Motor rotor assembly in-box auxiliary assembly device and assembly method

Abstract

The application relates to an auxiliary assembling device and method for a motor rotor assembly into a gearbox, which is used for assembling a rotor assembly of a motor, the motor and a gearbox are integrally arranged, the gearbox comprises a high-speed shaft, and the auxiliary assembling device comprises a rack, an upper pressing device comprising an upper pressing head, a clamping device comprising a guide clamping claw, the guide clamping claw and the upper pressing head synchronously move to assemble a bottom end and a middle part of the rotor assembly, a lower supporting and jacking device comprising a lower supporting and jacking rod, the lower supporting and jacking rod and the upper pressing head synchronously move to assemble a top end of the rotor assembly and engage the rotor assembly with the high-speed shaft. The lower supporting and jacking rod of the application does not need to be arranged to be long, the phenomenon of deviation and fracture of the lower supporting and jacking rod when the lower supporting and jacking rod is too long can be avoided, the rotor assembly can be prevented from scratching a stator assembly in the whole assembling process of the rotor assembly, and the phenomenon of damaged spline for engagement due to inconvenient engagement of the rotor assembly and the high-speed shaft can be avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of motor assembly, in particular to a motor rotor assembly box-entering auxiliary assembly equipment and an assembly method. BACKGROUND

[0002] The existing motor assembly process is generally as follows: first, the stator assembly and the rotor assembly of the motor are assembled, then the stator assembly is assembled into the motor shell, and then the rotor assembly is assembled into the stator assembly; wherein, the rotor assembly can further include a motor end cover in addition to the rotor, and the motor end cover is covered on the motor shell. In the process of inserting the rotor assembly into the stator assembly, in order to avoid the rotor assembly from scratching the stator assembly due to magnetic force, the box-entering process of the rotor assembly can be completed with the help of auxiliary assembly equipment. The auxiliary assembly equipment can guide the rotor assembly by means of "pressing from above and pushing from below", so as to avoid the rotor assembly from deviating due to magnetic force.

[0003] However, there is also a motor integrated with a gearbox in the prior art, the motor shell of the motor is integrally formed with the upper shell of the gearbox, and constitutes a power assembly shell. Before assembling the rotor assembly of the motor, the shaft system of the gearbox is assembled into the lower shell of the gearbox; wherein, the shaft system of the gearbox can include a high-speed shaft, a differential, etc. The lower shell of the gearbox is arranged at one end of the bottom of the power assembly shell to constitute a motor semi-finished product to be assembled with the rotor assembly. When the rotor assembly is assembled into the stator assembly, the bottom end of the rotor assembly can also be inserted into the high-speed shaft to engage with the high-speed shaft, so as to realize the transmission between the rotor assembly and the high-speed shaft. This means that when the auxiliary assembly equipment assembles the rotor assembly, it not only needs to insert the rotor assembly into the stator assembly, but also needs to insert the bottom end of the rotor assembly into the high-speed shaft to engage with the high-speed shaft. At this time, the lower supporting top rod used for "pushing from below" needs to pass through the lower shell of the gearbox and the high-speed shaft in sequence, so as to "push from below" the rotor assembly, which inevitably leads to the increase of the length of the lower supporting top rod. After the length of the lower supporting top rod is increased, the phenomenon of deviation or even fracture of the lower supporting top rod occurs in the process of guiding the movement of the rotor assembly, which in turn easily causes the rotor assembly to scratch the stator assembly, or the spline used for engagement to be damaged when engaging with the high-speed shaft. SUMMARY

[0004] Therefore, the present application provides a motor rotor assembly box-entering auxiliary assembly equipment and an assembly method to solve the problems that the rotor assembly is easily scratched with the stator assembly when assembled into the power assembly shell, or the spline used for engagement is easily damaged when engaging with the high-speed shaft in the prior art.

[0005] In a first aspect, the application provides an auxiliary assembly device for assembling a rotor assembly of an electric machine into a stator assembly of the electric machine, the electric machine being integrated with a gearbox, the gearbox comprising a high-speed shaft, a bottom end of the rotor assembly being inserted into the high-speed shaft and engaged with the high-speed shaft, the auxiliary assembly device comprising:

[0006] a frame;

[0007] an upper pressing device comprising an upper pressing head, the upper pressing head being slidably arranged on the frame in a vertical direction and being configured to abut against a top end of the rotor assembly;

[0008] a clamping device comprising a guide clamping jaw, the guide clamping jaw being slidably arranged below the upper pressing device in the vertical direction and being configured to clamp the top end of the rotor assembly, the guide clamping jaw and the upper pressing head being synchronously moved downward in the vertical direction when the upper pressing head abuts against the top end of the rotor assembly and the guide clamping jaw clamps the rotor assembly, so as to assemble a middle portion and the bottom end of the rotor assembly into the stator assembly; and

[0009] a lower lifting device comprising a lower lifting rod, the lower lifting rod being slidably arranged directly below the upper pressing head in the vertical direction and being configured to pass through the high-speed shaft and abut against the bottom end of the rotor assembly inside the stator assembly, the lower lifting rod and the upper pressing head being synchronously moved downward in the vertical direction when the lower lifting rod and the upper pressing head abut against the rotor assembly, so as to assemble the top end of the rotor assembly into the stator assembly and insert the bottom end of the rotor assembly into the high-speed shaft and engage with the high-speed shaft.

[0010] In one embodiment, the upper pressing device further comprises an upper pressing servo cylinder and an upper pressing fixed disc, the upper pressing servo cylinder being arranged on the frame, the upper pressing fixed disc being connected with the upper pressing servo cylinder, the upper pressing servo cylinder driving the upper pressing fixed disc to move in the vertical direction, the upper pressing head and the clamping device being arranged on the upper pressing fixed disc.

[0011] In one of the embodiments, the clamping device further comprises a clamping driving cylinder and a clamping displacement mechanism, the clamping displacement mechanism is arranged on the upper pressing fixed disc, the clamping driving cylinder is connected with the clamping displacement mechanism, the clamping displacement mechanism drives the clamping driving cylinder to move along a first direction to approach or move away from the axis of the upper pressing head and the lower supporting top rod, the pair of guide clamping claws are arranged oppositely and connected with the clamping driving cylinder, the clamping driving cylinder drives the two guide clamping claws to approach or move away from each other along a second direction, the second direction intersects with the first direction.

[0012] In one of the embodiments, the rotor assembly comprises a rotating shaft and a rotor core, the rotor core is sleeved on the middle part of the rotating shaft, the pair of guide clamping claws clamps the top end of the rotor core, the height of the guide clamping claw is one third to two fifths of the axial length of the rotor core.

[0013] In one of the embodiments, the lower supporting device further comprises a lower supporting servo motor, a lower supporting screw assembly and a lower supporting fixed disc, the lower supporting servo motor is arranged on the frame, the lower supporting screw assembly is driven by the lower supporting servo motor, the lower supporting fixed disc is connected with the lower supporting screw assembly, the lower supporting screw assembly drives the lower supporting fixed disc to move along a vertical direction, and the lower supporting top rod is fixed on the lower supporting fixed disc.

[0014] In one of the embodiments, the lower supporting top rod is elastically arranged and comprises a first rod body and a second rod body, the first rod body is slidably arranged in the second rod body along a vertical direction, and an elastic member is arranged between the first rod body and the second rod body.

[0015] In one of the embodiments, the motor rotor assembly into the box auxiliary assembly device further comprises a pressure detection device, a controller and an alarm device, the pressure detection device is arranged on the upper pressing device and used to detect the downward pressure of the upper pressing head on the rotor assembly, the controller is electrically connected with the pressure detection device and the alarm device, the controller is configured to receive the downward pressure sent by the pressure detection device, and when the downward pressure does not decrease to a specified value after instantaneously increasing, the controller controls the alarm device to alarm that the rotor assembly and the high-speed shaft are not engaged in place.

[0016] In one of the embodiments, the motor rotor assembly boxing auxiliary assembly device further comprises a distance measuring detection device arranged on the frame and configured to detect the distance between the distance measuring detection device and a specified part of the rotor assembly, the distance measuring detection device is electrically connected with the controller, and the controller is further configured to receive the distance sent by the distance measuring detection device and control the alarm device to alarm when the distance does not increase to a specified value.

[0017] In a second aspect, the application provides a motor rotor assembly boxing auxiliary assembly method, which is realized by any one of the motor rotor assembly boxing auxiliary assembly devices provided by the application. The motor rotor assembly boxing auxiliary assembly method comprises the following steps:

[0018] When the rotor assembly moves between the upper pressing head and the lower supporting ejector rod, the upper pressing head moves downward along the vertical direction and abuts against the top end of the rotor assembly, and the guide clamping claw clamps the top end of the rotor assembly;

[0019] The upper pressing head and the guide clamping claw move downward along the vertical direction synchronously to assemble the bottom end and the middle part of the rotor assembly into the stator assembly;

[0020] When the bottom end and the middle part of the rotor assembly enter the stator assembly, the lower supporting ejector rod passes through the high-speed shaft along the vertical direction and abuts against the bottom end of the rotor assembly;

[0021] When the lower supporting ejector rod and the upper pressing head abut against the two ends of the rotor assembly respectively, the guide clamping claw releases the clamping of the rotor assembly;

[0022] The upper pressing head and the lower supporting ejector rod move downward along the vertical direction synchronously to assemble the top end of the rotor assembly into the stator assembly and extend the bottom end of the rotor assembly into the high-speed shaft to engage with the high-speed shaft.

