Automatic feeding equipment for motor rotor shaft

Abstract

The present invention discloses an automatic feeding device for a motor rotor shaft, which relates to the technical field of motor production equipment, including a fixed frame, a material storage mechanism, a material picking mechanism and a detection mechanism. The material storage mechanism includes a material storage frame, a material discharging portion and a first ejection assembly. The material storage frame is provided with a material discharging position. The first ejection assembly pushes the rotor shaft at the material discharging position onto the detection mechanism. A rotor shaft recovery box is provided below the detection mechanism. The material picking mechanism has an initial position and a receiving position. If the detection result is positive, the material picking mechanism moves to the receiving position, and the first ejection assembly pushes the rotor shaft on the detection mechanism onto the material picking mechanism. If the detection result is reverse, the material picking mechanism is located at the initial position, and the first ejection assembly pushes the rotor shaft on the detection mechanism into the rotor shaft recovery box. The present invention solves the problem of a high rate of motor rotor failure, reduces the risk of motor rotor failure due to incorrect rotor shaft direction, and reduces the rate of motor rotor failure during production and processing.

Description

Technical Field

[0001] The invention relates to the technical field of motor production equipment, and in particular to automatic feeding equipment for a motor rotor shaft. Background Art

[0002] A motor is an electromagnetic device that converts or transmits electrical energy according to the law of electromagnetic induction, or converts one form of electrical energy into another form of electrical energy. It consists of a stator, a rotor and other accessories. The rotor is used to cut the stator's rotating magnetic field to generate induced electromotive force and current, and form electromagnetic torque to rotate the motor. Most of the existing motor rotor structures are composed of an armature, a coil, a rotor shaft and other accessories, and the rotor shaft serves as a transmission structure. The rotor shaft is the core structure that connects the rotor components, usually made of metal materials such as steel or aluminum alloy. It is mainly used to support and connect other components on the rotor, and allows the rotor to rotate in the axial direction, playing a role in supporting and transmitting power.

[0003] During the mass production of motor rotors, a large number of finished rotor shafts will be stored in the storage bin. When the motor rotor is processed and produced, the rotor shaft needs to be taken out of the storage bin and transported to the next workbench and wait for die-casting. Since the rotor on the rotor shaft is formed by die-casting, a groove is generally provided on the rotor shaft, which can increase the connection strength between the die-cast rotor and the rotor shaft. The groove is provided on the circumferential side wall at one end of the rotor shaft, that is, the groove deviates from the middle position in the length direction of the rotor shaft. Therefore, in order to facilitate the subsequent processing of the rotor shaft, the transport component must be in the same direction from the end of the rotor shaft with the groove taken out from the storage bin, that is, the direction of the taken-out rotor shaft must be consistent. However, the rotor shaft may flip over during the process of placing it in the storage bin, and the operator may place it in the wrong direction when placing it one by one, causing the rotor shaft to change its position in the storage bin. As a result, when the rotor shaft is taken out of the storage bin, the direction of the rotor shaft may be inconsistent with the specified direction. Therefore, it is easy for the produced motor rotor to be unqualified due to the wrong rotor shaft direction, thereby increasing the unqualified rate in the production and processing of motor rotors. Summary of the invention

[0004] In order to overcome the disadvantage of high motor rotor rejection rate in the prior art, the present invention provides an automatic feeding device for motor rotor shaft, which reduces the risk of motor rotor rejection due to incorrect rotor shaft direction and reduces the rejection rate of motor rotors in production and processing.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A motor rotor shaft automatic feeding device, wherein one end of the rotor shaft is provided with a groove, and the device is characterized in that it comprises a fixed frame, a material storage mechanism, a material picking mechanism and a detection mechanism for detecting whether the rotor shaft is in a positive direction, wherein the material storage mechanism, the detection mechanism and the material picking mechanism are sequentially arranged on the fixed frame, the material storage mechanism comprises a material storage frame fixedly connected to the fixed frame, and a discharging portion and a first ejection assembly arranged on the material storage frame, the material storage frame is provided with a discharging position corresponding to the discharging portion, the first ejection assembly pushes the rotor shaft at the discharging position onto the detection mechanism, a rotor shaft recovery box is arranged below the detection mechanism, the material picking mechanism has an initial position and a receiving position corresponding to the detection mechanism, if the detection result of the detection mechanism is positive, the material picking mechanism moves to the receiving position, the first ejection assembly pushes the rotor shaft on the detection mechanism onto the material picking mechanism, if the detection result of the detection mechanism is reverse, the material picking mechanism is located at the initial position, and the first ejection assembly pushes the rotor shaft on the detection mechanism into the rotor shaft recovery box.

[0007] In the above technical scheme, the rotor shaft is stored in the material storage mechanism, the positive direction of the rotor shaft, that is, the groove of the rotor shaft is located at the end of the rotor shaft close to the material storage mechanism, and the reverse direction of the rotor shaft, that is, the groove of the rotor shaft is located at the end of the rotor shaft away from the material storage mechanism. The rotor shaft is detected by the detection mechanism, so that the positive rotor shaft can enter the material picking mechanism, and the reverse rotor shaft is dropped into the rotor shaft recovery box so that it cannot enter the material picking mechanism, so that the rotor shaft with the wrong direction is excluded by the detection mechanism before the rotor shaft is pushed to the material picking mechanism and cannot enter the material picking mechanism, that is, the directions of the rotor shafts taken out by the material picking mechanism are consistent and positive, thereby reducing the risk of unqualified motor rotors produced due to incorrect rotor shaft directions and reducing the unqualified rate of motor rotors in production and processing.

[0008] Preferably, the detection mechanism comprises a mounting frame arranged on the fixing frame, a clamping mechanism arranged on the mounting frame and used for clamping the rotor shaft and snapping it into the groove, and a detection sensor for detecting whether the rotor shaft exists on the mounting frame.

[0009] In the structure, the first ejection assembly pushes the rotor shaft at the discharge position onto the detection mechanism, that is, pushes the rotor shaft as a whole onto the mounting frame, and the first ejection assembly pushes the rotor shaft to a specified position on the mounting frame, and then the clamping mechanism clamps the rotor shaft after reaching the specified position. If the rotor shaft is in the forward direction, the clamping mechanism clamps the rotor shaft and snaps it into the groove of the rotor shaft; if the rotor shaft is in the reverse direction, since the position of the groove of the reverse rotor shaft is inconsistent with the position of the groove of the forward rotor shaft, the groove on the reverse rotor shaft will deviate from the specified position corresponding to the clamping mechanism, that is, the clamping mechanism will abut against the circumferential side wall of the reverse rotor shaft to clamp the rotor shaft, but will not snap into the groove of the rotor shaft; after the clamping mechanism clamps the rotor shaft, the first ejection assembly will apply a thrust to the rotor shaft on the mounting frame again, wherein since the clamping mechanism snaps into the groove of the forward rotor shaft, the clamping mechanism will apply a thrust to the groove wall of the groove to prevent the rotor shaft from slipping, and since the circumferential side wall of the rotor shaft is relatively smooth, The friction between the rotor shaft and the clamping mechanism is small, and the reverse rotor shaft will be pushed off the mounting frame, while the picking mechanism is at the initial position, that is, the reverse rotor shaft will fall into the rotor shaft recovery box; after the first ejection component has worked for a period of time, it reads the data of the detection sensor at this moment and feeds back the information to the picking mechanism, and if the detection transmission detects that there is a rotor shaft on the mounting frame at this moment, the picking mechanism will move from the initial position to the receiving position; if the detection transmission detects that there is no rotor shaft on the mounting frame at this moment, the picking mechanism will remain in the initial position; then the clamping of the clamping mechanism is canceled, and for the positive rotor shaft, the clamping mechanism no longer applies thrust to the groove wall of the groove, so that the first ejection component applies thrust to the rotor shaft again, thereby pushing the rotor shaft onto the picking mechanism, that is, pushing the positive rotor shaft onto the picking mechanism; wherein the rotor shaft in the wrong direction is automatically pushed into the rotor shaft recovery box by the cooperation between the clamping mechanism and the groove of the rotor shaft, without manual operation, thereby improving the convenience of equipment use. At the same time, detection sensors are used to transmit information to the material-reclaiming mechanism, reducing the situation where the material-reclaiming mechanism is empty, thereby reducing the ineffective work of the equipment and saving energy.

[0010] Preferably, the clamping mechanism includes a clamping drive assembly arranged on the mounting frame and a clamping assembly slidably connected to the mounting frame, the mounting frame is provided with a through hole, and a plurality of clamping assemblies are provided, and the plurality of clamping assemblies are circumferentially spaced along the through hole, the clamping mechanism has an unlocked state and a locked state, when the clamping mechanism is in the locked state, a plurality of the clamping assemblies clamp the rotor shaft and one of the clamping assemblies is stuck in the groove to limit the sliding of the rotor shaft relative to the mounting frame, when the clamping mechanism is in the unlocked state, a plurality of the clamping assemblies release the rotor shaft to allow the rotor shaft to slide relative to the mounting frame, and the clamping drive assembly can switch the clamping assembly between the unlocked state and the locked state by driving the clamping assembly to slide in a direction away from or close to the through hole.

[0011] In the structure, there are multiple clamping assemblies and they are arranged at intervals along the circumference of the through hole, thereby preventing the clamping assembly from being unable to be inserted into the groove due to the rotor shaft groove deviating from the clamping assembly, reducing the possibility that the rotor shaft with the correct direction cannot be pushed to the material picking mechanism due to the clamping assembly being unable to be inserted into the groove, and improving the accuracy of the detection mechanism.

