Sealing device and method for driving water inlet and water outlet of motor shell

Abstract

The invention discloses a sealing device and method for a water inlet and a water outlet of a driving motor shell, and belongs to the technical field of driving motor shells. The sealing device comprises a machine table and a sealing assembly. A support, a clamp plate, a clamp and a plugging disc are arranged on the machine table, the clamp plate is rotatably arranged on the machine table, the clamp is located on the clamp plate, and a plurality of plugs are placed on the plugging disc; the sealing assembly comprises a driving module, a main shaft and a connecting shaft, the driving module is located on the support, the connecting shaft is provided with a cavity, an air inlet and a plurality of through holes formed in the radial direction, the top end of the cavity is communicated with the air inlet, a piston is slidably inserted into the bottom end of the cavity in the Z-axis direction, the piston rod is sleeved with an elastic piece, and balls are movably inserted into the through holes. The bottom end of the piston rod is provided with multiple slopes. According to the sealing device for the water inlet and outlet of the driving motor shell, the water inlet and outlet of the driving motor shell can be automatically sealed.

Description

Technical Field

[0001] The invention belongs to the technical field of drive motor casings, and in particular relates to a sealing device and method for a water inlet and outlet of a drive motor casing. Background Art

[0002] The drive motor is the power source of new energy vehicles. The drive motor itself is required to have good heat dissipation performance to meet the continuous output capacity of the drive motor. Therefore, the waterway design of the drive motor is particularly important. The waterway is set in the drive motor casing (tubular structure) to dissipate heat for the drive motor. The two ends of the waterway are the water inlet and outlet arranged at intervals (arranged radially).

[0003] In the related art, the drive motor housing needs to be machined after die-casting, and the aluminum chips generated during machining can easily enter the waterway through the water inlet or outlet and block the waterway, thereby affecting the heat dissipation performance of the drive motor housing. Therefore, before machining, workers will use tools to manually insert plugs (after the tool is inserted into the corresponding groove on the top of the plug, the plug is transferred and inserted) to sequentially block the water inlet and outlet of the drive motor housing to prevent subsequent aluminum chips from entering.

[0004] However, in the process of plugging the drive motor housing, not only will the labor of workers be increased, but it may also lead to the problem of inadequate plugging. Summary of the invention

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides a sealing device and method for the water inlet and outlet of a drive motor casing, which aims to automatically achieve the sealing of the water inlet and outlet of the drive motor casing, which not only greatly reduces the labor of workers, but also effectively avoids the problem of inadequate manual sealing.

[0006] To achieve the above-mentioned object, in a first aspect, the present invention provides a sealing device for driving a water inlet and outlet of a motor housing, the sealing device comprising a machine platform and a sealing assembly;

[0007] The machine platform is provided with a bracket, a fixture plate, a fixture and a plugging plate. The fixture plate is perpendicular to the machine platform and is rotatably arranged on the machine platform. The fixture is located on the fixture plate to vertically clamp the drive motor housing on the fixture plate. A plurality of plugs arranged at intervals are placed on the plugging plate.

[0008] The sealing assembly includes a driving module, a main shaft and a connecting shaft. The driving module is located on the bracket. The driving module is used to drive the main shaft to move along the X-axis direction, the Y-axis direction and the Z-axis direction. The connecting shaft and the main shaft are arranged and connected along the Z-axis direction. The bottom end of the connecting shaft is used to be inserted into the groove of the plug. The connecting shaft has a cavity, an air inlet and a plurality of through holes arranged radially. The top of the cavity is communicated with the air inlet. A piston is slidably inserted into the bottom end of the cavity along the Z-axis direction. A piston rod is vertically fixed to the bottom surface of the piston. An elastic member is sleeved on the piston rod, and the two ends of the elastic member are respectively against the piston and the connecting shaft to drive the piston to reset. A ball is movably inserted in each of the through holes. The outer periphery of the bottom end of the piston rod has a plurality of inclined surfaces, and each of the inclined surfaces is arranged relative to the corresponding through hole, so that during the downward movement of the piston rod along the Z-axis direction, the corresponding ball is driven to extend out of the connecting shaft and then be clamped in the corresponding groove of the plug.

