CN113890283A - Flexible automatic assembling mechanism and method for automobile driving motor - Google Patents

Abstract

The invention discloses a flexible automatic assembling mechanism and method for an automobile driving motor. This attach together mechanism is including the stator location frock that is used for placing the stator and closes the piece, a rotor location frock that is used for placing the rotor and closes the piece, a frock moving mechanism for moving stator location frock and rotor location frock respectively to attaching together the station, and attach together motor mechanism, attach together motor mechanism and include the clamp plate, a stator moving mechanism and the guide bar that is used for driving the clamp plate along attaching together motor axial direction reciprocating motion, the clamp plate sets up at the top that attaches together the station, the bottom surface of clamp plate is provided with the stator clamping mechanism who is used for pressing from both sides tight fixed stator and closes the piece, the guide bar slides and runs through the clamp plate, and can stretch out and draw back the regulation length. When attaching together, will earlier with the guide bar extension with the rotor closes the coaxial fixed of pivot of piece, keep the pivot can not rock, also can lead to the removal that clamp plate and stator closed the piece, effectively avoid deciding, the rotor attaches together the absorption scraping of process, improve assembly quality.

Description

Flexible automatic assembling mechanism and method for automobile driving motor

Technical Field

The invention relates to the technical field of motor assembly, in particular to a flexible automatic assembling mechanism and method for an automobile driving motor.

Background

The way that present single motor stator, rotor attach together does: adopt the stator earlier and make central location with the back end cover rotation chamber in the end cover closes the piece, then with its axial fixity, the rotor is got to rethread three-jaw and top form clamp, reciprocate through the rotor and realize deciding, the rotor attaches together, this assembly mode can only be fixed in the one end of rotor pivot, because the permanent magnet of stator has strong magnetism, can lead to deciding, the rotor adsorbs the scraping to and the rotor spindle nose bears the lever power, can't guarantee motor assembly quality.

In addition, two unification driving motor of present mainstream, it utilizes reduction gear suspension hole to do profile modeling location and axial support to be the rotor with the reduction gear complex usually, at stator complex excircle design locating hole and clamping boss, press from both sides tight stator module excircle through embracing the mechanism and press from both sides, it reciprocates to drive stator module, realize that the stator rotor attaches together, this kind of mode of attaching together is attaching together the in-process, the pivot of rotor complex is unfixed, also there is the deciding, the risk of scraping is inhaled mutually to the rotor, and stator complex excircle must possess clamping location boss, assembly quality can't guarantee and equipment flexibility is low.

Disclosure of Invention

The invention aims to solve the technical problem of providing a flexible automatic assembling mechanism and method for an automobile driving motor.

In order to solve the technical problem, the flexible automatic assembling mechanism for the automobile driving motor comprises a stator positioning tool, a rotor positioning tool, a tool moving mechanism and an assembling motor mechanism, wherein the stator positioning tool is used for placing a stator assembly and circumferentially positioning the stator assembly according to the assembling posture, the rotor positioning tool is used for placing a rotor assembly and circumferentially positioning the rotor assembly according to the assembling posture, the tool moving mechanism is used for respectively moving the stator positioning tool and the rotor positioning tool to the assembling station, the assembling motor mechanism comprises a pressing plate, a stator moving mechanism and a guide rod, the pressing plate is arranged at the top of the assembling station, the plane of the pressing plate is perpendicular to the axial direction of the assembling motor, the stator moving mechanism is used for driving the pressing plate to reciprocate along the axial direction of the assembling motor, the bottom surface of clamp plate is provided with stator clamping mechanism, stator clamping mechanism is used for pressing from both sides tight fixed stator and closes the piece, the guide bar slides and runs through the clamp plate, and can stretch out and draw back and adjust length, can close the coaxial fixed of pivot of piece with the rotor after the guide bar extension.