[0012] Preferably, the clamping assembly includes a sliding frame, a sliding block and an elastic member arranged on the mounting frame, the sliding block is slidably connected to the sliding frame, the elastic member is located between the sliding frame and the sliding block and is used to make the sliding block extend in the direction of the through hole, when the clamping mechanism is in a locked state, several of the sliding blocks are in contact with the rotor shaft and one of the sliding blocks is stuck in the groove to limit the sliding of the rotor shaft relative to the mounting frame, and when the clamping assembly is in an unlocked state, there is a certain distance between several sliding blocks and the hole wall of the through hole so that the rotor shaft can slide relative to the mounting frame.

[0013] In the structure, the elastic member plays a certain guiding role in the sliding process of the sliding block, preventing the sliding path of the sliding block from deviating and affecting the clamping of the rotor shaft, thereby improving the stability of the equipment.

[0014] Preferably, four clamping assemblies are provided, and every two clamping assemblies arranged opposite to each other form a group to form a first assembly and a second assembly. When the clamping assemblies are in an unlocked state, the distance between one end of the sliding block in the first assembly close to the through hole and the wall of the through hole is S1, and the distance between one end of the sliding block in the second assembly close to the through hole and the wall of the through hole is S2, S1<S2, and when the sliding block in the second assembly contacts the rotor shaft, the elastic force of the elastic member in the second assembly is F1, and the elastic force of the elastic member in the first assembly is F2, and F1>F2.

[0015] In the structure, if the angle of the groove of the forward rotor shaft deviates from the clamping assembly, when the clamping mechanism is used to clamp the rotor shaft, the clamping mechanism is switched from an unlocked state to a locked state. During this process, since S1 is smaller than S2, the sliding block in the first assembly will first abut against the circumferential side wall of the rotor shaft, and one of the sliding blocks will be partially located at the notch of the groove of the rotor shaft. Then, when the sliding block in the second assembly abuts against the circumferential side wall of the rotor shaft, one of the sliding blocks will also be partially located at the notch of the groove. Since F1 is larger than F2 and the surface of the rotor shaft is smooth, the sliding block in the second assembly will push the rotor shaft to rotate until the corresponding sliding block in the second assembly is stuck in the groove, thereby clamping the forward rotor shaft and limiting the slippage of the forward rotor shaft relative to the mounting frame, reducing the possibility that the clamping assembly cannot be stuck in the groove, resulting in the rotor shaft with the correct direction being unable to be pushed to the material picking mechanism, and improving the accuracy of the detection mechanism.

[0016] Preferably, the clamping drive assembly includes a rotating frame rotatably connected to the mounting frame and a rotating drive member arranged on the mounting frame and used to drive the rotating frame to rotate, the rotating frame is provided with a plurality of arc grooves, and the clamping assembly is fixedly connected with a guide member for extending into the corresponding arc grooves, and the arc groove is eccentrically arranged relative to the rotating axis of the rotating frame, so that when the rotating frame rotates relative to the mounting frame, the guide member moves in a direction away from or close to the through hole under the guiding action of the arc groove.

[0017] In the structure, the arc groove is eccentrically arranged relative to the rotating shaft of the rotating frame, so the distances between the two ends of the arc groove and the axis of the rotating shaft are different. When the clamping assembly needs to be rotated in the direction of approaching or moving away from the through hole, the rotating driving member drives the rotating frame to rotate relative to the mounting frame, so that the guide member moves away from or close to the through hole under the guiding action of the arc groove, wherein the guide member is installed on the corresponding clamping assembly, thereby realizing the simultaneous movement of multiple clamping assemblies in the direction of moving away from or close to the through hole, that is, the movement of multiple clamping assemblies is realized by driving the rotating frame to rotate by the rotating driving member, and there is no need to drive the clamping assemblies one by one, which is convenient and quick to operate, and improves the convenience of using the equipment. At the same time, only one power source, the rotating driving member, is used, which reduces the use cost of the equipment.

[0018] Preferably, the material picking mechanism includes a mobile frame slidably connected to the fixed frame, a mobile component arranged on the fixed frame and used to drive the mobile frame to translate, and a vacuum negative pressure component, a second ejection component and at least one hollow tube arranged on the mobile frame, one end of the hollow tube faces the, the second ejection component is arranged at the other end of the hollow tube and is used to eject the rotor shaft in the hollow tube, and the vacuum negative pressure component is communicated with the inner cavity in the hollow tube to generate negative pressure in the inner cavity.

[0019] In the structure, when the positive rotor shaft is pushed onto the detection mechanism, that is, the detection result is qualified, the moving component drives the moving frame to translate, so that one of the hollow tubes moves to the receiving position, and then the first ejection component applies a thrust to the rotor shaft to move toward the hollow tube, and at the same time, the vacuum negative pressure component generates a negative pressure in the inner cavity of the hollow tube so that the inner cavity of the hollow tube generates suction on the rotor shaft due to the pressure difference, so that the rotor shaft moves as a whole from the detection mechanism to the inner cavity of the hollow tube. The use of the vacuum negative pressure component to generate a negative pressure in the inner cavity of the hollow tube increases the probability of the rotor shaft entering the hollow tube completely, and prevents the risk that the first ejection component has a small thrust on the rotor shaft, resulting in a partial area of ​​the rotor shaft not entering the hollow tube, thereby reducing the risk of the hollow tube being empty and affecting the transportation efficiency of the rotor shaft and the risk of the rotor shaft not being successfully removed and affecting subsequent processing, and improving the stability of the equipment.

[0020] Preferably, the material storage mechanism also includes a material storage bin, a lifting platform and a first lifting drive member arranged on the material storage rack, the height of the discharge position is higher than the outlet end of the material storage bin, the lifting platform is arranged between the outlet end and the discharge position, the lifting platform has a first position corresponding to the outlet end and a second position corresponding to the discharge position, and the first lifting drive member can drive the lifting platform to switch between the first position and the second position so that the rotor shaft on the lifting platform enters the discharge position.

[0021] In the structure, during the batch production of motor rotors, a large number of finished rotor shafts will be stored in the storage bin. When the motor rotors are processed and produced, each rotor shaft needs to be processed separately. In order to prevent the produced motor rotors from being unqualified, the rotor shafts need to be taken out of the storage bin one by one. When this equipment is used for material collection and feeding, a large number of rotor shafts are stacked in the storage bin. Under the action of the gravity of the rotor shafts, the other rotor shafts will apply thrust to the rotor shafts at the outlet, so that the rotor shafts move out of the storage bin through the outlet at the outlet end. At the first time, the lifting platform is located at the first position corresponding to the outlet end, and one of the rotor shafts moved out of the outlet will move to the lifting platform, and the other rotor shafts are located outside the lifting platform. The height of the discharge position is higher than the outlet end. The first position corresponds to the outlet end, and the second position corresponds to the discharge position. Therefore, the first position is higher than the second position. Then, the first lifting drive member drives the lifting platform to rise and switch it from the first position to the second position. The second position corresponds to the discharge position, so that the rotor shaft located on the lifting platform enters the feeding station. Then, the first lifting drive member drives the lifting platform to rise and switch it from the first position to the second position. The second position corresponds to the discharge position, so that the rotor shaft located on the lifting platform enters the feeding station. The ejection component pushes the rotor shaft in the discharge position to the detection mechanism or the material picking mechanism, and the material picking mechanism transports the qualified rotor shaft to the next processing position, that is, a qualified rotor shaft is taken out from the storage mechanism, and then the first lifting drive drives the lifting platform to descend to switch it from the second position to the first position. Since the lifting platform is in an unloaded state at this time, the rotor shaft at the other outlet end moves to the unloaded lifting platform under the thrust between the rotor shafts, and the first lifting drive drives the lifting platform to rise again to switch it from the first position to the second position, so that the rotor shaft located on the lifting platform enters the discharge position, and the first ejection component pushes the rotor shaft in the discharge position to the detection mechanism or the material picking mechanism again, and this cycle is repeated, thereby realizing the removal of the rotor shafts one by one. The rotor shafts are transported to the discharging position one by one by switching the position of the lifting platform, and then the rotor shafts are pushed out of the storage mechanism one by one by the first ejection assembly, ensuring that the first ejection assembly applies thrust to only one rotor shaft at a time to eject it out of the storage mechanism, thereby improving the accuracy of taking the rotor shaft and reducing the risk of unqualified motor rotors produced, thereby reducing the unqualified rate of motor rotors in production and processing.

[0022] Preferably, the lifting platform is provided with a support area, the support area is opened on a side facing the outlet end, and the bottom height of the support area decreases from a side close to the outlet end to a side away from the outlet end.

[0023] In the structure, the side of the support area facing the outlet end is open, so that when the lifting platform is in the first position, the rotor shaft enters the support area through the side of the support area facing the outlet end, and the bottom surface height of the support area decreases from the side close to the outlet end to the side far from the outlet end, so that the rotor shaft moves from the side of the support area close to the outlet end to the side of the support area far from the outlet end under the action of its own gravity, reducing the risk of the rotor shaft falling back to the outlet end from the lifting platform due to the rotor shaft being at the edge of the support area, reducing the risk of the lifting platform being empty, preventing the lifting platform from being empty and affecting the equipment's material collection efficiency for the rotor shaft, and improving the stability of the equipment.

[0024] Preferably, a buffer table is provided at the outlet end, wherein the buffer table is located between the lifting platform and the outlet end and is liftably arranged on the storage rack, and the buffer table is provided with a buffer zone, and the buffer zone is open on a first side toward the outlet end and a second side toward the lifting platform, and the bottom height of the buffer zone decreases from the first side to the second side, and the buffer table has a third position and a fourth position, and when the buffer table is in the third position, the bottom height of the first side is lower than the bottom height of the outlet end, and when the buffer table is in the fourth position and the lifting platform is in the first position, the bottom height of the second side is higher than the bottom height of the lifting platform, and the storage rack is provided with a second lifting drive member for driving the buffer table to switch between the third position and the fourth position.

