Stator casing assembly machine

Abstract

The invention provides a stator casing assembly machine, which comprises a workbench, a high-frequency heating mechanism, a press fitting mechanism and a detection mechanism, and is characterized in that the workbench comprises a base table, a rotating disc and a plurality of bases, the rotating disc is rotatably mounted on the base table around the vertical direction, and the plurality of bases are mounted on the rotating disc at intervals along the circumferential direction of the rotating disc; the base is used for placing the conductive shell; the high-frequency heating mechanism is located beside the rotating disc and used for movably embedding the high-frequency coil into the conductive machine shell. The press-fitting mechanism is located beside the rotating disc, is located at the downstream of the high-frequency heating mechanism and is used for clamping the stator assembly and pressing the stator assembly into the conductive machine shell; the detection mechanism is located beside the rotating disc, located on the downstream of the press-fitting mechanism and used for detecting the assembling quality of the conductive machine shell and the stator assembly. According to the equipment, the full-process automation of conductive shell placement, heating, stator assembly press fitting and quality detection is realized, and a plurality of processes are integrated on one piece of equipment, so that the production process is more compact and efficient.

Description

Technical Field

[0001] The present application belongs to the field of motor assembly equipment, and more specifically, to a stator housing assembly machine. Background Art

[0002] In the motor manufacturing industry, heat-shrink fitting is a common method for assembling the stator core and the casing. The so-called heat-shrink fitting means first heating the casing so that the inner diameter of the casing becomes larger after heating, forming a clearance fit with the stator core; then the casing temperature drops, and the clearance fit becomes an interference fit, so that the casing is firmly fitted on the outer wall of the stator core.

[0003] Referring to Chinese patent CN113346686A, the existing process of thermally assembling the stator core and the housing includes: first, manually placing the housing in the coil for heating; second, manually operating the lifting device to lift the housing out of the coil; third, manually assembling the stator core; fourth, manually operating the press-fitting jig to press-fit the stator core into the housing. Therefore, the existing thermally assembling process of the stator and the housing has a technical problem of low automation. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a stator housing assembly machine to solve the problem existing in the related art that the assembly of the stator and the housing has a low degree of automation.

[0005] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is: A stator housing assembly machine is provided, comprising: A workbench, comprising a base, a rotating disc and a plurality of bases, wherein the rotating disc is rotatably mounted on the base in a vertical direction, a plurality of bases are mounted on the rotating disc at intervals along the circumference of the rotating disc, and the base is used to place a conductive housing; A high-frequency heating mechanism, located beside the rotating disk, is used to flexibly embed the high-frequency coil into the conductive housing; A press-fitting mechanism, located beside the rotating disc and downstream of the high-frequency heating mechanism, for clamping the stator assembly and press-fitting the stator assembly into the conductive housing; The detection mechanism is located beside the rotating disc and downstream of the pressing mechanism, and is used to detect the assembly quality of the conductive housing and the stator assembly.

[0006] The stator housing assembly machine provided by the embodiment of the present application has at least the following beneficial effects: The conductive housing is placed on the base. As the base rotates around the vertical direction and passes through the high-frequency heating mechanism, the high-frequency coil heats the conductive housing, causing the conductive housing to expand and its inner diameter to increase. The conductive housing continues to rotate with the base to the press-fitting mechanism. The press-fitting mechanism clamps the stator assembly and presses it into the conductive housing. Since the inner diameter of the conductive housing has increased, the press-fitting is labor-saving. When the temperature of the conductive housing returns to room temperature, the inner diameter of the conductive housing shrinks and has an interference fit with the stator assembly, ensuring a firm assembly. The conductive housing continues to rotate with the base to the detection mechanism. The detection mechanism detects the assembly quality of the conductive housing and the stator assembly, promptly discovers and rejects unqualified products, effectively improving the overall quality and reliability of the products. The stator housing assembly machine provided by the present application realizes the full-process automation from the placement of the conductive housing, heating, press-fitting of the stator assembly to quality detection, greatly reducing the manual operation links, reducing the labor intensity, reducing the labor cost and the errors caused by human factors. Integrating multiple processes on one device reduces the waiting time between production links, making the production process more compact and efficient. At the same time, the integration of processes reduces the floor area of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or exemplary technical descriptions. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0008] Figure 1 is a schematic structural diagram of the stator housing assembly machine provided by the embodiment of the present application; Figure 2 is a working schematic diagram of the workbench of the stator housing assembly machine provided by the embodiment of the present application; Figure 3 is an exploded view of the installation of the base provided by the embodiment of the present application; Figure 4 is a schematic structural diagram of the press-fitting mechanism of the stator housing assembly machine provided by the embodiment of the present application; Figure 5 is a partial structural schematic diagram of the press-fitting mechanism provided by the embodiment of the present application; Figure 6 is Figure 5 an exploded view; Figure 7 is Figure 5 a sectional view taken along line A-A; Figure 8 is a partial structural schematic diagram of the press-fitting mechanism provided by the embodiment of the present application; Figure 9Schematic structural diagram of the high-frequency heating mechanism of the stator housing assembly machine provided by the embodiment of the present application; Figure 10 Schematic structural diagram of the detection mechanism of the stator housing assembly machine provided by the embodiment of the present application; Figure 11 Partial structural schematic diagram of the detection mechanism provided by the embodiment of the present application.