[0023] In one of the embodiments, the upper pressing head and the lower supporting ejector rod move downward along the vertical direction synchronously to assemble the top end of the rotor assembly into the stator assembly and extend the bottom end of the rotor assembly into the high-speed shaft to engage with the high-speed shaft, which comprises the following steps:

[0024] The upper pressing head and the lower supporting ejector rod move downward along the vertical direction synchronously to guide the movement of the rotor assembly to a position where the bottom end of the rotor assembly abuts against the high-speed shaft;

[0025] The upper press head stops moving downward in the vertical direction, and the lower supporting top rod continues to move downward in the vertical direction by a specified distance, which is less than or equal to the meshing length when the rotor assembly is meshed with the high-speed shaft;

[0026] The high-speed shaft is rotated to mesh the rotor assembly with the high-speed shaft, the rotor assembly continues to move downward in the vertical direction, and further enters the high-speed shaft.

[0027] The present application guides the rotor assembly through the upper press head and the guide clamping claw, and sends the bottom end and the middle part of the rotor assembly into the stator assembly, and avoids the bottom end and the middle part of the rotor assembly from scratching the stator assembly. Then the present application guides the rotor assembly through the upper press head and the lower supporting top rod, and sends the top end of the rotor assembly into the stator assembly, and avoids the top end of the rotor assembly from scratching the stator assembly. At the same time, the present application meshes and drives the rotor assembly with the high-speed shaft by passing the lower supporting top rod through the high-speed shaft. The lower supporting top rod of the present application does not need to be set too long, which can avoid the phenomenon of deviation and fracture of the lower supporting top rod when it is too long, and further avoid the rotor assembly from scratching the stator assembly and the phenomenon of damage to the spline used for meshing due to inconvenience in meshing. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The structure schematic diagram of the motor rotor assembly into the box auxiliary assembly equipment provided by the embodiment one of the present application;

[0029] Figure 2 The schematic diagram of the motor rotor assembly into the box auxiliary assembly equipment provided by the embodiment one of the present application when assembling the rotor assembly;

[0030] Figure 3 The schematic diagram of the upper press head and the guide clamping claw of the motor rotor assembly into the box auxiliary assembly equipment provided by the embodiment one of the present application when guiding the rotor assembly;

[0031] Figure 4 The longitudinal sectional view of the upper press head and the guide clamping claw of the motor rotor assembly into the box auxiliary assembly equipment provided by the embodiment one of the present application when guiding the rotor assembly;

[0032] Figure 5 The schematic diagram of the upper press head and the lower supporting top rod of the motor rotor assembly into the box auxiliary assembly equipment provided by the embodiment one of the present application when guiding the rotor assembly;

[0033] Figure 6 The longitudinal sectional view of the upper pressing machine head and the lower supporting rod of the motor rotor assembly into the box auxiliary assembly equipment provided by the embodiment one of the application guides the rotor assembly;

[0034] Figure 7 The structural schematic diagram of the lower top device and the fork device of the motor rotor assembly into the box auxiliary assembly equipment provided by the embodiment one of the application;

[0035] Figure 8 The longitudinal sectional view of the rotor assembly and the high-speed shaft of the application;

[0036] Figure 9 The longitudinal sectional view of the rotor assembly and the high-speed shaft of the application;

[0037] Figure 10 The Figure 8 The enlarged view of the middle A part;

[0038] Figure 11 The circuit connection schematic diagram of the motor rotor assembly into the box auxiliary assembly equipment provided by the embodiment one of the application;

[0039] Figure 12 The flow chart of the motor rotor assembly into the box auxiliary assembly method provided by the embodiment two of the application;

[0040] Figure 13 The flow chart of the step S500 in the motor rotor assembly into the box auxiliary assembly method provided by the embodiment two of the application.

[0041] Reference signs: 100, rack; 110, guiding and guiding assembly; 111, guiding and guiding slide rail; 112, guiding and guiding slider; 120, yoke device; 121, yoke; 122, yoke servo cylinder; 123, yoke servo motor; 200, upper pressing device; 210, upper pressing head; 220, upper pressing servo cylinder; 230, upper pressing fixed disc; 300, lower lifting device; 310, lower supporting lifting rod; 311, first rod body; 312, second rod body; 313, elastic member; 314, connecting bolt; 320, lower lifting servo motor; 330, lower lifting screw assembly; 331, lower lifting sliding nut; 332, lower lifting rotating screw; 340, lower lifting fixed disc; 350, pulley assembly; 351, driving pulley; 352, driven pulley; 353, transmission belt; 360, lower lifting guiding mechanism; 361, guiding sliding sleeve; 362, guiding rod; 400, clamping device; 410, guiding clamping claw; 420, clamping driving cylinder; 430, clamping misalignment mechanism; 431, misalignment driving member; 432, support frame; 440, misalignment guiding assembly; 441, misalignment guiding slide rail; 442, misalignment guiding slider; 500, pressure detection device; 600, controller; 700, alarm device; 800, distance measuring detection device; 910, rotor assembly; 911, rotating shaft; 912, rotor core; 913, end cover; 920, stator assembly; 930, power assembly housing; 940, lower housing; 950, high-speed shaft; 960, differential. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and not to limit the present application.

[0043] It should be noted that the diagrams provided in the embodiments only schematically illustrate the basic concept of the present application.

[0044] The structures, proportions, sizes, etc. shown in the drawings of the present specification are only used to cooperate with the content disclosed in the present specification, so that those skilled in the art can understand and read, and are not used to limit the defined conditions under which the present application can be implemented. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects that can be produced by the present application and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the present application.

[0045] The orientations or positional relationships indicated by terms such as "upper," "lower," "left," "right," "middle," "longitudinal," "lateral," "horizontal," "inner," "outer," "radial," and "circumferential" used in this specification are based on the orientations or positional relationships shown in the accompanying drawings and are only for the purpose of simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] Example 1

[0047] Embodiment 1 of this application provides an auxiliary assembly device for motor rotor assembly into the housing, such as... Figures 1 to 11 As shown, the motor rotor assembly assembly auxiliary assembly equipment is used to assemble the motor rotor assembly 910 into the motor stator assembly 920. The motor and gearbox are integrated, and the gearbox includes a high-speed shaft 950. One bottom end of the rotor assembly 910 extends into and meshes with the high-speed shaft 950. The motor rotor assembly assembly auxiliary assembly equipment includes:

[0048] 100 racks;

[0049] The pressing device 200 includes a pressing head 210, which is slidably mounted on the frame 100 in a vertical direction and is used to abut against one of the top ends of the rotor assembly 910.

[0050] The clamping device 400 includes a guide clamping claw 410, which is slidably disposed vertically below the pressing device 200 and is used to clamp one top end of the rotor assembly 910. When the pressing head 210 abuts against the top end of the rotor assembly 910 and the guide clamping claw 410 clamps the rotor assembly 910, the guide clamping claw 410 and the pressing head 210 move synchronously downwards vertically to assemble one bottom end and one middle portion of the rotor assembly 910 into the stator assembly 920; and

[0051] The lower support device 300 includes a lower support rod 310, which is slidably disposed directly below the upper press head 210 in the vertical direction. It is used to pass through the high-speed shaft 950 and enter the stator assembly 920 to abut against the bottom end of the rotor assembly 910. When the lower support rod 310 and the upper press head 210 abut against the rotor assembly 910, the lower support rod 310 and the upper press head 210 move synchronously downward in the vertical direction to assemble the top end of the rotor assembly 910 into the stator assembly 920 and extend the bottom end of the rotor assembly 910 into the high-speed shaft 950 to engage with the high-speed shaft 950.

[0052] like Figure 1As shown, in the present embodiment, the rack 100 can be assembled by beams and plates, which are used for the arrangement and installation of various devices. The rack 100 can be fixed on the ground, and one end of the bottom can be provided with leveling feet, which are used for leveling to keep stable. In the present embodiment, the length direction of the rack 100 can be set as the X-axis direction, the width direction can be set as the Y-axis direction, and the height direction (i.e. the vertical direction) can be set as the Z-axis direction.

[0053] As shown in Figure 1 and Figure 2 The upper pressing device 200 can be arranged on the top of the rack 100, and the upper pressing head 210 can be arranged slidably in the vertical direction to facilitate the "upper pressing" of the rotor assembly 910. The lower supporting device 300 can be arranged on the bottom of the rack 100, and the lower supporting rod 310 can also be arranged slidably in the vertical direction to facilitate the "lower supporting" of the rotor assembly 910. The upper pressing head 210 and the lower supporting rod 310 can be coaxially arranged to abut the two ends of the rotor assembly 910, respectively. The clamping device 400 can be arranged between the upper pressing device 200 and the lower supporting device 300, and the guide clamping claw 410 is used to clamp the top end of the rotor assembly 910.