[0025] In the structure, when the rotor shaft is discharged from the storage bin from the outlet at the outlet end, when the buffer table is in the third position, the bottom surface height of the first side is lower than the height of the outlet end, wherein the bottom surface height of the buffer zone decreases from the first side to the second side, so that the rotor shafts of multiple outlet ends move from the outlet end to the buffer zone, and after reaching the buffer zone, move from the first side of the buffer zone to the second side until the buffer zone is fully covered, and then the second lifting drive member drives the buffer table to switch from the third position to the fourth position, and when the buffer table is in the fourth position, the bottom surface height of the second side is higher than the bottom surface height when the lifting table is in the first position, so that the rotor shaft closest to the lifting table on the buffer zone moves to the lifting table in the first position, and then the lifting table is driven by the first lifting drive member to switch from the first position to the second position to transport the rotor shaft to the discharge position , and finally, the rotor shaft is ejected out of the detection mechanism or the storage mechanism through the first ejection component, and then the first lifting drive drives the unloaded lifting platform to switch from the second position to the first position, and another rotor shaft on the buffer zone moves to the lifting platform again, and then the lifting platform transports the rotor shaft to the discharge position and realizes the ejection of the rotor shaft through the first ejection component, and this cycle is repeated until the last rotor shaft on the buffer platform moves to the unloaded lifting platform, at this time, the first drive lifting component drives the lifting platform to switch positions, and the second drive lifting component drives the unloaded buffer platform to switch from the fourth position to the third position, so that the rotor shaft at the outlet end enters the buffer zone again, and after the rotor shaft fills the buffer zone, the second lifting drive drives the buffer platform to switch from the third position to the fourth position, so as to realize the ejection of the rotor shafts one by one through this cycle. A buffer table is used to transport multiple rotor shafts from the third position to the fourth position and then enter the lifting platform one by one, thereby realizing the synchronous movement of multiple rotor shafts in part of the time and shortening the distance required between the first position and the second position of the lifting platform, that is, shortening the time required for the lifting platform to switch from the first position to the second position, and the switching of the lifting platform position and the switching of the buffer table position can be carried out synchronously, thereby shortening the time required to remove a large number of rotor shafts and improving the efficiency of the equipment in removing the rotor shafts.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The detection mechanism can eliminate the rotor shaft with the wrong direction before it is pushed to the material-retrieving mechanism, and prevent it from entering the material-retrieving mechanism, thereby reducing the risk of unqualified motor rotors produced due to wrong rotor shaft direction, and reducing the unqualified rate of motor rotors in production and processing;

[0028] 2. The rotor shaft with the wrong direction will automatically fall into the rotor shaft recovery box by cooperating the clamping mechanism with the groove of the rotor shaft or using a recovery robot arm, without the need to manually remove the rotor shaft with the wrong direction from the detection mechanism, thus improving the convenience of using the equipment;

[0029] 3. It reduces the possibility that the clamping assembly cannot be inserted into the groove, resulting in the rotor shaft with the correct direction being unable to be pushed to the material taking mechanism, and improves the accuracy of the detection mechanism;

[0030] 4. The rotating frame is driven by the rotating driving member to rotate to realize the movement of multiple clamping components. There is no need to drive the clamping components one by one. The operation is convenient and fast, which improves the convenience of equipment use.

[0031] 5. It ensures that the first ejection component applies thrust to only one rotor shaft at a time to eject it from the storage mechanism, thereby improving the accuracy of taking the rotor shaft and reducing the risk of unqualified motor rotors produced, thereby reducing the unqualified rate of motor rotors during production and processing;

[0032] 6. The setting of the buffer table shortens the time required to remove a large number of rotor shafts and improves the efficiency of the equipment in removing rotor shafts. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application;

[0034] Figure 2 It is an enlarged structural diagram of point A of Example 1 of the present application;

[0035] Figure 3 This is a schematic diagram of the forward rotor shaft structure of the present application;

[0036] Figure 4 This is a schematic diagram of the reverse rotor shaft structure of the present application;

[0037] Figure 5 is a schematic diagram of the structure of the clamping assembly when the clamping mechanism of Example 2 of the present application does not clamp the rotor shaft;

[0038] Figure 6 is a schematic diagram of the rotating frame structure when the clamping mechanism of Example 2 of the present application does not clamp the rotor shaft;

[0039] Figure 7 is a schematic diagram of the structure of the clamping assembly when the clamping mechanism of Example 2 of the present application clamps the rotor shaft in the forward direction;

[0040] Figure 8 is a schematic diagram of the rotating frame structure when the clamping mechanism of Example 2 of the present application clamps the positive rotor shaft;

[0041] Fig. 9 is a schematic diagram of the structure of the clamping assembly when the clamping mechanism of Example 2 of the present application clamps the rotor shaft in the opposite direction;

[0042] Fig.10It is a structural schematic diagram of the material storage mechanism when the lifting platform of Example 3 of the present application is in the first position;

[0043] Fig.11 It is a structural schematic diagram of the material storage mechanism when the lifting platform of Example 3 of the present application is in the second position;

[0044] Fig.12 It is a schematic diagram of the structure of the discharge platform of Example 4 of the present application;

[0045] Fig.13 is a schematic diagram of the structure of the material storage mechanism when the buffer table of Example 5 of the present application is in the fourth position;

[0046] Fig.14 is a schematic structural diagram of the material storage mechanism when the buffer table of Example 5 of the present application is in the third position;

[0047] Fig.15 This is an enlarged structural diagram of point B of Example 6 of the present application.

[0048] Description of the accompanying drawings: 1. rotor shaft; 2. fixed frame; 3. material storage mechanism; 4. material taking mechanism; 5. detection mechanism; 6. rotor shaft recovery box; 7. clamping drive assembly; 8. clamping assembly; 11. groove; 31. material storage rack; 32. material discharging part; 33. first ejection assembly; 34. material storage bin; 35. lifting platform; 41. moving frame; 42. moving assembly; 43. hollow tube; 51. mounting frame; 52. clamping mechanism; 53. detection sensor; 71. rotating frame; 72. rotating drive member; 81. sliding frame; 82. sliding block; 83. elastic member; 84. first assembly; 8 5. Second component; 311. Positioning side wall; 312. Discharging platform; 313. Buffer platform; 314. First sensor; 321. Discharging hole; 331. First telescopic driving member; 332. Second telescopic driving member; 341. Storage port; 342. Upper cover; 343. Exit end; 351. Support area; 511. Through hole; 512. Sliding groove; 531. Laser receiving end; 532. Laser emitting end; 711. Arc groove; 811. Guide member; 3131. Buffer zone; 3132. First side; 3133. Second side; 5121. Guide groove; 8111. Guide rod. DETAILED DESCRIPTION

[0049] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0050] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0051] The terms "first", "second", etc. (if any) in the specification and claims of the present invention are used to distinguish similar objects, rather than to describe a specific order or sequence. Even if "second" is used to distinguish before a certain technical feature, it does not necessarily indicate that "first" is present. It should be understood that in the present invention, "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. It should be understood that in the present invention, "multiple" refers to two or more. "And / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. "Containing X, Y and Z" "Containing X, Y, Z" means that X, Y, and Z are all included, "Containing X, Y or Z" means that one of X, Y, and Z is included, and "Containing X, Y and / or Z" means that any one, any two, or three of X, Y, and Z are included.

[0052] The technical solution of the present invention is described in detail with specific embodiments below. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0053] Embodiment 1:

[0054] Embodiment 1 of the present application discloses an automatic feeding device for a motor rotor shaft.

[0055] Reference Figure 1 and Figure 2 , an automatic feeding device for a motor rotor shaft 1, a groove 11 is provided at one end of the rotor shaft 1, comprising a fixing frame 2, a material storage mechanism 3, a material taking mechanism 4 and a detection mechanism 5 for detecting whether the rotor shaft 1 is in a positive direction. The material storage mechanism 3, the detection mechanism 5 and the material taking mechanism 4 are sequentially mounted on the fixing frame 2.

[0056] Reference Figure 1 and Figure 2 The material storage mechanism 3 includes a material storage rack 31 fixedly connected to the fixed frame 2, and a discharge portion 32 and a first ejection assembly 33 installed on the material storage rack 31. The material storage rack 31 has a discharge position corresponding to the discharge portion 32. The first ejection assembly 33 pushes the rotor shaft 1 at the discharge position to the detection mechanism 5. A rotor shaft 1 recovery box is installed under the detection mechanism 5.

[0057] Reference Figure 1 and Figure 2The material taking mechanism 4 has an initial position and a receiving position corresponding to the detection mechanism 5. If the detection result of the detection mechanism 5 is positive, the material taking mechanism 4 moves to the receiving position, and the first ejection component 33 pushes the rotor shaft 1 on the detection mechanism 5 onto the material taking mechanism 4. If the detection result of the detection mechanism 5 is negative, the material taking mechanism 4 is at the initial position, and the first ejection component 33 pushes the rotor shaft 1 on the detection mechanism 5 into the rotor shaft 1 recovery box. The initial position is the position where the material taking mechanism 4 cannot receive the rotor shaft 1 on the detection mechanism 5.

[0058] Reference Figure 3 and Figure 4 The material-collecting mechanism 4 is located on the left side of the rotor shaft 1. The first ejection assembly 33 pushes the rotor shaft 1 from left to right onto the detection mechanism 5. The forward rotor shaft 1 has a groove 11 located on the side of the rotor shaft 1 close to the material-collecting mechanism 4. The reverse rotor shaft 1 has a groove 11 located on the side of the rotor shaft 1 away from the material-collecting mechanism 4.