In the assembling mechanism, when the motor is assembled at the assembling station, the guide rod is extended to penetrate through the pressing plate along the axis of the stator assembly and be coaxially fixed with the rotating shaft of the rotor assembly, and then the guide rod is kept fixed, so that the assembling movement of the stator assembly is guided. And then make the axis of attaching together the in-process deciding, the rotor coincide all the time and be in the same place, keep good axiality, the pivot of the fixed rotor closes the piece is fixed still moreover, effectively avoids the absorption scraping between deciding, the rotor, improves the quality of assembly.

As an improvement of the assembling mechanism, the bottom surface of the pressure plate is provided with a guide seat which can be embedded with the rear end cover rotating chamber of the stator assembly. Through before stator clamping mechanism presss from both sides and gets stator and closes the piece, utilize the guide holder as location structure, with the rear end cover of stator and close the piece and become the chamber gomphosis soon to carry out the central positioning of axis to the stator closes the piece, guarantee to fix a position accurately. In addition, in the process of moving after clamping, the stator assembly can always keep the combined posture by the mutually embedded structures, and the quality of the motor combination is improved.

In the above technical solution with the guide holder, the guide holder includes a cylindrical main body, and the guide rod is coaxially slidably fitted in a center hole of the guide holder. Because the back end cover of stator closes the piece and revolves the change room and be the cylinder cavity, and the axis that revolves the change room is the axis that the stator closed the piece, consequently the guide holder must also have columniform main part, through making the guide bar slide and pass the centre bore of guide holder, can guarantee that the guide bar aligns with the pivot of stator closed the piece to make stator closed the piece and the rotor closed the piece when closing, have good axiality.

As another improvement of the assembling mechanism of the present invention, the stator moving mechanism includes a servo electric cylinder mechanism and a first guide rail, the first guide rail is arranged on one side of the pressing plate along the axial direction of the assembling motor, and the servo electric cylinder mechanism drives the pressing plate to slide back and forth along the first guide rail.

The servo electric cylinder mechanism is adopted for driving, accurate speed, position and thrust control are obtained, high-precision linear motion is achieved, the movable stator assembly is guaranteed to be still assembled in an attitude, and axis positioning is accurate. In addition, the corresponding relation between the pressure and the displacement of the servo hydraulic system can be monitored in real time in the process of combining the movable stator combined parts, whether foreign matter clamping stagnation exists in the combining process or not, whether press fitting is in place or not and the like are identified, whether the combined products are qualified or not is judged, and the phenomenon that the defective products flow to the next procedure is avoided.

As a further improvement of the assembling mechanism of the present invention, the stator clamping mechanism includes a radial cylinder group for radially clamping the outer circumference of the stator pack and an axial cylinder group for axially clamping the stator pack together with the pressure plate. Adopt the cylinder subassembly to press from both sides tight fixedly, the response is quick, and changes the cylinder clamping jaw that corresponds according to the product appearance, and the quick change of cooperation location frock can satisfy the quick use of different products, and the degree of flexibility is high. In addition, the fixing mode of the air cylinder is flexible, the fixing position can be easily adjusted, the air cylinder is suitable for different motor models, and the flexibility of equipment utilization is further improved.

In the above technical scheme of the stator moving mechanism using the radial cylinder group, the radial cylinder group includes three radial cylinders arranged at intervals along the circumferential direction of the stator assembly, a connecting rod is arranged between the radial cylinder and the pressure plate, the cylinder body of the radial cylinder is fixed on the connecting rod, and the sliding block of the radial cylinder slides along the radial direction of the stator assembly. Adopt three radial cylinder to fix the excircle of stator assembly, can hold the closed posture of stator assembly automatically to the heart, and the action is quick, and the centre gripping is reliable.

