CN218592827U - Permanent magnet motor stator and rotor assembly tool - Google Patents

Abstract

The utility model provides a permanent magnet motor stator and rotor assembly tool, which comprises a tool seat used for being connected with a stator and a sleeve used for being sleeved with a rotor bearing; the tool seat is provided with a positioning hole and an inserting hole, the positioning hole corresponds to the central hole of the stator, and the inserting hole corresponds to the mounting hole of the stator; the other end of the sleeve is inserted into the positioning hole, and the outer side pipe wall of the sleeve is tightly matched with the hole wall of the positioning hole; a limiting column is inserted into the insertion hole, and the aperture of the insertion hole is larger than the diameter of the limiting column; when the stator and the rotor are assembled, one end of the limiting column extends out of the top of the tool seat, and the other end of the limiting column is inserted into the mounting hole of the stator and the threaded hole of the rotor shaft sleeve in sequence; the outer wall of the limiting column is tightly matched with the hole wall of the mounting hole of the stator and the hole wall of the threaded hole of the rotor shaft sleeve at the same time, and forms a limiting structure used for limiting the stator to rotate relative to the rotor shaft sleeve together with the sleeve inserted in the positioning hole. By using the tool, the assembly process can be optimized, and the assembly efficiency is improved.

Description

Permanent magnet motor stator and rotor assembly tool

Technical Field

The utility model relates to a motor assembly fixture technical field especially relates to a permanent-magnet machine stator and rotor assembly fixture.

Background

As is well known, an electric machine is an electromagnetic device that converts electric energy and mechanical energy into each other through the medium of a magnetic field. In order to establish the air gap field within the machine necessary for energy conversion of the machine, there are two approaches. One is to pass excitation current inside the motor winding to generate a magnetic field, and the electrically excited motor needs to be supplied with external energy continuously to maintain current flow; the other is a novel rare earth permanent magnet to generate a magnetic field; because of the inherent characteristics of the permanent magnet, after the permanent magnet is magnetized in advance, a magnetic field required by energy interconversion can be established without external energy; the structure can simplify the motor, saves energy and is widely used in new energy automobiles. While permanent magnet motors have many advantages, they also present assembly difficulties; because the magnetic energy product of the rare earth permanent magnet material after being magnetized can reach very high and has very strong magnetism, the rotor of the permanent magnet motor has strong magnetism, the stator and the rotor attract each other when being assembled, the stator is easy to rub against the rotor so as to damage the insulation of a stator enameled wire, and simultaneously, the problems such as assembly danger, hidden danger of workpiece quality and the like are brought; therefore, in the process of assembling the permanent magnet motor stator and the rotor, after the axle center of the rotor rotating shaft is aligned with the axle center of the central hole of the stator, the stator and the rotor are assembled in a pressing way; in addition, in order to connect the assembled stator and rotor, bolts are inserted into the mounting holes of the stator and then screwed into the threaded holes of the rotor sleeve, which requires that the centers of the mounting holes of the stator and the rotor sleeve be aligned correspondingly.

In order to complete the assembly of the stator and the rotor of the motor, the conventional method is as follows: (1) Manually lifting the stator or binding the stator by a cable, then lifting the stator by a lifting device, and placing the stator above the rotor, wherein the working steps are as follows: stator hoisting; (2) After the hoisting operation of the stator is finished, manually finishing the alignment of the axle center of the rotor rotating shaft and the axle center of the central hole of the stator by naked eyes (the operation step is called as central positioning), and the corresponding alignment of the axle center of the mounting hole of the stator and the axle center of the threaded hole on the rotor axle sleeve (the operation step is called as circumferential positioning); (3) After the center positioning and circumference positioning operation of the stator and the rotor is finished, a downward pressing force is applied to the stator manually, the stator is driven to move downwards to approach the rotor until the housing of the rotor is sleeved on the outer side of the stator body, and the operation steps are as follows: "press fit assembly"; (4) After the stator and the rotor are assembled in a pressing mode, bolts are inserted into the mounting holes of the stator one by one, and are screwed in the threaded holes in the rotor shaft sleeve, and the operation step is called bolt screwing operation. And finally assembling the stator and the rotor of the motor.

