Stator casing assembly machine

Abstract

The present application provides a stator housing assembly machine, including a workbench, a high-frequency heating mechanism, a pressing mechanism, and a detection mechanism. The workbench includes a base, a rotating disc, and multiple bases. The rotating disc can be rotatably mounted on the base in a vertical direction. The multiple bases are installed on the rotating disc at intervals along the circumference of the rotating disc. The base is used to place a conductive housing. The high-frequency heating mechanism is located next to the rotating disc and is used to movably embed the high-frequency coil into the conductive housing. The pressing mechanism is located next to the rotating disc, downstream of the high-frequency heating mechanism, and is used to clamp the stator assembly and press the stator assembly into the conductive housing. The detection mechanism is located next to the rotating disc, downstream of the pressing mechanism, and is used to detect the assembly quality of the conductive housing and stator assembly. The equipment realizes the automation of the entire process from conductive housing placement, heating, stator assembly pressing to quality inspection, integrating multiple processes into one device, making the production process 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, shrink-fit is a common method for assembling the stator core and the casing. Shrink-fitting involves first heating the casing so that its inner diameter increases after heating, forming a clearance fit with the stator core. Subsequently, the casing temperature drops, and the clearance fit becomes an interference fit, allowing the casing to be firmly fitted onto the outer wall of the stator core.

[0003] According to Chinese patent CN113346686A, the existing process for shrink-fitting a stator core and a housing includes: first, manually placing the housing in the coil to heat it; second, manually operating a lifting device to lift the housing out of the coil; third, manually lifting the stator core; and fourth, manually operating a press jig to press-fit the stator core into the housing. Therefore, the existing shrink-fitting process for stators and housings suffers from a low degree of 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: the low degree of automation in the assembly of the stator and the housing.

[0005] To achieve the above objectives, the technical solutions adopted in the embodiments of the present application are:

[0006] A stator housing assembly machine is provided, comprising:

[0007] A workbench comprises a base, a rotating disc and a plurality of bases, wherein the rotating disc is mounted on the base so as to be rotatable in a vertical direction, the 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;

[0008] A high-frequency heating mechanism, located beside the rotating disk, is used to movably embed the high-frequency coil into the conductive housing;

[0009] 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;

[0010] 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.

[0011] 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, and as the base rotates in the vertical direction 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 expand; the conductive housing continues to rotate with the base to the press-fitting mechanism, and the press-fitting mechanism clamps the stator assembly and presses it into the conductive housing; since the inner diameter of the conductive housing is expanded, press-fitting is labor-saving, and when the temperature of the conductive housing returns to room temperature, the inner diameter of the conductive housing is reduced, and it has an interference fit with the stator assembly, and the assembly is firm; the conductive housing continues to rotate with the base to the detection mechanism, and the detection mechanism detects the assembly quality of the conductive housing and the stator assembly, promptly discovers and eliminates unqualified products, and effectively improves the overall quality and reliability of the product. The stator housing assembly machine provided in the present application realizes the automation of the entire process from conductive housing placement, heating, stator assembly press-fitting to quality inspection, which greatly reduces the manual operation links, reduces labor intensity, reduces labor costs and errors caused by human factors, integrates multiple processes into one device, reduces the waiting time between production links, makes the production process more compact and efficient, and the process integration also reduces the equipment's footprint. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or exemplary technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0013] Figure 1 A schematic structural diagram of a stator housing assembly machine provided in an embodiment of the present application;

[0014] Figure 2 A schematic diagram of the working table of the stator housing assembly machine provided in an embodiment of the present application;

[0015] Figure 3 An exploded view of the installation of the base provided in an embodiment of the present application;

[0016] Figure 4 A schematic structural diagram of a press-fitting mechanism of a stator housing assembly machine provided in an embodiment of the present application;

[0017] Figure 5 A schematic diagram of a portion of the structure of the press-fitting mechanism provided in an embodiment of the present application;

[0018] Figure 6 for Figure 5 Exploded view of;

[0019] Figure 7 for Figure 5 Sectional view along line AA;

[0020] Figure 8 A schematic diagram of a portion of the structure of the press-fitting mechanism provided in an embodiment of the present application;

[0021] Figure 9 A schematic structural diagram of a high-frequency heating mechanism of a stator housing assembly machine provided in an embodiment of the present application;

[0022] Figure 10 A schematic structural diagram of a detection mechanism of a stator housing assembly machine provided in an embodiment of the present application;

[0023] Figure 11 A schematic diagram of a portion of the structure of the detection mechanism provided in an embodiment of the present application.

