Rotor welding magnetizing machine

Abstract

This application provides a rotor welding and magnetizing machine, including a worktable and a welding mechanism, a dimension detection mechanism, and a magnetizing mechanism sequentially installed on the worktable along a preset direction. The welding mechanism includes a welding bracket, a support base, and two welding torches. The support base is equipped with a first rotary drive assembly, which is used for inserting the rotor assembly and driving the rotor assembly to rotate around a first vertical axis. Each welding torch is vertically mounted on the welding bracket via an independent first lifting assembly. The two welding torches are located on the horizontal sides of the first vertical axis, and the ends of the welding torches are inclined from top to bottom towards the direction close to the first vertical axis. The dimension detection mechanism is used to detect the outer diameter of the welded rotor assembly. The magnetizing mechanism is used to magnetize rotor assemblies whose outer diameter has passed the detection. The welding torches do not need to rotate, and their ends are inclined, reducing the welding operation space and allowing welding to be performed in small spaces or at special locations where the weld point is close to the rotating shaft.

Description

Technical Field

[0001] This application belongs to the field of motor assembly equipment, and more specifically, relates to a rotor welding and magnetizing machine. Background Technology

[0002] An electric motor mainly consists of a rotor and a stator. When conductive wires are wound on the stator, magnets are installed on the rotor. In the rotor assembly process, after the rotor core is fitted with magnets, the rotor needs to be installed into a protective sleeve, and then a protective sleeve cover is installed on the sleeve. Finally, the welding parts are welded to complete the rotor assembly.

[0003] Chinese patent CN118508689A discloses a rotor magnetization and welding assembly line. The specific processes include: First, a magnetization process, where a material conveying mechanism transports a material pallet to the picking point of the magnetization mechanism, and a magnet loading and assembly mechanism assembles the magnet with the upper and lower magnet slots of the rotor; Second, a magnetization process; Third, a cover assembly process, where a first material transfer component picks up the rotor and transfers it to the cover, controlling the descent of the rotor-picking jaws to assemble the rotor and cover, and a press presses the cover and cover together; Fourth, a welding process, where a material conveying mechanism transports a material pallet to the picking point of the welding mechanism, and the welding mechanism drives a welding torch to weld the material. After welding one side, a picking and flipping component flips the material, and the welding mechanism continues welding. The welding specifically includes welding between the hollow tube (shaft) and the cover, and welding between the cover and the cover. However, this rotor welding and magnetization machine suffers from problems of large size and low assembly efficiency. Summary of the Invention

[0004] The purpose of this application is to provide a rotor welding magnetizer to solve the problems of large size and low assembly efficiency of rotor welding magnetizers in related technologies.

[0005] To achieve the above objectives, the technical solution adopted in the embodiments of this application is as follows:

[0006] A rotor welding and magnetizing machine includes a worktable and a welding mechanism, a dimension detection mechanism, and a magnetizing mechanism sequentially mounted on the worktable along a preset direction. The welding mechanism includes a welding bracket, a support base, and two welding torches. The support base is equipped with a first rotary drive assembly for inserting a rotor assembly and driving the rotor assembly to rotate around a first vertical axis. Each welding torch is vertically mounted on the welding bracket via an independent first lifting assembly. The two welding torches are located on opposite horizontal sides of the first vertical axis, with the ends of the welding torches tilting downwards towards the first vertical axis. The dimension detection mechanism is used to detect the outer diameter of the welded rotor assembly. The magnetizing mechanism is used to magnetize the rotor assembly whose outer diameter has passed the detection.

[0007] In one embodiment, each of the welding torches is mounted on the first lifting assembly via a pressure sensor, the pressure sensor being used to acquire the pressure parameters of the welding torch, and the two pressure sensors are connected in series via a wire.

[0008] In one embodiment, each of the welding torches is connected to the pressure sensor via an elastic element.

[0009] In one embodiment, each of the pressure sensors is externally fitted with a welding control switch.

[0010] In one embodiment, each of the first lifting components is configured with a first guide component, the first guide component is mounted on the welding bracket, and the output end of the first lifting component is mounted on the first guide component, thereby performing lifting and lowering movements in the vertical direction;

[0011] In one embodiment, each welding torch is equipped with a first displacement sensor, which is mounted on the welding bracket and is used to detect the amount of displacement of the welding torch in the vertical direction.

[0012] In one embodiment, the welding mechanism further includes a dust collection assembly, which includes a first sliding drive assembly, an air suction component, and a dust collection box. The first sliding drive assembly is mounted on the welding bracket, and the air suction component and the dust collection box are mounted vertically at intervals at the output end of the first sliding drive assembly and slide from back to front under the drive of the first sliding drive assembly.

[0013] In one embodiment, the suction member is mounted on the first sliding drive assembly via a second rotary drive assembly, and the suction member rotates about a second direction on the second rotary drive assembly, the second direction being perpendicular to the vertical direction.

[0014] In one embodiment, the number of suction components is two, and the two suction components are located on the horizontal sides of the first vertical axis. The two suction components are distributed at intervals along a first direction, which is perpendicular to the vertical direction.