Although the final assembly of the motor stator and the motor rotor can be completed by the assembly mode, the assembly efficiency is low, and the assembly line operation is not facilitated. The main points are as follows: in the operation of center positioning and circumference positioning of the stator and the rotor, because the operation mode of visual inspection positioning by naked eyes is adopted manually, the operation efficiency is very low, especially under the condition that the distance between the stator mounting hole and the threaded hole of the rotor shaft sleeve is far, the alignment operation of the two hole centers is very difficult to realize by visual inspection by naked eyes manually, the difficulty of the operation is greatly increased under the condition that the mutual attraction of the stator and the rotor is influenced by a strong magnetic field, and therefore, the requirement on the operation proficiency of operators is higher; secondly, in the operation of beating the bolt, because all need correspond in a plurality of mounting holes and the screw hole and insert and screw the bolt, and beat the bolt operation and have easy operation, require lowly to operating personnel's operation proficiency, but more consuming time's characteristics, if will beat the bolt operation and mix as an organic whole with the central location and the circumference location operation of realizing the stator and rotor, accomplish by same people, cause the worker phenomenon easily, this will greatly reduced operating efficiency, and be unfavorable for the pipelining.

Therefore, in the process of assembling the stator and the rotor of the motor, how to quickly realize the center positioning and the circumferential positioning of the stator and the rotor, how to solve the problem of the labor force caused by the bolt driving operation, improve the assembling efficiency, optimize the assembling process, and meet the requirements of assembly line operation have long been a technical problem to be solved by those skilled in the art.

In addition, because the stator is not provided with a part specially used for connecting the hoisting equipment, the stator cannot be installed on the hoisting equipment, and the installation mode of binding the stator by using the cable not only consumes time and has low operation efficiency, but also is difficult to keep the hole center of the central hole of the stator vertically downward when the stator is bound; moreover, in the step of press-fit assembly of the stator and the rotor, the press-fit force needs to be manually provided in the prior art to promote the press-fit assembly of the stator and the rotor, and the operation of sleeving the rotor housing on the outer side of the stator body by manually pressing down the stator under the influence of a strong magnetic field is very laborious.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem be: overcome at least one defect among the prior art, provide one kind and can realize stator and rotor's central positioning and circumference location fast, high-efficiently to and solve the nest worker problem that brings from this through peeling off the bolt operation step, improve assembly efficiency, optimize the assembly process, can satisfy the permanent-magnet machine stator and the rotor assembly fixture of assembly line work demand.

In order to solve the problems, the utility model provides a permanent magnet motor stator and rotor assembly tool, which comprises a tool seat used for being connected with a stator and a sleeve used for being sleeved with a rotor bearing; the tool seat is provided with a positioning hole and an inserting hole, the positioning hole corresponds to the central hole of the stator, and the inserting hole corresponds to the mounting hole of the stator; the other end of the sleeve is inserted into the positioning hole, and the outer side pipe wall of the sleeve is tightly matched with the hole wall of the positioning hole; a limiting column is inserted into the insertion hole, and the aperture of the insertion hole is larger than the diameter of the limiting column; when the stator and the rotor are assembled, one end of the limiting column extends out of the top of the tool seat, and the other end of the limiting column is inserted into the mounting hole of the stator and the threaded hole of the rotor shaft sleeve in sequence; the outer wall of the limiting column is simultaneously tightly matched with the hole wall of the mounting hole of the stator and the hole wall of the threaded hole of the rotor shaft sleeve, and forms a limiting structure used for limiting the stator to rotate relative to the rotor shaft sleeve together with a sleeve inserted in the positioning hole.

When permanent-magnet machine stator rotor assembles, the utility model discloses utilize the sleeve pipe of connection on rotor bearing to cooperate with the frock seat of connection on the stator, insert through the sheathed tube other end and establish and the tight fit in the locating hole of frock seat, can realize permanent-magnet machine's rotor and the central location of stator fast, realize that the principle as follows: because the tool seat and the stator are connected together, the tool seat and the stator form an integral structure, and similarly, the sleeve and the rotor are connected to form another integral structure; the utility model discloses a spacing post is inserted in the jack of frock seat to let the other end of spacing post insert in proper order and the screw hole of close fit in the mounting hole of stator and rotor axle sleeve, utilize spacing post and sleeve pipe can constitute the limit structure who is used for restricting the relative rotor axle sleeve rotation of stator jointly, thereby realize the circumference location of permanent-magnet machine's rotor and stator; the realization principle is as follows: because the tool base and the stator are of an integral structure, the sleeve and the rotor are of another integral structure, when the sleeve is inserted and tightly fitted in the positioning hole of the tool base, the stator and the rotor only can relatively rotate by taking the axis of the sleeve as an axis, at the moment, if the limiting posts are simultaneously inserted into the mounting holes of the stator and the threaded holes of the rotor shaft sleeve which are respectively positioned on two different integral structures, and the outer walls of the limiting posts are simultaneously tightly fitted with the hole walls of the two holes, the limiting posts and the sleeve can jointly form a two-point limiting structure and can limit the stator to rotate relative to the rotor shaft sleeve, if the jacks are provided with a plurality of holes, any two limiting posts correspondingly inserted into the jacks can also form the two-point limiting structure and can limit the stator to rotate relative to the rotor shaft sleeve.