[0024] Among them, the main marks of the drawings in the figure are:

[0025] 10. Conductive housing; 12. Mounting hole;

[0026] 20. Stator assembly; 21. Stator winding; 22. Stator core;

[0027] 100, workbench; 110, base; 120, rotating disk; 121, rotating mounting hole; 130, base; 131, first arc surface; 132, first reference plane; 133, first center column; 134, base; 135, first anti-rotation member; 136, anti-rotation positioning column; 140, disk drive member; 150, camera; 160, infrared sensor;

[0028] 200, high-frequency heating mechanism; 210, heating bracket; 220, heating driver; 230, high-frequency coil; 240, second rotary driver; 250, second horizontal driver; 260, third anti-rotation member; 261, second anti-rotation notch;

[0029] 300, press-fitting mechanism; 310, press-fitting drive member; 320, clamping assembly; 321, clamping sleeve; 3211, positioning piece; 322, second center column; 323, cavity; 324, through hole; 325, variable diameter drive member; 326, variable diameter drive shaft; 3261, variable diameter section; 327, radial block; 328, clamping seat; 329, first limiting column; 330, press-fitting bracket; 340, first rotary drive member; 350, first horizontal drive member; 360, second anti-rotation member; 361, first anti-rotation notch; 370, first cooling pipe; 380, guide member;

[0030] 400, detection mechanism; 410, detection bracket; 420, detection drive member; 430, displacement sensor; 431, elastic detection head; 440, detection auxiliary frame; 450, reference plate; 460, elastic auxiliary member; 470, detection controller; 480, visual sensor;

[0031] 500, dust collection mechanism;

[0032] 600. Marking organization. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0034] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may 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 may be directly connected to the other element or indirectly connected to the other element.

[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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.

[0036] In the description of this application, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0038] Reference throughout this specification 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 present application. Thus, when the phrases "in one embodiment" or "in some embodiments" appear in various places throughout this specification, not all references are to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0039] In the traditional hot-installation process, there are many manual operations, such as manually placing the casing in the coil for heating and manually hoisting the stator core 22, etc., which have problems such as low automation, scattered processes and low assembly efficiency.

[0040] See also Figure 1 The stator housing assembly machine provided in an embodiment of the present application will now be described. The stator housing assembly machine includes a workbench 100, a high-frequency heating mechanism 200, a press-fitting mechanism 300, and a detection mechanism 400. The workbench 100 includes a base 110, a rotating disk 120, and a plurality of bases 130. The rotating disk 120 is mounted on the base 110 so as to be rotatable in a vertical direction. The plurality of bases 130 are mounted on the rotating disk 120 at intervals along the circumference of the rotating disk 120. The bases 130 are used to place the conductive housing 10.

[0041] The high-frequency heating mechanism 200 is located adjacent to the rotating disk 120 and is used to flexibly embed the high-frequency coil 230 into the conductive housing 10. The press-fitting mechanism 300 is located adjacent to the rotating disk 120 and downstream of the high-frequency heating mechanism 200. It is used to clamp the stator assembly 20 and press-fit it into the conductive housing 10. The inspection mechanism 400 is located adjacent to the rotating disk 120 and downstream of the press-fitting mechanism 300 and is used to inspect the assembly quality of the conductive housing 10 and stator assembly 20.

[0042] The conductive housing 10 is placed on the base 130. As the base 130 rotates vertically through the high-frequency heating mechanism 200, the high-frequency coil 230 heats the conductive housing 10, causing it to expand and increase its inner diameter. The conductive housing 10 continues to rotate with the base 130 to the press-fitting mechanism 300, which clamps the stator assembly 20 and presses it into the conductive housing 10. Due to the expanded inner diameter of the conductive housing 10, press-fitting is labor-saving. When the temperature of the conductive housing 10 returns to room temperature, the inner diameter of the conductive housing 10 decreases, forming an interference fit with the stator assembly 20, ensuring a secure assembly. The conductive housing 10 continues to rotate with the base 130 to the inspection mechanism 400, which inspects the assembly quality of the conductive housing 10 and the stator assembly 20, promptly identifying and rejecting unqualified products, effectively improving the overall quality and reliability of the product.