[0015] In one embodiment, the welding mechanism further includes an air blowing assembly located on the side of one of the welding torches away from the other welding torch, the air blowing assembly being used to blow air onto the welding torches so that welding dust falls into the dust collection box.

[0016] In one embodiment, the welding mechanism further includes a clamping assembly comprising a column and an opening / closing clamp, the column being mounted on the welding bracket and the opening / closing clamp being mounted on the top of the column, the opening / closing clamp being capable of clamping or releasing the rotor assembly located on the first rotary drive assembly.

[0017] In one embodiment, the welding mechanism further includes a second lifting assembly, the lifting shaft of which is connected to the support base, and the second lifting assembly is used to drive the support base to perform lifting movements.

[0018] In one embodiment, the welding mechanism further includes a second sliding drive assembly and a slider, the slider having a positioning notch, the second sliding drive assembly driving the slider toward the lifting shaft of the second lifting assembly, so that the positioning notch covers the lifting shaft of the second lifting assembly.

[0019] In one embodiment, the size detection mechanism further includes a detection seat, a detection lifting assembly, and a shaft detection cylinder. The detection seat has an outer diameter qualified hole for accommodating a cover of the rotor assembly with a qualified outer diameter. The detection lifting assembly is used to drive the shaft detection cylinder to perform lifting and lowering movements. The shaft detection cylinder has a first hole and a second hole that are connected to each other. The second hole is located above the first hole. The first hole is used to accommodate the detection seat, and the second hole is used to accommodate the rotating shaft of the rotor assembly with a qualified position.

[0020] The rotor welding magnetizer provided in this application has at least the following beneficial effects: the rotor assembly is inserted into the first rotary drive assembly and can rotate around the first vertical axis to achieve 360° contact and welding with the welding gun, while the welding gun does not need to rotate, avoiding the need for the rotor welding magnetizer to reserve a large-size welding gun rotation space; the two welding guns are located on the horizontal sides of the first vertical axis and weld simultaneously, improving welding efficiency, balancing heat input during the welding process, and significantly reducing axial offset or radial deformation of the rotor assembly caused by unilateral heating; the two welding guns can be raised and lowered independently, allowing welding at different height positions of the rotor assembly; the inclined end of the welding gun reduces the space occupied near the first vertical axis, reducing the welding operation space, and allowing welding to be performed in small spaces or special positions where the weld point is close to the rotating shaft; after welding, the dimension inspection mechanism performs dimension inspection on the rotor assembly, and after the dimension inspection is qualified, the magnetization mechanism magnetizes the rotor assembly, realizing multi-process assembly operation of the rotor assembly. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or exemplary technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the rotor assembly.

[0023] Figure 2 This is a schematic diagram of the rotor welding magnetizer provided in the embodiments of this application;

[0024] Figure 3 A schematic diagram of the welding mechanism of the rotor welding magnetizer provided in an embodiment of this application;

[0025] Figure 4 Another perspective view of the welding mechanism provided in the embodiments of this application;

[0026] Figure 5 Another perspective view of the welding mechanism provided in the embodiments of this application;

[0027] Figure 6 This is a schematic diagram of the welding torch operation of the welding mechanism provided in the embodiments of this application;

[0028] Figure 7 This is a schematic diagram of the dust collection component of the welding mechanism provided in the embodiments of this application;

[0029] Figure 8 A schematic diagram of the clamping assembly of the welding mechanism provided in the embodiments of this application;

[0030] Figure 9 A schematic diagram of the working position of the support base of the welding mechanism provided in the embodiments of this application;

[0031] Figure 10 This is a schematic diagram of the structure of the dimension detection mechanism provided in the embodiments of this application;

[0032] Figure 11 This is a schematic diagram of the magnetization mechanism provided in an embodiment of this application.

[0033] The main markings in the attached figures are as follows:

[0034] 10. Rotor assembly; 11. Shaft; 12. Protective cover;

[0035] 100. Workbench;

[0036] 200. Welding mechanism; 210. Welding bracket; 211. Dust suction notch; 221. Support base; 222. First rotary drive assembly; 223. First vertical shaft; 224. Second lifting assembly; 2241. Lifting shaft; 225. Second sliding drive assembly; 226. Slider; 227. Positioning notch; 228. Second guide assembly; 231. Welding torch; 232. First lifting assembly; 233. Pressure sensor; 234. Elastic element; 235. Welding control switch; 23 6. First guide assembly; 237. First displacement sensor; 240. Dust collection assembly; 241. First sliding drive assembly; 242. Suction component; 243. Dust collection box; 244. Second rotary drive assembly; 245. Drain outlet; 246. Divider block; 250. Air blowing assembly; 260. Clamping assembly; 261. Column; 262. Third rotary drive assembly; 263. Opening and closing clamp; 271. First infrared detection assembly; 272. First vision sensor; 273. Protective cover;

[0037] 300. Dimensional inspection mechanism; 310. Inspection seat; 311. Outer diameter qualified hole; 320. Inspection lifting assembly; 330. Shaft inspection cylinder; 331. First hole body; 332. Second hole body; 340. Second infrared detection assembly; 350. Second vision sensor;

[0038] 400 Magnetizing mechanism; 410 Magnetizing component; 420 Magnetizing lifting assembly; 430 Third infrared detection assembly; 440 Third vision sensor. Detailed Implementation

[0039] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0040] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0041] Furthermore, 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 number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise expressly specified. "Several" means one or more, unless otherwise expressly specified.

