CN220210216U

CN220210216U - Tool for assembling stator and rotor of permanent magnet large-magnetic attraction motor

Info

Publication number: CN220210216U
Application number: CN202321371418.4U
Authority: CN
Inventors: 冯华; 陈�峰; 赵军; 何文静; 康小丽; 郭栓
Original assignee: Xi'an Micromotor Research Institute Co ltd
Current assignee: Xi'an Micromotor Research Institute Co ltd
Priority date: 2023-05-31
Filing date: 2023-05-31
Publication date: 2023-12-19
Anticipated expiration: 2033-05-31

Abstract

The utility model relates to the field of assembly of permanent magnet large-magnetic attraction motors, in particular to a tool for assembling a stator and a rotor of a permanent magnet large-magnetic attraction motor, which comprises a base, a left support, a right support, a height center adjusting device, a V-shaped stator fixing tool and a stator longitudinal movement transmission system, wherein the height center adjusting device is connected with the V-shaped stator fixing tool, and the positioning longitudinal movement transmission system drives the V-shaped stator fixing tool to be connected on the base to slide in parallel; when in use, the center of the inner hole of the stator is coaxially arranged with the center of the fixed long center. According to the utility model, the motor rotor is positioned between the left center and the right center by the two centers and kept still, the stator is fixed by the special positioning device to ensure concentricity of the stator and the rotor, and the stator is enabled to linearly move by the stator longitudinal movement transmission system, so that the aim of assembling the stator and the rotor is achieved, the assembling operation difficulty is reduced, the assembling quality and efficiency are effectively improved, and the assembling precision of the permanent magnet large magnetic attraction series motor can be further improved.

Description

Tool for assembling stator and rotor of permanent magnet large-magnetic attraction motor

Technical Field

The utility model relates to the field of assembly of permanent magnet large-magnetic attraction motors, in particular to a tool for assembling a stator and a rotor of a permanent magnet large-magnetic attraction motor.

Background

At present, no special equipment or tools are generally used for assembling permanent magnet motor stator and rotor in all permanent magnet motor manufacturers. The motor stator and rotor assembly of general small machine seat number all uses manual assembly, and the relatively big motor stator and rotor assembly all uses lifting means such as driving and other appurtenance to go on, wastes time and energy, and labor efficiency is not high, and the danger is great. There are a number of problems with manual assembly: because the permanent magnet of the rotor has strong magnetism, the rotor is impacted and adsorbed to the stator by the influence of magnetic pulling force in the manual assembly process, thereby causing damage to the rotor and the stator; in addition, due to the influence of strong magnetism, faults such as bore sweeping, magnetic steel damage, redundancy and the like are easily caused by the fact that the rotor and the stator are assembled in a non-concentric manner; the assembly speed of manual assembly is uncontrollable, so that the bearing is easy to impact, and the bearing is damaged; the manual assembly has the defects that the magnetic force generated by strong magnetism is large, and an assembler is easily injured by clamping, so that potential safety hazard is caused.

Disclosure of Invention

Aiming at the problem of lower assembly precision of a rotor and a stator in manual assembly in the prior art, the utility model provides a tool for assembling the stator and the rotor of a permanent magnet large-magnetic attraction motor, which is used for improving the assembly quality and efficiency of the permanent magnet motor and protecting the personal safety of assembly operation.

The utility model is realized by the following technical scheme:

the utility model provides a big magnetism suction motor stator of permanent magnetism instrument for rotor assembly, including base, left support, right support, altitude center adjusting device, V type stator fixed frock and stator longitudinal movement transmission system, left support and right support are fixed relatively to be set up on the base surface, are equipped with fixed long top on the right support, are equipped with live center on the left support, fixed long top and live center coaxial setting, the coaxial setting of electronic rotor is between fixed long top and live center, the coaxial setting of motor rotor is between fixed long top and live center; the V-shaped stator fixing tool is arranged between the left support and the right support, one end of the stator is connected with the fixed long center, and the other end of the stator is connected with the V-shaped stator fixing tool; the height center adjusting device is connected with the V-shaped stator fixing tool, and the positioning longitudinal movement transmission system drives the V-shaped stator fixing tool to be connected to the base and slide in parallel; when in use, the center of the inner hole of the stator is coaxially arranged with the center of the fixed long center.

Preferably, the base is provided with a sliding middle supporting plate, the middle supporting plate is arranged between the left support and the right support in a sliding manner, and the height center adjusting device and the positioning longitudinal movement transmission system are connected with the middle supporting plate.

