CN115833497A - Motor rotor clamp spring installation device and method - Google Patents

Abstract

The invention discloses a device and a method for installing a clamp spring of a motor rotor. This electric motor rotor jump ring installation device includes: the assembling platform is used for placing the machine shell with the assembled stator; the rod body is arranged along the axis of the stator, and the top end of the rod body extends into the stator through the bearing mounting hole; the lower positioning mechanism is used for driving the positioning rod to move along the axis of the stator; the guide tool is arranged at the top end of the positioning rod in a sliding mode, is provided with a conical outer side surface, is used for expanding the clamp spring to the installation size and is also used for placing the rotor; the feeding mechanism is used for placing the rotor on the positioning part; and the press-fitting mechanism is used for pushing the rotor and guiding the tool to slide along the positioning rod, so that the stator and the rotor are assembled together, and the clamp spring is also embedded into the mounting groove on the bearing. Through in the process action of attaching together of stator and rotor, accomplish the installation of jump ring, realize the integration of process, simplify, reduce the production beat, raise the efficiency.

Description

Motor rotor clamp spring installation device and method

Technical Field

The invention relates to the technical field of automobile motors, in particular to a motor rotor clamp spring mounting device and method.

Background

In motor production, rotor jump ring installation and stator-rotor attach together two processes, separately go on usually independently, adopt the manual work to carry out the jump ring installation moreover comparatively generally, the workman utilizes the hoist to put into the stator with the rotor inside also more common, this kind of mode production processes is many, beat length, cost of labor height, and in attaching together the in-process, because magnetic force effect between stator and the rotor causes the part to collide with the wound easily.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a motor rotor clamp spring installation device and a motor rotor clamp spring installation method, wherein a clamp spring installation procedure and a stator and rotor combining procedure are combined into a whole and are automatically completed mechanically, so that the procedure time is greatly saved, and the efficiency and the product quality are improved.

In order to solve the above technical problem, the present invention provides a motor rotor clamp spring installation apparatus, including: the assembling platform is used for placing a machine shell of the assembled stator, wherein a clamp spring groove for placing a clamp spring is formed in the inner wall of a bearing mounting hole of the machine shell; the rod body is arranged along the axis of the stator, and the top end of the rod body extends into the stator through the bearing mounting hole; the lower positioning mechanism is used for driving the positioning rod to move along the axis of the stator; the guide frock is located in the slip the top of locating lever, including pyramis and location portion, the pyramis has the toper lateral surface, is used for with the jump ring struts to installation size, location portion is used for placing the rotor, and makes and place the back: the outer side surface of a bearing of the rotor is connected with the large end of the conical outer side surface; a feeding mechanism for placing the rotor on the positioning portion; and the press-fitting mechanism is used for pushing the rotor and the guide tool to slide along the positioning rod, so that the stator and the rotor are assembled together, and the clamp spring is embedded into the mounting groove in the bearing.

In above-mentioned motor rotor jump ring installation device, support the guide rotor through the guide frock and remove, finally attach together with the stator, and at the in-process that attaches together, put the jump ring at the jump ring inslot, through the toper lateral surface of guide frock, constantly strut, and slide on the lateral surface of bearing, finally imbed in the mounting groove on the bearing, thereby realize that a process action has both accomplished attaching together of stator and rotor, accomplish the installation of jump ring again, realize the integration of process, simplify, reduce the production beat, raise the efficiency, in addition, main assembly action all has the machine to accomplish, according to the state parameter of machine, like pressure displacement curve of pressure equipment mechanism, can judge the result of attaching together, promote automation and the process quality who attaches together the process.

Further, the guide frock includes coaxial first cylinder and the second cylinder of arranging, and locates cone between first cylinder and the second cylinder, the diameter of first cylinder is greater than the second cylinder, and with the bearing external diameter is the same, the lateral surface both ends of cone are connected respectively first cylinder with the lateral surface of second cylinder, the lateral surface of cone forms the pyramis, guide frock top surface is opened there is the slotted hole, forms location portion.

