A fully automatic assembling machine for rotary encoders

Abstract

A kind of full-automatic assembly machine of rotary encoder belongs to encoder assembly equipment field.For the problems of traditional encoder assembly process dispersion,transportation is complicated,assembly precision is insufficient and finished product qualification rate is low.The assembly machine includes full-automatic assembly machine body,degree disc I and degree disc II are sequentially connected on the top of body frame,rotor feed,selecting direction,brush feed,detection, riveting and transfer assembly are arranged circumferentially on degree disc I,for rotor and brush pre-assembly;Support feed,elastic sheet feed,rotor detection,body feed,body detection and finished product discharge assembly are arranged circumferentially on degree disc II,for encoder overall assembly.Two degree discs are DD direct drive motor type,rotor detection mechanism is photoelectric sensor, body detection mechanism is pressure sensor,both are synchronous trigger detection,finished product discharge is realized by mechanical hand grabbing.The equipment realizes encoder full-process automatic assembly,improves assembly precision and production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of encoder assembly equipment, and in particular to a fully automatic assembly machine for rotary encoders. Background Technology

[0002] The assembly of a rotary encoder requires the precise coordination of multiple components, including the rotor, brush, bracket, spring, and body.

[0003] In actual production, the assembly processes of rotary encoders are mostly completed using independent equipment. This dispersed equipment layout results in a large footprint, and the transfer of parts between different machines requires manual intervention. This not only increases labor but also increases the risk of damage to parts during transport, affecting subsequent assembly accuracy. Furthermore, coordinating the operating cycles of different equipment is difficult, leading to disjointed processes and overall low production efficiency.

[0004] To address the aforementioned problems, this utility model document proposes a fully automatic assembly machine for rotary encoders. Utility Model Content

[0005] This invention provides a fully automatic assembly machine for rotary encoders, which solves the shortcomings of existing technologies such as scattered assembly processes, cumbersome transportation, insufficient assembly accuracy, and low finished product qualification rate.

[0006] This utility model provides the following technical solution: A fully automatic assembly machine for rotary encoders, comprising: The fully automatic assembly machine body has indexing plates I and II connected in sequence on the top of the frame. Indexing plate I is used for the pre-assembly of the rotor and brush, and indexing plate II is used to complete the overall assembly of the encoder. The indexing plate I is equipped with a rotor feeding assembly for conveying the rotor to the corresponding workstation of the indexing plate I, a rotor orientation assembly for determining the rotor installation direction and adjusting it to a preset posture through an orientation selection mechanism, a brush feeding assembly for conveying the brush to the rotor assembly workstation of the indexing plate I and cooperating with the rotor positioning, a brush detection assembly for detecting whether the brush is installed in place, a brush riveting assembly for fixing the brush to the rotor, and a rotor transfer assembly for transferring the pre-assembled rotor from the indexing plate I to the corresponding workstation of the indexing plate II. The indexing plate I achieves the sequential switching of the workstation components through intermittent rotation. The indexing plate II is equipped with a bracket feeding mechanism for transporting the bracket to the indexing plate II assembly station, a spring feeding mechanism for transporting the spring sheet to the bracket assembly station of the indexing plate II and positioning it with the bracket, a rotor detection mechanism for detecting whether the pre-assembled rotor has been transferred to the correct position, an encoder body feeding mechanism for transporting the encoder body to the final assembly station of the indexing plate II and forming an integral assembly with the bracket, spring sheet and pre-assembled rotor, an encoder body detection mechanism for detecting whether the encoder body is installed in place, and a finished product discharge mechanism for outputting the finished encoder that has been assembled and passed the inspection.

[0007] In one possible design, the brush detection component is a fiber optic sensor. The detection end of the fiber optic sensor is aligned with the brush detection station on the indexing plate I to identify the installation status of the brush and feed back a signal to the control system.

[0008] In one possible design, the support feeding mechanism and the spring feeding mechanism are arranged adjacent to each other, and the rotation direction of the indexing plate II is the same as that of the indexing plate I.

