Automatic nail threading line body of motor stator and automatic nail threading process thereof

Abstract

The application discloses a kind of motor stator automatic threading line body and automatic threading process thereof, including stator supply part, screw supply part, spring supply part and distribution combination part and assembly part, stator supply part is used to export and position stator;Assembly part is set at assembly station;Distribution combination part is set at the side of assembly part;Screw supply part and spring supply part are correspondingly set at the two sides of distribution combination part;Screw supply part and spring supply part are respectively exported screw and spring, and then assembled into screw and spring combination in distribution combination part, and distribution combination part exports screw and spring combination to assembly part and then is assembled into stator.The application realizes screw and spring double-channel feeding, distribution, transfer combination, and realizes cyclic rotation alternating synchronous material receiving and feeding, effectively improves feeding efficiency, realizes four combination synchronous feeding and assembly by rotating rotation type material receiving and cutting mode, improves overall assembly efficiency.

Description

Technical Field

[0001] This invention relates to the field of electric motors, and in particular to an automatic stator threading line for an electric motor and its automatic threading process. Background Technology

[0002] Electric motors are a fundamental component in intelligent manufacturing, widely used in robots, automated production lines, and automated equipment to provide power for driving or transmission processes. In practical applications, the motor's power is converted through relevant transmission mechanisms to achieve various automated movements. The core function of an electric motor is to drive a load to rotate or move linearly. Its core components include a stationary stator, a rotating rotor, and control circuitry, achieving energy conversion through the principle of electromagnetic induction. As a medium providing rotational power, electric motors have a wide range of applications, such as electric vehicle drives, robot joint drives, fans, and vibrators.

[0003] The motor stator is the core component of a motor, and it has two main functions: generating a rotating magnetic field and providing mechanical support. Specifically, generating a rotating magnetic field: when three-phase alternating current is applied to the stator windings, a rotating magnetic field is generated, which is crucial for the motor's rotation. Mechanical support and fixation: the stator frame is responsible for fixing and supporting the entire stator core and windings, ensuring the stability of the motor structure. During the manufacturing process of the motor stator, screw and spring assemblies need to be inserted at the four corners of the stator base. This involves first inserting the screw into the spring from above, with the lower end of the screw protruding from the spring to form a screw-spring assembly, and then inserting the screw-spring assembly as a whole into the screw holes at the four corners of the stator base. Based on the above assembly process, the production assembly process involves the combination of four screws and four springs, as well as the insertion of four sets of screw and spring assemblies. The existing manual assembly method is inefficient and cannot guarantee the consistency of insertion quality. In view of this, it is necessary to design a production line and screw insertion process for the automatic combination and insertion of motor stator screws and springs to improve assembly efficiency and quality. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the shortcomings of the prior art by providing an automatic stud threading line for motor stators and its automatic stud threading process. This line enables dual-channel feeding, sorting, and transfer of screws and springs to form assemblies, and achieves cyclical alternating synchronous feeding and receiving, thus realizing continuous and uninterrupted feeding of springs and screws, effectively improving the feeding efficiency of screws and springs. Furthermore, the automatic stud threading line enables synchronous feeding and assembly of four assemblies through a rotary alternating feeding and cutting method, thereby improving the overall assembly efficiency.

[0005] The technical solution adopted in this invention is as follows: An automatic stator threading line for automatically assembling screw and spring assemblies on a motor stator, comprising a stator feeding section, a screw feeding section, a spring feeding section, a material distribution and assembly section, and an assembly section. The stator feeding section is arranged along an L-shaped line, with an assembly station on one side. The assembly section is located at the assembly station. The material distribution and assembly section is located on the side of the assembly section. The screw feeding section and the spring feeding section are correspondingly located on both sides of the material distribution and assembly section. The screw feeding section and the spring feeding section respectively guide the screw and spring before assembling them at the material distribution and assembly section. After the screw and spring assembly is formed, the material distribution assembly section guides the screw and spring assembly to the assembly section, where the screw and spring assembly is assembled into the stator to form a stator assembly. The material distribution assembly section includes a spring receiving assembly, a flat pushing assembly, a feeding assembly, a circulating material distribution assembly, a blocking assembly, a discharging assembly, and a direct pushing assembly. The spring receiving assembly and the feeding assembly are spaced apart in the same direction. The spring receiving assembly receives the springs from the spring feeding section and transfers them into the feeding assembly. The screws from the screw feeding section are inserted from above into the springs on the feeding assembly to form screw and spring assemblies. The feeding assembly... The components synchronously clamp and fix at least two screw and spring assemblies; the pushing component is located at one end of the feeding component and outputs linear power along the assembly direction, synchronously pushing at least two screw and spring assemblies on the feeding component towards the assembly direction; the circulating distribution component is located at the other end of the feeding component, and includes two parallel and spaced circulating distribution grooves that move back and forth in a linear motion perpendicular to the feeding component, alternately picking up screw and spring assemblies from the feeding component; the discharging component is located between the circulating distribution component and the assembly part, after the circulating distribution component picks up the screw and spring assemblies... The screw and spring assembly is guided into the discharge assembly. The direct push assembly is located on the side of the discharge assembly and is used to push the screw and spring assembly into the assembly part. The assembly part includes an assembly platform and an assembly robot. The assembly platform includes an assembly support and a transfer assembly. The assembly support is located at the assembly station and is used to correct and position the stator to be assembled. The transfer assembly is spaced between the assembly support and the discharge assembly and is used to pick up the screw and spring assembly and then rotate and cut it. The assembly robot is mounted above the assembly support and the transfer assembly. The assembly robot simultaneously picks up at least two screw and spring assemblies from the transfer assembly and then assembles them onto the stator.

[0006] Preferably, the outer edge of the stator is provided with four screw holes; the screw and spring assembly includes a spring and a screw, wherein the screw is inserted into the spring from above, and the lower end of the screw extends downward to the outside of the spring so as to be inserted into the screw hole.

[0007] Preferably, the stator feeding section includes a stator loading assembly and a guiding assembly. The stator loading assembly includes a stator guide rail and a carrier arm. The stator guide rail is arranged in a straight line, with one end connected to an external feeding mechanism for guiding the stator carrier. The guiding assembly includes a loading bracket, a transmission belt, and a blocking assembly. The loading bracket is vertically positioned at the other end of the stator guide rail. The carrier arm is located at the connection between the loading bracket and the stator guide rail, for transporting the stator carrier from the stator guide rail into the loading bracket. The support frame has a straight-lined material channel in the middle, with two inner drive belts on both sides of the material channel. The drive belts are driven by a motor to move linearly along the material channel. The stator carrier is placed on the drive belts and moves linearly within the material channel. The blocking component is set at the assembly station of the feeding support frame to block and limit the movement of the stator carrier. At least two carrier sensors are spaced apart on the side of the assembly station to sense and detect the stator carrier being driven, so that the blocking component can start the blocking action. The outer cover of the carrier arm is covered with a machine cover for protection.

[0008] Preferably, the spring feeding section includes a spring feeding assembly, a spring blocking assembly, and a spring lifting arm. The spring feeding assembly includes a spring feeding bracket, a spring vibrating plate, and a spring vibrating component. The spring feeding bracket is located on the side of the material distribution assembly section. Two spring vibrating plates are spaced apart within the spring feeding bracket, storing springs to be assembled and ejecting them via vibration. The spring vibrating component comprises two sets, each connected to the outlet of one of the two spring vibrating plates for receiving the ejected springs. The spring blocking assembly is located outside the outlet of the spring vibrating component, blocking and supporting the horizontally ejected springs. The spring lifting arm is mounted outside the spring blocking assembly, used to remove the horizontally positioned spring from the spring blocking assembly and transport it to the spring receiving assembly. After the spring receiving assembly rotates to a vertical position, the spring lifting arm transports the vertically positioned spring to the feeding assembly.

[0009] Preferably, the spring vibration component includes a spring vibration seat, a spring guide seat, a spring positioning cylinder, and a spring positioning column. The spring vibration seat is located outside the outlet of the spring vibration disc and provides vibration force. The spring guide seat is mounted on the spring vibration seat and is a strip-shaped seat with a horizontally extending spring guide groove inside. One end of the spring guide groove connects to the outlet of the spring vibration disc, and the other end connects to the spring blocking assembly. The springs discharged from the spring vibration disc enter the spring guide groove and are horizontally and linearly transmitted within it. At least two spring positioning cylinders are horizontally mounted on the side wall of the spring guide seat. The spring positioning column is connected to the output end of the spring positioning cylinder and extends horizontally through the spring guide seat into the spring guide groove, controlling and blocking the springs entering the guide groove.

[0010] Preferably, the screw feeding section includes a screw loading assembly and a screw lifting arm. The screw loading assembly includes a screw feeding component, a screw vibration component, and a screw dispensing component. The screw feeding component comprises two sets, which are spaced apart and used to automatically supply and discharge screws to be assembled. The screw vibration component is located at the discharge end of the screw feeding component and is used to pick up screws and discharge them one by one in a straight line. The screw dispensing component is located at the discharge end of the screw vibration component in a direction perpendicular to the screw vibration component and picks up screws one by one while moving in a direction perpendicular to the screw vibration component. The screw lifting arm is mounted between the screw dispensing component and the feeding assembly and is used to remove the screws from the screw dispensing component and insert them into the vertically arranged spring in the feeding assembly.

[0011] Preferably, the screw distribution component includes a distribution bracket, a distribution motor, a distribution belt, a distribution connecting seat, a distribution block, an ejection cylinder, and an ejection block. The distribution bracket is located at the discharge end of the screw vibration component, and a mating groove is formed on one side wall of the distribution bracket near the screw vibration component, through which the screw guide rail horizontally passes. The distribution motor is mounted on the distribution bracket with its output end facing upwards. The distribution belt is horizontally mounted on the distribution bracket perpendicular to the screw vibration component, with one end sleeved on the output shaft of the distribution motor and the other end sleeved on a rotating wheel mounted on the distribution bracket, moving perpendicular to the screw vibration component under the drive of the distribution motor. The distribution connecting seat is slidably mounted on the distribution belt perpendicular to the screw vibration component. The material distribution block is mounted on a support frame and connected to a material distribution belt, moving linearly with the belt. The material distribution block is located on the side of the material distribution connecting seat. At least two receiving grooves are provided on the side of the material distribution block near the screw vibration component. The sides and upper and lower ends of the receiving grooves are open surfaces. When the material distribution block moves with the material distribution connecting seat, the receiving grooves align with the connecting grooves, allowing the screw to enter the receiving grooves. The ejector cylinder is located on the side of the connecting groove, with its output end facing upwards. The ejector block is horizontally positioned on the output end of the ejector cylinder. At least two inwardly recessed grooves are present on the ejector block corresponding to the receiving grooves. After the receiving groove of the material distribution block receives the screw, it moves the screw above the ejector block, causing the lower end of the screw to slide into the groove of the ejector block. The ejector block moves upwards, lifting the screw from the receiving groove.

[0012] Preferably, the spring receiving assembly includes a receiving linear module, a receiving slide, a receiving support plate, a receiving rotary motor, a receiving rotary seat, and a spring cylinder. The receiving linear module is horizontally positioned; the receiving slide is located at the output end of the receiving linear module; the receiving support plate comprises two plates, which are parallel and spaced apart on the receiving slide; the receiving rotary seat is horizontally positioned between the two receiving support plates, with both ends rotatably connected to the two receiving support plates; the receiving rotary motor is located on the outer wall of the receiving support plate, and its output end passes through the receiving support plate and connects to the receiving rotary seat. The receiving rotary seat has at least two spring material holes, one end of which is open for receiving springs. A first mounting hole is provided on the side of each spring material hole, and a second and third mounting holes are provided at the bottom. At least two spring cylinders are included, each embedded in the first and second mounting holes, with their output ends facing the spring material holes. The spring cylinder in the first mounting hole is used to clamp and limit the spring within the spring material hole from the side, while the spring cylinder in the second mounting hole is used to push the spring outwards for removal. The third mounting hole is used for installation and connection.

[0013] Preferably, the feeding assembly includes a feeding bracket, a feeding slide, a feeding positioning cylinder, a feeding positioning seat, and a feeding positioning block. The feeding bracket is vertically oriented, with a through feeding cavity on its side wall. The lower part of the feeding cavity has a recessed feeding groove, and the top of the feeding cavity has a vertically continuous feeding channel. The bottom of the feeding channel has a strip-shaped through groove with a width smaller than the feeding channel width to communicate with the feeding cavity below. After a spring is placed in the feeding channel, a screw is inserted into the spring from above, forming a screw and spring assembly. The feeding slide is horizontally positioned within the feeding cavity and is slidable. The feeding positioning cylinder is horizontally mounted on the feeding slide along the direction perpendicular to the feeding chute, with both ends serving as output ends. Two feeding positioning seats are vertically connected to the output ends of the feeding positioning cylinder, and are driven by the cylinder to move closer to or further away from the feeding chute. The feeding positioning block is horizontally mounted on the top of the feeding positioning seat and extends freely through the side wall of the feeding bracket into the feeding chute. The feeding positioning block has at least two V-shaped feeding slots on the side near the feeding chute, used to clamp the screw and spring assembly inside the feeding chute from the side.

[0014] Preferably, the flat-push assembly includes a flat-push bracket, a flat-push cylinder, a flat-push rod, and a flat-push block. The flat-push bracket is disposed on the outside of the feeding assembly. The flat-push cylinder is horizontally disposed on the flat-push bracket, with its output end facing the feeding assembly. The flat-push rod is connected to the output end of the flat-push cylinder and extends horizontally outward. The outer end of the flat-push rod extends horizontally and vertically downward in sequence, perpendicular to the direction of the flat-push rod. The flat-push block is disposed on the outer end of the flat-push rod and is used to push the screw and spring assembly inside the feeding assembly to move linearly.

[0015] Preferably, the circulating material distribution assembly includes a circulating material distribution bracket, a circulating material distribution cylinder, and a circulating material distribution seat. The circulating material distribution bracket is disposed at the discharge end of the feeding assembly. The circulating material distribution cylinder is disposed on the circulating material distribution bracket and outputs linear power in a direction perpendicular to the feeding trough. The circulating material distribution seat includes two such seats, which are spaced apart on the circulating material distribution cylinder and driven by the cylinder to move back and forth in a linear direction perpendicular to the feeding trough, so as to alternately dock with the feeding trough and guide the screw and spring assembly in the feeding trough into the circulating material distribution trough opened on the circulating material distribution seat.

[0016] Preferably, the assembly support is disposed on the material guiding assembly of the stator feeding section. The assembly support includes a lifting and positioning assembly and a correction and limiting assembly. The lifting and positioning assembly is disposed at the assembly station. The lifting and positioning assembly moves upward to lift the stator carrier upward so that it is disengaged from the moving transmission belt and to position and fix the stator carrier. The correction and limiting assembly includes two sets, which are correspondingly disposed on both sides of the lifting and positioning assembly. They are used to clamp and correct the stator in the stator carrier after lifting and positioning.

[0017] The lifting and positioning assembly includes a support plate, a lifting cylinder, a lifting column, a lifting seat, inserts, and guide rods. The support plate is horizontally positioned. The lifting cylinder is located at the lower part of the support plate. The lifting column is vertically connected to the output end of the lifting cylinder and extends upward through the support plate. The lifting seat is horizontally positioned at the top of the lifting column and moves up and down by the lifting column. At least two inserts are vertically positioned on the lifting seat. When the lifting seat lifts and supports the stator carrier, at least two inserts are inserted upward into the stator carrier to position it. At least two guide rods are fixedly connected at their upper ends to the bottom of the lifting seat, and their lower ends are slidably inserted vertically into the support plate to guide and limit the lifting seat's movement.