[0054] In the present embodiment, when the motor and the gearbox are integrated, the motor housing and the upper housing of the gearbox are integrally formed, and form the power assembly housing 930. In the assembly type, the stator assembly 920 and the rotor assembly 910 can be first assembled, then the stator assembly 920 is assembled in the power assembly housing 930 of the motor, and the shafting of the gearbox is assembled into the lower housing 940 of the gearbox, and the shafting of the gearbox can include the high-speed shaft 950; then the power assembly housing 930 and the lower housing 940 are combined to form a semi-finished product of the motor and the gearbox to be assembled with the rotor assembly 910. The semi-finished product of the rotor assembly 910 to be assembled can be fixed on the tool tray, and the tool tray can be arranged on the linear tool, which passes through the middle of the rack 100 along the X-axis direction and is used to transport the tool tray and the semi-finished product between the upper pressing device 200 and the lower supporting device 300; when the tool tray is moved to the position, it is fixed to keep the position to facilitate the assembly of the rotor assembly 910. After the rotor assembly 910 is assembled, it can be first clamped by the mechanical hand, and then transported to the feeding device of the rotor assembly, which can include the feeding clamping claw, which can clamp the middle or the bottom end of the rotor assembly 910 and transport it directly below the upper pressing device 200.

[0055] As shown in Figure 3 and Figure 4As shown, after the rotor assembly 910 is delivered directly below the pressing device 200, it can be assembled into the aforementioned semi-finished product using the motor rotor assembly insertion auxiliary assembly equipment. First, the pressing head 210 moves vertically downwards and abuts against the top end of the rotor assembly 910. Then, the guide clamp 410 clamps the top end of the rotor assembly 910 to cooperate with the pressing head 210 in fixing the rotor assembly 910; the feeding clamp releases from the rotor assembly 910 and resets, ready for the next feeding. Subsequently, the pressing head 210 and the guide clamp 410 move synchronously downwards vertically, while the lowering device 300 remains stationary. Guided by the pressing head 210 and the guide clamp 410, the rotor assembly 910 approaches the semi-finished product to be assembled and enters the motor stator assembly 920. Due to the clamping force of the guide gripper 410 and the pressure of the upper press head 210, the bottom end and middle of the rotor assembly 910 are unlikely to be deflected by magnetic force, thus avoiding scratches on the stator assembly 920.

[0056] like Figure 5 and Figure 6 As shown, after the bottom and middle parts of the rotor assembly 910 have entered the stator assembly 920, the top end of the rotor assembly 910 is held by the guide clamp 410. If the rotor assembly 910 continues to move, the guide clamp 410 will interfere with the power assembly housing 930 of the motor. At this time, the upper press head 210 and the guide clamp 410 cannot continue to guide the rotor assembly 910. Therefore, the lower support rod 310 is needed. The lower support rod 310 moves vertically upward at this time, and in the process of moving, it passes through the lower housing 940 of the gearbox and the high-speed shaft 950 in sequence, and then extends into the stator assembly 920 to abut against the bottom end of the rotor assembly 910. When the lower support rod 310 abuts against the bottom end of the rotor assembly 910, the guide clamp 410 releases its grip on the rotor assembly 910 and stops guiding the rotor assembly 910.

[0057] Subsequently, the upper pressing head 210 and the lower supporting jacking rod 310 are synchronously moved downward along the vertical direction to guide the rotor assembly 910 to continue to move downward along the vertical direction, so as to make the top end of the rotor assembly 910 also enter the stator assembly 920. Since the guide clamping claw 410 releases the rotor assembly 910, the rotor assembly 910 can be dislocated from the power assembly shell 930 in the subsequent movement process, so as to ensure that the top end of the rotor assembly 910 smoothly enters the stator assembly 920. When the rotor assembly 910 is moved to the position in the stator assembly 920, the bottom end of the rotor assembly 910 extends into the high-speed shaft 950 and is engaged and driven with the high-speed shaft 950. In the embodiment, the bottom end of the rotor assembly 910 can be provided with external splines, and the top end of the high-speed shaft 950 can be provided with internal splines, and the internal splines are engaged with the external splines to drive the rotor assembly 910 with the high-speed shaft 950.

[0058] It can be understood that, by pressing the rotor assembly 910 through the upper pressing head 210 and clamping the top end of the rotor assembly 910 through the guide clamping claw 410, the rotor assembly 910 can be guided through the upper pressing head 210 and the guide clamping claw 410 to send the bottom end and the middle part of the rotor assembly 910 into the stator assembly 920 and avoid scratching the stator assembly 920 by the bottom end and the middle part of the rotor assembly 910. Subsequently, by pressing the rotor assembly 910 through the upper pressing head 210 and jacking the rotor assembly 910 through the lower supporting jacking rod 310, the rotor assembly 910 can be guided through the upper pressing head 210 and the lower supporting jacking rod 310 to send the top end of the rotor assembly 910 into the stator assembly 920 and avoid scratching the stator assembly 920 by the top end of the rotor assembly 910; at the same time, the rotor assembly 910 can be engaged and driven with the high-speed shaft 950 by passing the lower supporting jacking rod 310 through the high-speed shaft 950 after being moved to the position.

[0059] As the lower supporting jacking rod 310 of the present application does not need to pass through the entire stator assembly 920 along the vertical direction, but only needs to move upward along the vertical direction after the top end and the middle part of the rotor assembly 910 enter the stator assembly 920 to pass through the high-speed shaft 950 and extend into the stator assembly 920 to abut against the bottom end of the rotor assembly 910, the lower supporting jacking rod 310 of the present application does not need to be set too long, which can avoid the phenomenon of deviation and fracture of the lower supporting jacking rod 310 when the lower supporting jacking rod 310 is too long, so as to avoid scratching the stator assembly 920 by the rotor assembly 910 during the entire assembly process of the rotor assembly 910, and also avoid the phenomenon of damage to the splines used for engagement due to the difficulty in engaging the rotor assembly 910 with the high-speed shaft 950.

[0060] Specifically, the upper pressing device 200 further comprises an upper pressing servo cylinder 220 and an upper pressing fixed disc 230, the upper pressing servo cylinder 220 is arranged on the rack 100, the upper pressing fixed disc 230 is connected with the upper pressing servo cylinder 220, the upper pressing servo cylinder 220 drives the upper pressing fixed disc 230 to move in the vertical direction, and the upper pressing head 210 and the clamping device 400 are both arranged on the upper pressing fixed disc 230.

[0061] As shown in Figure 2 and Figure 3 In this embodiment, the upper pressing servo cylinder 220 is fixed at one end of the top of the rack 100, and the piston end thereof can move up and down in the vertical direction. The upper pressing fixed disc 230 can be arranged as a rectangular fixed disc, and one side of the top thereof can be connected with the piston end of the upper pressing servo cylinder 220. When the piston end of the upper pressing servo cylinder 220 moves, it drives the upper pressing fixed disc 230 to move synchronously. The upper pressing head 210 and the clamping device 400 can both be arranged on one side of the bottom of the upper pressing fixed disc 230, wherein the upper pressing head 210 can be coaxially arranged with the piston end of the upper pressing servo cylinder 220, so as to abut against one side of the top of the rotor assembly 910; and the clamping device 400 can be arranged side by side with the upper pressing head 210 in the Y-axis direction, so as to guide the clamping jaw 410 to clamp one end of the top of the rotor assembly 910.

[0062] It can be understood that, by driving the upper pressing fixed disc 230 through the upper pressing servo cylinder 220 and arranging the upper pressing head 210 and the clamping device 400 on the upper pressing fixed disc 230, it is easy to control the upper pressing head 210 and the guiding clamping jaw 410 to move synchronously when the upper pressing head 210 presses the rotor assembly 910 and the guiding clamping jaw 410 clamps the rotor assembly 910, so that the upper pressing head 210 and the guiding clamping jaw 410 can guide the rotor assembly 910 synchronously when one end of the bottom of the rotor assembly 910 and the middle part enter the stator assembly 920, that is, it is easy to keep the pressure and the clamping force applied by the upper pressing head 210 and the guiding clamping jaw 410 to the rotor assembly 910 respectively, so as to achieve the purpose of preventing the rotor assembly 910 from being eccentric and scratching the stator assembly 920.

[0063] As shown in Figure 2 and Figure 3 Specifically, in order to improve the stability of the movement of the upper pressing fixed disc 230, the rack 100 can further be provided with a guiding and guiding assembly 110 for guiding the movement of the upper pressing fixed disc 230. The guiding and guiding assembly 110 can be arranged in two groups along the X-axis direction, and can comprise guiding and guiding rails 111 and guiding and guiding blocks 112. The guiding and guiding rails 111 can be arranged in the vertical direction, the guiding and guiding blocks 112 can be slidably arranged on the guiding and guiding rails 111, and connected with the upper pressing fixed disc 230.