[0009] In one possible design, the rotor detection mechanism and the encoder body detection mechanism trigger detection actions synchronously. The rotor detection mechanism is a photoelectric sensor that determines the rotor installation status by position identification, and the encoder body detection mechanism is a pressure sensor that determines the encoder body installation status by pressure feedback.

[0010] In one possible design, the finished product discharging mechanism is implemented by a robotic gripper structure, used to transfer qualified finished products to a storage container.

[0011] In one possible design, both indexing plates I and II are DD direct drive motor indexing plates, and the bases of both indexing plates I and II are fastened to the mounting platform with high-strength bolts, with anti-slip rubber pads installed between the bases and the platform.

[0012] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0013] The working principle and usage process of this technical solution are as follows: This fully automatic assembly machine is based on a core structure of dual indexing plates working together. Through the PLC control system, it links various functional components and realizes the fully automated assembly of encoders according to the logic of pre-assembly, overall assembly, riveting and reinforcement, and finished product output. After the main body of the fully automatic assembly machine for a rotary encoder is started, the PLC control system completes self-test, the two indexing plates calibrate the speed and rotation direction according to preset parameters (to keep them consistent), and each feeding mechanism, detection mechanism, riveting mechanism, and transfer mechanism enters standby mode. The touch screen displays the equipment status in real time. During the pre-assembly stage of indexing plate I, the corresponding vibratory feeder is activated, orderly conveying the rotor to the rotor feeding station of indexing plate I. The three-jaw tensioning clamp at the station immediately centers and fixes the rotor, ensuring stable rotor posture. Indexing plate I rotates intermittently, transferring the rotor to the orientation selection station. The photoelectric detection component of the rotor orientation selection assembly identifies the laser markings on the rotor surface to determine the installation direction. If a directional deviation is detected, a miniature rotary cylinder drives the rotor to rotate rapidly 180° to adjust, ensuring the rotor's posture is consistent with the subsequent brush assembly. Another set of vibratory feeders conveys the brushes to the brush feeding station of indexing plate I, where nylon guide sleeves facilitate the brush feeding process. Precise alignment with the rotor assembly surface, and secondary clamping of the rotor by the positioning fixture to prevent displacement during assembly. Then, the indexing plate I rotates to the inspection station, and the fiber optic sensor detection end of the brush detection component is aligned with the assembly surface to emit a detection signal. If the brush is detected and the position is off, a qualified signal is fed back to the control system and the process continues. If the brush is not detected or the position is out of tolerance, the system immediately triggers a buzzer alarm, and subsequent processes are suspended, awaiting manual handling. The qualified rotor is transferred to the riveting station, and the pneumatic pressure head of the brush riveting component moves according to the preset stroke to rivet and fix the brush to the rotor. The polyurethane buffer layer covering the surface of the pressure head avoids damage to the parts. After pre-assembly, indexing plate I rotates to the transfer station. The robotic arm of the rotor transfer component starts gripping, and the rotor is smoothly transferred from indexing plate I to the corresponding station of indexing plate II through the guide positioning structure, achieving a seamless connection between the two indexing plates. The belt conveyor transports the bracket to the bracket feeding station of indexing plate II. The two-jaw centering clamp at the station fixes the bracket through the tensioning structure. This station is adjacent to the spring feeding station, shortening the process connection time. Indexing plate II rotates in the same direction as indexing plate I to the spring assembly station. The vacuum adsorption device of the spring feeding mechanism adsorbs the spring. The silicone adsorption head prevents the spring from deforming and accurately places it in the bracket assembly slot. The positioning boss in the assembly slot ensures that the spring is not loose after installation. Then, indexing plate II rotates... The rotor is moved to the rotor docking station. The photoelectric sensor of the rotor detection mechanism detects whether the pre-assembled rotor is in place through position recognition. If the rotor is not detected, the system alarms and suspends the process to prevent empty assembly defects. After the rotor is qualified, the indexing plate II is transferred to the body assembly station. The robot of the encoder body feeding mechanism transports the encoder body to the final assembly station, where it is precisely fitted with the bracket, spring and pre-assembled rotor. The elastic clamping fixture simultaneously fixes each component. Then the rotor detection mechanism and the encoder body detection mechanism trigger the detection action simultaneously. The pressure sensor of the body detection mechanism detects the fitting pressure between the body and the assembly. When the pressure value is within the qualified range, it is determined that the body is installed in place. If it exceeds the threshold, an alarm is triggered to prevent unqualified assemblies from flowing into the next process. After the main body assembly passes inspection, the indexing plate II rotates intermittently to the product riveting station. The positioning fixture of the product riveting mechanism immediately centers and limits the encoder after assembly to prevent displacement during riveting. The PLC control system sends a riveting command, and the servo pressure head moves downward according to the preset stroke and pressure parameters to reinforce the key assembly parts of the encoder. During the riveting process, the pressure monitoring module collects pressure data in real time and transmits it to the PLC. If the pressure value is within the preset qualified range, the servo pressure head resets after riveting, the positioning fixture is released, and the process continues. If the pressure value exceeds the threshold (too high a pressure value can easily cause deformation of parts, while too low a pressure value cannot guarantee the reinforcement effect), the system immediately triggers an alarm, suspends subsequent processes, and records the station number for easy manual troubleshooting. The finished encoder, which has passed overall assembly, inspection, and riveting reinforcement, is picked up by the robotic arm of the finished product unloading mechanism and transferred to the storage container. A buffer layer is laid inside the storage container to avoid collision damage to the finished product, thus completing the entire assembly process.