[0018] The correction limiting assembly includes a correction bracket, a correction cylinder, an arc-shaped correction block, and a correction connecting component. The correction bracket is mounted on the side of the lifting and positioning assembly. The correction cylinder is located on the top of the correction bracket, with its output end facing the lifting and positioning assembly. The correction connecting component is located at the outer end of the correction cylinder and is used to connect and install the arc-shaped correction block.

[0019] The calibration connection component includes a mounting plate, a connecting seat, a locking seat, a locking rod, a locking sleeve, and a connecting column. The mounting plate is vertically connected to the outer end of the calibration cylinder output shaft. The connecting seat is located on the outer side of the mounting plate, and a through mounting groove is formed in the center of the connecting seat. Two locking seats are included: an upper locking seat and a lower locking seat are respectively arranged parallel to each other on the upper and lower sides of the mounting groove, extending horizontally outwards. The back side of the arc-shaped calibration block has an outwardly protruding embedding portion, and a clearance groove is formed below the embedding portion. The embedding portion is embedded in the mounting groove, and the clearance groove engages with the lower locking seat. The embedded part and the upper locking seat are respectively provided with locking holes; the locking sleeve is inserted into the locking hole of the upper locking seat and is threadedly connected to the locking hole to fix it on the upper locking seat; the locking rod passes through the locking sleeve to the locking hole of the embedded part and is threadedly connected to the locking hole and the locking sleeve to fix the arc-shaped correction block on the upper locking seat; the connecting post includes at least two posts, which horizontally pass through the arc-shaped correction block, the connecting seat and the mounting plate in sequence to connect and fix the three; the side walls of the connecting seat are respectively provided with outwardly protruding mounting guide blocks to guide and limit the arc-shaped correction block during installation.

[0020] Preferably, the transfer assembly includes a transfer platform and a pushing component. The transfer platform includes a horizontally arranged turntable and a guide seat disposed on the outer side of the turntable. The turntable rotates in a horizontal plane, and at least two material troughs are spaced apart along the circumferential direction on the turntable. The outer side of the material troughs is open to allow the screw and spring assembly to be inserted. The guide seat has an L-shaped transfer groove inside, one side of which connects to the discharge assembly, and the other side connects to the material trough. The pushing component is disposed at the guide seat. After the screw and spring assembly discharged by the discharge assembly enters the transfer groove, it is pushed into the material trough by the pushing component.

[0021] The transfer platform also includes a transfer platform base, a rotating component, and a limiting component. The transfer platform base is a U-shaped frame and is horizontally positioned. The rotating component is located at the bottom of the transfer platform base, with its output end extending upward through the transfer platform base and outputting rotational power in the horizontal plane. The transfer platform is located on the output end of the rotating component and rotates as driven by the rotating component. The limiting component is located on the transfer platform base and on the outside of the transfer platform, used to limit the screw and spring assembly in the material trough.

[0022] The guide seat is vertically mounted on the outer support. A transfer groove is provided inside the guide seat. The transfer groove is a groove with an L-shaped cross-section. The top and two perpendicular sides of the transfer groove are open structures. One side is a feed inlet and the other side is a discharge outlet. The feed inlet and discharge outlet are connected to each other. The feed inlet is connected to the discharge assembly, and the discharge outlet is connected to the material trough to allow the screw and spring assembly to be introduced and exported.

[0023] The pushing component includes a pushing bracket, a pushing cylinder, a pushing rod, and a pushing block. The pushing bracket is vertically mounted on the outside of the turntable. The pushing cylinder is horizontally mounted on a horizontal support platform at the top of the pushing bracket, with its output end facing the turntable. The pushing rod is connected to the output end of the pushing cylinder and extends above the turntable. The pushing block is a U-shaped block connected to the outer end of the pushing rod, with its U-shaped opening facing downwards. It is used to fit onto the screw and spring assembly in the central transfer groove from above and push the screw and spring assembly from the central transfer groove into the material trough.

[0024] An automatic pin-threading process for an automatic pin-threading wire for an electric motor stator includes the following steps:

[0025] S1. Stator feeding and transfer: After the stator to be assembled is placed in the stator carrier, it is fed along a straight line by the stator guide rail of the stator feeding mechanism of the stator feeding section, and then moved to the guide assembly by the carrier arm, and then transferred to the assembly station by the transmission belt of the guide assembly.

[0026] S2, Stator blocking positioning and correction: After the stator carrier in step S1 is blocked and positioned at the assembly station by the assembly support, it is lifted upward so that the stator carrier is separated from the transmission belt in the conveyor. Then, the stator inside the stator carrier is corrected and positioned from both sides.

[0027] S3. Spring feeding and turning transfer: The springs to be assembled are horizontally led out one by one by the spring feeding mechanism of the spring feeding section, and then the springs are horizontally transported to the spring receiving assembly by the spring arm. After the spring receiving assembly rotates the multiple springs on it to the vertical direction, the spring arm moves the vertical springs into the feeding assembly for vertical insertion.

[0028] S4. Screw feeding and distribution: After the screws to be assembled are led out by the screw feeding component of the screw feeding section, they are guided one by one into the screw distribution component in the vertical direction by the screw vibration component. The screw distribution component picks up the screws one by one while moving in a direction perpendicular to the screw leading out, thus realizing screw distribution. After the picking is completed, the screws are pushed out from below.

[0029] S5. Screw picking and assembly: After the screw is ejected in step S4, the screw arm of the screw feeding part takes the screw out from the screw dispensing part and inserts the screw into the spring in the feeding assembly in step S3 from above, forming a screw and spring assembly.

[0030] S6. Screw and spring assembly alignment, positioning and export: After the screw and spring assembly is assembled in step S5, the feeding assembly clamps and aligns multiple screw and spring assemblies from both sides, and the flat pushing assembly pushes out multiple screw and spring assemblies simultaneously.

[0031] S7. Circulating material receiving and distributing: When the screw and spring assembly is pushed out in step S6, it is received alternately by the two circulating material distributing grooves of the circulating material distributing component. While one circulating material distributing groove receives the screw and spring assembly, the other circulating material distributing groove alternately discharges the received screw and spring assembly into the discharge component at its rear.

[0032] S8. Dual-channel alternating transfer material handling: After the two sets of discharge components in step S7 receive the screw and spring assembly from the circulating material distribution component, they synchronously guide it into the guide seat of the transfer component. The screw and spring assembly flows along an L-shaped path in the guide seat and is pushed into the transfer groove of the turntable by the pushing component on the outside of the guide seat. The turntable rotates, so as to simultaneously receive two screw and spring assemblies and transfer the received screw and spring assembly to the bottom of the assembly robot for it to take out.

[0033] S9. Assembly of screw and spring assembly: After the assembly robot in step S8 takes the screw and spring assembly from the turntable, it assembles it onto the stator in step S2.

[0034] The beneficial effects of this invention are as follows:

[0035] This invention addresses the shortcomings and deficiencies of existing technologies by independently developing and designing an automatic stud threading line for motor stators and its automatic stud threading process. This line enables dual-channel feeding, sorting, and transfer of screws and springs to form assemblies, and achieves cyclical alternating synchronous feeding and receiving, ensuring continuous and uninterrupted feeding of springs and screws. This effectively improves the feeding efficiency of screws and springs. Furthermore, the automatic stud threading line enables synchronous feeding and assembly of four assemblies through a rotary alternating feeding and cutting method, thereby improving the overall assembly efficiency.

[0036] This invention pertains to an automated production line for the automated assembly of electric motors. It aims to replace traditional manual assembly methods with automated processes, significantly increasing motor production capacity and yield. Specifically, this invention focuses on the screw and spring assembly process in motor manufacturing, achieving continuous and synchronous assembly of four screws and springs to maximize assembly efficiency while ensuring assembly quality. The invention comprises a stator feeding section, a screw feeding section, a spring feeding section, a material distribution and assembly section, and an assembly section. The stator feeding section uses a stator carrier as a load-bearing structure to automatically feed, transfer, load, block, position, and correct the stator, ensuring its positional stability before assembly and achieving stator positioning and correction at the assembly station. The screw and spring feeding sections are spaced apart on both sides of the material distribution and assembly section, respectively using a dual-channel feeding method to automatically feed screws and springs. The material distribution section receives the exported springs and screws, and after the springs and screws are combined to form screw and spring assemblies, the screw and spring assemblies are clamped and corrected, and then continuously exported in a cyclical material receiving and discharging manner. The assembly section is located at the discharge end of the material distribution section and the assembly station of the stator feeding section. The assembly section realizes the material receiving, transfer and feeding of screw and spring assemblies through a rotating and alternating material receiving and feeding method, and realizes the synchronous material picking and assembly of four sets of screw and spring assemblies, effectively improving the assembly efficiency.

[0037] Specifically, the stator feeding part of the present invention includes a stator feeding assembly and a feeding guide assembly. The stator guide rail of the stator feeding assembly and the feeding bracket of the feeding guide assembly are arranged perpendicularly to each other, and a carrier arm is arranged between them. A stator carrier loaded with stators is continuously supplied on the stator guide rail. After the stator carrier is transferred to the feeding bracket by the carrier arm, it is transported to the assembly station by the transmission belt. After being sensed by the carrier sensor, the blocking assembly blocks and positions it, thereby realizing the automatic feeding and transfer of stators with the stator carrier as the carrier.

[0038] The spring feeding section of this invention includes a spring feeding assembly and a spring lifting arm. The spring feeding assembly synchronously feeds springs to a spring vibration component using two spaced-apart spring vibrating discs. After the spring vibration component horizontally feeds the springs, the spring lifting arm removes the horizontally positioned springs and transports them to the material distribution assembly. The spring vibration component of this invention uses a strip-shaped spring guide seat as its feeding structure. A strip-shaped spring guide groove is formed in the middle of the spring guide seat. The spring guide groove is open at both ends and at the top. One end is used to receive the springs fed by the spring vibrating discs, and the other end is used to feed the springs. A key feature is that multiple spring positioning cylinders are provided on the sidewall near one end of the spring guide groove. The output end of each positioning cylinder is horizontally positioned perpendicular to the direction of the spring guide groove, driving a spring positioning pin connected to its output end to pass through the spring guide seat and extend into the spring guide groove. This allows the cylinder to abut against the side of the spring within the spring guide groove, thereby positioning and correcting the springs entering the spring guide groove. Simultaneously, the cylinder can also extend into the spring guide groove to block the springs entering the groove, thus controlling the spring feeding speed.

[0039] The screw feeding part of the present invention includes a screw feeding assembly and a screw handling arm. The screw feeding assembly includes a screw feeding component, a screw vibration component and a screw dispensing component. The screw feeding component includes two sets of screws that are supplied to the screw vibration component synchronously. The screw vibration component guides the screws in a straight line to the screw dispensing component for dispensing and transfer. The screws are then taken out by the screw handling arm and moved to the dispensing assembly. The special feature is that the screw distribution component of this invention is arranged perpendicular to the direction of the screw vibration component and outputs back-and-forth linear power to drive the distribution block to move back and forth in a linear motion perpendicular to the direction of the screw vibration component. This allows multiple receiving grooves spaced apart on the distribution block to connect with the screw vibration component, so that screws are guided into the receiving grooves one by one. As the distribution block moves sequentially, the screws are automatically picked up by the multiple receiving grooves. After all the receiving grooves have picked up the screws, the block moves to the waiting position for picking up the screws. The side wall of the distribution block blocks the outlet of the screw vibration component. At the waiting position for picking up the screws, the ejector cylinder located below the distribution block lifts the ejector block from below. The recessed groove on the surface of the ejector block is nested in the bottom of the screw and aligned with it. The ejector block continues to move upward to gradually lift the screw from the receiving groove, so that the screw lifting arm above can clamp and fix the screw from the receiving groove.

[0040] The material distribution assembly of this invention comprises a spring blocking assembly, a spring receiving assembly, a feeding assembly, a horizontal pushing assembly, a circulating material distribution assembly, a discharge assembly, a baffle assembly, and a direct pushing assembly. The spring blocking assembly is located at the discharge port of the spring guide groove and is used to horizontally receive and block the springs discharged from the spring guide groove. The spring blocking cylinder of the spring blocking assembly drives the L-shaped block structure of the spring blocking block to move up and down. When a spring needs to be received, the spring blocking block rises to align with the spring guide groove so that the spring flows in horizontally. After the spring blocking block receives the spring, it continues to move upward so that the spring arm can pick up the material. At the same time, the side wall of the spring baffle block blocks the discharge port of the spring guide groove to prevent the spring from slipping. The spring receiving assembly of the present invention is spaced apart on the side of the spring blocking assembly. The spring receiving assembly uses the receiving linear module as the power output to move back and forth in a straight line along the direction perpendicular to the spring guide groove. The receiving rotary seat of the spring receiving assembly is provided with multiple spring material holes spaced apart and is driven to rotate by the receiving rotary motor. When picking up a spring, the spring material holes of the receiving rotary seat rotate to the horizontal direction so that the spring arm can insert the spring clamped in the horizontal state into the spring material hole. After the multiple spring material holes have finished receiving the spring, the receiving rotary seat drives the multiple springs to rotate to the vertical direction so that the spring arm can then be vertically removed and placed into the feeding assembly. Furthermore, the side wall and bottom wall of the receiving rotary seat of the present invention are respectively provided with a first mounting hole and a second mounting hole corresponding to the spring material hole. A spring cylinder is embedded in the first mounting hole and the second mounting hole respectively. When the receiving rotary seat rotates to the horizontal direction and the spring is installed, the spring cylinder in the first mounting hole drives its output end to extend into the spring material hole so as to abut against the spring in the spring material hole from the side and fix it, preventing it from slipping out of the spring material hole during rotation. When the receiving rotary seat rotates to the vertical direction, the spring cylinder in the second mounting hole extends upward into the spring material hole and pushes the spring in the spring material hole upward so that the spring arm can pick up the material.The feeding assembly of this invention is spaced between the screw dispensing component and the spring receiving component. The feeding assembly uses a vertically positioned feeding bracket as its main structure. A through-feeding cavity is formed on the side wall of the feeding bracket, and a feeding groove with open ends is formed on the top of the feeding bracket. The bottom of the feeding groove communicates with the feeding cavity through a strip-shaped through-slot. A spring vertically lifted by the spring arm is inserted vertically into the feeding groove, and a screw lifted by the screw arm is inserted vertically from above into the spring, forming a screw and spring assembly. Furthermore, a recessed feeding groove is formed at the bottom of the feeding cavity to guide and limit a feeding slide seat horizontally positioned within the feeding cavity. A feeding positioning cylinder is horizontally mounted on the feeding slide seat, with both ends serving as output ends extending to both sides of the feeding cavity. A feeding device is connected to the output end of the feeding positioning cylinder. The positioning seat extends vertically to the outside of the feeding trough. A feeding positioning block is horizontally positioned on the side of the feeding trough, passing through the side wall of the feeding trough and moving freely in the horizontal direction. Multiple V-shaped feeding slots are spaced apart on the side wall of the feeding positioning block near the feeding trough. The feeding positioning cylinder drives the feeding positioning block to move linearly in the horizontal direction, so as to clamp the springs in the feeding trough from both sides through the feeding slots to ensure their positional stability. After all the springs are placed in the feeding slots and the screws are inserted to form screw and spring assemblies, the flat push assembly at one end of the feeding assembly pushes the feeding positioning block to drive multiple sets of screw and spring assemblies to move linearly towards the other end of the feeding trough. After the screw and spring assemblies move to the discharge position, the feeding positioning block moves outward to release the screw and spring assemblies for discharge. The circulating material distribution component of this invention is located on the outer side of the other end of the feeding component. The circulating material distribution component outputs linear power through a circulating material distribution cylinder in a direction perpendicular to the feeding groove, which is used to drive two circulating material distribution seats mounted thereon to move back and forth in a linear motion. Each of the two circulating material distribution seats has a circulating material distribution groove in the same direction as the feeding groove. The circulating material distribution cylinder drives the two circulating material distribution seats to move back and forth in a linear motion in a direction perpendicular to the feeding groove. When the circulating material distribution groove of one circulating material distribution seat connects with the feeding groove to pick up the screw and spring assembly, the other circulating material distribution seat synchronously and staggeredly discharges the screw and spring assembly, thereby realizing synchronous material reception and guidance, achieving continuous material supply without stopping the machine, and effectively improving the material supply efficiency. The discharge assembly of the present invention includes two sets, which are arranged in parallel at intervals at the discharge end of the circulating material distribution assembly. The discharge guide rails of the two sets of discharge assemblies are arranged in the same direction as the circulating material distribution trough. A discharge trough is provided in the discharge guide rail. A baffle assembly is provided between the two discharge guide rails. The baffle plate of the baffle assembly is connected to the side walls of the two discharge guide rails respectively. During the feeding process, while the circulating material distribution assembly picks up the screw and spring assembly from the feeding assembly, it simultaneously docks with the discharge trough and guides the screw and spring assembly into the discharge trough. When the circulating material distribution trough switches back and forth between the two discharge guide rails, the baffle plate seals and blocks the discharge port of the circulating material distribution trough to prevent the screw and spring assembly inside from slipping out.