Preferably, a through stepped hole is formed in the center of the guide tool and comprises a first through hole and a second through hole, the aperture of the first through hole is larger than the diameter of each part of the rotor at the bottom of the bearing, the first through hole is located at one end of the first column body, and the first through hole is used for placing the bottom end of the rotating shaft of the stator so that the bearing is attached to the top surface of the first column body; the second through hole is used for being in sliding connection with the top end of the positioning rod.

Furthermore, the top end of the positioning rod is coaxially provided with an insertion shaft, the diameter of the insertion shaft is smaller than that of the rod body of the positioning rod, so that the top end of the positioning rod is in a stepped shaft shape and used for placing the guide tool.

Preferably, a compression spring is arranged on the outer side of the bottom end of the insertion shaft and used for elastically supporting the guide tool. The compression spring is used for providing elastic buffering, and the direct collision between the guiding device and the bottom surface of the insertion shaft is avoided, so that damage is avoided.

Furthermore, the top end of the insertion shaft is provided with a protrusion, and the protrusion is used for being embedded with a notch at the bottom end of the rotating shaft of the rotor. .

Furthermore, the device also comprises a moving mechanism, wherein the moving mechanism is arranged at the top of the combined platform and used for transferring and carrying the guide tool.

Preferably, press fitting mechanism is including being shaft-like pressure head, the pressure head with the pivot top of rotor aligns, set up a plurality of jack catchs on the week side of pressure head, the jack catch is used for the centre gripping guide frock. The moving mechanism is integrated on the press-mounting mechanism, so that the device is simplified, and the equipment cost is reduced.

In order to solve the technical problem, the invention provides a motor rotor clamp spring installation method based on the motor rotor clamp spring installation device, which comprises the following steps:

the method comprises the following steps: a clamp spring is placed in a clamp spring groove of the shell, and a stator is assembled, placed on the assembling platform and positioned;

step two: a lower positioning mechanism is utilized to drive the positioning rod to extend into the stator;

step three: placing a guide tool at the top end of the positioning rod;

step four: the feeding mechanism acts, and a rotor is placed on the guide tool;

step five: the press-mounting mechanism presses the rotor and the guide tool down, and the lower positioning mechanism drives the positioning rod to move downwards synchronously, so that the bearing is mounted in the bearing mounting hole.

In the installation method, the clamp spring is manually placed in the clamp spring groove, the stator and the rotor are assembled together, the clamp spring is installed and completed in the same process, the process is integrated and simplified, and the efficiency is greatly improved; in addition, the combination result can be judged according to the parameter display of the machine, and the automation and the quality of the combination process are improved.

Further, after the step five, the method further comprises the following steps:

step six: and removing the assembled stator and rotor, and taking the guide tool away from the positioning rod.

In conclusion, by adopting the device and the method for installing the snap spring of the motor rotor, the snap spring is installed in the process of combining the stator and the rotor, so that the integration and simplification of the process are realized, the production takt is reduced, the efficiency is improved, and the automation and the process quality of the combining process can be improved.

Drawings

In the drawings:

fig. 1 is an overall structure diagram of the motor rotor clamp spring mounting device.

Fig. 2 is a structural schematic diagram of the stator and the rotor of the motor rotor clamp spring mounting device when the stator and the rotor are combined.

Fig. 3 is a partial view of fig. 2 taken along the plane of the two stator axes.

Fig. 4 is a cutting structure diagram of a guide tool of the motor rotor clamp spring mounting device.

Fig. 5 is a structure diagram of a positioning rod of the motor rotor clamp spring mounting device.

Fig. 6 is a head structure diagram of the motor rotor clamp spring mounting device.

Fig. 7 is a structural diagram of a press-fitting mechanism of the motor rotor clamp spring mounting device.

Fig. 8 is a structural diagram of a lower positioning mechanism of the motor rotor clamp spring mounting device.

In the figure, 1, the assembly platform; 2. positioning a rod; 21. inserting a shaft; 211. a protrusion; 22. a compression spring; 23. a lower positioning mechanism; 231. a second vertical moving module; 232. a lifting plate; 233. mounting a plate; 3. guiding a tool; 31. a first column; 32. a second cylinder; 33. a cone; 34. a first through hole; 35. a second through hole; 36. a ring groove; 4. a feeding mechanism; 5. a press-fitting mechanism; 51. a pressure head; 52. a jaw; 53. a support; 54. a first vertical moving module; 6. a stator; 7. a rotor; 71. a bearing; 72. mounting grooves; 8. a clamp spring; 9. a housing; 91. a bearing mounting hole; 92. a clamp spring groove.