[0009] Among them, the main reference signs in each figure are as follows: 10, conductive housing; 12, mounting hole; 20, stator assembly; 21, stator winding; 22, stator core; 100, workbench; 110, base; 120, rotating disc; 121, rotary mounting hole; 130, base; 131, first arc surface; 132, first reference plane; 133, first central column; 134, seat body; 135, first anti-rotation member; 136, anti-rotation positioning column; 140, disc driving member; 150, camera; 160, infrared sensor; 200, high-frequency heating mechanism; 210, heating bracket; 220, heating driving member; 230, high-frequency coil; 240, second rotary driving member; 250, second horizontal driving member; 260, third anti-rotation member; 261, second anti-rotation notch; 300, press-fitting mechanism; 310, press-fitting driving member; 320, clamping assembly; 321, clamping sleeve; 3211, positioning piece; 322, second central column; 323, cavity; 324, through hole; 325, diameter-changing driving member; 326, diameter-changing driving shaft; 3261, diameter-changing section; 327, radial block; 328, clamping seat; 329, first limit post; 330, press-fitting bracket; 340, first rotary driving member; 350, first horizontal driving member; 360, second anti-rotation member; 361, first anti-rotation notch; 370, first cooling pipe; 380, guiding member; 400, detection mechanism; 410, detection bracket; 420, detection driving member; 430, displacement sensor; 431, elastic detection head; 440, detection auxiliary frame; 450, reference plate; 460, elastic auxiliary member; 470, detection controller; 480, vision sensor; 500, dust suction mechanism; 600, marking mechanism. Detailed implementation manners

[0010] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0011] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0012] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality" means two or more unless otherwise specifically defined. "Several" means one or more unless otherwise specifically defined.

[0013] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this application.

[0014] In the description of this application, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected" and "connected to" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0015] Throughout the specification, reference to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. Thus, the phrases "in one embodiment" or "in some embodiments" appearing throughout the specification do not all refer to the same embodiment. In addition, in one or more embodiments, the specific features, structures, or characteristics may be combined in any suitable manner.

[0016] In the traditional hot-fitting process, there is a lot of manual operation, such as manually placing the casing in the coil for heating, manually hoisting the stator core 22, etc., which has problems of low automation, scattered processes, and low assembly efficiency.

[0017] Please refer to Figure 1 Figure 1

[0018] The high-frequency heating mechanism 200 is located beside the rotating disk 120. The high-frequency heating mechanism 200 is used to movably embed the high-frequency coil 230 into the conductive motor housing 10. The press-fitting mechanism 300 is located beside the rotating disk 120. The press-fitting mechanism 300 is located downstream of the high-frequency heating mechanism 200. The press-fitting mechanism 300 is used to clamp the stator assembly 20 and press-fit the stator assembly 20 into the conductive motor housing 10. The detection mechanism 400 is located beside the rotating disk 120. The detection mechanism 400 is located downstream of the press-fitting mechanism 300. The detection mechanism 400 is used to detect the assembly quality of the conductive motor housing 10 and the stator assembly 20.

[0019] Among them, the conductive motor housing 10 is placed on the base 130. As the base 130 rotates around the vertical direction and passes through the high-frequency heating mechanism 200, the high-frequency coil 230 heats the conductive motor housing 10, causing the conductive motor housing 10 to expand and its inner diameter to increase. The conductive motor housing 10 continues to rotate with the base 130 to the press-fitting mechanism 300, and the press-fitting mechanism 300 clamps the stator assembly 20 and presses it into the conductive motor housing 10. Since the inner diameter of the conductive motor housing 10 increases, the press-fitting is labor-saving. When the temperature of the conductive motor housing 10 returns to room temperature, the inner diameter of the conductive motor housing 10 decreases and forms an interference fit with the stator assembly 20, ensuring a firm assembly. The conductive motor housing 10 continues to rotate with the base 130 to the detection mechanism 400, and the detection mechanism 400 detects the assembly quality of the conductive motor housing 10 and the stator assembly 20, promptly discovers and eliminates unqualified products, effectively improving the overall quality and reliability of the products.

[0020] The stator housing assembly machine provided by this application realizes the full-process automation of placing, heating, press-fitting the stator assembly 20, and quality inspection of the conductive motor housing 10, greatly reducing the manual operation links, reducing the labor intensity, reducing the labor cost and the errors caused by human factors. Integrating multiple processes on one device reduces the waiting time between production links, makes the production process more compact and efficient, and the integration of processes also reduces the floor area of the equipment.

[0021] In one embodiment, please refer to Figure 2 and Figure 3As a specific implementation of the stator housing assembly machine provided in the embodiment of the present application, the rotating disc 120 has a rotating mounting hole 121, and a rotating mounting column is provided at the bottom of the base 130, and the base 130 is rotatably mounted on the rotating disc 120 through the rotating mounting column.

