plate (23) through the guide column (33), and the rotor base (32) is fixed on the rotor seat bottom plate (31).

3. The permanent magnet motor stator-rotor assembling apparatus according to claim 1, characterized in that: The upper thimble mechanism includes an upper servo motor (41), an upper electric cylinder (42), an upper thimble fixing plate (43), an upper thimble (44), a connecting plate (45) and an upper thimble guide rail (46), the upper servo motor (41) is connected with the upper electric cylinder (42), the upper electric cylinder (42) is fixed on the upper mounting plate (21), the upper thimble fixing plate (43) is connected with the output shaft of the upper electric cylinder (42), the connecting plate (45) is connected with the upper thimble fixing plate (43), the upper thimble (44) is fixed on the upper thimble fixing plate (43), the upper thimble guide rail (46) is fixed on the back plate of the rack (1), and the connecting plate (45) is slidably connected with the upper thimble guide rail (46).

4. The permanent magnet motor stator-rotor assembling apparatus according to claim 3, characterized in that: The upper thimble fixing plate (43) is provided with a positioning column (47) matched with an opening on a front end cover (133) of a driving end of the rotor assembly (13).

5. The permanent magnet motor stator-rotor assembling apparatus according to claim 1, characterized in that: The motor shell fixing mechanism comprises a motor shell base (51), a rear end cover fixing seat (52), a motor shell fixing assembly and a thimble moving sleeve (54), the rack (1) is provided with a lower bottom plate (55), the motor shell base (51) is fixed on the lower bottom plate (55), the rear end cover fixing seat (52), the motor shell fixing assembly and the thimble moving sleeve (54) are all fixed on the motor shell base (51), a through hole for the lower thimble (63) to pass through is formed in the motor shell base (51), the thimble moving sleeve (54) is fixed on the through hole, the rear end cover fixing seat (52) is used for cooperating with the rear end cover (111) of the driving end of the motor shell (11) to limit, and the motor shell fixing assembly is used for fixing the side wall of the motor shell (11).

6. The permanent magnet motor stator-rotor assembling apparatus according to claim 5, characterized in that: The motor shell fixing assembly comprises a motor shell fixing seat (531) and a fixing key (532), the fixing key (532) is arranged on the motor shell fixing seat (531), and the fixing key (532) is in abutment with the side wall of the motor shell (11).

7. The permanent magnet motor stator-rotor assembling apparatus according to claim 5, characterized in that: The lower thimble mechanism comprises a lower servo motor (61), a lower electric cylinder (62) and a lower thimble (63), the lower servo motor (61) is fixedly connected with the lower electric cylinder (62), the lower electric cylinder (62) is fixed on the lower bottom plate (55), and the lower thimble (63) is connected with the output shaft of the lower electric cylinder (62).

8. The permanent magnet motor stator-rotor assembling apparatus according to claim 1, characterized in that: The top of the rack (1) is provided with a display screen (7) for displaying a control page.

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