Preferably, the height center adjusting device comprises a bottom plate, an adjusting base plate and an adjusting gasket, wherein the bottom plate is arranged on the middle supporting plate, the adjusting base plate is arranged on the bottom plate, the bottom of the V-shaped stator fixing tool is arranged on the adjusting base plate, and the adjusting gasket is positioned between the adjusting base plate and the bottom of the V-shaped stator fixing tool.

Preferably, the adjusting gaskets are provided with different thicknesses, and the adjusting gaskets are selected according to requirements when the adjusting gaskets are used.

Preferably, a plurality of parallel guide rails are arranged on the base, the left support and the right support are fastened on the guide rails, and the middle supporting plate is arranged on the guide rails in a sliding manner.

Preferably, the stator longitudinal movement transmission system comprises a smooth transmission system and a screw nut pair transmission system, wherein the screw nut pair of the screw pair transmission system is arranged at the bottom of the middle supporting plate, and the smooth transmission system is used for driving the screw nut pair.

Preferably, the screw transmission system comprises a screw, a rocker and an open-close nut, and the screw and the open-close nut are meshed to form a screw-nut pair; the driving end of the rocker is positioned at the outer side of the left support, and the output end of the rocker is connected with the screw rod.

Preferably, the smooth transmission system comprises a smooth, a slide carriage box and a plate support hand wheel, wherein the smooth is erected on the base through a bearing structure, and one end of the smooth is matched with the opening and closing nut; a rack is arranged below the guide rail, a plate supporting hand wheel is connected with the input end of the slide carriage box, and an output gear of the slide carriage box is meshed with the rack.

Preferably, the left support and the right support are matched with the guide rail through step surfaces; a first locking plate and a first screw are arranged below the left support, and the first screw penetrates through the first locking plate and the guide rail to be connected with the bottom of the left support; and a second locking plate and a third screw are arranged below the right support, and the third screw penetrates through the second locking plate and the guide rail to be connected with the bottom of the right support.

Compared with the prior art, the utility model has the following beneficial effects:

according to the tool for assembling the stator and the rotor of the permanent magnet motor with the large magnetic attraction force, disclosed by the utility model, the stator and the rotor of the permanent magnet motor are coaxially fixed through the center and the stator supporting device, the stator is enabled to move axially controllably by adopting the stator longitudinal movement transmission system, the stator and the rotor are guaranteed to move slowly and assembled concentrically, the stator and the rotor are prevented from being scratched and collided, and the assembly quality and the personal safety of operators are guaranteed. Meanwhile, the length of the center and the stator supporting device are adjustable, so that the motor assembly device can adapt to motor assembly of different large base numbers and lengths, and has certain universality. When the permanent magnet large-magnetic attraction series motor is used, the motor rotor is positioned between the left center and the right center by the two centers to keep static, the stator is fixed by the special positioning device to ensure concentricity of the stator and the rotor, and the stator is enabled to linearly move by the stator longitudinal movement transmission system, so that the assembly of the stator and the rotor is achieved, meanwhile, the assembly operation difficulty is greatly reduced, the assembly quality and the assembly efficiency are effectively improved, the whole assembly process is stable and reliable, and the assembly precision of the permanent magnet large-magnetic attraction series motor can be further improved.

Furthermore, because the stator and the rotor have large magnetic attraction force during assembly, the stator and the rotor are required to be restrained for ensuring the relative position during assembly, the stator fixing device fixes the position of the stator through an interface matched with the stator, the radial freedom degree of the stator is restrained, meanwhile, the screw thread mechanism has enough bearing capacity, the stator can be fixed on the middle supporting plate through a bottom plate and an adjusting backing plate connected with the stator fixing device, enough connection strength is provided, and the central equal height of the stator and the rotor is ensured.

Furthermore, a middle supporting plate screw nut pair and a ram structure are adopted, and a hand wheel rotates to enable the middle supporting plate to transversely move, so that the stator can radially and controllably move and adjust the center, and the stator and the rotor can be guaranteed to slowly move and concentrically assemble.

Furthermore, the adoption of the large plate removing hand wheel and the manual rocker can enable the axial moving speed of the stator to be controllable, labor is saved during operation of workers, and assembly efficiency is improved.