In the above technical solution of the stator moving mechanism using the axial cylinder group, the axial cylinder group includes three rotary cylinders arranged at intervals along the circumferential direction of the stator assembly, a cylinder body of the rotary cylinder is fixedly connected with the pressure plate, and the rotary block of the rotary cylinder slides along the axial direction of the stator assembly after rotating. When the side wall of the motor stator assembly is provided with the boss structure, the three rotary cylinders are adopted to firstly rotate the rotary block and embed the boss, then the rotary block is upwards contracted to drag the stator assembly, and the stator assembly is firmly fixed on the bottom surface of the pressing plate. The whole axial fixing structure is simple, the flexibility degree is high, and the clamping is reliable.

As a further improvement of the assembling mechanism of the present invention, the tool moving mechanism includes a driving mechanism, a second guide rail and a tray, the second guide rail is laid at the bottom of the pressing plate, the plane of the second guide rail is parallel to the plane of the pressing plate, the driving mechanism drives the tray to move on the second guide rail, and the stator positioning tool and the rotor positioning tool are fixed on the tray. Preferably, the driving mechanism is driven by a servo motor lead screw transmission mechanism. Whole frock moving mechanism adopts servo lead screw transmission, can guarantee that the location after the removal is accurate, in addition, utilizes the synchronous removal stator location frock of same tray and rotor location frock, accomplishes actions such as material loading, aversion, ejection of compact in step, shortens to attach together the process beat, raises the efficiency.

In order to solve the technical problem, the invention provides an automatic flexible assembling method for an automobile driving motor based on an assembling mechanism, which comprises the following steps:

at a feeding station, respectively placing a stator assembly and a rotor assembly on a stator positioning tool and a rotor positioning tool;

moving a stator positioning tool carrying a stator assembly to an assembling station;

the stator moving mechanism drives the pressing plate to move downwards until the pressing plate carries out center positioning on a rear end cover rotating chamber of the stator assembly through the guide seat, then the stator clamping mechanism clamps the stator assembly on the stator positioning tool, and then the pressing plate is driven to return upwards;

moving a rotor positioning tool carrying a rotor assembly to an assembling station;

the telescopic cylinder drives the guide rod to penetrate through the guide seat and extend downwards until the guide rod is in contact embedding with the end part of the rotating shaft of the rotor assembly;

and the stator moving mechanism drives the pressing plate to move downwards along the guide rod to drive the stator assembly to move towards the rotor assembly, so that the assembly is completed.

In the method for assembling the stator and the rotor, before the stator assembly is assembled and moved, the guide rod is coaxially fixed on the rotating shaft of the rotor assembly, then the stator assembly is moved downwards along the guide rod, the guide rod and the rotating shaft are fixed during the process, the stator and the rotor in the assembling process can be guaranteed to have good coaxiality, no adsorption scraping exists, and the assembling quality is improved.

To sum up, adopt above-mentioned automobile drive motor flexibility to attach together mechanism and method automatically, attach together the in-process, fix the pivot that the rotor closed the piece through the guide bar, avoid the fixed process of attaching together appear changeing, adsorb the scraping between the stator to the guide bar also can lead the removal of attaching together of stator closed the piece, when guaranteeing to attach together, changeing, have good axiality between the stator, improve the assembly quality of motor. In addition, the stator assembly is positioned by adopting the center of the rear end cover rotary variable chamber, the positioning is accurate and reliable, the excircle of the stator assembly is automatically centered, clamped and fixed by adopting the air cylinder, the clamping jaws are quickly changed, the stator clamping mechanism can realize the universality of different motors, and the flexibility degree is high; the servo device is used as a driving part of the tool moving mechanism and the stator moving mechanism, so that the sliding table and the mounting plate can accurately move, accurate positioning is guaranteed after movement, and the assembling quality is further improved.

Drawings

In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a partially enlarged view of the telescopic cylinder driving guide bar of the present invention.

FIG. 3 is a schematic view of the bottom surface of the platen of the present invention.

Fig. 4 is a schematic structural view of the stator clamping mechanism of the present invention.

Fig. 5 is a schematic structural diagram of the tool moving mechanism of the present invention.

