Automatic feeding positioning mechanism and automatic feeding method

Abstract

The invention relates to an automatic feeding positioning mechanism and an automatic feeding method, the automatic feeding positioning mechanism comprises a material loading assembly vehicle, the top of the material loading assembly vehicle is provided with a tray, and the tray is fixedly provided with a plurality of stator placing seats; the positioning frame is used for being fixedly arranged at the feeding station, and a containing space used for longitudinally passing through the material carrying assembly truck is formed in the positioning frame; the tray is borne and transversely limited by the top of the positioning frame; the detection assembly is arranged on the positioning frame and is used for sending out a signal after the tray is detected to reach the target position; and the jacking driving assembly is arranged on the positioning frame, the top of the jacking driving assembly makes contact with the bottom of the tray, and the jacking driving assembly vertically pushes the tray to ascend to the grabbing position after receiving the signal. Through cooperation of the material loading assembly vehicle, the box body positioning frame, the light sensor and the jacking driving assembly, the accuracy of feeding and discharging operation each time is ensured, and the problem that in the related technology, positioning is not accurate in the automatic feeding and discharging process of the stator iron core is solved.

Description

Technical Field

[0001] The present application relates to the technical field of automatic loading and unloading positioning, and in particular to an automatic loading and unloading positioning mechanism and an automatic loading and unloading method. Background Art

[0002] In the production process of stator assembly and assembly painting, the process of loading the stator core and unloading the stator assembly is the key to determining production safety and efficiency. Since the stator core of the new energy motor is very large and heavy, manual handling will cause physical weakness and safety hazards, and the use of KBK lifting will cause clamping quality hazards and low efficiency. Based on this factor, the use of robot automatic clamping method becomes the preferred method, but robot clamping and loading and unloading requires positioning to be realized, so a material trolley system that can achieve positioning is needed to meet the needs of automatic loading and unloading. Summary of the invention

[0003] The embodiments of the present application provide an automatic loading and positioning mechanism and an automatic loading method to solve the problem of inaccurate positioning of the stator core during the automatic loading and unloading process in the related art.

[0004] In the first aspect, an automatic loading and positioning mechanism is provided, which includes: a loading and assembly vehicle, a pallet is provided on the top, and a plurality of stator placement seats are fixedly provided on the pallet; a positioning frame, which is used to be fixed at the loading and assembly station, and has an accommodation space for the loading and assembly vehicle to pass longitudinally; the top of the positioning frame supports and laterally limits the pallet; a detection component, which is provided on the positioning frame and is used to send a signal after detecting that the pallet has reached the target position; a jacking drive component, which is provided on the positioning frame, and the top contacts the bottom of the pallet, and vertically pushes the pallet up to the grabbing position after receiving the signal.

[0005] In some embodiments, the positioning frame includes two rectangular frames disposed at intervals, and the top and bottom ends of the vertical rods on the same side of the two rectangular frames are correspondingly connected to a crossbeam perpendicular to the rectangular frames to form a U-shaped frame structure.

[0006] In some embodiments, a supporting auxiliary part is further included, which includes a supporting base and a supporting rod; the supporting rods are respectively fixed to the bottom of the vertical rods of the rectangular frame, and the supporting base is arranged at the bottom of the supporting rods and contacts the ground.

[0007] In some embodiments, a fixed bracket is also included, which includes a vehicle body connecting plate and a ground connecting plate; the vehicle body connecting plate and the ground connecting plate are perpendicular to each other and fixedly connected by a reinforcing cross beam; multiple vehicle body connecting plates are respectively fixed on the cross bar of the rectangular frame and the cross beam located below; the ground connecting plate is fixedly connected to the ground.

[0008] In some embodiments, a reinforcing cross seat is provided on the top of the two rectangular frames, and the reinforcing cross seat is used to support the pallet; a transverse limiting rod is provided on the two reinforcing cross seats, which is used to laterally support and limit the pallet; a longitudinal limiting block is provided on one end of the two reinforcing cross seats close to the cross beam, and the longitudinal limiting block is used to longitudinally limit the pallet.

