A motor assembly

Abstract

The utility model discloses a motor assembly device, its through the collaborative setting of rack, bearing assembly, first assembly unit, second assembly unit and transfer manipulator, constructs a height integration and the smooth operation of automation production line. Successfully replace traditional inefficient manual assembly mode, utilize bearing assembly's automatic flow transfer between multiple stations, realize the accurate alignment and the primary press fitting of stator and rotor, and then through the cooperation of unique second assembly unit and transfer manipulator, solved the problem of full -automatic assembly of this small part of snap spring, finally completed the assembly of motor finished product. This whole process's automation integration, improved production efficiency significantly, reduced manpower cost greatly, through the accurate operation of mechanization, effectively avoided the problem of part scratch damage and assembly consistency difference caused by human factors, thereby ensured the quality stability and reliability of motor product, provided solid technical support for the large -scale, high -standard production of motor.

Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing technology, and in particular to a motor assembly device. Background Technology

[0002] Electric motors (also commonly referred to as "motors") are core drive components widely used in numerous fields such as home appliances, automobiles, industrial equipment, and robots. With the continuous growth of market demand, higher requirements are being placed on the production efficiency and consistency of electric motors.

[0003] In traditional motor manufacturing processes, the assembly of the stator and rotor is a crucial step. However, in many production scenarios, especially for small and medium-sized motors or motors with specific structures, the assembly still relies heavily on manual operation. The typical procedure is as follows: the operator manually picks up the stator, fixes it on a simple fixture, and then holds the rotor, relying on sight and touch to precisely insert the rotor shaft into the shaft hole of the stator assembly, completing the assembly.

[0004] This manual assembly method has the following prominent drawbacks and limitations:

[0005] Low production efficiency and high costs: The speed of manual assembly is limited by the operator's skill and physical strength, and the assembly cycle of a single product is long, making it difficult to meet the demands of large-scale, high-speed modern production. At the same time, rising labor costs directly increase the manufacturing cost of motors, weakening the product's market competitiveness.

[0006] Poor product consistency and unstable quality: Manual operation inevitably introduces individual differences and fluctuations in condition. During repeated assembly, uneven force and misalignment can easily cause the rotor and stator to scrape, damaging the enameled wire insulation layer or causing initial damage to the bearings. These problems may only be discovered in subsequent testing, or even become potential failure hazards, directly affecting the motor's performance, noise, and lifespan, making it difficult to guarantee product yield.

[0007] Difficulty adapting to automated production lines: Purely manual workstations are the bottleneck of the entire automated production line. Their unstable rhythm disrupts the smooth connection between the preceding and following processes, hinders the improvement of the overall automation and informatization level of the production line, and makes it impossible to achieve intelligent production management.

[0008] There are safety and occupational health risks: During assembly, operators need to perform frequent and repetitive actions such as grasping, aligning, and pressing, which can easily lead to musculoskeletal strain over time. In addition, there is a risk of finger pinching when handling magnetic rotors and stators.

[0009] Therefore, there is an urgent need in this field for a special device that can replace manual labor and achieve automated, high-precision assembly of motor stators and rotors to overcome the defects in the existing technologies. Utility Model Content

[0010] The main purpose of this invention is to propose a motor assembly device that can replace manual labor and realize automated and high-precision assembly of motor stator and rotor, thereby overcoming the defects of manual motor assembly.

[0011] To achieve the above objectives, this utility model proposes a motor assembly device, comprising:

[0012] frame;

[0013] A support assembly is movably mounted on the frame for supporting and positioning the stator assembly. The support assembly is capable of moving along the frame and stopping between multiple workstations.

[0014] The first assembly unit is located on the frame at a position corresponding to the first work station. The first assembly unit includes a rotor feeding unit for providing rotor components and a rotor transfer unit for transferring rotor components in a predetermined posture to press the rotor components onto the stator components on the carrier components to form a semi-finished motor.

[0015] The second assembly unit is located on the frame at the position corresponding to the second workstation. The second assembly unit includes a snap ring feeding unit for providing and conveying snap rings one by one to a preset assembly position, and an assembly robot.

[0016] The assembly robot is used to grab the semi-finished motor on the carrier component and transfer it so that the end of the rotating shaft of the semi-finished motor passes through the retaining ring located at the assembly position, thereby realizing the assembly action between the retaining ring and the semi-finished motor, completing the final assembly of the motor, and putting the assembled finished motor back to the carrier component.

[0017] The carrier component can also carry the finished motor to the subsequent printing and testing stations.

[0018] Preferably, the support assembly includes a mobile stage and a linear drive mechanism for driving the mobile stage to move along the frame;

[0019] The moving platform is equipped with a material position for positioning the stator assembly, which can be placed in the material position by manual operation or by a feeding gripper.