[0064] It can be understood that, in the embodiment, when the upper pressing servo cylinder 220 drives the upper pressing fixed disc 230 to move in the vertical direction, the upper pressing fixed disc 230 can drive the two guide guide sliding blocks 112 to move on the two guide guide sliding rails 111 respectively, and the guide guide sliding blocks 112 and the guide guide sliding rails 111 can guide the movement of the upper pressing fixed disc 230, so that the rotor assembly 910 moves more stably when the upper pressing head 210 and the guide clamping jaw 410 guide the rotor assembly 910.

[0065] More specifically, the clamping device 400 further comprises a clamping drive cylinder 420 and a clamping misalignment mechanism 430, the clamping misalignment mechanism 430 is arranged on the upper pressing fixed disc 230, the clamping drive cylinder 420 is connected with the clamping misalignment mechanism 430, the clamping misalignment mechanism 430 drives the clamping drive cylinder 420 to move in a first direction to approach or move away from the axis of the upper pressing head 210 and the lower supporting rod 310, the guide clamping jaw 410 is arranged in pairs and connected with the clamping drive cylinder 420, the clamping drive cylinder 420 drives the two guide clamping jaws 410 to approach or move away from each other in a second direction, and the second direction intersects the first direction.

[0066] As shown in Figure 3 In the embodiment, the clamping misalignment mechanism 430 can include a misalignment drive member 431, which can be a servo cylinder with high control accuracy. The misalignment drive member 431 can be fixed on the bottom side of the upper pressing fixed disc 230, and its piston end can be slidably arranged along the Y-axis direction, and its axis can pass through the axes of the upper pressing head 210 and the lower supporting rod 310. The piston end of the misalignment drive member 431 can be connected with a support frame 432, and the connection position between the piston end of the misalignment drive member 431 and the support frame 432 can be the top end of the support frame 432. The support frame 432 is used to install and fix the clamping drive cylinder 420, and the clamping drive cylinder 420 can be arranged at the bottom end of the support frame 432. The clamping drive cylinder 420 is used to drive the guide clamping jaw 410, and the guide clamping jaw 410 can be arranged in pairs, and the two guide clamping jaws 410 are arranged opposite to each other along the X-axis direction and are connected with the clamping drive cylinder 420, and the clamping drive cylinder 420 drives the two guide clamping jaws 410 to approach or move away from each other along the X-axis direction. It can be understood that, in the embodiment, the first direction is the Y-axis direction, and the second direction is the X-axis direction, and the first direction and the second direction are perpendicular to each other.

[0067] As shown in Figure 3 and Figure 4As shown, specifically, when the upper press head 210 and the guide clamping claws 410 guide the rotor assembly 910, the rotor assembly 910 is first fed between the upper press head 210 and the lower support top rod 310, and is coaxial with the upper press head 210 and the lower support top rod 310. Then the upper press servo cylinder 220 drives the upper press fixed disc 230 to move downward in the vertical direction, so as to drive the upper press head 210 and the clamping device 400 on the upper press fixed disc 230 to move synchronously. When the upper press head 210 moves, it abuts against the top end of the rotor assembly 910. After the upper press head 210 abuts against the rotor assembly 910, the clamping drive cylinder 420 is first driven to move the two guide clamping claws 410 away from each other, so as to facilitate the rotor assembly 910 to extend between the two guide clamping claws 410. Then the piston end of the misalignment driving member 431 is driven to move along the Y-axis direction, and drives the support frame 432 and the clamping drive cylinder 420 and the two guide clamping claws 410 arranged on the support frame 432 to move synchronously, so as to drive the clamping drive cylinder 420 and the two guide clamping claws 410 to move along the Y-axis direction and close to the rotor assembly 910. Then the clamping drive cylinder 420 drives the two guide clamping claws 410 to move close to each other, so as to clamp the top end of the rotor assembly 910 by the two guide clamping claws 410. Subsequently, the upper press servo cylinder 220 drives the upper press fixed disc 230 to continue to move, so as to achieve the purpose of guiding the rotor assembly 910 by the upper press head 210 and the guide clamping claws 410 synchronously, so as to facilitate the middle part of the bottom end of the rotor assembly 910 to extend into the stator assembly 920.

[0068] As shown in FIGS. 1 to 3, the upper press head 210 is arranged on the upper press fixed disc 230, and the clamping device 400 is arranged on the upper press head 210. The clamping device 400 comprises two guide clamping claws 410 and a clamping drive cylinder 420. The two guide clamping claws 410 are arranged on the upper press head 210, and the clamping drive cylinder 420 is arranged on the upper press head 210 and drives the two guide clamping claws 410 to move. Figure 4 As shown in FIGS. 1 to 3, the upper press head 210 is arranged on the upper press fixed disc 230, and the clamping device 400 is arranged on the upper press head 210. The clamping device 400 comprises two guide clamping claws 410 and a clamping drive cylinder 420. The two guide clamping claws 410 are arranged on the upper press head 210, and the clamping drive cylinder 420 is arranged on the upper press head 210 and drives the two guide clamping claws 410 to move. Figure 6 As shown in FIGS. 1 to 3, the upper press head 210 is arranged on the upper press fixed disc 230, and the clamping device 400 is arranged on the upper press head 210. The clamping device 400 comprises two guide clamping claws 410 and a clamping drive cylinder 420. The two guide clamping claws 410 are arranged on the upper press head 210, and the clamping drive cylinder 420 is arranged on the upper press head 210 and drives the two guide clamping claws 410 to move.

[0069] It can be understood that the embodiment drives the two guide clamping claws 410 to move in the first direction through the clamping driving cylinder 420, and drives the clamping driving cylinder 420 and the two guide clamping claws 410 to move in the second direction through the clamping misalignment mechanism 430, so as to realize clamping of the top end of the rotor assembly 910, facilitate the bottom end and the middle part of the rotor assembly 910 to enter the stator assembly 920, and avoid interference between the clamping device 400 and the power assembly shell 930, so as to facilitate the top end of the rotor assembly 910 to enter the stator assembly 920, and achieve the purpose of assembling the rotor assembly 910 in place.

[0070] As shown in Figure 3 In the embodiment, the clamping misalignment mechanism 430 can further include a misalignment guide assembly 440, which can be spaced apart in the X-axis direction and include a misalignment guide rail 441 and a misalignment guide block 442. The misalignment guide rail 441 can extend in the Y-axis direction and be arranged at the bottom side of the upper pressing fixed disc 230. The misalignment guide block 442 can be slidably arranged on the misalignment guide rail 441 and connected to the top end of the support frame 432. When the misalignment driving member 431 drives the support frame 432 to move, the support frame 432 can drive the misalignment guide block 442 to move synchronously on the misalignment guide rail 441. The misalignment guide block 442 cooperates with the misalignment guide rail 441 to guide the movement of the support frame 432, thereby improving the stability of the support frame 432 during movement.

[0071] Specifically, the rotor assembly 910 includes a rotating shaft 911 and a rotor core 912. The rotor core 912 is sleeved on the middle part of the rotating shaft 911. The guide clamping claw 410 clamps the top end of the rotor core 912. The height of the guide clamping claw 410 is one third to two fifths of the axial length of the rotor core 912.

[0072] As shown in Figure 3 and Figure 4 In the embodiment, the rotating shaft 911 and the rotor core 912 are coaxially arranged. The rotor core 912 is arranged in a cylindrical shape and is sleeved and fixed on the middle part of the rotating shaft 911. The two ends of the rotating shaft 911 extend out of the two ends of the rotor core 912. The clamping position of the guide clamping claw 410 on the rotor assembly 910 is the top end of the rotor core 912.

[0073] It can be understood that the center of gravity of the rotor assembly 910 is located in the middle of the rotor assembly 910, and when the rotor assembly 910 is only subjected to the magnetic force, the center of gravity of the rotor assembly 910 is offset and rubs against the stator assembly 920. When the rotor assembly 910 is also subjected to the clamping force at the top end, the clamping force can offset the magnetic force, so that the rotor assembly 910 is not easy to be offset. When the height of the guide clamping claw 410 is small, the contact area of the guide clamping claw 410 with the rotor assembly 910 is small, and the clamping effect of the guide clamping claw 410 on the rotor assembly 910 is poor, and the rotor assembly 910 still has the possibility of being offset. When the height of the guide clamping claw 410 is large, the middle of the rotor assembly 910 cannot enter the stator assembly 920 due to the interference between the guide clamping claw 410 and the power assembly shell 930, the effective distance of the guide clamping claw 410 and the upper press head 210 guiding the rotor assembly 910 is shortened, and the length of the lower supporting top rod 310 is increased.