[0009] In some embodiments, storage seats are symmetrically provided at both ends of the bottom of the reinforced cross seat; the lifting drive components are fixedly provided on the storage seats respectively, and the lifting drive components are connected to the rectangular frame and the storage seats through the storage seats.

[0010] In some embodiments, a vertical side surface of the storage seat is connected to the rectangular frame, and the top is connected to the bottom of the rectangular frame; a vertical mounting channel is provided on the storage seat; the jacking drive assembly includes a driving cylinder and a jacking pin; the driving cylinder is located in the mounting channel, and the top power output end of the driving cylinder is connected to the jacking pin; a through hole for the jacking pin to pass through is provided on the reinforced cross seat; the driving cylinder drives the jacking pin to pass through the through hole to push the pallet up to the grabbing position.

[0011] In some embodiments, a through tip is provided at the top of the lifting pin; and a lifting hole is provided on the tray for the through tip to pass through.

[0012] In some embodiments, the detection component is a light sensor, which is arranged on a reinforced cross seat, and the end face of the detection end of the light sensor is flush with the end face of the longitudinal limit block close to the opening of the U-shaped frame structure; at least one fixed seat is provided on the top of the cross beam, and a buffer member is penetrated through each fixed seat; a spring block is provided on the buffer member in the direction of the opening of the U-shaped frame structure, and the end face of the spring block at the compression limit is located in the same vertical plane as the end face of the detection end of the light sensor.

[0013] In a second aspect, an automatic loading method is provided, which includes: obtaining a signal value of a detection component, and when the received signal value reaches a set threshold, controlling the jacking drive component to start, and vertically pushing the pallet up to a grabbing position.

[0014] The beneficial effects of the technical solution provided by this application include:

[0015] The embodiment of the present application provides an automatic loading positioning mechanism and an automatic loading method, wherein the loading assembly vehicle is equipped with a tray at the top, and a plurality of stator placement seats are installed on the tray, which can effectively carry a plurality of stators of different sizes at the same time, so as to solve the problem that the stators are heavy and manual handling will cause physical fatigue and safety hazards; secondly, the positioning frame is used to be fixed on the loading station, and the frame is provided with sufficient space inside to accommodate the loading assembly vehicle to ensure that it can move smoothly within the frame, and the top of the frame can carry the tray and prevent it from moving laterally; the detection component is located on the positioning frame, responsible for monitoring whether the tray has reached the predetermined target position, and once the detection reaches the target position, a signal can be sent to the drive device to trigger subsequent actions; the lifting drive component is also installed on the positioning frame, in contact with the bottom of the tray, and after receiving the signal of the detection component, the drive component will push the tray to rise vertically, so as to facilitate loading and unloading operations. Through the cooperation of the loading assembly vehicle, the positioning frame, the detection component and the lifting drive component, the accuracy of each loading and unloading operation is ensured, and the problem of inaccurate positioning of the stator core in the automatic loading and unloading process in the related technology is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic diagram of the structure of the material loading assembly vehicle and the box body positioning frame provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of the structure of a loading and assembly vehicle provided in an embodiment of the present application;

[0019] Figure 3 A schematic diagram of the bottom surface structure of the storage plate provided in an embodiment of the present application;

[0020] Figure 4 A schematic diagram of the top structure of the storage plate provided in an embodiment of the present application;

[0021] Figure 5 A schematic diagram of the box positioning frame structure provided in an embodiment of the present application.

[0022] In the figure: 1. light sensor; 2. loading assembly vehicle; 21. stator placement seat; 22. tray; 23. lifting hole; 3. positioning frame; 31. rectangular frame; 32. crossbeam; 33. reinforced cross seat; 34. longitudinal limit block; 35. transverse limit rod; 36. storage seat; 37. perforation; 4. supporting accessories; 41. supporting base; 42. supporting rod; 5. lifting drive assembly; 6. fixing seat; 7. buffer; 71. spring block; 8. fixing bracket; 81. vehicle body connecting plate; 82. ground connecting plate; 83. reinforced cross beam. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0024] The embodiments of the present application provide an automatic loading and positioning mechanism and an automatic loading method, which can solve the problem of inaccurate positioning of the stator core during the automatic loading and unloading process in the related art.