[0042] In the description of this application, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0043] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] Throughout this specification, reference to "an embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of this application. Therefore, the phrase "in one embodiment" or "in some embodiments" appears in various places throughout the specification, and not all references are to the same embodiment. Furthermore, in one or more embodiments, particular features, structures, or characteristics may be combined in any suitable manner.

[0045] Please refer to Figure 1 The rotor assembly 10 includes a shaft 11, a cover 12, an iron core, and permanent magnets. The iron core is fixedly sleeved on the shaft 11, and multiple permanent magnets are fixedly installed on the iron core along the circumference of the iron core. The cover 12 is sleeved on the permanent magnets and fixed to the shaft 11 by welding, thereby ensuring the stability of the permanent magnet position during high-speed operation, improving the slot fill factor of the rotor assembly 10, and reducing the electrical density and copper loss of the rotor assembly 10.

[0046] Please see Figures 2 to 5 The rotor welding and magnetizing machine provided in this application embodiment will now be described. The rotor welding and magnetizing machine includes a worktable 100, and a welding mechanism 200, a dimensional detection mechanism 300, and a magnetizing mechanism 400 sequentially mounted on the worktable 100 along a preset direction. The preset direction can be a straight line or a curve, and is not limited here. Figure 2In the illustrated embodiment, the preset direction is the first direction X, which is perpendicular to the vertical direction Z, thereby facilitating the rotor assembly 10 to move quickly and over short distances between the welding mechanism 200, the size detection mechanism 300, and the magnetization mechanism 400.

[0047] The welding mechanism 200 includes a welding bracket 210, a support base 221, and two welding torches 231. The welding bracket 210 is fixedly mounted on the worktable 100. The support base 221 is mounted on the welding bracket 210. The support base 221 is equipped with a first rotary drive assembly 222, which is used for inserting the rotor assembly 10 and driving the rotor assembly 10 to rotate around a first vertical axis 223. Each welding torch 231 is vertically mounted on the welding bracket 210 via an independent first lifting assembly 232. The two welding torches 231 are located on the horizontal sides of the first vertical axis 223, and the ends of the welding torches 231 are inclined from top to bottom towards the first vertical axis 223. The dimensional inspection mechanism 300 is used to inspect the outer diameter of the welded rotor assembly 10. The magnetization mechanism 400 is used to magnetize the rotor assembly 10 whose outer diameter has passed the inspection.

[0048] In this application, the rotor assembly 10 is inserted into the first rotary drive assembly 222 and can rotate around the first vertical axis 223 to achieve 360° contact and welding with the welding torch 231. The welding torch 231 does not need to rotate, eliminating the need for reserved rotation space for a large welding torch 231, thus reducing the size of the rotor welding magnetizer. The two welding torches 231 are located on opposite horizontal sides of the first vertical axis 223, welding simultaneously. This improves welding efficiency and balances heat input during the welding process, reducing axial displacement or radial deformation of the rotor assembly 10 caused by unilateral heating. The two welding torches 231 can be raised and lowered independently, allowing welding at different heights of the rotor assembly 10.

[0049] In this embodiment, the rotating shaft 11 stands vertically in the center of the cover 12, and the welding operation space formed between the outer edge of the rotating shaft 11 and the inner edge of the cover 12 is small. In this embodiment, the end of the welding torch 231 is tilted, which reduces the space occupied near the first vertical shaft 223 and thus reduces the welding operation space required. Welding can be performed in small spaces or at special locations near the rotating shaft 11. After welding is completed, the dimensional inspection mechanism 300 performs dimensional inspection on the rotor assembly 10. After the dimensional inspection is qualified, the magnetization mechanism 400 magnetizes the rotor assembly 10, realizing the multi-process assembly operation of the rotor assembly 10.

[0050] In this embodiment, the first direction X, the second direction Y, and the vertical direction Z are all perpendicular straight lines.

[0051] Specifically, the end of the welding torch 231 refers to the electrode of the welding torch 231.

[0052] Specifically, the rotor welding and magnetizing machine also includes a transport mechanism for moving the rotor assembly 10 between the welding mechanism 200, the dimensional inspection mechanism 300, and the magnetizing mechanism 400. The transport mechanism can be a transport robot or a conveyor belt, and is not limited to any particular type. It is understood that in other embodiments, operators can also manually move the rotor assembly 10 between the welding mechanism 200, the dimensional inspection mechanism 300, and the magnetizing mechanism 400.

[0053] Specifically, the rotor welding magnetizer also includes a recycling mechanism. When the size detection mechanism 300 fails to meet the size requirements of the rotor assembly 10, the rotor assembly 10 is recycled to the recycling mechanism and is not transferred to the magnetization mechanism 400.