In the figure, 1, a stator positioning tool; 2. a rotor positioning tool; 3. a tool moving mechanism; 31. a drive mechanism; 32. a second guide rail; 33. a tray; 41. a stator assembly; 42. a rotor assembly; 51. pressing a plate; 52. a stator moving mechanism; 521. a servo electric cylinder mechanism; 522. a first guide rail; 53. a guide bar; 531. a sleeve; 54. a stator clamping mechanism; 541. a radial cylinder; 542. a connecting rod; 543. a rotating cylinder; 55. a telescopic cylinder; 56. a guide seat.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto.

Further, it should be noted that as used in the following description, the terms "front," "back," "left," "right," "top," "bottom," "upper" and "lower" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in figure 1, the invention relates to a flexible automatic assembling mechanism of an automobile driving motor, which comprises a stator positioning tool 1, a rotor positioning tool 2, a tool moving mechanism 3 and an assembling motor mechanism, wherein the stator positioning tool 1 is used for placing a stator assembly 41 and circumferentially positioning the stator assembly 41 according to the posture during assembling, the rotor positioning tool 2 is used for placing a rotor assembly 42 and circumferentially positioning the rotor assembly 42 according to the posture during assembling, the tool moving mechanism 3 is used for respectively moving the stator positioning tool 1 and the rotor positioning tool 2 to the assembling station, the assembling motor mechanism comprises a pressure plate 51, a stator moving mechanism 52 and a guide rod 53, the pressure plate 51 is arranged at the top of the assembling station, the plane of the pressure plate 51 is arranged perpendicular to the axial direction of the assembling motor, the stator moving mechanism 52 is used for driving the pressure plate 51 to reciprocate along the axial direction of the assembling motor, the bottom surface of the pressure plate 51 is provided with a stator clamping mechanism 54, the stator clamping mechanism 54 is used for clamping and fixing the stator assembly 41, the guide rod 53 penetrates through the pressure plate 51 in a sliding mode and can be adjusted in length in a telescopic mode, and the guide rod 53 can be coaxially fixed with the rotating shaft of the rotor assembly 42 after being extended. The stator assembly 41 includes a motor stator and a rear end cover portion, and the rotor assembly 42 includes a motor rotor and a reducer portion.

For the sake of easy understanding of the assembly process, in fig. 1, three stator assemblies 41 are shown in total, in each case three positions of the overall assembly process: the first is a feeding station, and a stator assembly 41 is placed on the stator positioning tool 1; the second is the top of the assembling station, that is, a stator assembly 41 is held at the bottom of the pressing plate 51 by a stator clamping mechanism 54; the third is a discharging station (also a loading station), the assembled motor is placed on the rotor positioning tool 2, and the top is a stator assembly 41.

During the use, at first place stator closes piece 41 on stator location frock 1 with the manipulator, be equipped with the standing groove that agrees with mutually with the terminal surface of stator closes piece 41 on stator location frock 1, or set up a plurality of strong points according to the assembly benchmark, be used for holding stator closes piece 41 to make the axis of stator close piece 41 be vertical state. Similarly, the rotor assembly 42 is placed on the rotor positioning tool 2 by a manipulator, and the rotating shaft of the rotor assembly is kept vertical, so that the stator assembly 41 and the rotor assembly 42 are circumferentially fixed and fixed, and pre-positioning is realized. Then the tool moving mechanism 3 moves the stator positioning tool 1 with the stator assembly 41 placed thereon to an assembling station (namely, the bottom of the pressing plate 51); next, the pressing plate 51 is moved downward, the stator assembly 41 is gripped by the downward movement of the stator clamping mechanism 54, and the pressing plate 51 is moved back to the top of the assembling station. Then the tool moving mechanism 3 moves the rotor positioning tool 2 with the rotor assembly 42 placed on the tool moving mechanism to an assembly station; then, the guide rod 53 is extended first, and the guide rod 53 is fixed to the end of the rotating shaft of the rotor assembly 42 by passing through the pressing plate 51 along the axis of the stator assembly 41. Then, the pressing plate 51 is moved down along the fixed guide bar 53, and the stator assembly 41 is attached to the rotor assembly 42. And finally, the tool moving mechanism 3 is utilized to move the rotor positioning tool 2, and the motor which is assembled is moved out of the assembling station to be unloaded.