[0043] The stator housing assembly machine provided in the present application realizes the automation of the entire process from the placement and heating of the conductive housing 10, the press-fitting of the stator assembly 20 to the quality inspection, which greatly reduces the manual operation links, reduces the labor intensity, reduces the labor cost and the errors caused by human factors, integrates multiple processes into one device, reduces the waiting time between production links, makes the production process more compact and efficient, and the process integration also reduces the equipment's footprint.

[0044] 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 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 can be rotatably mounted on the rotating disc 120 through the rotating mounting column.

[0045] During the assembly of the stator assembly 20 and the conductive housing 10, different steps may require specific installation angles for the conductive housing 10. To address this, the driver can drive the rotatable mounting post to rotate, allowing the base 130 to quickly and accurately adjust the installation angle, thereby ensuring assembly consistency and stability and improving overall product quality.

[0046] 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.

[0047] 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. The opposite sides of the first reference plane 132 are respectively connected to the first arc surface 131. The first reference plane 132 is used for angular positioning of the base 130 on the rotating disk 120.

[0048] Based on this, first reference plane 132 provides a clear and stable reference plane. Compared to irregular shapes such as arcs, first reference plane 132 facilitates precise angular positioning. During the assembly process, by measuring the angular relationship between first reference plane 132 and a preset reference position, the installation angle of base 130 and conductive housing 10 can be accurately determined, ensuring angular accuracy during the assembly process.

[0049] In one embodiment, see Figure 2 and Figure 3As a specific embodiment of the stator housing assembly machine provided in an 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. The center positioning function of the first center column 133 can ensure that the conductive housing 10 and the subsequently press-fitted stator assembly 20 have a high degree of coaxiality. During the press-fitting process, the first center column 133 can ensure that the conductive housing 10 and the stator assembly 20 are press-fitted in the correct position, making the interference fit between the two more stable and uniform.

[0050] In one embodiment, see Figure 2 and Figure 3 As a specific embodiment of the stator housing assembly machine provided in an embodiment of the present application, the base 130 includes a base body 134 and a first anti-rotation component 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 component 135 is installed on the top of the base body 134. The first anti-rotation component 135 is located on the circumferential side of the conductive housing 10. The first anti-rotation component 135 is provided with an anti-rotation positioning column 136, and the anti-rotation positioning column 136 is embedded in the mounting hole 12 of the conductive housing 10.

[0051] In one embodiment, see Figure 1 As a specific implementation of the stator housing assembly machine provided in an embodiment of the present application, the conductive housing 10 can be placed on the base 130 by manual loading, or the conductive housing 10 can be placed on the base 130 by a robot, which is not limited here.

[0052] In one embodiment, see Figure 1 As a specific implementation of the stator housing assembly machine provided in an embodiment of the present application, the stator assembly 20 can be placed on the press-fitting mechanism 300 by manual loading, or the stator assembly 20 can be placed on the press-fitting mechanism 300 by a robot, which is not limited here.

[0053] In one embodiment, see Figure 2As a specific embodiment of the stator housing assembly machine provided in an embodiment of the present application, the workbench 100 further includes a disc driver 140. The disc driver 140 is mounted below the base 110 and is connected to the rotating disc 120 for driving the rotating disc 120 to rotate vertically. The disc driver 140 is mounted below the base 110, eliminating the need for operating space above the base 110. This provides more room for movement for the multiple bases 130, the high-frequency heating mechanism 200, the press-fit mechanism 300, and the inspection mechanism 400, facilitating operations such as placement and assembly of the conductive housing 10 and improving space utilization of the workbench 100.

[0054] In one embodiment, see Figure 2 As a specific embodiment of the stator housing assembly machine provided in an embodiment of the present application, the workbench 100 also includes a camera 150. Camera 150 is located below the outer edge of the rotating disk 120, preventing quality inspections from being missed due to blind spots. Camera 150 is fixed relative to the base 110. Camera 150 is used to monitor the current operation of the high-frequency heating mechanism 200, the press-fitting mechanism 300, or the inspection mechanism 400.