[0025] Since the stator core of the new energy motor is very heavy due to its large size in the production process of the stator assembly and assembly dripping paint, manual handling will result in physical weakness and safety hazards, and KBK hoisting will result in clamping quality hazards and low efficiency. Therefore, a machine capable of automatic clamping is designed to solve this problem; however, in the process of robot clamping and loading and unloading, it is inevitable that the positioning accuracy is inaccurate, and positioning is required to achieve actual needs. Therefore, a material trolley system capable of positioning is designed to meet the needs of automatic loading and unloading, wherein the material trolley is used to load the heavier stator core, and then a positioning auxiliary frame is designed, which is designed to be in line with the structure size of the material trolley and fixed directly below the material receiving device; after the material trolley enters the positioning auxiliary frame, it is temporarily fixed, and then a power drive device capable of vertically pushing the material trolley to the material receiving device is set on the positioning auxiliary frame, and is temporarily connected to the material trolley, thereby solving the problem of inaccurate positioning of the stator core in the automatic loading and unloading process in the related technology, and greatly improving the efficiency of the production line and reducing the potential safety hazards caused by manual operation.

[0026] refer to Figure 1-5, an automatic loading and positioning mechanism, comprising: a loading and assembly vehicle 2, a pallet 22 is provided on the top, and a plurality of stator placement seats 21 are fixedly provided on the pallet 22; a positioning frame 3, which is used to be fixedly arranged at the loading and assembly station, and has a receiving space for the loading and assembly vehicle 2 to pass longitudinally therein; the top of the positioning frame 3 carries and laterally limits the pallet 22; a detection component, which is arranged on the positioning frame 3 and is used to send a signal after detecting that the pallet 22 reaches the target position; a jacking drive component 5, which is arranged on the positioning frame 3, and the top contacts the bottom of the pallet 22, and vertically pushes the pallet 22 up to the grabbing position after receiving the signal.

[0027] Through this structural design, the loading assembly vehicle 2 is provided with a pallet 22 at the top, and a plurality of stator placement seats 21 are installed on the pallet 22, which can effectively carry a plurality of stators of different sizes at the same time to solve the problem that the stators are heavy and manual handling will cause physical fatigue and safety hazards; secondly, the positioning frame 3 is used to be fixed on the loading station, and sufficient space is provided inside the frame to accommodate the loading assembly vehicle 2 to ensure that it can move smoothly within the frame, and the top of the frame can carry the pallet 22 and prevent it from moving laterally; the detection component is located on the positioning frame 3, and is responsible for monitoring whether the pallet 22 has reached the predetermined target position. Once it is detected that the target position has been reached, a signal can be sent to the drive device to trigger subsequent actions; the jacking drive component 5 is also installed on the positioning frame 3, in contact with the bottom of the pallet 22, and after receiving the signal of the detection component, the jacking drive component 5 will push the pallet 22 to rise vertically to facilitate loading and unloading operations. The coordination of the loading assembly vehicle 2, the positioning frame 3, the detection assembly and the jacking drive assembly 5 ensures the accuracy of each loading and unloading operation, and solves the problem of inaccurate positioning of the stator during automatic loading and unloading in the related art.

[0028] In some preferred embodiments, the positioning frame 3 includes two rectangular frames 31 spaced apart from each other, and the top and bottom ends of the vertical bars on the same side of the two rectangular frames 31 are correspondingly connected with a crossbeam 32 perpendicular to the rectangular frames 31 to form a U-shaped frame structure.