In the process of motor assembling, through keeping guide bar 53 fixed, make stator close the piece 41 and close the piece 42 and move towards the rotor along guide bar 53, thereby realize utilizing a guide bar 53 that closes the coaxial fixed of pivot of piece 42 with the rotor, close the piece 41 and close the removal to leading to the assembling of stator, guarantee that the stator that closes piece 41 and rotor and close piece 42 and have reliable concentricity, and the pivot that the piece 42 closes the piece 42 of rotor is also fixed motionless at the in-process that closes, can guarantee to close the in-process and decide, the rotor does not have the absorption scraping.

As shown in fig. 2 and 3, a guide holder 56 is provided on the bottom surface of the pressure plate 51, and the guide holder 56 can be fitted into the rear end cover rotation chamber of the stator assembly 41. Preferably, the guide holder 56 includes a cylindrical body, and the guide rod 53 is coaxially slidably fitted in a center hole of the guide holder 56.

The rear end cover rotating chamber of the stator assembly 41 is the end position of the motor rotating shaft, and the rotating transformer is not installed when the motor is assembled, so that a corresponding cylindrical rotating chamber is left. When the stator assembly 41 is grabbed from the stator positioning tool 1, the rotary transformation chamber is firstly matched with the guide seat 56 of the protruding pressing plate 51, so that the accurate center positioning of the stator is ensured. In addition, the guide seat 56 is also cylindrical, the guide rod 53 coaxially slides through the central hole of the guide seat, so that the axis of the guide rod 53 is overlapped with the axis of the stator combined part 41, and the guide rod 53 is automatically nested with the rotating shaft of the rotor combined part 42 in the process of extending downwards, the structural design is ingenious, the axis of the assembled stator combined part 41 and the axis of the rotor combined part 42 are always aligned, and the good coaxiality is achieved.

As shown in fig. 2, the stator moving mechanism 52 includes a servo-electric cylinder mechanism 521 and a first guide rail 522, the first guide rail 522 is arranged on one side of the platen 51 in the on-device motor axial direction, and the servo-electric cylinder mechanism 521 drives the platen 51 to slide reciprocally along the first guide rail 522. The servo cylinder mechanism 521 and the telescopic cylinder 55 are fixed side by side on a top plate of the apparatus, the driving shaft passes through the top plate and is fixed on the pressing plate 51, and the two first guide rails 522 are fixed on the back of the pressing plate 51 for guiding. The servo electric cylinder mechanism 521 is adopted for driving, so that accurate speed, position and thrust control is obtained, high-precision linear motion is realized, and accurate axis positioning after the stator assembly 41 is moved is ensured. In addition, in the process of combining the movable stator assembly 41, the corresponding relation between the pressure and the displacement of the servo hydraulic system can be monitored in real time, whether foreign matter is stuck and whether press-fitting is in place or not in the combining process is further identified, and whether the combined product is qualified or not is judged.

As shown in fig. 2, a telescopic cylinder 55 is provided at the top end of the guide rod 53, the telescopic cylinder 55 pushes the guide rod 53 to be telescopic, a sleeve 531 is provided at the bottom end of the guide rod 53, and the sleeve 531 can be fitted to the end of the rotating shaft of the rotor assembly 42. The guide rod 53 is driven to move up and down through a telescopic cylinder 55 vertically fixed on the top plate of the equipment, so that the guide rod stretches. During assembling, the guide rod 53 is moved downwards to penetrate through the pressure plate 51 along the axis of the stator assembly 41, then the pressure plate is contacted with the rotating shaft of the rotor assembly 42 at the assembling station and is fixed with the rotating shaft in a nested manner through the structure of the sleeve 531 at the tail end, and then the pressure plate 51 is moved along the guide rod 53, so that the stator assembly 41 and the rotor assembly 42 are assembled into a motor. Thereby guarantee that the stator that attaches together closes piece 41 and rotor and closes piece 42 and have reliable concentricity, and the pivot that the rotor closes piece 42 is at the in-process that attaches together also fixed motionless, effectively avoids attaching the scraping of in-process stator, rotor that attaches together. The guide rod 53 is driven by an air cylinder, the action response is quick, the structure is simple and feasible, and the sleeve 531 structure at the end part is easy to nest with the rotating shaft.