[0020] Preferably, the rotor feeding unit includes:

[0021] Rotor assembly gripper, used to grasp and transfer rotor assemblies in their initial orientation;

[0022] A transfer station is used to receive and temporarily place the rotor assembly;

[0023] A flip gripper is used to grab the rotor assembly in its initial position from the transfer platform and flip it so that the rotor assembly's shaft is adjusted to the assembly position before being placed back on the transfer platform.

[0024] The transfer platform can carry the rotor assembly in the assembly posture to the area below the rotor transfer unit, so that the rotor transfer unit can perform gripping and pressing operations.

[0025] Preferably, the snap ring feeding unit includes:

[0026] A vibratory feeder is used to orient and sort snap rings and output them one by one;

[0027] An adjustment platform is located at the output end of the vibratory feeder and is used to receive and carry the snap rings output by the vibratory feeder one by one.

[0028] A visual inspection mechanism is set at an angle relative to the adjustment table to identify the orientation of the retaining spring on the adjustment table in the first working posture of the adjustment table.

[0029] A snap ring removal unit is located above the adjustment platform;

[0030] The pressing table serves as the assembly position where the assembly robot performs the pressing operation;

[0031] The adjustment platform has at least two working postures:

[0032] The first working posture is an inclined detection posture, which tilts the retaining spring so that the visual inspection mechanism can detect it;

[0033] The second working posture is a horizontal picking posture, which makes the snap ring horizontal and the predetermined surface facing upward, so that the snap ring picking unit can be taken out;

[0034] The snap ring removal unit removes the snap ring from the adjustment table in the second working position and places it on the pressing table for positioning and pressing.

[0035] Preferably, the snap ring unit includes a drive assembly and an actuator;

[0036] The execution end includes a hollow column and a rod movably disposed within the column;

[0037] The outer diameter of the rod gradually increases from its lower end to its upper end, forming a conical structure;

[0038] The rod can move between an extended state with its lower end exposed and a retracted state with its body retracted into the cylinder.

[0039] When the rod is in the extended state, its thinner lower end can pass through the retaining ring, and its thicker conical section supports the inner ring of the retaining ring to achieve gripping and bearing of the retaining ring.

[0040] When the retaining ring needs to be released, the rod moves to the retracted state. The retaining ring is blocked by the lower end face of the column and cannot move upwards with it, thus detaching from the conical section of the rod and completing the release.

[0041] Preferably, the driving component includes a horizontal linear driving part for driving the entire actuator to perform translational motion, and a vertical linear driving part for driving the actuator to perform lifting motion.

[0042] Preferably, the horizontal linear drive unit of the snap ring unit also serves as the horizontal linear drive unit of the assembly robot, so as to drive the assembly robot to move horizontally between the support component and the pressing table;

[0043] The lifting and lowering movement of the assembly robot is driven by an independent lifting drive mechanism.

[0044] Preferably, a laser printing mechanism is also provided, which corresponds to a printing station located on the moving path of the bearing component, and the printing station is located after the second station where the second assembly unit is located.

[0045] Preferably, a testing mechanism is also provided, the testing mechanism including a first testing station and a second testing station arranged sequentially along the moving path of the bearing component;

[0046] The first test station is used to test the no-load speed, no-load current and direction of rotation of the finished motor.

[0047] The second testing station is used to test the overall resistance, withstand voltage performance and insulation performance of the finished motor.

[0048] The frame is also equipped with a material unloading station. After the finished motor is tested in sequence at the first test station and the second test station, it is finally sent to the material unloading station.

[0049] Preferably, it also includes a material handling element;

[0050] The number of material handling elements is two, corresponding to the first test station and the second test station respectively;

[0051] The material handling element is capable of lifting and horizontal movements to grab finished motors and transfer them to the next workstation or unloading workstation.

[0052] The automatic motor assembly device provided by this utility model constructs a highly integrated and smoothly operating automated production line through the coordinated arrangement of a frame, a support component, a first assembly unit, a second assembly unit, and a transfer robot. Its beneficial effects are mainly reflected in the following aspects: This device successfully replaces the traditional, inefficient manual assembly mode. Utilizing the automatic flow of the support component between multiple workstations, it achieves precise alignment and preliminary pressing of the stator and rotor. Furthermore, through the unique cooperation of the second assembly unit and the transfer robot, it solves the problem of fully automated assembly of the small component, the snap ring, ultimately completing the assembly of the finished motor. This fully automated integration not only significantly improves production efficiency and greatly reduces labor costs, but also effectively avoids problems such as scratch damage to parts and poor assembly consistency caused by human factors through precise mechanized operation. This ensures the quality stability and reliability of the motor products, providing a solid technical guarantee for the large-scale, high-standard production of motors. Attached Figure Description