Further, due to the fact that the lengths of the stators and the lengths of the rotors of the motors of different types are different, different bending moments of the long tips can be caused due to the difference of magnetic attraction, the left support and the right support can freely adjust the distance in the guide rail groove on the premise that the assembly size is met, the supporting points of the long tips are as short as possible, deflection changes of the long tips can be greatly reduced, and collision of the stator and the rotor is prevented.

In conclusion, the utility model effectively prevents the collision between the motor stator and the motor rotor, reduces the rejection rate of parts, improves the assembly quality, generates good economic benefit, improves the assembly efficiency and the operation safety, and effectively reduces the manual operation difficulty.

Drawings

Fig. 1 is a schematic diagram of the whole structure of a tool for assembling a stator and a rotor of a permanent magnet large-magnetic attraction motor.

In the figure, 1, a base; 2. a first locking plate; 3. a right support; 4. a pressing plate; 5. live center; 6. a left support; 7. a bottom plate; 8. adjusting the backing plate; 9. fixing a long center; 10. a guide rail; 11. a screw rod; 12. a light bar; 13. a first screw; 14. a manual rocker; 15. a carriage box; 16. a plate support hand wheel; 17. a second screw; 18. a middle supporting plate; 19. opening and closing the nut; 20. a second locking plate; 21. a third screw; 22. and (5) welding surfaces.

Detailed Description

The utility model will now be described in further detail with reference to specific examples, which are intended to illustrate, but not to limit, the utility model.

The utility model discloses a tool for assembling a stator and a rotor of a permanent magnet large-magnetic attraction motor, which referring to fig. 1, comprises a base 1, a left support 6, a right support 3, a height center adjusting device, a V-shaped stator fixing tool and a stator longitudinal movement transmission system, wherein a plurality of parallel guide rails 10 are arranged on the base 1, the left support 6 and the right support 3 are oppositely arranged on the guide rails 10 on the surface of the base 1, and the left support 6 and the right support 3 are both positioned in a matched manner through step surfaces and are connected with the guide rails 10 through first screws 13. A first locking plate 2 and a first screw 13 are arranged below the left support 6, and the first screw 13 penetrates through the first locking plate 2 and the guide rail 10 to be connected with the bottom of the left support 6; a second locking plate 20 and a third screw 21 are arranged below the right support 3, and the third screw 21 penetrates through the second locking plate 20 and the guide rail 10 to be connected with the bottom of the right support 3. During assembly, the plane of the guide rail 10 is arranged between the lower planes of the left support 3 and the right support 3 and the locking plate, and the first screw 13 and the third screw 21 are respectively used for fastening and locking in a threaded manner. The center of the semicircular groove at the upper part of the right support 3 and the center of the boss at the lower part of the right support are designed accurately and concentrically, the center of the straight groove at the upper part of the left support 6 and the center of the boss at the lower part are designed accurately and concentrically, and the center of the straight groove and the center of the boss at the lower part of the left support 6 are positioned by means of accurate matching of the width dimension of respective bosses and the distance between two guide rails 10, so that the equal height setting and coaxial precision indexes of a long center and a live center 5 arranged on the left support 3 and the right support are ensured.

The right support 3 is provided with a fixed long center 9, the left support 6 is provided with a live center 5, the fixed long center 9 and the live center 5 are coaxially arranged, the fixed long center 9 in the embodiment penetrates through an R-shaped groove of the right support 3, the R-shaped groove below the pressing plate 4 is arranged on the fixed long center 9 for fixing, and then the fixed long center 9 is fastened by a screw. The live center 5 and the center seat are arranged on the left support 6, the live center 5 and the center seat are firmly integrated by manual arc welding, the live center 5 is positioned in a straight groove on the upper plane of the left support 6, and the two side surfaces fix the live center 5 on the left support 6 in an arc welding mode (a welding surface 22 shown in fig. 1) to form an integral structure. When the motor is used, the electronic rotor is coaxially arranged between the fixed long center 9 and the live center 5, and the motor rotor is coaxially arranged between the fixed long center 9 and the live center 5.

The V-shaped stator fixing tool is arranged between the left support 6 and the right support 3, one end of the stator is connected with the fixed long center 9, and the other end of the stator is connected with the V-shaped stator fixing tool; the height center adjusting device is connected with the V-shaped stator fixing tool, and the positioning longitudinal movement transmission system drives the V-shaped stator fixing tool to be connected to the base 1 for parallel sliding; when in use, the center of the inner hole of the stator is coaxially arranged with the center of the fixed long center 9.