[0041] The assembly part of this invention includes an assembly platform and an assembly robot. The assembly platform includes an assembly support and a transfer component. The assembly support is located at the assembly station, and the transfer component is located between the discharge component and the assembly platform. The assembly support is used to block the stator carrier that is positioned and moved to the assembly station, and to lift the stator carrier upward so that it is separated from the transmission belt of the guide component. The stator is then aligned and positioned from both sides to ensure the accuracy of the stator's position during assembly. The transfer component is used to alternately receive and remove the screw and spring assembly from the discharge component, and then rotate the screw and spring assembly to a position below the assembly robot so that the assembly robot can remove it and insert the screw and spring assembly into the stator. Specifically, the assembly support includes a lifting and positioning component and a correction and limiting component. When the stator carrier moves the stator to the assembly station, the blocking component blocks and positions the stator carrier. The lifting and positioning component located below the stator carrier moves from bottom to top, driving the lifting seat upward through the lifting cylinder. While the lifting seat lifts the stator carrier from bottom to top, the insert pins on it are inserted into the positioning holes of the stator carrier from below to position the stator carrier. The lifting seat continues to move upward, lifting the stator carrier upward and separating it from the continuously moving transmission belt. The correction and limiting component includes two sets, which are symmetrically spaced on both sides of the stator carrier. The correction cylinder of the correction and limiting component drives the arc-shaped correction block to approach the stator from the outside. By having the arc surface close to the outer wall of the stator, the limit correction of the stator is achieved. The transfer assembly of this invention includes a transfer platform located in the center and pusher components located on both sides of the transfer platform. A rotary motor is mounted on the base of the transfer platform, outputting rotational power in a horizontal plane to drive a vertically mounted rotating column to rotate. The rotating column drives the turntable located on top of the turntable to rotate. The turntable is a circular platform with multiple material slots spaced along its circumference. The outer side and top of the material slots are open for inserting screw and spring assemblies, and the bottom of the material slots is open to facilitate the bottom of the screw passing through. A key feature is that guide seats are provided on both sides of the turntable, and each guide seat contains a transfer mechanism with an L-shaped cross-section. The discharge port of the transfer trough connects to the material trough, and the inlet connects to the outer discharge assembly. The screw and spring assembly pushed out by the discharge assembly enters the transfer trough. After the screw and spring assembly enters the transfer trough, it is inverted and wrapped by the U-shaped pusher block of the pusher component from above, and then it is transferred from the transfer trough into the material trough of the turntable, realizing the transfer and distribution of screw and spring assemblies. During the distribution process, the guide seats on both sides of the turntable synchronously guide the screw and spring assembly from both sides into the material trough of the turntable. After the introduction is completed, the turntable rotates one unit angle and switches to the next empty material trough to connect with the transfer trough of the guide seat. This cycle is repeated to realize the synchronous transfer and feeding of materials through dual channels.Furthermore, the rotary motor of the present invention is provided with an outer support horizontally above it. The rotating column passes through the outer support from bottom to top and rotates freely within the outer support to avoid motion interference. The outer support extends horizontally to both sides of the turntable to support the guide seats on both sides of the turntable. At the same time, multiple support rods are provided at intervals along the outer side of the turntable on the outer support. Two symmetrically arranged limiting rings are provided at the top of the support rods. The joint of the two limiting rings corresponds to the discharge port of the guide seat and leaves a gap so that the screw and spring assembly in the rotating groove of the guide seat can enter the material groove of the turntable. The limiting rings limit the turntable from the outside to prevent the screw and spring assembly from sliding out of the material groove during the rotation of the turntable. Attached Figure Description

[0042] Figure 1 This is a block diagram of the present invention.

[0043] Figure 2 This is one of the three-dimensional structural schematic diagrams of the present invention.

[0044] Figure 3 This is the second three-dimensional structural schematic diagram of the present invention.

[0045] Figure 4 This is a three-dimensional structural diagram of the stator assembly of the present invention.

[0046] Figure 5 This is one of the three-dimensional structural diagrams of the hidden components of the present invention.

[0047] Figure 6 This is the second three-dimensional structural diagram of the present invention after the hidden components are shown.

[0048] Figure 7 This is the third three-dimensional structural diagram of the present invention with the hidden components.

[0049] Figure 8 This is the fourth three-dimensional structural diagram of the present invention with the hidden components.

[0050] Figure 9 This is a three-dimensional structural diagram of the stator feeding assembly and the material guiding assembly of the present invention.

[0051] Figure 10 This is a three-dimensional structural diagram of the material guiding component of the present invention.

[0052] Figure 11 This is one of the three-dimensional structural schematic diagrams of the stator carrier and blocking assembly of the present invention.

[0053] Figure 12 This is the second three-dimensional structural schematic diagram of the stator carrier and blocking assembly of the present invention.

[0054] Figure 13 This is one of the three-dimensional structural diagrams of the assembly robot arm of the present invention.

[0055] Figure 14 This is the second three-dimensional structural diagram of the robotic arm assembled according to the present invention.

[0056] Figure 15 This is one of the three-dimensional structural diagrams of the assembly platform and the transfer assembly platform of the present invention.

[0057] Figure 16 This is the second three-dimensional structural diagram of the assembly platform and the transfer assembly platform of the present invention.

[0058] Figure 17 This is a three-dimensional structural diagram of the assembly platform of the present invention.

[0059] Figure 18 This is one of the three-dimensional structural diagrams of the assembly support of the present invention.

[0060] Figure 19 This is the second three-dimensional structural diagram of the assembly support of the present invention.

[0061] Figure 20 This is a three-dimensional structural diagram of the correction and limiting component of the present invention.

[0062] Figure 21 This is one of the component disassembly diagrams of the correction and limiting component of the present invention.

[0063] Figure 22 This is the second schematic diagram showing the component breakdown structure of the correction and limiting assembly of the present invention.

[0064] Figure 23 This is a three-dimensional structural diagram of the transfer component of the present invention.

[0065] Figure 24 This is one of the three-dimensional structural diagrams of the hidden components of the transfer component in this invention.

[0066] Figure 25 This is the second three-dimensional structural diagram of the hidden components of the transfer component in this invention.

[0067] Figure 26 This is one of the component disassembly diagrams of the turntable in this invention.

[0068] Figure 27 This is the second schematic diagram showing the disassembled structure of the turntable in this invention.

[0069] Figure 28 This is a three-dimensional structural diagram of the turntable in this invention.

[0070] Figure 29 This is a three-dimensional structural diagram of the guide seat of the present invention.

[0071] Figure 30 This is a three-dimensional structural diagram of the feeding component of the present invention.

[0072] Figure 31 This is one of the three-dimensional structural schematic diagrams of the transfer and assembly platform of the present invention.

[0073] Figure 32 This is the second three-dimensional structural schematic diagram of the transfer and assembly platform of the present invention.

[0074] Figure 33 for Figure 32 Enlarged structural diagram at point II.

[0075] Figure 34 This is a three-dimensional structural diagram of the direct-push component of the present invention.

[0076] Figure 35 This is a three-dimensional structural diagram of the material blocking component of the present invention.

[0077] Figure 36 This is a three-dimensional structural diagram of the screw feeding assembly of the present invention.

[0078] Figure 37 This is one of the component structure diagrams of the screw feeding assembly of the present invention.

[0079] Figure 38 This is the second schematic diagram of the component structure of the screw feeding assembly of the present invention.

[0080] Figure 39 This is a three-dimensional structural diagram of the screw vibration component of the present invention.

[0081] Figure 40 This is a three-dimensional structural diagram of the screw feeding component of the present invention.

[0082] Figure 41 This is a three-dimensional structural diagram of the screw feeding component of the present invention after the component is hidden.

[0083] Figure 42 This is a three-dimensional structural diagram of the screw-operated arm of the present invention.

[0084] Figure 43 This is a three-dimensional structural diagram of the screw-operated arm component of the present invention.

[0085] Figure 44 This is a three-dimensional structural diagram of the spring feeding assembly of the present invention.

[0086] Figure 45 This is a three-dimensional structural diagram of the spring vibration component of the present invention.

[0087] Figure 46 This is one of the three-dimensional structural schematic diagrams of the spring-loaded arm of the present invention.

[0088] Figure 47 This is the second three-dimensional structural schematic diagram of the spring arm of the present invention.

[0089] Figure 48 This is one of the three-dimensional structural schematic diagrams of the screw feeding assembly and the transfer assembly platform of the present invention.

[0090] Figure 49 This is the second three-dimensional structural diagram of the screw feeding assembly and the transfer assembly platform of the present invention.

[0091] Figure 50 This is one of the three-dimensional structural schematic diagrams of the transfer and assembly platform of the present invention.

[0092] Figure 51 This is the second three-dimensional structural schematic diagram of the transfer and assembly platform of the present invention.

[0093] Figure 52 This is a three-dimensional structural diagram of the spring blocking assembly of the present invention.

[0094] Figure 53 This is a three-dimensional structural diagram of the spring receiving assembly of the present invention.

[0095] Figure 54 This is a schematic diagram of the component structure of the spring receiving assembly of the present invention.

[0096] Figure 55 This is a three-dimensional structural diagram of the material receiving rotary seat of the present invention.

[0097] Figure 56 This is a front view of the material receiving rotary seat of the present invention.

[0098] Figure 57 for Figure 56 Sectional view at point III-III.

[0099] Figure 58 This is a three-dimensional structural diagram of the push-pull component of the present invention.

[0100] Figure 59 This is a three-dimensional structural diagram of the feeding component of the present invention.

[0101] Figure 60 This is a three-dimensional structural diagram of the feeding and positioning block of the present invention.

[0102] Figure 61 This is a three-dimensional structural diagram of the circulating material distribution component of the present invention.

[0103] In the diagram: 1. Machine cover; 2. Stator feeding assembly; 3. Material guiding assembly; 4. Assembly robot; 5. Assembly platform; 6. Screw feeding assembly; 7. Screw lifting arm; 8. Spring feeding assembly; 9. Spring lifting arm; 10. Transfer assembly platform; 0. Stator assembly;

[0104] 01. Stator; 02. Spring; 03. Screw; 04. Screw socket;

[0105] 21. Stator guide rail; 22. Carrier boom;

[0106] 31. Feeding bracket; 32. Drive belt; 33. Carrier sensor; 34. Stator carrier; 35. Blocking assembly;

[0107] 341. Carrier base; 342. Support block; 343. Limiting post; A. Bearing groove; B. Blocking groove; C. Positioning socket;

[0108] 351. Blocking support; 352. Blocking cylinder; 353. Blocking push rod; 354. Blocking rotary seat; 355. Blocking wheel;

[0109] 41. Assembly bracket; 42. Transverse support bracket; 43. First transverse module; 44. First transverse seat; 45. First lifting module; 46. Second transverse module; 47. Support frame; 48. Assembly cylinder; 49. Assembly gripper; 410. Second transverse seat; 411. Second lifting module; 412. Material picking bracket; 413. Material picking cylinder; 414. Material picking gripper;

[0110] 51. Assembly stand; 52. Transfer components;

[0111] 511. Support plate; 512. Lifting cylinder; 513. Lifting column; 514. Lifting seat; 515. Insert column; 516. Guide rod; 517. Correction bracket; 518. Correction cylinder; 519. Arc-shaped correction block; 5110. Mounting plate; 5111. Connecting seat; 5112. Locking seat; 5113. Locking rod; D. Mounting groove; E. Mounting slot; F. Locking hole;

[0112] 521. Transfer table; 522. Material pushing component;

[0113] 5211, Turntable base; 5212, Rotary motor; 5213, Rotary seat; 5214, Outer support; 5215, Rotating column; 5216, Support rod; 5217, Limit ring; 5218, Turntable; 5219, Guide seat; H, Material trough; I, Inlet; J, Transfer trough; K, Outlet;

[0114] 5221. Pusher bracket; 5222. Pusher cylinder; 5223. Pusher rod; 5224. Pusher block;

[0115] 101. Discharge assembly; 102. Direct push assembly; 103. Material stop assembly;

[0116] 1011. Discharge vibrating seat; 1012. Discharge guide rail; L. Discharge chute;

[0117] 1021. Direct-push bracket; 1022. Direct-push cylinder; 1023. Direct-push plate; 1024. Direct-push seat; 1025. Direct-push block; N. Mounting groove;

[0118] 1031, Material stop support; 1032, Material stop plate; M, Insert groove;

[0119] 61. Screw feeding component; 62. Screw vibration component; 63. Screw dispensing component;

[0120] 621. Vibration bracket; 622. Screw vibrator; 623. Vibration cover plate; 624. Screw guide rail;

[0121] 631. Material distribution bracket; 632. Material distribution motor; 633. Material distribution belt; 634. Material distribution connecting seat; 635. Material distribution block; 636. Ejection cylinder; 637. Ejection block; P. Connecting groove; R. Receiving groove;

[0122] 71. Screw-operated arm bracket; 72. First arm module; 73. First arm slide; 74. Second arm module; 75. Screw-operated arm component;

[0123] 751. Second lever arm slide; 752. Third lever arm module; 753. Spring support plate; 754. Buffer spring; 755. Third lever arm slide; 756. Screw clamping cylinder; 757. Screw clamping block;

[0124] 81. Spring feeding bracket; 82. Spring vibrating plate; 83. Spring vibration component;

[0125] 831. Spring guide seat; 832. Spring positioning cylinder; 833. Spring positioning post; S. Spring guide groove;

[0126] 91. Spring-loaded boom support; 92. First boom lifting module; 93. Boom rotary motor; 94. Boom lateral movement cylinder; 95. Boom lateral movement support; 96. Second boom lifting module; 97. Spring-loaded boom slide; 98. Spring-loaded clamping cylinder; 99. Spring clamping block; 910. Material box;