[0053] Figure 1 This is a perspective view of the present utility model;

[0054] Figure 2 This is a three-dimensional view of the first assembly unit;

[0055] Figure 3 This is a perspective view of the second assembly unit;

[0056] Figure 4 A diagram showing the assembly of the snap ring feeding unit, the vision inspection mechanism, and the adjustment table;

[0057] Figure 5 This is a schematic diagram of the testing mechanism and the material unloading station. Detailed Implementation

[0058] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0059] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0060] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0061] This utility model proposes a motor assembly device.

[0062] In this embodiment of the utility model, such as Figures 1 to 5 As shown, the motor assembly device includes:

[0063] Rack 1;

[0064] A support component is movably mounted on the frame 1 for supporting and positioning the stator assembly. The support component is capable of moving along the frame 1 and stopping between multiple workstations.

[0065] The first assembly unit 2 is located at the position of the frame 1 corresponding to the first work station. The first assembly unit 2 includes a rotor feeding unit for providing rotor assembly and a rotor transfer unit 22 for transferring rotor assembly in a predetermined posture to press rotor assembly onto stator assembly on the bearing assembly to form motor semi-finished product.

[0066] The second assembly unit 3 is located at the position of the frame 1 corresponding to the second work station. The second assembly unit 3 includes a snap ring feeding unit 31 for providing and conveying snap rings one by one to a preset assembly position, and an assembly robot 32.

[0067] The assembly robot 32 is used to grab the semi-finished motor on the carrier component and transfer it so that the end of the rotating shaft of the semi-finished motor passes through the retaining ring located at the assembly position, thereby realizing the assembly action between the retaining ring and the semi-finished motor, completing the final assembly of the motor, and putting the assembled finished motor back to the carrier component.

[0068] The carrier component can also carry the finished motor to the subsequent printing and testing stations.

[0069] Specifically, the supporting component includes a mobile stage 4 and a linear drive mechanism for driving the mobile stage 4 to move along the frame 1;

[0070] The moving table 4 is provided with a material position for positioning the stator assembly, and the stator assembly can be placed in the material position by manual operation or by a feeding gripper.

[0071] The linear drive mechanism is mounted on the frame 1, which can be a conveyor belt. The moving table 4 is a precision-designed positioning fixture whose shape matches the shape of the stator assembly to be assembled. It is used to accurately accommodate and properly fix the stator assembly, ensuring that the stator assembly will not be displaced during movement and assembly, thus providing a foundation for subsequent high-precision assembly.

[0072] The stator assembly feeding method is flexible. It can be manually placed into the material position of the moving table 4 by the operator, or it can be automatically placed by the feeding gripper linked with external automated equipment to adapt to the production needs of different levels of automation.

[0073] The working method of the carrier component is as follows: at the initial loading station, the stator component is placed in the material position of the moving table 4; then, the conveyor belt is started, driving the moving table 4 and the stator component it carries to move step by step, stopping precisely at the first station, the second station and subsequent printing, testing and other stations in sequence, to complete the entire motor assembly and testing process.

[0074] Specifically, the rotor feeding unit includes:

[0075] Rotor assembly gripper 23 is used to grip and transfer the rotor assembly in its initial orientation;

[0076] Transfer station 24 is used to receive and temporarily place the rotor assembly;

[0077] The flip gripper 25 is used to grab the rotor assembly in the initial posture from the transfer table 24 and flip it so that the rotor assembly shaft is adjusted to the assembly posture and then placed back on the transfer table 24.

[0078] The transfer station 24 can carry the rotor assembly in the assembly posture to the area below the rotor transfer unit 22, so that the rotor transfer unit 22 can perform gripping and pressing operations.

[0079] Due to its shaft structure, the rotor assembly is usually conveyed and clamped with the lower end of the shaft facing upwards during initial loading, which makes it impossible to directly assemble with the stator assembly.

[0080] To solve this technical problem, the rotor feeding unit is designed with a sophisticated feeding production line that includes attitude adjustment functionality. Specifically, it includes:

[0081] Rotor assembly gripper 23: such as pneumatic fingers or special clamps, is responsible for gripping the rotor assembly in its initial position (i.e., with the lower end of the shaft facing upward) from the upstream feeding device and accurately placing it on the transfer table 24.