[0054] In one embodiment, the rotor welding and magnetizing machine further includes a control system, which is electrically connected to the welding mechanism 200, the dimension detection mechanism 300, and the magnetizing mechanism 400 respectively, so as to realize continuous welding, dimension detection and magnetizing operations on the same rotor assembly 10.

[0055] In one embodiment, see Figure 3 and Figure 5 As a specific implementation of the rotor welding magnetizer provided in this application, the welding mechanism 200 further includes a first infrared detection component 271. The first infrared detection component 271 is used to detect the positional accuracy of the rotor assembly 10 on the first rotation drive assembly 222, so as to avoid the welding torch 231 welding the cover 12 and the rotating shaft 11 that are not in the correct position.

[0056] Optionally, the first infrared detection component 271 is directly mounted on the workbench 100 to avoid occupying the space of the welding bracket 210, which is conducive to the miniaturization design of the welding bracket 210.

[0057] Optionally, the first infrared detection component 271 is electrically connected to the control system. After the first infrared detection component 271 sends a signal to the control system that the welding position is qualified, the control system instructs the first rotary drive component 222, the first lifting component 232 and the welding torch 231 to start.

[0058] In one embodiment, see Figure 3 , Figure 4 and Figure 5In one specific embodiment of the rotor welding magnetizer provided in this application, each welding torch 231 is mounted on the first lifting assembly 232 via a pressure sensor 233. The pressure sensor 233 is used to acquire the pressure parameters of the welding torch 231. The pressure sensor 233 monitors the pressure deviation between the two welding torches 231 in real time. When the pressure of either welding torch 231 is abnormal due to workpiece positioning error, the feed amount of the corresponding first lifting assembly 232 is automatically adjusted to ensure that the welding points on both sides are subjected to uniform force. For example, the difference in welding pressure on both sides does not exceed 5% of their respective welding pressures, thus avoiding eccentricity of the rotor assembly 10 or asymmetrical welding spatter caused by uneven pressure on one side.

[0059] Specifically, the two pressure sensors 233 are connected in series with wires. Compared with the parallel connection scheme, this not only reduces wiring complexity but also reduces the number of terminals and plugs, thus saving space. For the two sides of the symmetrically welded rotor assembly 10, the series design ensures that the welding pressure of the two welding guns 231 is matched in real time.

[0060] Specifically, the welding mechanism 200 also includes a first vision sensor 272, which is used to detect the weld appearance quality. Based on this, the pressure sensor 233 monitors the electrode pressure of the welding torch 231 in real time, and together with the first vision sensor 272, realizes dual closed-loop control of welding pressure and weld morphology, thereby reducing the weld cracking rate.

[0061] Optionally, the first vision sensor 272 is directly mounted on the worktable 100, avoiding occupying the space of the welding bracket 210 and facilitating the miniaturization design of the welding bracket 210.

[0062] In one embodiment, see Figure 5 and Figure 6 In one specific embodiment of the rotor welding magnetizer provided in this application, a welding control switch 235 is sleeved on the outside of each pressure sensor 233. The welding control switch 235 is linked to the pressure sensor 233. When the welding torch 231 descends to contact the rotor assembly 10 under the drive of the first lifting assembly 232, and the pressure reaches the preset start value, the welding control switch 235 controls the welding torch 231 to start. The welding torch 231 is controlled by the pressure sensor 233 to perform welding at the preset pressure value. After welding is completed, the welding torch 231 rises under the drive of the first lifting assembly 232. When the pressure is less than the preset pressure value, the welding torch 231 stops working.

[0063] The pressure sensor 233 is located inside the welding control switch 235, which ensures that the pressure sensor 233 has a stable working environment and avoids the complex wiring and large space occupation caused by setting the two separately.

[0064] In one embodiment, see Figure 5 and Figure 6In one specific embodiment of the rotor welding magnetizer provided in this application, each welding torch 231 is connected to a pressure sensor 233 via an elastic element 234. The elastic element 234 ensures a reliable electrical connection between the end of the welding torch 231 and the rotor assembly 10, while unstable contact resistance causes fluctuations in the welding current, reducing the contact resistance and ensuring consistent current transmission. Furthermore, the welding torch 231 is driven to descend by the first lifting assembly 232. When it contacts the rotor assembly 10, the elastic element 234 absorbs the instantaneous impact force, preventing the electrode from deforming or cracking due to rigid collision.

[0065] Specifically, a vertically arranged limiting rod is connected to the lower part of the welding control switch 235, the welding torch 231 is slidably disposed on the limiting rod, and the elastic element 234 is sleeved on the limiting rod and located between the welding torch 231 and the welding control switch 235.

[0066] In one embodiment, see Figure 6 As a specific implementation of the rotor welding magnetizer provided in this application, each first lifting component 232 is equipped with a first guide component 236. The first guide component 236 is installed on the welding bracket 210, and the output end of the first lifting component 232 is installed on the first guide component 236, supporting and guiding the welding torch 231 to move up and down precisely in the vertical direction Z.