[0127] 104. Circulating material distribution assembly; 105. Spring blocking assembly; 106. Spring receiving assembly; 107. Horizontal pushing assembly; 108. Feeding assembly;

[0128] 1051. Spring stop support; 1052. Spring stop cylinder; 1053. Spring stop seat; 1054. Spring stop block;

[0129] 1061. Receiving linear module; 1062. Receiving slide; 1063. Receiving support plate; 1064. Receiving rotary motor; 1065. Receiving rotary seat; 1066. Spring cylinder; U. Spring material hole; V. First mounting hole; W. Second mounting hole; X. Third mounting hole; T. Rotary connection hole;

[0130] 1071. Horizontal push bracket; 1072. Horizontal push cylinder; 1073. Horizontal push rod; 1074. Horizontal push block;

[0131] 1081. Feeding bracket; 1082. Feeding cavity; 1083. Feeding chute; 1084. Feeding slide; 1085. Feeding positioning cylinder; 1086. Feeding positioning seat; 1087. Feeding positioning block; 1088. Feeding groove; 1089. Feeding slot;

[0132] 1041. Circulating material distribution bracket; 1042. Circulating material distribution cylinder; 1043. Circulating material distribution seat; 1044. Circulating material distribution trough. Detailed Implementation

[0133] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0134] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0135] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0136] like Figures 1 to 59As shown, this invention proposes an automatic stator threading line for automatically assembling screw and spring assemblies on a motor stator. It includes a stator feeding section, a screw feeding section, a spring feeding section, a material distribution and assembly section, and an assembly section. The stator feeding section is arranged along an L-shaped line, with an assembly station on one side. The assembly section is located at the assembly station. The material distribution and assembly section is located on the side of the assembly section. The screw feeding section and the spring feeding section are correspondingly located on opposite sides of the material distribution and assembly section. After the screw feeding section and the spring feeding section respectively guide screw 03 and spring 02, they are assembled into screw and spring assemblies at the material distribution and assembly section. The material distribution and assembly section then guides the screw and spring assemblies to the assembly section. At the assembly section, screws and spring assemblies are assembled into the stator 01 to form stator assembly 0. The material distribution assembly includes a spring receiving assembly 106, a flat pushing assembly 107, a feeding assembly 108, a circulating material distribution assembly 104, a blocking assembly 103, a discharging assembly 101, and a direct pushing assembly 102. The spring receiving assembly 106 and the feeding assembly 108 are spaced apart in the same direction. The spring receiving assembly 106 receives the spring 02 from the spring feeding section and transfers it into the feeding assembly 108. The screw 03 from the screw feeding section is inserted from above into the spring 02 on the feeding assembly 108, forming a screw and spring assembly. The feeding assembly 108 simultaneously clamps and fixes at least two screws and springs. The spring assembly; the flat-push component 107 is located at one end of the feeding component 108 and outputs linear power along the assembly direction, synchronously pushing at least two screws and spring assemblies on the feeding component 108 toward the assembly direction; the circulating distribution component 104 is located at the other end of the feeding component 108, and includes two parallel and spaced circulating distribution grooves 1044, which move back and forth in a linear motion perpendicular to the feeding component 108, alternately picking up screws and spring assemblies from the feeding component 108; the discharge component 101 is located between the circulating distribution component 104 and the assembly, and after the circulating distribution component 104 picks up the screws and spring assemblies, it guides them into the discharge section. Inside component 101; the direct push component 102 is located on the side of the discharge component 101 and is used to push the screw and spring assembly into the assembly part; the assembly part includes an assembly platform 5 and an assembly robot 4, wherein the assembly platform 5 includes an assembly support 51 and a transfer component 52, the assembly support 51 is located at the assembly station and is used to correct and position the stator 01 to be assembled; the transfer component 52 is spaced between the assembly support 51 and the discharge component 101 and is used to pick up the screw and spring assembly and then rotate and cut it; the assembly robot 4 is mounted above the assembly support 51 and the transfer component 52, and the assembly robot 4 simultaneously picks up at least two screw and spring assemblies from the transfer component 52 and then assembles them onto the stator 01.

[0137] like Figure 4 As shown, the stator 01 of the present invention has four screw holes 04 on its outer edge seat; the screw and spring assembly includes a spring 02 and a screw 03, wherein the screw 03 is inserted into the spring 02 from above, and the lower end of the screw 03 extends downward to the outside of the spring 02 so as to be inserted into the screw hole 04, and is assembled to form a stator assembly 0.

[0138] Furthermore, the stator feeding section of the present invention includes a stator feeding assembly and a guiding assembly. The stator guide rail of the stator feeding assembly and the feeding bracket of the guiding assembly are arranged perpendicularly to each other, and a carrier arm is provided between them. A stator carrier loaded with stators is continuously supplied on the stator guide rail. After the stator carrier is transferred to the feeding bracket by the carrier arm, it is transported to the assembly station by the transmission belt. After being sensed by the carrier sensor, the blocking assembly blocks and positions it, thereby realizing automatic stator feeding and transfer with the stator carrier as the carrier.

[0139] The material distribution assembly of this invention comprises a spring blocking assembly, a spring receiving assembly, a feeding assembly, a horizontal pushing assembly, a circulating material distribution assembly, a discharge assembly, a baffle assembly, and a direct pushing assembly. The spring blocking assembly is located at the discharge port of the spring guide groove and is used to horizontally receive and block the springs discharged from the spring guide groove. The spring blocking cylinder of the spring blocking assembly drives the L-shaped block structure of the spring blocking block to move up and down. When a spring needs to be received, the spring blocking block rises to align with the spring guide groove so that the spring flows in horizontally. After the spring blocking block receives the spring, it continues to move upward so that the spring arm can pick up the material. At the same time, the side wall of the spring baffle block blocks the discharge port of the spring guide groove to prevent the spring from slipping. The spring receiving assembly of the present invention is spaced apart on the side of the spring blocking assembly. The spring receiving assembly uses the receiving linear module as the power output to move back and forth in a straight line along the direction perpendicular to the spring guide groove. The receiving rotary seat of the spring receiving assembly is provided with multiple spring material holes spaced apart and is driven to rotate by the receiving rotary motor. When picking up a spring, the spring material holes of the receiving rotary seat rotate to the horizontal direction so that the spring arm can insert the spring clamped in the horizontal state into the spring material hole. After the multiple spring material holes have finished receiving the spring, the receiving rotary seat drives the multiple springs to rotate to the vertical direction so that the spring arm can then be vertically removed and placed into the feeding assembly. Furthermore, the side wall and bottom wall of the receiving rotary seat of the present invention are respectively provided with a first mounting hole and a second mounting hole corresponding to the spring material hole. A spring cylinder is embedded in the first mounting hole and the second mounting hole respectively. When the receiving rotary seat rotates to the horizontal direction and the spring is installed, the spring cylinder in the first mounting hole drives its output end to extend into the spring material hole so as to abut against the spring in the spring material hole from the side and fix it, preventing it from slipping out of the spring material hole during rotation. When the receiving rotary seat rotates to the vertical direction, the spring cylinder in the second mounting hole extends upward into the spring material hole and pushes the spring in the spring material hole upward so that the spring arm can pick up the material.The feeding assembly of this invention is spaced between the screw dispensing component and the spring receiving component. The feeding assembly uses a vertically positioned feeding bracket as its main structure. A through-feeding cavity is formed on the side wall of the feeding bracket, and a feeding groove with open ends is formed on the top of the feeding bracket. The bottom of the feeding groove communicates with the feeding cavity through a strip-shaped through-slot. A spring vertically lifted by the spring arm is inserted vertically into the feeding groove, and a screw lifted by the screw arm is inserted vertically from above into the spring, forming a screw and spring assembly. Furthermore, a recessed feeding groove is formed at the bottom of the feeding cavity to guide and limit a feeding slide seat horizontally positioned within the feeding cavity. A feeding positioning cylinder is horizontally mounted on the feeding slide seat, with both ends serving as output ends extending to both sides of the feeding cavity. A feeding device is connected to the output end of the feeding positioning cylinder. The positioning seat extends vertically to the outside of the feeding trough. A feeding positioning block is horizontally positioned on the side of the feeding trough, passing through the side wall of the feeding trough and moving freely in the horizontal direction. Multiple V-shaped feeding slots are spaced apart on the side wall of the feeding positioning block near the feeding trough. The feeding positioning cylinder drives the feeding positioning block to move linearly in the horizontal direction, so as to clamp the springs in the feeding trough from both sides through the feeding slots to ensure their positional stability. After all the springs are placed in the feeding slots and the screws are inserted to form screw and spring assemblies, the flat push assembly at one end of the feeding assembly pushes the feeding positioning block to drive multiple sets of screw and spring assemblies to move linearly towards the other end of the feeding trough. After the screw and spring assemblies move to the discharge position, the feeding positioning block moves outward to release the screw and spring assemblies for discharge. The circulating material distribution component of this invention is located on the outer side of the other end of the feeding component. The circulating material distribution component outputs linear power through a circulating material distribution cylinder in a direction perpendicular to the feeding groove, which is used to drive two circulating material distribution seats mounted thereon to move back and forth in a linear motion. Each of the two circulating material distribution seats has a circulating material distribution groove in the same direction as the feeding groove. The circulating material distribution cylinder drives the two circulating material distribution seats to move back and forth in a linear motion in a direction perpendicular to the feeding groove. When the circulating material distribution groove of one circulating material distribution seat connects with the feeding groove to pick up the screw and spring assembly, the other circulating material distribution seat synchronously and staggeredly discharges the screw and spring assembly, thereby realizing synchronous material reception and guidance, achieving continuous material supply without stopping the machine, and effectively improving the material supply efficiency. The discharge assembly of the present invention includes two sets, which are arranged in parallel at intervals at the discharge end of the circulating material distribution assembly. The discharge guide rails of the two sets of discharge assemblies are arranged in the same direction as the circulating material distribution trough. A discharge trough is provided in the discharge guide rail. A baffle assembly is provided between the two discharge guide rails. The baffle plate of the baffle assembly is connected to the side walls of the two discharge guide rails respectively. During the feeding process, while the circulating material distribution assembly picks up the screw and spring assembly from the feeding assembly, it simultaneously docks with the discharge trough and guides the screw and spring assembly into the discharge trough. When the circulating material distribution trough switches back and forth between the two discharge guide rails, the baffle plate seals and blocks the discharge port of the circulating material distribution trough to prevent the screw and spring assembly inside from slipping out.

[0140] like Figures 2 to 3 , Figures 9 to 10 As shown in the figure, as an embodiment of the present invention, the stator feeding part of this embodiment includes a stator feeding assembly 2 and a guiding assembly 3. The stator feeding assembly 2 includes a stator guide rail 21 and a carrier arm 22. The stator guide rail 21 is arranged in a straight line, and one end of it is connected to an external feeding mechanism for guiding the stator carrier 34. The guiding assembly 3 includes a feeding bracket 31, a transmission belt 32 and a blocking assembly 35. The feeding bracket 31 is vertically arranged at the other end of the stator guide rail 21. The carrier arm 22 is arranged at the connection between the feeding bracket 31 and the stator guide rail 21 for transporting the stator carrier 34 at the stator guide rail 21 to the feeding position. Inside the support 31; the middle of the feeding support 31 is provided with a linearly extending material channel, and the two inner sides of the material channel are driven by a motor to move linearly along the direction of the material channel. The stator carrier 34 is placed on the drive belt 32 and is driven by the drive belt 32 to move linearly within the material channel. The blocking component 35 is set at the assembly station of the feeding support 31 to block and limit the movement of the stator carrier 34. At least two carrier sensors 33 are spaced apart on the side of the assembly station to sense and detect the stator carrier 34 being driven, so that the blocking component 35 can start the blocking action. The outer cover of the carrier arm 22 is provided with a machine cover 1 for protection.

[0141] like Figures 11 to 12 As shown, the stator carrier 34 of the present invention includes a carrier base 341, a support block 342, and a limiting post 343. The carrier base 341 is horizontally arranged, and a blocking groove B is provided on one side wall of the carrier base 341 so that the blocking assembly 35 can block the stator carrier 34. The support block 342 is arranged on the carrier base 341, and a recessed bearing groove A is provided on the side wall of the support block 342 for placing and supporting the stator 01. The limiting post 343 is vertically arranged in the middle of the carrier base 341 and protrudes upward. When the stator 01 is placed in the bearing groove A, the limiting post 343 is inserted from the through hole in the middle of the stator 01 so as to guide and limit the stator 01. The plate of the carrier base 341 is also provided with a plurality of vertically penetrating positioning holes C so that the insertion post 515 of the assembly support 51 is inserted from bottom to top at the assembly station to guide and limit the stator carrier 34 during the process of lifting it.

[0142] The blocking assembly 35 of the present invention includes a blocking support 351, a blocking cylinder 352, a blocking top rod 353, a blocking rotating seat 354, and a blocking wheel 355. The blocking support 351 is disposed at the assembly station and located below the stator carrier 34. The blocking cylinder 352 is disposed on the blocking support 351 with its output end facing upward. The blocking top rod 353 is disposed on the output end of the blocking cylinder 352. The blocking rotating seat 354 is a triangular block, with its first corner rotatably connected to the blocking support 351 and supported by a vertically arranged spring. The blocking wheel 355 is rotatably disposed at the second corner. In its natural state, the spring force pushes upward, causing the blocking wheel 355 to lift upward and block the stator carrier 34. The second triangle of the blocking rotating seat 354 is located above the blocking top rod 353 and is driven upward by the blocking top rod 353 to rotate upward, causing the blocking wheel 355 to rotate downward, thereby releasing the blocking stator carrier 34.

[0143] like Figures 13 to 14 As shown, the assembly robot of the present invention includes an assembly bracket 41, a traversing component, a material handling component, and an assembly component. The assembly bracket 41 is mounted between an assembly support platform 51 and a transfer component 52. The traversing component is disposed on the side wall of the assembly bracket 41 and outputs linear power along the distance between the assembly support platform 51 and the transfer component 52. The material handling component and the assembly component are respectively connected to the traversing component and are driven by the traversing component to move back and forth in a linear motion. The material handling component removes a screw and spring assembly from the transfer component 52 and places it on the stator 01 of the assembly support platform 51. The assembly component clamps the screw and spring assembly and assembles it into the stator 01.

[0144] The transverse assembly includes a transverse support 42, a first transverse module 43, a first transverse seat 44, and a second transverse seat 410. The transverse support 42 is horizontally mounted on the assembly support 41. The first transverse module 43 is horizontally mounted on the side wall of the transverse support 42. The first transverse seat 44 and the second transverse seat 410 are slidably connected to the output end of the first transverse module 43. The assembly assembly is mounted on the first transverse seat 44. The material handling assembly is mounted on the second transverse seat 410.

[0145] The assembly components include a first lifting module 45, a second transverse module 46, a support frame 47, assembly cylinders 48, and assembly grippers 49. The first lifting module 45 is mounted on the side wall of the first transverse support 44 and outputs power vertically. The second transverse module 46 is horizontally mounted on the output end of the first lifting module 45 and outputs power perpendicular to the transverse support 42. The support frame 47 has a U-shaped structure, with its rear side wall connected to the output end of the second transverse module 46. Two outwardly extending horizontal support plates are provided on the front side wall of the support frame 47. The assembly cylinders 48 are arranged in pairs, with each pair of cylinders mounted on one of the two horizontal support plates. The assembly grippers 49 are connected to the output ends of the assembly cylinders 48 and, driven by the cylinders, grip the screw and spring assembly and insert it into the stator 01.