[0055] For example, when the camera 150 arranged 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 heat and expand the conductive shell 10 of the current base 130; when the camera 150 arranged opposite to the high-frequency heating mechanism 200 detects that the expansion operation is completed, it sends a release rotation signal to the rotating disk 120, so that the rotating disk 120 can rotate to achieve continuous operation.

[0056] For example, when the camera 150 arranged opposite to the pressing mechanism 300 detects that the base 130 is in place, it sends a stop rotation signal to the rotating disk 120 so that the pressing mechanism 300 can press the stator assembly 20 into the conductive housing 10 of the current base 130; when the camera 150 arranged opposite to the pressing mechanism 300 detects that the pressing operation is completed, it sends a release rotation signal to the rotating disk 120 so that the rotating disk 120 can rotate to achieve continuous operation.

[0057] For another example, when the camera 150 arranged 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 to facilitate the detection mechanism 400 to perform the detection operation; when the camera 150 arranged 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.

[0058] Specifically, the high-frequency heating mechanism 200 , the pressing mechanism 300 , and the detection mechanism 400 each correspond to a camera 150 .

[0059] Specifically, the disk driving member 140 drives the rotating disk 120 to rotate by a preset angle at a preset time interval.

[0060] In one embodiment, see Figure 2 As a specific embodiment of the stator housing assembly machine provided in the embodiment of the present application, the workbench 100 also includes an infrared sensor 160, which is fixedly mounted 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 the change in the signal and transmit the signal to the control system, thereby realizing the automatic start-up of the production process and improving production efficiency. When there is no material loaded, 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 to avoid the equipment idling or performing unnecessary operations in the absence of materials.

[0061] Specifically, two infrared sensors 160 are used: one to detect whether the conductive housing 10 has been loaded, and the other to detect whether the assembled conductive housing 10 and stator assembly 20 has been unloaded. If unloading is not completed, a new round of loading and assembly operations will not be initiated, preventing conflicts and confusion between processes.

[0062] In one embodiment, see Figure 1 As a specific embodiment of the stator housing assembly machine provided in an embodiment of the present application, the stator housing assembly machine also includes a dust suction mechanism 500. The dust suction mechanism 500 is located next to the rotating disk 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 passing by.

[0063] If there are impurities such as dust and oil on the surface of the conductive housing 10, these impurities may absorb some of the high-frequency energy during the high-frequency heating process, resulting in uneven 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, so that the conductive housing 10 is heated evenly, improving heating efficiency and shortening heating time. In addition, if there are impurities on the surface of the conductive housing 10, these impurities will be squeezed between the conductive housing 10 and the stator assembly 20 during the press-fitting process, resulting in gaps or unevenness in the interference fit between the two, affecting the tightness and stability of the assembly.

[0064] In one embodiment, see Figure 4 and Figure 5 As a specific embodiment of the stator housing assembly machine provided in an embodiment of the present application, the press-fitting mechanism 300 includes a press-fitting drive 310 and a clamping assembly 320. The press-fitting drive 310 is connected to the clamping assembly 320. The press-fitting drive 310 is used to drive the clamping assembly 320 to perform lifting movements. The clamping assembly 320 has a coaxially arranged clamping sleeve 321 and a second center column 322. The clamping sleeve 321 is used to sleeve the top end of the stator winding 21 of the stator assembly 20, and the second center column 322 is used to abut the inner side of the stator core 22 of the stator assembly 20.

[0065] Based on this, on the one hand, the coaxially arranged clamping sleeve 321 and the second center column 322 can respectively clamp the top of the stator winding 21 and the inner side of the stator core 22, so that the two always remain coaxial during the assembly process, reducing the problems of motor vibration, noise and reduced efficiency caused by coaxiality deviation; on the other hand, the clamping sleeve 321 is sleeved on the top of the stator winding 21, and the second center column 322 abuts the inner side of the stator core 22. This internal and external clamping method can accurately control the axial and radial positions of the stator assembly 20, ensure the assembly accuracy of the stator assembly 20 and the conductive housing 10, and avoid assembly difficulties or component damage caused by assembly position deviation; on the third hand, the clamping sleeve 321 and the second center column 322 can be evenly distributed around the stator assembly 20, providing uniform clamping force for the stator core 22 and the stator winding 21.