[0022] During the assembly process of the stator assembly 20 and the conductive housing 10, different processes may have specific requirements for the installation angle of the conductive housing 10. Based on this, the driving member can drive the rotating installation column to rotate, and then the base 130 can quickly and accurately adjust the installation angle, thereby ensuring the consistency and stability of the assembly and improving the overall quality of the product.

[0023] Specifically, when the angle adjustment is completed, or when there is no need to adjust the angle, the base 130 is fixedly mounted on the rotating disk 120 through structures such as positioning pins or sealing rings to prevent the base 130 and the conductive housing 10 from shaking.

[0024] In one embodiment, see Figure 2 and Figure 3 As a specific implementation of the stator housing assembly machine provided in an embodiment of the present application, the side surface of the base 130 includes a first arc surface 131 and a first reference plane 132, and the opposite sides of the first reference plane 132 are respectively connected to the first arc surface 131, and the first reference plane 132 is used for the angular positioning of the base 130 on the rotating disk 120.

[0025] Based on this, the first reference plane 132 provides a clear and stable reference plane. Compared with irregular shapes such as arc surfaces, the first reference plane 132 is easier to achieve accurate angle positioning. During the assembly process, by detecting the angle relationship between the first reference plane 132 and the preset reference position, the installation angle of the base 130 and the conductive housing 10 can be accurately determined to ensure the angle accuracy of the assembly process.

[0026] In one embodiment, see Figure 2 and Figure 3 As a specific implementation of the stator housing assembly machine provided in the embodiment of the present application, a first center column 133 is provided on the top of the base 130. The first center column 133 is used to be embedded in the center hole of the conductive housing 10, and can provide a precise center axis positioning for the conductive housing 10, avoiding assembly errors caused by the axis deviation of the conductive housing 10. Through the center positioning function of the first center column 133, it can be ensured that the conductive housing 10 has a high coaxiality with the subsequently pressed stator assembly 20. During the press-fitting process, the first center column 133 can ensure that the conductive housing 10 and the stator assembly 20 are pressed in the correct position, making the interference fit between the two more stable and uniform.

[0027] In one embodiment, refer to Figure 2 and Figure 3 As a specific implementation manner of the stator housing assembly machine provided in the embodiments of the present application, the base 130 includes a base body 134 and a first anti-rotation member 135. The base body 134 is installed on the rotating disk 120. The base body 134 is used to place the conductive housing 10. The first anti-rotation member 135 is installed on the top of the base body 134. The first anti-rotation member 135 is located on the circumferential side of the conductive housing 10. The first anti-rotation member 135 is provided with an anti-rotation positioning post 136, and the anti-rotation positioning post 136 is embedded in the mounting hole 12 of the conductive housing 10.

[0028] In one embodiment, refer to Figure 1 As a specific implementation manner of the stator housing assembly machine provided in the embodiments of the present application, the conductive housing 10 can be placed on the base 130 manually, or the conductive housing 10 can also be placed on the base 130 by using a manipulator. There is no unique limitation here.

[0029] In one embodiment, refer to Figure 1 As a specific implementation manner of the stator housing assembly machine provided in the embodiments of the present application, the stator assembly 20 can be placed on the press-fitting mechanism 300 manually, or the stator assembly 20 can also be placed on the press-fitting mechanism 300 by using a manipulator. There is no unique limitation here.

[0030] In one embodiment, refer to Figure 2 As a specific implementation manner of the stator housing assembly machine provided in the embodiments of the present application, the workbench 100 further includes a disk driving member 140. The disk driving member 140 is installed below the base 110. The disk driving member 140 is connected to the rotating disk 120 and is used to drive the rotating disk 120 to rotate around the vertical direction. Among them, the disk driving member 140 is installed below the base 110, which does not occupy the upper operation space of the base 110, provides more moving space for a plurality of bases 130, high-frequency heating mechanisms 200, press-fitting mechanisms 300, and detection mechanisms 400, and facilitates operations such as placing and assembling the conductive housing 10, improving the space utilization rate of the workbench 100.

[0031] In one embodiment, refer to Figure 2 As a specific implementation manner of the stator housing assembly machine provided in the embodiments of the present application, the workbench 100 further includes a camera 150. The camera 150 is located below the outer edge of the rotating disk 120, avoiding the problem of missed quality inspection caused by monitoring blind spots. The camera 150 is fixedly arranged relative to the base 110. The camera 150 is used to detect the operation conditions of the current high-frequency heating mechanism 200, press-fitting mechanism 300, or detection mechanism 400.

[0032] For example, when the camera 150 disposed opposite to the high-frequency heating mechanism 200 detects that the base 130 is in place, it sends a stop rotation signal to the rotating disk 120, so that the high-frequency heating mechanism 200 can perform a heating and diameter-expanding operation on the conductive housing 10 of the current base 130; when the camera 150 disposed opposite to the high-frequency heating mechanism 200 detects that the diameter-expanding operation is completed, it sends a release rotation signal to the rotating disk 120, so that the rotating disk 120 rotates to achieve continuous operation.