[0146] The material handling assembly includes a second lifting module 411, a material handling bracket 412, a material handling cylinder 413, and a material handling gripper 414. The second lifting module 411 is vertically mounted on the side wall of the second transverse seat 410. The material handling bracket 412 is connected to the output end of the second lifting module 411. Four material handling cylinders 413 are respectively mounted at the bottom of the material handling bracket 412 at the four corners and are vertically mounted. The material handling gripper 414 is connected to the output end of the bottom of the material handling cylinder 413 and is driven by the material handling cylinder 413 to clamp or loosen the screw and spring assembly.

[0147] like Figures 2 to 3 , Figure 42 As shown in the figure, as an embodiment of the present invention, the spring feeding part of this embodiment includes a spring feeding assembly 8, a spring blocking assembly 105, and a spring lifting arm 9. The spring feeding assembly 8 includes a spring feeding bracket 81, a spring vibrating plate 82, and a spring vibration component 83. The spring feeding bracket 81 is disposed on the side of the material distribution assembly part. Two spring vibrating plates 82 are spaced apart inside the spring feeding bracket 81. The spring vibrating plates 82 store the springs 02 to be assembled and guide the springs 02 out by vibration. The spring vibration component 83 includes two sets of spring vibration components 83. 3 is connected to the discharge ports of the two spring vibrating discs 82 respectively, and is used to receive the spring 02 that is discharged; the spring blocking assembly 105 is set outside the discharge port of the spring vibrating component 83, and is used to block and support the spring 02 discharged horizontally by the spring vibrating component 83; the spring lifting arm 9 is set outside the spring blocking assembly 105, and is used to take out the horizontal spring 02 from the spring blocking assembly 105 and transport it into the spring receiving assembly 106. After the spring receiving assembly 106 is rotated to the vertical direction, the spring lifting arm 9 transports the vertical spring 02 into the feeding assembly 108.

[0148] like Figure 43 As shown, the spring vibration component 83 of the present invention includes a spring vibration seat, a spring guide seat 831, a spring positioning cylinder 832, and a spring positioning column 833. The spring vibration seat is disposed outside the outlet of the spring vibration disk 82 to provide vibration force. The spring guide seat 831 is disposed on the spring vibration seat and is a strip-shaped seat with a horizontally extending spring guide groove S inside. One end of the spring guide groove S is connected to the outlet of the spring vibration disk 82, and the other end is connected to the spring... The spring blocking assembly 105 is connected, and the spring 02 led out by the spring vibrating plate 82 enters the spring guide groove S and is horizontally and linearly transmitted in the spring guide groove S; the spring positioning cylinder 832 includes at least two, and the at least two spring positioning cylinders 832 are horizontally arranged on the side wall of the spring guide seat 831; the spring positioning column 833 is connected to the output end of the spring positioning cylinder 832 and extends horizontally through the spring guide seat 831 into the spring guide groove S, and is used to control and block the spring 02 entering the guide groove S.

[0149] like Figure 50 As shown, the spring blocking assembly 105 of the present invention includes a spring blocking support 1051, a spring blocking cylinder 1052, a spring blocking seat 1053, and a spring blocking block 1054. The spring blocking support 1051 is vertically disposed outside the discharge port of the spring vibration component 83. The spring blocking cylinder 1052 is vertically disposed on the side wall of the spring blocking support 1051, with its output end facing upward. The spring blocking seat 1053 is disposed on the output end of the spring blocking cylinder 1052 and is driven to move up and down by the spring blocking cylinder 1052. The spring blocking block 1054 is disposed on the spring blocking seat 1053, and its side is provided with an upwardly extending vertical baffle. The spring O2 horizontally discharged from the spring vibration component 83 enters the spring blocking block 1054 and is blocked and limited by the vertical baffle.

[0150] like Figures 44 to 45As shown, the spring-loaded lifting arm 9 of the present invention includes a spring-loaded lifting arm support 91, a first lifting arm lifting module 92, a lifting arm rotary motor 93, a lifting arm lateral movement cylinder 94, a lifting arm lateral movement support 95, a second lifting arm lifting module 96, a spring-loaded lifting arm slide 97, a spring clamping cylinder 98, and a spring clamping block 99. The spring-loaded lifting arm support 91 is disposed on the side of the spring blocking assembly 105; the first lifting arm lifting module 92 is disposed on the side wall of the spring-loaded lifting arm support 91 and outputs power in the vertical direction; the lifting arm rotary motor 93 is connected to the output end of the first lifting arm lifting module 92 and outputs rotational power in the horizontal plane; the lifting arm lateral movement cylinder 94 is horizontally disposed on the output end of the lifting arm rotary motor 93 and outputs power horizontally; the lifting arm... The transverse support 95 is vertically connected to the output end of the transverse cylinder 94 of the boom; the second boom lifting module 96 is set on the side wall of the transverse support 95 of the boom and outputs power in the vertical direction; the spring boom slide 97 is connected to the output end of the second boom lifting module 96 and is driven by the second boom lifting module 96 to move up and down; the spring clamping cylinder 98 includes at least two, and the at least two spring clamping cylinders 98 are arranged side by side at the bottom of the spring boom slide 97, with the output end facing downward; the spring clamping block 99 is set on the output end of the spring clamping cylinder 98 and clamps the spring 02 by the spring clamping cylinder 98; the lower part of the spring boom support 91 is also provided with a material box 910 for storing the spring 02 that fails the test.

[0151] The spring feeding section of this invention includes a spring feeding assembly and a spring lifting arm. The spring feeding assembly synchronously feeds springs to a spring vibration component using two spaced-apart spring vibrating discs. After the spring vibration component horizontally feeds the springs, the spring lifting arm removes the horizontally positioned springs and transports them to the material distribution assembly. The spring vibration component of this invention uses a strip-shaped spring guide seat as its feeding structure. A strip-shaped spring guide groove is formed in the middle of the spring guide seat. The spring guide groove is open at both ends and at the top. One end is used to receive the springs fed by the spring vibrating discs, and the other end is used to feed the springs. A key feature is that multiple spring positioning cylinders are provided on the sidewall near one end of the spring guide groove. The output end of each positioning cylinder is horizontally positioned perpendicular to the direction of the spring guide groove, driving a spring positioning pin connected to its output end to pass through the spring guide seat and extend into the spring guide groove. This allows the cylinder to abut against the side of the spring within the spring guide groove, thereby positioning and correcting the springs entering the spring guide groove. Simultaneously, the cylinder can also extend into the spring guide groove to block the springs entering the groove, thus controlling the spring feeding speed.

[0152] like Figure 6 , Figures 34 to 36As shown in the figure, as an embodiment of the present invention, the screw feeding part of this embodiment includes a screw feeding assembly 6 and a screw lifting arm 7. The screw feeding assembly 6 includes a screw feeding component 61, a screw vibration component 62, and a screw distributing component 63. The screw feeding component 61 includes two sets, which are arranged at intervals to automatically supply and discharge the screws 03 to be assembled. The screw vibration component 62 is arranged at the discharge end of the screw feeding component 61 to pick up the screws 03 and discharge them one by one in a straight line. The screw distributing component 63 is arranged at the discharge end of the screw vibration component 62 in a direction perpendicular to the screw vibration component 62, and picks up the screws 03 one by one while moving in a direction perpendicular to the screw vibration component 62. The screw lifting arm 7 is set between the screw distributing component 63 and the feeding assembly 108 to remove the screws 03 from the screw distributing component 63 and insert them into the vertically arranged springs 02 in the feeding assembly 108.

[0153] like Figure 37 As shown, the screw vibration component 62 of the present invention includes a vibration bracket 621, a screw vibrator 622, a vibration cover plate 623, and a screw guide rail 624. The vibration bracket 621 is disposed at the discharge end of the screw feeding component 61; the screw vibrator 622 is disposed on the vibration bracket 621; the screw guide rail 624 is disposed on the side of the screw vibrator 622 and extends horizontally outward. A screw guide groove extending horizontally in a straight line is formed in the screw guide rail 624. The screw guide groove is open at both ends. One end is connected to the discharge end of the screw feeding component 61 for receiving the screw 03 discharged by the screw feeding component 61 in a vertical state. The other end of the screw guide groove is connected to the screw distribution component 63; the vibration cover plate 623 is horizontally disposed above the screw guide rail 624.

[0154] like Figures 38 to 39As shown, the screw distribution component 63 of the present invention includes a distribution bracket 631, a distribution motor 632, a distribution belt 633, a distribution connecting seat 634, a distribution block 635, an ejection cylinder 636, and an ejection block 637. The distribution bracket 631 is disposed at the discharge end of the screw vibration component 62. A mating groove P is formed on one side wall of the distribution bracket 631 near the screw vibration component 62, and a screw guide rail 624 passes horizontally through the mating groove P. The distribution motor 632 is disposed at the discharge end of the screw vibration component 62. The material distribution belt 633 is horizontally mounted on the material distribution bracket 631 with its output end facing upwards, perpendicular to the direction of the screw vibration component 62. One end of the material distribution belt 633 is sleeved on the output shaft of the material distribution motor 632, and the other end is sleeved on the rotating wheel mounted on the material distribution bracket 631. It is driven by the material distribution motor 632 to move in the direction perpendicular to the screw vibration component 62. The material distribution connecting seat 634 is slidably mounted on the material distribution bracket 631 in the direction perpendicular to the direction of the screw vibration component 62. The material support 631 is connected to the material distribution belt 633 and moves linearly with the material distribution belt 633; ​​the material distribution block 635 is set on the side of the material distribution connecting seat 634, and the material distribution block 635 has at least two receiving grooves R on the side near the screw vibration component 62. The side and the upper and lower ends of the receiving grooves R are open surfaces. When the material distribution block 635 moves with the material distribution connecting seat 634, the receiving grooves R align with the docking grooves P, so that the screw 03 enters the receiving grooves R; the ejection cylinder 636 is provided with The ejector block 637 is positioned on the side of the docking groove P with its output end facing upwards. The ejector block 637 is horizontally positioned on the output end of the ejector cylinder 636. The ejector block 637 has at least two inwardly recessed grooves corresponding to the receiving groove R. After the receiving groove R of the material distribution block 635 receives the screw 03, it drives the screw 03 to move above the ejector block 637 and causes the lower end of the screw 03 to slide into the groove of the ejector block 637. The ejector block 637 moves upwards, pushing the screw 03 upwards from the receiving groove R.

[0155] like Figures 40 to 41 As shown, the screw lifting arm 7 of the present invention includes a screw lifting arm bracket 71, a first lifting arm module 72, a first lifting arm slide 73, a second lifting arm module 74, and a screw lifting arm component 75. The screw lifting arm bracket 71 is mounted between the screw distribution component 63 and the feeding assembly 108 in a direction perpendicular to the screw distribution component 63. The first lifting arm module 72 is mounted on the screw lifting arm bracket 71. The first lifting arm slide 73 is horizontally mounted on the output end of the first lifting arm module 72 in a direction perpendicular to the first lifting arm module 72. The second lifting arm module 74 is horizontally mounted on the first lifting arm slide 73 and outputs linear power in a direction perpendicular to the first lifting arm module 72. The screw lifting arm component 75 is mounted on the output end of the second lifting arm module 74.

[0156] The screw lifting arm component 75 includes a second lifting arm slide 751, a third lifting arm module 752, a spring support plate 753, a buffer spring 754, a third lifting arm slide 755, a screw clamping cylinder 756, and a screw clamping block 757. The second lifting arm slide 751 is vertically mounted on the output end of the second lifting arm module 754; the third lifting arm module 752 is mounted on the side wall of the second lifting arm slide 751 and outputs power vertically; the third lifting arm slide 755 is connected to the output end of the third lifting arm module 752; the spring support plate 753... The second arm slide 751 is horizontally mounted on its side wall; the buffer spring 754 is vertically mounted, with its upper end connected to the spring support plate 753 and its lower end connected to the third arm slide 755, for buffering the third arm slide 755; the screw clamping cylinder 756 includes at least two, which are located at the bottom of the third arm slide 755 with their output ends facing downwards; the screw clamping block 757 is connected to the output end of the screw clamping cylinder 756 and is driven by the screw clamping cylinder 756 to clamp or release the screw 03.

[0157] The screw feeding part of the present invention includes a screw feeding assembly and a screw handling arm. The screw feeding assembly includes a screw feeding component, a screw vibration component and a screw dispensing component. The screw feeding component includes two sets of screws that are supplied to the screw vibration component synchronously. The screw vibration component guides the screws in a straight line to the screw dispensing component for dispensing and transfer. The screws are then taken out by the screw handling arm and moved to the dispensing assembly. The special feature is that the screw distribution component of this invention is arranged perpendicular to the direction of the screw vibration component and outputs back-and-forth linear power to drive the distribution block to move back and forth in a linear motion perpendicular to the direction of the screw vibration component. This allows multiple receiving grooves spaced apart on the distribution block to connect with the screw vibration component, so that screws are guided into the receiving grooves one by one. As the distribution block moves sequentially, the screws are automatically picked up by the multiple receiving grooves. After all the receiving grooves have picked up the screws, the block moves to the waiting position for picking up the screws. The side wall of the distribution block blocks the outlet of the screw vibration component. At the waiting position for picking up the screws, the ejector cylinder located below the distribution block lifts the ejector block from below. The recessed groove on the surface of the ejector block is nested in the bottom of the screw and aligned with it. The ejector block continues to move upward to gradually lift the screw from the receiving groove, so that the screw lifting arm above can clamp and fix the screw from the receiving groove.

[0158] like Figures 51 to 55As shown, in one embodiment of the present invention, the spring receiving assembly 106 includes a receiving linear module 1061, a receiving slide 1062, a receiving support plate 1063, a receiving rotary motor 1064, a receiving rotary seat 1065, and a spring cylinder 1066. The receiving linear module 1061 is horizontally arranged; the receiving slide 1062 is disposed on the output end of the receiving linear module 1061; the receiving support plate 1063 comprises two plates, which are arranged parallel to each other on the receiving slide 1062; the receiving rotary seat 1065 is horizontally disposed between the two receiving support plates 1063, with both ends of the receiving rotary seat 1065 rotatably connected to the two receiving support plates 1063; the receiving rotary motor 1064 is disposed outside the receiving support plate 1063. On the side wall, the output end passes through the receiving support plate 1063 and connects to the receiving rotary seat 1065; the receiving rotary seat 1065 has at least two spring material holes U, one end of the spring material hole U is open for receiving the spring O2, the side of the spring material hole U has a first mounting hole V, and the bottom of the spring material hole U has a second mounting hole W and a third mounting hole X; the spring cylinder 1066 includes at least two, and the at least two spring cylinders 1066 are respectively embedded in the first mounting hole X and the second mounting hole W, and the output end is set towards the spring material hole U, wherein the spring cylinder 1066 in the first mounting hole X is used to clamp and limit the spring O2 in the spring material hole U from the side, and the spring cylinder 1066 in the second mounting hole W is used to push the spring O2 outward for removal; the third mounting hole X is used for installation connection.