[0009] Optionally, a mounting seat is provided on the machine platform, and the fixture plate is rotatably arranged on the mounting seat.

[0010] Optionally, a motor is inserted into the mounting seat, and an output end of the motor is vertically connected to the fixture plate.

[0011] Optionally, the clamp comprises a plurality of rotary clamping cylinders, which are arranged at intervals along the circumference of the clamp plate.

[0012] Optionally, the fixture plate has a plurality of locating pins arranged at intervals, and each of the locating pins is used to be inserted into a corresponding locating hole in the driving motor housing.

[0013] Optionally, an air intake pipe is provided on the main shaft, and the air intake pipe is connected to the air inlet.

[0014] Optionally, the driving module includes a first linear module, a second linear module and a third linear module, the first linear module is located on the bracket, the output end of the first linear module is transmission connected to the second linear module to drive the second linear module to move along the X-axis direction, the output end of the second linear module is transmission connected to the third linear module to drive the third linear module to move along the Y-axis direction, and the output end of the third linear module is transmission connected to the spindle to drive the spindle to move along the Z-axis direction.

[0015] Optionally, the plugging disk has a plurality of positioning grooves arranged at intervals, and each of the positioning grooves is used for inserting a plug.

[0016] Optionally, a protective shell is provided on the machine platform, and the protective shell covers the bracket, the fixture plate, the fixture and the blocking disk.

[0017] In a second aspect, the present invention provides a sealing method for a water inlet and outlet of a drive motor housing, the sealing method being based on the sealing device described in the first aspect, and the sealing method comprising:

[0018] S1, placing the driving motor housing on the fixture plate, and fixing the driving motor housing on the fixture plate by the fixture, wherein the water inlet or outlet of the driving motor housing is arranged along the Z-axis direction and upward;

[0019] S2, the driving module moves the main shaft so that the bottom end of the connecting shaft is inserted into the groove of the plug on the plugging disk, and the air inlet is inflated through the inflation device, thereby driving the piston and the piston rod to move downward along the Z-axis direction, so that the corresponding ball driven by the inclined surface extends out of the connecting shaft and is stuck in the corresponding groove of the plug;

[0020] S3, the driving module moves the spindle to make the plug inserted into the water inlet or outlet of the driving motor housing, and the air inlet is connected to the outside atmosphere for air release, and the elastic member drives the piston and the piston rod to rise along the Z-axis direction, so that the inclined surface is separated from the corresponding ball, thereby releasing the blocking of the ball on the plug;

[0021] S4, the driving module conveys the main shaft to move, and each of the balls moves toward the direction close to the inclined surface, so that the connecting shaft is separated from the plug, and the clamp plate is rotated so that the water outlet or water inlet of the driving motor housing is arranged along the Z-axis direction and upward, and steps S2-S3 are repeated until another plug is inserted into the water outlet or water inlet of the driving motor housing.

[0022] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0023] In general, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:

[0024] For a sealing device for the water inlet and outlet of a driving motor housing provided by an embodiment of the present invention, when the water inlet and outlet of the driving motor housing are blocked, first, the driving motor housing is placed on a fixture plate, and the driving motor housing is fixed on the fixture plate by a fixture, so that the driving motor housing is fixed on the fixture plate, at this time, the axial direction of the driving motor housing is arranged horizontally, and its water inlet or water outlet is arranged vertically (i.e. arranged in the Z-axis direction), and is upward and located at the top of the driving motor housing. Then, the driving module moves the main shaft so that the bottom end of the connecting shaft is inserted into the groove of the plug on the plugging disk, and the air inlet is inflated by the inflation device, so as to drive the piston and the piston rod to move downward along the Z-axis direction, so that the corresponding ball driven by the inclined surface extends out of the connecting shaft and is stuck in the groove of the corresponding plug. Inflating the air inlet will increase the air pressure in the top of the cavity, thereby pushing the piston and the piston rod to overcome the elastic force of the elastic member and move downward, thereby causing the inclined surface to move downward. When the inclined plane moves downward, the corresponding balls are pushed outward, and a plurality of balls are pushed out of the connecting shaft and stuck in the groove of the plug. At this time, the plug is stuck at the bottom end of the connecting shaft.