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.

Example 1

Fig. 1-8 show a motor rotor clamp spring mounting device of the invention. As shown in fig. 1-3, the motor in the figures has two rotors 7 for driving and generating electricity, the two rotors 7 having the same snap spring 8 mounted and integrated with the stator 6. This electric motor rotor jump ring installation device includes: the assembling platform 1 is used for placing the machine shell 9 with the assembled stator 6, wherein a clamp spring groove 92 used for placing the clamp spring 8 is formed in the inner wall of a bearing mounting hole 91 of the machine shell 9; the positioning rod 2 is arranged along the axis of the stator 6, and the top end of the positioning rod extends into the stator 6 through a bearing mounting hole 91; the lower positioning mechanism 23 is used for driving the positioning rod 2 to move along the axis of the stator 6; guide frock 3, the top of locating lever 2 is located in the slip, including pyramis and location portion, the pyramis has the toper lateral surface for prop open jump ring 8 to installation size, location portion is used for placing rotor 7, and makes and place the back: the outer side surface of a bearing 71 of the rotor 7 is connected with the large end of the conical outer side surface; a feeding mechanism 4 for placing the rotor 7 on the positioning portion; and the press-fitting mechanism 5 is used for pushing the rotor 7 and the guide tool 3 to slide along the positioning rod 2, so that the stator 6 and the rotor 7 are assembled together, and the clamp spring 8 is embedded into the mounting groove 72 on the bearing 71.

During the use, attach together platform 1 level setting, feed mechanism 4 locates the one side that attaches together platform 1, and press fitting mechanism 5 locates the top that attaches together platform 1. Firstly, placing the machine shell 9 with the assembled stator 6 on the assembling platform 1 to ensure that the axis of the stator 6 is vertical; then, placing the guiding tool 3 at the top end of the positioning rod 2; placing a rotor 7 on the guide tool 3 by using the feeding mechanism 4; finally, the press-fit mechanism 5 is started, the rotor 7 and the guide tool 3 are pushed downwards, the positioning rod 2 is driven by the lower positioning mechanism 23 to synchronously move downwards, in the moving process, the clamp spring 8 is gradually expanded to the installation size by the conical outer side surface of the conical part, then the clamp spring moves to the surface of the bearing 71 and continues to slide, the clamp spring 8 is finally embedded into the installation groove 72 on the bearing 71 until the bearing 71 is assembled into the bearing installation hole 91, the downward movement is stopped, the stator 6 and the rotor 7 are assembled, meanwhile, the clamp spring 8 is also assembled, the process integration is realized, the efficiency is improved, in addition, according to a pressure displacement curve of the press-fit mechanism 5, the assembling result can be judged, and the automation and the process quality of the assembling process are improved. The feeding mechanism 4 adopts a manipulator.

Because the bearing 71 and the bearing mounting hole 91 of the casing 9 can be in interference fit or in clearance fit, the clearance fit is that the size of the inner hole of the bearing mounting hole 91 is generally larger than the outer diameter of the bearing 71 by about 10um, the interference fit is that the size of the inner hole of the bearing mounting hole 91 is generally smaller than the outer diameter of the bearing by about 3-5um, and the press-fitting force required by the two fits is relatively small, the press-fitting mechanism 5 can meet the press-fitting force requirement by pushing the rotor 7 to press-fit the bearing 71, and can also adopt clearance fit as long as the flat rotation can be ensured, and the press-fitting force is hardly required.

As shown in fig. 4, the guiding tool 3 includes a first cylinder 31 and a second cylinder 32 coaxially arranged, and a cone 33 disposed between the first cylinder 31 and the second cylinder 32, the first cylinder 31 has a diameter larger than that of the second cylinder 32 and has the same outer diameter as that of the bearing 71, two ends of an outer side surface of the cone 33 are respectively connected to outer side surfaces of the first cylinder 31 and the second cylinder 32, the outer side surface of the cone 33 forms a cone, and a top surface of the guiding tool 3 is provided with a groove hole to form a positioning portion.