[0066] Specifically, the materials of the clamping sleeve 321 and the second center column 322 are carbon fiber composite materials and titanium alloy, thereby reducing the thermal expansion coefficient, avoiding dimensional expansion due to the influence of the higher temperature conductive housing 10, and reducing the fit with the stator assembly 20.

[0067] Specifically, combined Figure 6 and Figure 7 The lower end of the second center post 322 protrudes beyond the lower end of the clamping sleeve 321, allowing the second center post 322 to more deeply contact the inner side of the stator core 22. During the press-fitting process, the second center post 322 contacts the stator assembly 20 before the clamping sleeve 321, and its protruding portion serves as a guide.

[0068] Specifically, combined Figure 6 and Figure 7The length of the second center post 322 protruding from the lower end of the clamping sleeve 321 is 0.8 to 1.8 times the height of the clamping sleeve 321. This ensures sufficient contact area between the second center post 322 and the inner side of the stator core 22, providing more stable support and clamping force, and preventing deformation of the stator assembly 20 that could lead to uneven magnetic field distribution in the motor. If the protruding length of the second center post 322 is too short, it will not fully contact the inner side of the stator core 22, resulting in uneven force on the stator assembly 20 during press-fitting. If the protruding length of the second center post 322 is too long, when the second center post 322 abuts the bottom of the conductive housing 10, the area of ​​the clamping sleeve 321 that contacts the stator winding 21 is small, resulting in a weak clamping force on the stator winding 21.

[0069] Specifically, see 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 the clamping assembly 320 and the stator assembly 20 from rotating relative to each other.

[0070] In one embodiment, see Figure 6 and Figure 7 As a specific embodiment of the stator housing assembly machine provided in an embodiment of the present application, the second center column 322 has a cavity 323, and the side wall of the second center column 322 has multiple through holes 324, and the multiple through holes 324 are connected to the cavity 323. The clamping assembly 320 also includes a variable diameter drive member 325, a variable diameter drive shaft 326 and multiple radial blocks 327, each radial block 327 is movably installed in a through hole 324, the variable diameter drive member 325 is connected to the variable diameter drive shaft 326, and the variable diameter drive member 325 drives the variable diameter drive shaft 326 to perform a lifting movement in the cavity 323; the variable diameter drive shaft 326 has a variable diameter section 3261, the outer diameter of the variable diameter section 3261 gradually increases or decreases along the vertical direction, and the variable diameter section 3261 abuts against the multiple radial blocks 327.

[0071] When the variable diameter drive shaft 326 is driven by the variable diameter drive member 325 to move up and down, the contact position between the radial block 327 and the variable diameter section 3261 changes, thereby changing the radial position of the radial block 327 to accommodate stator assemblies 20 with different inner diameters. For example, the outer diameter of the variable diameter section 3261 gradually increases downward in the vertical direction. As the variable diameter drive shaft 326 rises, the radial block 327 squeezes outward, clamping stator cores 22 of different sizes. After press-fitting is completed, the variable diameter drive shaft 326 descends, and the radial block 327 retracts inward and separates from the stator core 22. The radial movement of the radial block 327 is achieved by the raising and lowering of the variable diameter drive shaft 326, which is a flexible clamping method that avoids excessive rigid compression on the inner side of the stator core 22.

[0072] In one embodiment, see Figure 6 and Figure 7 As a specific embodiment of the stator housing assembly machine provided in an embodiment of the present application, the clamping assembly 320 further includes a first limiting post 329. The first limiting post 329 is located outside the clamping sleeve 321. The lower end of the first limiting post 329 protrudes beyond the lower end of the second center post 322. The lower end of the first limiting post 329 is used to abut the base 130 to prevent pressure on the end of the second center post 322 and reduce collateral damage to the clamping sleeve 321. After the first limiting post 329 abuts the base 130, it provides a clear end point for the press-fitting process, preventing deformation of the stator assembly 20 caused by excessive press-fitting.