[0067] In one embodiment, see Figure 5 As a specific embodiment of the rotor welding magnetizer provided in this application, the first lifting assembly 232, welding control switch 235, elastic element 234, and welding torch 231 are connected sequentially from top to bottom along the vertical direction Z and are located in the same XZ plane. That is, the welding control switch 235, elastic element 234, and welding torch 231 corresponding to the same first lifting assembly 232 are coaxially arranged. Based on this, the first lifting assembly 232 linearly drives the welding torch 231 to perform lifting and lowering movements from top to bottom, avoiding structural deformation caused by lateral force and ensuring movement stability; compared with the traditional method of transmission through intermediate mechanisms such as connecting rods and gears, the total length in the vertical direction Z is shortened, and the space occupied in the second direction Y is reduced, and interference with other components in the second direction Y is avoided, which is beneficial to the miniaturization design of the welding mechanism 200.

[0068] Among them, combined Figure 6 Two first lifting components 232, two welding control switches 235, two elastic elements 234 and two welding torches 231 are arranged side by side and located on both sides of the first vertical axis 223. The structure is compact, parallel to each other and does not interfere with each other.

[0069] In one embodiment, see Figure 6As a specific implementation of the rotor welding magnetizer provided in this application, each welding torch 231 is equipped with a first displacement sensor 237. The first displacement sensor 237 is installed on the welding bracket 210. The first displacement sensor 237 is used to detect the displacement of the welding torch 231 in the vertical direction Z. On the one hand, it controls the height position of the welding point formed by the welding torch 231. On the other hand, it controls different lifting speeds of the welding torch 231 according to different heights, so that the closer to the rotor assembly 10, the smaller the speed of the welding torch 231.

[0070] Specifically, the two first displacement sensors 237 are mounted on both sides of the two elastic members 234 in the first direction X, and are located at the same height as the elastic members 234, so as to avoid occupying the narrow welding work space below and achieve a compact structural layout.

[0071] In one embodiment, combined Figure 5 The welding mechanism 200 also includes a protective cover 273, which is rotatably mounted on the welding bracket 210. When closed, the protective cover 273 encloses the welding space to prevent weld slag from splashing outwards. After welding is completed, the protective cover 273 is opened to facilitate the removal and placement of the rotor assembly 10. Specifically, the protective cover 273 has a viewing window for easy observation of the welding process.

[0072] In one embodiment, see Figure 4 and Figure 7 As a specific embodiment of the rotor welding magnetizer provided in this application, the welding mechanism 200 further includes a dust collection component 240. The dust collection component 240 includes a first sliding drive component 241, an air suction component 242, and a dust collection box 243. The first sliding drive component 241 is mounted on the welding bracket 210. The air suction component 242 and the dust collection box 243 are installed vertically at intervals at the output end of the first sliding drive component 241 and slide from back to front under the drive of the first sliding drive component 241. The high-temperature welding slag generated during welding is adsorbed by the air suction component 242 and moves backward along the second direction Y. At the same time, the welding slag particles fall under the action of gravity and fall directly into the dust collection box 243 below in a parabolic trajectory.

[0073] The forward and backward direction is consistent with the second direction Y. The first sliding drive assembly 241 is offset from the welding torch 231, the rotor assembly 10, and the first rotary drive assembly 222 in the second direction Y to avoid occupying the narrow welding operation space. When the welding torch 231 stops its lifting and lowering movement, the first sliding drive assembly 241 drives the suction component 242 and the dust collection box 243 to move along the second direction Y toward the welding torch 231 to avoid interference.

[0074] In one embodiment, see Figure 7As a specific embodiment of the rotor welding magnetizer provided in this application, the suction component 242 is installed on the first sliding drive component 241 through the second rotary drive component 244. The suction component 242 rotates around the second direction Y in the second rotary drive component 244 to form a rotating airflow, which guides the welding slag to flow spirally backward and towards the middle, avoiding the welding slag from splashing laterally.

[0075] In one embodiment, see Figure 7 As a specific implementation of the rotor welding magnetizer provided in this application, there are two suction components 242. The two suction components 242 are set at the same height and are located on both sides of the first vertical axis 223. The two suction components 242 are distributed at intervals along the first direction X. A local low-pressure area is formed between the two suction components 242, which causes the welding slag to converge towards the middle and accelerate its settling into the dust collection box 243, thus avoiding the welding slag from splashing laterally.

[0076] Specifically, the two suction components 242 rotate in opposite directions, and the airflow attracts each other in the first direction X, which further intensifies the convergence of welding slag towards the center, confining the welding slag generated during the welding process in the middle area and preventing it from spreading to both sides, further preventing the welding slag from splashing laterally, which helps to reduce the space for collecting welding slag and reduce the size of the dust collection box 243 in the first direction X.