[0014] This utility model has the following beneficial effects: In this utility model, indexing plates I and II adopt DD direct drive motors, which have high indexing accuracy. Combined with the anti-slip rubber pads on the base and the precision positioning fixtures, the positioning accuracy throughout the process is high, which helps to reduce equipment positioning errors. The two indexing plates rotate in the same direction and are linked synchronously, which helps to ensure assembly consistency.

[0015] This utility model integrates multiple processes such as rotor pre-assembly, overall assembly, testing, riveting reinforcement, and material discharge, eliminating the need for manual transfer and intervention. Compared with traditional decentralized equipment, it significantly improves efficiency. The bracket and spring feeding mechanism are arranged adjacent to each other, shortening the station switching time and further optimizing the production cycle.

[0016] In this invention, brush detection (fiber optic sensor), rotor detection (photoelectric sensor), body detection (pressure sensor), and riveting pressure monitoring form a complete detection network. The rotor and body detection are triggered synchronously, and the riveting pressure is fed back in real time. With a short response time, it can identify assembly defects such as missing parts, misalignment, and unqualified riveting in real time, which is conducive to improving the finished product qualification rate.

[0017] In this invention, the brush riveting uses a polyurethane buffer pressure head, the spring feeding uses a silicone adsorption head, the product riveting uses servo control and a buffer pressure head, and the finished product is equipped with a buffer storage container. The entire process avoids scratches and deformation of parts. At the same time, the product riveting reinforcement process significantly improves the assembly stability and reliability of the finished product, which helps to ensure the quality of the finished product. Attached Figure Description

[0018] Figure 1 A three-dimensional structural schematic diagram of a fully automatic assembly machine for a rotary encoder provided in an embodiment of this utility model; Figure 2A top view of the internal structure of a fully automatic assembly machine for a rotary encoder provided in this embodiment of the present invention; Figure 3 A schematic diagram of the brush feeding assembly structure of a fully automatic assembly machine for a rotary encoder provided in this embodiment of the present invention; Figure 4 This is a schematic diagram of the encoder body feeding mechanism of a fully automatic assembly machine for a rotary encoder provided in this embodiment of the present invention.