As shown in fig. 4, the stator clamping mechanism 54 includes a radial cylinder group for radially clamping the outer circumference of the stator pack 41 and an axial cylinder group for axially clamping the stator pack 41 together with the pressure plate 51. When grabbing stator combination spare 41 from stator location frock 1, come the fixed clamp stator combination spare 41 from radial and axial two directions, ensure to grab that the process is fixed firm, and guarantee that the stator combination spare 41 attaches together the gesture unchangeably, the axis location is accurate.

Alternatively, as shown in fig. 3, the radial cylinder group includes three radial cylinders 541 arranged at intervals along the circumferential direction of the stator assembly 41, a connecting rod 542 is disposed between the radial cylinders 541 and the pressure plate 51, the cylinder body of the radial cylinder 541 is fixed on the connecting rod 542, and the sliding blocks of the radial cylinders 541 slide along the radial direction of the stator assembly 41. Radial cylinder 541 is fixed on vertical connecting rod 542 through the L template, makes radial cylinder 541 main part keep the level, promotes slider horizontal movement to make three radial cylinder 541 press from both sides its excircle simultaneously along three directions of stator assembly 41 a week, have the function of self-centering, guarantee that the axis of stator assembly 41 keeps vertical.

Optionally, the axial cylinder group includes three rotary cylinders 543 arranged at intervals along the circumferential direction of the stator assembly 41, the cylinder body of the rotary cylinder 543 is fixedly connected with the pressure plate 51, and after the rotary block of the rotary cylinder 543 rotates, the rotary block slides along the axial direction of the stator assembly 41. The cylinder body of the rotary cylinder 543 is directly and vertically fixed on the pressing plate 51, when in use, the rotary cylinder 543 extends downwards to swing the rotary block, so that the rotary block is embedded and aligned with the boss on the side wall of the stator assembly 41, and the rotary block is arranged below; then, the rotating block is retracted upward, the stator assembly 41 is held, and the stator assembly 41 is axially fixed on the bottom surface of the pressing plate 51.

As shown in fig. 5, the tooling moving mechanism 3 includes a driving mechanism 31, a second guide rail 32 and a tray 33, the second guide rail 32 is laid at the bottom of the pressing plate 51, the plane of the second guide rail 32 is parallel to the plane of the pressing plate 51, the driving mechanism 31 drives the tray 33 to move on the second guide rail 32, and the stator positioning tooling 1 and the rotor positioning tooling 2 are fixed on the tray 33. Preferably, the driving mechanism 31 is a servo motor screw transmission mechanism.

The second guide rail 32 is laid on the horizontal workbench in a straight manner, a servo motor lead screw transmission mechanism is arranged on one side of the second guide rail 32, and the tray 33 is driven to move in a reciprocating manner and moves from the feeding station to the combining station. Because stator location frock 1 and rotor location frock 2 are fixed on same tray 33, consequently, after the material loading station material loading simultaneously, will combine 41 with the stator earlier and move to the station of combining together, utilize the stator clamping mechanism 54 who attaches together motor mechanism to snatch, then will combine 42 with the rotor and move to the station of combining together, carry out the pressfitting, at last the bulk movement to the material loading station, with the material loading again after the ejection of compact of finished product motor. Adopt servo motor drive, can guarantee that the location after the removal is accurate, stator closes piece 41 and rotor and closes a material loading of piece 42 simultaneously, accomplishes and attaches together, raises the efficiency greatly, saves process time.