The guiding tool 3 is vertically arranged, the first cylinder 31 is positioned at the top, and after the rotor 7 is placed, the outer side surface of the first cylinder 31 is connected with the large end of the conical outer side surface and the side surface of the bearing 71, and in the process of downward sliding of the rotor 7, relatively speaking: the circlip 8 is moved along the tapered outer side surface to the large end, expanded to the installation dimension, then slid onto the first cylinder 31, the installation dimension is maintained, and the continued sliding shrinks to be embedded into the circlip groove 92.

Optionally, a through stepped hole is formed in the center of the guide tool 3, and includes a first through hole 34 and a second through hole 35, the aperture of the first through hole 34 is larger than the diameter of each component of the rotor 7 at the bottom of the bearing 71, the first through hole 34 is located at one end of the first column 31, and the first through hole 34 is used for placing the bottom end of the rotating shaft of the stator 6, so that the bearing 71 is attached to the top surface of the first column 31; the second through hole 35 is used for being slidably connected with the top end of the positioning rod 2. Alternatively, the second through hole 35 has a diameter larger than the outer diameter of the rotating lowermost end part of the rotor 7.

At the bottom of the bearing 71 of the rotor 7, there are usually provided a gear fixed on the rotating shaft, etc., which are accommodated by the first through hole 34 and the second through hole 35, and the top surface of the first column 31 supports the bottom end surface of the bearing 71, so that the rotor 7 can be stably placed on the guiding tool 3 and the axis is kept vertical. Note that the inner diameters of the first through hole 34 and the second through hole 35 need to be appropriate, so that the rotor 7 can be easily placed into a component, and can be initially and slightly centered and positioned, thereby facilitating assembly.

Optionally, the device further comprises a moving mechanism, and the moving mechanism is arranged at the top of the combined loading platform 1 and used for transferring the carrying and guiding tool 3. An annular groove 36 is formed in the inner wall of the first through hole 34, and the annular groove 36 is used for clamping and guiding the tool 3 by the moving mechanism.

As shown in fig. 5, an insertion shaft 21 is coaxially provided at the tip end of the positioning rod 2, and the diameter of the insertion shaft 21 is smaller than the shaft diameter of the positioning rod 2, so that the tip end of the positioning rod 2 is stepped shaft-shaped and is used for placing the guide tool 3. The positioning rod 2 is vertically arranged, and the insertion shaft 21 of the top stepped shaft is matched with the second through hole 35 to support the guide tool 3.

Optionally, a compression spring 22 is disposed outside the bottom end of the insertion shaft 21, and the compression spring 22 is used for elastically supporting the guide tool 3. After the guiding tool 3 and the rotor 7 are placed, the compression spring 22 can provide a certain supporting force, and when the press-mounting mechanism 5 is pressed down, a certain buffer can be provided, so that the loss of parts and equipment caused by the fact that the driving speed of the lower positioning mechanism 23 is inconsistent with the pressing speed of the press-mounting mechanism 5 is reduced.

Alternatively, the top end of the insertion shaft 21 is provided with a protrusion 211, and the protrusion 211 is used for being embedded with a notch at the bottom end of the rotating shaft of the rotor 7. When placing guiding device, protruding 211 embedding pivot bottom is fixed a position rotor 7, keeps rotor 7 axis vertical, reduces the influence of magnetic force, guarantees that the assembly is accurate, high-efficient.

In order to simplify the mechanism, the moving mechanism is integrated on the press-fitting mechanism, the press-fitting mechanism 5 includes a press head 51 in a rod shape, the press head 51 is aligned with the top end of the rotating shaft of the rotor 7, a plurality of claws 52 are provided on one circumferential side surface of the press head 51, and the claws 52 are used for clamping and guiding the tool 3. When the pressure head 51 is pressed, the pressure head contacts with the top end of the rotating shaft of the rotor 7 to apply force, and a protruding structure can be arranged on the end face of the pressure head 51 and embedded into an oil passage hole of the rotating shaft to perform centering positioning. As shown in fig. 6, the jaws 52 can radially extend and retract along the pressing head 51, and when the fixture 3 is clamped and guided, the pressing head 51 extends into the first through hole 34, the jaws 52 are opened towards the periphery and clamped in the ring grooves 36, so that stable transportation is realized. The ram 51 may be pushed by an air cylinder.