[0074] In summary, the height of the guide clamping claw 410 can be one-third to two-fifths of the axial length of the rotor core 912. Within this range, the guide clamping claw 410 can not only guarantee the clamping effect on the rotor assembly 910, so that the bottom end and the middle of the rotor assembly 910 are not easy to rub against the stator assembly 920 when entering the stator assembly 920, but also can avoid the length of the lower supporting top rod 310 being too long to avoid the phenomenon of the lower supporting top rod 310 being offset or even broken.

[0075] Specifically, the lower top device 300 further comprises a lower top servo motor 320, a lower top screw assembly 330 and a lower top fixed disc 340. The lower top servo motor 320 is arranged on the rack 100, the lower top screw assembly 330 is in transmission with the lower top servo motor 320, the lower top fixed disc 340 is connected with the lower top screw assembly 330, the lower top screw assembly 330 drives the lower top fixed disc 340 to move in the vertical direction, and the lower supporting top rod 310 is fixed on the lower top fixed disc 340.

[0076] As Figure 5 and Figure 7As shown, in the present embodiment, the lower top servo motor 320 is exemplarily illustrated as being fixed on the frame 100, and its output end is arranged upward along the vertical direction. The lower top screw assembly 330 can include a lower top sliding nut 331 and a lower top rotating screw 332, wherein the lower top rotating screw 332 is arranged along the vertical direction, and can be arranged side by side along the X-axis direction on one side of the lower top servo motor 320. A set of belt wheel assemblies 350 can be arranged between the output end of the lower top servo motor 320 and the lower top rotating screw 332, through which the lower top servo motor 320 is in transmission with the lower top rotating screw 332. The belt wheel assembly 350 can include a driving belt wheel 351, a driven belt wheel 352 and a transmission belt 353. The driving belt wheel 351 can be sleeved and fixed on the output end of the lower top servo motor 320, the driven belt wheel 352 can be sleeved and fixed on the top end of the lower top rotating screw 332, and the transmission belt 353 can be engaged between the driving belt wheel 351 and the driven belt wheel 352. The lower top sliding nut 331 is in threaded connection with the lower top rotating screw 332, and is arranged directly below the driven belt wheel 352. The lower top fixed disc 340 can be arranged in a rectangular shape, and is connected with the lower top sliding nut 331. The lower top supporting rod 310 is fixed on the lower top fixed disc 340, and can pass through the midpoint of the lower top fixed disc 340.

[0077] It can be understood that when the lower top servo motor 320 rotates, its output end can drive the driving belt wheel 351 to rotate, the driving belt wheel 351 can drive the driven belt wheel 352 to rotate through the transmission belt 353, and the driven belt wheel 352 can drive the lower top rotating screw 332 to rotate. When the lower top rotating screw 332 rotates, the lower top sliding nut 331 moves along the axial direction of the lower top rotating screw 332 (i.e. along the vertical direction), and drives the lower top fixed disc 340 and the lower top supporting rod 310 arranged on the lower top fixed disc 340 to move synchronously, so as to achieve the purpose of driving the lower top supporting rod 310 to move along the vertical direction.

[0078] As shown in Figure 5 and Figure 7 In the present embodiment, the lower top device 300 can further include a lower top guide mechanism 360, which can be arranged in four groups and arranged at the four corners of the lower top fixed disc 340. The lower top guide mechanism 360 can include a guide sliding sleeve 361 and a guide rod 362, wherein the guide rod 362 can be arranged along the vertical direction and fixed on the frame 100; the guide sliding sleeve 361 can be slidably arranged on the guide rod 362 and connected with the lower top fixed disc 340.

[0079] It can be understood that when the lower top fixing disc 340 moves in the vertical direction, the lower top fixing disc 340 can drive the guide sliding sleeve 361 to move on the guide rod 362, and the guide sliding sleeve 361 cooperates with the guide rod 362 to guide the movement of the lower top fixing disc 340, so that the lower top fixing disc 340 can move more stably, and then the lower supporting top rod 310 fixed on the lower top fixing disc 340 can move stably, so as to achieve the purpose of stably guiding the rotor assembly 910.

[0080] As shown in Figure 8 , in the present embodiment, when the upper press head 210 and the lower supporting top rod 310 guide the top end of the rotor assembly 910 to enter the stator assembly 920, the bottom end of the rotor assembly 910 approaches and extends into the top end of the high-speed shaft 950. During this process, because the external spline of the rotor assembly 910 and the internal spline of the high-speed shaft 950 are usually not in the position of just alignment, the external spline of the rotor assembly 910 and the internal spline of the high-speed shaft 950 will first abut each other (refer to the position of Figure 8 ). Even if the external spline of the rotor assembly 910 and the internal spline of the high-speed shaft 950 are just aligned, the external spline and the internal spline are usually unable to smoothly mesh due to the existence of a large resistance. At this time, guiding the rotor assembly 910 into the stator assembly 920 by the upper press head 210 and the lower supporting top rod 310 is easy to cause damage to the external spline and the internal spline. Therefore, when the rotor assembly 910 and the high-speed shaft 950 abut each other, the upper press head 210 stops moving downward in the vertical direction, and the "pressing up" of the rotor assembly 910 is cancelled. While the lower supporting top rod 310 continues to move downward in the vertical direction, and the "topping down" of the rotor assembly 910 is cancelled.

[0081] As shown in Figure 9 , when the lower supporting top rod 310 moves a specified distance, the high-speed shaft 950 is rotated to align the internal spline with the external spline, or the gap between the internal spline and the external spline is adjusted to reduce the resistance when meshing, so that the rotor continues to move downward in the vertical direction under the action of gravity, and then the external spline extends into the internal spline to mesh with each other, and the rotor assembly 910 is driven by the high-speed shaft 950 (refer to the position of Figure 9 ).

[0082] As shown in Figure 5 and Figure 7As shown, in this embodiment, the high-speed shaft 950 can be driven to rotate by the fork device 120. The fork device 120 includes a fork piece 121, a fork servo cylinder 122, and a fork servo motor 123. The fork servo motor 123 can be arranged on the rack 100, and the output end thereof can be arranged upward in the vertical direction. The fork servo cylinder 122 can be arranged on the output end of the fork servo motor 123, and rotate synchronously with the output end of the fork servo motor 123. The piston end of the fork servo cylinder 122 can be arranged upward in the vertical direction. The fork piece 121 can be connected with the piston end of the fork servo cylinder 122, and move synchronously with the output end of the fork servo cylinder 122 in the vertical direction.

[0083] As shown in Figure 6 and Figure 7 can be understood that, when the high-speed shaft 950 needs to be rotated, the fork piece 121 can be first driven to move upward in the vertical direction by the fork servo cylinder 122, so as to extend into and be limited in the shaft system of the gearbox. For example, the shaft system of the gearbox can further include a differential 960, and the fork piece 121 can extend into the differential 960. Then, the fork servo cylinder 122 and the fork piece 121 arranged on the fork servo cylinder 122 are driven to rotate by the fork servo motor 123. When the fork piece 121 rotates, the differential 960 can be driven to rotate synchronously. Since the differential 960 of the gearbox is in transmission with the high-speed shaft 950, when the differential 960 rotates, the high-speed shaft 950 can be driven to rotate synchronously, thereby facilitating the mutual engagement and transmission between the rotor assembly 910 and the high-speed shaft 950.

[0084] More specifically, the lower support top rod 310 is elastically arranged, and includes a first rod body 311 and a second rod body 312. The first rod body 311 is slidably arranged in the second rod body 312 in the vertical direction. An elastic member 313 is arranged between the first rod body 311 and the second rod body 312.

[0085] As shown in Figure 8 and Figure 10 In this embodiment, the first rod body 311 can be coaxially arranged with the second rod body 312, and arranged at the top end of the second rod body 312. When the lower support top rod 310 guides the rotor assembly 910, the first rod body 311 abuts against the bottom end of the rotor assembly 910. In order to prevent the rotor assembly 910 from shaking or deviating on the lower support top rod 310, the top end of the first rod body 311 can extend into the bottom end of the rotor assembly 910. In some embodiments, the bottom end of the rotor assembly 910 can also extend into the top end of the first rod body 311.

[0086] In this embodiment, the bottom end of the first rod 311 can extend into the second rod 312, and the top end of the second rod 312 can be provided with a first countersunk hole for the first rod 311 to extend into. The bottom end of the first rod 311 can also be provided with a second countersunk hole, which is positioned opposite to the first countersunk hole. The elastic element 313 can be a spring, and can be elastically disposed between the bottom side of the first countersunk hole and the top side of the second countersunk hole.

[0087] Understandably, when the rotor assembly 910 abuts against the high-speed shaft 950, by controlling the distance the lower support rod 310 continues to move downwards in the vertical direction, the rotor assembly 910 can continue to move downwards in the vertical direction and fall onto the lower support rod 310. The elastically configured lower support rod 310 can dampen and buffer the rotor assembly 910, reducing the vibration generated when the rotor assembly 910 falls, thus making the rotor assembly 910 move more smoothly as it continues to move downwards, avoiding damage to the splines used for meshing when the rotor assembly 910 meshes with the high-speed shaft 950; at the same time, it can reduce the impact on the lower support rod 310, ensuring the structural stability of the lower support rod 310, thus making the lower support rod 310 less prone to displacement or breakage.