[0029] Through this structural design, a U-shaped frame structure is formed by combining two rectangular frames 31 and crossbeams 32. This structure provides good stability and load-bearing capacity, increases the integrity of the connection, ensures that it is not easily deformed when subjected to external forces, and helps to cooperate with the entry and exit of the loading assembly vehicle 2 and limit its lateral displacement. The design of the positioning frame 3 ensures the precise positioning of the pallet 22, providing an important guarantee for the accuracy of the automated loading system.

[0030] In some preferred embodiments, a supporting auxiliary part 4 is also included, which includes a supporting base 41 and a supporting rod 42; the supporting rods 42 are respectively fixed at the bottom of the vertical rods of the rectangular frame 31, and the supporting base 41 is arranged at the bottom of the supporting rods 42 and in contact with the ground.

[0031] Through this structural design, a supporting auxiliary part 4 is also provided at the bottom of the positioning frame 3, wherein a supporting rod 42 is connected to the bottom of the positioning frame 3, and a supporting base 41 is located at the bottom of the supporting rod 42 and in contact with the ground, providing additional stability and ensuring that the supporting system will not tilt or slide due to external force.

[0032] In some preferred embodiments, a fixed bracket 8 is also included, which includes a vehicle body connecting plate 81 and a ground connecting plate 82; the vehicle body connecting plate 81 and the ground connecting plate 82 are perpendicular to each other and fixedly connected by a reinforcing crossbeam 83; a plurality of vehicle body connecting plates 81 are respectively fixed on the crossbar of the rectangular frame 31 and the crossbeam 32 located below; the ground connecting plate 82 is fixedly connected to the ground.

[0033] Through this structural design, the positioning frame 3 is fixed to the ground. In addition to setting up corresponding auxiliary parts to ensure its stability on the ground, the positioning frame 3 must be accurately positioned and fixed through the fixed bracket 8, wherein the vehicle body connecting plate 81 is fixedly connected to the cross bar of the rectangular frame 31, and the ground connecting plate 82 is fixedly connected to the bottom surface. The vehicle body connecting plate 81 and the ground connecting plate 82 are fixedly connected by the reinforcing crossbeam 83 to form a solid whole, thereby ensuring the stability of the connection between the positioning frame 3 and the ground.

[0034] In some preferred embodiments, a reinforcing cross seat 33 is provided on the top of the two rectangular frames 31, and the reinforcing cross seat 33 is used to support the tray 22; a transverse limiting rod 35 is provided on the two reinforcing cross seats 33, which is used to laterally support and limit the tray 22; a longitudinal limiting block 34 is provided on one end of the two reinforcing cross seats 33 close to the cross beam 32, and the longitudinal limiting block 34 is used to longitudinally limit the tray 22.

[0035] In this embodiment, a reinforced cross seat 33 is disposed on the top of the two rectangular frames 31 to enhance the bearing capacity of the entire structure. The reinforced cross seat ensures the stability of the pallet 22 during use, and mainly provides a basis for loading other components. The transverse limit rod 35 is disposed on the two reinforced cross seats 33, which can effectively resist the lateral displacement of the pallet 22 and ensure that the position of the pallet 22 is fixed during the positioning operation. Two longitudinal limit blocks 34 are respectively disposed at one end of the two reinforced cross seats 33 close to the cross beam 32, and their function is to limit the longitudinal displacement of the pallet 22, mainly to facilitate the determination of the target position reached by the loading assembly vehicle 2, and to facilitate automatic loading and unloading. The design of this positioning frame 3 significantly improves the stability and positioning accuracy of the pallet 22 by introducing reinforced structures and limiting measures.

[0036] In some preferred embodiments, storage seats 36 are symmetrically provided at both ends of the bottom of the reinforcing cross seat 33 ; the jacking drive assembly 5 is fixedly provided on the storage seats 36 respectively, and the jacking drive assembly 5 is connected to the rectangular frame 31 and the storage seats 36 through the storage seats 36 .