[0025] Next, the driving module moves the main shaft (i.e., the plug is transported away from the plugging disk), so that the plug is inserted into the water inlet or outlet of the driving motor housing, thereby automatically and reliably inserting the plug into the water inlet or outlet. The air inlet is connected to the outside atmosphere for venting, and the elastic member drives the piston and the piston rod to rise along the Z-axis direction, so that the inclined surface is separated from the corresponding ball, thereby releasing the ball from the plug. Then, the driving module conveys the main shaft to move, and during the upward movement of the connecting shaft, the balls move toward the direction close to the inclined surface under the friction of the groove, and the connecting shaft is separated from the plug, thereby automatically completing the blocking of the water inlet or outlet. Finally, rotate the fixture plate so that the water outlet or water inlet of the drive motor housing is arranged along the Z-axis direction (that is, the water outlet or water inlet is rotated to be arranged vertically upward, that is, located at the top of the drive motor housing), and repeat the above steps until the other plug is securely inserted into the water outlet or water inlet of the drive motor housing, thereby automatically completing the blocking of the water outlet or water inlet, greatly reducing the labor of workers, and because the sealing is completed by the sealing device, the blocking is uniform and reliable, effectively avoiding the problem of inadequate manual blocking.

[0026] That is to say, the sealing device for the water inlet and outlet of the drive motor casing provided by the embodiment of the present invention can automatically seal the water inlet and outlet of the drive motor casing, which not only greatly reduces the labor of workers, but also effectively avoids the problem of inadequate manual sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a sealing device for a water inlet and outlet of a drive motor housing provided by an embodiment of the present invention;

[0028] Figure 2 is a schematic structural diagram of a connecting shaft provided by an embodiment of the present invention;

[0029] Figure 3 yes Figure 2 A cross-sectional view of

[0030] Figure 4 It is a flow chart of a sealing method for a water inlet and outlet of a drive motor housing provided by an embodiment of the present invention.

[0031] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0032] 1. Machine; 11. Bracket; 12. Fixture plate; 13. Fixture; 14. Blocking plate; 141. Plug; 15. Mounting seat; 16. Protective shell; 2. Sealing assembly; 21. Drive module; 22. Spindle; 221. Inlet pipe; 23. Connecting shaft; 231. Cavity; 232. Inlet port; 233. Through hole; 234. Piston; 235. Piston rod; 2351. Elastic part; 236. Inclined surface; 237. Blocking cap; 24. Ball; 100. Drive motor housing. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] Example:

[0039] Figure 1 is a structural schematic diagram of a sealing device for a water inlet and outlet of a drive motor housing provided by an embodiment of the present invention, such as Figure 1 As shown, the sealing device includes a machine platform 1 and a sealing component 2.

[0040] The machine platform 1 is provided with a bracket 11, a fixture plate 12, a fixture 13 and a plugging plate 14. The fixture plate 12 is perpendicular to the machine platform 1 and is rotatably arranged on the machine platform 1 (i.e., the fixture plate 12 is arranged vertically, and the rotation axis of the fixture plate 12 is arranged horizontally). The fixture 13 is located on the fixture plate 12 to vertically clamp the drive motor housing 100 on the fixture plate 12. A plurality of plugs 141 arranged at intervals are placed on the plugging plate 14.

[0041] The sealing assembly 2 includes a driving module 21, a main shaft 22 and a connecting shaft 23. The driving module 21 is located on the bracket 11. The driving module 21 is used to drive the main shaft 22 to move along the X-axis direction, the Y-axis direction and the Z-axis direction. The connecting shaft 23 and the main shaft 22 are arranged and connected along the Z-axis direction. The bottom end of the connecting shaft 23 is used to be inserted into the groove of the plug 141.