[0059] The implementation principle of the motor rotor shaft automatic feeding device in Example 1 of the present application is as follows:

[0060] The rotor shaft 1 is stored in the storage mechanism 3. The rotor shaft 1 is in the forward direction, that is, the groove 11 of the rotor shaft 1 is located at the end of the rotor shaft 1 close to the storage mechanism 3. The rotor shaft 1 is in the reverse direction, that is, the groove 11 of the rotor shaft 1 is located at the end of the rotor shaft 1 away from the storage mechanism 3. The first ejection component 33 pushes the rotor shaft 1 at the discharge position onto the detection mechanism 5 as a whole, and pushes it to the corresponding position on the detection mechanism 5. The rotor shaft 1 is detected by the detection mechanism 5 and the information is fed back to the material picking mechanism 4. If the rotor shaft 1 is in the forward direction, the material picking mechanism 4 moves to the receiving position, and the first ejection component 33 pushes the rotor shaft 1 on the detection mechanism 5 to the material picking mechanism 4, that is, the forward direction The rotor shaft 1 can enter the material taking mechanism 4. If the rotor shaft 1 is in the opposite direction, the material taking mechanism 4 remains in the initial position, and the first ejection component 33 pushes the rotor shaft 1 on the detection mechanism 5 into the rotor shaft 1 recovery box, so that the reverse rotor shaft 1 cannot enter the material taking mechanism 4, that is, the detection mechanism 5 excludes the rotor shaft 1 with the wrong direction before the rotor shaft 1 is pushed to the material taking mechanism 4 and cannot enter the material taking mechanism 4, that is, the direction of the rotor shaft 1 taken out by the material taking mechanism 4 is consistent and positive, which reduces the risk of unqualified motor rotors produced due to the wrong direction of the rotor shaft 1, and reduces the unqualified rate of motor rotors in production and processing.

[0061] Reference Figure 1 The discharge portion 32 is a discharge hole 321 opened on the storage rack 31 and corresponding to the material taking mechanism 4, and the discharge position is the position where the first ejection assembly 33 in the storage rack 31 can push the rotor shaft 1 out of the storage mechanism 3 through the discharge hole 321.

[0062] Reference Figure 2The first ejection assembly 33 includes a first telescopic drive member 331, a second telescopic drive member 332 and an ejection shaft. The second telescopic drive member 332 is installed at the telescopic end of the first telescopic drive member 331, and the ejection shaft is installed at the telescopic end of the second telescopic drive member 332. The material picking mechanism 4 is located on one side of the material discharging position, and the first ejection assembly 33 is located on the other side of the material discharging position and is used to push the rotor shaft 1 in the material discharging position to the detection mechanism 5 or the material picking mechanism 4. The first telescopic drive member 331 and the second telescopic drive member 332 both adopt conventional driving cylinders, one end of the piston rod of the second telescopic drive member 332 is fixedly connected to the ejection shaft, and the other end is fixedly connected to one end of the piston rod of the first telescopic drive member 331, and the other end of the first telescopic drive member 331 is fixedly connected to the material storage rack 31. When the first ejection assembly 33 pushes the rotor shaft 1 at the discharge position to the detection mechanism 5, the second telescopic driving member 332 extends, so that the ejection shaft moves in the opposite direction of the rotor shaft 1 near the discharge position, and applies a thrust to the rotor shaft 1 to push it onto the detection mechanism 5; when the first ejection assembly 33 needs to push the rotor shaft 1 on the detection mechanism 5 to the picking mechanism 4 or the rotor shaft 1 recovery box, the first telescopic driving member 331 extends, so that the ejection shaft applies a thrust to the rotor shaft 1 on the detection mechanism 5 again, so that it is pushed to the picking mechanism 4 or the rotor shaft 1 recovery box. In order to ensure that the rotor shaft 1 can be pushed to the specified position on the detection mechanism 5, the extension rate of the second telescopic drive member 332 is relatively slow, that is, the ejector shaft will slowly push the rotor shaft 1 to make it enter the detection mechanism 5, and there is friction between the rotor shaft 1 and the detection mechanism 5 when the rotor shaft 1 is pushed onto the detection mechanism 5. By slowly sliding the rotor shaft 1 onto the detection mechanism 5, the inertia force of the rotor shaft 1 is smaller than the friction force it is subjected to, thereby reducing the risk of the rotor shaft 1 deviating from the specified position due to inertia and improving the accuracy of equipment use.

[0063] Embodiment 2:

[0064] This application is based on Example 1:

[0065] Reference Figure 5 and Figure 6 The detection mechanism 5 includes a mounting frame 51 fixedly connected to the fixing frame 2, a clamping mechanism 52 installed on the mounting frame 51 and used to clamp the rotor shaft 1 and snap into the groove 11 on the rotor shaft 1, and a detection sensor 53 for detecting whether the rotor shaft 1 exists on the mounting frame 51.

[0066] Reference Figure 5 and Figure 6The clamping mechanism 52 includes a clamping drive assembly 7 installed on the mounting frame 51 and a clamping assembly 8 slidably connected to the mounting frame 51. The mounting frame 51 is provided with a through hole 511. There are four clamping assemblies 8, and the four clamping assemblies 8 are arranged circumferentially along the through hole 511. The clamping mechanism 52 has an unlocked state and a locked state. When the clamping mechanism 52 is in the locked state, the four clamping assemblies 8 clamp the rotor shaft 1 and one of the clamping assemblies 8 is inserted into the groove 11 to limit the sliding of the rotor shaft 1 relative to the mounting frame 51. When the clamping mechanism 52 is in the unlocked state, the four clamping assemblies 8 all release the rotor shaft 1 so that the rotor shaft 1 can slide relative to the mounting frame 51. The clamping drive assembly 7 can drive the clamping assembly 8 to slide in a direction away from or close to the through hole 511 to achieve the switching between the unlocked state and the locked state of the clamping mechanism 52. Figure 5 and Figure 6 The mounting frame 51 is provided with a sliding groove 512 connected to the through hole 511. The clamping assembly 8 includes a sliding frame 81, a sliding block 82 and an elastic member 83 which are slidably connected in the sliding groove 512. The sliding block 82 is slidably connected to the sliding frame 81. The elastic member 83 is located between the sliding frame 81 and the sliding block 82 and is used to make the sliding block 82 extend in the direction of the through hole 511. The elastic member 83 adopts a conventional compression spring. One end of the elastic member 83 is fixedly connected to the sliding frame 81, and the other end is fixedly connected to the sliding block 82.

[0067] Reference Figure 5 and Figure 6 When the clamping mechanism 52 is in a locked state, the four sliding blocks 82 all contact the rotor shaft 1 and one of the sliding blocks 82 is inserted into the groove 11 to limit the sliding of the rotor shaft 1 relative to the mounting frame 51. When the clamping assembly 8 is in an unlocked state, there is a certain distance between the four sliding blocks 82 and the hole wall through the hole 511 so that the rotor shaft 1 can slide relative to the mounting frame 51.

[0068] Reference Figure 5 and Figure 6 The detection sensor 53 includes a laser receiving end 531 and a laser emitting end 532. The laser receiving end 531 and the laser emitting end 532 are both mounted on the mounting frame 51 and are respectively located on opposite sides of the through hole 511. That is, when the rotor shaft 1 is located on the mounting frame 51, that is, when the rotor shaft 1 is inserted into the through hole 511, the rotor shaft 1 will block the laser emitting end 532 from emitting laser, thereby hindering the propagation of the laser, so that the laser receiving end 531 cannot receive the laser. When the rotor shaft 1 is not located on the mounting frame 51, the laser emitting end 532 will not be blocked from emitting laser, so that the laser receiving end 531 can receive the laser, so that the detection sensor 53 can judge whether there is a rotor shaft 1 on the mounting frame 51 at this moment.

[0069] The implementation principle of the motor rotor shaft automatic feeding device in Example 2 of the present application is as follows:

[0070] When the second telescopic driving member 332 is extended to push the rotor shaft 1 at the discharge position onto the detection mechanism 5 as a whole, that is, to push the rotor shaft 1 onto the mounting frame 51 as a whole, and push the rotor shaft 1 to the designated position on the mounting frame 51 corresponding to the clamping mechanism 52, and then after reaching the designated position, the clamping mechanism 52 clamps the rotor shaft 1, even if the clamping driving component 7 drives the clamping component 8 to slide in the direction close to the through hole 511 to switch the clamping mechanism 52 from the unlocked state to the locked state, if the rotor shaft 1 is in the forward direction, the four sliding blocks 82 all contact with the rotor shaft 1 and one of the sliding blocks 82 is stuck in the groove 11 to limit the slippage of the rotor shaft 1 relative to the mounting frame 51; if the rotor shaft 1 is in the reverse direction, due to the groove 11 of the reverse rotor shaft 1 and the forward direction The positions of the grooves 11 of the rotor shaft 1 are inconsistent, so the grooves 11 on the reverse rotor shaft 1 will deviate from the specified position of the clamping mechanism 52, that is, each sliding block 82 will abut against the circumferential side wall of the reverse rotor shaft 1 to clamp the rotor shaft 1, but will not be stuck in the grooves 11 of the rotor shaft 1; after the clamping mechanism 52 clamps the rotor shaft 1, the first ejection assembly 33 will again apply a thrust to the rotor shaft 1 on the mounting frame 51, that is, the first telescopic driving member 331 is extended, and since one of the sliding blocks 82 is stuck in the groove 11 of the forward rotor shaft 1, the sliding block 82 will apply a thrust to the groove wall of the groove 11 to prevent the rotor shaft 1 from slipping, and since the circumferential side wall of the rotor shaft 1 is relatively smooth, the rotor shaft 1 and the sliding blocks 8 2, the friction between them is small, the reverse rotor shaft 1 will be pushed off the mounting frame 51, and at this time the picking mechanism 4 is in the initial position, even if the reverse rotor shaft 1 will fall into the rotor shaft 1 recovery box; after a period of time after the first telescopic drive member 331 acts, it is ensured that the reverse rotor shaft 1 falls into the rotor shaft 1 recovery box, reads the data of the detection sensor 53 at this moment and feeds back the information to the picking mechanism 4, if the rotor shaft 1 is in the reverse direction, the detection transmission device will detect that the rotor shaft 1 does not exist on the mounting frame 51 at this moment, and the picking mechanism 4 will remain in the initial position; if the rotor shaft 1 is in the forward direction, the detection transmission device will detect that the rotor shaft 1 exists on the mounting frame 51 at this moment, and the picking mechanism 4 will move from the initial position to the receiving position; then the clamping drive assembly 7 drives the clamping The component 8 moves in a direction away from the through hole 511 to switch the clamping mechanism 52 from a locked state to an unlocked state, thereby canceling the clamping of the rotor shaft 1. For the positive rotor shaft 1, the sliding block 82 is no longer stuck in the groove 11, that is, the sliding block 82 no longer applies a thrust to the groove wall of the groove 11, so that the first telescopic driving member 331 can be extended, thereby applying a thrust to the rotor shaft 1 again. Since the material picking mechanism 4 has moved to the receiving position, the rotor shaft 1 is pushed onto the material picking mechanism 4, that is, the positive rotor shaft 1 is pushed onto the material picking mechanism 4; wherein the clamping mechanism 52 cooperates with the groove 11 of the rotor shaft 1 so that the rotor shaft 1 in the wrong direction will be automatically pushed into the rotor shaft 1 recovery box without manual operation, thereby improving the convenience of using the equipment.At the same time, the number of the clamping assemblies 8 is four and they are arranged at intervals along the circumference of the through hole 511, thereby preventing the clamping assembly 8 from being unable to be inserted into the groove 11 due to the deviation of the groove 11 of the rotor shaft 1 from the clamping assembly 8, reducing the possibility that the rotor shaft 1 with the correct direction cannot be pushed to the material taking mechanism 4 due to the inability of the clamping assembly 8 to be inserted into the groove 11, and improving the accuracy of the use of the detection mechanism 5. In addition, the elastic member 83 plays a certain guiding role in the sliding process of the sliding block 82, preventing the sliding path of the sliding block from deviating and affecting the clamping of the rotor shaft 1, and improving the stability of the equipment.

[0071] In order to prevent the sliding block 82 from abutting against the rotor shaft 1 and causing damage to the rotor shaft 1 , the sliding block 82 is made of soft metal materials such as copper to reduce the risk of the sliding block 82 abutting against the rotor shaft 1 and causing damage to the rotor shaft 1 .

[0072] Reference Figure 7 , Figure 8 and Fig. 9Further, the clamping drive assembly 7 includes a rotating frame 71 rotatably connected to the mounting frame 51 and a rotating driving member 72 mounted on the mounting frame 51 and used to drive the rotating frame 71 to rotate. The rotating frame 71 is provided with a plurality of arc grooves 711 corresponding to the sliding blocks 82. The sliding frame 81 is fixedly connected with a guide member 811 for extending into the corresponding arc groove 711. The guide member 811 is a guide rod 8111 penetrating the sliding frame 81. The groove wall of the sliding groove 512 is provided with a guide groove 5121 corresponding to the sliding blocks. One end of the guide rod 8111 is slidably connected in the arc groove 711, and the other end is slidably connected in the guide groove 5121. The rotating driving member 72 adopts a conventional driving cylinder, and one end of the rotating driving member 72 is hinged on the mounting frame 51, and the other end is hinged on the rotating frame 71. The extension direction of the guide groove 5121 is the extension direction of the aperture of the through hole 511. The arc groove 711 is eccentrically arranged relative to the rotation axis of the rotating frame 71, so that when the rotating frame 71 rotates relative to the mounting frame 51, the guide rod 8111 moves in a direction away from or close to the through hole 511 under the guidance of the arc groove 711. The arc groove 711 is eccentrically arranged relative to the rotation axis of the rotating frame 71, so the distances between the two ends of the arc groove 711 and the axis of the rotation axis are different. When it is necessary to rotate the sliding block 82 in a direction close to or away from the through hole 511, the rotating driving member 72 is extended to drive the rotating frame 71 to rotate relative to the mounting frame 51, and the arc groove 711 applies a thrust to the guide rod 8111 to make the guide rod 8111 slide. Since the other end of the guide rod 8111 is slidably connected in the guide groove 5121, the extension direction of the guide groove 5121 is The direction is the extension direction of the aperture of the through hole 511, that is, the groove wall of the guide groove 5121 will limit the sliding direction of the guide rod 8111, so that multiple guide rods 8111 move in the direction away from or close to the through hole 511 at the same time, that is, multiple sliding blocks move in the direction away from or close to the through hole 511 at the same time, that is, the rotation of the rotating frame 71 driven by the rotating driving member 72 realizes the movement of multiple clamping assemblies 8, and there is no need to drive the clamping assemblies 8 one by one, which is convenient and fast to operate, and improves the convenience of using the equipment. At the same time, only one power source, the rotating driving member 72, is used, which reduces the use cost of the equipment.

[0073] Reference Figure 5 and Figure 6Preferably, every two clamping assemblies 8 arranged opposite to each other form a group to form a first assembly 84 and a second assembly 85. When the clamping assembly 8 is in an unlocked state, the distance between the end of the sliding block 82 in the first assembly 84 close to the through hole 511 and the wall of the through hole 511 is S1, and the distance between the end of the sliding block 82 in the second assembly 85 close to the through hole 511 and the wall of the through hole 511 is S2, S1<S2, when the sliding block 82 in the second assembly 85 abuts against the circumferential side wall of the rotor shaft 1, the elastic force of the elastic member 83 in the second assembly 85 is F1, and the elastic force of the elastic member 83 in the first assembly 84 is F2, F1>F2. If the angle of the groove 11 of the positive rotor shaft 1 deviates from the clamping assembly 8, when the clamping mechanism 52 is used to clamp the rotor shaft 1, the clamping mechanism 52 is switched from the unlocked state to the locked state. In this process, since S1 is less than S2, the sliding blocks 82 in the first assembly 84 will first abut against the circumferential side wall of the rotor shaft 1, and one of the sliding blocks 82 is partially located at the notch of the groove 11 of the rotor shaft 1. Then, when the sliding blocks 82 in the second assembly 85 abut against the circumferential side wall of the rotor shaft 1, one of the sliding blocks 82 is locked. 2 is also partially located at the notch of the groove 11. Since F1 is greater than F2 and the surface of the rotor shaft 1 is smooth, the sliding block 82 in the second component 85 will push the rotor shaft 1 to rotate until the corresponding sliding block 82 in the second component 85 is inserted into the groove 11, thereby clamping the forward rotor shaft 1 and limiting the sliding of the forward rotor shaft 1 relative to the mounting frame 51, reducing the possibility that the clamping component 8 cannot be inserted into the groove 11 and the rotor shaft 1 with the correct direction cannot be pushed to the material taking mechanism 4, thereby improving the accuracy of the detection mechanism 5.

[0074] Furthermore, in the process of switching the clamping mechanism 52 from the unlocked state to the locked state, F1 is always greater than F2, thereby ensuring that the sliding block 82 in the second component 85 can push the rotor shaft 1 clamped by the sliding block 82 in the first component 84, reducing the possibility that the clamping component 8 cannot be inserted into the groove 11, resulting in the rotor shaft 1 with the correct direction cannot be pushed onto the material picking mechanism 4, and further improving the accuracy of the use of the detection mechanism 5.

[0075] Embodiment 3:

[0076] Based on Example 1:

[0077] Reference Fig.10 and Fig.11The storage mechanism 3 also includes a storage bin 34, a lifting platform 35 and a first lifting drive installed on the storage rack 31. The height of the discharge position is higher than the bottom height of the outlet end 343 of the storage bin 34. The lifting platform 35 is located between the discharge position and the outlet end 343. The lifting platform 35 has a first position corresponding to the outlet end 343 and a second position corresponding to the discharge position. The first lifting drive drives the lifting platform 35 to switch between the first position and the second position so that the rotor shaft 1 on the lifting platform 35 enters the discharge position. The first lifting drive adopts a conventional driving cylinder. One end of the piston rod of the first lifting drive is fixedly connected to the lifting platform 35 and the other end is fixedly connected to the storage rack 31. The material taking mechanism 4 is located on one side of the discharge position, and the first ejection assembly 33 is located on the other side of the discharge position.

[0078] The implementation principle of the motor rotor shaft automatic feeding device in Example 3 of the present application is as follows:

[0079] When the device is used for material retrieving and feeding, a large number of rotor shafts 1 are stacked in the storage bin 34. Under the action of the gravity of the rotor shaft 1, the other rotor shafts 1 will apply thrust to the rotor shaft 1 at the outlet end 343, so that the rotor shaft 1 moves out of the storage bin 34 through the outlet of the outlet end 343. At the first time, the lifting platform 35 is located at the first position corresponding to the outlet end 343, and one of the rotor shafts 1 moved out of the outlet will move onto the lifting platform 35, and the other rotor shafts 1 are located outside the lifting platform 35. The height of the discharge position is higher than the outlet end 343. The first position corresponds to the outlet end 343, and the second position corresponds to the discharge position. Therefore, the first position is higher than the second position. Then, the first lifting drive member drives the lifting platform 35 to rise and switch it from the first position to the second position. The second position corresponds to the discharge position, so that the rotor shaft 1 located on the lifting platform 35 enters the discharge position, and then the first ejection component 33 raises the rotor shaft 1 in the discharge position to the discharge hole 321 and pushes it to the reclaimer The first lifting and lowering member 331 is a lifting member that is used to lift the lifting platform 35 and release the lifting platform 35. The lifting and lowering member 332 is a lifting member that is used to lift the lifting platform 35 and release the lifting platform 35. The lifting and lowering member 333 is a lifting member that is used to lift the lifting platform 35 and release the lifting platform 35. The lifting and lowering member 334 is a lifting member that is used to lift the lifting platform 35 and release the lifting platform 35. The rotor shafts 1 are transported to the discharge position one by one by switching the position of the lifting platform 35, and then the rotor shafts 1 are pushed out of the storage mechanism 3 one by one by the first ejection assembly 33, ensuring that the first ejection assembly 33 applies thrust to only one rotor shaft 1 at a time to eject it out of the storage mechanism 3, thereby improving the accuracy of taking the rotor shaft 1 and reducing the risk of unqualified motor rotors produced, thereby reducing the unqualified rate of motor rotors in production and processing.