Compared with the prior art, the utility model, useful part lies in: the utility model solves the problems of large positioning difficulty, low operation efficiency and high requirement on the operating proficiency of personnel when the alignment operation of two hole centers is finished by naked eyes because the distance between the mounting hole of the stator and the threaded hole of the rotor shaft sleeve is far, and by using the tool, anyone can quickly and efficiently finish the central positioning and the circumferential positioning of the stator and the rotor; in order to limit the relative rotation of the stator and the rotor shaft sleeve, the utility model adopts the scheme that the limiting post is inserted in the mounting hole of the stator and the threaded hole of the rotor shaft sleeve, compared with the scheme that the bolt is screwed in the mounting hole of the stator and the threaded hole of the rotor shaft sleeve in the prior art, the utility model discloses a scheme utilizes the limiting post to replace the bolt to play the same role of limiting the rotation of the stator relative to the rotor shaft sleeve, and can realize the separation of the operation step that the bolt screwing consumes working hours in the mounting hole of the stator and the threaded hole of the rotor shaft sleeve and other operation steps, thereby improving the operation efficiency and being beneficial to the production line; in addition, the limiting column is connected with the stator and the rotor in an inserting mode, and when bolts need to be screwed in the mounting hole of the stator and the threaded hole of the rotor shaft sleeve in the subsequent process, the limiting column can be pulled out from the mounting hole of the stator and the threaded hole of the rotor shaft sleeve quickly.

As an improvement, at least three jacks are arranged, and the jacks are circumferentially distributed on the tool seat by taking the hole center of the positioning hole as the circle center. After the structure is applied, a limiting structure for limiting the rotation of the stator relative to the rotor shaft sleeve can be formed by any one limiting column inserted in the jack and the sleeve inserted in the positioning hole of the tool base, and a limiting structure for limiting the rotation of the stator relative to the rotor shaft sleeve can be formed by any two limiting columns correspondingly inserted in the jack; meanwhile, at least three jacks are arranged, so that a triangular limiting structure with better stability can be formed by utilizing three limiting columns correspondingly inserted into the three jacks, and the relative rotation between the rotor and the stator can be better limited.

As an improvement, one end of the limiting column extending out of the top of the tool seat is connected through an annular block. When the bolts need to be screwed into the mounting holes of the stator and the threaded holes of the rotor shaft sleeve in the subsequent process, the limiting columns are pulled out from the mounting holes of the stator and the threaded holes of the rotor shaft sleeve and are correspondingly screwed into the bolts; in the subsequent bolt screwing process, the limiting columns can be pulled out one by one and then correspond to the bolts, or a plurality of limiting columns can be pulled out completely and then are screwed, when any one limiting column is pulled out, the rest limiting columns which are not pulled out and the sleeve or a plurality of limiting columns can jointly form a limiting structure for limiting the rotation of the stator relative to the rotor shaft sleeve, and at the moment, if the bolts are screwed in at the pulled-out limiting columns and then other limiting columns are pulled out, the limiting structure for limiting the rotation of the stator relative to the rotor shaft sleeve can exist all the time; when a plurality of limiting columns need to be pulled out, all the limiting columns can be pulled out simultaneously by utilizing the annular block, so that the operation time can be saved; in follow-up carrying out the spiral shell bolt operation, because the rotor is kept flat on the workstation, the stator is laid on rotor upper portion flatly, simultaneously, because the self weight of stator and rotor is all heavier, and has the magnetic attraction effect between the two, under the condition that does not have stronger external force or stator and rotor slope, relative rotation can not take place for stator and rotor shaft sleeve, at this moment, even if carry out the spiral shell bolt operation again after all dialling out a plurality of spacing posts and also can.