[0042] Figure 2 is a schematic structural diagram of a connecting shaft provided by an embodiment of the present invention, Figure 3 yes Figure 2 The cross-sectional view of Figure 2 and Figure 3 As shown, the connecting shaft 23 has a cavity 231, an air inlet 232 and a plurality of through holes 233 arranged in a radial direction, the top of the cavity 231 is communicated with the air inlet 232, the bottom end of the cavity 231 is slidably inserted with a piston 234 along the Z-axis direction, a piston rod 235 is vertically fixed to the bottom surface of the piston 234, an elastic member 2351 is sleeved on the piston rod 235, and the two ends of the elastic member 2351 are respectively against the piston 234 and the connecting shaft 23 to drive the piston 234 to reset, a ball 24 is movably inserted in each through hole 233, the outer periphery of the bottom end of the piston rod 235 has a plurality of inclined surfaces 236, and each inclined surface 236 is arranged opposite to the corresponding through hole 233, so that when the piston rod 235 moves downward along the Z-axis direction, the corresponding ball 24 is driven to extend out of the connecting shaft 23 and be stuck in the groove of the corresponding plug 141.

[0043] For a sealing device for the water inlet and outlet of a drive motor casing provided in an embodiment of the present invention, when sealing the water inlet and outlet of the drive motor casing 100, first, the drive motor casing 100 is placed on a fixture plate 12, and the drive motor casing 100 is fixed on the fixture plate 12 by a fixture 13, so that the drive motor casing 100 is fixed on the fixture plate 12. At this time, the axial direction of the drive motor casing 100 is arranged horizontally, and its water inlet or water outlet is arranged vertically (i.e., arranged in the Z-axis direction), and is upward and located at the top of the drive motor casing 100. Then, the driving module 21 moves the main shaft 22, so that the bottom end of the connecting shaft 23 is inserted into the groove of the plug 141 on the plugging disk 14, and the air inlet 232 is inflated through the inflating device, thereby driving the piston 234 and the piston rod 235 to move downward along the Z-axis direction, so that the inclined surface 236 drives the corresponding ball 24 to extend out of the connecting shaft 23 and then be stuck in the groove of the corresponding plug 141. Inflating the air inlet 232 will increase the air pressure in the top of the cavity 231, thereby pushing the piston 234 and the piston rod 235 to overcome the elastic force of the elastic member 2351 and move downward, thereby causing the inclined surface 236 to move downward. In the process of the inclined surface 236 moving downward, the corresponding ball 24 will be pushed outward to move outward, and multiple balls 24 will be pushed out of the connecting shaft 23 and stuck in the groove of the plug 141. At this time, the plug 141 is stuck at the bottom end of the connecting shaft 23.

[0044] Next, the driving module 21 moves the main shaft 22 (i.e., the plug 141 is transported away from the plugging plate 14), so that the plug 141 is inserted into the water inlet or outlet of the driving motor housing 100, thereby automatically and reliably inserting the plug 141 into the water inlet or outlet. The air inlet 232 is connected to the outside atmosphere for venting, and the elastic member 2351 drives the piston 234 and the piston rod 235 to rise along the Z-axis direction, so that the inclined surface 236 is separated from the corresponding ball 24, thereby releasing the blocking of the ball 24 on the plug 141. Then, the driving module 21 conveys the main shaft 22 to move, and during the upward movement of the connecting shaft 23, each ball 24 moves toward the direction close to the inclined surface 236 under the friction of the groove, and the connecting shaft 23 is separated from the plug 141, thereby automatically completing the blocking of the water inlet or outlet. Finally, rotate the fixture plate 12 so that the water outlet or water inlet of the drive motor housing 100 is arranged along the Z-axis direction (that is, the water outlet or water inlet is rotated to be arranged vertically upward, that is, located at the top of the drive motor housing 100), and repeat the above steps until the other plug 141 is securely inserted into the water outlet or water inlet of the drive motor housing 100, thereby automatically completing the blocking of the water outlet or water inlet, greatly reducing the labor of workers, and because the sealing is completed by a sealing device, the blocking is uniform and reliable, effectively avoiding the problem of inadequate manual blocking.