[0080] Reference Fig.10 and Fig.11In order to reduce the risk of the lifting platform 35 being empty, the lifting platform 35 has a support area 351, and the support area 351 is open on the side facing the outlet end 343, and the bottom height of the support area 351 decreases from the side close to the outlet end 343 to the side away from the outlet end 343. The support area 351 is arranged with an opening on the side facing the outlet end 343, so that when the lifting platform 35 is in the first position, the rotor shaft 1 enters the support area 351 through the support area 351 on the side facing the outlet end 343, and the bottom surface height of the support area 351 decreases from the side close to the outlet end 343 to the side away from the outlet end 343, so that the rotor shaft 1 moves from the side of the support area 351 close to the outlet end 343 to the side of the support area 351 away from the outlet end 343 under the action of its own gravity, thereby reducing the risk of the rotor shaft 1 falling back to the outlet end 343 from the lifting platform 35 due to the rotor shaft 1 being at the edge of the support area 351, thereby reducing the risk of the lifting platform 35 being empty, preventing the lifting platform 35 from being empty and affecting the equipment's material collection efficiency for the rotor shaft 1, and improving the stability of the equipment.

[0081] Reference Fig.10 and Fig.11 Furthermore, the material storage rack 31 has a positioning side wall 311, and the side of the lifting platform 35 away from the outlet end 343 is arranged close to the positioning side wall 311, so that the rotor shaft 1 on the support area 351 is close to the positioning side wall 311. The positioning side wall 311 prevents the rotor shaft 1 from moving in the direction away from the outlet end 343, reduces the risk of the rotor shaft 1 continuing to move in the direction away from the outlet end 343 after moving to the support area 351 and falling from the lifting platform 35, that is, reduces the risk of the lifting platform 35 being empty, prevents the lifting platform 35 from being empty and affecting the material collection efficiency of the equipment for the rotor shaft 1, and improves the stability of the equipment.

[0082] Reference Fig.10 and Fig.11In order to further reduce the risk of the lifting platform 35 being empty, the diameter of the rotor shaft 1 is D, the width of the support area 351 is L1, 0.5D<L1<1.5D, and the width L1 of the support area 351 is greater than 0.5D, so that the width of the support area 351 can enable a rotor shaft 1 to move and be placed in the support area 351 more stably, reducing the risk of the rotor shaft 1 falling or being unable to enter the support area 351, preventing the lifting platform 35 from being empty and affecting the material taking efficiency of the equipment for the rotor shaft 1, and improving the stability of the equipment use; at the same time, the width L1 of the support area 351 is less than 1.5D, which reduces the risk of two or more rotor shafts 1 being located on the support area 351, and prevents the lifting platform 35 from transporting two or more rotor shafts 1 to the discharge position, ensuring that the first ejection component 33 applies thrust to only one rotor shaft 1 at a time to eject it from the storage mechanism 3, improving the accuracy of taking the rotor shaft 1, and reducing the risk of unqualified motor rotors produced, thereby reducing the unqualified rate of motor rotors in production and processing.

[0083] Preferably, 1.1D<L1<1.4D, and the width L1 of the support area 351 is greater than 1.1D, which further enables the width of the support area 351 to allow a rotor shaft 1 to move and be placed in the support area 351 more stably, further reducing the risk of the rotor shaft 1 falling or being unable to enter the support area 351, preventing the lifting platform 35 from being empty and affecting the equipment's material collection efficiency for the rotor shaft 1, and improving the stability of the equipment use; at the same time, the width L1 of the support area 351 is less than 1.4D, which further reduces the risk of two or more rotor shafts 1 being located on the support area 351, preventing the lifting platform 35 from transporting two or more rotor shafts 1 to the discharge position, ensuring that the first ejection component 33 applies thrust to only one rotor shaft 1 at a time to eject it from the storage mechanism 3, improving the accuracy of taking the rotor shaft 1, and reducing the risk of unqualified motor rotors produced, thereby reducing the unqualified rate of motor rotors in production and processing.

[0084] Reference Fig.10 and Fig.11In order to reduce the energy consumption of the equipment, the storage rack 31 is equipped with a first sensor 314 for detecting whether there is a rotor shaft 1 at the discharge position. The first sensor 314 adopts a conventional laser sensor. The first sensor 314 includes a first transmitting end and a first receiving end. The first transmitting end and the first receiving end are respectively located on both sides of the discharge position, that is, when the rotor shaft 1 is not at the discharge position, the first receiving end will receive the laser emitted by the first transmitting end. When the rotor shaft 1 is at the discharge position, the rotor shaft 1 will block the laser emitted by the first transmitting end, so that the first sensor 314 cannot receive the laser, so that the first sensor 314 can judge whether there is a rotor shaft 1 at the discharge position, and can record the number of rotor shafts 1 taken out by the number of times it is blocked. The first sensor 314 can detect whether there is a rotor shaft 1 at the discharge position, which can provide feedback to the first ejection assembly 33, reduce the risk of the first ejection assembly 33 doing useless work, and thus reduce the energy consumption of the equipment. At the same time, the sensor can record the number of rotor shafts 1 taken out by detecting whether there is a rotor shaft 1 at the discharge position. When the number of rotor shafts 1 reaches the processing requirement, the sensor feeds back data to the first lifting drive component to suspend the use of the rotor shaft 1, thereby ensuring that the number of rotor shafts 1 taken out meets the processing requirement. No manual recording is required, which reduces the risk of inaccurate number of rotor shafts 1 affecting subsequent processing and improves the convenience and stability of equipment use.

[0085] Reference Fig.10 and Fig.11 In order to facilitate the storage of the rotor shaft 1, a storage opening 341 is opened at the upper end of the storage bin 34, and the storage bin 34 is equipped with an upper cover 342 for covering the storage opening 341. The upper cover 342 is openable and closable, and one end of the upper cover 342 is rotatably connected to the storage bin 34. When the rotor shaft 1 needs to be stored in the storage bin 34, it is only necessary to rotate the upper cover 342 so that the upper cover 342 no longer covers the storage opening 341, and then the rotor shaft 1 can be stored in the storage bin 34 through the storage opening 341. After the storage is completed, the upper cover 342 is rotated so that the upper cover 342 covers the storage opening 341 to prevent external substances from affecting the storage of the rotor shaft 1. At the same time, the storage operation of the rotor shaft 1 is simple and convenient, which improves the convenience of equipment use.

[0086] Reference Fig.10 and Fig.11 In order to reduce the risk that the rotor shaft 1 cannot be discharged from the storage bin 34 and affects the use of the rotor shaft 1, the outlet of the outlet end 343 is located at the bottom of the storage bin 34 to prevent the rotor shaft 1 from being located below the outlet of the outlet end 343 and causing the rotor shaft 1 to be unable to be discharged from the storage bin 34. In this way, the risk that the rotor shaft 1 cannot be discharged from the storage bin 34 and affects the use of the rotor shaft 1 is reduced, and the stability of the equipment use is improved.

[0087] Reference Fig.10 and Fig.11 Furthermore, the bottom height of the storage bin 34 decreases from the side away from the outlet end 343 to the side close to the outlet end 343, so that the rotor shaft 1 moves in the direction close to the outlet end 343 under the action of its own gravity and applies a thrust to the rotor shaft 1 at the outlet end 343, thereby ensuring that the rotor shafts 1 are discharged one by one from the outlet of the outlet end 343 to the outside of the storage bin 34, preventing the risk of the rotor shaft 1 being unable to be discharged from the storage bin 34 from the outlet of the outlet end 343 due to the force applied between the rotor shafts 1 being too small to overcome the friction force they bear, thereby reducing the risk of the rotor shaft 1 being unable to be discharged from the storage bin 34 and affecting the use of the rotor shaft 1, and improving the stability of the equipment.

[0088] Reference Fig.10 and Fig.11 , considering that when multiple rotor shafts 1 are discharged from the storage bin 34 at the same time from the outlet of the outlet end 343, it is easy to cause the rotor shafts 1 to overlap at the outlet end 343, the diameter of the rotor shaft 1 is D, and the distance between the two sides of the outlet of the outlet end 343 in the height direction, that is, the Z-axis direction is H, D<H<2D, that is, H is greater than D so that the rotor shaft 1 can be discharged from the storage bin 34 through the outlet of the outlet end 343, and at the same time H is less than 2D so that two or more rotor shafts 1 cannot be discharged from the outlet at the same time, thereby reducing the number of rotor shafts 1 discharged from the outlet end 343 at the same time. When the outlet of 43 excludes the storage bin 34, it is easy to cause the risk of the rotor shafts 1 being superimposed on each other at the outlet end 343, thereby preventing multiple rotor shafts 1 from being superimposed and moving onto the lifting platform 35, that is, preventing the lifting platform 35 from transporting two or more rotor shafts 1 to the discharge position, ensuring that the first ejection component 33 only applies thrust to one rotor shaft 1 at a time to eject it from the storage mechanism 3, thereby improving the accuracy of taking the rotor shaft 1, reducing the risk of unqualified motor rotors produced, and thereby reducing the unqualified rate of motor rotors in production and processing.