As an improvement, a sleeve is sleeved in a positioning hole of the tool seat, the other end of the sleeve is inserted into a central hole of the stator, and the outer side cylinder wall of the sleeve is tightly matched with the hole wall of the central hole of the stator; the other end of the sleeve is inserted into the sleeve, and the outer side wall of the sleeve is tightly matched with the inner side wall of the sleeve. The sleeve is arranged for realizing the alignment of the locating hole of the tool seat and the same axle center of the two hole centers of the central hole of the stator, and the tool seat and the stator are conveniently and quickly assembled together.

As the improvement, the horizontal cross section of the tool seat is square, grooves which are opened towards the outside are symmetrically arranged on two sides of the tool seat, and the grooves are used for clamping and connecting the tool seat. The arrangement of the groove is convenient for picking up the tool seat and the stator connected on the tool seat in a clamping mode, and is beneficial to mechanized assembly line operation; after the structure is applied, the fixture can be used for installing the stator on equipment with special functions (such as hoisting equipment and pressing equipment), and can realize hoisting of the stator and pressing assembly of the stator and the rotor through the special equipment without manual operation, so that the labor intensity of personnel is reduced, and the operation efficiency is improved.

As an improvement, first guide steps are symmetrically arranged at the notch of the groove; one end and the recess notch of first direction step are connected, and the other end extends the setting to the recess notch outside, and the interval size between the first direction step is greater than the opening width size of recess notch. The clamping jaw of the clamping device is convenient to clamp by the aid of the first guide steps and extends into the groove, and the clamping tool seat is convenient to clamp.

As an improvement, the tool seat is connected with a connecting block, the connecting block is positioned at the top of the groove and is provided with an open slot corresponding to the groove; the opening width size of recess is greater than the opening width size of open slot, and is formed with the hoist and mount step between the bottom face of recess and connecting block, and the hoist and mount step is extended to the open slot notch direction by the recess notch and sets up. When the tool seat is clamped by the clamping equipment and lifted by the lifting equipment, the clamping force close to the clamping equipment can not overcome the gravity of the tool seat and the stator connected to the tool seat, so that the tool seat is communicated with the stator and falls down together; the lifting step is arranged to be matched with a limiting part (the limiting part is usually a step formed by extending the lower end of the clamping jaw to the two sides of the clamping jaw body) arranged on the clamping jaw of the clamping equipment, so that the problems can be effectively solved.

As an improvement, the notch of the open slot is symmetrically provided with second guide steps; one end of each second guide step is connected with the notch of the open groove, the other end of each second guide step extends to the outer side of the notch of the open groove, and the distance between the second guide steps is larger than the opening width of the notch of the open groove. The clamping jaw of the clamping device can extend into the open slot due to the arrangement of the second guide step, and the clamping tool seat can be clamped conveniently.

Drawings

Fig. 1 is a first perspective view of a stator and a rotor of a prior art permanent magnet motor;

figure 2 is a second perspective view of a stator and rotor of a prior art permanent magnet motor;

FIG. 3 is a schematic structural view of a permanent magnet motor stator and a rotor after being assembled in the prior art;

FIG. 4 is a first perspective view of the present invention in use;

FIG. 5 is a second perspective view of the present invention in use;

FIG. 6 is an exploded view of the present invention in use;

FIG. 7 is a top view of the present invention in use;

fig. 8 isbase:Sub>A cross-sectional view taken along linebase:Sub>A-base:Sub>A of fig. 7.

Description of the reference numerals:

1. a tool seat; 11. positioning holes; 12. a jack; 13. a limiting post; 14. a ring block; 2. a sleeve; 3. a sleeve; 4. a groove; 41. a first guide step; 5. connecting blocks; 50. an open slot; 51. hoisting steps; 52. a second guide step; 61. a rotor; 610. a threaded hole; 611. a housing; 612. a bearing; 613. a shaft sleeve; 62. a stator; 620. mounting holes; 621. a placement chamber; 622. a central bore; 63. and (4) bolts.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