[0159] like Figures 57 to 58As shown, the feeding assembly 108 of the present invention includes a feeding bracket 1081, a feeding slide 1084, a feeding positioning cylinder 1085, a feeding positioning seat 1086, and a feeding positioning block 1087. The feeding bracket 1081 is vertically arranged, and a through feeding cavity 1082 is formed on its side wall. A recessed feeding groove 1083 is formed at the lower part of the feeding cavity 1082, and a vertically extending feeding channel 1088 is formed at the top of the feeding cavity 1082. A strip-shaped through groove with a width smaller than the feeding channel 1088 is formed at the bottom of the feeding groove 1088 to communicate with the feeding cavity 1082 below. After a spring 02 is placed in the feeding groove 1088, a screw 03 is inserted into the spring 02 from above, forming a screw and spring assembly. The feeding slide 1084 is horizontally arranged in the feeding cavity 1081. The feeding positioning cylinder 1085 is horizontally arranged on the feeding slide 1084 in a direction perpendicular to the feeding groove 1088, and both ends are output ends; the feeding positioning seat 1086 includes two, and the two feeding positioning seats 1086 are vertically connected to the output ends of the feeding positioning cylinder 1085, and are driven by the feeding positioning cylinder 1085 to approach or move away from the feeding groove 1088; the feeding positioning block 1087 is horizontally arranged on the top of the feeding positioning seat 1086, and extends freely through the side wall of the feeding bracket 1081 into the feeding groove 1088; the feeding positioning block 1087 is provided with at least two V-shaped feeding slots 1089 on the side near the feeding groove 1088, for clamping the screw and spring assembly in the feeding groove 1088 from the side.

[0160] like Figure 56 As shown, the flat push assembly 107 of the present invention includes a flat push bracket 1071, a flat push cylinder 1072, a flat push rod 1073, and a flat push block 1074. The flat push bracket 1071 is disposed on the outside of the feeding assembly 108. The flat push cylinder 1072 is horizontally disposed on the flat push bracket 1071, and its output end is disposed in the direction of the feeding assembly 108. The flat push rod 1073 is connected to the output end of the flat push cylinder 1072 and extends horizontally outward. The outer end of the flat push rod 1073 extends horizontally and vertically downward in sequence along a direction perpendicular to the flat push rod 1073. The flat push block 1074 is disposed on the outer end of the flat push rod 1073 and is used to push the screw and spring assembly in the feeding assembly 108 to move linearly.

[0161] like Figure 59As shown, the circulating material distribution assembly 104 of the present invention includes a circulating material distribution bracket 1041, a circulating material distribution cylinder 1042, and a circulating material distribution seat 1043. The circulating material distribution bracket 1041 is disposed at the discharge end of the feeding assembly 108. The circulating material distribution cylinder 1042 is disposed on the circulating material distribution bracket 1041 and outputs linear power in a direction perpendicular to the feeding groove 1088. The circulating material distribution seat 1043 includes two seats, which are spaced apart on the circulating material distribution cylinder 1042 and driven by the circulating material distribution cylinder 1042 to move back and forth in a linear direction perpendicular to the feeding groove 1088, so as to alternately dock with the feeding groove 1088, so that the screw and spring assembly in the feeding groove 1088 is guided into the circulating material distribution groove 1044 opened on the circulating material distribution seat 1043.

[0162] like Figures 29 to 30 , Figures 46 to 49 As shown in the figure, as an embodiment of the present invention, the discharge component 101, the direct push component 102, the blocking component 103, the circulating distribution component 104, the spring blocking component 105, the spring receiving component 106, the flat push component 107, and the feeding component 108 of the present invention constitute a transfer assembly platform 10. The transfer assembly platform 10 performs functions such as spring receiving, screw receiving, screw and spring combination, and cyclical distribution and feeding of screw and spring combination components.

[0163] like Figures 18 to 19 As shown, in one embodiment of the present invention, the assembly support 51 is disposed on the material guiding component 3 of the stator feeding section. The assembly support 51 includes a lifting and positioning component and a correction and limiting component. The lifting and positioning component is disposed at the assembly station. The lifting and positioning component moves upward to lift the stator carrier 34 upward so that it is disengaged from the moving transmission belt and to position and fix the stator carrier 34. The correction and limiting component includes two sets, which are disposed on both sides of the lifting and positioning component to clamp and correct the stator 01 in the stator carrier 34 after lifting and positioning.

[0164] The lifting and positioning assembly includes a support plate 511, a lifting cylinder 512, a lifting column 513, a lifting seat 514, an insert column 515, and a guide rod 516. The support plate 511 is horizontally positioned; the lifting cylinder 512 is located at the lower part of the support plate 511; the lifting column 513 is vertically connected to the output end of the lifting cylinder 512 and extends upward through the support plate 511; the lifting seat 514 is horizontally positioned at the top of the lifting column 513 and moves up and down by the lifting column 513; the insert column 515... The system includes at least two pins 515 vertically mounted on the lifting seat 514. When the lifting seat 514 lifts and supports the stator carrier 34, the at least two pins 515 are inserted into the stator carrier 34 to position the stator carrier 34. The system also includes at least two guide rods 516, the upper ends of which are fixedly connected to the bottom of the lifting seat 514, and the lower ends of which are slidably inserted into the support plate 511 in the vertical direction to guide and limit the lifting seat 514 during its lifting and lowering movements.

[0165] like Figure 20 As shown, the correction limiting assembly of the present invention includes a correction bracket 517, a correction cylinder 518, an arc-shaped correction block 519, and a correction connecting component. The correction bracket 517 is mounted on the side of the lifting and positioning assembly; the correction cylinder 518 is disposed on the top of the correction bracket 517, with its output end facing the lifting and positioning assembly; the correction connecting component is disposed at the outer end of the correction cylinder 518 and is used to connect and install the arc-shaped correction block 519.

[0166] The calibration connection components include a mounting plate 5110, a connecting seat 5111, a locking seat 5112, a locking rod 5113, a locking sleeve 5114, and a connecting post 5115. The mounting plate 5110 is vertically connected to the outer end of the output shaft of the calibration cylinder 518. The connecting seat 5111 is located on the outer side of the mounting plate 5110, and a through mounting groove E is formed in the middle of the connecting seat 5111. Two locking seats 5112 are included, with the upper and lower locking seats 5112 arranged parallel to each other on the upper and lower sides of the mounting groove E, extending horizontally outwards. The back side of the arc-shaped calibration block 519 has an outwardly protruding embedding part 5116, and a clearance groove G is formed below the embedding part 5116. The embedding part 5116 is embedded in the mounting groove E, and the clearance groove G engages with the lower locking seat 5112. Locking holes F are respectively provided on the embedded part 5116 and the upper locking seat 5112; the locking sleeve 5114 is inserted into the locking hole F of the upper locking seat 5112 and is threadedly connected to the locking hole F so as to fix it on the upper locking seat 5112; the locking rod 5113 passes through the locking sleeve 5114 into the locking hole F of the embedded part 5116 and is threadedly connected to the locking hole F and the locking sleeve 5114 so as to fix the arc-shaped correction block 519 on the upper locking seat 5112; the connecting post 5115 includes at least two posts, and at least two connecting posts 5115 pass horizontally through the arc-shaped correction block 519, the connecting seat 5111 and the mounting plate 5110 in sequence to connect and fix the three; the side walls of the connecting seat 5111 are respectively provided with outwardly protruding mounting guide blocks 5117 to guide and limit the arc-shaped correction block 519 during installation.

[0167] like Figure 21 As shown, the transfer assembly 52 of the present invention includes a transfer platform 521 and a pushing component 522. The transfer platform 521 includes a horizontally arranged turntable 5218 and a guide seat 5219 disposed on the outer side of the turntable 5218. The turntable 5218 rotates in the horizontal plane. At least two material grooves H are spaced apart along the circumferential direction on the turntable 5218. The outer side of the material grooves H is open to allow the screw and spring assembly to be inserted. The guide seat 5219 has a transfer groove J with an L-shaped cross-section inside. One side of the transfer groove J is connected to the discharge assembly 101, and the other side is connected to the material groove H. The pushing component 522 is disposed at the guide seat 5219. After the screw and spring assembly discharged by the discharge assembly 101 enters the transfer groove J, it is pushed into the material groove H by the pushing component 522.

[0168] like Figures 22 to 26As shown, the turntable 521 of the present invention further includes a turntable base 5211, a rotating component, and a limiting component. The turntable base 5211 is a U-shaped frame and is horizontally arranged. The rotating component is located at the lower part of the turntable base 5211, and its output end extends upward through the turntable base 5211, outputting rotational power in the horizontal plane. The turntable 5218 is located on the output end of the rotating component and rotates as driven by the rotating component. The limiting component is located on the turntable base 5211 and on the outer side of the turntable 5218, used to limit the screw and spring assembly within the material groove H.

[0169] The rotating component includes a rotary motor 5212, a rotating base 5213, and a rotating column 5215. The rotary motor 5212 is located at the lower part of the turntable base 5211, and its output end extends upward through the turntable base 5211. The rotating base 5213 is connected to the output end of the rotary motor 5212. The rotating column 5215 is connected to the rotating base 5213 and rotates in a horizontal plane driven by the rotary motor 5212. The turntable 5218 is horizontally located on top of the rotating column 5215 and rotates with the rotating column 5215.

[0170] The limiting component includes an outer support 5214, a support rod 5216, and a limiting ring 5217. The outer support 5214 is horizontally arranged above the rotating seat 5213, and the two sides of the outer support 5214 are connected and fixed to the outer pusher component 522. The rotating column 5215 extends upward through the outer support 5214. The support rod 5216 includes at least two rods, which are vertically arranged on the outer support 5214 and extend upward to the outer side of the turntable 5218.

[0171] The limiting ring 5217 includes two rings with an arc-shaped structure. The two limiting rings 5217 are symmetrically arranged on the outside of the turntable 5218, forming a ring-shaped structure with a circular slot in the middle. The turntable 5218 is located in the circular slot. The ring-shaped structure formed by the limiting rings 5217 covers the outer edge to block the screw and spring assembly in the material groove H. The two ends of the limiting rings 5217 are connected at the guide seat 5219. A gap is left at the connection so that the guide seat 5219 can guide the screw and spring assembly into the material groove H through the gap.

[0172] The guide seat 5219 is vertically mounted on the outer support 5214. The guide seat 5219 has a transfer groove J inside. The transfer groove J is a groove with an L-shaped cross-section. The top and two perpendicular sides of the transfer groove J are open structures. One side is the feed inlet I and the other side is the discharge outlet K. The feed inlet I and the discharge outlet K are connected to each other. The feed inlet I is connected to the discharge assembly 101, and the discharge outlet K is connected to the material trough H to allow the screw and spring assembly to be introduced and exported.

[0173] like Figures 22 to 26 As shown, the feeding component 522 of the present invention includes a feeding bracket 5221, a feeding cylinder 5222, a feeding rod 5223, and a feeding block 5224. The feeding bracket 5221 is vertically arranged on the outside of the turntable 521. The feeding cylinder 5222 is horizontally arranged on the horizontal support platform at the top of the feeding bracket 5221, and its output end faces the turntable 521. The feeding rod 5223 is connected to the output end of the feeding cylinder 5222 and extends above the turntable 5218. The feeding block 5224 is a U-shaped block. The feeding block 5224 is connected to the outer end of the feeding rod 5223, and its U-shaped opening faces downward. It is used to fit onto the screw and spring assembly in the turntable J from above and push the screw and spring assembly from the turntable J into the material groove H.

[0174] like Figures 29 to 32 As shown, the discharge assembly 101 of the present invention includes two sets, which are arranged in parallel and spaced apart. One end of the discharge assembly 101 is connected to the circulating material distribution assembly 104, and the other end is connected to the transfer groove J of the guide seat 5219. The direct push assembly 102 includes two sets, which are respectively arranged on the side of the discharge assembly 101 and are used to push the screw and spring assembly in the discharge assembly 101 toward the transfer groove J. The material blocking assembly 103 is arranged between the two sets of discharge assemblies 101 and is used to block the screw and spring assembly during the material receiving process.

[0175] The discharge assembly 101 of the present invention includes a discharge vibrating seat 1011 and a discharge guide rail 1012. The discharge vibrating seat 1011 is horizontally arranged, and the discharge guide rail 1012 is arranged on the top of the discharge vibrating seat 1011 along a straight direction. The discharge guide rail 1012 is provided with a discharge groove L extending along a straight direction. One end of the discharge groove L is connected to the circulating material distribution assembly 104, and the other end is connected to the transfer groove J of the guide seat 5219. The screw and spring feeding mechanism automatically and continuously discharges screw and spring assemblies arranged in a vertical direction. After the screw and spring assemblies are arranged in the discharge groove L, they are transmitted forward by the vibration force generated by the discharge vibrating seat 1011 below, while ensuring the consistency of the spacing of the screw and spring assemblies.

[0176] The direct-push assembly 102 of the present invention includes a direct-push bracket 1021, a direct-push cylinder 1022, a direct-push plate 1023, a direct-push seat 1024, and a direct-push block 1025. The direct-push bracket 1021 is mounted on the side of the discharge assembly 101. The direct-push cylinder 1022 is disposed on the top of the direct-push bracket 1021, and its output end extends in the same direction as the discharge trough L. The direct-push seat 1024 is disposed at the outer end of the output shaft of the direct-push cylinder 1022, and its side wall is provided with an inwardly recessed mounting groove N. To facilitate the sliding installation of the output shaft of the direct push cylinder 1022; the direct push plate 1023 is an L-shaped plate, with its horizontal side connected to the side wall of the direct push seat 1024, and its vertical side extending downward in the vertical direction; the direct push block 1025 is set on the vertical side wall of the direct push plate 1023; the direct push cylinder 1022 drives the direct push block 1025 to push the screw and spring assembly in the discharge groove L into the transfer groove J along the straight line of the discharge groove L.

[0177] like Figure 27 As shown, the material blocking assembly 103 of the present invention includes a material blocking support 1031 and a material blocking plate 1032. The material blocking support 1031 is disposed between two sets of discharge assemblies 101 and extends vertically upward. The material blocking plate 1032 is vertically disposed on the material blocking support 1031. The two sides of the material blocking plate 1032 are respectively provided with inwardly recessed grooves M. The grooves M are respectively nested and fitted with the outer side walls of the discharge guide rails 1012 of the two sets of discharge assemblies 101, so that the gap space between the two discharge guide rails 1012 is sealed. When the circulating material distribution assembly 104 moves back and forth between the two discharge assemblies 101 and docks with the discharge groove L of the discharge assembly 101 for material supply, the material blocking plate 1032 can block the screw and spring assembly in the circulating material distribution assembly 104 to prevent the screw and spring assembly from sliding out during the process of switching between the two sets of discharge assemblies 101 for material supply.