[0077] In one embodiment, combined Figure 7 The dust collection box 243 has a drain port 245 on its rear side to further transfer welding slag and prevent it from accumulating inside the dust collection box 243. A partition block 246 is provided inside the dust collection box 243, causing the depth of the dust collection box 243 to gradually increase towards both sides along the first vertical axis 223. Firstly, the partition block 246 reduces the inner cavity of the dust collection box 243, making it easier for the drain port 245 to remove the welding slag from the dust collection box 243 with relatively small suction. Secondly, the change in depth guides the welding slag to flow towards the edge of the dust collection box 243 and is drawn away near the drain port 245, also preventing welding slag at the inner edge of the dust collection box 243 from detaching from the dust collection box 243. Thirdly, the change in depth makes it easier for welding slag in the middle to collide with the partition block 246, resulting in kinetic energy loss and preventing it from flying away. The slag then deposits along the surface of the partition block 246 towards both sides of the dust collection box 243, while the welding slag on both sides is further away from the suction component 242, preventing the welding slag from being re-adsorbed by the suction component 242.

[0078] Optionally, there are two drain outlets 245, which are located on both sides of the two suction components 242 in the first direction X.

[0079] In one embodiment, see Figure 5As a specific embodiment of the rotor welding magnetizer provided in this application, the welding mechanism 200 further includes an air blowing assembly 250. The air blowing assembly 250 is located on the side of one of the welding torches 231 away from the other welding torch 231. The air blowing assembly 250 is used to blow air onto the welding torch 231 to remove the welding slag adhering to the electrode of the welding torch 231, so that the dust generated during welding falls into the dust collection box 243.

[0080] In one embodiment, see Figure 3 and Figure 7 The dust collection component 240 and the support base 221 are staggered in the second direction Y, making full use of the space in the second direction Y. This ensures that the projections of the dust collection component 240 and the support base 221 on the XY plane do not overlap, saving lateral installation space. The welding bracket 210 has a dust collection notch 211, the shape and contour of which are adapted to the overall shape and contour of the suction component 242 and the dust collection box 243. When dust collection is required, the first sliding drive component 241 drives the suction component 242 and the dust collection box 243 to move forward, passing through the dust collection notch 211. At this time, the suction component 242 and the dust collection box 243 basically seal the dust collection notch 211, forming a relatively closed dust collection space, which facilitates the dust collection component 240 to directly capture the welding slag generated during the welding process. Optionally, a sealing strip is provided on the edge of the dust collection notch 211. After dust collection is completed, the suction component 242 and the dust collection box 243 return to the rear side through the dust collection notch 211.

[0081] In one embodiment, see Figure 8 As a specific embodiment of the rotor welding magnetizer provided in this application, the welding mechanism 200 further includes a clamping assembly 260, which includes a column 261 and an opening and closing clamp 263. The column 261 is mounted on the welding bracket 210, and the opening and closing clamp 263 is mounted on the top of the column 261. The opening and closing clamp 263 can clamp or release the rotor assembly 10 located on the first rotary drive assembly 222. During welding, the opening and closing clamp 263 clamps the side of the cover 12 to reduce the axial runout and / or radial sway of the rotor assembly 10, avoid the rotor assembly 10 from shaking due to high-temperature thermal expansion during welding or weld cracking due to thermal stress, and avoid defects such as weld displacement, undercut, and lack of fusion caused by displacement. Among them, the column 261 raises the opening and closing clamp 263, which is located below the welding torch 231. It makes full use of the space in the vertical Z direction, does not obstruct the operation of the welding torch 231, and reduces the area occupied in the XY plane, which is conducive to the miniaturization design of the welding mechanism 200.

[0082] Specifically, the clamping assembly 260 also includes a clamping lifting assembly, which is installed on the top of the column 261. The opening and closing clamp 263 is installed at the output end of the clamping lifting assembly, so that the opening and closing clamp 263 can be flexibly adjusted in height to meet the different height clamping requirements of the rotor assembly 10. The opening and closing clamp 263 can be flush with the upper surface of the cover 12, that is, flush with the welding position, to avoid torque generated due to height difference and ensure that the clamping force is evenly applied to the rotor assembly 10.

[0083] Specifically, the clamping assembly 260 also includes a third rotary drive assembly 262, which is mounted on the top of the column 261, and the opening and closing fixture 263 is mounted on the output end of the third rotary drive assembly 262. After one end of the cover 12 is welded to the rotating shaft 11, the third rotary drive assembly 262 drives the opening and closing fixture 263 to rotate 180° around the second direction Y, causing the rotor assembly 10 to flip up and down, and then the other end of the cover 12 is welded to the rotating shaft 11. There is no need to set up an additional flipping assembly or adjust the position of the welding gun 231, which improves assembly efficiency on the one hand, and avoids the need to leave a large amount of room for movement due to the flipping of the welding gun 231, thus reducing repeated clamping errors.

[0084] Optionally, the third rotary drive assembly 262 is mounted at the output end of the clamping lifting assembly.

[0085] Specifically, the column 261, the third rotary drive assembly 262, and the opening and closing clamp 263 are connected sequentially along the second direction Y, thereby maximizing the space utilization in the second direction Y, shortening the size of the clamping assembly 260 in the second direction Y, and facilitating the miniaturization design of the welding mechanism 200.