As shown in fig. 1 to 3, in the prior art, a permanent magnet motor for a new energy automobile includes a rotor 61 and a stator 62; the rotor 61 comprises a housing 611 provided with a permanent magnet, a bearing 612 arranged in the middle of the housing 611, and a shaft sleeve 613 positioned in the housing 611 and rotatably connected to the bearing 612; a plurality of threaded holes 610 (usually six) of the shaft sleeve 613 of the rotor 61 are circumferentially distributed on the shaft sleeve 613 by taking the shaft center of the bearing 612 as a circle center; the stator 62 is provided with a placing cavity 621 for accommodating the shaft sleeve 613 of the rotor 61, and the bottom wall of the placing cavity 621 is provided with a mounting hole 620 of the stator 62 and a central hole 622 of the stator 62; two ends of the mounting hole 620 of the stator 62 respectively penetrate through the top and the bottom of the stator 62 body, and the mounting hole 620 of the stator 62 is arranged corresponding to the threaded hole 610 of the shaft sleeve 613 of the rotor 61; both ends of the center hole 622 of the stator 62 penetrate the top and bottom of the body of the stator 62, respectively, and the center hole 622 of the stator 62 is disposed coaxially with the bearing 612 of the rotor 61. When assembling, first, it is ensured that the central hole 622 of the stator 62 is coaxially aligned with the bearing 612 of the rotor 61; then, by moving either the stator 62 or the rotor 61, the stator 62 and the rotor 61 are continuously close to each other until the housing 611 of the rotor 61 is sleeved on the body of the stator 62 and the shaft sleeve 613 of the rotor 61 is placed in the placing cavity 621 of the stator 62; finally, by rotating either the stator 62 or the rotor 61 until the hole centers of the screw holes 610 of the boss 613 of the rotor 61 are aligned in one-to-one correspondence with the hole centers of the mounting holes 620 of the stator 62, the bolts 63 are inserted from the side of the mounting holes 620 of the stator 62 and the bolts 63 are screwed with the screw holes 610 of the boss 613 of the rotor 61; to this end, the stator 62 and the rotor 61 are coupled together by bolts 63, completing the assembly of the stator 62 and the rotor 61.

As shown in fig. 1 to 8, in the present invention, the assembly tool for assembling a stator and a rotor of a permanent magnet motor includes a tool seat 1 for connecting with a stator 62, and a sleeve 2 for sleeving with a bearing 612 of a rotor 61; the tool seat 1 is provided with a positioning hole 11 and an insertion hole 12, the positioning hole 11 corresponds to a central hole 622 of the stator 62, and the insertion hole 12 corresponds to a mounting hole 620 of the stator 62; the other end of the sleeve 2 is inserted into the positioning hole 11, and the outer side pipe wall of the sleeve 2 is tightly matched with the hole wall of the positioning hole 11; the jack 12 is inserted with the limiting column 13, the aperture of the jack 12 is larger than the diameter of the limiting column 13, the structure ensures that the jack 12 has a large enough aperture for the bolt head of the bolt 63 to pass through, and provides an operation space for the subsequent process of screwing the bolt 63 in the jack 12; when the stator 62 and the rotor 61 are assembled, one end of the limiting column 13 extends out of the top of the tool seat 1, and the other end of the limiting column is inserted into the mounting hole 620 of the stator 62 and the threaded hole 610 of the shaft sleeve 613 of the rotor 61 in sequence; the outer wall of the limiting column 13 is tightly fitted with the hole wall of the mounting hole 620 of the stator 62 and the hole wall of the threaded hole 610 of the shaft sleeve 613 of the rotor 61 at the same time, and forms a limiting structure for limiting the rotation of the stator 62 relative to the shaft sleeve 613 of the rotor 61 together with the sleeve 2 inserted in the positioning hole 11.