[0037] Through this embodiment, the storage seat 36 is fixed on the top of the reinforcing cross seat 33, and the storage seat 36 can be used as an installation platform for the jacking drive assembly 5. Its design allows multiple jacking drive assemblies 5 to work in parallel. It should be noted that the stability of the tray 22 must be ensured during the jacking and pushing process of the jacking drive assembly 5, so the symmetry of the installation position of the storage seat 36 must be ensured. After the multiple jacking drive assemblies are deployed, they should be controlled together to enhance the adaptability of the system.

[0038] In some preferred embodiments, one vertical side of the storage seat 36 is connected to the rectangular frame 31, and the top is connected to the bottom of the rectangular frame 31; a vertical mounting channel is provided on the storage seat 36; the jacking drive assembly 5 includes a driving cylinder and a jacking pin; the driving cylinder is located in the mounting channel, and the top power output end of the driving cylinder is connected to the jacking pin; a through hole 37 for the jacking pin to pass through is provided on the reinforcing cross seat 33; the driving cylinder drives the jacking pin to pass through the through hole 37 to push the tray 22 up to the grabbing position.

[0039] With this structural design, the driving cylinder is used as an external force driving device to provide the power required for vertical movement, and is arranged on both sides of the bottom of the reinforced cross seat 33. The four driving cylinders are symmetrically distributed and can move up and down stably on the predetermined track to ensure that the up and down movement of the pallet 22 is well and stably controlled. The lifting pin is connected to the top drive of the driving cylinder and is responsible for converting the movement of the cylinder into the lifting movement of the pallet 22. The lifting pin can be freely extended and retracted vertically to ensure that the pallet 22 can be pushed to complete loading and unloading and can be slowly reset. The design of the lifting drive assembly 5 using the driving cylinder and the lifting pin enables the pallet 22 to have efficient vertical movement capabilities. This design not only helps to improve the efficiency of material handling, but also improves the accuracy of loading and unloading.

[0040] In some preferred embodiments, a through tip is provided on the top of the jacking pin; and a jacking hole 23 is provided on the tray 22 for the through tip to pass through.

[0041] This embodiment is a further improvement of the previous embodiment, and can improve the loading and unloading accuracy of the loading assembly vehicle 2. The structural design of the through tip of the jacking pin, wherein the through tip can pass through the through hole 37 and the jacking hole 23. This design enables the jacking pin to accurately position through the jacking hole 23 of the pallet 22 when the pallet 22 is lifted, and can also limit the pallet 22 to prevent its displacement during the lifting process. When the driving cylinder is started, the jacking pin moves upward, and its through tip passes through the pallet 22 through the jacking hole 23, and the jacking pin pushes the pallet 22 upward. Through this structural design, the pallet 22 remains stable during the up and down movement, reducing the risk of tilting.

[0042] In some preferred embodiments, the detection component is a light sensor 1, which is arranged on a reinforced cross seat 33, and the end face of the detection end of the light sensor 1 is flush with the end face of the longitudinal limit block 34 close to the opening of the U-shaped frame structure; at least one fixed seat 6 is provided on the top of the cross beam 32, and a buffer member 7 is penetrated through each fixed seat 6; the buffer member 7 is provided with a spring block 71 in the direction of the opening of the U-shaped frame structure, and the end face of the spring block 71 at the compression limit is located in the same vertical plane as the end face of the detection end of the light sensor 1.

[0043] Through this structural setting, on the one hand, the detection component adopts a light sensor 1, and the loading assembly vehicle 2 runs into the positioning frame 3. The light sensor 1 changes the light intensity due to the shielding after the loading assembly vehicle 2 reaches the target position, thereby triggering a change in the signal. The signal is fed back to the controller, and the controller transmits the signal to the jacking drive component 5. After receiving the signal, the jacking drive component 5 starts to work and pushes the pallet 22. On the other hand, at least one fixed seat 6 is arranged on the top of the crossbeam 32, and a buffer 7 is arranged on the fixed seat 6. The contact end of the buffer 7 and the loading assembly vehicle 2 is provided with a spring block 71. The spring block 71 can play a protective role when the loading assembly vehicle 2 enters the positioning frame 3 and is about to hit the offside; and the position of the compression limit end face of the spring block 71 and the detection end face of the light sensor 1 are located in the same vertical plane, which can ensure that the light sensor 1 is set in the best working position while protecting it from being hit by the loading assembly vehicle 2. The longitudinal limit block 34 is used to limit the loading assembly vehicle 2 when the buffer 7 accidentally falls off.