[0082] Transfer platform 24: The transfer platform 24 is a movable platform equipped with a fixture for positioning the rotor assembly. It first receives the rotor assembly in its initial position from the rotor assembly gripper 23 at a first position. Subsequently, after the flipping operation is completed, it carries the rotor assembly that has been flipped to the assembly position, i.e., the upper end of the shaft is facing upwards and the lower end is ready to be inserted into the stator, and moves it to the second position, i.e., directly below the rotor transfer unit 22, via a slide table, waiting to be picked up.

[0083] Flip gripper 25: The flip gripper 25 is located near the transfer table 24. It has at least one degree of rotational freedom, for example, by a rotary motor in conjunction with a pneumatic gripper. Its working process is as follows: it grips the rotor assembly in its initial posture from the transfer table 24 at the first position, then performs a 180° flip to adjust the rotor assembly to the correct assembly posture, and finally accurately places it back onto the transfer table 24.

[0084] Through the coordinated operation of the rotor assembly gripper 23 → turntable 24 (first point) → flip gripper 25 → turntable 24 (first point), the problem of attitude realignment before rotor assembly was successfully solved, laying a solid foundation for subsequent automated pressing.

[0085] The rotor transfer unit 22 is the component that ultimately performs the pressing action. It can be a linear module-driven gripper or a multi-degree-of-freedom robotic arm. After the turntable 24 transports the rotor assembly in the correct assembly posture to its position, the rotor transfer unit 22 descends and grips the rotor assembly, then rises and moves laterally above the moving platform 4, and finally descends again to precisely and smoothly press the rotor assembly into the central bearing hole of the stator assembly, completing the assembly of the semi-finished motor. Afterward, the moving platform 4 moves to the downstream process.

[0086] Specifically, the snap ring feeding unit 31 includes:

[0087] Vibratory feeder 33 is used to orient and sort the snap rings and output them one by one;

[0088] An adjustment table 34 is located at the output end of the vibratory plate 33 and is used to receive and carry the snap rings 100 output by the vibratory plate 33 one by one.

[0089] The visual inspection mechanism 35 is set at an inclined angle relative to the adjustment table 34, and is used to identify the front and back of the retaining spring 100 on the adjustment table 34 in the first working posture of the adjustment table 34.

[0090] The snap ring unit 36 ​​is positioned above the adjustment platform 34;

[0091] The pressing table 37 serves as the assembly position where the assembly robot 32 performs the pressing operation;

[0092] The adjustment platform 34 has at least two working postures:

[0093] The first working posture is an inclined detection posture, which tilts the snap ring 100 so that the visual inspection mechanism 35 can detect it.

[0094] The second working posture is a horizontal material handling posture, which makes the snap ring 100 horizontal so that the snap ring unit 36 ​​can be taken out.

[0095] The snap ring removal unit 36 ​​removes the snap ring from the adjustment table 34, which is in the second working posture, and places it on the pressing table 37 for positioning and pressing.

[0096] The described snap ring feeding unit 31 is used to solve the spatial interference problem in the automated feeding and attitude calibration of snap rings. Because snap rings are small in size and require high assembly precision, they need to be identified by visual inspection to determine their orientation. In traditional feeding methods, both the visual inspection and gripping mechanisms need to be placed above the parts, which can easily lead to physical interference.

[0097] This invention cleverly solves this problem through a multi-position adjustment platform 34:

[0098] The vibratory plate 33 is responsible for sorting the snap rings and conveying them one by one to the adjustment table 34.

[0099] The visual inspection mechanism 35 is not installed vertically downwards, but rather sideways at a certain angle next to the adjustment table 34. At this time, the adjustment table 34 is in its first working posture, fixing the retaining ring in an upward tilted posture. This posture is perfectly aligned with the lens of the visual inspection mechanism 35, enabling it to clearly and accurately determine the orientation of the retaining ring.

[0100] After the inspection is completed, to resolve the conflict caused by the occupied space above, the adjustment platform 34 will perform an angle adjustment action, such as rotating 45 degrees, to switch from the first working posture to the second working posture. This action adjusts the retaining spring 100 from the tilted inspection state to the horizontal and predetermined upward-facing material handling state.

[0101] At this point, the snap ring removal unit 36 ​​above the adjustment table 34 can smoothly descend and remove the snap ring whose posture has been confirmed to be correct without interference, and then transfer and precisely position it on the pressing table 37.

[0102] The process design of lateral detection, posture conversion, and vertical gripping effectively avoids spatial interference between devices, achieving highly reliable automatic feeding and detection within a compact space, which is an important innovation of this device.