[0088] like Figure 8 and Figure 10 As shown, in this embodiment, the first rod 311 can be connected to the second rod 312 by a connecting bolt 314. The connecting bolt 314 passes through the first rod 311 and the elastic member 313 along the axial direction of the first rod 311 and is threaded to one end of the top of the second rod 312. The bolt head of the connecting bolt 314 is embedded in one end of the top of the first rod 311, and the first rod 311 is slidably mounted on the connecting bolt 314.

[0089] It is understood that in this embodiment, the first rod 311 and the second rod 312 are connected by connecting bolts 314, which can prevent the first rod 311 from separating from the second rod 312 due to the rebound of the elastic element 313, thereby ensuring the elastic function of the lower support rod 310.

[0090] More specifically, the auxiliary assembly equipment for motor rotor assembly into the housing also includes a pressure detection device 500, a controller 600, and an alarm device 700. The pressure detection device 500 is installed on the upper pressure device 200 and is used to detect the downward pressure of the upper pressure head 210 on the rotor assembly 910. The controller 600 is electrically connected to both the pressure detection device 500 and the alarm device 700. The controller 600 is configured to receive the downward pressure sent by the pressure detection device 500, and if the downward pressure does not decrease to a specified value after an instantaneous increase, control the alarm device 700 to issue an alarm for the rotor assembly 910 not engaging properly with the high-speed shaft 950.

[0091] As Figure 8 and Figure 11 shown, in the present embodiment, it is exemplarily illustrated that the pressure detection device 500 can be integrally arranged on the piston end of the upper pressing servo cylinder 220, and specifically can be arranged as a pressure sensor. When the upper pressing head 210 abuts against the top end of the rotor assembly 910, the downward pressure of the upper pressing head 210 on the rotor assembly 910 can be transmitted to the pressure detection device 500 through the upper pressing fixed disc 230, and the pressure detection device 500 can detect the downward pressure and send it to the controller 600 electrically connected with the pressure detection device 500, and the controller 600 receives the downward pressure sent by the pressure detection device 500.

[0092] In the present embodiment, when the upper pressing head 210 cooperates with the guide clamping claw 410 to guide the rotor assembly 910, the downward pressure of the upper pressing head 210 on the rotor assembly 910 remains basically unchanged. When the upper pressing head 210 cooperates with the lower support top rod 310 to guide the rotor assembly 910, the downward pressure of the upper pressing head 210 on the rotor assembly 910 can be the value in the previous movement process, and still remains basically unchanged. When the rotor assembly 910 abuts against the high-speed shaft 950, the upper pressing head 210 stops moving, and the downward pressure of the upper pressing head 210 on the rotor assembly 910 remains unchanged. When the high-speed shaft 950 is rotated to engage the rotor assembly 910 with the high-speed shaft 950, the rotor assembly 910 has a tendency to jump upward in the vertical direction before continuing to move downward in the vertical direction by using its own gravity, and exerts a force on the upper pressing head 210 in the vertical direction upward, at this time, due to the existence of the reaction force, the downward pressure of the upper pressing head 210 on the rotor assembly 910 is instantaneously increased. And after the rotor assembly 910 starts to engage with the high-speed shaft 950, the rotor assembly 910 gradually moves away from the upper pressing head 210, and the downward pressure of the upper pressing head 210 on the rotor assembly 910 decreases to a specified value, which can be zero or any initial value preset by the pressure detection device 500.

[0093] As Figure 8 and Figure 11 shown, the controller 600 can also be electrically connected with the alarm device 700, and the controller 600 can be configured to: when the received downward pressure does not decrease to the specified value after the instantaneous increase, it is determined that the rotor assembly 910 does not engage with the high-speed shaft 950 in place, and sends a control signal to the alarm device 700 to control the alarm device 700 to alarm that the rotor assembly 910 does not engage with the high-speed shaft 950 in place. The alarm mode of the alarm device 700 can be specifically audible and visual alarm, such as warning light.

[0094] It can be understood that, by setting the pressure detection device 500, the controller 600 and the alarm device 700, and by reasonably configuring the controller 600, the present embodiment can effectively detect the situation that the rotor assembly 910 is not engaged in place with the high-speed shaft 950, guarantee the accuracy of the position of the rotor assembly 910 when entering the box, and avoid the damage of the spline for engaging the rotor assembly 910 with the high-speed shaft 950.

[0095] More specifically, the motor rotor assembly entering the box auxiliary assembly device further comprises a distance measuring detection device 800, which is arranged on the rack 100 and is used to detect the distance between the specified part thereof and the rotor assembly 910. The distance measuring detection device 800 is electrically connected with the controller 600, and the controller 600 is further configured to receive the distance sent by the distance measuring detection device 800, and control the alarm device 700 to alarm the situation that the rotor assembly 910 is not engaged in place with the high-speed shaft 950 when the distance does not increase to a specified value.

[0096] As shown in Figure 8 , Figure 9 and Figure 11 , in the present embodiment, it is exemplarily illustrated that the rotor assembly 910 can further comprise an end cover 913, that is, the end cover 913 of the motor can be disassembled at the top end of the rotating shaft 911 and the rotor core 912, and the top side of the end cover 913 can be higher than the top side of the rotating shaft 911. When the rotor assembly 910 is in place, the end cover 913 can cover the top end of the power assembly shell 930. In the present embodiment, the specified part of the rotor assembly 910 detected by the distance measuring detection device 800 can be the top side of the end cover 913. The distance measuring detection device 800 can adopt a distance measuring sensor, which can be fixed on the rack 100 and is used to detect the distance between the distance measuring sensor and the end cover 913. After detecting the distance, the distance measuring detection device 800 sends the distance to the controller 600, and the controller 600 receives the distance.

[0097] In this embodiment, when the rotor assembly 910 abuts against the high-speed shaft 950, the upper press head 210 can extend into the end cover 913 and simultaneously abut against the top side of both the shaft 911 and the end cover 913. At this time, there is no gap or a very small gap between the upper press head 210 and the top side of the end cover 913. The detection signal of the distance measuring and detection device 800 can extend horizontally and is directly opposite the top side of the end cover 913. When the rotor assembly 910 abuts against the high-speed shaft 950, the distance detected by the distance measuring and detection device 800 is the distance between the distance measuring and detection device 800 and the end cover 913. When the rotor assembly 910 meshes with the high-speed shaft 950, the rotor assembly 910 continues to move downward in the vertical direction. Since the upper press head 210 stops moving at this time, a large gap is formed between the end cover 913 and the upper press head 210. At this time, the distance detected by the distance measuring device 800 is the distance between the distance measuring device 800 and the upper press head 210. The distance detected by the distance measuring device 800 increases and increases to a specified value, that is, the "specified value" is the distance between the distance measuring device 800 and the upper press head 210.

[0098] like Figure 11 As shown, the controller 600 is also configured to: when the received distance does not increase to a specified value, determine that the rotor assembly 910 and the high-speed shaft 950 are not properly engaged, and send a control signal to the alarm device 700 to control the alarm device 700 to alarm the situation where the rotor assembly 910 and the high-speed shaft 950 are not properly engaged.

[0099] It is understood that this embodiment also improves the detection effect of the rotor assembly 910 and high-speed shaft 950 not meshing properly by setting a ranging detection device 800 and by reasonably configuring the controller 600. With the help of the pressure detection device 500, this embodiment can ensure the accuracy and effectiveness of the detection results.

[0100] The implementation principle of the auxiliary assembly equipment for motor rotor assembly boxing provided in Embodiment 1 of this application is as follows:

[0101] When the rotor assembly 910 is sent to the lower of the upper pressing device 200, the upper pressing servo cylinder 220 is driven to move the upper pressing fixed disc 230 downward along the vertical direction, so as to drive the upper pressing machine head 210 and the clamping device 400 on the upper pressing fixed disc 230 to move synchronously. When the upper pressing machine head 210 moves, it abuts against the top end of the rotor assembly 910. When the upper pressing machine head 210 abuts against the rotor assembly 910, the clamping driving cylinder 420 is first driven to move the two guide clamping claws 410 away from each other, so as to facilitate the rotor assembly 910 to extend between the two guide clamping claws 410. Then the piston end of the dislocation driving member 431 is driven to move along the Y-axis direction, and drives the support frame 432, the clamping driving cylinder 420 and the two guide clamping claws 410 arranged on the support frame 432 to move synchronously, so as to move the clamping driving cylinder 420 and the two guide clamping claws 410 along the Y-axis direction to be close to the rotor assembly 910. Then the clamping driving cylinder 420 is driven to move the two guide clamping claws 410 close to each other, so that the two guide clamping claws 410 clamp the top end of the rotor assembly 910. Then the upper pressing machine head 210 and the guide clamping claws 410 move downward along the vertical direction synchronously, and the lower top device 300 is not in action, the rotor assembly 910 is guided by the upper pressing machine head 210 and the guide clamping claws 410 to be close to the motor to be assembled and enter the stator assembly 920 of the motor.