[0089] Embodiment 4:

[0090] The difference from Example 3 is that the discharge position is not located on the lifting platform 35;

[0091] Reference Fig.12 The storage rack 31 is fixedly connected to a discharge platform 312 corresponding to the discharge position. The discharge platform 312 and the outlet end 343 are respectively located on both sides of the support area 351. The support area 351 is arranged in an open manner toward the side of the discharge platform 312. When the lifting platform 35 is in the second position, the bottom height of the support area 351 is higher than the bottom height of the discharge platform 312, so that the rotor shaft 1 in the support area 351 can enter the discharge platform 312. The rest of the structure is the same as that of the embodiment.

[0092] The implementation principle of the automatic feeding device for the motor rotor shaft 1 of the fourth embodiment of the present application is as follows:

[0093] After the lifting platform 35 moves to the second position, since the support area 351 is open on one side of the discharge platform 312, when the lifting platform 35 is in the second position, the bottom height of the support area 351 is higher than the bottom height of the discharge platform 312, and the rotor shaft 1 on the support area 351 will accurately enter the discharge platform 312 due to its own gravity, so that the rotor shaft 1 can accurately enter the discharge position, so that the first ejection component 33 corresponding to the discharge position can accurately eject the rotor shaft 1 out of the storage mechanism 3, preventing the first ejection component 33 from being unable to eject the rotor shaft 1 due to the rotor shaft 1 deviating from the discharge position, reducing the risk of affecting the subsequent removal and processing of the rotor shaft 1 due to the inability to be ejected, and improving the stability of the equipment.

[0094] Embodiment 5:

[0095] Based on Example 3 of the present application:

[0096] Reference Fig.13 and Fig.14 The outlet end 343 is provided with a buffer platform 313 , which is located between the lifting platform 35 and the outlet end 343 and is installed on the material storage rack 31 in a liftable manner. The buffer table 313 has a buffer zone 3131, and the first side 3132 of the buffer zone 3131 facing the outlet end 343 and the second side 3133 facing the lifting platform 35 are both open. The bottom height of the buffer zone 3131 decreases from the first side 3132 to the second side 3133. The buffer table 313 has a third position and a fourth position. When the buffer table 313 is in the third position, the bottom height of the first side 3132 is lower than the bottom height of the outlet end 343. When the buffer table 313 is in the fourth position and the lifting platform 35 is in the first position, the bottom height of the second side 3133 is higher than the bottom height of the lifting platform 35. The storage rack 31 is installed with a second lifting drive member for driving the buffer table 313 to switch between the third position and the fourth position. The second lifting drive member adopts a conventional driving cylinder. One end of the piston rod of the second lifting drive member is fixedly connected to the buffer table 313, and the other end is fixedly connected to the storage rack 31.

[0097] The implementation principle of the automatic feeding device for the motor rotor shaft 1 in Example 5 of the present application is as follows:

[0098] When the rotor shaft 1 is discharged from the storage bin 34 from the outlet of the outlet end 343, when the buffer platform 313 is in the third position, the bottom surface height of the first side 3132 is lower than the height of the outlet end 343, wherein the bottom surface height of the buffer zone 3131 decreases from the first side 3132 to the second side 3133, so that the rotor shafts 1 of multiple outlet ends 343 move from the outlet end 343 to the buffer zone 3131, and after reaching the buffer zone 3131, move from the first side 3132 of the buffer zone 3131 toward the second side 3133 until the buffer zone 3131 is fully covered, and then the second lifting drive member drives the buffer platform 313 to switch from the third position to the fourth position. When the buffer platform 313 is in the fourth position, the bottom surface height of the second side 3133 is higher than the bottom surface height of the lifting platform 35 when it is in the first position, so that the rotor shaft 1 closest to the lifting platform 35 on the buffer zone 3131 moves to the lifting platform 35 in the first position, and then the lifting platform 35 is driven by the first lifting drive member to switch from the first position to the fourth position. The rotor shaft 1 is transported to the second position to transport the rotor shaft 1 to the discharge position, and finally the rotor shaft 1 is ejected out of the storage mechanism 3 by the first ejection component 33, and then the first lifting drive drives the unloaded lifting platform 35 to switch from the second position to the first position, and another rotor shaft 1 on the buffer zone 3131 moves to the lifting platform 35 again, and then the lifting platform 35 transports the rotor shaft 1 to the discharge position and realizes the ejection of the rotor shaft 1 through the first ejection component 33, and this cycle is repeated until the last rotor shaft 1 on the buffer platform 313 moves to the unloaded lifting platform 35, at this time, the first driving lifting component drives the lifting platform 35 to switch positions, and the second driving lifting component drives the unloaded buffer platform 313 to switch from the fourth position to the third position, so that the rotor shaft 1 at the outlet end 343 enters the buffer zone 3131 again, and after the rotor shaft 1 fills the buffer zone 3131, the second lifting drive drives the buffer platform 313 to switch from the third position to the fourth position, so as to realize the ejection of the rotor shafts 1 one by one from the storage mechanism 3 in this cycle. The buffer table 313 is used to transport multiple rotor shafts 1 from the third position to the fourth position and then enter the lifting platform 35 one by one, thereby realizing the synchronous movement of multiple rotor shafts 1 in part of the time, and at the same time shortening the distance required between the first position and the second position of the lifting platform 35, that is, shortening the time required for the lifting platform 35 to switch from the first position to the second position, and the switching of the position of the lifting platform 35 and the switching of the position of the buffer table 313 can be carried out synchronously, thereby shortening the time required for taking out a large number of rotor shafts 1 and improving the efficiency of the equipment in taking out the rotor shafts 1.

[0099] Reference Fig.13 and Fig.14In order to reduce the risk of the lifting platform 35 and the buffer platform 313 being empty, the buffer zone 3131 is arranged close to the lifting platform 35, so that when the buffer platform 313 is in the third position and the lifting platform 35 is in the second position, the rotor shaft 1 in the buffer zone 3131 is close to the side wall of the lifting platform 35, and the side wall hinders the rotor shaft 1 from moving in the direction away from the outlet end 343, thereby reducing the risk that the rotor shaft 1 continues to move in the direction away from the outlet end 343 after moving to the buffer zone 3131 and falls from the buffer zone 3131 and cannot enter the lifting platform 35, that is, reducing the risk of the lifting platform 35 being empty, preventing the lifting platform 35 from being empty and affecting the material taking efficiency of the equipment for the rotor shaft 1, and improving the stability of the equipment.

[0100] Reference Fig.13 and Fig.14 In order to ensure that there are at least two rotor shafts 1 in the buffer zone 3131 each time the buffer table 313 switches from the third position to the fourth position, the diameter of the rotor shaft 1 is D, the width of the buffer zone 3131 is L2, and L2≥2D, that is, the width L2 of the buffer zone 3131 is greater than or equal to 2D, so that the buffer zone 3131 can hold at least two rotor shafts 1, to ensure that there are at least two rotor shafts 1 in the buffer zone 3131 each time the buffer table 313 switches from the third position to the fourth position, thereby reducing the risk of the equipment's material collection efficiency for the rotor shaft 1 being reduced due to the buffer table 313 only transporting one rotor shaft 1 each time, and improving the stability of the equipment.

[0101] Embodiment 6:

[0102] Based on Example 1:

[0103] Reference Figure 1 and Fig.15 The material-retrieving mechanism 4 includes a mobile frame 41 slidably connected to the fixed frame 2, a mobile assembly 42 for driving the mobile frame 41 to translate, and a second ejection assembly and a hollow tube 43 installed on the mobile frame 41. One end of the hollow tube 43 faces the discharging position. The second ejection assembly is installed at the other end of the hollow tube 43 and is used to eject the rotor shaft 1 in the hollow tube 43. The second ejection assembly includes a first cylinder and a push rod. One end of the piston rod of the first cylinder is fixedly connected to the push rod and the other end is fixedly connected to the mobile frame 41. The mobile assembly 42 includes a slide rail installed on the mobile frame 41, a transmission screw rotatably connected to the fixed frame 2, a first motor installed on the fixed frame 2 and used to drive the transmission screw to rotate, and a sliding block installed on the mobile frame 41. The sliding block slidably cooperates with the slide rail to limit the rotation of the sliding block, and the sliding block is threadedly connected to the transmission screw.

[0104] The implementation principle of the automatic feeding device for the motor rotor shaft 1 in Example 6 of the present application is as follows:

[0105] When the lifting platform 35 switches from the first position to the second position, so that the corresponding rotor shaft 1 is in the discharging position, the first ejection component 33 pushes the rotor shaft 1 to the detection mechanism 5. If the detection mechanism 5 passes the detection, that is, the rotor shaft 1 is in the positive direction, the moving component 42 drives the moving frame 41 to translate, so that the material taking mechanism 4 moves from the initial position to the receiving position, that is, the first motor drives the transmission screw to rotate, so that the sliding block slides in the extension direction of the transmission screw, that is, the translation of the moving frame 41 is realized, so that one end of the hollow tube 43 is facing the detection mechanism 5, so that the first ejection component 33 pushes the positive rotor shaft 1 to the moving frame 41.

[0106] In order to ensure that the rotor shaft 1 is smoothly pushed onto the material-retrieving mechanism 4, the material-retrieving mechanism 4 also includes a vacuum negative pressure component installed on the movable frame 41, and the vacuum negative pressure component is connected to the inner cavity of the hollow tube 43 to generate negative pressure in the inner cavity, so that when the first ejection component 33 applies a thrust to the rotor shaft 1 to make it move toward the direction close to the hollow tube 43, the vacuum negative pressure component causes the inner cavity of the hollow tube 43 to generate negative pressure, so that the inner cavity of the hollow tube 43 generates suction on the rotor shaft 1 due to the pressure difference, so that the rotor shaft 1 moves as a whole from the discharge position to the inner cavity of the hollow tube 43, thereby increasing the probability that the rotor shaft 1 enters the hollow tube 43 completely, and preventing the risk that the first ejection component 33 has a small thrust on the rotor shaft 1, resulting in a partial area of ​​the rotor shaft 1 not entering the hollow tube 43, thereby reducing the risk that the hollow tube 43 is empty and affects the transportation efficiency of the rotor shaft 1 and the risk that the rotor shaft 1 fails to be smoothly removed and affects subsequent processing, thereby improving the stability of equipment use.