[0073] Specifically, see Figure 6 and Figure 7 If the protruding length of the first limiting post 329 is too long, the second center post 322 will abut the base 130 before reaching the ideal press-fitting position during the press-fitting process, affecting the press-fitting height. If the protruding length of the first limiting post 329 is too short, the second center post 322 will abut the bottom of the conductive housing 10 and bear the pressure. The protruding length of the first limiting post 329 from the second center post 322 is 0.5 to 1.2 times the height of the clamping sleeve 321. When the press-fitting is nearing completion, it can abut the base 130 stably, buffering the press-fitting force and preventing damage to the clamping sleeve 321 and its connecting components caused by excessive instantaneous impact. In addition, the protruding length of the first limiting post 329 ensures that the stator assembly 20 accurately reaches the predetermined height.

[0074] In one embodiment, see Figure 6 and Figure 7 The clamping assembly 320 further includes a clamping seat 328, to which the clamping sleeve 321 and the first limiting post 329 are mounted. The clamping seat 328 is fixedly mounted on the second center post 322. The second center post 322 is connected to the variable diameter drive shaft 326 via an axial bearing, allowing the variable diameter drive shaft 326 to move relative to the second center post 322, and the second center post 322 and the clamping sleeve 321 to rise and fall synchronously. The variable diameter drive member 325 and the second center post 322 are both fixedly mounted on the press-fit drive member 310.

[0075] In one embodiment, combined Figure 4 The press-fitting mechanism 300 also includes a first cooling tube 370. After the clamping assembly 320 is press-fitted and separated from the stator assembly 20, the first cooling tube 370 is used to cool the conductive housing 10 so that the conductive housing 10 quickly recovers its size and has an interference fit with the stator assembly 20.

[0076] In one embodiment, see Figure 8As a specific implementation of the stator housing assembly machine provided in an embodiment of the present application, the press-fitting mechanism 300 further includes a press-fitting bracket 330 , and the press-fitting driving component 310 is installed on the press-fitting bracket 330 .

[0077] In one embodiment, see Figure 8 As a specific embodiment of the stator housing assembly machine provided in an embodiment of the present application, the press-fitting mechanism 300 further includes a press-fitting bracket 330 and a first rotating drive member 340. The first rotating drive member 340 is mounted on the press-fitting bracket 330 and is located below the rotating disk 120. The first rotating drive 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 precision of the press-fitting. The first rotating drive member 340 is mounted on the press-fitting bracket 330 and located below the rotating disk 120. This layout fully utilizes the vertical space of the equipment and avoids occupying a large amount of additional horizontal space around the equipment.

[0078] In one embodiment, see Figure 8 As a specific embodiment of the stator housing assembly machine provided in the embodiment of the present application, the press-fitting mechanism 300 also 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 is fixedly sleeved on the output shaft of the first rotating driving member 340. The rotation of the output shaft is physically restricted to avoid press-fitting angle deviation caused by the rotation of the output shaft, thereby ensuring the accuracy of the press-fitting process.

[0079] Specifically, the press-fit bracket 330 is provided with a guide member 380 , and the second anti-rotation member 360 is installed on the guide member 380 in a linear sliding manner.

[0080] Specifically, the second anti-rotation component 360 is elastic. For example, the second anti-rotation component 360 is a rubber anti-rotation component. In actual applications, the two side walls of the first anti-rotation notch 361 can form a stable elastic clamp on the output shaft of the first rotary drive component 340 by virtue of the elastic characteristics of the second anti-rotation component 360. When vibration or impact occurs during the press-fitting process, the second anti-rotation component 360 will undergo elastic deformation, causing the clamping space of the first anti-rotation notch 361 to shrink, thereby significantly increasing the clamping force on the output shaft, thereby effectively avoiding the loosening phenomenon and greatly improving the vibration resistance of the base 130 under complex working conditions. In addition, the second anti-rotation component 360 can absorb and dissipate vibration energy through slight deformation, thereby reducing the possibility of resonance between itself and the base 130, and ensuring the stability and reliability of the entire system operation.

[0081] In one embodiment, see Figure 9 As a specific embodiment of the stator housing assembly machine provided in an embodiment of the present application, the high-frequency heating mechanism 200 includes a heating bracket 210, a heating driver 220 and a high-frequency coil 230. The heating driver 220 is installed on the heating bracket 210. The heating driver 220 drives the high-frequency coil 230 to perform a lifting movement. The high-frequency coil 230 descends into the conductive housing 10 and is connected to high-frequency alternating current. Due to electromagnetic induction, the conductive housing 10 heats up and expands.