[0178] The assembly part of this invention includes an assembly platform and an assembly robot. The assembly platform includes an assembly support and a transfer component. The assembly support is located at the assembly station, and the transfer component is located between the discharge component and the assembly platform. The assembly support is used to block the stator carrier that is positioned and moved to the assembly station, and to lift the stator carrier upward so that it is separated from the transmission belt of the guide component. The stator is then aligned and positioned from both sides to ensure the accuracy of the stator's position during assembly. The transfer component is used to alternately receive and remove the screw and spring assembly from the discharge component, and then rotate the screw and spring assembly to a position below the assembly robot so that the assembly robot can remove it and insert the screw and spring assembly into the stator. Specifically, the assembly support includes a lifting and positioning component and a correction and limiting component. When the stator carrier moves the stator to the assembly station, the blocking component blocks and positions the stator carrier. The lifting and positioning component located below the stator carrier moves from bottom to top, driving the lifting seat upward through the lifting cylinder. While the lifting seat lifts the stator carrier from bottom to top, the insert pins on it are inserted into the positioning holes of the stator carrier from below to position the stator carrier. The lifting seat continues to move upward, lifting the stator carrier upward and separating it from the continuously moving transmission belt. The correction and limiting component includes two sets, which are symmetrically spaced on both sides of the stator carrier. The correction cylinder of the correction and limiting component drives the arc-shaped correction block to approach the stator from the outside. By having the arc surface close to the outer wall of the stator, the limit correction of the stator is achieved. The transfer assembly of this invention includes a transfer platform located in the center and pusher components located on both sides of the transfer platform. A rotary motor is mounted on the base of the transfer platform, outputting rotational power in a horizontal plane to drive a vertically mounted rotating column to rotate. The rotating column drives the turntable located on top of the turntable to rotate. The turntable is a circular platform with multiple material slots spaced along its circumference. The outer side and top of the material slots are open for inserting screw and spring assemblies, and the bottom of the material slots is open to facilitate the bottom of the screw passing through. A key feature is that guide seats are provided on both sides of the turntable, and each guide seat contains a transfer mechanism with an L-shaped cross-section. The discharge port of the transfer trough connects to the material trough, and the inlet connects to the outer discharge assembly. The screw and spring assembly pushed out by the discharge assembly enters the transfer trough. After the screw and spring assembly enters the transfer trough, it is inverted and wrapped by the U-shaped pusher block of the pusher component from above, and then it is transferred from the transfer trough into the material trough of the turntable, realizing the transfer and distribution of screw and spring assemblies. During the distribution process, the guide seats on both sides of the turntable synchronously guide the screw and spring assembly from both sides into the material trough of the turntable. After the introduction is completed, the turntable rotates one unit angle and switches to the next empty material trough to connect with the transfer trough of the guide seat. This cycle is repeated to realize the synchronous transfer and feeding of materials through dual channels.Furthermore, the rotary motor of the present invention is provided with an outer support horizontally above it. The rotating column passes through the outer support from bottom to top and rotates freely within the outer support to avoid motion interference. The outer support extends horizontally to both sides of the turntable to support the guide seats on both sides of the turntable. At the same time, multiple support rods are provided at intervals along the outer side of the turntable on the outer support. Two symmetrically arranged limiting rings are provided at the top of the support rods. The joint of the two limiting rings corresponds to the discharge port of the guide seat and leaves a gap so that the screw and spring assembly in the rotating groove of the guide seat can enter the material groove of the turntable. The limiting rings limit the turntable from the outside to prevent the screw and spring assembly from sliding out of the material groove during the rotation of the turntable.

[0179] like Figures 1 to 7 As shown, this invention discloses an automatic nail-threading process for an automatic nail-threading wire in a motor stator, comprising the following process steps:

[0180] S1. Stator feeding and transfer: After the stator to be assembled is placed in the stator carrier, it is fed along a straight line by the stator guide rail of the stator feeding mechanism of the stator feeding section, and then moved to the guide assembly by the carrier arm, and then transferred to the assembly station by the transmission belt of the guide assembly.

[0181] S2, Stator blocking positioning and correction: After the stator carrier in step S1 is blocked and positioned at the assembly station by the assembly support, it is lifted upward so that the stator carrier is separated from the transmission belt in the conveyor. Then, the stator inside the stator carrier is corrected and positioned from both sides.

[0182] S3. Spring feeding and turning transfer: The springs to be assembled are horizontally led out one by one by the spring feeding mechanism of the spring feeding section, and then the springs are horizontally transported to the spring receiving assembly by the spring arm. After the spring receiving assembly rotates the multiple springs on it to the vertical direction, the spring arm moves the vertical springs into the feeding assembly for vertical insertion.

[0183] S4. Screw feeding and distribution: After the screws to be assembled are led out by the screw feeding component of the screw feeding section, they are guided one by one into the screw distribution component in the vertical direction by the screw vibration component. The screw distribution component picks up the screws one by one while moving in a direction perpendicular to the screw leading out, thus realizing screw distribution. After the picking is completed, the screws are pushed out from below.

[0184] S5. Screw picking and assembly: After the screw is ejected in step S4, the screw arm of the screw feeding part takes the screw out from the screw dispensing part and inserts the screw into the spring in the feeding assembly in step S3 from above, forming a screw and spring assembly.

[0185] S6. Screw and spring assembly alignment, positioning and export: After the screw and spring assembly is assembled in step S5, the feeding assembly clamps and aligns multiple screw and spring assemblies from both sides, and the flat pushing assembly pushes out multiple screw and spring assemblies simultaneously.

[0186] S7. Circulating material receiving and distributing: When the screw and spring assembly is pushed out in step S6, it is received alternately by the two circulating material distributing grooves of the circulating material distributing component. While one circulating material distributing groove receives the screw and spring assembly, the other circulating material distributing groove alternately discharges the received screw and spring assembly into the discharge component at its rear.

[0187] S8. Dual-channel alternating transfer material handling: After the two sets of discharge components in step S7 receive the screw and spring assembly from the circulating material distribution component, they synchronously guide it into the guide seat of the transfer component. The screw and spring assembly flows along an L-shaped path in the guide seat and is pushed into the transfer groove of the turntable by the pushing component on the outside of the guide seat. The turntable rotates, so as to simultaneously receive two screw and spring assemblies and transfer the received screw and spring assembly to the bottom of the assembly robot for it to take out.

[0188] S9. Assembly of screw and spring assembly: After the assembly robot in step S8 takes the screw and spring assembly from the turntable, it assembles it onto the stator in step S2.

[0189] Furthermore, this invention designs an automatic stator threading line and its automatic threading process for motor stators, which realizes dual-channel feeding, sorting, and transfer of screws and springs to form assemblies. It also achieves cyclical, alternating, synchronous feeding, ensuring continuous and uninterrupted feeding of springs and screws, effectively improving the feeding efficiency of screws and springs. Moreover, it uses a rotary, alternating feeding and cutting method to achieve synchronous feeding and assembly of four assemblies, improving overall assembly efficiency. This invention belongs to the category of automated production lines for automated motor assembly. It aims to replace traditional manual assembly methods with automated processes, significantly increasing motor production capacity and yield. Specifically, this invention mainly focuses on the threading and assembly process of screws and springs in motor production, achieving continuous synchronous assembly of four screws and springs to maximize assembly efficiency while ensuring assembly quality. Specifically, the present invention comprises a stator feeding section, a screw feeding section, a spring feeding section, a material distribution assembly section, and an assembly section. The stator feeding section uses a stator carrier as a load-bearing structure to achieve automatic stator feeding, transfer and loading, blocking positioning and correction, and ensures the positional stability of the stator before assembly while achieving automatic stator feeding. The stator is positioned and corrected at the assembly station. The screw feeding section and the spring feeding section are spaced apart on both sides of the material distribution assembly section, and automatically feed screws and springs through a dual-channel feeding method. The material distribution section receives the exported springs and screws, and after the springs and screws are combined to form screw and spring assemblies, the screw and spring assemblies are clamped and corrected, and then continuously exported in a cyclical material receiving and discharging manner. The assembly section is located at the discharge end of the material distribution section and the assembly station of the stator feeding section. The assembly section realizes the material receiving, transfer and feeding of screw and spring assemblies through a rotating and alternating material receiving and feeding method, and realizes the synchronous material picking and assembly of four sets of screw and spring assemblies, effectively improving the assembly efficiency.

[0190] The embodiments of this invention are merely illustrative of specific implementation methods and are not intended to limit the scope of protection. Those skilled in the art can make modifications based on these embodiments; therefore, all equivalent changes or modifications made in accordance with the scope of this invention's patent claims fall within the scope of this invention's patent claims.

Claims

1. An automatic screw threading body for motor stators, used for automatically assembling screw and spring assemblies on motor stators, characterized in that: It includes a stator feeding section, a screw feeding section, a spring feeding section, a material distribution and assembly section, among which, The stator feeding section is arranged along the L-shaped line direction, and an assembly station is provided on one side; the assembly section is located at the assembly station; the material distribution and assembly section is located on the side of the assembly section; the screw feeding section and the spring feeding section are respectively located on both sides of the material distribution and assembly section; after the screw feeding section and the spring feeding section respectively deliver the screw (03) and the spring (02), they are assembled into a screw and spring assembly at the material distribution and assembly section, and then the material distribution and assembly section delivers the screw and spring assembly to the assembly section, where the screw and spring assembly is assembled into the stator (01) to form a stator assembly (0). The material distribution assembly includes a spring receiving assembly (106), a flat pushing assembly (107), a feeding assembly (108), a circulating material distribution assembly (104), a blocking assembly (103), a discharging assembly (101), and a direct pushing assembly (102). The spring receiving assembly (106) and the feeding assembly (108) are spaced apart along the same direction. The spring receiving assembly (106) receives the spring (02) from the spring feeding section and transfers it into the feeding assembly (108). The screw (03) from the screw feeding section is inserted from above into the spring (02) on the feeding assembly (108), forming a screw and spring assembly. The feeding assembly (108) simultaneously clamps and fixes at least two screw and spring assemblies. The flat pushing assembly (107) is located at one end of the feeding assembly (108) and extends along the assembly section. The linear power output pushes at least two screw and spring assemblies on the feeding assembly (108) synchronously toward the assembly part; the circulating distribution assembly (104) is located at the other end of the feeding assembly (108), and the circulating distribution assembly (104) includes two parallel and spaced circulating distribution grooves (1044), which move back and forth in a linear motion perpendicular to the feeding assembly (108) to take screw and spring assemblies from the feeding assembly (108) in turn; the discharge assembly (101) is located between the circulating distribution assembly (104) and the assembly part, and after the circulating distribution assembly (104) takes the screw and spring assembly, it guides it into the discharge assembly (101); the direct push assembly (102) is located on the side of the discharge assembly (101) and is used to push the screw and spring assembly into the assembly part; The assembly section includes an assembly platform (5) and an assembly robot (4). The assembly platform (5) includes an assembly support (51) and a transfer component (52). The assembly support (51) is set at the assembly station and is used to correct and position the stator (01) to be assembled. The transfer component (52) is spaced between the assembly support (51) and the discharge component (101) and is used to pick up the screw and spring assembly and then rotate and cut the material. The assembly robot (4) is mounted above the assembly support (51) and the transfer component (52). The assembly robot (4) simultaneously picks up at least two screw and spring assemblies from the transfer component (52) and then assembles them onto the stator (01).

2. The automatic stator threading line for a motor according to claim 1, characterized in that: The stator (01) has four screw holes (04) on its outer edge; the screw and spring assembly includes a spring (02) and a screw (03), wherein the screw (03) is inserted into the spring (02) from above, and the lower end of the screw (03) extends downward to the outside of the spring (02) so as to be inserted into the screw hole (04).

3. The automatic stator threading line for a motor according to claim 1, characterized in that: The stator feeding section includes a stator loading assembly (2) and a guide assembly (3). The stator loading assembly (2) includes a stator guide rail (21) and a carrier arm (22). The stator guide rail (21) is arranged in a straight line, and one end of it is connected to an external feeding mechanism for guiding the stator carrier (34). The guide assembly (3) includes a loading bracket (31), a transmission belt (32), and a blocking assembly (35). The loading bracket (31) is vertically arranged at the other end of the stator guide rail (21). The carrier arm (22) is located at the connection between the loading bracket (31) and the stator guide rail (21) for transporting the stator carrier (34) at the stator guide rail (21) to the loading bracket (31). Inside; the middle of the feeding bracket (31) is provided with a straight-extending material channel, and the two inner sides of the material channel are driven by a motor to move in a straight line along the material channel direction. The stator carrier (34) is placed on the transmission belt (32) and is driven by the transmission belt (32) to move in a straight line in the material channel. The blocking component (35) is set at the assembly station of the feeding bracket (31) to block the stator carrier (34) in the limiting movement. At least two carrier sensors (33) are spaced apart on the side of the assembly station to sense and detect the stator carrier (34) that has been transmitted, so that the blocking component (35) can start the blocking action. The outer cover of the carrier arm (22) is provided with a machine cover (1) for protection.

4. The automatic stator threading line for a motor according to claim 1, characterized in that: The spring feeding section includes a spring feeding assembly (8), a spring blocking assembly (105), and a spring lifting arm (9). The spring feeding assembly (8) includes a spring feeding bracket (81), a spring vibrating plate (82), and a spring vibration component (83). The spring feeding bracket (81) is located on the side of the material distribution assembly section. Two spring vibrating plates (82) are spaced apart inside the spring feeding bracket (81). The spring vibrating plates (82) contain springs (02) to be assembled and are ejected by vibration. The spring vibration component (83) includes two sets, which are respectively connected to two springs. The discharge port of the spring vibrating plate (82) is used to receive the spring (02) that is being discharged; the spring blocking assembly (105) is located outside the discharge port of the spring vibrating component (83) and is used to block and support the spring (02) that is being discharged horizontally by the spring vibrating component (83); the spring arm (9) is mounted outside the spring blocking assembly (105) and is used to take out the horizontal spring (02) from the spring blocking assembly (105) and transport it to the spring receiving assembly (106). After the spring receiving assembly (106) is rotated to the vertical direction, the spring arm (9) transports the vertical spring (02) to the feeding assembly (108).

5. The automatic stator threading line for a motor according to claim 4, characterized in that: The spring vibration component (83) includes a spring vibration seat, a spring guide seat (831), a spring positioning cylinder (832), and a spring positioning column (833). The spring vibration seat is located outside the outlet of the spring vibration disk (82) and is used to provide vibration force. The spring guide seat (831) is located on the spring vibration seat and is a strip-shaped seat with a horizontally extending spring guide groove (S) inside. One end of the spring guide groove (S) is connected to the outlet of the spring vibration disk (82), and the other end is connected to the spring blocking assembly (1). 05) Connection, the spring (02) led out by the spring vibrating plate (82) enters the spring guide groove (S) and is horizontally and linearly transmitted in the spring guide groove (S); the spring positioning cylinder (832) includes at least two, and at least two spring positioning cylinders (832) are horizontally arranged on the side wall of the spring guide seat (831); the spring positioning column (833) is connected to the output end of the spring positioning cylinder (832) and extends horizontally through the spring guide seat (831) into the spring guide groove (S) to control and block the spring (02) from entering the guide groove (S).

6. The automatic stator threading line for a motor according to claim 1, characterized in that: The screw feeding section includes a screw feeding assembly (6) and a screw lifting arm (7). The screw feeding assembly (6) includes a screw feeding component (61), a screw vibration component (62), and a screw dispensing component (63). The screw feeding component (61) includes two sets, which are spaced apart and used to automatically supply and discharge the screws (03) to be assembled. The screw vibration component (62) is located at the discharge end of the screw feeding component (61) and is used to pick up the screws (03) and dispensing the screws (03). 3) Screws are discharged one by one along a straight line; the screw distribution component (63) is set at the discharge end of the screw vibration component (62) in a direction perpendicular to the screw vibration component (62), and the screws (03) are picked up one by one while moving in a direction perpendicular to the screw vibration component (62); the screw arm (7) is set between the screw distribution component (63) and the feeding assembly (108), and is used to take the screws (03) out of the screw distribution component (63) and insert them into the vertically set spring (02) in the feeding assembly (108).