When the permanent-magnet machine stator rotor assembles, the utility model discloses utilize the sleeve pipe 2 of connection on rotor 61 bearing 612 to cooperate with the frock seat 1 of connection on stator 62, insert through the other end of sleeve pipe 2 and establish and the tight fit in the locating hole 11 of frock seat 1, can realize permanent-magnet machine's rotor 61 and stator 62's central positioning fast, realize that the principle as follows: because the tool seat 1 and the stator 62 are connected together, the tool seat 1 and the stator 62 form an integral structure, and similarly, the sleeve 2 and the rotor 61 are connected to form another integral structure, at the moment, the sleeve 2 is inserted and tightly fitted in the positioning hole 11 of the tool seat 1, and the central positioning of the rotor 61 and the stator 62 can be naturally realized; the utility model discloses an insert spacing post 13 in the jack 12 of frock seat 1 to let the other end of spacing post 13 insert in proper order and closely match in the mounting hole 620 of stator 62 and the screw hole 610 of rotor 61 axle sleeve 613, utilize spacing post 13 and sleeve pipe 2 can constitute the limit structure who is used for restricting stator 62 to rotate relative to rotor 61 axle sleeve 613 jointly, thereby realize the circumference location of permanent-magnet machine's rotor 61 and stator 62; the realization principle is as follows: because the tool holder 1 and the stator 62 are an integral structure, and the sleeve 2 and the rotor 61 are another integral structure, when the sleeve 2 is inserted and tightly fitted in the positioning hole 11 of the tool holder 1, the stator 62 and the rotor 61 only rotate relative to each other with the axis of the sleeve 2 as an axis, at this time, if the limit posts 13 are simultaneously inserted into the mounting holes 620 of the stator 62 and the threaded holes 610 of the shaft sleeve 613 of the rotor 61 respectively located on two different integral structures, and the outer walls of the limit posts 13 are tightly fitted with the hole walls of the two holes at the same time, the limit posts 13 and the sleeve 2 can jointly form a two-point limit structure and can limit the relative rotation of the stator 62 and the shaft sleeve 613 of the rotor 61, and if there are a plurality of insertion holes 12, any two corresponding limit posts 13 inserted in the insertion holes 12 can also form a two-point limit structure and can limit the relative rotation of the stator 62 and the shaft sleeve 613 of the rotor 61.

Compared with the prior art, the utility model, useful part lies in: the utility model solves the problems that the positioning difficulty is large, the operation efficiency is low and the requirement on the operating proficiency of personnel is high when the alignment operation of two hole centers is finished by naked eyes because the distance between the mounting hole 620 of the stator 62 and the threaded hole 610 of the shaft sleeve 613 of the rotor 61 is far in the prior art, and by using the tool, anyone can quickly and efficiently finish the central positioning and the circumferential positioning of the stator 62 and the rotor 61; in order to limit the relative rotation of the stator 62 and the rotor 61 shaft sleeve 613, the utility model discloses take the scheme of inserting the spacing post 13 in the mounting hole 620 of the stator 62 and the screw hole 610 of the rotor 61 shaft sleeve 613, compare with the scheme of screwing the bolt 63 in the mounting hole 620 of the stator 62 and the screw hole 610 of the rotor 61 shaft sleeve 613 among the prior art, the utility model discloses a scheme utilizes the spacing post 13 to replace the bolt 63 and can play the effect of limiting the stator 62 to rotate relative to the rotor 61 shaft sleeve 613 equally, and can realize screwing the bolt 63 in the mounting hole 620 of the stator 62 and the screw hole 610 of the rotor 61 shaft sleeve 613 this kind of operation step that consumes man-hour and other operation steps's separation to can improve the operating efficiency, be favorable to the streamlined production; in addition, since the limit post 13 is connected with the stator 62 and the rotor 61 in an inserted manner, when the bolt 63 needs to be screwed in the mounting hole 620 of the stator 62 and the threaded hole 610 of the shaft sleeve 613 of the rotor 61 in a subsequent process, the limit post 13 can be quickly pulled out from the mounting hole 620 of the stator 62 and the threaded hole 610 of the shaft sleeve 613 of the rotor 61.

As shown in fig. 1 to 4, at least three insertion holes 12 are provided, and the insertion holes 12 are circumferentially distributed on the tool seat 1 around the center of the positioning hole 11. After the structure is applied, a limiting structure for limiting the rotation of the stator 62 relative to the shaft sleeve 613 of the rotor 61 can be formed by any one limiting column 13 inserted in the insertion hole 12 and the sleeve 2 inserted in the positioning hole 11 of the tool holder 1, and a limiting structure for limiting the rotation of the stator 62 relative to the shaft sleeve 613 of the rotor 61 can be formed by any two limiting columns 13 correspondingly inserted in the insertion hole 12; meanwhile, at least three insertion holes 12 are provided, so that a triangular limiting structure with better stability can be formed by using the three limiting columns 13 correspondingly inserted into the three insertion holes 12, and thus the relative rotation between the rotor 61 and the stator 62 can be better limited.