[0045] That is to say, the sealing device for the water inlet and outlet of the drive motor casing provided by the embodiment of the present invention can automatically seal the water inlet and outlet of the drive motor casing 100, which not only greatly reduces the labor of workers, but also effectively avoids the problem of inadequate manual sealing.

[0046] Exemplarily, the number of the balls 24 may be 3-4, etc., and they are evenly distributed along the circumference of the connecting shaft 23 .

[0047] Exemplarily, the inner wall of the connecting shaft 23 is stepped in the Z-axis direction, so that the bottom end of the elastic member 2351 can abut against a step.

[0048] In addition, a plug cap 237 is inserted at the top of the connecting shaft 23, and the cavity 231 is located below the plug cap 237. The air inlet is located in the plug cap 237. The two ends of the plug cap 237 are respectively inserted in the connecting shaft 23 and the main shaft 22. The main shaft 22 serves to connect the output end of the driving module 21 with the connecting shaft 23.

[0049] Continue to see Figure 1 The machine platform 1 has a mounting seat 15, and the fixture plate 12 is rotatably arranged on the mounting seat 15. The mounting seat 15 supports the fixture plate 12.

[0050] Furthermore, a motor is inserted into the mounting seat 15, and the output end of the motor is vertically connected to the fixture plate 12. The mounting seat 15 plays the role of installing the motor, and the fixture plate 12 can be automatically rotated by the motor, thereby automatically completing the switching of the water inlet and outlet of the driving motor housing 100.

[0051] In one implementation of the present invention, the fixture 13 includes a plurality of rotating clamping cylinders, which are arranged at intervals along the circumference of the fixture plate 12. The plurality of rotating clamping cylinders can reliably clamp the drive motor housing 100 on the fixture plate 12.

[0052] It should be noted that, in other embodiments of the present invention, the clamp 13 may also be a screw, a buckle or other clamping structure, and the present invention is not limited to this.

[0053] For example, the fixture plate 12 has a plurality of locating pins arranged at intervals, each locating pin is used to be inserted into a corresponding locating hole of the drive motor housing 100. The locating pins can accurately position the drive motor housing 100, ensuring that after it is placed in place, its water inlet or outlet is arranged vertically upward.

[0054] In addition, the main shaft 22 is provided with an air inlet pipe 221, which is connected to the air inlet port 232. When the main shaft 22 moves, the air inlet pipe 221 moves together, thereby realizing air intake or exhaust to the air inlet port 232.

[0055] In one implementation of the present invention, the driving module 21 includes a first linear module, a second linear module and a third linear module. The first linear module is located on the bracket 11. The output end of the first linear module is transmission connected to the second linear module to drive the second linear module to move along the X-axis direction. The output end of the second linear module is transmission connected to the third linear module to drive the third linear module to move along the Y-axis direction. The output end of the third linear module is transmission connected to the main shaft 22 to drive the main shaft 22 to move along the Z-axis direction.

[0056] That is to say, the first linear module can move the main shaft 22 and the connecting shaft 23 along the X-axis direction, the second linear module can move the main shaft 22 and the connecting shaft 23 along the Y-axis direction, and the third linear module can move the main shaft 22 and the connecting shaft 23 along the Z-axis direction, so that the plugs 141 at different positions on the plugging plate 14 can be taken in turn, and the plugs 141 can be transported and inserted into the water inlet or outlet.

[0057] It should be noted that the driving module 21 may also be a robot or other displacement mechanisms, and the present invention is not limited to this.

[0058] Exemplarily, the plugging disk 14 has a plurality of positioning grooves arranged at intervals, each positioning groove is used to insert the plug 141, so as to achieve accurate positioning of the plug 141, ensuring that the plug 141 can be accurately removed after the connecting shaft 23 is displaced.

[0059] In addition, the machine 1 has a protective shell 16, which covers the bracket 11, the fixture plate 12, the fixture 13 and the blocking plate 14. The protective shell 16 covers and protects the bracket 11, the driving module 21, the fixture plate 12, the fixture 13 and the blocking plate 14.