The invention relates to an automobile driving motor flexible automatic assembling method based on the assembling mechanism, which comprises the following steps:

s01: and (4) feeding. At the feeding station, the stator assembly 41 and the rotor assembly 42 are respectively placed on the stator positioning tool 1 and the rotor positioning tool 2. Be equipped with the standing groove that agrees with the terminal surface of stator closes the piece 41 mutually on stator location frock 1, or set up a plurality of strong points according to the assembly benchmark for hold stator closes the piece 41, make the axis that stator closed the piece 41 be vertical state, keep closing the gesture. Similarly, the rotor positioning tool 2 can also keep the combined posture of the rotor combination piece 42.

S02: and (6) feeding. And moving the stator positioning tool 1 carrying the stator assembly 41 to an assembling station. Stator assembly 41 is fed to the assembly station.

S03: the stator assembly 41 is gripped. The stator moving mechanism 52 drives the pressing plate 51 to move downwards to the assembling station until the pressing plate 51 performs center positioning on the rear end cover rotating chamber of the stator assembly 41 through the guide seat 56, then clamps the stator assembly 41 on the stator positioning assembly 1 through the stator clamping mechanism 54, and then drives the pressing plate 51 to return upwards to clamp the stator assembly 41. The motor mechanism that attaches together grabs stator assembly 41 to the top of the station that attaches together and prepares for the action of attaching together to be the material.

S04: and (6) feeding. And moving the rotor positioning tool 2 carrying the rotor assembly 42 to an assembling station. The rotor pack 42 is fed to the assembly station in preparation for the assembly action.

S05: the guide bar 53 is connected. The telescopic cylinder 55 drives the guide rod 53 to pass through the central hole of the guide seat 56 and extend downwards until the guide rod is in contact fit with the end part of the rotating shaft of the rotor assembly 42. The guide rod 53 is extended and fixed coaxially with the rotation shaft of the rotor assembly 42, and is prepared for guiding the assembling action.

S06: and assembling to form the motor. Keeping the guide bar 53 fixed, the stator moving mechanism 52 drives the press plate 51 to move downward along the guide bar 53, and the stator assembly 41 is carried to the rotor assembly 42, thereby completing the assembly. The assembly is performed under the guidance of the guide bar 53.

S07: and discharging the finished product. The tool moving mechanism 3 moves the rotor positioning tool 2 out of the assembling station to perform motor blanking.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides an automatic mechanism that attaches together of car driving motor flexibility, its characterized in that, includes stator location frock (1), rotor location frock (2), frock moving mechanism (3) and attaches together motor mechanism, stator location frock (1) is used for placing stator assembly (41) to carry out the circumference location to stator assembly (41) according to the gesture when attaching together, rotor location frock (2) are used for placing rotor assembly (42) to carry out the circumference location to rotor assembly (42) according to the gesture when attaching together, frock moving mechanism (3) are used for with stator location frock (1) with rotor location frock (2) remove respectively to attaching together the station, attach together motor mechanism and include clamp plate (51), stator moving mechanism (52) and guide bar (53), clamp plate (51) set up attach together the top of station, just the plane perpendicular to of clamp plate (51) attaches together motor axial direction and arranges, stator moving mechanism (52) are used for the drive clamp plate (51) are along attaching together motor axial direction reciprocating motion, the bottom surface of clamp plate (51) is provided with stator clamping mechanism (54), stator clamping mechanism (54) are used for pressing from both sides tight fixed stator and close piece (41), guide bar (53) slide and run through clamp plate (51), and can stretch out and draw back the regulation length, guide bar (53) extend after can with the rotor close the coaxial fixed of pivot of piece (42).