[0103] Specifically, the snap ring unit 36 ​​includes a drive assembly and an actuator;

[0104] The execution end includes a hollow column 361 and a rod 362 movably disposed within the column 361;

[0105] The outer diameter of the rod 362 gradually increases from its lower end to its upper end, forming a conical structure;

[0106] The rod 362 can move relative to the column 361 in an extended state with its lower end exposed and a retracted state retracted into the column 361.

[0107] When the rod 362 is in the extended state, its thinner lower end can pass through the retaining ring, and its thicker conical section supports the inner ring of the retaining ring to achieve gripping and bearing of the retaining ring.

[0108] When the retaining ring needs to be released, the rod 362 moves to the retracted state. The retaining ring is blocked by the lower end face of the column 361 and cannot move upward with it, thus detaching from the conical section of the rod 362 and completing the release.

[0109] Specifically, the driving component includes a horizontal linear driving part for driving the entire actuator to perform translational motion, and a vertical linear driving part for driving the actuator to perform lifting motion.

[0110] The snap ring picking unit 36 ​​is responsible for accurately transferring the snap ring, which has completed attitude detection, from the flipping table to the pressing table 37. Its core lies in a cleverly designed actuator that can reliably pick up and release the snap ring without using traditional grippers.

[0111] Actuating end structure: The actuating end mainly consists of a column 361 and a rod 362. The rod 362 is coaxially inserted into the inner hole of the column 361 and can move up and down relative to the column 361 under the drive of external force (such as being pushed by a small cylinder).

[0112] Rod 362 Design: The key feature of rod 362 is its tapered shape, specifically, its outer diameter gradually increases from the bottom up. This makes the bottom of rod 362 very thin, facilitating its smooth passage through the inner hole of the retaining ring.

[0113] Grasping Principle: When the retaining ring needs to be grasped, the entire actuating end first descends, at which point the rod 362 is in an extended, exposed state at its lower end. The narrow lower end of the rod 362 first passes through the retaining ring. As the actuating end continues to descend or the rod 362 moves relative to the actuating end, the thicker conical section of the rod 362 gradually contacts and tightens with the inner ring of the retaining ring. Due to the elasticity of the retaining ring itself, it will lock onto the conical section of the rod 362, thus being reliably grasped.

[0114] Release principle: When the retaining ring needs to be placed on the pressing table 37, the rod 362 moves upward and retracts. During this process, the retaining ring is blocked by the lower end face of the column 361 and cannot rise with the rod 362. As the rod 362 continues to retract, the diameter of the part in contact with the inner ring of the retaining ring becomes smaller and smaller. When it becomes too small to provide sufficient support, the retaining ring disengages from the rod 362 under the action of gravity and is precisely released to the predetermined position on the pressing table 37.

[0115] Drive assembly: To complete the transfer task from the tilting table to the pressing table 37, the snap ring unit 36 ​​is also equipped with a drive assembly. This assembly typically includes a horizontal linear drive unit, such as a linear module or cylinder, and a vertical linear drive unit, such as another cylinder. The horizontal drive unit is responsible for moving the entire mechanism between the tilting table and the pressing table 37, while the vertical drive unit is responsible for controlling the lifting and lowering of the actuator to complete the gripping and placing actions.

[0116] This design is simple in structure and reliable in operation, making it particularly suitable for grasping small ring-shaped or C-shaped parts with internal holes, such as snap rings. It is a rather innovative detail in the design of this device.

[0117] Specifically, the horizontal linear drive unit of the snap ring unit 36 ​​also serves as the horizontal linear drive unit of the assembly robot 32, so as to drive the assembly robot 32 to move horizontally between the bearing component and the pressing table 37.

[0118] The lifting and lowering movement of the assembly robot 32 is driven by an independent lifting drive mechanism.

[0119] The drive system of the snap ring unit 36 ​​and the assembly robot 32 adopts an efficient layout that combines integration and independence, aiming to optimize space utilization and ensure the accuracy and reliability of each motion unit.

[0120] Shared Horizontal Drive: The horizontal linear drive unit of the snap ring unit 36 ​​is designed as a shared drive module. This module, such as a long-stroke linear module or a synchronous belt slide, not only drives the snap ring unit 36 ​​to move horizontally, but also simultaneously mounts the assembly robot 32 and its dedicated lifting drive mechanism on its slide. This means that the shared horizontal linear drive unit can synchronously drive the two actuators to perform horizontal reciprocating motion within the working area between the support component and the pressing table 37.

[0121] Independent lifting drive: Although the horizontal movement is synchronous, the lifting movements of the two are completely independent, which ensures the flexibility and timing control of their actions.

[0122] The lifting and lowering of the snap ring unit 36 ​​is controlled by a vertical linear drive unit within its own drive assembly, such as a compact cylinder, specifically for performing gripping and placement actions on the flip table and pressing table 37.