[0033] For example, when the camera 150 disposed opposite to the press-fitting mechanism 300 detects that the base 130 is in place, it sends a stop rotation signal to the rotating disk 120, so that the press-fitting mechanism 300 can press-fit the stator assembly 20 into the conductive housing 10 of the current base 130; when the camera 150 disposed opposite to the press-fitting mechanism 300 detects that the press-fitting operation is completed, it sends a release rotation signal to the rotating disk 120, so that the rotating disk 120 rotates to achieve continuous operation.

[0034] Again, for example, when the camera 150 disposed opposite to the detection mechanism 400 detects that the base 130 is in place, it sends a stop rotation signal to the rotating disk 120, so that the detection mechanism 400 can perform a detection operation; when the camera 150 disposed opposite to the detection mechanism 400 detects that the detection operation is completed, it sends a release rotation signal to the rotating disk 120, so that the rotating disk 120 rotates to achieve continuous operation.

[0035] Specifically, the high-frequency heating mechanism 200, the press-fitting mechanism 300, and the detection mechanism 400 respectively correspond to one camera 150.

[0036] Specifically, the disk drive member 140 drives the rotating disk 120 to rotate a preset angle at a preset time interval.

[0037] In one embodiment, please refer to Figure 2 , as a specific implementation manner of the stator housing assembly machine provided in the embodiment of the present application, the workbench 100 further includes an infrared sensor 160, and the infrared sensor 160 is fixedly installed on the base 110. The number of infrared sensors 160 can be multiple, and at least one infrared sensor 160 is used to detect whether the conductive housing 10 is loaded. When a conductive housing 10 enters its detection range, the infrared sensor 160 will immediately detect a change in the signal and transmit the signal to the control system, realizing the automatic start of the production process and improving the production efficiency. When there is no loading, the infrared sensor 160 will send a no-material signal to the control system, and the control system will prevent the subsequent equipment from starting, avoiding the idling or unnecessary operation of the equipment without materials.

[0038] Specifically, the number of infrared sensors 160 is two. One infrared sensor 160 is used to detect whether the conductive housing 10 is loaded, and the other infrared sensor 160 is used to detect whether the assembled conductive housing 10 and the stator assembly 20 are unloaded. When the unloading is not completed, a new round of loading and assembly operations will not be started, preventing conflicts and chaos between processes.

[0039] In one embodiment, please refer to Figure 1 , as a specific implementation manner of the stator housing assembly machine provided by the embodiment of the present application, the stator housing assembly machine further includes a dust suction mechanism 500. The dust suction mechanism 500 is located beside the rotating disc 120. The dust suction mechanism 500 is located upstream of the high-frequency heating mechanism 200. The dust suction mechanism 500 is used to perform dust suction operations on the conductive housing 10 located on the base 130 that passes by.

[0040] Among them, if there are impurities such as dust and oil stains on the surface of the conductive housing 10, during the high-frequency heating process, these impurities may absorb part of the high-frequency energy, resulting in uneven local heating of the conductive housing 10. The dust removal mechanism can effectively remove impurities, ensuring that the energy of the high-frequency coil 230 acts more concentratedly on the conductive housing 10, enabling the conductive housing 10 to be evenly heated, improving the heating efficiency, and shortening the heating time. In addition, if there are impurities on the surface of the conductive housing 10, during the press-fitting process, these impurities will be squeezed between the conductive housing 10 and the stator assembly 20, resulting in gaps or unevenness in the interference fit between the two, affecting the tightness and stability of the assembly.

[0041] In one embodiment, please refer to Figure 4 and Figure 5 , as a specific implementation manner of the stator housing assembly machine provided by the embodiment of the present application, the press-fitting mechanism 300 includes a press-fitting driving member 310 and a clamping assembly 320. The press-fitting driving member 310 is connected to the clamping assembly 320. The press-fitting driving member 310 is used to drive the clamping assembly 320 to perform lifting movements. The clamping assembly 320 has a clamping sleeve 321 and a second central column 322 arranged coaxially. The clamping sleeve 321 is used to sleeve the top end of the stator winding 21 of the stator assembly 20, and the second central column 322 is used to abut against the inner side of the stator core 22 of the stator assembly 20.

[0042] Based on this, in the first aspect, the coaxially arranged clamping sleeve 321 and the second central column 322 can respectively clamp the top end of the stator winding 21 and the inner side of the stator core 22, keeping the two coaxial during the assembly process, and reducing problems such as motor vibration, noise, and reduced efficiency caused by coaxiality deviation; in the second aspect, the clamping sleeve 321 sleeves the top end of the stator winding 21, and the second central column 322 abuts against the inner side of the stator core 22. This internal and external clamping method can precisely control the axial and radial positions of the stator assembly 20, ensuring the assembly accuracy of the stator assembly 20 and the conductive motor housing 10, and avoiding assembly difficulties or component damage caused by assembly position deviation; in the third aspect, the clamping sleeve 321 and the second central column 322 can be evenly distributed around the stator assembly 20, providing a uniform clamping force for the stator core 22 and the stator winding 21.