[0060] Exemplarily, the machine 1 also has a control button, which can control the start and stop of the motor and the drive module 21, so as to perform a shutdown inspection in an abnormal state.

[0061] Figure 4 is a flow chart of a sealing method for a water inlet and outlet of a drive motor housing provided by an embodiment of the present invention, such as Figure 4 As shown, the sealing method is based on the above-mentioned sealing device, and the sealing method includes:

[0062] S1. Place the driving motor housing 100 on the fixture plate 12 and fix the driving motor housing 100 on the fixture plate 12 by means of the fixture 13. The water inlet or outlet of the driving motor housing 100 is arranged along the Z-axis direction and upward.

[0063] S2, the driving module 21 moves the main shaft 22, so that the bottom end of the connecting shaft 23 is inserted into the groove of the plug 141 on the plugging disk 14, and the air inlet 232 is inflated through the inflation device, thereby driving the piston 234 and the piston rod 235 to move downward along the Z-axis direction, so that the inclined surface 236 drives the corresponding ball 24 to extend out of the connecting shaft 23 and then be stuck in the groove of the corresponding plug 141.

[0064] S3. The main shaft 22 is moved by the driving module 21, so that the plug 141 is inserted into the water inlet or outlet of the driving motor housing 100, and the air inlet 232 is connected to the outside atmosphere for venting. The elastic member 2351 drives the piston 234 and the piston rod 235 to rise along the Z-axis direction, so that the inclined surface 236 is separated from the corresponding ball 24, thereby releasing the blocking of the ball 24 on the plug 141.

[0065] S4, the conveying main shaft 22 of the driving module 21 moves, and each ball 24 moves toward the direction close to the inclined surface 236, and separates the connecting shaft 23 from the plug 141, and rotates the clamp plate 12 to make the water outlet or water inlet of the driving motor housing 100 arranged along the Z-axis direction and upward, and repeat steps S2-S3 until another plug 141 is inserted into the water outlet or water inlet of the driving motor housing 100.

[0066] A sealing method for the water inlet and outlet of a drive motor casing provided in an embodiment of the present invention can automatically seal the water inlet and outlet of the drive motor casing 100, which not only greatly reduces the labor of workers, but also effectively avoids the problem of inadequate manual sealing.

[0067] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealing device for the water inlet and outlet of a drive motor housing, characterized in that: The sealing device comprises a machine platform (1) and a sealing component (2); The machine platform (1) is provided with a bracket (11), a fixture plate (12), a fixture (13) and a plugging plate (14); the fixture plate (12) is perpendicular to the machine platform (1) and is rotatably arranged on the machine platform (1); the fixture (13) is located on the fixture plate (12) so as to vertically clamp the drive motor housing (100) on the fixture plate (12); and a plurality of plugs (141) arranged at intervals are placed on the plugging plate (14); The sealing assembly (2) comprises a driving module (21), a main shaft (22) and a connecting shaft (23); the driving module (21) is located on the bracket (11); the driving module (21) is used to drive the main shaft (22) to move along the X-axis direction, the Y-axis direction and the Z-axis direction; the connecting shaft (23) and the main shaft (22) are arranged and connected along the Z-axis direction; the bottom end of the connecting shaft (23) is used to be inserted into the groove of the plug (141); the connecting shaft (23) has a cavity (231), an air inlet (232) and a plurality of through holes (233) arranged in a radial direction; the top end of the cavity (231) is connected to the air inlet (232); the bottom end of the cavity (231) is slidably inserted with a piston (233) in the Z-axis direction; 4), a piston rod (235) is vertically fixed to the bottom surface of the piston (234), an elastic member (2351) is sleeved on the piston rod (235), and the two ends of the elastic member (2351) are respectively against the piston (234) and the connecting shaft (23) to drive the piston (234) to reset, and a ball (24) is movably inserted in each of the through holes (233), and the outer periphery of the bottom end of the piston rod (235) has a plurality of inclined surfaces (236), and each of the inclined surfaces (236) is arranged relative to the corresponding through hole (233), so that when the piston rod (235) moves downward along the Z-axis direction, the corresponding ball (24) is driven to extend out of the connecting shaft (23) and then be clamped in the groove of the corresponding plug (141).