[0123] The lifting of the assembly robot 32 is controlled by a separate lifting drive mechanism, such as another cylinder or electric push rod, specifically for gripping and releasing motor semi-finished / finished products.

[0124] This compact drive layout reduces the cost and space required to configure a separate, complete horizontal movement mechanism for the assembly robot 32. Simultaneously, separating the most critical lifting movements with different timing sequences avoids motion interference, simplifies control logic, and improves the efficiency and reliability of the entire assembly process. This represents an optimized design in the structural integration of this device.

[0125] Specifically, a laser printing mechanism 5 is also provided, which corresponds to the printing station located on the moving path of the bearing component, and the printing station is located after the second station where the second assembly unit 3 is located.

[0126] When the carrier component moves the finished motor that has been fully assembled to the printing station, the laser printing mechanism 5 is activated to mark the motor housing at a designated location, engraving information such as model number, production date, and QR code.

[0127] The laser printing mechanism 5 used in this invention is a mature existing technology. Its specific structure typically includes a laser, a galvanometer system, and a control unit, which will not be described in detail here. Integrating it into this automated production line realizes a seamless automated process from assembly to labeling, further improving production efficiency and product traceability.

[0128] Specifically, a testing mechanism 6 is also provided, which includes a first testing station 61 and a second testing station 62 arranged sequentially along the moving path of the bearing component;

[0129] The first test station 61 is used to test the no-load speed, no-load current and direction of rotation of the finished motor.

[0130] The second test station 62 is used to test the overall resistance, withstand voltage performance and insulation performance of the finished motor.

[0131] The frame 1 is also provided with a material unloading station 7. After the finished motor is tested in sequence at the first test station 61 and the second test station 62, it is finally sent to the material unloading station 7.

[0132] After the assembly and printing process, a testing mechanism 6 is integrated to automatically inspect the core performance indicators of the finished motor to ensure the quality of the finished product.

[0133] The testing facility 6 contains two sequentially arranged testing stations:

[0134] First test station 61: At this station, a set of test probes or fixtures are used to contact the electrodes of the finished motor. After power is applied, its no-load speed and no-load current are measured, and its direction of rotation is determined to meet the design requirements.

[0135] Second testing station 62: At this station, a dedicated safety testing instrument (such as a withstand voltage insulation tester) is used to test the safety performance parameters of the finished motor, such as the overall resistance, withstand voltage (such as high voltage test) and insulation resistance.

[0136] Workflow: The carrier component carrying the finished motor first enters the first testing station 61 for performance testing. After the test is completed, it continues to the second testing station 62 for safety testing. Finally, all the finished motors that pass the tests are transported to the unloading station 7, where they can be removed from the carrier component manually or by an unloading robot, completing the entire production process.

[0137] By integrating this testing mechanism 6, this utility model realizes full-process automation from component assembly and performance testing to qualified product unloading, which greatly improves production efficiency and product consistency.

[0138] It should be noted that the specific testing principles of the first test station 61 and the second test station 62 are existing technologies, and their specific structural principles will not be elaborated here.

[0139] Specifically, sensors are also installed near the first test station 61 and the second test station 62 to sense whether the finished motors on the test stations have retaining rings. The sensors can achieve lifting or horizontal movement through drive elements. When sensing is not required, the sensors can be moved to avoid spatial interference problems.

[0140] Specifically, it also includes the material handling element 63;

[0141] The number of material handling elements 63 is two, corresponding to the first test station 61 and the second test station 62 respectively;

[0142] The material handling element 63 can perform lifting and horizontal movements to grab finished motor products and transfer them to the next workstation or unloading workstation 7.

[0143] To enable automated transfer between testing stations, the testing mechanism 6 is also equipped with a dedicated material handling element 63.

[0144] The number of material picking elements 63 is set to two, serving the first test station 61 and the second test station 62 respectively. Each material picking element 63 has an independent lifting drive mechanism such as a cylinder and a horizontal drive mechanism such as a linear module, cylinder or servo slide, so as to perform a complete action cycle of lowering gripping-lifting-horizontal transfer-lowering placement-lifting return.

[0145] The actuator of the material handling element 63 can be a pneumatic finger, a gripper, a servo clamp, or other suitable custom clamps. Its specific form can be designed according to the shape characteristics of the finished motor to ensure stable and reliable gripping.

[0146] By introducing the material handling element 63, this invention achieves full automation of the testing process, completely avoiding manual intervention and ensuring the stability of the testing cycle and the accuracy of product flow.