As shown in fig. 1 to 4, one end of the limiting column 13 extending out of the top of the tool seat 1 is connected through an annular block 14. When the bolts 63 need to be screwed into the mounting holes 620 of the stator 62 and the threaded holes 610 of the shaft sleeve 613 of the rotor 61 in the subsequent process, the limiting columns 13 are pulled out from the mounting holes 620 of the stator 62 and the threaded holes 610 of the shaft sleeve 613 of the rotor 61 and correspondingly screwed into the bolts 63; in the subsequent bolt 63 screwing process, the limiting posts 13 can be pulled out one by one and then correspond to the bolt 63, or the bolt 63 screwing operation can be performed after all the limiting posts 13 are pulled out, when any one limiting post 13 is pulled out, a limiting structure for limiting the rotation of the stator 62 relative to the shaft sleeve 613 of the rotor 61 can be formed between the other limiting posts 13 which are not pulled out and the sleeve 2 or between the limiting posts 13, and at the moment, if the bolt 63 is screwed in the pulled-out limiting post 13 and then other limiting posts 13 are pulled out, the limiting structure for limiting the rotation of the stator 62 relative to the shaft sleeve 613 of the rotor 61 can exist all the time; when a plurality of limiting columns 13 need to be pulled out, all the limiting columns 13 can be pulled out simultaneously by utilizing the annular block 14, so that the operation time can be saved; in the subsequent operation of screwing the bolt 63, because the rotor 61 is flatly placed on the workbench, the stator 62 is flatly placed on the upper part of the rotor 61, meanwhile, because the self weights of the stator 62 and the rotor 61 are heavier and the magnetic attraction effect exists between the stator 62 and the rotor 61, the shaft sleeve 613 of the stator 62 and the rotor 61 can not rotate relatively under the condition of no strong external force or the inclination of the stator 62 and the rotor 61, and at this time, the operation of screwing the bolt 63 can be performed even after the plurality of limit columns 13 are all pulled out.

As shown in fig. 1 to 3 and 6 to 8, a sleeve 3 is sleeved in the positioning hole 11 of the tool holder 1, the other end of the sleeve 3 is inserted into the central hole 622 of the stator 62, and the outer cylindrical wall of the sleeve 3 is tightly fitted with the hole wall of the central hole 622 of the stator 62; the other end of the sleeve 2 is inserted into the sleeve 3, and the outer side wall of the sleeve 2 is tightly matched with the inner side wall of the sleeve 3. The sleeve 3 is arranged for realizing the coaxial alignment of the positioning hole 11 of the tool holder 1 and the two hole centers of the central hole 622 of the stator 62, so that the tool holder 1 and the stator 62 can be assembled together conveniently and quickly.

As shown in fig. 1 to 3 and fig. 5 and 6, the horizontal section of the tool seat 1 is square, and two sides of the tool seat 1 are symmetrically provided with grooves 4 which are open to the outside, and the grooves 4 are used for clamping and connecting the tool seat 1. The arrangement of the groove 4 is convenient for picking up the tool seat 1 and the stator 62 connected on the tool seat 1 in a clamping mode, and is beneficial to mechanized assembly line operation; after the structure is applied, the fixture can be used for installing the stator 62 on equipment with special functions (such as hoisting equipment and pressing equipment), and can realize hoisting of the stator 62 and pressing assembly of the stator 62 and the rotor 61 through the special equipment without manual operation, so that the labor intensity of personnel is reduced, and the operation efficiency is improved.

As shown in fig. 1 to 3 and fig. 5 and 6, the notches of the grooves 4 are symmetrically provided with first guide steps 41; one end and the 4 notches of recess of first direction step 41 are connected, and the other end extends the setting to the 4 notches of recess outside, and the interval size between the first direction step 41 is greater than the opening width size of the 4 notches of recess. The clamping jaw of the clamping device can extend into the groove 4 due to the arrangement of the first guide step 41, and the clamping tool seat 1 can be clamped conveniently.

As shown in fig. 1 to 3 and fig. 5 and 6, the tool holder 1 is connected with a connecting block 5, the connecting block 5 is located at the top of the groove 4 and is provided with an open groove 50 corresponding to the groove 4; the opening width of the groove 4 is larger than that of the open groove 50, a hoisting step 51 is formed between the bottom surfaces of the groove 4 and the connecting block 5, and the hoisting step 51 extends from the notch of the groove 4 to the notch of the open groove 50. When the tool seat 1 is clamped by the clamping equipment and lifted by the lifting equipment, the clamping force of the clamping equipment can not overcome the gravity of the tool seat 1 and the stator 62 connected to the tool seat 1, so that the tool seat 1 is communicated with the stator 62 and falls down and is damaged; the lifting step 51 is arranged to cooperate with a limiting part (the limiting part is usually a step formed by extending the lower end of the clamping jaw to the two sides of the clamping jaw body) arranged on the clamping jaw of the clamping device, so that the problem can be effectively solved.