Optionally, as shown in fig. 7, the press-fitting mechanism 5 further includes a bracket 53 and a first vertical moving module 54, the bracket 53 is of a frame structure, and supports the press head 51 above the axis of the stator 6 in a vertically centered manner, and the first vertical moving module 54 may adopt a motor screw rod structure, an air cylinder push rod or a hydraulic cylinder push rod structure, and vertically moves the press head 51 to realize press-fitting.

Optionally, as shown in fig. 8, the lower positioning mechanism 23 includes two second vertical moving modules 231 that are just opposite to each other, the output ends of the second vertical moving modules 231 are respectively provided with a lifting plate 232, the bottom end of the positioning rod 2 is fixed on the lifting plate 232, the second vertical moving modules 231 are driven to move up and down, the bottom of the lifting plate 232 is further provided with a mounting plate 233, the mounting plate 233 and the combining platform 1 are provided with guide posts, and two ends of the mounting plate 233 are fixedly connected with the support frame of the device.

The invention discloses a method for installing a motor rotor clamp spring based on the motor rotor clamp spring installing device, which comprises the following steps of:

step S10: the snap spring 8 is placed in the snap spring groove 92 of the housing 9 and the assembled stator 6 is placed on the assembly platform 1 and positioned. The combining platform 1 is generally horizontally placed, so that the axis of the stator 6 is vertical, and the combining is convenient.

Step S20: the positioning rod 2 is driven by the lower positioning mechanism 23 to extend into the stator 6. Can adopt the artifical mode of placing jump ring 8, the jump ring 8 size is less under the natural state, puts into easily. The positioning rod 2 is then inserted into the stator 6 that has just been placed by the lower positioning mechanism 23.

Step S30: the guide tool 3 is placed on the top end of the positioning rod 2. The insertion shaft 21 is inserted into the second through hole 35, and the placement is completed. Through the design of 2 top height of locating lever, can make guide frock 3 be in suitable height, for example make 3 toper lateral surfaces of guide frock part pass 8 holes of jump ring, the follow-up pressure equipment of being convenient for.

Step S40: on the guiding tool 3 a rotor 7 is placed. And starting the feeding mechanism 4, placing the bottom end of the rotating shaft of the rotor 7 into the first through hole 34, namely the second through hole 35, and attaching and aligning the bottom surface of the bearing 71 of the rotor 7 with the top surface of the first column 31.

Step S50: the rotor 7 and the guide tool 3 are pressed down, and the lower positioning mechanism 23 drives the positioning rod 2 to synchronously move downwards, so that the bearing 71 is installed in the bearing installation hole 91. The press-fitting mechanism 5 operates to push the rotor 7 to move downward, the clamp spring 8 is gradually expanded to the installation dimension by the tapered outer side surface of the tapered portion, and is inserted into the installation groove 72 on the bearing 71, and finally the bearing 71 is installed into the bearing installation hole 91, so that the stator 6 and the rotor 7 are also assembled.

Step S60: the stator 6 and the rotor 7 which are assembled together are removed, and the next process can be carried out; and the guiding tool 3 is taken away from the positioning rod 2 for the next assembling.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the scope of protection thereof, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: various alterations, modifications and equivalents may be introduced into the embodiments of the invention by those skilled in the art after reading this disclosure, and such alterations, modifications and equivalents are intended to be within the scope of the invention as defined in the appended claims.