[0102] When the bottom end and the middle part of the rotor assembly 910 enter the stator assembly 920, the lower top servo motor 320 is rotated, and drives the driving pulley 351 to rotate, the driving pulley 351 drives the driven pulley 352 to rotate through the transmission belt 353, and the driven pulley 352 drives the lower top rotating lead screw 332 to rotate. When the lower top rotating lead screw 332 rotates, the lower top sliding nut 331 moves along the vertical direction, and drives the lower top fixed disc 340 and the lower supporting top rod 310 arranged on the lower top fixed disc 340 to move synchronously, so as to make the lower supporting top rod 310 pass through the lower housing 940 and the high-speed shaft 950 of the gearbox in sequence, and abut against the bottom end of the rotor assembly 910. When the lower supporting top rod 310 abuts against the bottom end of the rotor assembly 910, the guide clamping claws 410 are loosened and the guiding of the rotor assembly 910 is stopped. Then the upper pressing machine head 210 and the lower supporting top rod 310 move downward along the vertical direction synchronously, so as to guide the rotor assembly 910 to continue to move downward along the vertical direction, and then the top end of the rotor assembly 910 also enters the stator assembly 920.

[0103] When the rotor assembly 910 abuts against the high-speed shaft 950, the lower support top rod 310 continues to move downward in the vertical direction by a specified distance. Then the fork piece 121 is driven by the fork servo cylinder 122 to move upward in the vertical direction, so as to extend into and be limited in the shafting of the gearbox. Then the fork servo cylinder 122 and the fork piece 121 arranged on the fork servo cylinder 122 are driven by the fork servo motor 123 to rotate, so as to rotate the high-speed shaft 950, align the inner spline with the outer spline, or adjust the gap between the inner spline and the outer spline to reduce the resistance when meshing, so that the rotor assembly 910 continues to move downward in the vertical direction under the action of gravity, and then the outer spline extends into the inner spline to mesh with each other, and the rotor assembly 910 is driven by the high-speed shaft 950. If the pressure detection device 500 detects that the downward pressure of the upper press head 210 on the rotor assembly 910 does not decrease to a specified value after increasing instantaneously, or the distance detection device 800 detects that the distance between the specified part of the rotor assembly 910 and the distance detection device 800 does not increase to a specified value, the controller 600 controls the alarm device 700 to alarm that the rotor assembly 910 and the high-speed shaft 950 are not meshed in place.

[0104] The present application presses the rotor assembly 910 by the upper press head 210, and clamps the top end of the rotor assembly 910 by the guide clamping claw 410. The rotor assembly 910 can be guided by the upper press head 210 and the guide clamping claw 410, so that the bottom end and the middle part of the rotor assembly 910 are sent into the stator assembly 920, and the bottom end and the middle part of the rotor assembly 910 are prevented from scratching the stator assembly 920. Then the rotor assembly 910 is pressed by the upper press head 210 and is topped by the lower support top rod 310. The rotor assembly 910 can be guided by the upper press head 210 and the lower support top rod 310, so that the top end of the rotor assembly 910 is also sent into the stator assembly 920, and the top end of the rotor assembly 910 is prevented from scratching the stator assembly 920. At the same time, the lower support top rod 310 passes through the high-speed shaft 950, so that the rotor assembly 910 is meshed and driven by the high-speed shaft 950 after being moved in place.

[0105] In summary, since the lower supporting top rod 310 of the present application does not need to pass through the entire stator assembly 920 in the vertical direction, but only needs to move upward in the vertical direction after entering the stator assembly 920 at the top end and the middle of the rotor assembly 910 to pass through the high-speed shaft 950 and extend into the stator assembly 920 to abut the bottom end of the rotor assembly 910, the lower supporting top rod 310 of the present application does not need to be set too long, which can avoid the phenomenon of deviation and fracture of the lower supporting top rod 310 when the lower supporting top rod 310 is too long, thereby avoiding the rotor assembly 910 scratching the stator assembly 920 during the entire assembly process of the rotor assembly 910, and avoiding the phenomenon of damage to the spline used for engagement due to the inconvenience of engagement between the rotor assembly 910 and the high-speed shaft 950.

[0106] Embodiment Two

[0107] Embodiment Two of the present application provides a motor rotor assembly into box auxiliary assembly method, as shown in Figure 12 and Figure 13 The motor rotor assembly into box auxiliary assembly method is realized by any one of the motor rotor assembly into box auxiliary assembly devices provided by the present application, and the motor rotor assembly into box auxiliary assembly method comprises:

[0108] S100, when the rotor assembly 910 moves between the upper pressing machine head 210 and the lower supporting top rod 310, the upper pressing machine head 210 moves downward in the vertical direction and abuts the top end of the rotor assembly 910, and the guide clamping claw 410 clamps the top end of the rotor assembly 910;

[0109] S200, the upper pressing machine head 210 and the guide clamping claw 410 move downward in the vertical direction synchronously to assemble the bottom end and the middle of the rotor assembly 910 into the stator assembly 920;

[0110] S300, when the bottom end and the middle of the rotor assembly 910 enter the stator assembly 920, the lower supporting top rod 310 passes through the high-speed shaft 950 in the vertical direction to abut the bottom end of the rotor assembly 910 in the stator assembly 920;

[0111] S400, when the lower supporting top rod 310 and the upper pressing machine head 210 abut the two ends of the rotor assembly 910 respectively, the guide clamping claw 410 releases the clamping of the rotor assembly 910;

[0112] S500, the upper pressing machine head 210 and the lower supporting top rod 310 move downward in the vertical direction synchronously to assemble the top end of the rotor assembly 910 into the stator assembly 920, and extend the bottom end of the rotor assembly 910 into the high-speed shaft 950 to engage with the high-speed shaft 950.

[0113] The application guides the rotor assembly 910 through the upper pressing head 210 and the guiding clamping claw 410, and then guides the rotor assembly 910 through the upper pressing head 210 and the lower supporting top rod 310, so that the bottom end and the middle part of the rotor assembly 910 are sent into the stator assembly 920, and the bottom end and the middle part of the rotor assembly 910 are prevented from scratching the stator assembly 920. Subsequently, the application guides the rotor assembly 910 through the upper pressing head 210 and the lower supporting top rod 310, so that the top end of the rotor assembly 910 is also sent into the stator assembly 920, and the top end of the rotor assembly 910 is prevented from scratching the stator assembly 920; at the same time, the application guides the rotor assembly 910 to engage and drive the high-speed shaft 950 by passing the lower supporting top rod 310 through the high-speed shaft 950.

[0114] Specifically, the upper pressing head 210 and the lower supporting top rod 310 are synchronously moved downward along the vertical direction to assemble the top end of the rotor assembly 910 into the stator assembly 920, and to extend the bottom end of the rotor assembly 910 into the high-speed shaft 950 to engage with the high-speed shaft 950, that is, step S500, comprising:

[0115] S510, the upper pressing head 210 and the lower supporting top rod 310 are synchronously moved downward along the vertical direction to guide the rotor assembly 910 to move to a position where the bottom end of the rotor assembly 910 abuts against the high-speed shaft 950;

[0116] S520, the upper pressing head 210 stops moving downward along the vertical direction, and the lower supporting top rod 310 continues to move downward along the vertical direction by a specified distance, which is less than or equal to the engagement length when the rotor assembly 910 engages with the high-speed shaft 950;

[0117] S530, the high-speed shaft 950 is rotated to engage the rotor assembly 910 with the high-speed shaft 950, and the rotor assembly 910 continues to move downward along the vertical direction and further into the high-speed shaft 950.

[0118] In this embodiment, it is exemplarily illustrated that the specified distance depends on the engagement length, and the engagement length can be understood as the distance that the bottom end of the rotor assembly 910 moves from the beginning of engagement of the rotor assembly 910 with the high-speed shaft 950 to the complete engagement of the rotor assembly 910 with the high-speed shaft 950, and the specified distance is less than or equal to the engagement length.

[0119] It can be understood that, since the specified distance of the downward supporting top rod 310 moving is less than or equal to the meshing length when the rotor assembly 910 and the high-speed shaft 950 are mutually meshed, the rotor assembly 910 can fall on the downward supporting top rod 310 after continuing to move downward in the vertical direction in step S530. Since the downward supporting top rod 310 is elastically arranged, when the rotor assembly 910 falls on the downward supporting top rod 310, the elastically arranged downward supporting top rod 310 can damp and buffer the rotor assembly 910 to reduce the vibration generated when the rotor assembly 910 falls, so that the rotor assembly 910 is more stable when continuing to move downward, avoiding the spline for meshing being damaged when the rotor assembly 910 and the high-speed shaft 950 are mutually meshed; at the same time, the impact on the downward supporting top rod 310 can be reduced to protect the structural stability of the downward supporting top rod 310, so that the downward supporting top rod 310 is not easy to be offset or broken.