[0019] Reference numerals in the drawings: 1. A fully automatic assembly machine body for a rotary encoder; 2. Indexing plate I; 3. Indexing plate II; 4. Rotor feeding assembly; 5. Rotor direction selection assembly; 6. Brush feeding assembly; 7. Brush detection assembly; 8. Brush riveting assembly; 9. Rotor transfer assembly; 10. Support feeding mechanism; 11. Spring feeding mechanism; 12. Rotor detection mechanism; 13. Encoder body feeding mechanism; 14. Encoder body detection mechanism; 15. Finished product discharge mechanism. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Example

[0021] Please refer to Figure 1-4 A fully automatic assembly machine for rotary encoders, used in the field of encoder assembly equipment, includes: The fully automatic assembly machine body 1 has a control system that combines a PLC and a touch screen. The PLC is installed in the electrical control cabinet inside the machine frame, and the touch screen is embedded in the operation panel at the front of the machine frame. The PLC and the touch screen are connected via an RS485 communication cable. Terminal resistors are installed at both ends of the communication cable to avoid signal interference. After the touch screen is fixed, it is connected to the power line to ensure normal display. The buzzer and indicator light of the alarm device are installed on the operation panel. The power line is connected to the alarm output terminal of the PLC. When an abnormality is detected, the PLC outputs a signal to trigger the alarm.

[0022] The surface of the mounting platform inside the fully automatic assembly machine body 1 is milled, and the positioning holes and bolt mounting holes of indexing plate I2 and indexing plate II3 are pre-machined. Both indexing plates I2 and II3 are DD direct drive motor indexing plates. Before installation, anti-slip rubber pads are laid on the corresponding positions of the mounting platform, covering the entire contact area of ​​the base. The base of indexing plate I2 is aligned with the positioning holes of the platform, and high-strength bolts are used to pass through the mounting holes of the base and tighten them to the platform, ensuring that the base and the platform fit tightly without looseness. Indexing plate II3 is connected to indexing plate I2 along the length of the platform, and is also fixed with high-strength bolts and anti-slip rubber pads. The height of the two indexing plate platforms is adjusted, and the rotation direction is set to clockwise. The DD direct drive motor cables of indexing plates I2 and II3 are routed through the internal cable trays of the frame. The motor power lines are connected to the air switch of the electrical control cabinet, the control lines are connected to the output terminals of the PLC, and the motor encoder signal lines are connected to the high-speed counting terminals of the PLC for feedback of speed and position signals.

[0023] The rotor feeding assembly 4 is installed on the outside of the rotor feeding station of the indexing plate I2. The corresponding vibratory feeder is fixed to the platform special mounting base by 4 sets of bolts. The bottom of the mounting base is equipped with a shock-absorbing pad. The feeder outlet is connected to a nylon guide sleeve. The outlet of the guide sleeve is aligned with the feeding station of the indexing plate I2. A 30° guide horn is set at the docking point.

[0024] The rotor orientation component 5 is fixed above the orientation station of the indexing plate I2 by an L-shaped aluminum alloy bracket. The bracket is bolted to the top beam of the frame. The photoelectric detection component is mounted on the bracket by a slider guide rail and aligned with the engraved area on the rotor surface. The miniature rotary cylinder is fixed on the mounting plate on the side of the station. The cylinder piston rod is connected to the rotor positioning shaft by a coupling. The positioning shaft is clearance-fitted with the rotor center hole.

[0025] The brush feeding assembly 6 is located next to the brush feeding station of the indexing plate I2, adjacent to the rotor direction selection assembly 5. The vibratory feeder is fixed on the platform, and its outlet is connected to the nylon guide sleeve. The guide sleeve is fixed by a lock nut. The secondary positioning fixture is installed below the indexing plate I2 station. The fixture cylinder is bolted to the indexing plate base. The clamping block is made of polyurethane. The fiber optic sensor of the brush detection assembly 7 is fixed to the side of the detection station of the indexing plate I2 by an L-shaped adjustment bracket. The bracket is bolted to the frame. The adjustment bracket makes the sensor detection angle 45°. After positioning, it is fixed with a lock nut to ensure stable detection signal.