[0082] Specifically, the high-frequency heating mechanism 200 includes a second rotating drive member 240, which is installed on the heating bracket 210 and located below the rotating disk 120. The second rotating drive member 240 is used to drive the base 130 to rotate, thereby adjusting the heating angle of the conductive housing 10.

[0083] 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 mounted on the heating bracket 210. After the angle is adjusted, the second horizontal driving member 250 drives the third anti-rotation member 260 to move horizontally so that the second anti-rotation notch 261 is fixedly sleeved on the output shaft of the second rotary driving member 240, thereby preventing heating angle deviation caused by rotation of the output shaft.

[0084] In one embodiment, see Figure 1 As a specific implementation of the stator housing assembly machine provided in an embodiment of the present application, the stator housing assembly machine also includes a marking mechanism 600. The marking mechanism 600 is located next to the rotating disk 120 and downstream of the pressing mechanism 300. The marking mechanism 600 is used to mark the conductive housing 10 passing through the base 130, thereby reducing pauses and waiting time in the production process and improving production efficiency.

[0085] In one embodiment, see Figure 10 As a specific embodiment of the stator housing assembly machine provided in an embodiment of the present application, a detection mechanism 400 includes a detection bracket 410, a detection driver 420, and a displacement sensor 430. The detection driver 420 is mounted on the detection bracket 410 and is used to drive the displacement sensor 430 to move up and down. The displacement sensor 430 is used to detect the installation height of the stator assembly 20 in the conductive housing 10. The detection driver 420 can quickly and accurately drive the displacement sensor 430 to move up and down, realizing automated detection of the installation height.

[0086] Specifically, see Figure 10 and Figure 11The end of the displacement sensor 430 is provided with an elastic detection head 431 to prevent damage to the displacement sensor 430 and the stator assembly 20. Furthermore, the surface of the stator assembly 20 may have microscopic unevenness or macroscopic shape deviations. Upon contact with the surface of the stator assembly 20, the elastic detection head 431 elastically deforms according to the surface undulations, ensuring good contact between the elastic detection head 431 and the surface of the stator assembly 20.

[0087] Specifically, there are at least two displacement sensors 430, all of which are spaced apart vertically to avoid biased measurements from a single location and enhance the reliability of the test results. For example, if the stator assembly 20 is installed slightly tilted, measurement data from multiple locations can provide a more comprehensive understanding of the installation height deviation.

[0088] Optionally, the two displacement sensors 430 are located on two radially opposite sides of the stator assembly 20 , so that the distance between the two displacement sensors 430 can detect the inner diameter of the conductive housing 10 .

[0089] Furthermore, the detection mechanism 400 also includes a detection auxiliary frame 440, which is installed at the output end of the detection drive member 420. At least two displacement sensors 430 are installed on the detection auxiliary frame 440 to achieve synchronous lifting and lowering, ensure position synchronization, and verify the detection results.

[0090] Specifically, detection mechanism 400 also includes a reference plate 450, which is mounted below detection auxiliary frame 440. As detection auxiliary frame 440 descends, reference plate 450 comes into contact with the top surface of conductive housing 10. Reference plate 450 evenly transmits force to all parts of conductive housing 10, effectively calibrating the top surface of conductive housing 10, ensuring measurement consistency and improving the detection accuracy of displacement sensor 430.

[0091] Specifically, the reference plate 450 is mounted on the detection auxiliary frame 440 via the elastic auxiliary member 460. The elastic auxiliary member 460 can automatically adjust the position and posture of the reference plate 450 through its own elastic deformation, so that it is in the correct measurement reference position as much as possible.

[0092] Specifically, see Figure 10 and Figure 11The detection mechanism 400 also includes a detection controller 470 and a visual sensor 480. The visual sensor 480 is installed on the detection auxiliary frame 440. The visual sensor 480 is responsible for capturing detection images. The detection controller 470 will then perform image detection processing on these captured detection images. After processing, a set of radially symmetrical points, namely the first detection point and the second detection point, can be determined from the stator assembly 20; at the same time, another set of radially symmetrical 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 and obtain the midpoint of the line connecting the first detection point and the second detection point, namely the first center point; and the midpoint of the line connecting the third detection point and the fourth detection point, namely the second center point. By determining 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.