The guide rail 10 of the base 1 is provided with a sliding middle supporting plate 18, the middle supporting plate 18 is arranged between the left support 6 and the right support 3 in a sliding way, and the height center adjusting device and the positioning longitudinal movement transmission system are connected with the middle supporting plate 18.

The height center adjusting device comprises a bottom plate 7, an adjusting base plate 8 and an adjusting gasket, wherein the bottom plate 7 is arranged on a middle supporting plate 18 through a second screw 17, the adjusting base plate 8 is arranged on the bottom plate 7 through the second screw 17, the bottom of the V-shaped stator fixing tool is arranged on the adjusting base plate 8, and the adjusting gasket is located between the adjusting base plate 8 and the bottom of the V-shaped stator fixing tool. Wherein, the adjusting gasket is provided with different thickness, and the adjusting gasket is selected according to the requirement when in use. In this embodiment, the adjusting pad 8 is positioned and disposed on the upper plane through a straight groove on the pad.

The stator longitudinal movement transmission system comprises a feed rod 12 transmission system and a screw rod 11 pair transmission system, a screw rod 11 nut pair of the screw rod 11 pair transmission system is arranged at the bottom of the middle supporting plate 18, and the feed rod 12 transmission system is used for driving the screw rod 11 nut pair. The screw 11 transmission system comprises a screw 11, a rocker and an open-close nut 19, and the screw 11 is meshed with the open-close nut 19 to form a screw 11 nut pair; the driving end of the rocker is positioned at the outer side of the left support 6, and the output end of the rocker is connected with the lead screw 11. The transmission system of the feed beam 12 comprises a feed beam 12, a slide carriage box 15 and a plate support hand wheel 16, wherein the feed beam 12 is arranged on the base 1 through a bearing structure, and one end of the feed beam 12 is matched with an opening and closing nut 19; a rack is arranged below the guide rail 10, a plate supporting hand wheel 16 is connected with the input end of the slide carriage box 15, and an output gear of the slide carriage box 15 is meshed with the rack.

The stator longitudinal movement transmission system can have two different transmission chain movement modes according to the situation. When the opening and closing nut 19 is disconnected, the transmission system is connected with the feed beam 12 to form feed beam 12 transmission, the gear in the slide carriage box 15 is meshed with the rack below the guide rail 10 to be converted into linear motion through the rotation of the plate support hand wheel 16, and meanwhile, the slide carriage box 15 drives the stator to move along the longitudinal direction; when the open-close nut 19 is closed, the open-close nut is disconnected with the feed rod 12 and is simultaneously connected with the feed rod 11 to form a feed rod 11 transmission chain, at the moment, the manual rocker 14 drives the feed rod 11 to rotate at one end and is meshed with the open-close nut 19 to form a feed rod 11 nut pair, and the rotary motion is converted into a straight line to drive the stator to move along a longitudinal straight line.

The utility model relates to a tool for assembling a stator and a rotor of a permanent magnet large-magnetic attraction motor, which comprises the following implementation principle:

the motor rotor is arranged between the live center 5 and the fixed long center 9 on the left support 3 and the right support 3, the stator is arranged on the fixed long center 9 and is connected with a positioning tool arranged on the middle supporting plate 18, fine adjustment is carried out by combining a height center adjusting device and a transverse center adjusting system to ensure that the stator and the rotor are coaxially arranged, and the stator longitudinal feeding transmission system is arranged on the side surface of the casting lathe bed and used for carrying out feeding operation of the stator to realize coaxial assembly of the stator and the rotor.

The stator and rotor assembly tool is currently suitable for the total assembly of permanent magnet servo motors with motor base numbers phi 180-300, the assembly precision is obviously improved, and the operation method is simple and reliable; the assembling tool and the process method have been applied and verified in the process of assembling the phi 272 machine base alternating current servo motor in batches at present, the assembling tool completely overcomes the acting force of large magnetic attraction of the stator and the rotor by means of the structural strength of the assembling tool, the accuracy of the tool is always kept in an intact state, the assembling accuracy of the stator and the rotor is ensured, and the actual assembling efficiency is improved.

The foregoing description of the preferred embodiment of the present utility model is not intended to limit the technical solution of the present utility model in any way, and it should be understood that the technical solution can be modified and replaced in several ways without departing from the spirit and principle of the present utility model, and these modifications and substitutions are also included in the protection scope of the claims.