7. The automatic stator threading line for a motor according to claim 6, characterized in that: The screw distribution component (63) includes a distribution bracket (631), a distribution motor (632), a distribution belt (633), a distribution connecting seat (634), a distribution block (635), an ejection cylinder (636), and an ejection block (637). The distribution bracket (631) is located at the discharge end of the screw vibration component (62). A mating groove (P) is formed on one side wall of the distribution bracket (631) near the screw vibration component (62), and a screw guide rail (624) passes horizontally through the mating groove (P). The distribution motor (632) is located at the discharge end of the screw vibration component (62). The material support (631) is positioned with its output end facing upwards; the material distribution belt (633) is horizontally positioned on the material distribution support (631) in a direction perpendicular to the screw vibration component (62), with one end of the material distribution belt (633) sleeved on the output shaft of the material distribution motor (632) and the other end sleeved on the rotating wheel on the material distribution support (631), and driven by the material distribution motor (632) to move in a direction perpendicular to the screw vibration component (62); the material distribution connecting seat (634) is slidably positioned on the material distribution support (631) in a direction perpendicular to the screw vibration component (62). 1) It is connected to the material distribution belt (633) and moves linearly with the material distribution belt (633); the material distribution block (635) is set on the side of the material distribution connecting seat (634), and at least two receiving grooves (R) are opened on the side of the material distribution block (635) near the screw vibration component (62). The side and the upper and lower ends of the receiving groove (R) are open surfaces. When the material distribution block (635) moves with the material distribution connecting seat (634), the receiving groove (R) is connected with the docking groove (P), so that the screw (03) enters the receiving groove (R); the ejection cylinder (636) is set on The side of the docking groove (P) is set with the output end facing upward; the ejector block (637) is horizontally set on the output end of the ejector cylinder (636). The ejector block (637) has at least two inwardly recessed grooves corresponding to the receiving groove (R). After the receiving groove (R) of the material distribution block (635) receives the screw (03), it drives the screw (03) to move above the ejector block (637) and makes the lower end of the screw (03) slide into the groove of the ejector block (637). The ejector block (637) moves upward and pushes the screw (03) upward from the receiving groove (R).

8. The automatic stator threading line for a motor according to claim 1, characterized in that: The spring receiving assembly (106) includes a receiving linear module (1061), a receiving slide (1062), a receiving support plate (1063), a receiving rotary motor (1064), a receiving rotary seat (1065), and a spring cylinder (1066). The receiving linear module (1061) is horizontally positioned; the receiving slide (1062) is positioned at the output end of the receiving linear module (1061); and the receiving support plate (1063) is positioned at the output end of the receiving linear module (1064). 3) It includes two receiving support plates (1063) arranged parallel to each other on the receiving slide (1062); the receiving rotary seat (1065) is horizontally arranged between the two receiving support plates (1063), and the two ends of the receiving rotary seat (1065) are rotatably connected to the two receiving support plates (1063); the receiving rotary motor (1064) is arranged on the outer wall of the receiving support plate (1063), and the output end passes through the receiving support plate. (1063) is connected to the receiving rotary seat (1065); the receiving rotary seat (1065) has at least two spring material holes (U), one end of the spring material hole (U) is open for receiving the spring (02), the side of the spring material hole (U) is provided with a first mounting hole (V), and the bottom of the spring material hole (U) is provided with a second mounting hole (W) and a third mounting hole (X); the spring cylinder (1066) includes at least two, and the at least two spring cylinders (1066) are respectively embedded in the first mounting hole (V) and the second mounting hole (W), and the output end is set towards the spring material hole (U). The spring cylinder (1066) in the first mounting hole (V) is used to clamp and limit the spring (02) in the spring material hole (U) from the side, and the spring cylinder (1066) in the second mounting hole (W) is used to push the spring (02) outward for removal; the third mounting hole (X) is used for installation connection.

9. The automatic stator threading line for a motor according to claim 1, characterized in that: The feeding assembly (108) includes a feeding bracket (1081), a feeding slide (1084), a feeding positioning cylinder (1085), a feeding positioning seat (1086), and a feeding positioning block (1087). The feeding bracket (1081) is vertically oriented, and a through feeding slide cavity (1082) is formed on its side wall. The lower part of the feeding slide cavity (1082) has a recessed feeding groove (1083) for feeding. The top of the sliding cavity (1082) is provided with a vertically penetrating feeding groove (1088), and the bottom of the feeding groove (1088) is provided with a strip-shaped through groove with a width smaller than the width of the feeding groove (1088) so as to communicate with the feeding sliding cavity (1082) below. After placing the spring (02) in the feeding groove (1088), the screw (03) is inserted into the spring (02) from above to form a screw and spring assembly; the feeding slide (1084) is horizontally set in the feeding sliding cavity ( The feeding positioning cylinder (1085) is horizontally arranged on the feeding slide (1084) in a direction perpendicular to the feeding groove (1088), and both ends are output ends; the feeding positioning seat (1086) includes two, and the two feeding positioning seats (1086) are vertically connected to the output ends of the feeding positioning cylinder (1085) respectively, and are driven by the feeding positioning cylinder (1085) to... The feeding positioning block (1087) is horizontally positioned on top of the feeding positioning seat (1086) and extends freely through the side wall of the feeding bracket (1081) into the feeding groove (1088). The feeding positioning block (1087) is provided with at least two V-shaped feeding slots (1089) on the side near the feeding groove (1088) for clamping the screw and spring assembly in the feeding groove (1088) from the side.

10. The automatic stator threading line for a motor according to claim 1, characterized in that: The push assembly (107) includes a push bracket (1071), a push cylinder (1072), a push rod (1073), and a push block (1074). The push bracket (1071) is located on the outside of the feeding assembly (108). The push cylinder (1072) is horizontally mounted on the push bracket (1071) with its output end facing the feeding assembly (108). The push rod (1073) is connected to the output end of the push cylinder (1072) and extends horizontally outward. The outer end of the push rod (1073) extends horizontally and vertically downward in sequence along a direction perpendicular to the push rod (1073). The push block (1074) is located at the outer end of the push rod (1073) and is used to push the screw and spring assembly inside the feeding assembly (108) to move linearly.

11. The automatic stator threading line for a motor according to claim 9, characterized in that: The circulating material distribution assembly (104) includes a circulating material distribution bracket (1041), a circulating material distribution cylinder (1042), and a circulating material distribution seat (1043). The circulating material distribution bracket (1041) is located at the discharge end of the feeding assembly (108). The circulating material distribution cylinder (1042) is located on the circulating material distribution bracket (1041) and outputs linear power in a direction perpendicular to the feeding groove (1088). The circulating material distribution seat (1043) includes two seats, which are spaced apart on the circulating material distribution cylinder (1042) and driven by the circulating material distribution cylinder (1042) to move back and forth in a straight line in a direction perpendicular to the feeding groove (1088) so as to alternately dock with the feeding groove (1088) and guide the screw and spring assembly in the feeding groove (1088) into the circulating material distribution groove (1044) opened on the circulating material distribution seat (1043).

12. The automatic stator threading line for a motor according to claim 1, characterized in that: The assembly support (51) is set on the material guide assembly (3) of the stator feeding section. The assembly support (51) includes a lifting and positioning assembly and a correction and limiting assembly. The lifting and positioning assembly is set at the assembly station. The lifting and positioning assembly moves upward to lift the stator carrier (34) upward so that it is separated from the moving transmission belt and to position and fix the stator carrier (34). The correction and limiting assembly includes two sets. The two sets of correction and limiting assemblies are correspondingly set on both sides of the lifting and positioning assembly and are used to clamp and correct the stator (01) in the stator carrier (34) after lifting and positioning. The lifting and positioning assembly includes a support plate (511), a lifting cylinder (512), a lifting column (513), a lifting seat (514), a plug (515), and a guide rod (516). The support plate (511) is horizontally positioned; the lifting cylinder (512) is located at the lower part of the support plate (511); the lifting column (513) is vertically connected to the output end of the lifting cylinder (512) and extends upward through the support plate (511); the lifting seat (514) is horizontally positioned at the top of the lifting column (513) and moves up and down by the lifting column (513); the plug (515)... 515) includes at least two, at least two inserts (515) are vertically set on the lifting seat (514). When the lifting seat (514) lifts and supports the stator carrier (34) upward, at least two inserts (515) are inserted upward into the stator carrier (34) for positioning the stator carrier (34); the guide rod (516) includes at least two, the upper ends of the at least two guide rods (516) are fixedly connected to the bottom of the lifting seat (514), and the lower ends of the guide rods (516) are slidably inserted into the support plate (511) in the vertical direction for guiding and limiting the lifting seat (514) during its lifting and lowering movement; The correction limiting assembly includes a correction bracket (517), a correction cylinder (518), an arc-shaped correction block (519), and a correction connecting component. The correction bracket (517) is mounted on the side of the lifting and positioning assembly. The correction cylinder (518) is located on the top of the correction bracket (517), with its output end facing the lifting and positioning assembly. The correction connecting component is located at the outer end of the correction cylinder (518) and is used to connect and install the arc-shaped correction block (519). The calibration connection component includes a mounting plate (5110), a connecting seat (5111), a locking seat (5112), a locking rod (5113), a locking sleeve (5114), and a connecting post (5115). The mounting plate (5110) is vertically connected to the outer end of the output shaft of the calibration cylinder (518). The connecting seat (5111) is located on the outer side of the mounting plate (5110), and a through mounting groove (E) is formed in the middle of the connecting seat (5111). The locking seat (5112)... 5112) includes two locking seats, an upper locking seat (5112) and a lower locking seat (5112), which are respectively arranged parallel to each other on the upper and lower sides of the mounting groove (E) and extend horizontally outward; the back side of the arc-shaped correction block (519) is provided with an outwardly protruding embedding part (5116), and a clearance groove (G) is opened below the embedding part (5116); the embedding part (5116) is embedded in the mounting groove (E), and the clearance groove (G) is engaged with the lower locking seat (5112); The insert (5116) and the upper locking seat (5112) are respectively provided with locking holes (F); the locking sleeve (5114) is inserted into the locking hole (F) of the upper locking seat (5112) and is threadedly connected to the locking hole (F) to be fixed on the upper locking seat (5112); the locking rod (5113) passes through the locking sleeve (5114) into the locking hole (F) of the insert (5116) and is threadedly connected to the locking hole (F) and the locking sleeve (5114) to be fixed on the upper locking seat (5112); The arc-shaped correction block (519) is fixed on the upper locking seat (5112); the connecting column (5115) includes at least two columns, and the at least two connecting columns (5115) pass horizontally through the arc-shaped correction block (519), the connecting seat (5111) and the mounting plate (5110) in sequence to connect and fix the three; the side wall of the connecting seat (5111) is provided with outwardly protruding mounting guide blocks (5117) on both sides to guide and limit the arc-shaped correction block (519) during the installation process.

13. The automatic stator threading line for a motor according to claim 1, characterized in that: The transfer assembly (52) includes a transfer platform (521) and a pushing component (522). The transfer platform (521) includes a horizontally arranged turntable (5218) and a guide seat (5219) arranged on the outside of the turntable (5218). The turntable (5218) rotates in the horizontal plane. At least two material grooves (H) are spaced apart along the circumferential direction on the turntable (5218). The outer side of the material grooves (H) is open to allow the screw and spring assembly to be inserted. The guide seat (5219) has a transfer groove (J) with an L-shaped cross-section inside. One side of the transfer groove (J) is connected to the discharge assembly (101), and the other side is connected to the material groove (H). The pushing component (522) is located at the guide seat (5219). After the screw and spring assembly discharged by the discharge assembly (101) enters the transfer groove (J), it is pushed into the material groove (H) by the pushing component (522). The transfer station (521) also includes a turntable base (5211), a rotating component, and a limiting component. The turntable base (5211) is a U-shaped frame and is horizontally arranged. The rotating component is located at the lower part of the turntable base (5211), and its output end extends upward through the turntable base (5211) and outputs rotational power in the horizontal plane. The turntable (5218) is located on the output end of the rotating component and rotates under the drive of the rotating component. The limiting component is located on the turntable base (5211) and on the outside of the turntable (5218) to limit the screw and spring assembly in the material groove (H). The guide seat (5219) is vertically mounted on the outer support (5214). The guide seat (5219) has a transfer groove (J) inside. The transfer groove (J) is a groove with an L-shaped cross-section. The top and two perpendicular sides of the transfer groove (J) are open structures. One side is a feed inlet (I) and the other side is a discharge outlet (K). The feed inlet (I) and the discharge outlet (K) are connected to each other. The feed inlet (I) is connected to the discharge assembly (101), and the discharge outlet (K) is connected to the material trough (H) so as to introduce and export the screw and spring assembly. The pushing component (522) includes a pushing bracket (5221), a pushing cylinder (5222), a pushing rod (5223), and a pushing block (5224). The pushing bracket (5221) is vertically arranged on the outside of the turntable (521). The pushing cylinder (5222) is horizontally arranged on the horizontal support at the top of the pushing bracket (5221), and its output end faces the turntable (521). The pushing rod (5223) is connected to the output end of the pushing cylinder (5222) and extends to the top of the turntable (5218). The pushing block (5224) is a U-shaped block. The pushing block (5224) is connected to the outer end of the pushing rod (5223), and its U-shaped opening faces downward. It is used to fit the screw and spring assembly in the turntable groove (J) from above and push the screw and spring assembly from the turntable groove (J) into the material groove (H).

14. An automatic nail-threading process for an automatic nail-threading wire body of a motor stator as described in claim 1, characterized in that, The process includes the following steps: S1. Stator feeding and transfer: After the stator to be assembled is placed in the stator carrier, it is fed along a straight line by the stator guide rail of the stator feeding mechanism of the stator feeding section, and then moved to the guide assembly by the carrier arm, and then transferred to the assembly station by the transmission belt of the guide assembly. S2, Stator blocking positioning and correction: After the stator carrier in step S1 is blocked and positioned at the assembly station by the assembly support, it is lifted upward so that the stator carrier is separated from the transmission belt in the conveyor. Then, the stator inside the stator carrier is corrected and positioned from both sides. S3. Spring feeding and turning transfer: The springs to be assembled are horizontally led out one by one by the spring feeding mechanism of the spring feeding section, and then the springs are horizontally transported to the spring receiving assembly by the spring arm. After the spring receiving assembly rotates the multiple springs on it to the vertical direction, the spring arm moves the vertical springs into the feeding assembly for vertical insertion. S4. Screw feeding and distribution: After the screws to be assembled are led out by the screw feeding component of the screw feeding section, they are guided one by one into the screw distribution component in the vertical direction by the screw vibration component. The screw distribution component picks up the screws one by one while moving in a direction perpendicular to the screw leading out, thus realizing screw distribution. After the picking is completed, the screws are pushed out from below. S5. Screw picking and assembly: After the screw is ejected in step S4, the screw arm of the screw feeding part takes the screw out from the screw dispensing part and inserts the screw into the spring in the feeding assembly in step S3 from above, forming a screw and spring assembly. S6. Screw and spring assembly alignment, positioning and export: After the screw and spring assembly is assembled in step S5, the feeding assembly clamps and aligns multiple screw and spring assemblies from both sides, and the flat pushing assembly pushes out multiple screw and spring assemblies simultaneously. S7. Circulating material receiving and distributing: When the screw and spring assembly is pushed out in step S6, it is received alternately by the two circulating material distributing grooves of the circulating material distributing component. While one circulating material distributing groove receives the screw and spring assembly, the other circulating material distributing groove alternately discharges the received screw and spring assembly into the discharge component at its rear. S8. Dual-channel alternating transfer and material handling: After the two sets of discharge components in step S7 receive the screw and spring assembly from the circulating material distribution component, they synchronously guide it into the guide seat of the transfer component. The screw and spring assembly flows along an L-shaped path in the guide seat and is pushed into the transfer slot of the transfer table by the pushing component on the outside of the guide seat. The transfer table rotates to simultaneously receive two screw and spring assemblies and transfer the received screw and spring assembly to the bottom of the assembly robot for it to take out. S9. Assembly of screw and spring assembly: After the assembly robot in step S8 takes the screw and spring assembly from the transfer table, it assembles it onto the stator in step S2.

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