[0026] The brush riveting assembly 8 is installed directly above the riveting station of the indexing plate I2 via a gantry-type bracket. The bracket beam is fastened to the machine frame, and the pneumatic pressure head is fixed on the slider of the bracket beam. The height of the pressure head is adjusted by a ball screw to ensure that the coaxiality between the pressure head axis and the center of the station is ≤0.03mm. The surface of the pressure head is covered with a polyurethane buffer layer. The air pressure regulating valve is installed on the side of the bracket and connected to the pneumatic pressure head through an air pipe. A pressure gauge is provided to display the pressure in real time.

[0027] The robot arm base of the rotor transfer assembly 9 is fixed at the center line between indexing plate I2 and indexing plate II3. The base is fastened to the platform with bolts, and a positioning pin is added to ensure installation accuracy. The robot arm adopts a horizontal multi-joint structure, and the installation height is flush with the table surface of the two indexing plates. The gripping head is a combination structure of vacuum suction cup and mechanical gripper, and the stroke covers the transfer station of the two indexing plates.

[0028] The support feeding mechanism 10 and the spring feeding mechanism 11 are installed adjacent to each other at the corresponding workstation of the indexing plate II3. The belt conveyor of the support feeding mechanism 10 is connected to the platform by bolts through the support. The discharge end is equipped with a polyurethane positioning baffle. The two-jaw centering clamp is installed on the support feeding workstation of the indexing plate II3 and is fixed to the workstation base by screws.

[0029] The column support of the spring feeding mechanism 11 is fixed on the platform. The vacuum adsorption head is connected to the vacuum pump through a flexible conduit. The adsorption head is installed on the top of the piston rod of the lifting cylinder. The adsorption head is made of silicone. The vacuum pump is fixed inside the frame and a shock-absorbing pad is installed at the bottom.

[0030] The rotor detection mechanism 12 and the encoder body detection mechanism 14 are symmetrically installed around the indexing plate II3. The photoelectric sensor of the rotor detection mechanism 12 is fixed on the platform by a U-shaped bracket, and the detection angle is perpendicular to the rotor axis. The pressure sensor of the encoder body detection mechanism 14 is fixed on the detection bracket by a threaded connection, and the detection head is a spherical structure.

[0031] The gate-shaped bracket of the encoder body feeding mechanism 13 is fixed on the platform. The small robot arm is installed on the crossbeam of the bracket. The gripping head is an elastic clamping structure that adapts to the shape of the encoder body. The body hopper is fixed on the side of the bracket. The automatic feeding track at the bottom of the hopper is aligned with the gripping position of the robot arm. The elastic clamping fixture on the workstation is driven by a cylinder.