Claims (10)

1. The utility model provides a motor rotor jump ring installation device which characterized in that includes:

the assembling platform (1) is used for placing a machine shell (9) assembled with a stator (6), wherein a clamp spring groove (92) used for placing a clamp spring (8) is formed in the inner wall of a bearing mounting hole (91) of the machine shell (9);

the rod body of the positioning rod (2) is arranged along the axis of the stator (6), and the top end of the rod body extends into the stator (6) through the bearing mounting hole (91);

the lower positioning mechanism (23) is used for driving the positioning rod (2) to move along the axis of the stator (6);

guide frock (3), locate the top of locating lever (2), including pyramis and location portion, the pyramis has the toper lateral surface, is used for with jump ring (8) struts to installation size, location portion is used for placing rotor (7), and makes and place the back: the outer side surface of a bearing (71) of the rotor (7) is connected with the large end of the conical outer side surface;

a feeding mechanism (4) for placing the rotor (7) on the positioning portion;

and the press-fitting mechanism (5) is used for pushing the rotor (7) and the guide tool (3) to slide along the positioning rod (2) to realize that the stator (6) and the rotor (7) are combined together, and the clamp spring (8) is embedded into the mounting groove (72) on the bearing (71).

2. The mounting device for the clamp spring of the motor rotor as claimed in claim 1, wherein an insertion shaft (21) is coaxially arranged at the top end of the positioning rod (2), and the diameter of the insertion shaft (21) is smaller than that of the rod body of the positioning rod (2), so that the top end of the positioning rod (2) is in a stepped shaft shape and used for placing the guide tool (3).

3. The motor rotor clamp spring mounting device according to claim 2, wherein a compression spring (22) is arranged on the outer side of the bottom end of the insertion shaft (21), and the compression spring (22) is used for elastically supporting the guide tool (3).

4. The motor rotor circlip mounting device according to claim 2, characterized in that the top end of the insertion shaft (21) is provided with a protrusion (211), and the protrusion (211) is used for being embedded with the bottom end notch of the rotating shaft of the rotor (7).

5. The motor rotor clamp spring mounting device according to claim 1, wherein the guiding tool (3) comprises a first cylinder (31) and a second cylinder (32) which are coaxially arranged, and a cone (33) which is arranged between the first cylinder (31) and the second cylinder (32), the diameter of the first cylinder (31) is larger than that of the second cylinder (32) and is the same as the outer diameter of the bearing (71), and two ends of the outer side surface of the cone (33) are respectively connected with the outer side surfaces of the first cylinder (31) and the second cylinder (32).

6. The motor rotor clamp spring mounting device according to claim 5, wherein a through stepped hole is formed in the center of the guide tool (3), and comprises a first through hole (34) and a second through hole (35), the diameter of the first through hole (34) is larger than the diameter of each component of the rotor (7) at the bottom of the bearing (71), the first through hole (34) is located at one end of the first cylinder (31), and the first through hole (34) is used for placing the bottom end of the rotating shaft of the stator (6) so that the bearing (71) is attached to the top surface of the first cylinder (31); the second through hole (35) is used for being connected with the top end of the positioning rod (2) in a sliding mode.

7. The device for mounting the circlip of the motor rotor as claimed in claim 1, further comprising a moving mechanism, wherein the moving mechanism is arranged at the top of the combined platform (1) and used for transferring and carrying the guide tool (3).

8. The motor rotor clamp spring mounting device according to claim 7, wherein the press-fitting mechanism (5) comprises a press head (51) in a rod shape, the press head (51) is aligned with the top end of the rotating shaft of the rotor (7), a plurality of clamping claws (52) are arranged on one circumferential side surface of the press head (51), and the clamping claws (52) are used for clamping the guide tool (3).

9. A motor rotor clamp spring mounting method based on the motor rotor clamp spring mounting device of any one of claims 1 to 8, characterized by comprising the following steps:

the method comprises the following steps: a clamp spring (8) is placed in a clamp spring groove (92) of the shell (9), a stator (6) is assembled, and the assembled stator is placed on the assembling platform (1);

step two: a lower positioning mechanism (23) is utilized to drive the positioning rod (2) to extend into the stator (6);

step three: placing a guide tool (3) at the top end of the positioning rod (2);

step four: placing a rotor (7) on the guide tool 3;

step five: the rotor (7) and the guide tool (3) are pressed downwards, and the lower positioning mechanism (23) drives the positioning rod (2) to synchronously move downwards so that the bearing (71) is installed in the bearing installation hole (91).

10. The device for installing the clamp spring of the motor rotor as claimed in claim 9, further comprising, after the step five:

step six: and removing the assembled stator (6) and rotor (7) and taking the guide tool (3) away from the positioning rod (2).

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