[0086] Specifically, the welding torch 231, clamping assembly 260, and support base 221 are distributed sequentially along the vertical direction Z to maximize the utilization of vertical space. As a result, the welding torch 231 and clamping assembly 260, and the support base 221 and clamping assembly 260 are vertically separated, their movement trajectories have no horizontal intersection, and the three do not interfere with each other. The three can make full use of the XY plane dimensions at their respective heights.

[0087] In one embodiment, see Figure 9As a specific embodiment of the rotor welding magnetizer provided in this application, the welding mechanism 200 further includes a second lifting assembly 224. The lifting shaft 2241 of the second lifting assembly 224 is connected to the support base 221, and the second lifting assembly 224 is used to drive the support base 221 to perform lifting movements. The second lifting assembly 224 drives the support base 221 to rise, raising the rotor assembly 10, releasing the planar space on the surface of the worktable 100, and avoiding obstacles in the plane. Furthermore, raising the rotor assembly 10 increases the surrounding space of the rotor assembly 10, which is beneficial for cooperation with the welding torch 231 and other structures. For example, the welding torch 231, the clamping assembly 260, and the first rotary drive assembly 222 respectively contact the upper, middle, and lower positions of the rotor assembly 10.

[0088] In one embodiment, see Figure 9 As a specific embodiment of the rotor welding magnetizer provided in this application, the welding mechanism 200 further includes a second sliding drive assembly 225 and a slider 226. The slider 226 has a positioning notch 227. The second sliding drive assembly 225 drives the slider 226 toward the lifting shaft 2241 of the second lifting assembly 224, so that the positioning notch 227 wraps around the lifting shaft 2241 of the second lifting assembly 224. The radial displacement movement of the lifting shaft 2241 is restricted by mechanical contact, ensuring that the lifting shaft 2241 remains coaxial with the first vertical shaft 223, avoiding positional displacement of the lifting shaft 2241 due to insufficient rigidity, and ensuring the height positioning accuracy of the support 221 and the rotor assembly 10.

[0089] In one embodiment, combined Figure 9 The welding structure also includes a second guide assembly 228, which guides the lifting shaft 2241 to move along the first vertical shaft 223.

[0090] In one embodiment, see Figure 10 As a specific embodiment of the rotor welding magnetizer provided in this application, the dimensional inspection mechanism 300 includes an inspection seat 310, an inspection lifting assembly 320, and a shaft inspection cylinder 330. The inspection seat 310 has an outer diameter qualified hole 311, which is used to accommodate the cover 12 of the rotor assembly 10 with a qualified outer diameter. The outer diameter qualified hole 311 only allows rotor assemblies 10 with a qualified outer diameter cover 12 to fall into the inspection seat 310, thereby realizing the inspection of the outer diameter and perpendicularity of the rotor assembly 10.

[0091] The detection lifting assembly 320 is used to drive the shaft detection cylinder 330 to move up and down. The shaft detection cylinder 330 has a first hole 331 and a second hole 332 that are connected. The second hole 332 is located above the first hole 331. The first hole 331 is used to accommodate the detection seat 310, and the second hole 332 is used to accommodate the rotating shaft 11 of the rotor assembly 10 when it is in the correct position. If the verticality or position of the rotating shaft 11 is out of tolerance, it cannot be inserted into the second hole 332. Optionally, the fitting clearance between the second hole 332 and the rotating shaft 11 is designed to be 0.05mm to 0.2mm.

[0092] Optionally, the first hole 331 abuts against the cover 12, and the bottom of the second hole 332 is provided with a distance measuring sensor to measure the distance from the top of the rotating shaft 11 to the bottom of the second hole 332, thereby detecting whether the length of the rotating shaft 11 protruding from the cover 12 is qualified.

[0093] Specifically, the cover 12 is located inside the outer diameter qualified hole 311, the lower end of the rotating shaft 11 extends to the bottom of the worktable 100, and the dimensional inspection mechanism 300 includes a lower inspection cylinder with a third hole for accommodating the rotating shaft 11 of the rotor assembly 10 in a qualified position. If the verticality or position of the rotating shaft 11 is out of tolerance, it cannot be inserted into the third hole.

[0094] Optionally, the third hole body abuts against the cover 12, and a distance measuring sensor is provided at the bottom of the third hole body to measure the distance from the bottom end of the rotating shaft 11 to the bottom of the third hole body, thereby detecting whether the length dimension of the rotating shaft 11 protruding from the cover 12 is qualified.

[0095] In one embodiment, see Figure 10 The size detection mechanism 300 also includes a second infrared detection component 340, which is used to detect the positional accuracy of the rotor assembly 10 on the detection seat 310, and then detect the downward movement of the detection cylinder 330 driven by the lifting assembly 320 drive shaft.

[0096] Optionally, the second infrared detection component 340 is directly mounted on the worktable 100.

[0097] In one embodiment, see Figure 10 The size detection mechanism 300 also includes a second vision sensor 350, which is used to detect the gap between the outer diameter qualified hole 311 and the cover 12 to avoid insufficient outer diameter of the rotor assembly 10.