[0147] It should be noted that in the description of this utility model, components such as the linear drive mechanism, the transfer manipulator, the rotor transfer unit 22, the vision inspection mechanism 35, and the testing mechanism 6, etc., have specific structures and working principles that are common technologies or standard components in this technical field. To ensure the brevity of the specification, these parts are described below with reference to existing technologies:

[0148] Regarding the linear drive mechanism: The linear drive mechanism used for the load-bearing components and the horizontal and vertical movements of each robotic arm described in this utility model can all be implemented using conventional drive methods in the field, such as, but not limited to, structures driven by servo motors or stepper motors, and coupled with ball screw pairs or synchronous pulley sets for transmission. These are mature existing technologies for achieving precise positioning and movement in automated equipment.

[0149] Regarding the robotic arm and transfer unit: The core drive component of the transfer robotic arm and rotor transfer unit 22 mentioned in the claims can also adopt the aforementioned linear drive mechanism. Its execution end (i.e., gripping part) can adopt standard automated components such as pneumatic fingers, electric clamps, or vacuum suction cups, depending on the shape and characteristics of the object being gripped (such as a semi-finished motor or a rotor). These are all common knowledge in the field.

[0150] Regarding the visual inspection mechanism 35: The visual inspection mechanism 35 used in this utility model for detecting the orientation of a snap ring includes, in its standard form, an industrial camera, a lens, a light source, and supporting image processing software. Its workflow is as follows: Illuminated by the light source, the industrial camera captures images; the image data is transmitted to a processing unit (such as an industrial computer) and compared with a preset correct template for analysis, thereby determining the workpiece's orientation. This is a traditional technical solution widely used in automated inspection.

[0151] Regarding testing mechanism 6: In testing mechanism 6, the tests for motor no-load speed, current, and direction of rotation are performed by connecting test probes to the motor terminals for conductivity, and are completed by standard testing instruments such as power analyzers and data acquisition cards in the background. The tests for resistance, withstand voltage, and insulation are performed using dedicated safety testing instruments (or withstand voltage and insulation testers). Integrating such standard testing instruments with automated production lines is a common technical approach in this field.

[0152] Regarding the adjustment table 34, the angle adjustment function of the tilting table is achieved through a compact gear transmission mechanism, specifically:

[0153] A driven gear is fixedly mounted on one end of the rotating shaft of the adjustment platform 34, and a driving gear meshing with the driven gear is mounted on the output shaft of a drive element (such as a micro servo motor or a swing cylinder). Through precise control of the drive element, the driving gear rotates and drives the driven gear and the entire tilting platform to rotate by a specific angle. This gear meshing transmission method has a simple structure, precise transmission, and good self-locking performance, and is one of the conventional technical means in the field to achieve precise angle adjustment of small platforms.

[0154] The automatic motor assembly device provided by this utility model constructs a highly integrated and smoothly operating automated production line through the coordinated arrangement of a frame, a support component, a first assembly unit, a second assembly unit, and a transfer robot. Its beneficial effects are mainly reflected in the following aspects: This device successfully replaces the traditional, inefficient manual assembly mode. Utilizing the automatic flow of the support component between multiple workstations, it achieves precise alignment and preliminary pressing of the stator and rotor. Furthermore, through the unique cooperation of the second assembly unit and the transfer robot, it solves the problem of fully automated assembly of the small component, the snap ring, ultimately completing the assembly of the finished motor. This fully automated integration not only significantly improves production efficiency and greatly reduces labor costs, but also effectively avoids problems such as scratch damage to parts and poor assembly consistency caused by human factors through precise mechanized operation. This ensures the quality stability and reliability of the motor products, providing a solid technical guarantee for the large-scale, high-standard production of motors.

[0155] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A motor assembly device, characterized in that, include: Rack (1); A support component is movably mounted on the frame (1) for supporting and positioning the stator assembly. The support component is capable of moving along the frame (1) and stopping between multiple workstations. The first assembly unit (2) is located on the frame (1) at the position corresponding to the first work station. The first assembly unit (2) includes a rotor feeding unit for providing rotor assembly and a rotor transfer unit (22) for transferring rotor assembly in a predetermined posture to press rotor assembly onto stator assembly on the bearing assembly to form motor semi-finished product. The second assembly unit (3) is located on the frame (1) at the position corresponding to the second work station. The second assembly unit (3) includes a snap ring feeding unit (31) for providing and conveying snap rings one by one to a preset assembly position, and an assembly robot (32). The assembly robot (32) is used to grab the motor semi-finished product on the carrier component and transfer it so that the end of the rotating shaft of the motor semi-finished product passes through the retaining ring located at the assembly position, thereby realizing the assembly action between the retaining ring and the motor semi-finished product, completing the final assembly of the motor, and putting the assembled motor finished product back to the carrier component. The carrier component can also carry the finished motor to the subsequent printing and testing stations.