2. The flexible automatic assembling mechanism for the automobile driving motor is characterized in that a guide seat (56) is arranged on the bottom surface of the pressure plate (51), and the guide seat (56) can be embedded with a rear end cover rotating chamber of the stator assembly (41).

3. The flexible automatic assembling mechanism for the automobile driving motor is characterized in that the guide seat (56) comprises a cylindrical main body, and the guide rod (53) is coaxially and slidably embedded in a central hole of the guide seat (56).

4. The flexible automatic assembling mechanism for the automobile driving motor is characterized in that the stator moving mechanism (52) comprises a servo electric cylinder mechanism (521) and a first guide rail (522), the first guide rail (522) is arranged on one side of the pressure plate (51) along the axial direction of the assembling motor, and the servo electric cylinder mechanism (521) drives the pressure plate (51) to slide back and forth along the first guide rail (522).

5. The flexible automatic assembling mechanism for the automobile driving motors as claimed in claim 1, wherein a telescopic cylinder (55) is arranged at the top end of the guide rod (53), the telescopic cylinder (55) pushes the guide rod (53) to stretch and retract, a sleeve (531) is arranged at the bottom end of the guide rod (53), and the sleeve (531) can be embedded with the end part of the rotating shaft of the rotor assembly (42).

6. The flexible automatic assembling mechanism for the automobile driving motor according to claim 1, wherein the stator clamping mechanism (54) comprises a radial cylinder group and an axial cylinder group, the radial cylinder group is used for radially clamping the excircle of the stator assembly (41), and the axial cylinder group is used for axially clamping the stator assembly (41) together with the pressure plate (51).

7. The flexible automatic assembling mechanism for the automobile driving motor is characterized in that the radial cylinder group comprises three radial cylinders (541) which are arranged at intervals along the circumferential direction of the stator assembly (41), a connecting rod (542) is arranged between the radial cylinders (541) and the pressure plate (51), the cylinders of the radial cylinders (541) are fixed on the connecting rod (542), and the sliding blocks of the radial cylinders (541) slide along the radial direction of the stator assembly (41).

8. The flexible automatic assembling mechanism of automobile driving motor according to claim 6, wherein the axial cylinder set comprises three rotating cylinders (543) arranged along the circumferential direction of the stator assembly (41) at intervals, the cylinder body of the rotating cylinders (543) is fixedly connected with the pressure plate (51), and after the rotating block of the rotating cylinders (543) rotates, the rotating block slides along the axial direction of the stator assembly (41).

9. The flexible automatic assembling mechanism for the automobile driving motors is characterized in that the tool moving mechanism (3) comprises a driving mechanism (31), a second guide rail (32) and a tray (33), the second guide rail (32) is laid at the bottom of the pressing plate (51), the plane of the second guide rail (32) is parallel to the plane of the pressing plate (51), the driving mechanism (31) drives the tray (33) to move on the second guide rail (32), and the stator positioning tool (1) and the rotor positioning tool (2) are fixed on the tray (33).

10. An automatic flexible assembling method for automobile driving motors based on the assembling mechanism of any one of claims 1 to 9, which is characterized by comprising the following steps:

at a feeding station, respectively placing a stator assembly and a rotor assembly on a stator positioning tool and a rotor positioning tool;

moving a stator positioning tool carrying a stator assembly to an assembling station;

the stator moving mechanism drives the pressing plate to move downwards until the pressing plate carries out center positioning on a rear end cover rotating chamber of the stator assembly through the guide seat, then the stator clamping mechanism clamps the stator assembly on the stator positioning tool, and then the pressing plate is driven to return upwards;

moving a rotor positioning tool carrying a rotor assembly to an assembling station;

the telescopic cylinder drives the guide rod to penetrate through the center hole of the guide seat and extend downwards until the guide rod is in contact embedding with the end part of the rotating shaft of the rotor assembly;

and the stator moving mechanism drives the pressing plate to move downwards along the guide rod to drive the stator assembly to move towards the rotor assembly, so that the assembly is completed.

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