[0098] In one embodiment, see Figure 11As a specific embodiment of the rotor welding magnetizer provided in this application, the magnetizing mechanism 400 includes a magnetizing component 410 and a magnetizing lifting assembly 420. The magnetizing lifting assembly 420 is connected to the magnetizing component 410 and is used to drive the magnetizing component 410 to move down so as to cover the rotor assembly 10 located below and magnetize it.

[0099] In one embodiment, the magnetizing mechanism 400 further includes a third infrared detection component 430, which is used to detect whether the rotor assembly 10 is coaxially arranged with the magnetizing component 410, and then the magnetizing lifting assembly 420 drives the magnetizing component 410 to move downward.

[0100] Optionally, the third infrared detection component 430 is directly mounted on the worktable 100.

[0101] In one embodiment, see Figure 11 The size detection mechanism 300 also includes a third vision sensor 440. The size detection mechanism 300 simultaneously detects surface defects of the rotor assembly 10 to avoid magnetizing defective products.

[0102] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0103] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A rotor welding magnetizer, characterized in that, The system includes a workbench and a welding mechanism, a dimensional detection mechanism, and a magnetization mechanism sequentially mounted on the workbench along a preset direction. The welding mechanism includes a welding bracket, a support base, and two welding torches. The support base is equipped with a first rotary drive assembly for inserting a rotor assembly and driving the rotor assembly to rotate around a first vertical axis. Each welding torch is vertically mounted on the welding bracket via an independent first lifting assembly. The two welding torches are located on opposite horizontal sides of the first vertical axis, with the ends of the welding torches tilted downwards towards the first vertical axis. The dimensional detection mechanism is used to detect the outer diameter of the welded rotor assembly. The magnetization mechanism is used to magnetize rotor assemblies whose outer diameter has passed the detection. Each of the welding torches is mounted on the first lifting assembly via a pressure sensor. The pressure sensor is used to acquire the pressure parameters of the welding torch. The two pressure sensors are connected in series via a wire. Each of the welding torches is connected to the pressure sensor via an elastic element; Each of the pressure sensors is externally fitted with a welding control switch; The welding mechanism further includes a dust collection assembly, which includes a first sliding drive assembly, an air suction component, and a dust collection box. The first sliding drive assembly is mounted on the welding bracket. The air suction component and the dust collection box are mounted vertically at intervals at the output end of the first sliding drive assembly and slide from back to front under the drive of the first sliding drive assembly. The air suction component is mounted on the first sliding drive assembly via a second rotation drive assembly. The air suction component rotates around a second direction on the second rotation drive assembly, and the second direction is perpendicular to the vertical direction. The number of suction components is two, the two suction components are set at the same height, the two suction components are located on the horizontal sides of the first vertical axis, the two suction components are distributed at intervals along a first direction, the first direction is perpendicular to the vertical direction; the two suction components rotate in opposite directions. The dust collection box has two drain ports on its rear side, and the two drain ports are located on both sides of the two suction components in the first direction. The dust collection box is equipped with partition blocks, so that the depth of the dust collection box gradually increases on both sides of the first vertical axis.

2. The rotor welding magnetizer as described in claim 1, characterized in that: Each of the first lifting components is equipped with a first guide component, the first guide component is mounted on the welding bracket, and the output end of the first lifting component is mounted on the first guide component, thereby performing lifting and lowering movements in the vertical direction; Each of the welding torches is equipped with a first displacement sensor, which is mounted on the welding bracket and is used to detect the amount of displacement of the welding torch in the vertical direction.

3. The rotor welding magnetizer as described in claim 1, characterized in that: The welding mechanism further includes an air blowing assembly located on one side of one of the welding torches away from the other welding torch. The air blowing assembly is used to blow air onto the welding torches so that the welding dust falls into the dust collection box.

4. The rotor welding magnetizer as described in claim 1, characterized in that: The welding mechanism further includes a clamping assembly, which includes a column and an opening / closing clamp. The column is mounted on the welding bracket, and the opening / closing clamp is mounted on the top of the column. The opening / closing clamp can clamp or release the rotor assembly located on the first rotary drive assembly.

5. The rotor welding magnetizer as described in any one of claims 1 to 4, characterized in that: The welding mechanism further includes a second lifting assembly, the lifting shaft of which is connected to the support base, and the second lifting assembly is used to drive the support base to perform lifting movements; The welding mechanism further includes a second sliding drive assembly and a slider. The slider has a positioning notch. The second sliding drive assembly drives the slider toward the lifting shaft of the second lifting assembly so that the positioning notch covers the lifting shaft of the second lifting assembly.

6. The rotor welding magnetizer as described in any one of claims 1 to 4, characterized in that: The dimensional detection mechanism includes a detection seat, a detection lifting assembly, and a shaft detection cylinder. The detection seat has an outer diameter qualified hole for accommodating the cover of the rotor assembly with a qualified outer diameter. The detection lifting assembly is used to drive the shaft detection cylinder to perform lifting and lowering movements. The shaft detection cylinder has a first hole and a second hole that are connected to each other. The second hole is located above the first hole. The first hole is used to accommodate the detection seat, and the second hole is used to accommodate the rotating shaft of the rotor assembly with a qualified position.

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