[0093] In one embodiment, combined Figure 1 The stator housing assembly machine also includes a blanking station located downstream of the detection mechanism 400 for blanking the product, for example, by a robot. After blanking, the product is transferred to the production line for cooling, reducing the space used for the rotating disc 120 and saving movement and cooling time.

[0094] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A stator housing assembly machine, characterized in that: The stator housing assembly machine comprises: A workbench comprises a base, a rotating disc and a plurality of bases, wherein the rotating disc is mounted on the base so as to be rotatable in a vertical direction, the 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 movably 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; A detection mechanism is located next to 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; the detection mechanism includes a detection bracket, a detection driver, and a displacement sensor, the detection driver is mounted on the detection bracket, the detection driver is used to drive the displacement sensor to perform a lifting movement, and the displacement sensor is used to detect the installation height of the stator assembly in the conductive housing; the detection mechanism also includes a detection auxiliary frame, the detection auxiliary frame is mounted on the output end of the detection driver, and the displacement sensor is mounted on the detection auxiliary frame; The detection mechanism further includes a reference plate, which is installed below the detection auxiliary frame and is attached to the top surface of the conductive housing as the detection auxiliary frame descends; The reference plate is mounted on the detection auxiliary frame via 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 and distributed around the vertical direction.

2. The stator housing assembly machine according to claim 1, wherein: The rotating disc has a rotating mounting hole, and a rotating mounting post is provided at the bottom of the base, and 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, two opposite sides of the first reference plane are respectively connected to the first arc surface, and the first reference plane is used for angular positioning of the base on the rotating disk.

3. The stator housing assembly machine according to claim 1, wherein: A first central column is provided on the top of the base, and the first central column is used to be embedded in the central hole of the conductive housing; And / or, the base includes a seat body and a first anti-rotation part, the seat body is installed on the rotating disk, the seat body is used to place the conductive housing, the first anti-rotation part is installed on the top of the seat body, the first anti-rotation part is located on the circumferential side of the conductive housing, the first anti-rotation part is provided with an anti-rotation positioning column, and the anti-rotation positioning column 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 drive and a clamping assembly. The press-fitting drive is connected to the clamping assembly and is used to drive the clamping assembly to perform lifting movements. The clamping assembly has a coaxially arranged clamping sleeve and a second center column. The lower end of the second center column protrudes from the lower end of the clamping sleeve. The clamping sleeve is used to sleeve the top end of the stator winding of the stator assembly, and the second center column is used to abut the inner side of the stator core of the stator assembly.

5. The stator housing assembly machine according to claim 4, wherein: The second center column has a cavity, and the side wall of the second center column has a plurality of through holes, the through holes are in communication with the cavity, the clamping assembly further comprises a variable diameter drive member, a variable diameter drive shaft and a plurality of radial blocks, each of the radial blocks is movably mounted in one of the through holes, the variable diameter drive member is connected to the variable diameter drive shaft, the variable diameter drive member drives the variable diameter drive shaft to perform lifting motion in the cavity, the variable diameter drive shaft has a variable diameter section, the outer diameter of the variable diameter section gradually increases or decreases in the vertical direction, and the variable diameter 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 on the outside of the clamping sleeve, the lower end of the first limiting column protrudes from the lower end of the second center column, and the lower end of the first limiting column is used to abut the base.

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

7. The stator housing assembly machine according to claim 6, wherein: The press-fitting mechanism also 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 bracket, and the first horizontal driving member drives the second anti-rotation member to move horizontally so that the first anti-rotation notch is fixedly sleeved on the output shaft of the first rotating driving member.

8. The stator housing assembly machine according to any one of claims 1 to 7, characterized in that: The stator housing assembly machine further includes a dust collection mechanism, the dust collection mechanism being located beside the rotating disc and upstream of the high-frequency heating mechanism, and being used to collect dust from the conductive housing located on the base as it passes by; And / or, the stator housing assembly machine further includes a marking mechanism, the marking mechanism is located beside the rotating disc, the marking mechanism is located downstream of the pressing mechanism, and the marking mechanism is used to mark the conductive housing located on the base as it passes by.

Images