As shown in fig. 1 to 3 and fig. 5 and 6, the second guiding steps 52 are symmetrically arranged at the notches of the open grooves 50; one end of the second guiding step 52 is connected with the notch of the open slot 50, the other end extends to the outside of the notch of the open slot 50, and the distance between the second guiding steps 52 is larger than the opening width of the notch of the open slot 50. The arrangement of the second guide step 52 facilitates the clamping of the clamping device with the clamping jaw extending into the opening groove 50, so as to facilitate the clamping of the tool holder 1.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present invention.

Claims (8)

1. The utility model provides a permanent-magnet machine stator and rotor assembly fixture which characterized in that: the stator comprises a tool seat (1) connected with a stator and a sleeve (2) sleeved with a rotor bearing; the fixture seat (1) is provided with a positioning hole (11) and an insertion hole (12), the positioning hole (11) corresponds to a central hole of the stator, and the insertion hole (12) corresponds to a mounting hole of the stator; the other end of the sleeve (2) is inserted into the positioning hole (11), and the outer side pipe wall of the sleeve (2) is tightly matched with the hole wall of the positioning hole (11); a limiting column (13) is inserted into the insertion hole (12), and the aperture of the insertion hole (12) is larger than the diameter of the limiting column (13); when the stator and the rotor are assembled, one end of the limiting column (13) extends out of the top of the tool seat (1), and the other end of the limiting column is inserted into a mounting hole of the stator and a threaded hole of a rotor shaft sleeve in sequence; the outer wall of the limiting column (13) is simultaneously tightly matched with the hole wall of the mounting hole of the stator and the hole wall of the threaded hole of the rotor shaft sleeve, and forms a limiting structure used for limiting the stator to rotate relative to the rotor shaft sleeve together with the sleeve (2) inserted in the positioning hole (11).

2. The permanent magnet motor stator and rotor assembly tool of claim 1, characterized in that: the number of the insertion holes (12) is at least three, and the insertion holes (12) are circumferentially distributed on the tool seat (1) by taking the hole center of the positioning hole (11) as the circle center.

3. The assembly tooling for the stator and the rotor of the permanent magnet motor according to claim 2, characterized in that: one end of the limiting column (13) extending out of the top of the tool seat (1) is connected through an annular block (14).

4. The permanent magnet motor stator and rotor assembly tool of claim 1, characterized in that: a sleeve (3) is sleeved in a positioning hole (11) of the tool base (1), the other end of the sleeve (3) is inserted into a central hole of the stator, and the outer side cylinder wall of the sleeve (3) is tightly matched with the hole wall of the central hole of the stator; the other end of the sleeve (2) is inserted into the sleeve (3), and the outer side tube wall of the sleeve (2) is tightly matched with the inner side tube wall of the sleeve (3).

5. The assembly tooling for the stator and the rotor of the permanent magnet motor according to claim 1, characterized in that: the horizontal section of the tool seat (1) is square, grooves (4) which are open towards the outside are symmetrically arranged on two sides of the tool seat (1), and the grooves (4) are used for clamping and connecting the tool seat (1).

6. The permanent magnet motor stator and rotor assembly tool of claim 5, characterized in that: first guide steps (41) are symmetrically arranged at the notch of the groove (4); one end of each first guide step (41) is connected with the notch of the corresponding groove (4), the other end of each first guide step extends to the outer side of the notch of the corresponding groove (4), and the distance between the first guide steps (41) is larger than the opening width of the notch of the corresponding groove (4).

7. The assembly tooling for the stator and the rotor of the permanent magnet motor according to claim 6, characterized in that: the tool seat (1) is connected with a connecting block (5), the connecting block (5) is positioned at the top of the groove (4) and is provided with an open groove (50) which is arranged corresponding to the groove (4); the opening width size of recess (4) is greater than the opening width size of open slot (50), just recess (4) with be formed with hoist and mount step (51) between the bottom face of connecting block (5), hoist and mount step (51) by recess (4) notch to open slot (50) notch direction extends the setting.

8. The permanent magnet motor stator and rotor assembly tool of claim 7, characterized in that: the notch of the open slot (50) is symmetrically provided with second guide steps (52); one end of the second guide step (52) is connected with the notch of the open groove (50), the other end of the second guide step extends to the outer side of the notch of the open groove (50), and the distance between the second guide steps (52) is larger than the opening width of the notch of the open groove (50).

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