[0120] It can also be understood that, in step S510, that is, in the process of guiding the rotor assembly 910 by the downward supporting top rod 310 and moving the rotor assembly 910 downward, when the rotor assembly 910 abuts against the high-speed shaft 950 and stops moving, the elastically arranged downward supporting top rod 310 can also facilitate the rotor assembly 910 to overcome its moving inertia to reduce the downward pressure of the rotor assembly 910 on the high-speed shaft 950, so that the outer spline of the rotor assembly 910 and the inner spline of the high-speed shaft 950 are not easy to be damaged.

[0121] The technical features of the above embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0122] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that, for those skilled in the art, without departing from the concept of the present application, some modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An electric machine rotor assembly-in-housing auxiliary assembly device for assembling a rotor assembly (910) of an electric machine into a stator assembly (920) of the electric machine, the electric machine being integrated with a transmission housing, the transmission housing including a high speed shaft (950), a bottom end of the rotor assembly (910) extending into the high speed shaft (950) and engaging the high speed shaft (950), characterized by, The motor rotor assembly boxing auxiliary assembly device comprises: a rack (100); an upper pressing device (200) comprising an upper pressing head (210) slidably arranged on the rack (100) in the vertical direction and used for abutting against a top end of the rotor assembly (910); a clamping device (400) comprising a guide clamping claw (410) slidably arranged below the upper pressing device (200) in the vertical direction and used for clamping the top end of the rotor assembly (910), when the upper pressing head (210) abuts against the top end of the rotor assembly (910) and the guide clamping claw (410) clamps the rotor assembly (910), the guide clamping claw (410) and the upper pressing head (210) are synchronously moved downward in the vertical direction to assemble a bottom end and a middle part of the rotor assembly (910) into the stator assembly (920); and a lower lifting device (300) comprising a lower supporting lifting rod (310) slidably arranged directly below the upper pressing head (210) in the vertical direction and used for penetrating into the stator assembly (920) through the high-speed shaft (950) to abut against the bottom end of the rotor assembly (910), when the lower supporting lifting rod (310) and the upper pressing head (210) abut against the rotor assembly (910), the lower supporting lifting rod (310) and the upper pressing head (210) are synchronously moved downward in the vertical direction to assemble the top end of the rotor assembly (910) into the stator assembly (920) and extend the bottom end of the rotor assembly (910) into the high-speed shaft (950) to engage with the high-speed shaft (950); the lower lifting device (300) further comprises a lower lifting servo motor (320), a lower lifting screw assembly (330) and a lower lifting fixing disc (340), the lower lifting servo motor (320) is arranged on the rack (100), the lower lifting screw assembly (330) is in transmission with the lower lifting servo motor (320), the lower lifting fixing disc (340) is connected with the lower lifting screw assembly (330), the lower lifting screw assembly (330) drives the lower lifting fixing disc (340) to move in the vertical direction, and the lower supporting lifting rod (310) is fixed on the lower lifting fixing disc (340); the lower supporting lifting rod (310) is elastically arranged and comprises a first rod body (311) and a second rod body (312), the first rod body (311) is slidably arranged in the second rod body (312) in the vertical direction, and an elastic member (313) is arranged between the first rod body (311) and the second rod body (312).

2. The motor rotor assembly in-box assist assembly apparatus of claim 1, wherein, The upper pressing device (200) further comprises an upper pressing servo electric cylinder (220) and an upper pressing fixed disc (230), the upper pressing servo electric cylinder (220) is arranged on the rack (100), the upper pressing fixed disc (230) is connected with the upper pressing servo electric cylinder (220), the upper pressing servo electric cylinder (220) drives the upper pressing fixed disc (230) to move in the vertical direction, and the upper pressing head (210) and the clamping device (400) are arranged on the upper pressing fixed disc (230).

3. The motor rotor assembly in-box assist assembly apparatus of claim 2, wherein, The clamping device (400) further comprises a clamping driving cylinder (420) and a clamping misalignment mechanism (430), the clamping misalignment mechanism (430) is arranged on the upper pressing fixed disc (230), the clamping driving cylinder (420) is connected with the clamping misalignment mechanism (430), the clamping misalignment mechanism (430) drives the clamping driving cylinder (420) to move in a first direction to approach or move away from the axis of the upper pressing head (210) and the lower supporting top rod (310), the guide clamping claw (410) is arranged in pairs and connected with the clamping driving cylinder (420), the clamping driving cylinder (420) drives two guide clamping claws (410) to approach or move away from each other in a second direction, and the second direction intersects the first direction.

4. The motor rotor assembly in-box assist assembly apparatus of claim 1, wherein, The rotor assembly (910) comprises a rotating shaft (911) and a rotor core (912), the rotor core (912) is sleeved on the middle part of the rotating shaft (911), the guide clamping claw (410) clamps the top end of the rotor core (912), and the height of the guide clamping claw (410) is one third to two fifths of the axial length of the rotor core (912).

5. The motor rotor assembly in-box assist assembly apparatus of claim 1, wherein, The motor rotor assembly boxing auxiliary assembly device further comprises a pressure detection device (500), a controller (600) and an alarm device (700), the pressure detection device (500) is arranged on the upper pressing device (200) and is used for detecting the downward pressure of the upper pressing head (210) on the rotor assembly (910), the controller (600) is electrically connected with the pressure detection device (500) and the alarm device (700), the controller (600) is configured to receive the downward pressure sent by the pressure detection device (500), and when the downward pressure does not decrease to a specified value after instantaneously increasing, the controller (600) controls the alarm device (700) to alarm that the rotor assembly (910) and the high-speed shaft (950) are not engaged in place.

6. The motor rotor assembly in-box assist assembly apparatus of claim 5, wherein, The motor rotor assembly into the box auxiliary assembly equipment further comprises a distance measuring detection device (800) arranged on the rack (100) and used for detecting the distance between the distance measuring detection device (800) and a specified part of the rotor assembly (910), the distance measuring detection device (800) is electrically connected with the controller (600), and the controller (600) is further configured to receive the distance sent by the distance measuring detection device (800), and control the alarm device (700) to alarm that the rotor assembly (910) is not engaged with the high-speed shaft (950) in place when the distance is not increased to a specified value.

7. A method of facilitating assembly of a motor rotor assembly into a housing, the method comprising: The motor rotor assembly into the box auxiliary assembly method is realized by the motor rotor assembly into the box auxiliary assembly equipment according to any one of claims 1 to 6, and the motor rotor assembly into the box auxiliary assembly method comprises: When the rotor assembly (910) moves to between the upper pressing machine head (210) and the lower supporting ejector rod (310), the upper pressing machine head (210) moves downward along the vertical direction and abuts against one end of the top of the rotor assembly (910), and the guide clamping claw (410) clamps one end of the top of the rotor assembly (910); The upper pressing machine head (210) and the guide clamping claw (410) move downward along the vertical direction synchronously to assemble one end of the bottom and the middle of the rotor assembly (910) into the stator assembly (920); When one end of the bottom and the middle of the rotor assembly (910) enter the stator assembly (920), the lower supporting ejector rod (310) passes through the high-speed shaft (950) into the stator assembly (920) and abuts against one end of the bottom of the rotor assembly (910) along the vertical direction; When the lower supporting ejector rod (310) and the upper pressing machine head (210) abut against both ends of the rotor assembly (910) respectively, the guide clamping claw (410) releases the clamping of the rotor assembly (910); The upper pressing machine head (210) and the lower supporting ejector rod (310) move downward along the vertical direction synchronously to assemble one end of the top of the rotor assembly (910) into the stator assembly (920) and make one end of the bottom of the rotor assembly (910) extend into the high-speed shaft (950) and engage with the high-speed shaft (950).

8. The method of claim 7, wherein, The upper pressing machine head (210) and the lower supporting ejector rod (310) move downward along the vertical direction synchronously to assemble one end of the top of the rotor assembly (910) into the stator assembly (920) and make one end of the bottom of the rotor assembly (910) extend into the high-speed shaft (950) and engage with the high-speed shaft (950), comprising: The upper pressing machine head (210) and the lower supporting ejector rod (310) move downward along the vertical direction synchronously to guide the rotor assembly (910) to move to a position where one end of the bottom of the rotor assembly (910) abuts against the high-speed shaft (950); The upper pressing machine head (210) and the lower supporting ejector rod (310) move downward along the vertical direction synchronously to guide the rotor assembly (910) to move to a position where one end of the bottom of the rotor assembly (910) abuts against the high-speed shaft (950); The upper press head (210) stops moving downward in the vertical direction, and the lower support top rod (310) continues to move downward in the vertical direction by a specified distance, which is less than or equal to the engagement length when the rotor assembly (910) is engaged with the high-speed shaft (950); The high-speed shaft (950) is rotated to engage the rotor assembly (910) with the high-speed shaft (950), and the rotor assembly (910) continues to move downward in the vertical direction and further into the high-speed shaft (950).

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