[0043] Specifically, the materials of the clamping sleeve 321 and the second central column 322 are carbon fiber composite materials and titanium alloy, thereby reducing the coefficient of thermal expansion and avoiding dimensional expansion due to the influence of the conductive motor housing 10 with a higher temperature, and reducing the fitting degree with the stator assembly 20.

[0044] Specifically, in combination with Figure 6 and Figure 7 , the lower end of the second central column 322 protrudes from the lower end of the clamping sleeve 321, so that the second central column 322 can more deeply abut against the inner side of the stator core 22. During the press-fitting process, the second central column 322 contacts the stator assembly 20 prior to the clamping sleeve 321, and its protruding part plays a guiding role.

[0045] Specifically, in combination with Figure 6 and Figure 7 , the length by which the second central column 322 protrudes from the lower end of the clamping sleeve 321 is 0.8 to 1.8 times the height of the clamping sleeve 321, ensuring that the second central column 322 has sufficient contact area with the inner side of the stator core 22, providing more stable support and clamping force, and preventing uneven magnetic field distribution of the motor caused by deformation of the stator assembly 20. If the protruding length of the second central column 322 is too short, it cannot fully abut against the inner side of the stator core 22, resulting in uneven force during the press-fitting of the stator assembly 20; if the protruding length of the second central column 322 is too long, when the second central column 322 abuts against the bottom of the conductive motor housing 10, the area where the clamping sleeve 321 sleeves the stator winding 21 is small, and the clamping force on the stator winding 21 is small.

[0046] Specifically, please refer to Figure 6 and Figure 7 , a positioning piece 3211 is provided at the lower end of the clamping sleeve 321. The positioning piece 3211 is used to be embedded in the gap between two adjacent stator cores 22, thereby providing accurate axial positioning for the stator assembly 20 and preventing relative rotation between the clamping assembly 320 and the stator assembly 20.

[0047] In one embodiment, refer to Figure 6 and Figure 7 , as a specific implementation manner of the stator housing assembly machine provided in the embodiments of the present application, the second central column 322 has a cavity 323, the side wall of the second central column 322 has a plurality of through holes 324, the plurality of through holes 324 communicate with the cavity 323, the clamping assembly 320 further includes a diameter-changing driving member 325, a diameter-changing driving shaft 326 and a plurality of radial blocks 327. Each radial block 327 is movably installed in a through hole 324. The diameter-changing driving member 325 is connected to the diameter-changing driving shaft 326, and the diameter-changing driving member 325 drives the diameter-changing driving shaft 326 to move up and down in the cavity 323; the diameter-changing driving shaft 326 has a diameter-changing section 3261, the outer diameter of the diameter-changing section 3261 gradually increases or gradually decreases in the vertical direction, and the diameter-changing section 3261 abuts against the plurality of radial blocks 327.

[0048] When the diameter-changing driving shaft 326 moves up and down under the drive of the diameter-changing driving member 325, the abutting position of the radial block 327 and the diameter-changing section 3261 will change, so that the radial position of the radial block 327 changes, adapting to stator assemblies 20 with different inner diameters. For example, when the outer diameter of the diameter-changing section 3261 gradually increases downward in the vertical direction, when the diameter-changing driving shaft 326 rises, the radial block 327 is extruded outwards to realize the clamping of stator cores 22 of different sizes; after the press-fitting is completed, the diameter-changing driving shaft 326 descends, and the radial block 327 retracts inwards and separates from the stator core 22. The radial movement of the radial block 327 is realized by the up and down movement of the diameter-changing driving shaft 326, which belongs to a flexible clamping method and avoids excessive rigid extrusion on the inner side of the stator core 22.

[0049] In one embodiment, refer to Figure 6 and Figure 7 , as a specific implementation manner of the stator housing assembly machine provided in the embodiments of the present application, the clamping assembly 320 further includes a first limiting column 329. The first limiting column 329 is located outside the clamping sleeve 321. The lower end of the first limiting column 329 protrudes from the lower end of the second central column 322. The lower end of the first limiting column 329 is used to abut against the base 130 to prevent the end of the second central column 322 from being pressed and reduce the associated damage of the clamping sleeve 321. After the first limiting column 329 abuts against the base 130, it provides a clear termination position for the press-fitting process and avoids deformation of the stator assembly 20 caused by over-press-fitting.

[0050] Specifically, refer to Figure 6 and Figure 7, if the protruding length of the first limiting post 329 is too long, during the press-fitting process, before the second central post 322 reaches the ideal press-fitting position, the first limiting post 329 has already abutted against the base 130, affecting the press-fitting height; if the protruding length of the first limiting post 329 is too short, the second central post 322 will abut against the bottom of the conductive motor housing 10 and bear the pressure. The length by which the first limiting post 329 protrudes from the second central post 322 is 0.5 times to 1.2 times the height of the clamping sleeve 321. When the press-fitting is almost finished, it can stably abut against the base 130, buffer the press-fitting force, and avoid damage to the clamping sleeve 321 and its connecting components caused by excessive instantaneous impact force; moreover, the protruding length of the first limiting post 329 enables the stator assembly 20 to accurately reach the predetermined height position.