2. A sealing device for the water inlet and outlet of a drive motor housing according to claim 1, characterized in that: The machine platform (1) is provided with a mounting seat (15), and the fixture plate (12) is rotatably arranged on the mounting seat (15).

3. A sealing device for the water inlet and outlet of a drive motor housing according to claim 2, characterized in that: A motor is inserted into the mounting seat (15), and an output end of the motor is vertically connected to the fixture plate (12).

4. A sealing device for a water inlet and outlet of a drive motor housing according to claim 1, characterized in that: The clamp (13) comprises a plurality of rotary clamping cylinders, which are arranged at intervals along the circumference of the clamp plate (12).

5. A sealing device for the water inlet and outlet of a drive motor housing according to claim 1, characterized in that: The fixture plate (12) has a plurality of positioning pins arranged at intervals, each of the positioning pins being used to be inserted into a corresponding positioning hole of the drive motor housing (100).

6. A sealing device for the water inlet and outlet of a drive motor housing according to claim 1, characterized in that: An air intake pipe (221) is provided on the main shaft (22), and the air intake pipe (221) is in communication with the air intake port (232).

7. A sealing device for a water inlet and outlet of a drive motor housing according to any one of claims 1 to 6, characterized in that: The driving module (21) comprises a first linear module, a second linear module and a third linear module, the first linear module is located on the bracket (11), the output end of the first linear module is transmission-connected with the second linear module to drive the second linear module to move along the X-axis direction, the output end of the second linear module is transmission-connected with the third linear module to drive the third linear module to move along the Y-axis direction, and the output end of the third linear module is transmission-connected with the main shaft (22) to drive the main shaft (22) to move along the Z-axis direction.

8. A sealing device for a water inlet and outlet of a drive motor housing according to any one of claims 1 to 6, characterized in that: The plugging disk (14) has a plurality of positioning grooves arranged at intervals, each of the positioning grooves being used for inserting a plug (141).

9. A sealing device for a water inlet and outlet of a drive motor housing according to any one of claims 1 to 6, characterized in that: The machine platform (1) is provided with a protective shell (16), and the protective shell (16) covers the bracket (11), the fixture plate (12), the fixture (13) and the blocking plate (14).

10. A sealing method for the water inlet and outlet of a drive motor housing, characterized in that: The sealing method is based on the sealing device according to any one of claims 1 to 9, and the sealing method comprises: S1, placing the drive motor housing (100) on the fixture plate (12), and fixing the drive motor housing (100) on the fixture plate (12) by means of the fixture (13), wherein the water inlet or the water outlet of the drive motor housing (100) is arranged along the Z-axis direction and facing upward; S2, the driving module (21) moves the main shaft (22) so that the bottom end of the connecting shaft (23) is inserted into the groove of the plug (141) on the plugging disk (14), and the air inlet (232) is inflated by the inflation device, thereby driving the piston (234) and the piston rod (235) to move downward along the Z-axis direction, so that the inclined surface (236) drives the corresponding ball (24) to extend out of the connecting shaft (23) and then be stuck in the corresponding groove of the plug (141); S3, the main shaft (22) is moved by the driving module (21), so that the plug (141) is inserted into the water inlet or the water outlet of the driving motor housing (100), and the air inlet (232) is connected to the outside atmosphere for air release, and the elastic member (2351) drives the piston (234) and the piston rod (235) to rise along the Z-axis direction, so that the inclined surface (236) is separated from the corresponding ball (24), thereby releasing the blocking of the ball (24) on the plug (141); S4, the driving module (21) conveys the main shaft (22) to move, and each of the balls (24) moves in a direction close to the inclined surface (236), so that the connecting shaft (23) is separated from the plug (141), and the clamp plate (12) is rotated so that the water outlet or water inlet of the driving motor housing (100) is arranged along the Z-axis direction and upward, and steps S2-S3 are repeated until another plug (141) is inserted into the water outlet or water inlet of the driving motor housing (100).

Images