[0032] The product riveting mechanism is integrated into the finished product discharge mechanism 15. Its gantry bracket is fastened to the installation platform with high-strength bolts. The bracket beam is perpendicular to the indexing plate II3 table surface. The servo pressure head is installed below the beam via a linear guide rail. The pressure head drive motor is a servo motor, and the lifting and lowering of the pressure head is controlled by a ball screw. The surface of the pressure head is covered with a 5mm thick polyurethane buffer layer. The pressure monitoring module uses a high-precision pressure sensor, which is installed inside the servo pressure head. Its signal line is connected to the analog input terminal of the PLC to transmit pressure data in real time. The control line of the servo pressure head is connected to the servo driver of the PLC to achieve precise control of pressure and stroke. The robotic arm base of the finished product discharge mechanism 15 is fixed to the outside of the discharge station of the indexing plate II3 with bolts. The base positioning pin ensures that the coaxiality between the gripper head and the center of the station is ≤0.03mm. The gripper head has a three-jaw structure, and the grippers are made of nylon. The storage container is placed on a movable tray, which is connected to the platform guide rail. The container is lined with a cushioning foam layer. The cables of each detection component are connected to the electrical control cabinet through waterproof connectors. The fiber optic sensor signal line of the brush detection component 7 is connected to the PLC input terminal, and the signal type is set to digital input. The photoelectric sensor signal lines of the rotor detection mechanism 12 and the pressure sensor signal lines of the encoder body detection mechanism 14 are respectively connected to the corresponding input channels of the PLC. Synchronous triggering is achieved through PLC programming. The drive cables of each actuator are wired according to functional zones. The motor power lines of the vibrating feeder and belt conveyor are connected to the contactor, and the contactor coil control lines are connected to the PLC output terminals. The control lines of the cylinder solenoid valve and the vacuum pump of the vacuum adsorption device are also connected to the PLC output terminals. The cables are covered with protective tubes to avoid wear. In actual operation, the main power switch is closed, and the fully automatic assembly machine body 1 of a rotary encoder is started. The PLC control system automatically completes self-test, and the touch screen displays the status of each mechanism. At this time, the indexing discs I2 and II3 are calibrated according to preset parameters to ensure that the speeds of the two indexing discs are consistent and the rotation direction is clockwise. Each feeding mechanism, detection mechanism, and transfer mechanism enters standby mode. A rotor is added to the vibrating feeder of the rotor feeding assembly 4, a brush is added to the vibrating feeder of the brush feeding assembly 6, a support is added to the belt conveyor of the support feeding mechanism 10, a spring is added to the hopper of the spring feeding mechanism 11, and the encoder body is added to the hopper of the encoder body feeding mechanism 13. The receiving container of the finished product discharging mechanism 15 is placed in place. Assembly parameters are set on the touch screen, including air... The dynamic pressure head working pressure, vacuum adsorption device negative pressure value, detection component threshold, etc., are all monitored. Click the start button and the equipment starts running. The vibrating feeder of rotor feeding component 4 transports the rotor to the feeding station of indexing plate I2. The three-jaw tensioning clamp centers and fixes the rotor. Indexing plate I2 rotates intermittently and the rotor is transferred to the orientation selection station. The photoelectric detection component identifies the laser engraving. When the direction is deviated, the micro rotary cylinder drives the rotor to adjust. After the rotor reaches the brush feeding station, the vibrating feeder of brush feeding component 6 sends the brush to the assembly surface through the nylon guide sleeve. The positioning clamp clamps the rotor again. Indexing plate I2 continues to rotate to the detection station. The fiber optic sensor detects the brush installation status. If it is qualified, it enters the riveting station. The pneumatic pressure head rivets and fixes the brush. If it is not qualified, the system triggers a buzzer alarm and the process is suspended. The pre-assembled rotor arrives at the transfer station with the indexing plate I2. The robot arm of the rotor transfer component 9 grabs the rotor and transfers it to the corresponding station of the indexing plate II3 through the guide positioning structure. At the same time, the belt conveyor of the bracket feeding mechanism 10 sends the bracket to the feeding station of the indexing plate II3. The two-jaw centering clamp fixes the bracket. The indexing plate II3 rotates to the spring feeding station. The vacuum adsorption device adsorbs the spring and places it in the bracket assembly slot. The positioning boss ensures that the spring is not loose. The indexing plate II3 rotates to the rotor docking station. The photoelectric sensor of the rotor detection mechanism 12 detects whether the rotor is in place. If it is qualified, it is transferred to the body assembly station. The robot arm of the encoder body feeding mechanism 13 sends the body to the assembly station. The elastic clamping clamp fixes each component. The rotor detection mechanism 12 and the encoder body detection mechanism 14 trigger detection synchronously. The pressure sensor detects the body contact pressure. If it is qualified, it is determined that the installation is in place. If it is not qualified, an alarm is triggered. After the main body assembly inspection is qualified, the indexing plate II3 rotates to the product riveting station. The positioning fixture centers and limits the encoder. The PLC sends instructions to control the servo pressure head to act according to preset parameters to complete the riveting reinforcement. The pressure monitoring module provides real-time feedback of pressure data. If the pressure is qualified, the pressure head resets and the fixture is released. If it is unqualified, the system alarms and the process is suspended. The qualified finished product after riveting reinforcement is picked up by the robotic arm of the finished product discharge mechanism 15 and transferred to the storage container. During the operation of the equipment, if there is a shortage of materials, failure to pass inspection, or abnormal riveting, the system records the fault information and suspends the corresponding process. After the fault is cleared, click the reset button to resume the operation of the equipment. After the batch production is completed, click the stop button. The equipment will complete the assembly, riveting and discharge of the remaining parts according to the program. Turn off the main power switch, clean the residual parts of each mechanism, and check whether the parts of the equipment are loose or worn to ensure normal operation next time.