[0107] In order to improve the transport efficiency of the material taking mechanism 4 for the rotor shaft 1, the number of hollow tubes 43 is multiple, and the material taking mechanism 4 has an intermediate position, which is located between the initial position and the receiving position. When a positive rotor shaft 1 is stored in the first hollow tube 43, the moving component 42 drives the moving frame 41 to translate so that the material taking mechanism 4 moves to the intermediate position. If the test result is unqualified, the moving component 42 remains in the intermediate position and does not move. If the test result is qualified, the moving component 42 drives the moving frame 41 to translate again so that another hollow tube 43 faces the test mechanism. 5, so that the forward rotor shaft 1 enters another hollow tube 43, and the rotor shafts 1 are taken out one by one in this cycle, until there is a forward rotor shaft 1 in each of the four hollow tubes 43, and the moving assembly 42 drives the moving frame 41 to translate to the initial position, that is, the next workbench for processing the rotor shaft 1, and then the second ejecting assembly ejects the rotor shaft 1 in the hollow tube 43, thereby ensuring that the four rotor shafts 1 are taken out one by one while realizing the simultaneous transportation of the four rotor shafts 1 on a part of the distance, thereby improving the transportation efficiency of the taking mechanism 4 for the rotor shaft 1.

Claims

1. An automatic feeding device for a motor rotor shaft, wherein one end of the rotor shaft (1) is provided with a groove (11), wherein: The invention comprises a fixing frame (2), a material storage mechanism (3), a material removal mechanism (4) and a detection mechanism (5) for detecting whether the rotor shaft (1) is in the forward direction, wherein the material storage mechanism (3), the detection mechanism (5) and the material removal mechanism (4) are arranged on the fixing frame (2) in sequence, the material storage mechanism (3) comprises a material storage frame (31) fixedly connected to the fixing frame (2), and a material discharge portion (32) and a first ejection assembly (33) arranged on the material storage frame (31), the material storage frame (31) being provided with a material discharge position corresponding to the material discharge portion (32), and the first ejection assembly (33) pushing the rotor shaft (1) at the material discharge position to the detection mechanism (5). The detection mechanism (5) is on a rotor shaft recovery box (6) provided below the detection mechanism (5); the material taking mechanism (4) has an initial position and a receiving position corresponding to the detection mechanism (5); if the detection result of the detection mechanism (5) is positive, the material taking mechanism (4) moves to the receiving position, and the first ejection component (33) pushes the rotor shaft (1) on the detection mechanism (5) onto the material taking mechanism (4); if the detection result of the detection mechanism (5) is negative, the material taking mechanism (4) is located at the initial position, and the first ejection component (33) pushes the rotor shaft (1) on the detection mechanism (5) into the rotor shaft recovery box (6); The detection mechanism (5) comprises a mounting frame (51) arranged on the fixing frame (2), a clamping mechanism (52) arranged on the mounting frame (51) and used for clamping the rotor shaft (1) and clamping it into the groove (11), and a detection sensor (53) used for detecting whether the rotor shaft (1) is present on the mounting frame (51); The clamping mechanism (52) comprises a clamping drive assembly (7) arranged on the mounting frame (51) and a clamping assembly (8) slidably connected to the mounting frame (51); the mounting frame (51) is provided with a through hole (511); a plurality of the clamping assemblies (8) are provided, and the plurality of the clamping assemblies (8) are arranged at intervals along the circumference of the through hole (511); the clamping mechanism (52) has an unlocking state and a locking state; when the clamping mechanism (52) is in the locking state, the plurality of the clamping assemblies (8) clamp the rotor shaft (1) and one of the clamping assemblies (8) is inserted into the groove (11) to restrict the rotor shaft (1) relative to the mounting frame (51), when the clamping mechanism (52) is in an unlocked state, a plurality of the clamping assemblies (8) all loosen the rotor shaft (1) to enable the rotor shaft (1) to slide relative to the mounting frame (51), and the clamping drive assembly (7) can drive the clamping assembly (8) to slide in a direction away from or close to the through hole (511) to achieve switching between the unlocked state and the locked state of the clamping mechanism (52), and when the clamping mechanism (52) is in the locked state, the friction force between the rotor shaft (1) and the clamping assembly (8) is smaller than the thrust of the first ejection assembly (33) on the rotor shaft (1).

2. The motor rotor shaft automatic feeding device according to claim 1 is characterized in that: The clamping assembly (8) comprises a sliding frame (81), a sliding block (82) and an elastic member (83) arranged on the mounting frame (51); the sliding block (82) is slidably connected to the sliding frame (81); the elastic member (83) is located between the sliding frame (81) and the sliding block (82) and is used to make the sliding block (82) extend in the direction of the through hole (511); when the clamping mechanism (52) is in a locked state, a plurality of the sliding blocks (82) all contact the rotor shaft (1) and one of the sliding blocks (82) is inserted into the groove (11) to limit the sliding movement of the rotor shaft (1) relative to the mounting frame (51); when the clamping assembly (8) is in an unlocked state, a certain distance exists between the plurality of the sliding blocks (82) and the hole wall of the through hole (511) to enable the rotor shaft (1) to slide relative to the mounting frame (51).

3. The automatic feeding device for motor rotor shaft according to claim 2 is characterized in that: Four clamping assemblies (8) are provided, and every two clamping assemblies (8) arranged opposite to each other form a group to form a first assembly (84) and a second assembly (85). When the clamping assembly (8) is in an unlocked state, the distance between one end of the sliding block (82) in the first assembly (84) close to the through hole (511) and the hole wall of the through hole (511) is S1, and the distance between one end of the sliding block (82) in the second assembly (85) close to the through hole (511) and the hole wall of the through hole (511) is S2, S1<S2, and when the sliding block (82) in the second assembly (85) contacts the rotor shaft (1), the elastic force of the elastic member (83) in the second assembly (85) is F1, and the elastic force of the elastic member (83) in the first assembly (84) is F2, F1>F2.

4. The automatic feeding device for motor rotor shaft according to claim 1 is characterized in that: The clamping drive assembly (7) comprises a rotating frame (71) rotatably connected to the mounting frame (51) and a rotating drive member (72) arranged on the mounting frame (51) and used to drive the rotating frame (71) to rotate, the rotating frame (71) being provided with a plurality of arc-shaped grooves (711), and the clamping assembly (8) being fixedly connected with a guide member (811) used to extend into the corresponding arc-shaped grooves (711), the arc-shaped grooves (711) being eccentrically arranged relative to the rotation axis of the rotating frame (71), so that when the rotating frame (71) rotates relative to the mounting frame (51), the guide member (811) moves in a direction away from or close to the through hole (511) under the guiding action of the arc-shaped grooves (711).

5. The motor rotor shaft automatic feeding device according to claim 1 is characterized in that: The material taking mechanism (4) comprises a movable frame (41) slidably connected to the fixed frame (2), a movable mechanism arranged on the fixed frame (2) and used to drive the movable frame (41) to translate, and a vacuum negative pressure component, a second ejection component and at least one hollow tube (43) arranged on the movable frame (41), one end of the hollow tube (43) facing the rotor shaft (1), the second ejection component being arranged at the other end of the hollow tube (43) and used to eject the rotor shaft (1) in the hollow tube (43), and the vacuum negative pressure component being in communication with an inner cavity in the hollow tube (43) so that negative pressure is generated in the inner cavity.

6. The automatic feeding device for motor rotor shaft according to claim 1 is characterized in that: The material storage mechanism (3) further comprises a material storage bin (34), a lifting platform (35) and a first lifting drive member arranged on the material storage rack (31); the height of the discharge position is higher than an outlet end (343) of the material storage bin (34); the lifting platform (35) is arranged between the outlet end (343) and the discharge position; the lifting platform (35) has a first position corresponding to the outlet end (343) and a second position corresponding to the discharge position; the first lifting drive member can drive the lifting platform (35) to switch between the first position and the second position so that the rotor shaft (1) on the lifting platform (35) enters the discharge position.

7. The automatic feeding device for motor rotor shaft according to claim 6 is characterized in that: The lifting platform (35) is provided with a support area (351), and the support area (351) is provided with an opening on a side facing the outlet end (343), and the bottom surface height of the support area (351) decreases from a side close to the outlet end (343) to a side away from the outlet end (343).

8. The automatic feeding device for motor rotor shaft according to claim 6 is characterized in that: The outlet end (343) is provided with a buffer table (313), the buffer table (313) is located between the lifting platform (35) and the outlet end (343) and is escalably arranged on the material storage rack (31), the buffer table (313) is provided with a buffer zone (3131), the buffer zone (3131) is open on a first side (3132) facing the outlet end (343) and on a second side (3133) facing the lifting platform (35), and the bottom surface height of the buffer zone (3131) increases from the first side (3132) to the second side (3133). 133), the buffer table (313) has a third position and a fourth position, when the buffer table (313) is in the third position, the bottom height of the first side (3132) is lower than the bottom height of the outlet end (343), when the buffer table (313) is in the fourth position and the lifting platform (35) is in the first position, the bottom height of the second side (3133) is higher than the bottom height of the lifting platform (35), and the material storage rack (31) is provided with a second lifting drive member for driving the buffer table (313) to switch between the third position and the fourth position.

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