[0044] The embodiment of the present application provides an automatic loading method, which includes: obtaining a signal value of a detection component, and when the received signal value reaches a set threshold, controlling the jacking drive component 5 to start, and vertically pushing the tray 22 up to a grabbing position.

[0045] Through this method, after the loading assembly vehicle 2 is loaded with multiple stators, it drives into the target position in the box body positioning frame 3 through the opening of the U-shaped frame structure; it should be noted that the loading assembly vehicle 2 drives to the target position to trigger the lifting function; based on the fact that the light intensity received by the light sensor 1 reaches the set threshold after the loading assembly vehicle 2 reaches the target position, a signal is sent to the lifting drive component 5; the light sensor 1 located on the loading assembly vehicle 2 is responsible for real-time monitoring of the intensity of ambient light. When the light intensity reaches the threshold of the light sensor 1, that is, the loading assembly vehicle 2 has entered the target position, a signal is sent to the lifting drive component 5. It should be noted that the threshold is the light intensity value based on the loading assembly vehicle 2 at the target position obtained by testing in actual applications; the lifting drive component 5 immediately starts and starts to execute the action after receiving the signal from the light sensor 1. The air pressure system inside the driving cylinder will push the piston to move, thereby generating a driving force. The action of the driving cylinder causes the lifting pin to push the lower tray 22 to move vertically, so that accurate loading and unloading can be completed.

[0046] The beneficial effects brought by the present invention also include:

[0047] The embodiment of the present application provides an automatic loading and positioning mechanism and an automatic loading method, wherein the top of the loading assembly vehicle 2 is provided with a pallet 22, and a plurality of stator placement seats 21 are installed on the pallet 22, which can effectively carry a plurality of stators of different sizes at the same time, so as to solve the problem that the stators are heavy and manual handling will cause physical fatigue and safety hazards; secondly, the positioning frame 3 is used to be fixed at the loading station, and sufficient space is provided inside the frame to accommodate the loading assembly vehicle 2, so as to ensure that it can move smoothly within the frame, and the top of the frame can carry the pallet 22 and prevent it from moving laterally; the detection component is located on the positioning frame 3, and is responsible for monitoring whether the pallet 22 has reached the predetermined target position. Once it is detected that the target position has been reached, a signal can be sent to the drive device to trigger subsequent actions; the jacking drive component 5 is also installed on the positioning frame 3, in contact with the bottom of the pallet 22, and after receiving the signal of the detection component, the jacking drive component 5 will push the pallet 22 to rise vertically to facilitate loading and unloading operations. The coordination of the loading assembly vehicle 2, the positioning frame 3, the detection assembly and the jacking drive assembly 5 ensures the accuracy of each loading and unloading operation, and solves the problem of inaccurate positioning of the stator during automatic loading and unloading in the related art.

[0048] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0049] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0050] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. An automatic feeding and positioning mechanism, characterized in that: It includes: A loading assembly vehicle (2) is provided with a tray (22) on the top, and a plurality of stator placement seats (21) are fixedly provided on the tray (22); A positioning frame (3) is used to be fixedly arranged at a loading station and has a receiving space therein for the longitudinal passage of the loading assembly vehicle (2); the top of the positioning frame (3) supports and laterally limits the pallet (22); a detection component, which is arranged on the positioning frame (3) and is used to send a signal after detecting that the tray (22) has reached a target position; A lifting drive assembly (5) is arranged on the positioning frame (3), and the top of the lifting drive assembly contacts the bottom of the tray (22). After receiving the signal, the lifting drive assembly (5) vertically pushes the tray (22) to rise to the grabbing position.