2. The motor assembly device as described in claim 1, characterized in that: The support assembly includes a mobile stage (4) and a linear drive mechanism for driving the mobile stage (4) to move along the frame (1); The mobile platform (4) is provided with a material position for positioning the stator assembly, and the stator assembly can be placed in the material position by manual operation or by a feeding gripper.

3. The motor assembly device as described in claim 1, characterized in that: The rotor feeding unit includes: Rotor assembly gripper (23) is used to grip and transfer the rotor assembly in its initial orientation; The transfer station (24) is used to receive and temporarily place the rotor assembly; The flip gripper (25) is used to grab the rotor assembly in the initial posture from the transfer table (24) and flip it so that the rotor assembly shaft is adjusted to the assembly posture and then placed back on the transfer table (24). The transfer station (24) can carry the rotor assembly in the assembly posture to the area below the rotor transfer unit (22) so that the rotor transfer unit (22) can perform gripping and pressing operations.

4. The motor assembly device as described in claim 1, characterized in that: The snap ring feeding unit (31) includes: Vibratory plate (33) is used to orient and sort the snap rings and output them one by one; An adjustment table (34) is set at the output end of the vibratory plate (33) and is used to receive and carry the snap rings (100) output by the vibratory plate (33) one by one. The visual inspection mechanism (35) is set at an inclined angle relative to the adjustment table (34) to identify the front and back of the retaining ring (100) on the adjustment table (34) in the first working posture of the adjustment table (34); A snap ring unit (36) is disposed above the adjustment platform (34); The press table (37) serves as the assembly position where the assembly robot (32) performs the press operation; The adjustment platform (34) has at least two working postures: The first working posture is an inclined detection posture, which tilts the snap ring (100) so that the visual inspection mechanism (35) can detect it; The second working posture is a horizontal material picking posture, which makes the snap ring (100) horizontal so that the snap ring unit (36) can be taken out; The snap ring removal unit (36) removes the snap ring from the adjustment table (34) which is in the second working posture, and moves it to the pressing table (37) for positioning and pressing.

5. The motor assembly device as described in claim 4, characterized in that: The snap ring unit (36) includes a drive assembly and an actuator; The execution end includes a hollow column (361) and a rod (362) movably disposed within the column (361). The outer diameter of the rod (362) gradually increases from its lower end to its upper end, forming a conical structure; The rod (362) can move relative to the column (361) between an extended state with its lower end exposed and a retracted state with its interior retracted into the column (361); When the rod (362) is in the extended state, its thinner lower end can pass through the retaining ring and use its thicker conical section to support the inner ring of the retaining ring, so as to achieve gripping and bearing of the retaining ring. When the snap ring needs to be released, the rod (362) moves to the retracted state, and the snap ring is blocked by the lower end face of the column (361) and cannot move upward, thus detaching from the conical section of the rod (362) and completing the release.

6. The motor assembly device as described in claim 5, characterized in that: The driving assembly includes a horizontal linear driving part for driving the entire actuator to perform translational motion, and a vertical linear driving part for driving the actuator to perform lifting and lowering motion.

7. The motor assembly device as described in claim 6, characterized in that: The horizontal linear drive unit of the snap ring unit (36) also serves as the horizontal linear drive unit of the assembly robot (32) to drive the assembly robot (32) to move horizontally between the carrier component and the pressing table (37); The lifting motion of the assembly robot (32) is driven by an independent lifting drive mechanism.

8. The motor assembly device as described in claim 1, characterized in that: A laser printing mechanism (5) is also provided, which corresponds to the printing station located on the moving path of the bearing component, and the printing station is located after the second station where the second assembly unit (3) is located.

9. The motor assembly device as described in claim 1, characterized in that: A testing mechanism (6) is also provided, which includes a first testing station (61) and a second testing station (62) arranged sequentially along the moving path of the bearing component. The first test station (61) is used to test the no-load speed, no-load current and direction of rotation of the finished motor. The second test station (62) is used to test the overall resistance, withstand voltage performance and insulation performance of the finished motor. The frame (1) is also provided with a material unloading station (7). After the finished motor is tested in sequence at the first test station (61) and the second test station (62), it is finally sent to the material unloading station (7).

10. The motor assembly apparatus as described in claim 9, characterized in that: It also includes a material handling element (63); The number of the material handling elements (63) is two, corresponding to the first test station (61) and the second test station (62) respectively. The material handling element (63) can perform lifting and horizontal movements to grab the finished motor and transfer it to the next workstation or unloading workstation (7).

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