Claims

1. The utility model provides a big magnetism suction motor stator of permanent magnetism instrument for rotor assembly, a serial communication port, including base (1), left side support (6), right side support (3), altitude center adjusting device, V type stator fixed frock and stator longitudinal movement transmission system, left side support (6) and right side support (3) are fixed relatively and are set up on base (1) surface, be equipped with fixed long top (9) on right side support (3), be equipped with live center (5) on left side support (6), fixed long top (9) and live center (5) coaxial setting, electronic rotor coaxial setting is between fixed long top (9) and live center (5), motor rotor coaxial setting is between fixed long top (9) and live center (5); the V-shaped stator fixing tool is arranged between the left support (6) and the right support (3), one end of the stator is connected with the fixed long center (9), and the other end of the stator is connected with the V-shaped stator fixing tool; the height center adjusting device is connected with the V-shaped stator fixing tool, and the positioning longitudinal movement transmission system drives the V-shaped stator fixing tool to be connected to the base (1) to slide in parallel; when in use, the center of the inner hole of the stator is coaxially arranged with the center of the fixed long center (9).

2. The tool for assembling the stator and the rotor of the permanent magnet large-magnetic attraction motor according to claim 1, wherein a sliding middle supporting plate (18) is arranged on the base (1), the middle supporting plate (18) is arranged between the left support (6) and the right support (3) in a sliding mode, and the height center adjusting device and the positioning longitudinal movement transmission system are connected with the middle supporting plate (18).

3. The tool for assembling the stator and the rotor of the permanent magnet large-magnetic attraction motor according to claim 2, wherein the height center adjusting device comprises a bottom plate (7), an adjusting base plate (8) and an adjusting gasket, the bottom plate (7) is arranged on the middle supporting plate (18), the adjusting base plate (8) is arranged on the bottom plate (7), the bottom of the V-shaped stator fixing tool is arranged on the adjusting base plate (8), and the adjusting gasket is located between the adjusting base plate (8) and the bottom of the V-shaped stator fixing tool.

4. The tool for assembling the stator and the rotor of the permanent magnet large-magnetic attraction motor according to claim 3, wherein the adjusting gaskets are provided with different thicknesses, and the adjusting gaskets are selected according to requirements when the tool is used.

5. The tool for assembling the stator and the rotor of the permanent magnet large-magnetic attraction motor according to claim 4, wherein a plurality of parallel guide rails (10) are arranged on the base (1), the left support (6) and the right support (3) are fastened on the guide rails (10), and the middle support plate (18) is slidably arranged on the guide rails (10).

6. The tool for assembling the stator and the rotor of the permanent magnet large-magnetic attraction motor according to claim 1, wherein the stator longitudinal movement transmission system comprises a feed rod (12) transmission system and a screw rod (11) pair transmission system, a screw rod (11) nut pair of the screw rod (11) pair transmission system is arranged at the bottom of the middle supporting plate (18), and the feed rod (12) transmission system is used for driving the screw rod (11) nut pair.

7. The tool for assembling the stator and the rotor of the permanent magnet large-magnetic attraction motor according to claim 6, wherein a transmission system of the screw (11) comprises the screw (11), a rocker and an opening and closing nut (19), and the screw (11) is meshed with the opening and closing nut (19) to form a screw (11) nut pair; the driving end of the rocker is positioned at the outer side of the left support (6), and the output end of the rocker is connected with the screw rod (11).

8. The tool for assembling the stator and the rotor of the permanent magnet large-magnetic attraction motor according to claim 7, wherein a transmission system of the feed rod (12) comprises the feed rod (12), a slide carriage box (15) and a plate support hand wheel (16), the feed rod (12) is arranged on the base (1) through a bearing structure frame, and one end of the feed rod (12) is matched with the opening and closing nut (19); a rack is arranged below the guide rail (10), a plate supporting hand wheel (16) is connected with the input end of the slide carriage box (15), and an output gear of the slide carriage box (15) is meshed with the rack.

9. The tool for assembling the stator and the rotor of the permanent magnet large-magnetic attraction motor according to claim 1, wherein the left support (6) and the right support (3) are matched with the guide rail (10) through step surfaces; a first locking plate (2) and a first screw (13) are arranged below the left support (6), and the first screw (13) penetrates through the first locking plate (2) and the guide rail (10) to be connected with the bottom of the left support (6); the second locking plate (20) and the third screw (21) are arranged below the right support (3), and the third screw (21) penetrates through the second locking plate (20) and the guide rail (10) to be connected with the bottom of the right support (3).