2. The automatic feeding and positioning mechanism according to claim 1, characterized in that: The positioning frame (3) comprises two rectangular frames (31) arranged at intervals, and the top and bottom ends of the vertical rods on the same side of the two rectangular frames (31) are correspondingly connected to a crossbeam (32) perpendicular to the rectangular frames (31) to form a U-shaped frame structure.

3. The automatic feeding and positioning mechanism according to claim 2, characterized in that: It also includes a supporting auxiliary part (4), which includes a supporting base (41) and a supporting rod (42); the supporting rods (42) are respectively fixed to the bottom of the vertical rods of the rectangular frame (31), and the supporting base (41) is arranged at the bottom of the supporting rods (42) and is in contact with the ground.

4. The automatic feeding and positioning mechanism according to claim 2, characterized in that: It also includes a fixed bracket (8), which includes a vehicle body connecting plate (81) and a ground connecting plate (82); the vehicle body connecting plate (81) and the ground connecting plate (82) are perpendicular to each other and are fixedly connected via a reinforcing crossbeam (83); The plurality of vehicle body connection plates (81) are respectively fixedly arranged on the crossbar of the rectangular frame (31) and the crossbeam (32) located below; and the ground connection plate (82) is fixedly connected to the ground.

5. The automatic feeding and positioning mechanism according to claim 2, characterized in that: The tops of the two rectangular frames (31) are each provided with a reinforcing cross seat (33), and the reinforcing cross seat (33) is used to carry the tray (22); Both of the two reinforcing cross seats (33) are provided with a transverse limiting rod (35) for laterally supporting and limiting the tray (22); A longitudinal limit block (34) is provided on one end of the two reinforcing cross seats (33) close to the cross beam (32), and the longitudinal limit block (34) is used to longitudinally limit the tray (22).

6. The automatic loading and positioning mechanism according to claim 5, characterized in that: The two ends of the bottom of the reinforced horizontal seat (33) are symmetrically provided with storage seats (36); The lifting drive components (5) are respectively fixedly arranged on the storage seats (36), and the lifting drive components (5) are connected to the rectangular frame (31) and the storage seats (36) through the storage seats (36).

7. The automatic loading and positioning mechanism according to claim 6, characterized in that: One vertical side surface of the storage seat (36) is connected to the rectangular frame (31), and the top is connected to the bottom of the rectangular frame (31); a vertical installation channel is provided on the storage seat (36); The lifting drive assembly (5) comprises a driving cylinder and a lifting pin; the driving cylinder is located in the installation channel, and the top power output end of the driving cylinder is connected to the lifting pin; The reinforcing cross seat (33) is provided with a through hole (37) for the lifting pin to pass through; The driving cylinder drives the lifting pin to pass through the through hole (37) to push the tray (22) up to the grabbing position.

8. The automatic feeding and positioning mechanism according to claim 7, characterized in that: The top of the lifting pin is provided with a penetrating tip; The tray (22) is provided with a lifting hole (23) for the penetration tip to pass through.

9. The automatic loading and positioning mechanism according to claim 7, characterized in that: The detection component is a light sensor (1), which is arranged on the reinforcing cross seat (33), and the detection end face of the light sensor (1) is flush with the end face of the longitudinal limit block (34) close to the opening of the U-shaped frame structure; At least one fixing seat (6) is provided on the top of the crossbeam (32), and a buffer member (7) is provided through each fixing seat (6); a spring block (71) is provided on the buffer member (7) in the direction of the opening of the U-shaped frame structure, and the position of the end face of the spring block (71) at the compression limit is located in the same vertical plane as the detection end face of the light sensor (1).

10. An automatic feeding method, characterized in that: It includes: Providing an automatic feeding and positioning mechanism as described in any one of claims 1 to 9; The signal value of the detection component is obtained, and when the received signal value reaches a set threshold value, the lifting drive component (5) is controlled to start, and the tray (22) is vertically pushed up to the grabbing position.

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