[0051] In one embodiment, please refer to Figure 6 and Figure 7 , the clamping assembly 320 further includes a clamping seat 328, and both the clamping sleeve 321 and the first limiting post 329 are installed on the clamping seat 328. The clamping seat 328 is fixedly sleeved on the second central post 322. The second central post 322 is sleeved with a variable-diameter drive shaft 326 through an axial bearing, so that the variable-diameter drive shaft 326 can move relative to the second central post 322, and the second central post 322 and the clamping sleeve 321 are lifted and lowered synchronously. The variable-diameter driving member 325 and the second central post 322 are both fixedly installed on the press-fitting driving member 310.

[0052] In one embodiment, in combination with Figure 4 , the press-fitting mechanism 300 further includes a first cooling pipe 370. After the clamping assembly 320 finishes press-fitting and separates from the stator assembly 20, the first cooling pipe 370 is used to cool the conductive motor housing 10, so that the conductive motor housing 10 can quickly recover its dimensions and have an interference fit with the stator assembly 20.

[0053] In one embodiment, please refer to Figure 8 , as a specific implementation manner of the stator housing assembly machine provided by the embodiments of the present application, the press-fitting mechanism 300 further includes a press-fitting bracket 330, and the press-fitting driving member 310 is installed on the press-fitting bracket 330.

[0054] In one embodiment, please refer to Figure 8, as a specific implementation of the stator housing assembly machine provided by the embodiments of the present application, the press-fitting mechanism 300 further includes a press-fitting bracket 330 and a first rotary driving member 340. The first rotary driving member 340 is installed on the press-fitting bracket 330 and is located below the rotating disk 120. The first rotary driving member 340 is used to drive the base 130 to rotate, thereby adjusting the press-fitting angle of the conductive housing 10 and improving the quality and accuracy of the press-fitting. The first rotary driving member 340 is installed on the press-fitting bracket 330 and is located below the rotating disk 120. This layout makes full use of the vertical space of the equipment and avoids occupying a large amount of additional horizontal space around the equipment.

[0055] In one embodiment, please refer to Figure 8 , as a specific implementation of the stator housing assembly machine provided by the embodiments of the present application, the press-fitting mechanism 300 further includes a first horizontal driving member 350 and a second anti-rotation member 360. The second anti-rotation member 360 has a first anti-rotation notch 361. The first horizontal driving member 350 is installed on the press-fitting bracket 330. After the angle adjustment is completed, the first horizontal driving member 350 drives the second anti-rotation member 360 to move horizontally, so that the first anti-rotation notch 361 fixedly sleeved on the output shaft of the first rotary driving member 340, and the rotation of the output shaft is physically restricted, avoiding the press-fitting angle deviation caused by the rotation of the output shaft and ensuring the accuracy of the press-fitting process.

[0056] Specifically, the press-fitting bracket 330 is provided with a guiding member 380, and the second anti-rotation member 360 is linearly slidably installed on the guiding member 380.

[0057] Specifically, the second anti-rotation member 360 has elasticity. For example, the second anti-rotation member 360 is a rubber anti-rotation member. In practical applications, the opposite side walls of the first anti-rotation notch 361 can form a firm elastic clamping on the output shaft of the first rotary driving member 340 by virtue of the elastic characteristics of the second anti-rotation member 360. When vibrations or impacts occur during the press-fitting process, the second anti-rotation member 360 will undergo elastic deformation, causing the clamping space of the first anti-rotation notch 361 to contract, thereby significantly enhancing the pressing force on the output shaft, effectively avoiding loosening, and greatly improving the anti-vibration performance of the base 130 under complex working conditions. In addition, the second anti-rotation member 360 can absorb and dissipate the vibration energy through small deformations, thereby reducing the possibility of resonance between itself and the base 130 and ensuring the stability and reliability of the entire system operation.

[0058] In one embodiment, please refer to Figure 9, as a specific implementation of the stator housing assembly machine provided in the embodiments of the present application, the high-frequency heating mechanism 200 includes a heating bracket 210, a heating driving member 220, and a high-frequency coil 230. The heating driving member 220 is installed on the heating bracket 210, and the heating driving member 220 drives the high-frequency coil 230 to perform a lifting motion. The high-frequency coil 230 descends into the conductive housing 10 and is connected to high-frequency alternating current, causing the conductive housing 10 to heat up and expand in diameter due to electromagnetic induction.

[0059] Specifically, the high-frequency heating mechanism 200 includes a second rotary driving member 240. The second rotary driving member 240 is installed on the heating bracket 210. The second rotary driving member 240 is located below the rotating disk 120, and the second rotary driving member 240 is used to drive the base 130 to rotate, thereby adjusting the heating angle of the conductive housing 10.