[0033] However, as is well known to those skilled in the art, the working principle and wiring method of a fully automatic assembly machine body 1 for a rotary encoder are conventional means or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0034] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0035] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. In the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A fully automatic assembly machine for a rotary encoder, characterized in that, include: The fully automatic assembly machine body (1) has indexing plate I (2) and indexing plate II (3) connected in sequence on the top of the frame of the fully automatic assembly machine body (1). The indexing plate I (2) is used for the pre-assembly of the rotor and the brush, and the indexing plate II (3) is used to complete the overall assembly of the encoder. The indexing plate I (2) is equipped with a rotor feeding assembly (4) for conveying the rotor to the corresponding station of the indexing plate I (2), a rotor orientation assembly (5) for determining the rotor installation direction and adjusting it to a preset posture through an orientation selection mechanism, a brush feeding assembly (6) for conveying the brush to the rotor assembly station of the indexing plate I (2) and cooperating with the rotor positioning, a brush detection assembly (7) for detecting whether the brush is installed in place, a brush riveting assembly (8) for fixing the brush to the rotor, and a rotor transfer assembly (9) for transferring the pre-assembled rotor from the indexing plate I (2) to the corresponding station of the indexing plate II (3). The indexing plate I (2) achieves the sequential switching of the components of each station by intermittent rotation. The indexing plate II (3) is provided with a bracket feeding mechanism (10) for conveying the bracket to the assembly station of the indexing plate II (3), a spring feeding mechanism (11) for conveying the spring to the bracket assembly station of the indexing plate II (3) and positioning it with the bracket, a rotor detection mechanism (12) for detecting whether the pre-assembled rotor has been transferred to the position, an encoder body feeding mechanism (13) for conveying the encoder body to the final assembly station of the indexing plate II (3) and forming an integral assembly with the bracket, spring and pre-assembled rotor, an encoder body detection mechanism (14) for detecting whether the encoder body is installed in place, and a finished product discharge mechanism (15) for outputting the finished encoder that has been assembled and tested as a whole.

2. The fully automatic assembly machine for a rotary encoder according to claim 1, characterized in that, The brush detection component (7) is an optical fiber sensor. The detection end of the optical fiber sensor is aligned with the brush detection station on the indexing plate I (2) to identify the installation status of the brush and feed back the signal to the control system.

3. The fully automatic assembly machine for a rotary encoder according to claim 1, characterized in that, The support feeding mechanism (10) and the spring feeding mechanism (11) are arranged adjacent to each other, and the rotation direction of the indexing plate II (3) is consistent with that of the indexing plate I (2).

4. The fully automatic assembly machine for a rotary encoder according to claim 1, characterized in that, The rotor detection mechanism (12) and the encoder body detection mechanism (14) trigger detection actions synchronously. The rotor detection mechanism (12) is a photoelectric sensor that determines the installation status of the rotor by position recognition, and the encoder body detection mechanism (14) is a pressure sensor that determines the installation status of the encoder body by pressure feedback.

5. The fully automatic assembly machine for a rotary encoder according to claim 1, characterized in that, The finished product discharge mechanism (15) is implemented by a robotic gripper structure and is used to transfer qualified finished products to a storage container.

6. The fully automatic assembly machine for a rotary encoder according to claim 1, characterized in that, Both indexing plate I (2) and indexing plate II (3) are DD direct drive motor indexing plates. The indexing plate bases of both indexing plate I (2) and indexing plate II (3) are fastened to the mounting platform by high-strength bolts and anti-slip rubber pads are installed between the base and the platform.

Images