[0060] Optionally, the high-frequency heating mechanism 200 includes a second horizontal driving member 250 and a third anti-rotation member 260. The third anti-rotation member 260 has a second anti-rotation notch 261. The second horizontal driving member 250 is installed on the heating bracket 210. After the angle adjustment is completed, the second horizontal driving member 250 drives the third anti-rotation member 260 to perform a horizontal motion, so that the second anti-rotation notch 261 fixedly sleeved on the output shaft of the second rotary driving member 240 to avoid heating angle deviation caused by the rotation of the output shaft.

[0061] In one embodiment, please refer to Figure 1 , as a specific implementation of the stator housing assembly machine provided in the embodiments of the present application, the stator housing assembly machine further includes a marking mechanism 600. The marking mechanism 600 is located beside the rotating disk 120. The marking mechanism 600 is located downstream of the press-fitting mechanism 300. The marking mechanism 600 is used to perform marking operations on the conductive housing 10 located on the base 130 passing by, reducing the pause and waiting time in the production process and improving the production efficiency.

[0062] In one embodiment, please refer to Figure 10 , as a specific implementation of the stator housing assembly machine provided in the embodiments of the present application, the detection mechanism 400 includes a detection bracket 410, a detection driving member 420, and a displacement sensor 430. The detection driving member 420 is installed on the detection bracket 410. The detection driving member 420 is used to drive the displacement sensor 430 to perform a lifting motion. The displacement sensor 430 is used to detect the installation height of the stator assembly 20 in the conductive housing 10. The detection driving member 420 can quickly and accurately drive the displacement sensor 430 to perform a lifting motion to realize the automatic detection of the installation height.

[0063] Specifically, please refer to Figure 10 and Figure 11, an elastic detection head 431 is provided at the end of the displacement sensor 430 to prevent damage to the displacement sensor 430 and the stator assembly 20. At the same time, there may be microscopic unevenness or macroscopic shape deviations on the surface of the stator assembly 20. When the elastic detection head 431 contacts the surface of the stator assembly 20, it can undergo elastic deformation according to the undulation of the surface, so that the elastic detection head 431 maintains a good contact state with the surface of the stator assembly 20.

[0064] Specifically, the number of displacement sensors 430 is at least two, and all displacement sensors 430 are spaced apart around the vertical direction, avoiding one-sidedness caused by single-position measurement and improving the credibility of the detection results. For example, when the stator assembly 20 is slightly tilted during installation, the installation height deviation can be more comprehensively understood through measurement data at multiple positions.

[0065] Optionally, two displacement sensors 430 are located on the radially opposite sides of the stator assembly 20, so that the inner diameter of the conductive motor housing 10 can be detected by the distance between the two displacement sensors 430.

[0066] Furthermore, the detection mechanism 400 further includes a detection auxiliary frame 440. The detection auxiliary frame 440 is installed at the output end of the detection driving member 420, and at least two displacement sensors 430 are installed on the detection auxiliary frame 440 to achieve synchronous lifting, ensure position synchronization, and mutually verify the detection results.

[0067] Specifically, the detection mechanism 400 further includes a reference plate 450. The reference plate 450 is installed below the detection auxiliary frame 440, and the reference plate 450 fits against the top surface of the conductive motor housing 10 as the detection auxiliary frame 440 descends. The reference plate 450 evenly transmits the force to each part of the conductive motor housing 10, which is equivalent to calibrating the top surface of the conductive motor housing 10, ensuring measurement consistency and improving the detection accuracy of the displacement sensor 430.

[0068] Specifically, the reference plate 450 is installed on the detection auxiliary frame 440 through an elastic auxiliary member 460. The elastic auxiliary member 460 can automatically adjust the position and attitude of the reference plate 450 through its own elastic deformation, so that it is as close as possible to the correct measurement reference position.

[0069] Specifically, please refer to Figure 10 and Figure 11, the detection mechanism 400 further includes a detection controller 470 and a vision sensor 480. The vision sensor 480 is installed on the detection auxiliary frame 440 and is responsible for taking detection images. The detection controller 470 will then perform image detection and processing on these collected detection images. After processing, a set of radially symmetric points, namely the first detection point and the second detection point, can be determined on the stator assembly 20; at the same time, another set of radially symmetric points, namely the third detection point and the fourth detection point, can also be found on the conductive housing 10. The detection controller 470 will further calculate to obtain the midpoint of the line connecting the first detection point and the second detection point, that is, the first center point; and the midpoint of the line connecting the third detection point and the fourth detection point, that is, the second center point. By judging whether the first center point and the second center point coincide, the detection controller 470 can complete the detection of whether the stator assembly 20 and the conductive housing 10 are coaxial.

[0070] In one embodiment, in combination with Figure 1 , the stator housing assembly machine further includes a blanking station, which is located downstream of the detection mechanism 400 and is used for blanking the product, such as blanking by a robot. After blanking, the product is transported to the production line for cooling, reducing the space occupied by the rotating disk 120 and saving the moving and cooling time.

[0071] The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A stator housing assembly machine, characterized in that, The stator housing assembly machine includes: A workbench, including a base, a rotating disc, and a plurality of bases. The rotating disc is rotatably mounted on the base about the vertical direction, and the plurality of bases are circumferentially spaced and mounted on the rotating disc. The bases are used for placing the conductive housing. A high-frequency heating mechanism, located beside the rotating disc, for movably embedding a high-frequency coil into the conductive housing. A press-fitting mechanism, located beside the rotating disc and downstream of the high-frequency heating mechanism, for clamping the stator assembly and press-fitting the stator assembly into the conductive housing. An inspection mechanism, located beside the rotating disc and downstream of the press-fitting mechanism, for inspecting the assembly quality of the conductive housing and the stator assembly.

2. The stator housing assembly machine according to claim 1, characterized in that: The rotating disc has a rotating mounting hole, and the bottom of the base is provided with a rotating mounting post. The base is rotatably mounted on the rotating disc through the rotating mounting post. And / or, the side surface of the base includes a first arc surface and a first reference plane. The two opposite sides of the first reference plane are respectively connected to the first arc surface. The first reference plane is used for angular positioning of the base on the rotating disc.

3. The stator housing assembly machine according to claim 1, wherein: The top of the base is provided with a first central column, and the first central column is used for being embedded in the central hole of the conductive housing. And / or, the base includes a seat body and a first anti-rotation member. The seat body is mounted on the rotating disc and is used for placing the conductive housing. The first anti-rotation member is mounted on the top of the seat body and is located on the circumferential side of the conductive housing. The first anti-rotation member is provided with an anti-rotation positioning post, and the anti-rotation positioning post is embedded in the mounting hole of the conductive housing.

4. The stator housing assembly machine according to claim 1, wherein: The press-fitting mechanism includes a press-fitting driving member and a clamping assembly. The press-fitting driving member is connected to the clamping assembly. The press-fitting driving member is used for driving the clamping assembly to perform a lifting motion. The clamping assembly has a coaxially arranged clamping sleeve and a second central column. The lower end of the second central column protrudes from the lower end of the clamping sleeve. The clamping sleeve is used for sleeving the top end of the stator winding of the stator assembly, and the second central column is used for abutting against the inner side of the stator core of the stator assembly.

5. The stator housing assembly machine according to claim 4, wherein: The second central column has a cavity, and the side wall of the second central column has a plurality of through holes. The through holes are communicated with the cavity. The clamping assembly further includes a diameter-changing driving member, a diameter-changing driving shaft, and a plurality of radial blocks. Each radial block is movably mounted in one of the through holes. The diameter-changing driving member is connected to the diameter-changing driving shaft. The diameter-changing driving member drives the diameter-changing driving shaft to perform a lifting motion in the cavity. The diameter-changing driving shaft has a diameter-changing section, and the outer diameter of the diameter-changing section gradually increases or gradually decreases in the vertical direction. The diameter-changing section abuts against the plurality of radial blocks. And / or, the clamping assembly further includes a first limiting column. The first limiting column is located outside the clamping sleeve. The lower end of the first limiting column protrudes from the lower end of the second central column. The lower end of the first limiting column is used for abutting against the base.

6. The stator housing assembly machine according to claim 4, wherein: The press-fitting mechanism further includes a press-fitting support and a first rotation driving member. The first rotation driving member is installed on the press-fitting support and is located below the rotating disk. The first rotation driving member is used to drive the base to rotate.

7. The stator housing assembly machine according to claim 6, characterized in that: The press-fitting mechanism further includes a first horizontal driving member and a second anti-rotation member. The second anti-rotation member has a first anti-rotation notch. The first horizontal driving member is installed on the press-fitting support. The first horizontal driving member drives the second anti-rotation member to perform a horizontal movement so that the first anti-rotation notch fixedly sleeved on the output shaft of the first rotation driving member.

8. The stator housing assembly machine according to claim 1, wherein: The detection mechanism includes a detection support, a detection driving member, and a displacement sensor. The detection driving member is installed on the detection support. The detection driving member is used to drive the displacement sensor to perform a lifting movement. The displacement sensor is used to detect the installation height of the stator assembly in the conductive motor housing.

9. The stator housing assembly machine according to claim 8, characterized in that: The detection mechanism further includes a detection auxiliary frame. The detection auxiliary frame is installed at the output end of the detection driving member. The displacement sensor is installed on the detection auxiliary frame. The detection mechanism further includes a reference plate. The reference plate is installed below the detection auxiliary frame. The reference plate fits against the top surface of the conductive motor housing as the detection auxiliary frame descends. The reference plate is installed on the detection auxiliary frame through an elastic auxiliary member. An elastic detection head is provided at the end of the displacement sensor. The number of the displacement sensors is at least two, and all the displacement sensors are spaced apart around the vertical direction.

10. The stator housing assembly machine according to any one of claims 1 to 9, characterized in that: The stator housing assembly machine further includes a dust suction mechanism. The dust suction mechanism is located beside the rotating disk and upstream of the high-frequency heating mechanism. The dust suction mechanism is used to perform a dust suction operation on the conductive motor housing located on the base passing by. And / or, the stator housing assembly machine further includes a marking mechanism. The marking mechanism is located beside the rotating disk and downstream of the press-fitting mechanism. The marking mechanism is used to perform a marking operation on the conductive motor housing located on the base passing by.

Images